---
_id: '6297'
abstract:
- lang: eng
text: Cell-cell and cell-glycocalyx interactions under flow are important for the
behaviour of circulating cells in blood and lymphatic vessels. However, such interactions
are not well understood due in part to a lack of tools to study them in defined
environments. Here, we develop a versatile in vitro platform for the study of
cell-glycocalyx interactions in well-defined physical and chemical settings under
flow. Our approach is demonstrated with the interaction between hyaluronan (HA,
a key component of the endothelial glycocalyx) and its cell receptor CD44. We
generate HA brushes in situ within a microfluidic device, and demonstrate the
tuning of their physical (thickness and softness) and chemical (density of CD44
binding sites) properties using characterisation with reflection interference
contrast microscopy (RICM) and application of polymer theory. We highlight the
interactions of HA brushes with CD44-displaying beads and cells under flow. Observations
of CD44+ beads on a HA brush with RICM enabled the 3-dimensional trajectories
to be generated, and revealed interactions in the form of stop and go phases with
reduced rolling velocity and reduced distance between the bead and the HA brush,
compared to uncoated beads. Combined RICM and bright-field microscopy of CD44+
AKR1 T-lymphocytes revealed complementary information about the dynamics of cell
rolling and cell morphology, and highlighted the formation of tethers and slings,
as they interacted with a HA brush under flow. This platform can readily incorporate
more complex models of the glycocalyx, and should permit the study of how mechanical
and biochemical factors are orchestrated to enable highly selective blood cell-vessel
wall interactions under flow.
article_processing_charge: No
article_type: original
author:
- first_name: Heather S.
full_name: Davies, Heather S.
last_name: Davies
- first_name: Natalia S.
full_name: Baranova, Natalia S.
id: 38661662-F248-11E8-B48F-1D18A9856A87
last_name: Baranova
orcid: 0000-0002-3086-9124
- first_name: Nouha
full_name: El Amri, Nouha
last_name: El Amri
- first_name: Liliane
full_name: Coche-Guérente, Liliane
last_name: Coche-Guérente
- first_name: Claude
full_name: Verdier, Claude
last_name: Verdier
- first_name: Lionel
full_name: Bureau, Lionel
last_name: Bureau
- first_name: Ralf P.
full_name: Richter, Ralf P.
last_name: Richter
- first_name: Delphine
full_name: Débarre, Delphine
last_name: Débarre
citation:
ama: Davies HS, Baranova NS, El Amri N, et al. An integrated assay to probe endothelial
glycocalyx-blood cell interactions under flow in mechanically and biochemically
well-defined environments. Matrix Biology. 2019;78-79:47-59. doi:10.1016/j.matbio.2018.12.002
apa: Davies, H. S., Baranova, N. S., El Amri, N., Coche-Guérente, L., Verdier, C.,
Bureau, L., … Débarre, D. (2019). An integrated assay to probe endothelial glycocalyx-blood
cell interactions under flow in mechanically and biochemically well-defined environments.
Matrix Biology. Elsevier. https://doi.org/10.1016/j.matbio.2018.12.002
chicago: Davies, Heather S., Natalia S. Baranova, Nouha El Amri, Liliane Coche-Guérente,
Claude Verdier, Lionel Bureau, Ralf P. Richter, and Delphine Débarre. “An Integrated
Assay to Probe Endothelial Glycocalyx-Blood Cell Interactions under Flow in Mechanically
and Biochemically Well-Defined Environments.” Matrix Biology. Elsevier,
2019. https://doi.org/10.1016/j.matbio.2018.12.002.
ieee: H. S. Davies et al., “An integrated assay to probe endothelial glycocalyx-blood
cell interactions under flow in mechanically and biochemically well-defined environments,”
Matrix Biology, vol. 78–79. Elsevier, pp. 47–59, 2019.
ista: Davies HS, Baranova NS, El Amri N, Coche-Guérente L, Verdier C, Bureau L,
Richter RP, Débarre D. 2019. An integrated assay to probe endothelial glycocalyx-blood
cell interactions under flow in mechanically and biochemically well-defined environments.
Matrix Biology. 78–79, 47–59.
mla: Davies, Heather S., et al. “An Integrated Assay to Probe Endothelial Glycocalyx-Blood
Cell Interactions under Flow in Mechanically and Biochemically Well-Defined Environments.”
Matrix Biology, vol. 78–79, Elsevier, 2019, pp. 47–59, doi:10.1016/j.matbio.2018.12.002.
short: H.S. Davies, N.S. Baranova, N. El Amri, L. Coche-Guérente, C. Verdier, L.
Bureau, R.P. Richter, D. Débarre, Matrix Biology 78–79 (2019) 47–59.
date_created: 2019-04-11T20:55:01Z
date_published: 2019-05-01T00:00:00Z
date_updated: 2023-08-25T10:11:28Z
day: '01'
ddc:
- '570'
department:
- _id: MaLo
doi: 10.1016/j.matbio.2018.12.002
external_id:
isi:
- '000468707600005'
file:
- access_level: open_access
checksum: 790878cd78bfc54a147ddcc7c8f286a0
content_type: application/pdf
creator: dernst
date_created: 2020-05-14T09:02:07Z
date_updated: 2020-07-14T12:47:27Z
file_id: '7825'
file_name: 2018_MatrixBiology_Davies.pdf
file_size: 4444339
relation: main_file
file_date_updated: 2020-07-14T12:47:27Z
has_accepted_license: '1'
isi: 1
language:
- iso: eng
month: '05'
oa: 1
oa_version: Submitted Version
page: 47-59
publication: Matrix Biology
publication_identifier:
issn:
- 0945-053X
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: An integrated assay to probe endothelial glycocalyx-blood cell interactions
under flow in mechanically and biochemically well-defined environments
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: 78-79
year: '2019'
...
---
_id: '6310'
abstract:
- lang: eng
text: An asymptotic formula is established for the number of rational points of
bounded anticanonical height which lie on a certain Zariskiopen subset of an arbitrary
smooth biquadratic hypersurface in sufficiently many variables. The proof uses
the Hardy–Littlewood circle method.
article_processing_charge: No
author:
- first_name: Timothy D
full_name: Browning, Timothy D
id: 35827D50-F248-11E8-B48F-1D18A9856A87
last_name: Browning
orcid: 0000-0002-8314-0177
- first_name: L.Q.
full_name: Hu, L.Q.
last_name: Hu
citation:
ama: Browning TD, Hu LQ. Counting rational points on biquadratic hypersurfaces.
Advances in Mathematics. 2019;349:920-940. doi:10.1016/j.aim.2019.04.031
apa: Browning, T. D., & Hu, L. Q. (2019). Counting rational points on biquadratic
hypersurfaces. Advances in Mathematics. Elsevier. https://doi.org/10.1016/j.aim.2019.04.031
chicago: Browning, Timothy D, and L.Q. Hu. “Counting Rational Points on Biquadratic
Hypersurfaces.” Advances in Mathematics. Elsevier, 2019. https://doi.org/10.1016/j.aim.2019.04.031.
ieee: T. D. Browning and L. Q. Hu, “Counting rational points on biquadratic hypersurfaces,”
Advances in Mathematics, vol. 349. Elsevier, pp. 920–940, 2019.
ista: Browning TD, Hu LQ. 2019. Counting rational points on biquadratic hypersurfaces.
Advances in Mathematics. 349, 920–940.
mla: Browning, Timothy D., and L. Q. Hu. “Counting Rational Points on Biquadratic
Hypersurfaces.” Advances in Mathematics, vol. 349, Elsevier, 2019, pp.
920–40, doi:10.1016/j.aim.2019.04.031.
short: T.D. Browning, L.Q. Hu, Advances in Mathematics 349 (2019) 920–940.
date_created: 2019-04-16T09:13:25Z
date_published: 2019-06-20T00:00:00Z
date_updated: 2023-08-25T10:11:55Z
day: '20'
ddc:
- '512'
department:
- _id: TiBr
doi: 10.1016/j.aim.2019.04.031
external_id:
arxiv:
- '1810.08426'
isi:
- '000468857300025'
file:
- access_level: open_access
checksum: a63594a3a91b4ba6e2a1b78b0720b3d0
content_type: application/pdf
creator: tbrownin
date_created: 2019-04-16T09:12:20Z
date_updated: 2020-07-14T12:47:27Z
file_id: '6311'
file_name: wliqun.pdf
file_size: 379158
relation: main_file
file_date_updated: 2020-07-14T12:47:27Z
has_accepted_license: '1'
intvolume: ' 349'
isi: 1
language:
- iso: eng
month: '06'
oa: 1
oa_version: Submitted Version
page: 920-940
publication: Advances in Mathematics
publication_identifier:
eissn:
- '10902082'
issn:
- '00018708'
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Counting rational points on biquadratic hypersurfaces
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 349
year: '2019'
...
---
_id: '6261'
abstract:
- lang: eng
text: Nitrate regulation of root stem cell activity is auxin-dependent.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Y
full_name: Wang, Y
last_name: Wang
- first_name: Z
full_name: Gong, Z
last_name: Gong
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: J
full_name: Zhang, J
last_name: Zhang
citation:
ama: Wang Y, Gong Z, Friml J, Zhang J. Nitrate modulates the differentiation of
root distal stem cells. Plant Physiology. 2019;180(1):22-25. doi:10.1104/pp.18.01305
apa: Wang, Y., Gong, Z., Friml, J., & Zhang, J. (2019). Nitrate modulates the
differentiation of root distal stem cells. Plant Physiology. ASPB. https://doi.org/10.1104/pp.18.01305
chicago: Wang, Y, Z Gong, Jiří Friml, and J Zhang. “Nitrate Modulates the Differentiation
of Root Distal Stem Cells.” Plant Physiology. ASPB, 2019. https://doi.org/10.1104/pp.18.01305.
ieee: Y. Wang, Z. Gong, J. Friml, and J. Zhang, “Nitrate modulates the differentiation
of root distal stem cells,” Plant Physiology, vol. 180, no. 1. ASPB, pp.
22–25, 2019.
ista: Wang Y, Gong Z, Friml J, Zhang J. 2019. Nitrate modulates the differentiation
of root distal stem cells. Plant Physiology. 180(1), 22–25.
mla: Wang, Y., et al. “Nitrate Modulates the Differentiation of Root Distal Stem
Cells.” Plant Physiology, vol. 180, no. 1, ASPB, 2019, pp. 22–25, doi:10.1104/pp.18.01305.
short: Y. Wang, Z. Gong, J. Friml, J. Zhang, Plant Physiology 180 (2019) 22–25.
date_created: 2019-04-09T08:46:17Z
date_published: 2019-05-01T00:00:00Z
date_updated: 2023-08-25T10:10:23Z
day: '01'
department:
- _id: JiFr
doi: 10.1104/pp.18.01305
external_id:
isi:
- '000466860800010'
pmid:
- '30787134'
intvolume: ' 180'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1104/pp.18.01305
month: '05'
oa: 1
oa_version: Published Version
page: 22-25
pmid: 1
publication: Plant Physiology
publication_identifier:
eissn:
- 1532-2548
issn:
- 0032-0889
publication_status: published
publisher: ASPB
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nitrate modulates the differentiation of root distal stem cells
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 180
year: '2019'
...
---
_id: '6352'
abstract:
- lang: eng
text: Chronic overuse of common pharmaceuticals, e.g. acetaminophen (paracetamol),
often leads to the development of acute liver failure (ALF). This study aimed
to elucidate the effect of cultured mesenchymal stem cells (MSCs) proteome on
the onset of liver damage and regeneration dynamics in animals with ALF induced
by acetaminophen, to test the liver protective efficacy of MSCs proteome depending
on the oxygen tension in cell culture, and to blueprint protein components responsible
for the effect. Protein compositions prepared from MSCs cultured in mild hypoxic
(5% and 10% O2) and normal (21% O2) conditions were used to treat ALF induced
in mice by injection of acetaminophen. To test the effect of reduced oxygen tension
in cell culture on resulting MSCs proteome content we applied a combination of
high performance liquid chromatography and mass-spectrometry (LC–MS/MS) for the
identification of proteins in lysates of MSCs cultured at different O2 levels.
The treatment of acetaminophen-administered animals with proteins released from
cultured MSCs resulted in the inhibition of inflammatory reactions in damaged
liver; the area of hepatocyte necrosis being reduced in the first 24 h. Compositions
obtained from MSCs cultured at lower O2 level were shown to be more potent than
a composition prepared from normoxic cells. A comparative characterization of
protein pattern and identification of individual components done by a cytokine
assay and proteomics analysis of protein compositions revealed that even moderate
hypoxia produces discrete changes in the expression of various subsets of proteins
responsible for intracellular respiration and cell signaling. The application
of proteins prepared from MSCs grown in vitro at reduced oxygen tension significantly
accelerates healing process in damaged liver tissue. The proteomics data obtained
for different preparations offer new information about the potential candidates
in the MSCs protein repertoire sensitive to oxygen tension in culture medium,
which can be involved in the generalized mechanisms the cells use to respond to
acute liver failure.
acknowledgement: The studies were supported by the Austrian Federal Ministry of Economy,
Family and Youth through the initiative “Laura Bassi Centres of Expertise” funding
the Center of Optimized Structural Stud-ies, grant No. 253275
article_processing_charge: Yes (via OA deal)
author:
- first_name: Andrey Alexandrovich
full_name: Temnov, Andrey Alexandrovich
last_name: Temnov
- first_name: Konstantin Arkadevich
full_name: Rogov, Konstantin Arkadevich
last_name: Rogov
- first_name: Alla Nikolaevna
full_name: Sklifas, Alla Nikolaevna
last_name: Sklifas
- first_name: Elena Valerievna
full_name: Klychnikova, Elena Valerievna
last_name: Klychnikova
- first_name: Markus
full_name: Hartl, Markus
last_name: Hartl
- first_name: Kristina
full_name: Djinovic-Carugo, Kristina
last_name: Djinovic-Carugo
- first_name: Alexej
full_name: Charnagalov, Alexej
id: 49F06DBA-F248-11E8-B48F-1D18A9856A87
last_name: Charnagalov
citation:
ama: Temnov AA, Rogov KA, Sklifas AN, et al. Protective properties of the cultured
stem cell proteome studied in an animal model of acetaminophen-induced acute liver
failure. Molecular Biology Reports. 2019. doi:10.1007/s11033-019-04765-z
apa: Temnov, A. A., Rogov, K. A., Sklifas, A. N., Klychnikova, E. V., Hartl, M.,
Djinovic-Carugo, K., & Charnagalov, A. (2019). Protective properties of the
cultured stem cell proteome studied in an animal model of acetaminophen-induced
acute liver failure. Molecular Biology Reports. Springer. https://doi.org/10.1007/s11033-019-04765-z
chicago: Temnov, Andrey Alexandrovich, Konstantin Arkadevich Rogov, Alla Nikolaevna
Sklifas, Elena Valerievna Klychnikova, Markus Hartl, Kristina Djinovic-Carugo,
and Alexej Charnagalov. “Protective Properties of the Cultured Stem Cell Proteome
Studied in an Animal Model of Acetaminophen-Induced Acute Liver Failure.” Molecular
Biology Reports. Springer, 2019. https://doi.org/10.1007/s11033-019-04765-z.
ieee: A. A. Temnov et al., “Protective properties of the cultured stem cell
proteome studied in an animal model of acetaminophen-induced acute liver failure,”
Molecular Biology Reports. Springer, 2019.
ista: Temnov AA, Rogov KA, Sklifas AN, Klychnikova EV, Hartl M, Djinovic-Carugo
K, Charnagalov A. 2019. Protective properties of the cultured stem cell proteome
studied in an animal model of acetaminophen-induced acute liver failure. Molecular
Biology Reports.
mla: Temnov, Andrey Alexandrovich, et al. “Protective Properties of the Cultured
Stem Cell Proteome Studied in an Animal Model of Acetaminophen-Induced Acute Liver
Failure.” Molecular Biology Reports, Springer, 2019, doi:10.1007/s11033-019-04765-z.
short: A.A. Temnov, K.A. Rogov, A.N. Sklifas, E.V. Klychnikova, M. Hartl, K. Djinovic-Carugo,
A. Charnagalov, Molecular Biology Reports (2019).
date_created: 2019-04-28T21:59:14Z
date_published: 2019-04-12T00:00:00Z
date_updated: 2023-08-25T10:14:26Z
day: '12'
ddc:
- '570'
department:
- _id: LeSa
doi: 10.1007/s11033-019-04765-z
external_id:
isi:
- '000470332600049'
file:
- access_level: open_access
checksum: 45bf040bbce1cea274f6013fa18ba21b
content_type: application/pdf
creator: dernst
date_created: 2019-04-30T09:52:36Z
date_updated: 2020-07-14T12:47:28Z
file_id: '6362'
file_name: 2019_MolecularBioReport_Temnov.pdf
file_size: 1948014
relation: main_file
file_date_updated: 2020-07-14T12:47:28Z
has_accepted_license: '1'
isi: 1
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
publication: Molecular Biology Reports
publication_identifier:
eissn:
- '15734978'
issn:
- '03014851'
publication_status: published
publisher: Springer
quality_controlled: '1'
scopus_import: '1'
status: public
title: Protective properties of the cultured stem cell proteome studied in an animal
model of acetaminophen-induced acute liver failure
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
year: '2019'
...
---
_id: '6348'
abstract:
- lang: eng
text: 'High-speed optical telecommunication is enabled by wavelength-division multiplexing,
whereby hundreds of individually stabilized lasers encode information within a
single-mode optical fibre. Higher bandwidths require higher total optical power,
but the power sent into the fibre is limited by optical nonlinearities within
the fibre, and energy consumption by the light sources starts to become a substantial
cost factor1. Optical frequency combs have been suggested to remedy this problem
by generating numerous discrete, equidistant laser lines within a monolithic device;
however, at present their stability and coherence allow them to operate only within
small parameter ranges2,3,4. Here we show that a broadband frequency comb realized
through the electro-optic effect within a high-quality whispering-gallery-mode
resonator can operate at low microwave and optical powers. Unlike the usual third-order
Kerr nonlinear optical frequency combs, our combs rely on the second-order nonlinear
effect, which is much more efficient. Our result uses a fixed microwave signal
that is mixed with an optical-pump signal to generate a coherent frequency comb
with a precisely determined carrier separation. The resonant enhancement enables
us to work with microwave powers that are three orders of magnitude lower than
those in commercially available devices. We emphasize the practical relevance
of our results to high rates of data communication. To circumvent the limitations
imposed by nonlinear effects in optical communication fibres, one has to solve
two problems: to provide a compact and fully integrated, yet high-quality and
coherent, frequency comb generator; and to calculate nonlinear signal propagation
in real time5. We report a solution to the first problem.'
article_processing_charge: No
author:
- first_name: Alfredo R
full_name: Rueda Sanchez, Alfredo R
id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
last_name: Rueda Sanchez
orcid: 0000-0001-6249-5860
- first_name: Florian
full_name: Sedlmeir, Florian
last_name: Sedlmeir
- first_name: Madhuri
full_name: Kumari, Madhuri
last_name: Kumari
- first_name: Gerd
full_name: Leuchs, Gerd
last_name: Leuchs
- first_name: Harald G.L.
full_name: Schwefel, Harald G.L.
last_name: Schwefel
citation:
ama: Rueda Sanchez AR, Sedlmeir F, Kumari M, Leuchs G, Schwefel HGL. Resonant electro-optic
frequency comb. Nature. 2019;568(7752):378-381. doi:10.1038/s41586-019-1110-x
apa: Rueda Sanchez, A. R., Sedlmeir, F., Kumari, M., Leuchs, G., & Schwefel,
H. G. L. (2019). Resonant electro-optic frequency comb. Nature. Springer
Nature. https://doi.org/10.1038/s41586-019-1110-x
chicago: Rueda Sanchez, Alfredo R, Florian Sedlmeir, Madhuri Kumari, Gerd Leuchs,
and Harald G.L. Schwefel. “Resonant Electro-Optic Frequency Comb.” Nature.
Springer Nature, 2019. https://doi.org/10.1038/s41586-019-1110-x.
ieee: A. R. Rueda Sanchez, F. Sedlmeir, M. Kumari, G. Leuchs, and H. G. L. Schwefel,
“Resonant electro-optic frequency comb,” Nature, vol. 568, no. 7752. Springer
Nature, pp. 378–381, 2019.
ista: Rueda Sanchez AR, Sedlmeir F, Kumari M, Leuchs G, Schwefel HGL. 2019. Resonant
electro-optic frequency comb. Nature. 568(7752), 378–381.
mla: Rueda Sanchez, Alfredo R., et al. “Resonant Electro-Optic Frequency Comb.”
Nature, vol. 568, no. 7752, Springer Nature, 2019, pp. 378–81, doi:10.1038/s41586-019-1110-x.
short: A.R. Rueda Sanchez, F. Sedlmeir, M. Kumari, G. Leuchs, H.G.L. Schwefel, Nature
568 (2019) 378–381.
date_created: 2019-04-28T21:59:13Z
date_published: 2019-04-18T00:00:00Z
date_updated: 2023-08-25T10:15:25Z
day: '18'
department:
- _id: JoFi
doi: 10.1038/s41586-019-1110-x
external_id:
arxiv:
- '1808.10608'
isi:
- '000464950700053'
intvolume: ' 568'
isi: 1
issue: '7752'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1808.10608
month: '04'
oa: 1
oa_version: Preprint
page: 378-381
publication: Nature
publication_identifier:
eissn:
- '14764687'
issn:
- '00280836'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1038/s41586-019-1220-5
scopus_import: '1'
status: public
title: Resonant electro-optic frequency comb
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 568
year: '2019'
...