--- _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' ...