---
_id: '1537'
abstract:
- lang: eng
text: 3D amoeboid cell migration is central to many developmental and disease-related
processes such as cancer metastasis. Here, we identify a unique prototypic amoeboid
cell migration mode in early zebrafish embryos, termed stable-bleb migration.
Stable-bleb cells display an invariant polarized balloon-like shape with exceptional
migration speed and persistence. Progenitor cells can be reversibly transformed
into stable-bleb cells irrespective of their primary fate and motile characteristics
by increasing myosin II activity through biochemical or mechanical stimuli. Using
a combination of theory and experiments, we show that, in stable-bleb cells, cortical
contractility fluctuations trigger a stochastic switch into amoeboid motility,
and a positive feedback between cortical flows and gradients in contractility
maintains stable-bleb cell polarization. We further show that rearward cortical
flows drive stable-bleb cell migration in various adhesive and non-adhesive environments,
unraveling a highly versatile amoeboid migration phenotype.
acknowledged_ssus:
- _id: SSU
acknowledgement: 'We would like to thank R. Hausschild and E. Papusheva for technical
assistance and the service facilities at the IST Austria for continuous support.
The caRhoA plasmid was a kind gift of T. Kudoh and A. Takesono. We thank M. Piel
and E. Paluch for exchanging unpublished data. '
author:
- first_name: Verena
full_name: Ruprecht, Verena
id: 4D71A03A-F248-11E8-B48F-1D18A9856A87
last_name: Ruprecht
orcid: 0000-0003-4088-8633
- first_name: Stefan
full_name: Wieser, Stefan
id: 355AA5A0-F248-11E8-B48F-1D18A9856A87
last_name: Wieser
orcid: 0000-0002-2670-2217
- first_name: Andrew
full_name: Callan Jones, Andrew
last_name: Callan Jones
- first_name: Michael
full_name: Smutny, Michael
id: 3FE6E4E8-F248-11E8-B48F-1D18A9856A87
last_name: Smutny
orcid: 0000-0002-5920-9090
- first_name: Hitoshi
full_name: Morita, Hitoshi
id: 4C6E54C6-F248-11E8-B48F-1D18A9856A87
last_name: Morita
- first_name: Keisuke
full_name: Sako, Keisuke
id: 3BED66BE-F248-11E8-B48F-1D18A9856A87
last_name: Sako
orcid: 0000-0002-6453-8075
- first_name: Vanessa
full_name: Barone, Vanessa
id: 419EECCC-F248-11E8-B48F-1D18A9856A87
last_name: Barone
orcid: 0000-0003-2676-3367
- first_name: Monika
full_name: Ritsch Marte, Monika
last_name: Ritsch Marte
- 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: 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: Ruprecht V, Wieser S, Callan Jones A, et al. Cortical contractility triggers
a stochastic switch to fast amoeboid cell motility. Cell. 2015;160(4):673-685.
doi:10.1016/j.cell.2015.01.008
apa: Ruprecht, V., Wieser, S., Callan Jones, A., Smutny, M., Morita, H., Sako, K.,
… Heisenberg, C.-P. J. (2015). Cortical contractility triggers a stochastic switch
to fast amoeboid cell motility. Cell. Cell Press. https://doi.org/10.1016/j.cell.2015.01.008
chicago: Ruprecht, Verena, Stefan Wieser, Andrew Callan Jones, Michael Smutny, Hitoshi
Morita, Keisuke Sako, Vanessa Barone, et al. “Cortical Contractility Triggers
a Stochastic Switch to Fast Amoeboid Cell Motility.” Cell. Cell Press,
2015. https://doi.org/10.1016/j.cell.2015.01.008.
ieee: V. Ruprecht et al., “Cortical contractility triggers a stochastic switch
to fast amoeboid cell motility,” Cell, vol. 160, no. 4. Cell Press, pp.
673–685, 2015.
ista: Ruprecht V, Wieser S, Callan Jones A, Smutny M, Morita H, Sako K, Barone V,
Ritsch Marte M, Sixt MK, Voituriez R, Heisenberg C-PJ. 2015. Cortical contractility
triggers a stochastic switch to fast amoeboid cell motility. Cell. 160(4), 673–685.
mla: Ruprecht, Verena, et al. “Cortical Contractility Triggers a Stochastic Switch
to Fast Amoeboid Cell Motility.” Cell, vol. 160, no. 4, Cell Press, 2015,
pp. 673–85, doi:10.1016/j.cell.2015.01.008.
short: V. Ruprecht, S. Wieser, A. Callan Jones, M. Smutny, H. Morita, K. Sako, V.
Barone, M. Ritsch Marte, M.K. Sixt, R. Voituriez, C.-P.J. Heisenberg, Cell 160
(2015) 673–685.
date_created: 2018-12-11T11:52:35Z
date_published: 2015-02-12T00:00:00Z
date_updated: 2023-09-07T12:05:08Z
day: '12'
ddc:
- '570'
department:
- _id: CaHe
- _id: MiSi
doi: 10.1016/j.cell.2015.01.008
file:
- access_level: open_access
checksum: 228d3edf40627d897b3875088a0ac51f
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:13:21Z
date_updated: 2020-07-14T12:45:01Z
file_id: '5003'
file_name: IST-2016-484-v1+1_1-s2.0-S0092867415000094-main.pdf
file_size: 4362653
relation: main_file
file_date_updated: 2020-07-14T12:45:01Z
has_accepted_license: '1'
intvolume: ' 160'
issue: '4'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '02'
oa: 1
oa_version: Published Version
page: 673 - 685
project:
- _id: 2529486C-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: T 560-B17
name: Cell- and Tissue Mechanics in Zebrafish Germ Layer Formation
- _id: 2527D5CC-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I 812-B12
name: Cell Cortex and Germ Layer Formation in Zebrafish Gastrulation
publication: Cell
publication_status: published
publisher: Cell Press
publist_id: '5634'
pubrep_id: '484'
quality_controlled: '1'
related_material:
record:
- id: '961'
relation: dissertation_contains
status: public
scopus_import: 1
status: public
title: Cortical contractility triggers a stochastic switch to fast amoeboid cell motility
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: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 160
year: '2015'
...
---
_id: '1591'
abstract:
- lang: eng
text: Auxin participates in a multitude of developmental processes, as well as responses
to environmental cues. Compared with other plant hormones, auxin exhibits a unique
property, as it undergoes directional, cell-to-cell transport facilitated by plasma
membrane-localized transport proteins. Among them, a prominent role has been ascribed
to the PIN family of auxin efflux facilitators. PIN proteins direct polar auxin
transport on account of their asymmetric subcellular localizations. In this review,
we provide an overview of the multiple developmental roles of PIN proteins, including
the atypical endoplasmic reticulum-localized members of the family, and look at
the family from an evolutionary perspective. Next, we cover the cell biological
and molecular aspects of PIN function, in particular the establishment of their
polar subcellular localization. Hormonal and environmental inputs into the regulation
of PIN action are summarized as well.
author:
- first_name: Maciek
full_name: Adamowski, Maciek
id: 45F536D2-F248-11E8-B48F-1D18A9856A87
last_name: Adamowski
orcid: 0000-0001-6463-5257
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: 'Adamowski M, Friml J. PIN-dependent auxin transport: Action, regulation, and
evolution. Plant Cell. 2015;27(1):20-32. doi:10.1105/tpc.114.134874'
apa: 'Adamowski, M., & Friml, J. (2015). PIN-dependent auxin transport: Action,
regulation, and evolution. Plant Cell. American Society of Plant Biologists.
https://doi.org/10.1105/tpc.114.134874'
chicago: 'Adamowski, Maciek, and Jiří Friml. “PIN-Dependent Auxin Transport: Action,
Regulation, and Evolution.” Plant Cell. American Society of Plant Biologists,
2015. https://doi.org/10.1105/tpc.114.134874.'
ieee: 'M. Adamowski and J. Friml, “PIN-dependent auxin transport: Action, regulation,
and evolution,” Plant Cell, vol. 27, no. 1. American Society of Plant Biologists,
pp. 20–32, 2015.'
ista: 'Adamowski M, Friml J. 2015. PIN-dependent auxin transport: Action, regulation,
and evolution. Plant Cell. 27(1), 20–32.'
mla: 'Adamowski, Maciek, and Jiří Friml. “PIN-Dependent Auxin Transport: Action,
Regulation, and Evolution.” Plant Cell, vol. 27, no. 1, American Society
of Plant Biologists, 2015, pp. 20–32, doi:10.1105/tpc.114.134874.'
short: M. Adamowski, J. Friml, Plant Cell 27 (2015) 20–32.
date_created: 2018-12-11T11:52:54Z
date_published: 2015-01-20T00:00:00Z
date_updated: 2023-09-07T12:06:09Z
day: '20'
department:
- _id: JiFr
doi: 10.1105/tpc.114.134874
external_id:
pmid:
- '25604445'
intvolume: ' 27'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4330589/
month: '01'
oa: 1
oa_version: Submitted Version
page: 20 - 32
pmid: 1
publication: Plant Cell
publication_status: published
publisher: American Society of Plant Biologists
publist_id: '5580'
quality_controlled: '1'
related_material:
record:
- id: '938'
relation: dissertation_contains
status: public
scopus_import: 1
status: public
title: 'PIN-dependent auxin transport: Action, regulation, and evolution'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 27
year: '2015'
...
---
_id: '1677'
abstract:
- lang: eng
text: We consider real symmetric and complex Hermitian random matrices with the
additional symmetry hxy = hN-y,N-x. The matrix elements are independent (up to
the fourfold symmetry) and not necessarily identically distributed. This ensemble
naturally arises as the Fourier transform of a Gaussian orthogonal ensemble. Italso
occurs as the flip matrix model - an approximation of the two-dimensional Anderson
model at small disorder. We show that the density of states converges to the Wigner
semicircle law despite the new symmetry type. We also prove the local version
of the semicircle law on the optimal scale.
article_number: '103301'
author:
- first_name: Johannes
full_name: Alt, Johannes
id: 36D3D8B6-F248-11E8-B48F-1D18A9856A87
last_name: Alt
citation:
ama: Alt J. The local semicircle law for random matrices with a fourfold symmetry.
Journal of Mathematical Physics. 2015;56(10). doi:10.1063/1.4932606
apa: Alt, J. (2015). The local semicircle law for random matrices with a fourfold
symmetry. Journal of Mathematical Physics. American Institute of Physics.
https://doi.org/10.1063/1.4932606
chicago: Alt, Johannes. “The Local Semicircle Law for Random Matrices with a Fourfold
Symmetry.” Journal of Mathematical Physics. American Institute of Physics,
2015. https://doi.org/10.1063/1.4932606.
ieee: J. Alt, “The local semicircle law for random matrices with a fourfold symmetry,”
Journal of Mathematical Physics, vol. 56, no. 10. American Institute of
Physics, 2015.
ista: Alt J. 2015. The local semicircle law for random matrices with a fourfold
symmetry. Journal of Mathematical Physics. 56(10), 103301.
mla: Alt, Johannes. “The Local Semicircle Law for Random Matrices with a Fourfold
Symmetry.” Journal of Mathematical Physics, vol. 56, no. 10, 103301, American
Institute of Physics, 2015, doi:10.1063/1.4932606.
short: J. Alt, Journal of Mathematical Physics 56 (2015).
date_created: 2018-12-11T11:53:25Z
date_published: 2015-10-09T00:00:00Z
date_updated: 2023-09-07T12:38:08Z
day: '09'
department:
- _id: LaEr
doi: 10.1063/1.4932606
ec_funded: 1
intvolume: ' 56'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1506.04683
month: '10'
oa: 1
oa_version: Preprint
project:
- _id: 258DCDE6-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '338804'
name: Random matrices, universality and disordered quantum systems
publication: Journal of Mathematical Physics
publication_status: published
publisher: American Institute of Physics
publist_id: '5472'
quality_controlled: '1'
related_material:
record:
- id: '149'
relation: dissertation_contains
status: public
scopus_import: 1
status: public
title: The local semicircle law for random matrices with a fourfold symmetry
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 56
year: '2015'
...
---
_id: '1678'
abstract:
- lang: eng
text: High-throughput live-cell screens are intricate elements of systems biology
studies and drug discovery pipelines. Here, we demonstrate an optogenetics-assisted
method that avoids the need for chemical activators and reporters, reduces the
number of operational steps and increases information content in a cell-based
small-molecule screen against human protein kinases, including an orphan receptor
tyrosine kinase. This blueprint for all-optical screening can be adapted to many
drug targets and cellular processes.
acknowledgement: 'This work was supported by grants from the European Union Seventh
Framework Programme (CIG-303564 to H.J. and ERC-StG-311166 to S.M.B.N.), the Human
Frontier Science Program (RGY0084_2012 to H.J.) and the Herzfelder Foundation (to
M.G.). A.I.-P. was supported by a Ramon Areces fellowship, and E.R. by the graduate
program MolecularDrugTargets (Austrian Science Fund (FWF): W 1232) and a FemTech
fellowship (3580812 Austrian Research Promotion Agency).'
author:
- first_name: Álvaro
full_name: Inglés Prieto, Álvaro
id: 2A9DB292-F248-11E8-B48F-1D18A9856A87
last_name: Inglés Prieto
orcid: 0000-0002-5409-8571
- first_name: Eva
full_name: Gschaider-Reichhart, Eva
id: 3FEE232A-F248-11E8-B48F-1D18A9856A87
last_name: Gschaider-Reichhart
orcid: 0000-0002-7218-7738
- first_name: Markus
full_name: Muellner, Markus
last_name: Muellner
- first_name: Matthias
full_name: Nowak, Matthias
id: 30845DAA-F248-11E8-B48F-1D18A9856A87
last_name: Nowak
- first_name: Sebastian
full_name: Nijman, Sebastian
last_name: Nijman
- first_name: Michael
full_name: Grusch, Michael
last_name: Grusch
- first_name: Harald L
full_name: Janovjak, Harald L
id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
last_name: Janovjak
orcid: 0000-0002-8023-9315
citation:
ama: Inglés Prieto Á, Gschaider-Reichhart E, Muellner M, et al. Light-assisted small-molecule
screening against protein kinases. Nature Chemical Biology. 2015;11(12):952-954.
doi:10.1038/nchembio.1933
apa: Inglés Prieto, Á., Gschaider-Reichhart, E., Muellner, M., Nowak, M., Nijman,
S., Grusch, M., & Janovjak, H. L. (2015). Light-assisted small-molecule screening
against protein kinases. Nature Chemical Biology. Nature Publishing Group.
https://doi.org/10.1038/nchembio.1933
chicago: Inglés Prieto, Álvaro, Eva Gschaider-Reichhart, Markus Muellner, Matthias
Nowak, Sebastian Nijman, Michael Grusch, and Harald L Janovjak. “Light-Assisted
Small-Molecule Screening against Protein Kinases.” Nature Chemical Biology.
Nature Publishing Group, 2015. https://doi.org/10.1038/nchembio.1933.
ieee: Á. Inglés Prieto et al., “Light-assisted small-molecule screening against
protein kinases,” Nature Chemical Biology, vol. 11, no. 12. Nature Publishing
Group, pp. 952–954, 2015.
ista: Inglés Prieto Á, Gschaider-Reichhart E, Muellner M, Nowak M, Nijman S, Grusch
M, Janovjak HL. 2015. Light-assisted small-molecule screening against protein
kinases. Nature Chemical Biology. 11(12), 952–954.
mla: Inglés Prieto, Álvaro, et al. “Light-Assisted Small-Molecule Screening against
Protein Kinases.” Nature Chemical Biology, vol. 11, no. 12, Nature Publishing
Group, 2015, pp. 952–54, doi:10.1038/nchembio.1933.
short: Á. Inglés Prieto, E. Gschaider-Reichhart, M. Muellner, M. Nowak, S. Nijman,
M. Grusch, H.L. Janovjak, Nature Chemical Biology 11 (2015) 952–954.
date_created: 2018-12-11T11:53:25Z
date_published: 2015-10-12T00:00:00Z
date_updated: 2023-09-07T12:49:09Z
day: '12'
ddc:
- '571'
department:
- _id: HaJa
- _id: LifeSc
doi: 10.1038/nchembio.1933
ec_funded: 1
file:
- access_level: open_access
checksum: e9fb251dfcb7cd209b83f17867e61321
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:10:51Z
date_updated: 2020-07-14T12:45:12Z
file_id: '4842'
file_name: IST-2017-837-v1+1_ingles-prieto.pdf
file_size: 1308364
relation: main_file
file_date_updated: 2020-07-14T12:45:12Z
has_accepted_license: '1'
intvolume: ' 11'
issue: '12'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Submitted Version
page: 952 - 954
project:
- _id: 25548C20-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '303564'
name: Microbial Ion Channels for Synthetic Neurobiology
- _id: 255BFFFA-B435-11E9-9278-68D0E5697425
grant_number: RGY0084/2012
name: In situ real-time imaging of neurotransmitter signaling using designer optical
sensors (HFSP Young Investigator)
- _id: 255A6082-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: W1232-B24
name: Molecular Drug Targets
publication: Nature Chemical Biology
publication_status: published
publisher: Nature Publishing Group
publist_id: '5471'
pubrep_id: '837'
quality_controlled: '1'
related_material:
record:
- id: '418'
relation: dissertation_contains
status: public
scopus_import: 1
status: public
title: Light-assisted small-molecule screening against protein kinases
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2015'
...
---
_id: '1576'
abstract:
- lang: eng
text: 'Gene expression is controlled primarily by interactions between transcription
factor proteins (TFs) and the regulatory DNA sequence, a process that can be captured
well by thermodynamic models of regulation. These models, however, neglect regulatory
crosstalk: the possibility that noncognate TFs could initiate transcription, with
potentially disastrous effects for the cell. Here, we estimate the importance
of crosstalk, suggest that its avoidance strongly constrains equilibrium models
of TF binding, and propose an alternative nonequilibrium scheme that implements
kinetic proofreading to suppress erroneous initiation. This proposal is consistent
with the observed covalent modifications of the transcriptional apparatus and
predicts increased noise in gene expression as a trade-off for improved specificity.
Using information theory, we quantify this trade-off to find when optimal proofreading
architectures are favored over their equilibrium counterparts. Such architectures
exhibit significant super-Poisson noise at low expression in steady state.'
article_number: '248101'
author:
- first_name: Sarah A
full_name: Cepeda Humerez, Sarah A
id: 3DEE19A4-F248-11E8-B48F-1D18A9856A87
last_name: Cepeda Humerez
- first_name: Georg
full_name: Rieckh, Georg
id: 34DA8BD6-F248-11E8-B48F-1D18A9856A87
last_name: Rieckh
- first_name: Gasper
full_name: Tkacik, Gasper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkacik
orcid: 0000-0002-6699-1455
citation:
ama: Cepeda Humerez SA, Rieckh G, Tkačik G. Stochastic proofreading mechanism alleviates
crosstalk in transcriptional regulation. Physical Review Letters. 2015;115(24).
doi:10.1103/PhysRevLett.115.248101
apa: Cepeda Humerez, S. A., Rieckh, G., & Tkačik, G. (2015). Stochastic proofreading
mechanism alleviates crosstalk in transcriptional regulation. Physical Review
Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.115.248101
chicago: Cepeda Humerez, Sarah A, Georg Rieckh, and Gašper Tkačik. “Stochastic Proofreading
Mechanism Alleviates Crosstalk in Transcriptional Regulation.” Physical Review
Letters. American Physical Society, 2015. https://doi.org/10.1103/PhysRevLett.115.248101.
ieee: S. A. Cepeda Humerez, G. Rieckh, and G. Tkačik, “Stochastic proofreading mechanism
alleviates crosstalk in transcriptional regulation,” Physical Review Letters,
vol. 115, no. 24. American Physical Society, 2015.
ista: Cepeda Humerez SA, Rieckh G, Tkačik G. 2015. Stochastic proofreading mechanism
alleviates crosstalk in transcriptional regulation. Physical Review Letters. 115(24),
248101.
mla: Cepeda Humerez, Sarah A., et al. “Stochastic Proofreading Mechanism Alleviates
Crosstalk in Transcriptional Regulation.” Physical Review Letters, vol.
115, no. 24, 248101, American Physical Society, 2015, doi:10.1103/PhysRevLett.115.248101.
short: S.A. Cepeda Humerez, G. Rieckh, G. Tkačik, Physical Review Letters 115 (2015).
date_created: 2018-12-11T11:52:49Z
date_published: 2015-12-08T00:00:00Z
date_updated: 2023-09-07T12:55:21Z
day: '08'
department:
- _id: GaTk
doi: 10.1103/PhysRevLett.115.248101
ec_funded: 1
intvolume: ' 115'
issue: '24'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1504.05716
month: '12'
oa: 1
oa_version: Preprint
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '5595'
quality_controlled: '1'
related_material:
record:
- id: '6473'
relation: part_of_dissertation
status: public
scopus_import: 1
status: public
title: Stochastic proofreading mechanism alleviates crosstalk in transcriptional regulation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 115
year: '2015'
...