---
_id: '14933'
abstract:
- lang: eng
text: Centrioles are part of centrosomes and cilia, which are microtubule organising
centres (MTOC) with diverse functions. Despite their stability, centrioles can
disappear during differentiation, such as in oocytes, but little is known about
the regulation of their structural integrity. Our previous research revealed that
the pericentriolar material (PCM) that surrounds centrioles and its recruiter,
Polo kinase, are downregulated in oogenesis and sufficient for maintaining both
centrosome structural integrity and MTOC activity. We now show that the expression
of specific components of the centriole cartwheel and wall, including ANA1/CEP295,
is essential for maintaining centrosome integrity. We find that Polo kinase requires
ANA1 to promote centriole stability in cultured cells and eggs. In addition, ANA1
expression prevents the loss of centrioles observed upon PCM-downregulation. However,
the centrioles maintained by overexpressing and tethering ANA1 are inactive, unlike
the MTOCs observed upon tethering Polo kinase. These findings demonstrate that
several centriole components are needed to maintain centrosome structure. Our
study also highlights that centrioles are more dynamic than previously believed,
with their structural stability relying on the continuous expression of multiple
components.
acknowledgement: We thank all members of the Cell Cycle and Regulation Lab for the
discussions and for the critical reading of the manuscript. We thank Tomer Avidor-Reiss
(University of Toledo, Toledo, OH), Daniel St. Johnston (The Gurdon Institute, Cambridge,
UK), David Glover (University of Cambridge, Cambridge, UK), Jingyan Fu (Agricultural
University, Beijing, China) Jordan Raff (University of Oxford, Oxford, UK) and Timothy
Megraw (Florida State University, Tallahassee, FL) for sharing tools. We acknowledge
the technical support of Instituto Gulbenkian de Ciência (IGC)‘s Advanced Imaging
Facility, in particular Gabriel Martins, Nuno Pimpão Martins and José Marques. We
also thank Tiago Paixão from the IGC’s Quantitative & Digital Science Unit and Marco
Louro from the CCR lab for the support provided on statistical analysis. IGC’s Advanced
Imaging Facility (AIF-UIC) is supported by the national Portuguese funding ref#
PPBI-POCI-01-0145-FEDER -022122. We thank the IGC’s Fly Facility, supported by CONGENTO
(LISBOA-01-0145-FEDER-022170). This work was supported by an ERC grant (ERC-2015-CoG-683258)
awarded to MBD and a grant from the Portuguese Research Council (FCT) awarded to
APM (PTDC/BIA-BID/32225/2017).
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Ana
full_name: Pimenta-Marques, Ana
last_name: Pimenta-Marques
- first_name: Tania
full_name: Perestrelo, Tania
last_name: Perestrelo
- first_name: Patricia
full_name: Dos Reis Rodrigues, Patricia
id: 26E95904-5160-11E9-9C0B-C5B0DC97E90F
last_name: Dos Reis Rodrigues
orcid: 0000-0003-1681-508X
- first_name: Paulo
full_name: Duarte, Paulo
last_name: Duarte
- first_name: Ana
full_name: Ferreira-Silva, Ana
last_name: Ferreira-Silva
- first_name: Mariana
full_name: Lince-Faria, Mariana
last_name: Lince-Faria
- first_name: Mónica
full_name: Bettencourt-Dias, Mónica
last_name: Bettencourt-Dias
citation:
ama: Pimenta-Marques A, Perestrelo T, Dos Reis Rodrigues P, et al. Ana1/CEP295 is
an essential player in the centrosome maintenance program regulated by Polo kinase
and the PCM. EMBO reports. 2024;25(1):102-127. doi:10.1038/s44319-023-00020-6
apa: Pimenta-Marques, A., Perestrelo, T., Dos Reis Rodrigues, P., Duarte, P., Ferreira-Silva,
A., Lince-Faria, M., & Bettencourt-Dias, M. (2024). Ana1/CEP295 is an essential
player in the centrosome maintenance program regulated by Polo kinase and the
PCM. EMBO Reports. Embo Press. https://doi.org/10.1038/s44319-023-00020-6
chicago: Pimenta-Marques, Ana, Tania Perestrelo, Patricia Dos Reis Rodrigues, Paulo
Duarte, Ana Ferreira-Silva, Mariana Lince-Faria, and Mónica Bettencourt-Dias.
“Ana1/CEP295 Is an Essential Player in the Centrosome Maintenance Program Regulated
by Polo Kinase and the PCM.” EMBO Reports. Embo Press, 2024. https://doi.org/10.1038/s44319-023-00020-6.
ieee: A. Pimenta-Marques et al., “Ana1/CEP295 is an essential player in the
centrosome maintenance program regulated by Polo kinase and the PCM,” EMBO
reports, vol. 25, no. 1. Embo Press, pp. 102–127, 2024.
ista: Pimenta-Marques A, Perestrelo T, Dos Reis Rodrigues P, Duarte P, Ferreira-Silva
A, Lince-Faria M, Bettencourt-Dias M. 2024. Ana1/CEP295 is an essential player
in the centrosome maintenance program regulated by Polo kinase and the PCM. EMBO
reports. 25(1), 102–127.
mla: Pimenta-Marques, Ana, et al. “Ana1/CEP295 Is an Essential Player in the Centrosome
Maintenance Program Regulated by Polo Kinase and the PCM.” EMBO Reports,
vol. 25, no. 1, Embo Press, 2024, pp. 102–27, doi:10.1038/s44319-023-00020-6.
short: A. Pimenta-Marques, T. Perestrelo, P. Dos Reis Rodrigues, P. Duarte, A. Ferreira-Silva,
M. Lince-Faria, M. Bettencourt-Dias, EMBO Reports 25 (2024) 102–127.
date_created: 2024-02-04T23:00:53Z
date_published: 2024-01-10T00:00:00Z
date_updated: 2024-02-05T12:37:07Z
day: '10'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.1038/s44319-023-00020-6
file:
- access_level: open_access
checksum: 53c3ef43d9bd6d7bff3ffcf57d763cac
content_type: application/pdf
creator: dernst
date_created: 2024-02-05T12:35:03Z
date_updated: 2024-02-05T12:35:03Z
file_id: '14941'
file_name: 2023_EmboReports_PimentaMarques.pdf
file_size: 9645056
relation: main_file
success: 1
file_date_updated: 2024-02-05T12:35:03Z
has_accepted_license: '1'
intvolume: ' 25'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 102-127
publication: EMBO reports
publication_identifier:
eissn:
- 1469-3178
publication_status: published
publisher: Embo Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ana1/CEP295 is an essential player in the centrosome maintenance program regulated
by Polo kinase and the PCM
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 25
year: '2024'
...
---
_id: '14846'
abstract:
- lang: eng
text: Contraction and flow of the actin cell cortex have emerged as a common principle
by which cells reorganize their cytoplasm and take shape. However, how these cortical
flows interact with adjacent cytoplasmic components, changing their form and localization,
and how this affects cytoplasmic organization and cell shape remains unclear.
Here we show that in ascidian oocytes, the cooperative activities of cortical
actomyosin flows and deformation of the adjacent mitochondria-rich myoplasm drive
oocyte cytoplasmic reorganization and shape changes following fertilization. We
show that vegetal-directed cortical actomyosin flows, established upon oocyte
fertilization, lead to both the accumulation of cortical actin at the vegetal
pole of the zygote and compression and local buckling of the adjacent elastic
solid-like myoplasm layer due to friction forces generated at their interface.
Once cortical flows have ceased, the multiple myoplasm buckles resolve into one
larger buckle, which again drives the formation of the contraction pole—a protuberance
of the zygote’s vegetal pole where maternal mRNAs accumulate. Thus, our findings
reveal a mechanism where cortical actomyosin network flows determine cytoplasmic
reorganization and cell shape by deforming adjacent cytoplasmic components through
friction forces.
acknowledged_ssus:
- _id: EM-Fac
- _id: Bio
- _id: NanoFab
acknowledgement: We would like to thank A. McDougall, E. Hannezo and the Heisenberg
lab for fruitful discussions and reagents. We also thank E. Munro for the iMyo-YFP
and Bra>iMyo-mScarlet constructs. This research was supported by the Scientific
Service Units of the Institute of Science and Technology Austria through resources
provided by the Electron Microscopy Facility, Imaging and Optics Facility and the
Nanofabrication Facility. This work was supported by a Joint Project Grant from
the FWF (I 3601-B27).
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Silvia
full_name: Caballero Mancebo, Silvia
id: 2F1E1758-F248-11E8-B48F-1D18A9856A87
last_name: Caballero Mancebo
orcid: 0000-0002-5223-3346
- first_name: Rushikesh
full_name: Shinde, Rushikesh
last_name: Shinde
- first_name: Madison
full_name: Bolger-Munro, Madison
id: 516F03FA-93A3-11EA-A7C5-D6BE3DDC885E
last_name: Bolger-Munro
orcid: 0000-0002-8176-4824
- first_name: Matilda
full_name: Peruzzo, Matilda
id: 3F920B30-F248-11E8-B48F-1D18A9856A87
last_name: Peruzzo
orcid: 0000-0002-3415-4628
- first_name: Gregory
full_name: Szep, Gregory
id: 4BFB7762-F248-11E8-B48F-1D18A9856A87
last_name: Szep
- first_name: Irene
full_name: Steccari, Irene
id: 2705C766-9FE2-11EA-B224-C6773DDC885E
last_name: Steccari
- first_name: David
full_name: Labrousse Arias, David
id: CD573DF4-9ED3-11E9-9D77-3223E6697425
last_name: Labrousse Arias
- first_name: Vanessa
full_name: Zheden, Vanessa
id: 39C5A68A-F248-11E8-B48F-1D18A9856A87
last_name: Zheden
orcid: 0000-0002-9438-4783
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Andrew
full_name: Callan-Jones, Andrew
last_name: Callan-Jones
- first_name: Raphaël
full_name: Voituriez, Raphaël
last_name: Voituriez
- first_name: Carl-Philipp J
full_name: Heisenberg, Carl-Philipp J
id: 39427864-F248-11E8-B48F-1D18A9856A87
last_name: Heisenberg
orcid: 0000-0002-0912-4566
citation:
ama: Caballero Mancebo S, Shinde R, Bolger-Munro M, et al. Friction forces determine
cytoplasmic reorganization and shape changes of ascidian oocytes upon fertilization.
Nature Physics. 2024. doi:10.1038/s41567-023-02302-1
apa: Caballero Mancebo, S., Shinde, R., Bolger-Munro, M., Peruzzo, M., Szep, G.,
Steccari, I., … Heisenberg, C.-P. J. (2024). Friction forces determine cytoplasmic
reorganization and shape changes of ascidian oocytes upon fertilization. Nature
Physics. Springer Nature. https://doi.org/10.1038/s41567-023-02302-1
chicago: Caballero Mancebo, Silvia, Rushikesh Shinde, Madison Bolger-Munro, Matilda
Peruzzo, Gregory Szep, Irene Steccari, David Labrousse Arias, et al. “Friction
Forces Determine Cytoplasmic Reorganization and Shape Changes of Ascidian Oocytes
upon Fertilization.” Nature Physics. Springer Nature, 2024. https://doi.org/10.1038/s41567-023-02302-1.
ieee: S. Caballero Mancebo et al., “Friction forces determine cytoplasmic
reorganization and shape changes of ascidian oocytes upon fertilization,” Nature
Physics. Springer Nature, 2024.
ista: Caballero Mancebo S, Shinde R, Bolger-Munro M, Peruzzo M, Szep G, Steccari
I, Labrousse Arias D, Zheden V, Merrin J, Callan-Jones A, Voituriez R, Heisenberg
C-PJ. 2024. Friction forces determine cytoplasmic reorganization and shape changes
of ascidian oocytes upon fertilization. Nature Physics.
mla: Caballero Mancebo, Silvia, et al. “Friction Forces Determine Cytoplasmic Reorganization
and Shape Changes of Ascidian Oocytes upon Fertilization.” Nature Physics,
Springer Nature, 2024, doi:10.1038/s41567-023-02302-1.
short: S. Caballero Mancebo, R. Shinde, M. Bolger-Munro, M. Peruzzo, G. Szep, I.
Steccari, D. Labrousse Arias, V. Zheden, J. Merrin, A. Callan-Jones, R. Voituriez,
C.-P.J. Heisenberg, Nature Physics (2024).
date_created: 2024-01-21T23:00:57Z
date_published: 2024-01-09T00:00:00Z
date_updated: 2024-03-05T09:33:38Z
day: '09'
department:
- _id: CaHe
- _id: JoFi
- _id: MiSi
- _id: EM-Fac
- _id: NanoFab
doi: 10.1038/s41567-023-02302-1
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41567-023-02302-1
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 2646861A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03601
name: Control of embryonic cleavage pattern
publication: Nature Physics
publication_identifier:
eissn:
- 1745-2481
issn:
- 1745-2473
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- description: News on ISTA Website
relation: press_release
url: https://ista.ac.at/en/news/stranger-than-friction-a-force-initiating-life/
scopus_import: '1'
status: public
title: Friction forces determine cytoplasmic reorganization and shape changes of ascidian
oocytes upon fertilization
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '15146'
abstract:
- lang: eng
text: The extracellular matrix (ECM) serves as a scaffold for cells and plays an
essential role in regulating numerous cellular processes, including cell migration
and proliferation. Due to limitations in specimen preparation for conventional
room-temperature electron microscopy, we lack structural knowledge on how ECM
components are secreted, remodeled, and interact with surrounding cells. We have
developed a 3D-ECM platform compatible with sample thinning by cryo-focused ion
beam milling, the lift-out extraction procedure, and cryo-electron tomography.
Our workflow implements cell-derived matrices (CDMs) grown on EM grids, resulting
in a versatile tool closely mimicking ECM environments. This allows us to visualize
ECM for the first time in its hydrated, native context. Our data reveal an intricate
network of extracellular fibers, their positioning relative to matrix-secreting
cells, and previously unresolved structural entities. Our workflow and results
add to the structural atlas of the ECM, providing novel insights into its secretion
and assembly.
acknowledged_ssus:
- _id: LifeSc
- _id: ScienComp
- _id: EM-Fac
- _id: M-Shop
acknowledgement: "Open Access funding provided by IST Austria. We thank Armel Nicolas
and his team at the ISTA proteomics facility, Alois Schloegl, Stefano Elefante,
and colleagues at the ISTA Scientific Computing facility, Tommaso Constanzo and
Ludek Lovicar at the Electron Microsocpy Facility (EMF), and Thomas Menner at the
Miba Machine shop for their support. We also thank Wanda Kukulski (University of
Bern) as well as Darío Porley, Andreas Thader, and other members of the Schur group
for helpful discussions. Matt Swulius and Jessica Heebner provided great support
in using Dragonfly. We thank Dorotea Fracciolla (Art & Science) for support in figure
illustration.\r\n\r\nThis research was supported by the Scientific Service Units
of ISTA through resources provided by Scientific Computing, the Lab Support Facility,
and the Electron Microscopy Facility. We acknowledge funding support from the following
sources: Austrian Science Fund (FWF) grant P33367 (to F.K.M. Schur), the Federation
of European Biochemical Societies (to F.K.M. Schur), Niederösterreich (NÖ) Fonds
(to B. Zens), FWF grant E435 (to J.M. Hansen), European Research Council under the
European Union’s Horizon 2020 research (grant agreement No. 724373) (to M. Sixt),
and Jenny and Antti Wihuri Foundation (to J. Alanko). This publication has been
made possible in part by CZI grant DAF2021-234754 and grant DOI https://doi.org/10.37921/812628ebpcwg
from the Chan Zuckerberg Initiative DAF, an advised fund of Silicon Valley Community
Foundation (to F.K.M. Schur)."
article_number: e202309125
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Bettina
full_name: Zens, Bettina
id: 45FD126C-F248-11E8-B48F-1D18A9856A87
last_name: Zens
- first_name: Florian
full_name: Fäßler, Florian
id: 404F5528-F248-11E8-B48F-1D18A9856A87
last_name: Fäßler
orcid: 0000-0001-7149-769X
- first_name: Jesse
full_name: Hansen, Jesse
id: 1063c618-6f9b-11ec-9123-f912fccded63
last_name: Hansen
- first_name: Robert
full_name: Hauschild, Robert
id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
last_name: Hauschild
orcid: 0000-0001-9843-3522
- first_name: Julia
full_name: Datler, Julia
id: 3B12E2E6-F248-11E8-B48F-1D18A9856A87
last_name: Datler
orcid: 0000-0002-3616-8580
- first_name: Victor-Valentin
full_name: Hodirnau, Victor-Valentin
id: 3661B498-F248-11E8-B48F-1D18A9856A87
last_name: Hodirnau
- first_name: Vanessa
full_name: Zheden, Vanessa
id: 39C5A68A-F248-11E8-B48F-1D18A9856A87
last_name: Zheden
orcid: 0000-0002-9438-4783
- first_name: Jonna H
full_name: Alanko, Jonna H
id: 2CC12E8C-F248-11E8-B48F-1D18A9856A87
last_name: Alanko
orcid: 0000-0002-7698-3061
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
- first_name: Florian KM
full_name: Schur, Florian KM
id: 48AD8942-F248-11E8-B48F-1D18A9856A87
last_name: Schur
orcid: 0000-0003-4790-8078
citation:
ama: Zens B, Fäßler F, Hansen J, et al. Lift-out cryo-FIBSEM and cryo-ET reveal
the ultrastructural landscape of extracellular matrix. Journal of Cell Biology.
2024;223(6). doi:10.1083/jcb.202309125
apa: Zens, B., Fäßler, F., Hansen, J., Hauschild, R., Datler, J., Hodirnau, V.-V.,
… Schur, F. K. (2024). Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural
landscape of extracellular matrix. Journal of Cell Biology. Rockefeller
University Press. https://doi.org/10.1083/jcb.202309125
chicago: Zens, Bettina, Florian Fäßler, Jesse Hansen, Robert Hauschild, Julia Datler,
Victor-Valentin Hodirnau, Vanessa Zheden, Jonna H Alanko, Michael K Sixt, and
Florian KM Schur. “Lift-out Cryo-FIBSEM and Cryo-ET Reveal the Ultrastructural
Landscape of Extracellular Matrix.” Journal of Cell Biology. Rockefeller
University Press, 2024. https://doi.org/10.1083/jcb.202309125.
ieee: B. Zens et al., “Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural
landscape of extracellular matrix,” Journal of Cell Biology, vol. 223,
no. 6. Rockefeller University Press, 2024.
ista: Zens B, Fäßler F, Hansen J, Hauschild R, Datler J, Hodirnau V-V, Zheden V,
Alanko JH, Sixt MK, Schur FK. 2024. Lift-out cryo-FIBSEM and cryo-ET reveal the
ultrastructural landscape of extracellular matrix. Journal of Cell Biology. 223(6),
e202309125.
mla: Zens, Bettina, et al. “Lift-out Cryo-FIBSEM and Cryo-ET Reveal the Ultrastructural
Landscape of Extracellular Matrix.” Journal of Cell Biology, vol. 223,
no. 6, e202309125, Rockefeller University Press, 2024, doi:10.1083/jcb.202309125.
short: B. Zens, F. Fäßler, J. Hansen, R. Hauschild, J. Datler, V.-V. Hodirnau, V.
Zheden, J.H. Alanko, M.K. Sixt, F.K. Schur, Journal of Cell Biology 223 (2024).
date_created: 2024-03-21T06:45:51Z
date_published: 2024-03-20T00:00:00Z
date_updated: 2024-03-25T13:03:57Z
day: '20'
ddc:
- '570'
department:
- _id: FlSc
- _id: MiSi
- _id: Bio
- _id: EM-Fac
doi: 10.1083/jcb.202309125
ec_funded: 1
external_id:
pmid:
- '38506714'
file:
- access_level: open_access
checksum: 90d1984a93660735e506c2a304bc3f73
content_type: application/pdf
creator: dernst
date_created: 2024-03-25T12:52:04Z
date_updated: 2024-03-25T12:52:04Z
file_id: '15188'
file_name: 2024_JCB_Zens.pdf
file_size: 11907016
relation: main_file
success: 1
file_date_updated: 2024-03-25T12:52:04Z
has_accepted_license: '1'
intvolume: ' 223'
issue: '6'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 9B954C5C-BA93-11EA-9121-9846C619BF3A
grant_number: P33367
name: Structure and isoform diversity of the Arp2/3 complex
- _id: 7bd318a1-9f16-11ee-852c-cc9217763180
grant_number: E435
name: In Situ Actin Structures via Hybrid Cryo-electron Microscopy
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '724373'
name: Cellular navigation along spatial gradients
- _id: 059B463C-7A3F-11EA-A408-12923DDC885E
name: NÖ-Fonds Preis für die Jungforscherin des Jahres am IST Austria
- _id: 2615199A-B435-11E9-9278-68D0E5697425
grant_number: '21317'
name: Spatiotemporal regulation of chemokine-induced signalling in leukocyte chemotaxis
- _id: 62909c6f-2b32-11ec-9570-e1476aab5308
grant_number: CZI01
name: CryoMinflux-guided in-situ visual proteomics and structure determination
publication: Journal of Cell Biology
publication_identifier:
eissn:
- 1540-8140
issn:
- 0021-9525
publication_status: published
publisher: Rockefeller University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural landscape of extracellular
matrix
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 223
year: '2024'
...
---
_id: '13052'
abstract:
- lang: eng
text: Imaging of the immunological synapse (IS) between dendritic cells (DCs) and
T cells in suspension is hampered by suboptimal alignment of cell-cell contacts
along the vertical imaging plane. This requires optical sectioning that often
results in unsatisfactory resolution in time and space. Here, we present a workflow
where DCs and T cells are confined between a layer of glass and polydimethylsiloxane
(PDMS) that orients the cells along one, horizontal imaging plane, allowing for
fast en-face-imaging of the DC-T cell IS.
acknowledged_ssus:
- _id: Bio
- _id: NanoFab
- _id: M-Shop
acknowledgement: 'A.L. was funded by an Erwin Schrödinger postdoctoral fellowship
of the Austrian Science Fund (FWF, project number: J4542-B) and is an EMBO non-stipendiary
postdoctoral fellow. This work was supported by a European Research Council grant
ERC-CoG-72437 to M.S. We thank the Imaging & Optics facility, the Nanofabrication
facility, and the Miba Machine Shop of ISTA for their excellent support.'
alternative_title:
- Methods in Molecular Biology
article_processing_charge: No
author:
- first_name: Alexander F
full_name: Leithner, Alexander F
id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
last_name: Leithner
orcid: 0000-0002-1073-744X
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
citation:
ama: 'Leithner AF, Merrin J, Sixt MK. En-Face Imaging of T Cell-Dendritic Cell Immunological
Synapses. In: Baldari C, Dustin M, eds. The Immune Synapse. Vol 2654. MIMB.
New York, NY: Springer Nature; 2023:137-147. doi:10.1007/978-1-0716-3135-5_9'
apa: 'Leithner, A. F., Merrin, J., & Sixt, M. K. (2023). En-Face Imaging of
T Cell-Dendritic Cell Immunological Synapses. In C. Baldari & M. Dustin (Eds.),
The Immune Synapse (Vol. 2654, pp. 137–147). New York, NY: Springer Nature.
https://doi.org/10.1007/978-1-0716-3135-5_9'
chicago: 'Leithner, Alexander F, Jack Merrin, and Michael K Sixt. “En-Face Imaging
of T Cell-Dendritic Cell Immunological Synapses.” In The Immune Synapse,
edited by Cosima Baldari and Michael Dustin, 2654:137–47. MIMB. New York, NY:
Springer Nature, 2023. https://doi.org/10.1007/978-1-0716-3135-5_9.'
ieee: 'A. F. Leithner, J. Merrin, and M. K. Sixt, “En-Face Imaging of T Cell-Dendritic
Cell Immunological Synapses,” in The Immune Synapse, vol. 2654, C. Baldari
and M. Dustin, Eds. New York, NY: Springer Nature, 2023, pp. 137–147.'
ista: 'Leithner AF, Merrin J, Sixt MK. 2023.En-Face Imaging of T Cell-Dendritic
Cell Immunological Synapses. In: The Immune Synapse. Methods in Molecular Biology,
vol. 2654, 137–147.'
mla: Leithner, Alexander F., et al. “En-Face Imaging of T Cell-Dendritic Cell Immunological
Synapses.” The Immune Synapse, edited by Cosima Baldari and Michael Dustin,
vol. 2654, Springer Nature, 2023, pp. 137–47, doi:10.1007/978-1-0716-3135-5_9.
short: A.F. Leithner, J. Merrin, M.K. Sixt, in:, C. Baldari, M. Dustin (Eds.), The
Immune Synapse, Springer Nature, New York, NY, 2023, pp. 137–147.
date_created: 2023-05-22T08:41:48Z
date_published: 2023-04-28T00:00:00Z
date_updated: 2023-10-17T08:44:53Z
day: '28'
department:
- _id: MiSi
- _id: NanoFab
doi: 10.1007/978-1-0716-3135-5_9
ec_funded: 1
editor:
- first_name: Cosima
full_name: Baldari, Cosima
last_name: Baldari
- first_name: Michael
full_name: Dustin, Michael
last_name: Dustin
external_id:
pmid:
- '37106180'
intvolume: ' 2654'
language:
- iso: eng
month: '04'
oa_version: None
page: 137-147
place: New York, NY
pmid: 1
project:
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '724373'
name: Cellular navigation along spatial gradients
publication: The Immune Synapse
publication_identifier:
eisbn:
- '9781071631355'
eissn:
- 1940-6029
isbn:
- '9781071631348'
issn:
- 1064-3745
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
series_title: MIMB
status: public
title: En-Face Imaging of T Cell-Dendritic Cell Immunological Synapses
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2654
year: '2023'
...
---
_id: '14555'
abstract:
- lang: eng
text: The intricate regulatory processes behind actin polymerization play a crucial
role in cellular biology, including essential mechanisms such as cell migration
or cell division. However, the self-organizing principles governing actin polymerization
are still poorly understood. In this perspective article, we compare the Belousov-Zhabotinsky
(BZ) reaction, a classic and well understood chemical oscillator known for its
self-organizing spatiotemporal dynamics, with the excitable dynamics of polymerizing
actin. While the BZ reaction originates from the domain of inorganic chemistry,
it shares remarkable similarities with actin polymerization, including the characteristic
propagating waves, which are influenced by geometry and external fields, and the
emergent collective behavior. Starting with a general description of emerging
patterns, we elaborate on single droplets or cell-level dynamics, the influence
of geometric confinements and conclude with collective interactions. Comparing
these two systems sheds light on the universal nature of self-organization principles
in both living and inanimate systems.
acknowledgement: The author(s) declare that no financial support was received for
the research, authorship, and/or publication of this article.
article_number: '1287420'
article_processing_charge: Yes
article_type: original
author:
- first_name: Michael
full_name: Riedl, Michael
id: 3BE60946-F248-11E8-B48F-1D18A9856A87
last_name: Riedl
orcid: 0000-0003-4844-6311
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
citation:
ama: Riedl M, Sixt MK. The excitable nature of polymerizing actin and the Belousov-Zhabotinsky
reaction. Frontiers in Cell and Developmental Biology. 2023;11. doi:10.3389/fcell.2023.1287420
apa: Riedl, M., & Sixt, M. K. (2023). The excitable nature of polymerizing actin
and the Belousov-Zhabotinsky reaction. Frontiers in Cell and Developmental
Biology. Frontiers. https://doi.org/10.3389/fcell.2023.1287420
chicago: Riedl, Michael, and Michael K Sixt. “The Excitable Nature of Polymerizing
Actin and the Belousov-Zhabotinsky Reaction.” Frontiers in Cell and Developmental
Biology. Frontiers, 2023. https://doi.org/10.3389/fcell.2023.1287420.
ieee: M. Riedl and M. K. Sixt, “The excitable nature of polymerizing actin and the
Belousov-Zhabotinsky reaction,” Frontiers in Cell and Developmental Biology,
vol. 11. Frontiers, 2023.
ista: Riedl M, Sixt MK. 2023. The excitable nature of polymerizing actin and the
Belousov-Zhabotinsky reaction. Frontiers in Cell and Developmental Biology. 11,
1287420.
mla: Riedl, Michael, and Michael K. Sixt. “The Excitable Nature of Polymerizing
Actin and the Belousov-Zhabotinsky Reaction.” Frontiers in Cell and Developmental
Biology, vol. 11, 1287420, Frontiers, 2023, doi:10.3389/fcell.2023.1287420.
short: M. Riedl, M.K. Sixt, Frontiers in Cell and Developmental Biology 11 (2023).
date_created: 2023-11-19T23:00:55Z
date_published: 2023-10-31T00:00:00Z
date_updated: 2023-11-20T08:44:17Z
day: '31'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.3389/fcell.2023.1287420
file:
- access_level: open_access
checksum: 61857fc3ebf019354932e7ee684658ce
content_type: application/pdf
creator: dernst
date_created: 2023-11-20T08:41:15Z
date_updated: 2023-11-20T08:41:15Z
file_id: '14561'
file_name: 2023_FrontiersCellDevBio_Riedl.pdf
file_size: 2047622
relation: main_file
success: 1
file_date_updated: 2023-11-20T08:41:15Z
has_accepted_license: '1'
intvolume: ' 11'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
publication: Frontiers in Cell and Developmental Biology
publication_identifier:
eissn:
- 2296-634X
publication_status: published
publisher: Frontiers
quality_controlled: '1'
scopus_import: '1'
status: public
title: The excitable nature of polymerizing actin and the Belousov-Zhabotinsky reaction
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2023'
...
---
_id: '14530'
abstract:
- lang: eng
text: 'Most motions of many-body systems at any scale in nature with sufficient
degrees of freedom tend to be chaotic; reaching from the orbital motion of planets,
the air currents in our atmosphere, down to the water flowing through our pipelines
or the movement of a population of bacteria. To the observer it is therefore intriguing
when a moving collective exhibits order. Collective motion of flocks of birds,
schools of fish or swarms of self-propelled particles or robots have been studied
extensively over the past decades but the mechanisms involved in the transition
from chaos to order remain unclear. Here, the interactions, that in most systems
give rise to chaos, sustain order. In this thesis we investigate mechanisms that
preserve, destabilize or lead to the ordered state. We show that endothelial cells
migrating in circular confinements transition to a collective rotating state and
concomitantly synchronize the frequencies of nucleating actin waves within individual
cells. Consequently, the frequency dependent cell migration speed uniformizes
across the population. Complementary to the WAVE dependent nucleation of traveling
actin waves, we show that in leukocytes the actin polymerization depending on
WASp generates pushing forces locally at stationary patches. Next, in pipe flows,
we study methods to disrupt the self--sustaining cycle of turbulence and therefore
relaminarize the flow. While we find in pulsating flow conditions that turbulence
emerges through a helical instability during the decelerating phase. Finally,
we show quantitatively in brain slices of mice that wild-type control neurons
can compensate the migratory deficits of a genetically modified neuronal sub--population
in the developing cortex. '
acknowledged_ssus:
- _id: M-Shop
- _id: Bio
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Michael
full_name: Riedl, Michael
id: 3BE60946-F248-11E8-B48F-1D18A9856A87
last_name: Riedl
orcid: 0000-0003-4844-6311
citation:
ama: Riedl M. Synchronization in collectively moving active matter. 2023. doi:10.15479/14530
apa: Riedl, M. (2023). Synchronization in collectively moving active matter.
Institute of Science and Technology Austria. https://doi.org/10.15479/14530
chicago: Riedl, Michael. “Synchronization in Collectively Moving Active Matter.”
Institute of Science and Technology Austria, 2023. https://doi.org/10.15479/14530.
ieee: M. Riedl, “Synchronization in collectively moving active matter,” Institute
of Science and Technology Austria, 2023.
ista: Riedl M. 2023. Synchronization in collectively moving active matter. Institute
of Science and Technology Austria.
mla: Riedl, Michael. Synchronization in Collectively Moving Active Matter.
Institute of Science and Technology Austria, 2023, doi:10.15479/14530.
short: M. Riedl, Synchronization in Collectively Moving Active Matter, Institute
of Science and Technology Austria, 2023.
date_created: 2023-11-15T09:59:03Z
date_published: 2023-11-16T00:00:00Z
date_updated: 2023-11-30T10:55:13Z
day: '16'
ddc:
- '530'
- '570'
degree_awarded: PhD
department:
- _id: GradSch
- _id: MiSi
doi: 10.15479/14530
file:
- access_level: open_access
checksum: 52e1d0ab6c1abe59c82dfe8c9ff5f83a
content_type: application/pdf
creator: mriedl
date_created: 2023-11-15T09:52:54Z
date_updated: 2023-11-15T09:52:54Z
file_id: '14536'
file_name: Thesis_Riedl_2023_corr.pdf
file_size: 36743942
relation: main_file
success: 1
file_date_updated: 2023-11-15T09:52:54Z
has_accepted_license: '1'
keyword:
- Synchronization
- Collective Movement
- Active Matter
- Cell Migration
- Active Colloids
language:
- iso: eng
month: '11'
oa: 1
oa_version: Updated Version
page: '260'
publication_identifier:
issn:
- 2663 - 337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '10703'
relation: part_of_dissertation
status: public
- id: '10791'
relation: part_of_dissertation
status: public
- id: '7932'
relation: part_of_dissertation
status: public
- id: '461'
relation: part_of_dissertation
status: public
- id: '12726'
relation: old_edition
status: public
status: public
supervisor:
- first_name: Björn
full_name: Hof, Björn
id: 3A374330-F248-11E8-B48F-1D18A9856A87
last_name: Hof
orcid: 0000-0003-2057-2754
title: Synchronization in collectively moving active matter
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...
---
_id: '14361'
abstract:
- lang: eng
text: Whether one considers swarming insects, flocking birds, or bacterial colonies,
collective motion arises from the coordination of individuals and entails the
adjustment of their respective velocities. In particular, in close confinements,
such as those encountered by dense cell populations during development or regeneration,
collective migration can only arise coordinately. Yet, how individuals unify their
velocities is often not understood. Focusing on a finite number of cells in circular
confinements, we identify waves of polymerizing actin that function as a pacemaker
governing the speed of individual cells. We show that the onset of collective
motion coincides with the synchronization of the wave nucleation frequencies across
the population. Employing a simpler and more readily accessible mechanical model
system of active spheres, we identify the synchronization of the individuals’
internal oscillators as one of the essential requirements to reach the corresponding
collective state. The mechanical ‘toy’ experiment illustrates that the global
synchronous state is achieved by nearest neighbor coupling. We suggest by analogy
that local coupling and the synchronization of actin waves are essential for the
emergent, self-organized motion of cell collectives.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
- _id: M-Shop
acknowledgement: We thank K. O’Keeffe, E. Hannezo, P. Devreotes, C. Dessalles, and
E. Martens for discussion and/or critical reading of the manuscript; the Bioimaging
Facility of ISTA for excellent support, as well as the Life Science Facility and
the Miba Machine Shop of ISTA. This work was supported by the European Research
Council (ERC StG 281556 and CoG 724373) to M.S.
article_number: '5633'
article_processing_charge: Yes
article_type: original
author:
- first_name: Michael
full_name: Riedl, Michael
id: 3BE60946-F248-11E8-B48F-1D18A9856A87
last_name: Riedl
orcid: 0000-0003-4844-6311
- first_name: Isabelle D
full_name: Mayer, Isabelle D
id: 61763940-15b2-11ec-abd3-cfaddfbc66b4
last_name: Mayer
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
- first_name: Björn
full_name: Hof, Björn
id: 3A374330-F248-11E8-B48F-1D18A9856A87
last_name: Hof
orcid: 0000-0003-2057-2754
citation:
ama: Riedl M, Mayer ID, Merrin J, Sixt MK, Hof B. Synchronization in collectively
moving inanimate and living active matter. Nature Communications. 2023;14.
doi:10.1038/s41467-023-41432-1
apa: Riedl, M., Mayer, I. D., Merrin, J., Sixt, M. K., & Hof, B. (2023). Synchronization
in collectively moving inanimate and living active matter. Nature Communications.
Springer Nature. https://doi.org/10.1038/s41467-023-41432-1
chicago: Riedl, Michael, Isabelle D Mayer, Jack Merrin, Michael K Sixt, and Björn
Hof. “Synchronization in Collectively Moving Inanimate and Living Active Matter.”
Nature Communications. Springer Nature, 2023. https://doi.org/10.1038/s41467-023-41432-1.
ieee: M. Riedl, I. D. Mayer, J. Merrin, M. K. Sixt, and B. Hof, “Synchronization
in collectively moving inanimate and living active matter,” Nature Communications,
vol. 14. Springer Nature, 2023.
ista: Riedl M, Mayer ID, Merrin J, Sixt MK, Hof B. 2023. Synchronization in collectively
moving inanimate and living active matter. Nature Communications. 14, 5633.
mla: Riedl, Michael, et al. “Synchronization in Collectively Moving Inanimate and
Living Active Matter.” Nature Communications, vol. 14, 5633, Springer Nature,
2023, doi:10.1038/s41467-023-41432-1.
short: M. Riedl, I.D. Mayer, J. Merrin, M.K. Sixt, B. Hof, Nature Communications
14 (2023).
date_created: 2023-09-24T22:01:10Z
date_published: 2023-09-13T00:00:00Z
date_updated: 2023-12-13T12:29:41Z
day: '13'
ddc:
- '530'
- '570'
department:
- _id: MiSi
- _id: NanoFab
- _id: BjHo
doi: 10.1038/s41467-023-41432-1
ec_funded: 1
external_id:
isi:
- '001087583700030'
pmid:
- '37704595'
file:
- access_level: open_access
checksum: 82d2d4ad736cc8493db8ce45cd313f7b
content_type: application/pdf
creator: dernst
date_created: 2023-09-25T08:32:37Z
date_updated: 2023-09-25T08:32:37Z
file_id: '14366'
file_name: 2023_NatureComm_Riedl.pdf
file_size: 2317272
relation: main_file
success: 1
file_date_updated: 2023-09-25T08:32:37Z
has_accepted_license: '1'
intvolume: ' 14'
isi: 1
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '281556'
name: Cytoskeletal force generation and force transduction of migrating leukocytes
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '724373'
name: Cellular navigation along spatial gradients
publication: Nature Communications
publication_identifier:
eissn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Synchronization in collectively moving inanimate and living active matter
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2023'
...
---
_id: '14360'
abstract:
- lang: eng
text: To navigate through diverse tissues, migrating cells must balance persistent
self-propelled motion with adaptive behaviors to circumvent obstacles. We identify
a curvature-sensing mechanism underlying obstacle evasion in immune-like cells.
Specifically, we propose that actin polymerization at the advancing edge of migrating
cells is inhibited by the curvature-sensitive BAR domain protein Snx33 in regions
with inward plasma membrane curvature. The genetic perturbation of this machinery
reduces the cells’ capacity to evade obstructions combined with faster and more
persistent cell migration in obstacle-free environments. Our results show how
cells can read out their surface topography and utilize actin and plasma membrane
biophysics to interpret their environment, allowing them to adaptively decide
if they should move ahead or turn away. On the basis of our findings, we propose
that the natural diversity of BAR domain proteins may allow cells to tune their
curvature sensing machinery to match the shape characteristics in their environment.
acknowledgement: "We thank Jan Ellenberg, Leanne Strauss, Anusha Gopalan, and Jia
Hui Li for critical feedback on the manuscript and the Life Science Editors for
editing assistance. The plasmid with hSnx33 was a kind gift from Duanqing Pei. Cell
line with GFP-tagged IRSp53 was a kind gift from Orion Weiner. We thank Brian Graziano
for providing protocols, reagents, and key advice to generate CRISPR knockout HL-60
cells. We thank the EMBL flow cytometry core facility, the EMBL advanced light microscopy
facility, the EMBL proteomics facility, and the EMBL genomics core facility for
support and advice. We thank Anusha Gopalan and Martin Bergert for their support
during mechanical measurements by AFM. We thank Estela Sosa Osorio for technical
assistance for the co-immunoprecipitation. We thank the EMBL genome biology computational
support (and specially Charles Girardot and Jelle Scholtalbers) for critical assistance
during RNAseq analysis. We thank Hans Kristian Hannibal‐Bach for his technical assistance
during the lipidomic analysis of plasma membrane isolates. We thank Steffen Burgold
for their support with LLS7 microscope in the ZEISS Microscopy Customer Center Europe.
We acknowledge the financial support of the European Molecular Biology Laboratory
(EMBL) to A.D.-M., Y.S., A.K., and A.E., the EMBL Interdisciplinary Postdocs (EIPOD)
program under Marie Sklodowska-Curie COFUND actions MSCA-COFUND-FP to M.S.B. and
M. S. (grant agreement number: 847543), the BEST program funding by FCT (SFRH/BEST/150300/2019)
to S.D.A. and the Joachim Herz Stiftung Add-on Fellowship for Interdisciplinary
Science to E.S.\r\nOpen Access funding enabled and organized by Projekt DEAL."
article_number: '5644'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Ewa
full_name: Sitarska, Ewa
last_name: Sitarska
- first_name: Silvia Dias
full_name: Almeida, Silvia Dias
last_name: Almeida
- first_name: Marianne Sandvold
full_name: Beckwith, Marianne Sandvold
last_name: Beckwith
- first_name: Julian A
full_name: Stopp, Julian A
id: 489E3F00-F248-11E8-B48F-1D18A9856A87
last_name: Stopp
- first_name: Jakub
full_name: Czuchnowski, Jakub
last_name: Czuchnowski
- first_name: Marc
full_name: Siggel, Marc
last_name: Siggel
- first_name: Rita
full_name: Roessner, Rita
last_name: Roessner
- first_name: Aline
full_name: Tschanz, Aline
last_name: Tschanz
- first_name: Christer
full_name: Ejsing, Christer
last_name: Ejsing
- first_name: Yannick
full_name: Schwab, Yannick
last_name: Schwab
- first_name: Jan
full_name: Kosinski, Jan
last_name: Kosinski
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
- first_name: Anna
full_name: Kreshuk, Anna
last_name: Kreshuk
- first_name: Anna
full_name: Erzberger, Anna
last_name: Erzberger
- first_name: Alba
full_name: Diz-Muñoz, Alba
last_name: Diz-Muñoz
citation:
ama: Sitarska E, Almeida SD, Beckwith MS, et al. Sensing their plasma membrane curvature
allows migrating cells to circumvent obstacles. Nature Communications.
2023;14. doi:10.1038/s41467-023-41173-1
apa: Sitarska, E., Almeida, S. D., Beckwith, M. S., Stopp, J. A., Czuchnowski, J.,
Siggel, M., … Diz-Muñoz, A. (2023). Sensing their plasma membrane curvature allows
migrating cells to circumvent obstacles. Nature Communications. Springer
Nature. https://doi.org/10.1038/s41467-023-41173-1
chicago: Sitarska, Ewa, Silvia Dias Almeida, Marianne Sandvold Beckwith, Julian
A Stopp, Jakub Czuchnowski, Marc Siggel, Rita Roessner, et al. “Sensing Their
Plasma Membrane Curvature Allows Migrating Cells to Circumvent Obstacles.” Nature
Communications. Springer Nature, 2023. https://doi.org/10.1038/s41467-023-41173-1.
ieee: E. Sitarska et al., “Sensing their plasma membrane curvature allows
migrating cells to circumvent obstacles,” Nature Communications, vol. 14.
Springer Nature, 2023.
ista: Sitarska E, Almeida SD, Beckwith MS, Stopp JA, Czuchnowski J, Siggel M, Roessner
R, Tschanz A, Ejsing C, Schwab Y, Kosinski J, Sixt MK, Kreshuk A, Erzberger A,
Diz-Muñoz A. 2023. Sensing their plasma membrane curvature allows migrating cells
to circumvent obstacles. Nature Communications. 14, 5644.
mla: Sitarska, Ewa, et al. “Sensing Their Plasma Membrane Curvature Allows Migrating
Cells to Circumvent Obstacles.” Nature Communications, vol. 14, 5644, Springer
Nature, 2023, doi:10.1038/s41467-023-41173-1.
short: E. Sitarska, S.D. Almeida, M.S. Beckwith, J.A. Stopp, J. Czuchnowski, M.
Siggel, R. Roessner, A. Tschanz, C. Ejsing, Y. Schwab, J. Kosinski, M.K. Sixt,
A. Kreshuk, A. Erzberger, A. Diz-Muñoz, Nature Communications 14 (2023).
date_created: 2023-09-24T22:01:10Z
date_published: 2023-09-13T00:00:00Z
date_updated: 2023-12-21T14:30:01Z
day: '13'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.1038/s41467-023-41173-1
external_id:
isi:
- '001087583700008'
pmid:
- '37704612'
file:
- access_level: open_access
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date_updated: 2023-09-25T08:22:58Z
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intvolume: ' 14'
isi: 1
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
pmid: 1
publication: Nature Communications
publication_identifier:
eissn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
record:
- id: '14697'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Sensing their plasma membrane curvature allows migrating cells to circumvent
obstacles
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2023'
...
---
_id: '14274'
abstract:
- lang: eng
text: Immune responses rely on the rapid and coordinated migration of leukocytes.
Whereas it is well established that single-cell migration is often guided by gradients
of chemokines and other chemoattractants, it remains poorly understood how these
gradients are generated, maintained, and modulated. By combining experimental
data with theory on leukocyte chemotaxis guided by the G protein–coupled receptor
(GPCR) CCR7, we demonstrate that in addition to its role as the sensory receptor
that steers migration, CCR7 also acts as a generator and a modulator of chemotactic
gradients. Upon exposure to the CCR7 ligand CCL19, dendritic cells (DCs) effectively
internalize the receptor and ligand as part of the canonical GPCR desensitization
response. We show that CCR7 internalization also acts as an effective sink for
the chemoattractant, dynamically shaping the spatiotemporal distribution of the
chemokine. This mechanism drives complex collective migration patterns, enabling
DCs to create or sharpen chemotactic gradients. We further show that these self-generated
gradients can sustain the long-range guidance of DCs, adapt collective migration
patterns to the size and geometry of the environment, and provide a guidance cue
for other comigrating cells. Such a dual role of CCR7 as a GPCR that both senses
and consumes its ligand can thus provide a novel mode of cellular self-organization.
acknowledgement: "We thank I. de Vries and the Scientific Service Units (Life Sciences,
Bioimaging, Nanofabrication, Preclinical and Miba Machine Shop) of the Institute
of Science and Technology Austria for excellent support, as well as all the rotation
students assisting in the laboratory work (B. Zens, H. Schön, and D. Babic).\r\nThis
work was supported by grants from the European Research Council under the European
Union’s Horizon 2020 research to M.S. (grant agreement no. 724373) and to E.H. (grant
agreement no. 851288), and a grant by the Austrian Science Fund (DK Nanocell W1250-B20)
to M.S. J.A. was supported by the Jenny and Antti Wihuri Foundation and Research
Council of Finland's Flagship Programme InFLAMES (decision number: 357910). M.C.U.
was supported by the European Union’s Horizon 2020 research and innovation programme
under the Marie Skłodowska-Curie grant agreement no. 754411."
article_number: adc9584
article_processing_charge: No
article_type: original
author:
- first_name: Jonna H
full_name: Alanko, Jonna H
id: 2CC12E8C-F248-11E8-B48F-1D18A9856A87
last_name: Alanko
orcid: 0000-0002-7698-3061
- first_name: Mehmet C
full_name: Ucar, Mehmet C
id: 50B2A802-6007-11E9-A42B-EB23E6697425
last_name: Ucar
orcid: 0000-0003-0506-4217
- first_name: Nikola
full_name: Canigova, Nikola
id: 3795523E-F248-11E8-B48F-1D18A9856A87
last_name: Canigova
orcid: 0000-0002-8518-5926
- first_name: Julian A
full_name: Stopp, Julian A
id: 489E3F00-F248-11E8-B48F-1D18A9856A87
last_name: Stopp
- first_name: Jan
full_name: Schwarz, Jan
id: 346C1EC6-F248-11E8-B48F-1D18A9856A87
last_name: Schwarz
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Edouard B
full_name: Hannezo, Edouard B
id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
last_name: Hannezo
orcid: 0000-0001-6005-1561
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
citation:
ama: Alanko JH, Ucar MC, Canigova N, et al. CCR7 acts as both a sensor and a sink
for CCL19 to coordinate collective leukocyte migration. Science Immunology.
2023;8(87). doi:10.1126/sciimmunol.adc9584
apa: Alanko, J. H., Ucar, M. C., Canigova, N., Stopp, J. A., Schwarz, J., Merrin,
J., … Sixt, M. K. (2023). CCR7 acts as both a sensor and a sink for CCL19 to coordinate
collective leukocyte migration. Science Immunology. American Association
for the Advancement of Science. https://doi.org/10.1126/sciimmunol.adc9584
chicago: Alanko, Jonna H, Mehmet C Ucar, Nikola Canigova, Julian A Stopp, Jan Schwarz,
Jack Merrin, Edouard B Hannezo, and Michael K Sixt. “CCR7 Acts as Both a Sensor
and a Sink for CCL19 to Coordinate Collective Leukocyte Migration.” Science
Immunology. American Association for the Advancement of Science, 2023. https://doi.org/10.1126/sciimmunol.adc9584.
ieee: J. H. Alanko et al., “CCR7 acts as both a sensor and a sink for CCL19
to coordinate collective leukocyte migration,” Science Immunology, vol.
8, no. 87. American Association for the Advancement of Science, 2023.
ista: Alanko JH, Ucar MC, Canigova N, Stopp JA, Schwarz J, Merrin J, Hannezo EB,
Sixt MK. 2023. CCR7 acts as both a sensor and a sink for CCL19 to coordinate collective
leukocyte migration. Science Immunology. 8(87), adc9584.
mla: Alanko, Jonna H., et al. “CCR7 Acts as Both a Sensor and a Sink for CCL19 to
Coordinate Collective Leukocyte Migration.” Science Immunology, vol. 8,
no. 87, adc9584, American Association for the Advancement of Science, 2023, doi:10.1126/sciimmunol.adc9584.
short: J.H. Alanko, M.C. Ucar, N. Canigova, J.A. Stopp, J. Schwarz, J. Merrin, E.B.
Hannezo, M.K. Sixt, Science Immunology 8 (2023).
date_created: 2023-09-06T08:07:51Z
date_published: 2023-09-01T00:00:00Z
date_updated: 2023-12-21T14:30:01Z
day: '01'
department:
- _id: MiSi
- _id: EdHa
- _id: NanoFab
doi: 10.1126/sciimmunol.adc9584
ec_funded: 1
external_id:
isi:
- '001062110600003'
pmid:
- '37656776'
intvolume: ' 8'
isi: 1
issue: '87'
keyword:
- General Medicine
- Immunology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1126/sciimmunol.adc9584
month: '09'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '724373'
name: Cellular navigation along spatial gradients
- _id: 05943252-7A3F-11EA-A408-12923DDC885E
call_identifier: H2020
grant_number: '851288'
name: Design Principles of Branching Morphogenesis
- _id: 265E2996-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: W01250-B20
name: Nano-Analytics of Cellular Systems
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Science Immunology
publication_identifier:
issn:
- 2470-9468
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
related_material:
record:
- id: '14279'
relation: research_data
status: public
- id: '14697'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: CCR7 acts as both a sensor and a sink for CCL19 to coordinate collective leukocyte
migration
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2023'
...
---
_id: '14697'
acknowledged_ssus:
- _id: LifeSc
- _id: Bio
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Julian A
full_name: Stopp, Julian A
id: 489E3F00-F248-11E8-B48F-1D18A9856A87
last_name: Stopp
citation:
ama: 'Stopp JA. Neutrophils on the hunt: Migratory strategies employed by neutrophils
to fulfill their effector function. 2023. doi:10.15479/at:ista:14697'
apa: 'Stopp, J. A. (2023). Neutrophils on the hunt: Migratory strategies employed
by neutrophils to fulfill their effector function. Institute of Science and
Technology Austria. https://doi.org/10.15479/at:ista:14697'
chicago: 'Stopp, Julian A. “Neutrophils on the Hunt: Migratory Strategies Employed
by Neutrophils to Fulfill Their Effector Function.” Institute of Science and Technology
Austria, 2023. https://doi.org/10.15479/at:ista:14697.'
ieee: 'J. A. Stopp, “Neutrophils on the hunt: Migratory strategies employed by neutrophils
to fulfill their effector function,” Institute of Science and Technology Austria,
2023.'
ista: 'Stopp JA. 2023. Neutrophils on the hunt: Migratory strategies employed by
neutrophils to fulfill their effector function. Institute of Science and Technology
Austria.'
mla: 'Stopp, Julian A. Neutrophils on the Hunt: Migratory Strategies Employed
by Neutrophils to Fulfill Their Effector Function. Institute of Science and
Technology Austria, 2023, doi:10.15479/at:ista:14697.'
short: 'J.A. Stopp, Neutrophils on the Hunt: Migratory Strategies Employed by Neutrophils
to Fulfill Their Effector Function, Institute of Science and Technology Austria,
2023.'
date_created: 2023-12-18T19:14:28Z
date_published: 2023-12-20T00:00:00Z
date_updated: 2023-12-21T14:30:02Z
day: '20'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: GradSch
- _id: MiSi
doi: 10.15479/at:ista:14697
ec_funded: 1
file:
- access_level: closed
checksum: 457927165d5d556305d3086f6b83e5c7
content_type: application/pdf
creator: jstopp
date_created: 2023-12-20T09:35:34Z
date_updated: 2023-12-20T09:35:34Z
embargo: 2024-12-20
embargo_to: open_access
file_id: '14699'
file_name: Thesis.pdf
file_size: 51585778
relation: main_file
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checksum: e8d26449ac461f5e8478a62c9507506f
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: jstopp
date_created: 2023-12-20T09:35:35Z
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file_id: '14700'
file_name: Thesis.docx
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relation: source_file
file_date_updated: 2023-12-20T10:41:42Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa_version: Published Version
page: '226'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication_identifier:
isbn:
- 978-3-99078-038-1
issn:
- 2663 - 337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '6328'
relation: part_of_dissertation
status: public
- id: '7885'
relation: part_of_dissertation
status: public
- id: '12272'
relation: part_of_dissertation
status: public
- id: '14274'
relation: part_of_dissertation
status: public
- id: '14360'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
title: 'Neutrophils on the hunt: Migratory strategies employed by neutrophils to fulfill
their effector function'
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...
---
_id: '14848'
abstract:
- lang: eng
text: Regulating protein states is considered the core function of chaperones. However,
despite their importance to all major cellular processes, the conformational changes
that chaperones impart on polypeptide chains are difficult to study directly due
to their heterogeneous, dynamic, and multi-step nature. Here, we review recent
advances towards this aim using single-molecule manipulation methods, which are
rapidly revealing new mechanisms of conformational control and helping to define
a different perspective on the chaperone function.
alternative_title:
- New Developments in NMR
article_processing_charge: No
author:
- first_name: F.
full_name: Wruck, F.
last_name: Wruck
- first_name: Mario
full_name: Avellaneda Sarrió, Mario
id: DC4BA84C-56E6-11EA-AD5D-348C3DDC885E
last_name: Avellaneda Sarrió
orcid: 0000-0001-6406-524X
- first_name: M. M.
full_name: Naqvi, M. M.
last_name: Naqvi
- first_name: E. J.
full_name: Koers, E. J.
last_name: Koers
- first_name: K.
full_name: Till, K.
last_name: Till
- first_name: L.
full_name: Gross, L.
last_name: Gross
- first_name: F.
full_name: Moayed, F.
last_name: Moayed
- first_name: A.
full_name: Roland, A.
last_name: Roland
- first_name: L. W. H. J.
full_name: Heling, L. W. H. J.
last_name: Heling
- first_name: A.
full_name: Mashaghi, A.
last_name: Mashaghi
- first_name: S. J.
full_name: Tans, S. J.
last_name: Tans
citation:
ama: 'Wruck F, Avellaneda Sarrió M, Naqvi MM, et al. Probing Single Chaperone Substrates.
In: Hiller S, Liu M, He L, eds. Biophysics of Molecular Chaperones. Vol
29. Royal Society of Chemistry; 2023:278-318. doi:10.1039/bk9781839165986-00278'
apa: Wruck, F., Avellaneda Sarrió, M., Naqvi, M. M., Koers, E. J., Till, K., Gross,
L., … Tans, S. J. (2023). Probing Single Chaperone Substrates. In S. Hiller, M.
Liu, & L. He (Eds.), Biophysics of Molecular Chaperones (Vol. 29, pp.
278–318). Royal Society of Chemistry. https://doi.org/10.1039/bk9781839165986-00278
chicago: Wruck, F., Mario Avellaneda Sarrió, M. M. Naqvi, E. J. Koers, K. Till,
L. Gross, F. Moayed, et al. “Probing Single Chaperone Substrates.” In Biophysics
of Molecular Chaperones, edited by Sebastian Hiller, Maili Liu, and Lichun
He, 29:278–318. Royal Society of Chemistry, 2023. https://doi.org/10.1039/bk9781839165986-00278.
ieee: F. Wruck et al., “Probing Single Chaperone Substrates,” in Biophysics
of Molecular Chaperones, vol. 29, S. Hiller, M. Liu, and L. He, Eds. Royal
Society of Chemistry, 2023, pp. 278–318.
ista: 'Wruck F, Avellaneda Sarrió M, Naqvi MM, Koers EJ, Till K, Gross L, Moayed
F, Roland A, Heling LWHJ, Mashaghi A, Tans SJ. 2023.Probing Single Chaperone Substrates.
In: Biophysics of Molecular Chaperones. New Developments in NMR, vol. 29, 278–318.'
mla: Wruck, F., et al. “Probing Single Chaperone Substrates.” Biophysics of Molecular
Chaperones, edited by Sebastian Hiller et al., vol. 29, Royal Society of Chemistry,
2023, pp. 278–318, doi:10.1039/bk9781839165986-00278.
short: F. Wruck, M. Avellaneda Sarrió, M.M. Naqvi, E.J. Koers, K. Till, L. Gross,
F. Moayed, A. Roland, L.W.H.J. Heling, A. Mashaghi, S.J. Tans, in:, S. Hiller,
M. Liu, L. He (Eds.), Biophysics of Molecular Chaperones, Royal Society of Chemistry,
2023, pp. 278–318.
date_created: 2024-01-22T08:07:02Z
date_published: 2023-11-01T00:00:00Z
date_updated: 2024-01-23T12:01:53Z
day: '01'
department:
- _id: MiSi
doi: 10.1039/bk9781839165986-00278
editor:
- first_name: Sebastian
full_name: Hiller, Sebastian
last_name: Hiller
- first_name: Maili
full_name: Liu, Maili
last_name: Liu
- first_name: Lichun
full_name: He, Lichun
last_name: He
intvolume: ' 29'
language:
- iso: eng
month: '11'
oa_version: None
page: 278-318
publication: Biophysics of Molecular Chaperones
publication_identifier:
eisbn:
- '9781839165993'
isbn:
- '9781839162824'
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
status: public
title: Probing Single Chaperone Substrates
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 29
year: '2023'
...
---
_id: '9794'
abstract:
- lang: eng
text: 'Lymph nodes (LNs) comprise two main structural elements: fibroblastic reticular
cells that form dedicated niches for immune cell interaction and capsular fibroblasts
that build a shell around the organ. Immunological challenge causes LNs to increase
more than tenfold in size within a few days. Here, we characterized the biomechanics
of LN swelling on the cellular and organ scale. We identified lymphocyte trapping
by influx and proliferation as drivers of an outward pressure force, causing fibroblastic
reticular cells of the T-zone (TRCs) and their associated conduits to stretch.
After an initial phase of relaxation, TRCs sensed the resulting strain through
cell matrix adhesions, which coordinated local growth and remodeling of the stromal
network. While the expanded TRC network readopted its typical configuration, a
massive fibrotic reaction of the organ capsule set in and countered further organ
expansion. Thus, different fibroblast populations mechanically control LN swelling
in a multitier fashion.'
acknowledged_ssus:
- _id: Bio
- _id: EM-Fac
- _id: PreCl
- _id: LifeSc
acknowledgement: This research was supported by the Scientific Service Units of IST
Austria through resources provided by the Imaging and Optics, Electron Microscopy,
Preclinical and Life Science Facilities. We thank C. Moussion for providing anti-PNAd
antibody and D. Critchley for Talin1-floxed mice, and E. Papusheva for providing
a custom 3D channel alignment script. This work was supported by a European Research
Council grant ERC-CoG-72437 to M.S. M.H. was supported by Czech Sciencundation GACR
20-24603Y and Charles University PRIMUS/20/MED/013.
article_processing_charge: No
article_type: original
author:
- first_name: Frank P
full_name: Assen, Frank P
id: 3A8E7F24-F248-11E8-B48F-1D18A9856A87
last_name: Assen
orcid: 0000-0003-3470-6119
- first_name: Jun
full_name: Abe, Jun
last_name: Abe
- first_name: Miroslav
full_name: Hons, Miroslav
id: 4167FE56-F248-11E8-B48F-1D18A9856A87
last_name: Hons
orcid: 0000-0002-6625-3348
- first_name: Robert
full_name: Hauschild, Robert
id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
last_name: Hauschild
orcid: 0000-0001-9843-3522
- first_name: Shayan
full_name: Shamipour, Shayan
id: 40B34FE2-F248-11E8-B48F-1D18A9856A87
last_name: Shamipour
- first_name: Walter
full_name: Kaufmann, Walter
id: 3F99E422-F248-11E8-B48F-1D18A9856A87
last_name: Kaufmann
orcid: 0000-0001-9735-5315
- first_name: Tommaso
full_name: Costanzo, Tommaso
id: D93824F4-D9BA-11E9-BB12-F207E6697425
last_name: Costanzo
orcid: 0000-0001-9732-3815
- first_name: Gabriel
full_name: Krens, Gabriel
id: 2B819732-F248-11E8-B48F-1D18A9856A87
last_name: Krens
orcid: 0000-0003-4761-5996
- first_name: Markus
full_name: Brown, Markus
id: 3DAB9AFC-F248-11E8-B48F-1D18A9856A87
last_name: Brown
- first_name: Burkhard
full_name: Ludewig, Burkhard
last_name: Ludewig
- first_name: Simon
full_name: Hippenmeyer, Simon
id: 37B36620-F248-11E8-B48F-1D18A9856A87
last_name: Hippenmeyer
orcid: 0000-0003-2279-1061
- first_name: Carl-Philipp J
full_name: Heisenberg, Carl-Philipp J
id: 39427864-F248-11E8-B48F-1D18A9856A87
last_name: Heisenberg
orcid: 0000-0002-0912-4566
- first_name: Wolfgang
full_name: Weninger, Wolfgang
last_name: Weninger
- first_name: Edouard B
full_name: Hannezo, Edouard B
id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
last_name: Hannezo
orcid: 0000-0001-6005-1561
- first_name: Sanjiv A.
full_name: Luther, Sanjiv A.
last_name: Luther
- first_name: Jens V.
full_name: Stein, Jens V.
last_name: Stein
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-4561-241X
citation:
ama: Assen FP, Abe J, Hons M, et al. Multitier mechanics control stromal adaptations
in swelling lymph nodes. Nature Immunology. 2022;23:1246-1255. doi:10.1038/s41590-022-01257-4
apa: Assen, F. P., Abe, J., Hons, M., Hauschild, R., Shamipour, S., Kaufmann, W.,
… Sixt, M. K. (2022). Multitier mechanics control stromal adaptations in swelling
lymph nodes. Nature Immunology. Springer Nature. https://doi.org/10.1038/s41590-022-01257-4
chicago: Assen, Frank P, Jun Abe, Miroslav Hons, Robert Hauschild, Shayan Shamipour,
Walter Kaufmann, Tommaso Costanzo, et al. “Multitier Mechanics Control Stromal
Adaptations in Swelling Lymph Nodes.” Nature Immunology. Springer Nature,
2022. https://doi.org/10.1038/s41590-022-01257-4.
ieee: F. P. Assen et al., “Multitier mechanics control stromal adaptations
in swelling lymph nodes,” Nature Immunology, vol. 23. Springer Nature,
pp. 1246–1255, 2022.
ista: Assen FP, Abe J, Hons M, Hauschild R, Shamipour S, Kaufmann W, Costanzo T,
Krens G, Brown M, Ludewig B, Hippenmeyer S, Heisenberg C-PJ, Weninger W, Hannezo
EB, Luther SA, Stein JV, Sixt MK. 2022. Multitier mechanics control stromal adaptations
in swelling lymph nodes. Nature Immunology. 23, 1246–1255.
mla: Assen, Frank P., et al. “Multitier Mechanics Control Stromal Adaptations in
Swelling Lymph Nodes.” Nature Immunology, vol. 23, Springer Nature, 2022,
pp. 1246–55, doi:10.1038/s41590-022-01257-4.
short: F.P. Assen, J. Abe, M. Hons, R. Hauschild, S. Shamipour, W. Kaufmann, T.
Costanzo, G. Krens, M. Brown, B. Ludewig, S. Hippenmeyer, C.-P.J. Heisenberg,
W. Weninger, E.B. Hannezo, S.A. Luther, J.V. Stein, M.K. Sixt, Nature Immunology
23 (2022) 1246–1255.
date_created: 2021-08-06T09:09:11Z
date_published: 2022-07-11T00:00:00Z
date_updated: 2023-08-02T06:53:07Z
day: '11'
ddc:
- '570'
department:
- _id: SiHi
- _id: CaHe
- _id: EdHa
- _id: EM-Fac
- _id: Bio
- _id: MiSi
doi: 10.1038/s41590-022-01257-4
ec_funded: 1
external_id:
isi:
- '000822975900002'
file:
- access_level: open_access
checksum: 628e7b49809f22c75b428842efe70c68
content_type: application/pdf
creator: dernst
date_created: 2022-07-25T07:11:32Z
date_updated: 2022-07-25T07:11:32Z
file_id: '11642'
file_name: 2022_NatureImmunology_Assen.pdf
file_size: 11475325
relation: main_file
success: 1
file_date_updated: 2022-07-25T07:11:32Z
has_accepted_license: '1'
intvolume: ' 23'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 1246-1255
project:
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '724373'
name: Cellular navigation along spatial gradients
publication: Nature Immunology
publication_identifier:
eissn:
- 1529-2916
issn:
- 1529-2908
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multitier mechanics control stromal adaptations in swelling lymph nodes
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 23
year: '2022'
...
---
_id: '11588'
abstract:
- lang: eng
text: Visualizing cell behavior and effector function on a single cell level has
been crucial for understanding key aspects of mammalian biology. Due to their
small size, large number and rapid recruitment into thrombi, there is a lack of
data on fate and behavior of individual platelets in thrombosis and hemostasis.
Here we report the use of platelet lineage restricted multi-color reporter mouse
strains to delineate platelet function on a single cell level. We show that genetic
labeling allows for single platelet and megakaryocyte (MK) tracking and morphological
analysis in vivo and in vitro, while not affecting lineage functions. Using Cre-driven
Confetti expression, we provide insights into temporal gene expression patterns
as well as spatial clustering of MK in the bone marrow. In the vasculature, shape
analysis of activated platelets recruited to thrombi identifies ubiquitous filopodia
formation with no evidence of lamellipodia formation. Single cell tracking in
complex thrombi reveals prominent myosin-dependent motility of platelets and highlights
thrombus formation as a highly dynamic process amenable to modification and intervention
of the acto-myosin cytoskeleton. Platelet function assays combining flow cytrometry,
as well as in vivo, ex vivo and in vitro imaging show unaltered platelet functions
of multicolor reporter mice compared to wild-type controls. In conclusion, platelet
lineage multicolor reporter mice prove useful in furthering our understanding
of platelet and MK biology on a single cell level.
acknowledgement: "This study was supported by the Deutsche Forschungsgemeinschaft
(DFG) SFB 914 ( to SM [B02 and Z01]), the DFG SFB 1123 (to SM [B06]), the DFG FOR
2033 (to SM), the German\r\nCenter for Cardiovascular Research (DZHK) (Clinician
Scientist Programme), MHA 1.4VD (to SM), Postdoc Start-up Grant, 81X3600213 (to
FG), 81X3600222 (to LN), the FP7 program\r\n(project 260309, PRESTIGE [to SM]).
This project has received funding from the European Research Council (ERC) under
the European Union’s Horizon 2020 research and innovation programme (grant agreement
No. 83344, ERC-2018-ADG “IMMUNOTHROMBOSIS” [to SM] and the Marie Skłodowska Curie
Individual Fellowship (EU project 747687, LamelliActin [to FG]). "
article_processing_charge: No
article_type: original
author:
- first_name: Leo
full_name: Nicolai, Leo
last_name: Nicolai
- first_name: Rainer
full_name: Kaiser, Rainer
last_name: Kaiser
- first_name: Raphael
full_name: Escaig, Raphael
last_name: Escaig
- first_name: Marie Louise
full_name: Hoffknecht, Marie Louise
last_name: Hoffknecht
- first_name: Afra
full_name: Anjum, Afra
last_name: Anjum
- first_name: Alexander
full_name: Leunig, Alexander
last_name: Leunig
- first_name: Joachim
full_name: Pircher, Joachim
last_name: Pircher
- first_name: Andreas
full_name: Ehrlich, Andreas
last_name: Ehrlich
- first_name: Michael
full_name: Lorenz, Michael
last_name: Lorenz
- first_name: Hellen
full_name: Ishikawa-Ankerhold, Hellen
last_name: Ishikawa-Ankerhold
- first_name: William C.
full_name: Aird, William C.
last_name: Aird
- first_name: Steffen
full_name: Massberg, Steffen
last_name: Massberg
- first_name: Florian R
full_name: Gärtner, Florian R
id: 397A88EE-F248-11E8-B48F-1D18A9856A87
last_name: Gärtner
orcid: 0000-0001-6120-3723
citation:
ama: Nicolai L, Kaiser R, Escaig R, et al. Single platelet and megakaryocyte morpho-dynamics
uncovered by multicolor reporter mouse strains in vitro and in vivo. Haematologica.
2022;107(7):1669-1680. doi:10.3324/haematol.2021.278896
apa: Nicolai, L., Kaiser, R., Escaig, R., Hoffknecht, M. L., Anjum, A., Leunig,
A., … Gärtner, F. R. (2022). Single platelet and megakaryocyte morpho-dynamics
uncovered by multicolor reporter mouse strains in vitro and in vivo. Haematologica.
Ferrata Storti Foundation. https://doi.org/10.3324/haematol.2021.278896
chicago: Nicolai, Leo, Rainer Kaiser, Raphael Escaig, Marie Louise Hoffknecht, Afra
Anjum, Alexander Leunig, Joachim Pircher, et al. “Single Platelet and Megakaryocyte
Morpho-Dynamics Uncovered by Multicolor Reporter Mouse Strains in Vitro and in
Vivo.” Haematologica. Ferrata Storti Foundation, 2022. https://doi.org/10.3324/haematol.2021.278896.
ieee: L. Nicolai et al., “Single platelet and megakaryocyte morpho-dynamics
uncovered by multicolor reporter mouse strains in vitro and in vivo,” Haematologica,
vol. 107, no. 7. Ferrata Storti Foundation, pp. 1669–1680, 2022.
ista: Nicolai L, Kaiser R, Escaig R, Hoffknecht ML, Anjum A, Leunig A, Pircher J,
Ehrlich A, Lorenz M, Ishikawa-Ankerhold H, Aird WC, Massberg S, Gärtner FR. 2022.
Single platelet and megakaryocyte morpho-dynamics uncovered by multicolor reporter
mouse strains in vitro and in vivo. Haematologica. 107(7), 1669–1680.
mla: Nicolai, Leo, et al. “Single Platelet and Megakaryocyte Morpho-Dynamics Uncovered
by Multicolor Reporter Mouse Strains in Vitro and in Vivo.” Haematologica,
vol. 107, no. 7, Ferrata Storti Foundation, 2022, pp. 1669–80, doi:10.3324/haematol.2021.278896.
short: L. Nicolai, R. Kaiser, R. Escaig, M.L. Hoffknecht, A. Anjum, A. Leunig, J.
Pircher, A. Ehrlich, M. Lorenz, H. Ishikawa-Ankerhold, W.C. Aird, S. Massberg,
F.R. Gärtner, Haematologica 107 (2022) 1669–1680.
date_created: 2022-07-17T22:01:54Z
date_published: 2022-07-01T00:00:00Z
date_updated: 2023-08-03T12:01:01Z
day: '01'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.3324/haematol.2021.278896
ec_funded: 1
external_id:
isi:
- '000823746100018'
file:
- access_level: open_access
checksum: 9b47830945f3c30428fe9cfee2dc4a8a
content_type: application/pdf
creator: dernst
date_created: 2022-07-18T07:51:55Z
date_updated: 2022-07-18T07:51:55Z
file_id: '11595'
file_name: 2022_Haematologica_Nicolai.pdf
file_size: 1722094
relation: main_file
success: 1
file_date_updated: 2022-07-18T07:51:55Z
has_accepted_license: '1'
intvolume: ' 107'
isi: 1
issue: '7'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/4.0/
month: '07'
oa: 1
oa_version: Published Version
page: 1669-1680
project:
- _id: 260AA4E2-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '747687'
name: Mechanical Adaptation of Lamellipodial Actin Networks in Migrating Cells
publication: Haematologica
publication_identifier:
eissn:
- 1592-8721
issn:
- 0390-6078
publication_status: published
publisher: Ferrata Storti Foundation
quality_controlled: '1'
scopus_import: '1'
status: public
title: Single platelet and megakaryocyte morpho-dynamics uncovered by multicolor reporter
mouse strains in vitro and in vivo
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
short: CC BY-NC (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 107
year: '2022'
...
---
_id: '11843'
abstract:
- lang: eng
text: A key attribute of persistent or recurring bacterial infections is the ability
of the pathogen to evade the host’s immune response. Many Enterobacteriaceae express
type 1 pili, a pre-adapted virulence trait, to invade host epithelial cells and
establish persistent infections. However, the molecular mechanisms and strategies
by which bacteria actively circumvent the immune response of the host remain poorly
understood. Here, we identified CD14, the major co-receptor for lipopolysaccharide
detection, on mouse dendritic cells (DCs) as a binding partner of FimH, the protein
located at the tip of the type 1 pilus of Escherichia coli. The FimH amino acids
involved in CD14 binding are highly conserved across pathogenic and non-pathogenic
strains. Binding of the pathogenic strain CFT073 to CD14 reduced DC migration
by overactivation of integrins and blunted expression of co-stimulatory molecules
by overactivating the NFAT (nuclear factor of activated T-cells) pathway, both
rate-limiting factors of T cell activation. This response was binary at the single-cell
level, but averaged in larger populations exposed to both piliated and non-piliated
pathogens, presumably via the exchange of immunomodulatory cytokines. While defining
an active molecular mechanism of immune evasion by pathogens, the interaction
between FimH and CD14 represents a potential target to interfere with persistent
and recurrent infections, such as urinary tract infections or Crohn’s disease.
acknowledged_ssus:
- _id: Bio
- _id: PreCl
- _id: EM-Fac
acknowledgement: We thank Ulrich Dobrindt for providing UPEC strains CFT073, UTI89,
and 536, Frank Assen, Vlad Gavra, Maximilian Götz, Bor Kavčič, Jonna Alanko, and
Eva Kiermaier for help with experiments and Robert Hauschild, Julian Stopp, and
Saren Tasciyan for help with data analysis. We thank the IST Austria Scientific
Service Units, especially the Bioimaging facility, the Preclinical facility and
the Electron microscopy facility for technical support, Jakob Wallner and all members
of the Guet and Sixt lab for fruitful discussions and Daria Siekhaus for critically
reading the manuscript. This work was supported by grants from the Austrian Research
Promotion Agency (FEMtech 868984) to IG, the European Research Council (CoG 724373),
and the Austrian Science Fund (FWF P29911) to MS.
article_number: e78995
article_processing_charge: Yes
article_type: original
author:
- first_name: Kathrin
full_name: Tomasek, Kathrin
id: 3AEC8556-F248-11E8-B48F-1D18A9856A87
last_name: Tomasek
- first_name: Alexander F
full_name: Leithner, Alexander F
id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
last_name: Leithner
- first_name: Ivana
full_name: Glatzová, Ivana
id: 727b3c7d-4939-11ec-89b3-b9b0750ab74d
last_name: Glatzová
- first_name: Michael S.
full_name: Lukesch, Michael S.
last_name: Lukesch
- first_name: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
citation:
ama: Tomasek K, Leithner AF, Glatzová I, Lukesch MS, Guet CC, Sixt MK. Type 1 piliated
uropathogenic Escherichia coli hijack the host immune response by binding to CD14.
eLife. 2022;11. doi:10.7554/eLife.78995
apa: Tomasek, K., Leithner, A. F., Glatzová, I., Lukesch, M. S., Guet, C. C., &
Sixt, M. K. (2022). Type 1 piliated uropathogenic Escherichia coli hijack the
host immune response by binding to CD14. ELife. eLife Sciences Publications.
https://doi.org/10.7554/eLife.78995
chicago: Tomasek, Kathrin, Alexander F Leithner, Ivana Glatzová, Michael S. Lukesch,
Calin C Guet, and Michael K Sixt. “Type 1 Piliated Uropathogenic Escherichia Coli
Hijack the Host Immune Response by Binding to CD14.” ELife. eLife Sciences
Publications, 2022. https://doi.org/10.7554/eLife.78995.
ieee: K. Tomasek, A. F. Leithner, I. Glatzová, M. S. Lukesch, C. C. Guet, and M.
K. Sixt, “Type 1 piliated uropathogenic Escherichia coli hijack the host immune
response by binding to CD14,” eLife, vol. 11. eLife Sciences Publications,
2022.
ista: Tomasek K, Leithner AF, Glatzová I, Lukesch MS, Guet CC, Sixt MK. 2022. Type
1 piliated uropathogenic Escherichia coli hijack the host immune response by binding
to CD14. eLife. 11, e78995.
mla: Tomasek, Kathrin, et al. “Type 1 Piliated Uropathogenic Escherichia Coli Hijack
the Host Immune Response by Binding to CD14.” ELife, vol. 11, e78995, eLife
Sciences Publications, 2022, doi:10.7554/eLife.78995.
short: K. Tomasek, A.F. Leithner, I. Glatzová, M.S. Lukesch, C.C. Guet, M.K. Sixt,
ELife 11 (2022).
date_created: 2022-08-14T22:01:46Z
date_published: 2022-07-26T00:00:00Z
date_updated: 2023-08-03T12:54:21Z
day: '26'
ddc:
- '570'
department:
- _id: MiSi
- _id: CaGu
doi: 10.7554/eLife.78995
ec_funded: 1
external_id:
isi:
- '000838410200001'
file:
- access_level: open_access
checksum: 002a3c7c7ea5caa9af9cfbea308f6ea4
content_type: application/pdf
creator: cchlebak
date_created: 2022-08-16T08:57:37Z
date_updated: 2022-08-16T08:57:37Z
file_id: '11861'
file_name: 2022_eLife_Tomasek.pdf
file_size: 2057577
relation: main_file
success: 1
file_date_updated: 2022-08-16T08:57:37Z
has_accepted_license: '1'
intvolume: ' 11'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '724373'
name: Cellular navigation along spatial gradients
- _id: 26018E70-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P29911
name: Mechanical adaptation of lamellipodial actin
publication: eLife
publication_identifier:
eissn:
- 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
related_material:
record:
- id: '10316'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Type 1 piliated uropathogenic Escherichia coli hijack the host immune response
by binding to CD14
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2022'
...
---
_id: '12085'
abstract:
- lang: eng
text: Molecular catch bonds are ubiquitous in biology and essential for processes
like leucocyte extravasion1 and cellular mechanosensing2. Unlike normal (slip)
bonds, catch bonds strengthen under tension. The current paradigm is that this
feature provides ‘strength on demand3’, thus enabling cells to increase rigidity
under stress1,4,5,6. However, catch bonds are often weaker than slip bonds because
they have cryptic binding sites that are usually buried7,8. Here we show that
catch bonds render reconstituted cytoskeletal actin networks stronger than slip
bonds, even though the individual bonds are weaker. Simulations show that slip
bonds remain trapped in stress-free areas, whereas weak binding allows catch bonds
to mitigate crack initiation by moving to high-tension areas. This ‘dissociation
on demand’ explains how cells combine mechanical strength with the adaptability
required for shape change, and is relevant to diseases where catch bonding is
compromised7,9, including focal segmental glomerulosclerosis10 caused by the α-actinin-4
mutant studied here. We surmise that catch bonds are the key to create life-like
materials.
acknowledgement: 'We thank M. van Hecke and C. Alkemade for critical reading of the
manuscript. We thank P. R. ten Wolde, K. Storm, W. Ellenbroek, C. Broedersz, D.
Brueckner and M. Berger for fruitful discussions. We thank W. Brieher and V. Tang
from the University of Illinois for the kind gift of purified α-actinin-4 (WT and
the K255E point mutant) and their plasmids; M. Kuit-Vinkenoog and J. den Haan for
actin and further purification of α-actinin-4; A. Goutou and I. Isturiz-Petitjean
for co-sedimentation measurements and V. Sunderlíková for the design, mutagenesis,
cloning and purifying of the α-actinin-4 constructs used in the single-molecule
experiments. We gratefully acknowledge financial support from the following sources:
research program of the Netherlands Organization for Scientific Research (NWO) (S.J.T.,
A.R. and M.J.A.); ERC Starting Grant (335672-MINICELL) (G.H.K. and Y.M.). ‘BaSyC—Building
a Synthetic Cell’ Gravitation grant (024.003.019) of the Netherlands Ministry of
Education, Culture and Science (OCW) and the Netherlands Organisation for Scientific
Research (G.H.K. and L.B.); and support from the National Institutes of Health (1R01GM126256)
(T.K. and W.J.).'
article_processing_charge: No
article_type: original
author:
- first_name: Yuval
full_name: Mulla, Yuval
last_name: Mulla
- first_name: Mario
full_name: Avellaneda Sarrió, Mario
id: DC4BA84C-56E6-11EA-AD5D-348C3DDC885E
last_name: Avellaneda Sarrió
orcid: 0000-0001-6406-524X
- first_name: Antoine
full_name: Roland, Antoine
last_name: Roland
- first_name: Lucia
full_name: Baldauf, Lucia
last_name: Baldauf
- first_name: Wonyeong
full_name: Jung, Wonyeong
last_name: Jung
- first_name: Taeyoon
full_name: Kim, Taeyoon
last_name: Kim
- first_name: Sander J.
full_name: Tans, Sander J.
last_name: Tans
- first_name: Gijsje H.
full_name: Koenderink, Gijsje H.
last_name: Koenderink
citation:
ama: Mulla Y, Avellaneda Sarrió M, Roland A, et al. Weak catch bonds make strong
networks. Nature Materials. 2022;21(9):1019-1023. doi:10.1038/s41563-022-01288-0
apa: Mulla, Y., Avellaneda Sarrió, M., Roland, A., Baldauf, L., Jung, W., Kim, T.,
… Koenderink, G. H. (2022). Weak catch bonds make strong networks. Nature Materials.
Springer Nature. https://doi.org/10.1038/s41563-022-01288-0
chicago: Mulla, Yuval, Mario Avellaneda Sarrió, Antoine Roland, Lucia Baldauf, Wonyeong
Jung, Taeyoon Kim, Sander J. Tans, and Gijsje H. Koenderink. “Weak Catch Bonds
Make Strong Networks.” Nature Materials. Springer Nature, 2022. https://doi.org/10.1038/s41563-022-01288-0.
ieee: Y. Mulla et al., “Weak catch bonds make strong networks,” Nature
Materials, vol. 21, no. 9. Springer Nature, pp. 1019–1023, 2022.
ista: Mulla Y, Avellaneda Sarrió M, Roland A, Baldauf L, Jung W, Kim T, Tans SJ,
Koenderink GH. 2022. Weak catch bonds make strong networks. Nature Materials.
21(9), 1019–1023.
mla: Mulla, Yuval, et al. “Weak Catch Bonds Make Strong Networks.” Nature Materials,
vol. 21, no. 9, Springer Nature, 2022, pp. 1019–23, doi:10.1038/s41563-022-01288-0.
short: Y. Mulla, M. Avellaneda Sarrió, A. Roland, L. Baldauf, W. Jung, T. Kim, S.J.
Tans, G.H. Koenderink, Nature Materials 21 (2022) 1019–1023.
date_created: 2022-09-11T22:01:57Z
date_published: 2022-09-01T00:00:00Z
date_updated: 2023-08-03T14:08:47Z
day: '01'
department:
- _id: MiSi
doi: 10.1038/s41563-022-01288-0
external_id:
isi:
- '000844592000002'
pmid:
- '36008604'
intvolume: ' 21'
isi: 1
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/2020.07.27.219618
month: '09'
oa: 1
oa_version: Preprint
page: 1019-1023
pmid: 1
publication: Nature Materials
publication_identifier:
eissn:
- 1476-4660
issn:
- 1476-1122
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Weak catch bonds make strong networks
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 21
year: '2022'
...
---
_id: '12119'
abstract:
- lang: eng
text: Intravascular neutrophils and platelets collaborate in maintaining host integrity,
but their interaction can also trigger thrombotic complications. We report here
that cooperation between neutrophil and platelet lineages extends to the earliest
stages of platelet formation by megakaryocytes in the bone marrow. Using intravital
microscopy, we show that neutrophils “plucked” intravascular megakaryocyte extensions,
termed proplatelets, to control platelet production. Following CXCR4-CXCL12-dependent
migration towards perisinusoidal megakaryocytes, plucking neutrophils actively
pulled on proplatelets and triggered myosin light chain and extracellular-signal-regulated
kinase activation through reactive oxygen species. By these mechanisms, neutrophils
accelerate proplatelet growth and facilitate continuous release of platelets in
steady state. Following myocardial infarction, plucking neutrophils drove excessive
release of young, reticulated platelets and boosted the risk of recurrent ischemia.
Ablation of neutrophil plucking normalized thrombopoiesis and reduced recurrent
thrombosis after myocardial infarction and thrombus burden in venous thrombosis.
We establish neutrophil plucking as a target to reduce thromboischemic events.
acknowledgement: "We thank Coung Kieu and Dominik van den Heuvel for excellent technical
assistance. This work was supported by the German Research Foundation (PE2704/2-1,
PE2704/3-1 to T.P., SFB 1123-project B06 to S.M., SFB1525 project A07 to D.S, TRR
332 project A7 to C.S., PO 2247/2-1 to A.P., SFB1116-project B11 to A.P. and B12
to M.K.), LMU Munich’s Institutional\r\nStrategy LMUexcellent within the framework
of the German Excellence Initiative (No. 806 32 006 to T.P.), and by the German
Centre for Cardiovascular Research (DZHK) to T.P. (Postdoc Start-up grant No. 100378833).
This project has received funding from the European Research Council (ERC) under
the European Union’s Horizon 2020 research and innovation program (grant agreement
No. 833440 to S.M.). F.G. received funding from the European Union’s\r\nHorizon
2020 research and innovation program under the Marie Sk1odowska-Curie grant agreement
no. 747687. A.H. was funded by RTI2018-095497-B-I00 from Ministerio de Ciencia e
Innovacio´ n (MICINN), HR17_00527 from Fundacion La Caixa, and Transatlantic Network
of Excellence (TNE-18CVD04) from the Leducq Foundation. The CNIC is supported by
the MICINN and the Pro CNIC Foundation and is a Severo Ochoa Center of Excellence
(CEX2020-001041-S). A.P. was supported by the Forschungskommission of the Medical
Faculty of the Heinrich-Heine-Universität Düsseldorf (No. 18-2019 to A.P.). C.G.
was supported by the Helmholtz Alliance ‘Aging and Metabolic Programming, AMPro,’
by the German Federal\r\nMinistry of Education and Research to the German Center
for Diabetes Research (DZD), and by the Bavarian State Ministry of Health and Care
through the research project DigiMed Bayern."
article_processing_charge: No
article_type: original
author:
- first_name: Tobias
full_name: Petzold, Tobias
last_name: Petzold
- first_name: Zhe
full_name: Zhang, Zhe
last_name: Zhang
- first_name: Iván
full_name: Ballesteros, Iván
last_name: Ballesteros
- first_name: Inas
full_name: Saleh, Inas
last_name: Saleh
- first_name: Amin
full_name: Polzin, Amin
last_name: Polzin
- first_name: Manuela
full_name: Thienel, Manuela
last_name: Thienel
- first_name: Lulu
full_name: Liu, Lulu
last_name: Liu
- first_name: Qurrat
full_name: Ul Ain, Qurrat
last_name: Ul Ain
- first_name: Vincent
full_name: Ehreiser, Vincent
last_name: Ehreiser
- first_name: Christian
full_name: Weber, Christian
last_name: Weber
- first_name: Badr
full_name: Kilani, Badr
last_name: Kilani
- first_name: Pontus
full_name: Mertsch, Pontus
last_name: Mertsch
- first_name: Jeremias
full_name: Götschke, Jeremias
last_name: Götschke
- first_name: Sophie
full_name: Cremer, Sophie
last_name: Cremer
- first_name: Wenwen
full_name: Fu, Wenwen
last_name: Fu
- first_name: Michael
full_name: Lorenz, Michael
last_name: Lorenz
- first_name: Hellen
full_name: Ishikawa-Ankerhold, Hellen
last_name: Ishikawa-Ankerhold
- first_name: Elisabeth
full_name: Raatz, Elisabeth
last_name: Raatz
- first_name: Shaza
full_name: El-Nemr, Shaza
last_name: El-Nemr
- first_name: Agnes
full_name: Görlach, Agnes
last_name: Görlach
- first_name: Esther
full_name: Marhuenda, Esther
last_name: Marhuenda
- first_name: Konstantin
full_name: Stark, Konstantin
last_name: Stark
- first_name: Joachim
full_name: Pircher, Joachim
last_name: Pircher
- first_name: David
full_name: Stegner, David
last_name: Stegner
- first_name: Christian
full_name: Gieger, Christian
last_name: Gieger
- first_name: Marc
full_name: Schmidt-Supprian, Marc
last_name: Schmidt-Supprian
- first_name: Florian R
full_name: Gärtner, Florian R
id: 397A88EE-F248-11E8-B48F-1D18A9856A87
last_name: Gärtner
orcid: 0000-0001-6120-3723
- first_name: Isaac
full_name: Almendros, Isaac
last_name: Almendros
- first_name: Malte
full_name: Kelm, Malte
last_name: Kelm
- first_name: Christian
full_name: Schulz, Christian
last_name: Schulz
- first_name: Andrés
full_name: Hidalgo, Andrés
last_name: Hidalgo
- first_name: Steffen
full_name: Massberg, Steffen
last_name: Massberg
citation:
ama: Petzold T, Zhang Z, Ballesteros I, et al. Neutrophil “plucking” on megakaryocytes
drives platelet production and boosts cardiovascular disease. Immunity.
2022;55(12):2285-2299.e7. doi:10.1016/j.immuni.2022.10.001
apa: Petzold, T., Zhang, Z., Ballesteros, I., Saleh, I., Polzin, A., Thienel, M.,
… Massberg, S. (2022). Neutrophil “plucking” on megakaryocytes drives platelet
production and boosts cardiovascular disease. Immunity. Elsevier. https://doi.org/10.1016/j.immuni.2022.10.001
chicago: Petzold, Tobias, Zhe Zhang, Iván Ballesteros, Inas Saleh, Amin Polzin,
Manuela Thienel, Lulu Liu, et al. “Neutrophil ‘Plucking’ on Megakaryocytes Drives
Platelet Production and Boosts Cardiovascular Disease.” Immunity. Elsevier,
2022. https://doi.org/10.1016/j.immuni.2022.10.001.
ieee: T. Petzold et al., “Neutrophil ‘plucking’ on megakaryocytes drives
platelet production and boosts cardiovascular disease,” Immunity, vol.
55, no. 12. Elsevier, p. 2285–2299.e7, 2022.
ista: Petzold T, Zhang Z, Ballesteros I, Saleh I, Polzin A, Thienel M, Liu L, Ul
Ain Q, Ehreiser V, Weber C, Kilani B, Mertsch P, Götschke J, Cremer S, Fu W, Lorenz
M, Ishikawa-Ankerhold H, Raatz E, El-Nemr S, Görlach A, Marhuenda E, Stark K,
Pircher J, Stegner D, Gieger C, Schmidt-Supprian M, Gärtner FR, Almendros I, Kelm
M, Schulz C, Hidalgo A, Massberg S. 2022. Neutrophil “plucking” on megakaryocytes
drives platelet production and boosts cardiovascular disease. Immunity. 55(12),
2285–2299.e7.
mla: Petzold, Tobias, et al. “Neutrophil ‘Plucking’ on Megakaryocytes Drives Platelet
Production and Boosts Cardiovascular Disease.” Immunity, vol. 55, no. 12,
Elsevier, 2022, p. 2285–2299.e7, doi:10.1016/j.immuni.2022.10.001.
short: T. Petzold, Z. Zhang, I. Ballesteros, I. Saleh, A. Polzin, M. Thienel, L.
Liu, Q. Ul Ain, V. Ehreiser, C. Weber, B. Kilani, P. Mertsch, J. Götschke, S.
Cremer, W. Fu, M. Lorenz, H. Ishikawa-Ankerhold, E. Raatz, S. El-Nemr, A. Görlach,
E. Marhuenda, K. Stark, J. Pircher, D. Stegner, C. Gieger, M. Schmidt-Supprian,
F.R. Gärtner, I. Almendros, M. Kelm, C. Schulz, A. Hidalgo, S. Massberg, Immunity
55 (2022) 2285–2299.e7.
date_created: 2023-01-12T11:56:54Z
date_published: 2022-12-13T00:00:00Z
date_updated: 2023-08-03T14:21:51Z
day: '13'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.1016/j.immuni.2022.10.001
ec_funded: 1
external_id:
isi:
- '000922019600003'
pmid:
- '36272416'
file:
- access_level: open_access
checksum: 073267a9c0ad9f85a650053bc7b23777
content_type: application/pdf
creator: dernst
date_created: 2023-01-23T10:18:48Z
date_updated: 2023-01-23T10:18:48Z
file_id: '12341'
file_name: 2022_Immunity_Petzold.pdf
file_size: 5299475
relation: main_file
success: 1
file_date_updated: 2023-01-23T10:18:48Z
has_accepted_license: '1'
intvolume: ' 55'
isi: 1
issue: '12'
keyword:
- Infectious Diseases
- Immunology
- Immunology and Allergy
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: 2285-2299.e7
pmid: 1
project:
- _id: 260AA4E2-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '747687'
name: Mechanical Adaptation of Lamellipodial Actin Networks in Migrating Cells
publication: Immunity
publication_identifier:
issn:
- 1074-7613
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Neutrophil “plucking” on megakaryocytes drives platelet production and boosts
cardiovascular disease
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 55
year: '2022'
...
---
_id: '12133'
abstract:
- lang: eng
text: Social distancing is an effective way to prevent the spread of disease in
societies, whereas infection elimination is a key element of organismal immunity.
Here, we discuss how the study of social insects such as ants — which form a superorganism
of unconditionally cooperative individuals and thus represent a level of organization
that is intermediate between a classical society of individuals and an organism
of cells — can help to determine common principles of disease defence across levels
of organization.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Sylvia
full_name: Cremer, Sylvia
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
citation:
ama: Cremer S, Sixt MK. Principles of disease defence in organisms, superorganisms
and societies. Nature Reviews Immunology. 2022;22(12):713-714. doi:10.1038/s41577-022-00797-y
apa: Cremer, S., & Sixt, M. K. (2022). Principles of disease defence in organisms,
superorganisms and societies. Nature Reviews Immunology. Springer Nature.
https://doi.org/10.1038/s41577-022-00797-y
chicago: Cremer, Sylvia, and Michael K Sixt. “Principles of Disease Defence in Organisms,
Superorganisms and Societies.” Nature Reviews Immunology. Springer Nature,
2022. https://doi.org/10.1038/s41577-022-00797-y.
ieee: S. Cremer and M. K. Sixt, “Principles of disease defence in organisms, superorganisms
and societies,” Nature Reviews Immunology, vol. 22, no. 12. Springer Nature,
pp. 713–714, 2022.
ista: Cremer S, Sixt MK. 2022. Principles of disease defence in organisms, superorganisms
and societies. Nature Reviews Immunology. 22(12), 713–714.
mla: Cremer, Sylvia, and Michael K. Sixt. “Principles of Disease Defence in Organisms,
Superorganisms and Societies.” Nature Reviews Immunology, vol. 22, no.
12, Springer Nature, 2022, pp. 713–14, doi:10.1038/s41577-022-00797-y.
short: S. Cremer, M.K. Sixt, Nature Reviews Immunology 22 (2022) 713–714.
date_created: 2023-01-12T12:03:14Z
date_published: 2022-12-01T00:00:00Z
date_updated: 2023-08-04T08:53:32Z
day: '01'
department:
- _id: SyCr
- _id: MiSi
doi: 10.1038/s41577-022-00797-y
external_id:
isi:
- '000871836300001'
pmid:
- '36284178'
intvolume: ' 22'
isi: 1
issue: '12'
keyword:
- Energy Engineering and Power Technology
- Fuel Technology
language:
- iso: eng
month: '12'
oa_version: None
page: 713-714
pmid: 1
publication: Nature Reviews Immunology
publication_identifier:
eissn:
- 1474-1741
issn:
- 1474-1733
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Principles of disease defence in organisms, superorganisms and societies
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 22
year: '2022'
...
---
_id: '12272'
abstract:
- lang: eng
text: Reading, interpreting and crawling along gradients of chemotactic cues is
one of the most complex questions in cell biology. In this issue, Georgantzoglou
et al. (2022. J. Cell. Biol.https://doi.org/10.1083/jcb.202103207) use in vivo
models to map the temporal sequence of how neutrophils respond to an acutely arising
gradient of chemoattractant.
article_number: e202206127
article_processing_charge: No
article_type: original
author:
- first_name: Julian A
full_name: Stopp, Julian A
id: 489E3F00-F248-11E8-B48F-1D18A9856A87
last_name: Stopp
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
citation:
ama: 'Stopp JA, Sixt MK. Plan your trip before you leave: The neutrophils’ search-and-run
journey. Journal of Cell Biology. 2022;221(8). doi:10.1083/jcb.202206127'
apa: 'Stopp, J. A., & Sixt, M. K. (2022). Plan your trip before you leave: The
neutrophils’ search-and-run journey. Journal of Cell Biology. Rockefeller
University Press. https://doi.org/10.1083/jcb.202206127'
chicago: 'Stopp, Julian A, and Michael K Sixt. “Plan Your Trip before You Leave:
The Neutrophils’ Search-and-Run Journey.” Journal of Cell Biology. Rockefeller
University Press, 2022. https://doi.org/10.1083/jcb.202206127.'
ieee: 'J. A. Stopp and M. K. Sixt, “Plan your trip before you leave: The neutrophils’
search-and-run journey,” Journal of Cell Biology, vol. 221, no. 8. Rockefeller
University Press, 2022.'
ista: 'Stopp JA, Sixt MK. 2022. Plan your trip before you leave: The neutrophils’
search-and-run journey. Journal of Cell Biology. 221(8), e202206127.'
mla: 'Stopp, Julian A., and Michael K. Sixt. “Plan Your Trip before You Leave: The
Neutrophils’ Search-and-Run Journey.” Journal of Cell Biology, vol. 221,
no. 8, e202206127, Rockefeller University Press, 2022, doi:10.1083/jcb.202206127.'
short: J.A. Stopp, M.K. Sixt, Journal of Cell Biology 221 (2022).
date_created: 2023-01-16T10:01:08Z
date_published: 2022-07-20T00:00:00Z
date_updated: 2023-12-21T14:30:01Z
day: '20'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.1083/jcb.202206127
external_id:
isi:
- '000874717200001'
pmid:
- '35856919'
file:
- access_level: open_access
checksum: 6b1620743669679b48b9389bb40f5a11
content_type: application/pdf
creator: dernst
date_created: 2023-01-30T10:39:34Z
date_updated: 2023-01-30T10:39:34Z
file_id: '12451'
file_name: 2022_JourCellBiology_Stopp.pdf
file_size: 969969
relation: main_file
success: 1
file_date_updated: 2023-01-30T10:39:34Z
has_accepted_license: '1'
intvolume: ' 221'
isi: 1
issue: '8'
keyword:
- Cell Biology
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-sa/4.0/
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: Journal of Cell Biology
publication_identifier:
eissn:
- 1540-8140
issn:
- 0021-9525
publication_status: published
publisher: Rockefeller University Press
quality_controlled: '1'
related_material:
record:
- id: '14697'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: 'Plan your trip before you leave: The neutrophils’ search-and-run journey'
tmp:
image: /images/cc_by_nc_sa.png
legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
BY-NC-SA 4.0)
short: CC BY-NC-SA (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 221
year: '2022'
...
---
_id: '10703'
abstract:
- lang: eng
text: 'When crawling through the body, leukocytes often traverse tissues that are
densely packed with extracellular matrix and other cells, and this raises the
question: How do leukocytes overcome compressive mechanical loads? Here, we show
that the actin cortex of leukocytes is mechanoresponsive and that this responsiveness
requires neither force sensing via the nucleus nor adhesive interactions with
a substrate. Upon global compression of the cell body as well as local indentation
of the plasma membrane, Wiskott-Aldrich syndrome protein (WASp) assembles into
dot-like structures, providing activation platforms for Arp2/3 nucleated actin
patches. These patches locally push against the external load, which can be obstructing
collagen fibers or other cells, and thereby create space to facilitate forward
locomotion. We show in vitro and in vivo that this WASp function is rate limiting
for ameboid leukocyte migration in dense but not in loose environments and is
required for trafficking through diverse tissues such as skin and lymph nodes.'
acknowledged_ssus:
- _id: LifeSc
- _id: Bio
- _id: EM-Fac
acknowledgement: We thank N. Darwish-Miranda, F. Leite, F.P. Assen, and A. Eichner
for advice and help with experiments. We thank J. Renkawitz, E. Kiermaier, A. Juanes
Garcia, and M. Avellaneda for critical reading of the manuscript. We thank M. Driscoll
for advice on fluorescent labeling of collagen gels. This research was supported
by the Scientific Service Units (SSUs) of IST Austria through resources provided
by Molecular Biology Services/Lab Support Facility (LSF)/Bioimaging Facility/Electron
Microscopy Facility. This work was funded by grants from the European Research Council
( CoG 724373 ) and the Austrian Science Foundation (FWF) to M.S. F.G. received funding
from the European Union’s Horizon 2020 research and innovation program under the
Marie Skłodowska-Curie grant agreement no. 747687.
article_processing_charge: No
article_type: original
author:
- first_name: Florian
full_name: Gaertner, Florian
last_name: Gaertner
- first_name: Patricia
full_name: Reis-Rodrigues, Patricia
last_name: Reis-Rodrigues
- first_name: Ingrid
full_name: De Vries, Ingrid
id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
last_name: De Vries
- first_name: Miroslav
full_name: Hons, Miroslav
id: 4167FE56-F248-11E8-B48F-1D18A9856A87
last_name: Hons
orcid: 0000-0002-6625-3348
- first_name: Juan
full_name: Aguilera, Juan
last_name: Aguilera
- first_name: Michael
full_name: Riedl, Michael
id: 3BE60946-F248-11E8-B48F-1D18A9856A87
last_name: Riedl
orcid: 0000-0003-4844-6311
- first_name: Alexander F
full_name: Leithner, Alexander F
id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
last_name: Leithner
orcid: 0000-0002-1073-744X
- first_name: Saren
full_name: Tasciyan, Saren
id: 4323B49C-F248-11E8-B48F-1D18A9856A87
last_name: Tasciyan
orcid: 0000-0003-1671-393X
- first_name: Aglaja
full_name: Kopf, Aglaja
id: 31DAC7B6-F248-11E8-B48F-1D18A9856A87
last_name: Kopf
orcid: 0000-0002-2187-6656
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Vanessa
full_name: Zheden, Vanessa
id: 39C5A68A-F248-11E8-B48F-1D18A9856A87
last_name: Zheden
orcid: 0000-0002-9438-4783
- first_name: Walter
full_name: Kaufmann, Walter
id: 3F99E422-F248-11E8-B48F-1D18A9856A87
last_name: Kaufmann
orcid: 0000-0001-9735-5315
- first_name: Robert
full_name: Hauschild, Robert
id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
last_name: Hauschild
orcid: 0000-0001-9843-3522
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
citation:
ama: Gaertner F, Reis-Rodrigues P, de Vries I, et al. WASp triggers mechanosensitive
actin patches to facilitate immune cell migration in dense tissues. Developmental
Cell. 2022;57(1):47-62.e9. doi:10.1016/j.devcel.2021.11.024
apa: Gaertner, F., Reis-Rodrigues, P., de Vries, I., Hons, M., Aguilera, J., Riedl,
M., … Sixt, M. K. (2022). WASp triggers mechanosensitive actin patches to facilitate
immune cell migration in dense tissues. Developmental Cell. Cell Press ;
Elsevier. https://doi.org/10.1016/j.devcel.2021.11.024
chicago: Gaertner, Florian, Patricia Reis-Rodrigues, Ingrid de Vries, Miroslav Hons,
Juan Aguilera, Michael Riedl, Alexander F Leithner, et al. “WASp Triggers Mechanosensitive
Actin Patches to Facilitate Immune Cell Migration in Dense Tissues.” Developmental
Cell. Cell Press ; Elsevier, 2022. https://doi.org/10.1016/j.devcel.2021.11.024.
ieee: F. Gaertner et al., “WASp triggers mechanosensitive actin patches to
facilitate immune cell migration in dense tissues,” Developmental Cell,
vol. 57, no. 1. Cell Press ; Elsevier, p. 47–62.e9, 2022.
ista: Gaertner F, Reis-Rodrigues P, de Vries I, Hons M, Aguilera J, Riedl M, Leithner
AF, Tasciyan S, Kopf A, Merrin J, Zheden V, Kaufmann W, Hauschild R, Sixt MK.
2022. WASp triggers mechanosensitive actin patches to facilitate immune cell migration
in dense tissues. Developmental Cell. 57(1), 47–62.e9.
mla: Gaertner, Florian, et al. “WASp Triggers Mechanosensitive Actin Patches to
Facilitate Immune Cell Migration in Dense Tissues.” Developmental Cell,
vol. 57, no. 1, Cell Press ; Elsevier, 2022, p. 47–62.e9, doi:10.1016/j.devcel.2021.11.024.
short: F. Gaertner, P. Reis-Rodrigues, I. de Vries, M. Hons, J. Aguilera, M. Riedl,
A.F. Leithner, S. Tasciyan, A. Kopf, J. Merrin, V. Zheden, W. Kaufmann, R. Hauschild,
M.K. Sixt, Developmental Cell 57 (2022) 47–62.e9.
date_created: 2022-01-30T23:01:33Z
date_published: 2022-01-10T00:00:00Z
date_updated: 2024-03-27T23:30:23Z
day: '10'
ddc:
- '570'
department:
- _id: MiSi
- _id: EM-Fac
- _id: NanoFab
- _id: BjHo
doi: 10.1016/j.devcel.2021.11.024
ec_funded: 1
external_id:
isi:
- '000768933800005'
pmid:
- '34919802'
intvolume: ' 57'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S1534580721009497
month: '01'
oa: 1
oa_version: Published Version
page: 47-62.e9
pmid: 1
project:
- _id: 260AA4E2-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '747687'
name: Mechanical Adaptation of Lamellipodial Actin Networks in Migrating Cells
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '724373'
name: Cellular navigation along spatial gradients
publication: Developmental Cell
publication_identifier:
eissn:
- 1878-1551
issn:
- 1534-5807
publication_status: published
publisher: Cell Press ; Elsevier
quality_controlled: '1'
related_material:
record:
- id: '12726'
relation: dissertation_contains
status: public
- id: '14530'
relation: dissertation_contains
status: public
- id: '12401'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: WASp triggers mechanosensitive actin patches to facilitate immune cell migration
in dense tissues
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 57
year: '2022'
...
---
_id: '12401'
abstract:
- lang: eng
text: "Detachment of the cancer cells from the bulk of the tumor is the first step
of metastasis, which\r\nis the primary cause of cancer related deaths. It is unclear,
which factors contribute to this step.\r\nRecent studies indicate a crucial role
of the tumor microenvironment in malignant\r\ntransformation and metastasis. Studying
cancer cell invasion and detachments quantitatively in\r\nthe context of its physiological
microenvironment is technically challenging. Especially, precise\r\ncontrol of
microenvironmental properties in vivo is currently not possible. Here, I studied
the\r\nrole of microenvironment geometry in the invasion and detachment of cancer
cells from the\r\nbulk with a simplistic and reductionist approach. In this approach,
I engineered microfluidic\r\ndevices to mimic a pseudo 3D extracellular matrix
environment, where I was able to\r\nquantitatively tune the geometrical configuration
of the microenvironment and follow tumor\r\ncells with fluorescence live imaging.
To aid quantitative analysis I developed a widely applicable\r\nsoftware application
to automatically analyze and visualize particle tracking data.\r\nQuantitative
analysis of tumor cell invasion in isotropic and anisotropic microenvironments\r\nshowed
that heterogeneity in the microenvironment promotes faster invasion and more\r\nfrequent
detachment of cells. These observations correlated with overall higher speed of
cells at\r\nthe edge of the bulk of the cells. In heterogeneous microenvironments
cells preferentially\r\npassed through larger pores, thus invading areas of least
resistance and generating finger-like\r\ninvasive structures. The detachments
occurred mostly at the tips of these structures.\r\nTo investigate the potential
mechanism, we established a two dimensional model to simulate\r\nactive Brownian
particles representing the cell nuclei dynamics. These simulations backed our
in\r\nvitro observations without the need of precise fitting the simulation parameters.
Our model\r\nsuggests the importance of the pore heterogeneity in the direction
perpendicular to the\r\norientation of bias field (lateral heterogeneity), which
causes the interface roughening."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Saren
full_name: Tasciyan, Saren
id: 4323B49C-F248-11E8-B48F-1D18A9856A87
last_name: Tasciyan
orcid: 0000-0003-1671-393X
citation:
ama: Tasciyan S. Role of microenvironment heterogeneity in cancer cell invasion.
2022. doi:10.15479/at:ista:12401
apa: Tasciyan, S. (2022). Role of microenvironment heterogeneity in cancer cell
invasion. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:12401
chicago: Tasciyan, Saren. “Role of Microenvironment Heterogeneity in Cancer Cell
Invasion.” Institute of Science and Technology Austria, 2022. https://doi.org/10.15479/at:ista:12401.
ieee: S. Tasciyan, “Role of microenvironment heterogeneity in cancer cell invasion,”
Institute of Science and Technology Austria, 2022.
ista: Tasciyan S. 2022. Role of microenvironment heterogeneity in cancer cell invasion.
Institute of Science and Technology Austria.
mla: Tasciyan, Saren. Role of Microenvironment Heterogeneity in Cancer Cell Invasion.
Institute of Science and Technology Austria, 2022, doi:10.15479/at:ista:12401.
short: S. Tasciyan, Role of Microenvironment Heterogeneity in Cancer Cell Invasion,
Institute of Science and Technology Austria, 2022.
date_created: 2023-01-26T11:55:16Z
date_published: 2022-12-22T00:00:00Z
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degree_awarded: PhD
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doi: 10.15479/at:ista:12401
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related_material:
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status: public
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supervisor:
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full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
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title: Role of microenvironment heterogeneity in cancer cell invasion
type: dissertation
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...