--- _id: '672' abstract: - lang: eng text: Trafficking cells frequently transmigrate through epithelial and endothelial monolayers. How monolayers cooperate with the penetrating cells to support their transit is poorly understood. We studied dendritic cell (DC) entry into lymphatic capillaries as a model system for transendothelial migration. We find that the chemokine CCL21, which is the decisive guidance cue for intravasation, mainly localizes in the trans-Golgi network and intracellular vesicles of lymphatic endothelial cells. Upon DC transmigration, these Golgi deposits disperse and CCL21 becomes extracellularly enriched at the sites of endothelial cell-cell junctions. When we reconstitute the transmigration process in vitro, we find that secretion of CCL21-positive vesicles is triggered by a DC contact-induced calcium signal, and selective calcium chelation in lymphatic endothelium attenuates transmigration. Altogether, our data demonstrate a chemokine-mediated feedback between DCs and lymphatic endothelium, which facilitates transendothelial migration. article_processing_charge: Yes author: - first_name: Kari full_name: Vaahtomeri, Kari id: 368EE576-F248-11E8-B48F-1D18A9856A87 last_name: Vaahtomeri orcid: 0000-0001-7829-3518 - first_name: Markus full_name: Brown, Markus id: 3DAB9AFC-F248-11E8-B48F-1D18A9856A87 last_name: Brown - first_name: Robert full_name: Hauschild, Robert id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87 last_name: Hauschild orcid: 0000-0001-9843-3522 - first_name: Ingrid full_name: De Vries, Ingrid id: 4C7D837E-F248-11E8-B48F-1D18A9856A87 last_name: De Vries - first_name: Alexander F full_name: Leithner, Alexander F id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87 last_name: Leithner - first_name: Matthias full_name: Mehling, Matthias id: 3C23B994-F248-11E8-B48F-1D18A9856A87 last_name: Mehling orcid: 0000-0001-8599-1226 - first_name: Walter full_name: Kaufmann, Walter id: 3F99E422-F248-11E8-B48F-1D18A9856A87 last_name: Kaufmann orcid: 0000-0001-9735-5315 - 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: Vaahtomeri K, Brown M, Hauschild R, et al. Locally triggered release of the chemokine CCL21 promotes dendritic cell transmigration across lymphatic endothelia. Cell Reports. 2017;19(5):902-909. doi:10.1016/j.celrep.2017.04.027 apa: Vaahtomeri, K., Brown, M., Hauschild, R., de Vries, I., Leithner, A. F., Mehling, M., … Sixt, M. K. (2017). Locally triggered release of the chemokine CCL21 promotes dendritic cell transmigration across lymphatic endothelia. Cell Reports. Cell Press. https://doi.org/10.1016/j.celrep.2017.04.027 chicago: Vaahtomeri, Kari, Markus Brown, Robert Hauschild, Ingrid de Vries, Alexander F Leithner, Matthias Mehling, Walter Kaufmann, and Michael K Sixt. “Locally Triggered Release of the Chemokine CCL21 Promotes Dendritic Cell Transmigration across Lymphatic Endothelia.” Cell Reports. Cell Press, 2017. https://doi.org/10.1016/j.celrep.2017.04.027. ieee: K. Vaahtomeri et al., “Locally triggered release of the chemokine CCL21 promotes dendritic cell transmigration across lymphatic endothelia,” Cell Reports, vol. 19, no. 5. Cell Press, pp. 902–909, 2017. ista: Vaahtomeri K, Brown M, Hauschild R, de Vries I, Leithner AF, Mehling M, Kaufmann W, Sixt MK. 2017. Locally triggered release of the chemokine CCL21 promotes dendritic cell transmigration across lymphatic endothelia. Cell Reports. 19(5), 902–909. mla: Vaahtomeri, Kari, et al. “Locally Triggered Release of the Chemokine CCL21 Promotes Dendritic Cell Transmigration across Lymphatic Endothelia.” Cell Reports, vol. 19, no. 5, Cell Press, 2017, pp. 902–09, doi:10.1016/j.celrep.2017.04.027. short: K. Vaahtomeri, M. Brown, R. Hauschild, I. de Vries, A.F. Leithner, M. Mehling, W. Kaufmann, M.K. Sixt, Cell Reports 19 (2017) 902–909. date_created: 2018-12-11T11:47:50Z date_published: 2017-05-02T00:00:00Z date_updated: 2023-02-23T12:50:09Z day: '02' ddc: - '570' department: - _id: MiSi - _id: Bio - _id: EM-Fac doi: 10.1016/j.celrep.2017.04.027 ec_funded: 1 file: - access_level: open_access checksum: 8fdddaab1f1d76a6ec9ca94dcb6b07a2 content_type: application/pdf creator: system date_created: 2018-12-12T10:14:54Z date_updated: 2020-07-14T12:47:38Z file_id: '5109' file_name: IST-2017-900-v1+1_1-s2.0-S2211124717305211-main.pdf file_size: 2248814 relation: main_file file_date_updated: 2020-07-14T12:47:38Z has_accepted_license: '1' intvolume: ' 19' issue: '5' language: - iso: eng month: '05' oa: 1 oa_version: Published Version page: 902 - 909 project: - _id: 25A603A2-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '281556' name: Cytoskeletal force generation and force transduction of migrating leukocytes (EU) - _id: 25A8E5EA-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Y 564-B12 name: Cytoskeletal force generation and transduction of leukocytes (FWF) publication: Cell Reports publication_identifier: issn: - '22111247' publication_status: published publisher: Cell Press publist_id: '7052' pubrep_id: '900' quality_controlled: '1' scopus_import: 1 status: public title: Locally triggered release of the chemokine CCL21 promotes dendritic cell transmigration across lymphatic endothelia 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: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 19 year: '2017' ... --- _id: '674' abstract: - lang: eng text: Navigation of cells along gradients of guidance cues is a determining step in many developmental and immunological processes. Gradients can either be soluble or immobilized to tissues as demonstrated for the haptotactic migration of dendritic cells (DCs) toward higher concentrations of immobilized chemokine CCL21. To elucidate how gradient characteristics govern cellular response patterns, we here introduce an in vitro system allowing to track migratory responses of DCs to precisely controlled immobilized gradients of CCL21. We find that haptotactic sensing depends on the absolute CCL21 concentration and local steepness of the gradient, consistent with a scenario where DC directionality is governed by the signal-to-noise ratio of CCL21 binding to the receptor CCR7. We find that the conditions for optimal DC guidance are perfectly provided by the CCL21 gradients we measure in vivo. Furthermore, we find that CCR7 signal termination by the G-protein-coupled receptor kinase 6 (GRK6) is crucial for haptotactic but dispensable for chemotactic CCL21 gradient sensing in vitro and confirm those observations in vivo. These findings suggest that stable, tissue-bound CCL21 gradients as sustainable “roads” ensure optimal guidance in vivo. author: - first_name: Jan full_name: Schwarz, Jan id: 346C1EC6-F248-11E8-B48F-1D18A9856A87 last_name: Schwarz - first_name: Veronika full_name: Bierbaum, Veronika id: 3FD04378-F248-11E8-B48F-1D18A9856A87 last_name: Bierbaum - first_name: Kari full_name: Vaahtomeri, Kari id: 368EE576-F248-11E8-B48F-1D18A9856A87 last_name: Vaahtomeri orcid: 0000-0001-7829-3518 - first_name: Robert full_name: Hauschild, Robert id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87 last_name: Hauschild orcid: 0000-0001-9843-3522 - first_name: Markus full_name: Brown, Markus id: 3DAB9AFC-F248-11E8-B48F-1D18A9856A87 last_name: Brown - first_name: Ingrid full_name: De Vries, Ingrid id: 4C7D837E-F248-11E8-B48F-1D18A9856A87 last_name: De Vries - first_name: Alexander F full_name: Leithner, Alexander F id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87 last_name: Leithner - first_name: Anne full_name: Reversat, Anne id: 35B76592-F248-11E8-B48F-1D18A9856A87 last_name: Reversat orcid: 0000-0003-0666-8928 - first_name: Jack full_name: Merrin, Jack id: 4515C308-F248-11E8-B48F-1D18A9856A87 last_name: Merrin orcid: 0000-0001-5145-4609 - first_name: Teresa full_name: Tarrant, Teresa last_name: Tarrant - first_name: Tobias full_name: Bollenbach, Tobias id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87 last_name: Bollenbach orcid: 0000-0003-4398-476X - 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: Schwarz J, Bierbaum V, Vaahtomeri K, et al. Dendritic cells interpret haptotactic chemokine gradients in a manner governed by signal to noise ratio and dependent on GRK6. Current Biology. 2017;27(9):1314-1325. doi:10.1016/j.cub.2017.04.004 apa: Schwarz, J., Bierbaum, V., Vaahtomeri, K., Hauschild, R., Brown, M., de Vries, I., … Sixt, M. K. (2017). Dendritic cells interpret haptotactic chemokine gradients in a manner governed by signal to noise ratio and dependent on GRK6. Current Biology. Cell Press. https://doi.org/10.1016/j.cub.2017.04.004 chicago: Schwarz, Jan, Veronika Bierbaum, Kari Vaahtomeri, Robert Hauschild, Markus Brown, Ingrid de Vries, Alexander F Leithner, et al. “Dendritic Cells Interpret Haptotactic Chemokine Gradients in a Manner Governed by Signal to Noise Ratio and Dependent on GRK6.” Current Biology. Cell Press, 2017. https://doi.org/10.1016/j.cub.2017.04.004. ieee: J. Schwarz et al., “Dendritic cells interpret haptotactic chemokine gradients in a manner governed by signal to noise ratio and dependent on GRK6,” Current Biology, vol. 27, no. 9. Cell Press, pp. 1314–1325, 2017. ista: Schwarz J, Bierbaum V, Vaahtomeri K, Hauschild R, Brown M, de Vries I, Leithner AF, Reversat A, Merrin J, Tarrant T, Bollenbach MT, Sixt MK. 2017. Dendritic cells interpret haptotactic chemokine gradients in a manner governed by signal to noise ratio and dependent on GRK6. Current Biology. 27(9), 1314–1325. mla: Schwarz, Jan, et al. “Dendritic Cells Interpret Haptotactic Chemokine Gradients in a Manner Governed by Signal to Noise Ratio and Dependent on GRK6.” Current Biology, vol. 27, no. 9, Cell Press, 2017, pp. 1314–25, doi:10.1016/j.cub.2017.04.004. short: J. Schwarz, V. Bierbaum, K. Vaahtomeri, R. Hauschild, M. Brown, I. de Vries, A.F. Leithner, A. Reversat, J. Merrin, T. Tarrant, M.T. Bollenbach, M.K. Sixt, Current Biology 27 (2017) 1314–1325. date_created: 2018-12-11T11:47:51Z date_published: 2017-05-09T00:00:00Z date_updated: 2023-02-23T12:50:44Z day: '09' department: - _id: MiSi - _id: Bio - _id: NanoFab doi: 10.1016/j.cub.2017.04.004 ec_funded: 1 intvolume: ' 27' issue: '9' language: - iso: eng month: '05' oa_version: None page: 1314 - 1325 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25A8E5EA-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Y 564-B12 name: Cytoskeletal force generation and transduction of leukocytes (FWF) publication: Current Biology publication_identifier: issn: - '09609822' publication_status: published publisher: Cell Press publist_id: '7050' quality_controlled: '1' scopus_import: 1 status: public title: Dendritic cells interpret haptotactic chemokine gradients in a manner governed by signal to noise ratio and dependent on GRK6 type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 27 year: '2017' ... --- _id: '677' abstract: - lang: eng text: The INO80 complex (INO80-C) is an evolutionarily conserved nucleosome remodeler that acts in transcription, replication, and genome stability. It is required for resistance against genotoxic agents and is involved in the repair of DNA double-strand breaks (DSBs) by homologous recombination (HR). However, the causes of the HR defect in INO80-C mutant cells are controversial. Here, we unite previous findings using a system to study HR with high spatial resolution in budding yeast. We find that INO80-C has at least two distinct functions during HR—DNA end resection and presynaptic filament formation. Importantly, the second function is linked to the histone variant H2A.Z. In the absence of H2A.Z, presynaptic filament formation and HR are restored in INO80-C-deficient mutants, suggesting that presynaptic filament formation is the crucial INO80-C function during HR. author: - first_name: Claudio full_name: Lademann, Claudio last_name: Lademann - first_name: Jörg full_name: Renkawitz, Jörg id: 3F0587C8-F248-11E8-B48F-1D18A9856A87 last_name: Renkawitz orcid: 0000-0003-2856-3369 - first_name: Boris full_name: Pfander, Boris last_name: Pfander - first_name: Stefan full_name: Jentsch, Stefan last_name: Jentsch citation: ama: Lademann C, Renkawitz J, Pfander B, Jentsch S. The INO80 complex removes H2A.Z to promote presynaptic filament formation during homologous recombination. Cell Reports. 2017;19(7):1294-1303. doi:10.1016/j.celrep.2017.04.051 apa: Lademann, C., Renkawitz, J., Pfander, B., & Jentsch, S. (2017). The INO80 complex removes H2A.Z to promote presynaptic filament formation during homologous recombination. Cell Reports. Cell Press. https://doi.org/10.1016/j.celrep.2017.04.051 chicago: Lademann, Claudio, Jörg Renkawitz, Boris Pfander, and Stefan Jentsch. “The INO80 Complex Removes H2A.Z to Promote Presynaptic Filament Formation during Homologous Recombination.” Cell Reports. Cell Press, 2017. https://doi.org/10.1016/j.celrep.2017.04.051. ieee: C. Lademann, J. Renkawitz, B. Pfander, and S. Jentsch, “The INO80 complex removes H2A.Z to promote presynaptic filament formation during homologous recombination,” Cell Reports, vol. 19, no. 7. Cell Press, pp. 1294–1303, 2017. ista: Lademann C, Renkawitz J, Pfander B, Jentsch S. 2017. The INO80 complex removes H2A.Z to promote presynaptic filament formation during homologous recombination. Cell Reports. 19(7), 1294–1303. mla: Lademann, Claudio, et al. “The INO80 Complex Removes H2A.Z to Promote Presynaptic Filament Formation during Homologous Recombination.” Cell Reports, vol. 19, no. 7, Cell Press, 2017, pp. 1294–303, doi:10.1016/j.celrep.2017.04.051. short: C. Lademann, J. Renkawitz, B. Pfander, S. Jentsch, Cell Reports 19 (2017) 1294–1303. date_created: 2018-12-11T11:47:52Z date_published: 2017-05-16T00:00:00Z date_updated: 2021-01-12T08:08:57Z day: '16' ddc: - '570' department: - _id: MiSi doi: 10.1016/j.celrep.2017.04.051 file: - access_level: open_access checksum: efc7287d9c6354983cb151880e9ad72a content_type: application/pdf creator: system date_created: 2018-12-12T10:15:48Z date_updated: 2020-07-14T12:47:40Z file_id: '5171' file_name: IST-2017-899-v1+1_1-s2.0-S2211124717305454-main.pdf file_size: 3005610 relation: main_file file_date_updated: 2020-07-14T12:47:40Z has_accepted_license: '1' intvolume: ' 19' issue: '7' language: - iso: eng month: '05' oa: 1 oa_version: Published Version page: 1294 - 1303 publication: Cell Reports publication_identifier: issn: - '22111247' publication_status: published publisher: Cell Press publist_id: '7046' pubrep_id: '899' quality_controlled: '1' scopus_import: 1 status: public title: The INO80 complex removes H2A.Z to promote presynaptic filament formation during homologous recombination 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: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 19 year: '2017' ... --- _id: '694' abstract: - lang: eng text: A change regarding the extent of adhesion - hereafter referred to as adhesion plasticity - between adhesive and less-adhesive states of mammalian cells is important for their behavior. To investigate adhesion plasticity, we have selected a stable isogenic subpopulation of human MDA-MB-468 breast carcinoma cells growing in suspension. These suspension cells are unable to re-adhere to various matrices or to contract three-dimensional collagen lattices. By using transcriptome analysis, we identified the focal adhesion protein tensin3 (Tns3) as a determinant of adhesion plasticity. Tns3 is strongly reduced at mRNA and protein levels in suspension cells. Furthermore, by transiently challenging breast cancer cells to grow under non-adherent conditions markedly reduces Tns3 protein expression, which is regained upon re-adhesion. Stable knockdown of Tns3 in parental MDA-MB-468 cells results in defective adhesion, spreading and migration. Tns3-knockdown cells display impaired structure and dynamics of focal adhesion complexes as determined by immunostaining. Restoration of Tns3 protein expression in suspension cells partially rescues adhesion and focal contact composition. Our work identifies Tns3 as a crucial focal adhesion component regulated by, and functionally contributing to, the switch between adhesive and non-adhesive states in MDA-MB-468 cancer cells. article_type: original author: - first_name: Astrid full_name: Veß, Astrid last_name: Veß - first_name: Ulrich full_name: Blache, Ulrich last_name: Blache - first_name: Laura full_name: Leitner, Laura last_name: Leitner - first_name: Angela full_name: Kurz, Angela last_name: Kurz - first_name: Anja full_name: Ehrenpfordt, Anja last_name: Ehrenpfordt - 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: Guido full_name: Posern, Guido last_name: Posern citation: ama: Veß A, Blache U, Leitner L, et al. A dual phenotype of MDA MB 468 cancer cells reveals mutual regulation of tensin3 and adhesion plasticity. Journal of Cell Science. 2017;130(13):2172-2184. doi:10.1242/jcs.200899 apa: Veß, A., Blache, U., Leitner, L., Kurz, A., Ehrenpfordt, A., Sixt, M. K., & Posern, G. (2017). A dual phenotype of MDA MB 468 cancer cells reveals mutual regulation of tensin3 and adhesion plasticity. Journal of Cell Science. Company of Biologists. https://doi.org/10.1242/jcs.200899 chicago: Veß, Astrid, Ulrich Blache, Laura Leitner, Angela Kurz, Anja Ehrenpfordt, Michael K Sixt, and Guido Posern. “A Dual Phenotype of MDA MB 468 Cancer Cells Reveals Mutual Regulation of Tensin3 and Adhesion Plasticity.” Journal of Cell Science. Company of Biologists, 2017. https://doi.org/10.1242/jcs.200899. ieee: A. Veß et al., “A dual phenotype of MDA MB 468 cancer cells reveals mutual regulation of tensin3 and adhesion plasticity,” Journal of Cell Science, vol. 130, no. 13. Company of Biologists, pp. 2172–2184, 2017. ista: Veß A, Blache U, Leitner L, Kurz A, Ehrenpfordt A, Sixt MK, Posern G. 2017. A dual phenotype of MDA MB 468 cancer cells reveals mutual regulation of tensin3 and adhesion plasticity. Journal of Cell Science. 130(13), 2172–2184. mla: Veß, Astrid, et al. “A Dual Phenotype of MDA MB 468 Cancer Cells Reveals Mutual Regulation of Tensin3 and Adhesion Plasticity.” Journal of Cell Science, vol. 130, no. 13, Company of Biologists, 2017, pp. 2172–84, doi:10.1242/jcs.200899. short: A. Veß, U. Blache, L. Leitner, A. Kurz, A. Ehrenpfordt, M.K. Sixt, G. Posern, Journal of Cell Science 130 (2017) 2172–2184. date_created: 2018-12-11T11:47:58Z date_published: 2017-07-01T00:00:00Z date_updated: 2021-01-12T08:09:41Z day: '01' ddc: - '570' department: - _id: MiSi doi: 10.1242/jcs.200899 external_id: pmid: - '28515231' file: - access_level: open_access checksum: 42c81a0a4fc3128883b391c3af3f74bc content_type: application/pdf creator: dernst date_created: 2019-10-24T09:43:56Z date_updated: 2020-07-14T12:47:45Z file_id: '6966' file_name: 2017_CellScience_Vess.pdf file_size: 10847596 relation: main_file file_date_updated: 2020-07-14T12:47:45Z has_accepted_license: '1' intvolume: ' 130' issue: '13' language: - iso: eng month: '07' oa: 1 oa_version: Published Version page: 2172 - 2184 pmid: 1 publication: Journal of Cell Science publication_identifier: issn: - '00219533' publication_status: published publisher: Company of Biologists publist_id: '7008' quality_controlled: '1' scopus_import: 1 status: public title: A dual phenotype of MDA MB 468 cancer cells reveals mutual regulation of tensin3 and adhesion plasticity type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 130 year: '2017' ... --- _id: '1161' abstract: - lang: eng text: Coordinated changes of cell shape are often the result of the excitable, wave-like dynamics of the actin cytoskeleton. New work shows that, in migrating cells, protrusion waves arise from mechanochemical crosstalk between adhesion sites, membrane tension and the actin protrusive machinery. article_processing_charge: No author: - first_name: Jan full_name: Müller, Jan id: AD07FDB4-0F61-11EA-8158-C4CC64CEAA8D last_name: Müller - 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: 'Müller J, Sixt MK. Cell migration: Making the waves. Current Biology. 2017;27(1):R24-R25. doi:10.1016/j.cub.2016.11.035' apa: 'Müller, J., & Sixt, M. K. (2017). Cell migration: Making the waves. Current Biology. Cell Press. https://doi.org/10.1016/j.cub.2016.11.035' chicago: 'Müller, Jan, and Michael K Sixt. “Cell Migration: Making the Waves.” Current Biology. Cell Press, 2017. https://doi.org/10.1016/j.cub.2016.11.035.' ieee: 'J. Müller and M. K. Sixt, “Cell migration: Making the waves,” Current Biology, vol. 27, no. 1. Cell Press, pp. R24–R25, 2017.' ista: 'Müller J, Sixt MK. 2017. Cell migration: Making the waves. Current Biology. 27(1), R24–R25.' mla: 'Müller, Jan, and Michael K. Sixt. “Cell Migration: Making the Waves.” Current Biology, vol. 27, no. 1, Cell Press, 2017, pp. R24–25, doi:10.1016/j.cub.2016.11.035.' short: J. Müller, M.K. Sixt, Current Biology 27 (2017) R24–R25. date_created: 2018-12-11T11:50:29Z date_published: 2017-01-09T00:00:00Z date_updated: 2023-09-20T11:28:19Z day: '09' department: - _id: MiSi doi: 10.1016/j.cub.2016.11.035 external_id: isi: - '000391902500010' intvolume: ' 27' isi: 1 issue: '1' language: - iso: eng month: '01' oa_version: None page: R24 - R25 publication: Current Biology publication_identifier: issn: - '09609822' publication_status: published publisher: Cell Press publist_id: '6197' quality_controlled: '1' scopus_import: '1' status: public title: 'Cell migration: Making the waves' type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 27 year: '2017' ... --- _id: '727' abstract: - lang: eng text: 'Actin filaments polymerizing against membranes power endocytosis, vesicular traffic, and cell motility. In vitro reconstitution studies suggest that the structure and the dynamics of actin networks respond to mechanical forces. We demonstrate that lamellipodial actin of migrating cells responds to mechanical load when membrane tension is modulated. In a steady state, migrating cell filaments assume the canonical dendritic geometry, defined by Arp2/3-generated 70° branch points. Increased tension triggers a dense network with a broadened range of angles, whereas decreased tension causes a shift to a sparse configuration dominated by filaments growing perpendicularly to the plasma membrane. We show that these responses emerge from the geometry of branched actin: when load per filament decreases, elongation speed increases and perpendicular filaments gradually outcompete others because they polymerize the shortest distance to the membrane, where they are protected from capping. This network-intrinsic geometrical adaptation mechanism tunes protrusive force in response to mechanical load.' acknowledged_ssus: - _id: ScienComp article_processing_charge: No author: - first_name: Jan full_name: Mueller, Jan last_name: Mueller - first_name: Gregory full_name: Szep, Gregory id: 4BFB7762-F248-11E8-B48F-1D18A9856A87 last_name: Szep - first_name: Maria full_name: Nemethova, Maria id: 34E27F1C-F248-11E8-B48F-1D18A9856A87 last_name: Nemethova - first_name: Ingrid full_name: De Vries, Ingrid id: 4C7D837E-F248-11E8-B48F-1D18A9856A87 last_name: De Vries - first_name: Arnon full_name: Lieber, Arnon last_name: Lieber - first_name: Christoph full_name: Winkler, Christoph last_name: Winkler - first_name: Karsten full_name: Kruse, Karsten last_name: Kruse - first_name: John full_name: Small, John last_name: Small - first_name: Christian full_name: Schmeiser, Christian last_name: Schmeiser - first_name: Kinneret full_name: Keren, Kinneret last_name: Keren - 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: Mueller J, Szep G, Nemethova M, et al. Load adaptation of lamellipodial actin networks. Cell. 2017;171(1):188-200. doi:10.1016/j.cell.2017.07.051 apa: Mueller, J., Szep, G., Nemethova, M., de Vries, I., Lieber, A., Winkler, C., … Sixt, M. K. (2017). Load adaptation of lamellipodial actin networks. Cell. Cell Press. https://doi.org/10.1016/j.cell.2017.07.051 chicago: Mueller, Jan, Gregory Szep, Maria Nemethova, Ingrid de Vries, Arnon Lieber, Christoph Winkler, Karsten Kruse, et al. “Load Adaptation of Lamellipodial Actin Networks.” Cell. Cell Press, 2017. https://doi.org/10.1016/j.cell.2017.07.051. ieee: J. Mueller et al., “Load adaptation of lamellipodial actin networks,” Cell, vol. 171, no. 1. Cell Press, pp. 188–200, 2017. ista: Mueller J, Szep G, Nemethova M, de Vries I, Lieber A, Winkler C, Kruse K, Small J, Schmeiser C, Keren K, Hauschild R, Sixt MK. 2017. Load adaptation of lamellipodial actin networks. Cell. 171(1), 188–200. mla: Mueller, Jan, et al. “Load Adaptation of Lamellipodial Actin Networks.” Cell, vol. 171, no. 1, Cell Press, 2017, pp. 188–200, doi:10.1016/j.cell.2017.07.051. short: J. Mueller, G. Szep, M. Nemethova, I. de Vries, A. Lieber, C. Winkler, K. Kruse, J. Small, C. Schmeiser, K. Keren, R. Hauschild, M.K. Sixt, Cell 171 (2017) 188–200. date_created: 2018-12-11T11:48:10Z date_published: 2017-09-21T00:00:00Z date_updated: 2023-09-28T11:33:49Z day: '21' department: - _id: MiSi - _id: Bio doi: 10.1016/j.cell.2017.07.051 ec_funded: 1 external_id: isi: - '000411331800020' intvolume: ' 171' isi: 1 issue: '1' language: - iso: eng month: '09' oa_version: None page: 188 - 200 project: - _id: 25AD6156-B435-11E9-9278-68D0E5697425 grant_number: LS13-029 name: Modeling of Polarization and Motility of Leukocytes in Three-Dimensional Environments - _id: 25A603A2-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '281556' name: Cytoskeletal force generation and force transduction of migrating leukocytes (EU) publication: Cell publication_identifier: issn: - '00928674' publication_status: published publisher: Cell Press publist_id: '6951' quality_controlled: '1' scopus_import: '1' status: public title: Load adaptation of lamellipodial actin networks type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 171 year: '2017' ... --- _id: '5567' abstract: - lang: eng text: Immunological synapse DC-Tcells 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 citation: ama: Leithner AF. Immunological synapse DC-Tcells. 2017. doi:10.15479/AT:ISTA:71 apa: Leithner, A. F. (2017). Immunological synapse DC-Tcells. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:71 chicago: Leithner, Alexander F. “Immunological Synapse DC-Tcells.” Institute of Science and Technology Austria, 2017. https://doi.org/10.15479/AT:ISTA:71. ieee: A. F. Leithner, “Immunological synapse DC-Tcells.” Institute of Science and Technology Austria, 2017. ista: Leithner AF. 2017. Immunological synapse DC-Tcells, Institute of Science and Technology Austria, 10.15479/AT:ISTA:71. mla: Leithner, Alexander F. Immunological Synapse DC-Tcells. Institute of Science and Technology Austria, 2017, doi:10.15479/AT:ISTA:71. short: A.F. Leithner, (2017). datarep_id: '71' date_created: 2018-12-12T12:31:34Z date_published: 2017-08-09T00:00:00Z date_updated: 2024-02-21T13:47:00Z day: '09' ddc: - '570' department: - _id: MiSi doi: 10.15479/AT:ISTA:71 file: - access_level: open_access checksum: 3d6942d47d0737d064706b5728c4d8c8 content_type: video/x-msvideo creator: system date_created: 2018-12-12T13:02:47Z date_updated: 2020-07-14T12:47:04Z file_id: '5612' file_name: IST-2017-71-v1+1_Synapse_1.avi file_size: 236204020 relation: main_file - access_level: open_access checksum: 4850006c047b0147a9e85b3c2f6f0af4 content_type: video/x-msvideo creator: system date_created: 2018-12-12T13:02:51Z date_updated: 2020-07-14T12:47:04Z file_id: '5613' file_name: IST-2017-71-v1+2_Synapse_2.avi file_size: 226232496 relation: main_file file_date_updated: 2020-07-14T12:47:04Z has_accepted_license: '1' keyword: - Immunological synapse license: https://creativecommons.org/publicdomain/zero/1.0/ month: '08' oa: 1 oa_version: Published Version publisher: Institute of Science and Technology Austria status: public title: Immunological synapse DC-Tcells tmp: image: /images/cc_0.png legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode name: Creative Commons Public Domain Dedication (CC0 1.0) short: CC0 (1.0) type: research_data user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2017' ... --- _id: '664' abstract: - lang: eng text: Immune cells communicate using cytokine signals, but the quantitative rules of this communication aren't clear. In this issue of Immunity, Oyler-Yaniv et al. (2017) suggest that the distribution of a cytokine within a lymphatic organ is primarily governed by the local density of cells consuming it. 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: Michael K full_name: Sixt, Michael K id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87 last_name: Sixt orcid: 0000-0002-6620-9179 citation: ama: Assen FP, Sixt MK. The dynamic cytokine niche. Immunity. 2017;46(4):519-520. doi:10.1016/j.immuni.2017.04.006 apa: Assen, F. P., & Sixt, M. K. (2017). The dynamic cytokine niche. Immunity. Cell Press. https://doi.org/10.1016/j.immuni.2017.04.006 chicago: Assen, Frank P, and Michael K Sixt. “The Dynamic Cytokine Niche.” Immunity. Cell Press, 2017. https://doi.org/10.1016/j.immuni.2017.04.006. ieee: F. P. Assen and M. K. Sixt, “The dynamic cytokine niche,” Immunity, vol. 46, no. 4. Cell Press, pp. 519–520, 2017. ista: Assen FP, Sixt MK. 2017. The dynamic cytokine niche. Immunity. 46(4), 519–520. mla: Assen, Frank P., and Michael K. Sixt. “The Dynamic Cytokine Niche.” Immunity, vol. 46, no. 4, Cell Press, 2017, pp. 519–20, doi:10.1016/j.immuni.2017.04.006. short: F.P. Assen, M.K. Sixt, Immunity 46 (2017) 519–520. date_created: 2018-12-11T11:47:47Z date_published: 2017-04-18T00:00:00Z date_updated: 2024-03-28T23:30:09Z day: '18' department: - _id: MiSi doi: 10.1016/j.immuni.2017.04.006 intvolume: ' 46' issue: '4' language: - iso: eng month: '04' oa_version: None page: 519 - 520 publication: Immunity publication_identifier: issn: - '10747613' publication_status: published publisher: Cell Press publist_id: '7065' quality_controlled: '1' related_material: record: - id: '6947' relation: dissertation_contains status: public scopus_import: 1 status: public title: The dynamic cytokine niche type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 46 year: '2017' ... --- _id: '679' abstract: - lang: eng text: Protective responses against pathogens require a rapid mobilization of resting neutrophils and the timely removal of activated ones. Neutrophils are exceptionally short-lived leukocytes, yet it remains unclear whether the lifespan of pathogen-engaged neutrophils is regulated differently from that in the circulating steady-state pool. Here, we have found that under homeostatic conditions, the mRNA-destabilizing protein tristetraprolin (TTP) regulates apoptosis and the numbers of activated infiltrating murine neutrophils but not neutrophil cellularity. Activated TTP-deficient neutrophils exhibited decreased apoptosis and enhanced accumulation at the infection site. In the context of myeloid-specific deletion of Ttp, the potentiation of neutrophil deployment protected mice against lethal soft tissue infection with Streptococcus pyogenes and prevented bacterial dissemination. Neutrophil transcriptome analysis revealed that decreased apoptosis of TTP-deficient neutrophils was specifically associated with elevated expression of myeloid cell leukemia 1 (Mcl1) but not other antiapoptotic B cell leukemia/ lymphoma 2 (Bcl2) family members. Higher Mcl1 expression resulted from stabilization of Mcl1 mRNA in the absence of TTP. The low apoptosis rate of infiltrating TTP-deficient neutrophils was comparable to that of transgenic Mcl1-overexpressing neutrophils. Our study demonstrates that posttranscriptional gene regulation by TTP schedules the termination of the antimicrobial engagement of neutrophils. The balancing role of TTP comes at the cost of an increased risk of bacterial infections. acknowledgement: This work was supported by grants from the Austrian Science Fund (FWF) (P27538-B21, I1621-B22, and SFB 43, to PK); by funding from the European Union Seventh Framework Programme Marie Curie Initial Training Networks (FP7-PEOPLE-2012-ITN) for the project INBIONET (INfection BIOlogy Training NETwork under grant agreement PITN-GA-2012-316682; and by a joint research cluster initiative of the University of Vienna and the Medical University of Vienna. author: - first_name: Florian full_name: Ebner, Florian last_name: Ebner - first_name: Vitaly full_name: Sedlyarov, Vitaly last_name: Sedlyarov - first_name: Saren full_name: Tasciyan, Saren id: 4323B49C-F248-11E8-B48F-1D18A9856A87 last_name: Tasciyan orcid: 0000-0003-1671-393X - first_name: Masa full_name: Ivin, Masa last_name: Ivin - first_name: Franz full_name: Kratochvill, Franz last_name: Kratochvill - first_name: Nina full_name: Gratz, Nina last_name: Gratz - first_name: Lukas full_name: Kenner, Lukas last_name: Kenner - first_name: Andreas full_name: Villunger, Andreas last_name: Villunger - 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: Pavel full_name: Kovarik, Pavel last_name: Kovarik citation: ama: Ebner F, Sedlyarov V, Tasciyan S, et al. The RNA-binding protein tristetraprolin schedules apoptosis of pathogen-engaged neutrophils during bacterial infection. The Journal of Clinical Investigation. 2017;127(6):2051-2065. doi:10.1172/JCI80631 apa: Ebner, F., Sedlyarov, V., Tasciyan, S., Ivin, M., Kratochvill, F., Gratz, N., … Kovarik, P. (2017). The RNA-binding protein tristetraprolin schedules apoptosis of pathogen-engaged neutrophils during bacterial infection. The Journal of Clinical Investigation. American Society for Clinical Investigation. https://doi.org/10.1172/JCI80631 chicago: Ebner, Florian, Vitaly Sedlyarov, Saren Tasciyan, Masa Ivin, Franz Kratochvill, Nina Gratz, Lukas Kenner, Andreas Villunger, Michael K Sixt, and Pavel Kovarik. “The RNA-Binding Protein Tristetraprolin Schedules Apoptosis of Pathogen-Engaged Neutrophils during Bacterial Infection.” The Journal of Clinical Investigation. American Society for Clinical Investigation, 2017. https://doi.org/10.1172/JCI80631. ieee: F. Ebner et al., “The RNA-binding protein tristetraprolin schedules apoptosis of pathogen-engaged neutrophils during bacterial infection,” The Journal of Clinical Investigation, vol. 127, no. 6. American Society for Clinical Investigation, pp. 2051–2065, 2017. ista: Ebner F, Sedlyarov V, Tasciyan S, Ivin M, Kratochvill F, Gratz N, Kenner L, Villunger A, Sixt MK, Kovarik P. 2017. The RNA-binding protein tristetraprolin schedules apoptosis of pathogen-engaged neutrophils during bacterial infection. The Journal of Clinical Investigation. 127(6), 2051–2065. mla: Ebner, Florian, et al. “The RNA-Binding Protein Tristetraprolin Schedules Apoptosis of Pathogen-Engaged Neutrophils during Bacterial Infection.” The Journal of Clinical Investigation, vol. 127, no. 6, American Society for Clinical Investigation, 2017, pp. 2051–65, doi:10.1172/JCI80631. short: F. Ebner, V. Sedlyarov, S. Tasciyan, M. Ivin, F. Kratochvill, N. Gratz, L. Kenner, A. Villunger, M.K. Sixt, P. Kovarik, The Journal of Clinical Investigation 127 (2017) 2051–2065. date_created: 2018-12-11T11:47:53Z date_published: 2017-06-01T00:00:00Z date_updated: 2024-03-28T23:30:23Z day: '01' department: - _id: MiSi doi: 10.1172/JCI80631 external_id: pmid: - '28504646' intvolume: ' 127' issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5451238/ month: '06' oa: 1 oa_version: Submitted Version page: 2051 - 2065 pmid: 1 project: - _id: 25985A36-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: T00817-B21 name: The biochemical basis of PAR polarization - _id: 25E9AF9E-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P27201-B22 name: Revealing the mechanisms underlying drug interactions publication: The Journal of Clinical Investigation publication_identifier: issn: - '00219738' publication_status: published publisher: American Society for Clinical Investigation publist_id: '7038' quality_controlled: '1' related_material: record: - id: '12401' relation: dissertation_contains status: public scopus_import: 1 status: public title: The RNA-binding protein tristetraprolin schedules apoptosis of pathogen-engaged neutrophils during bacterial infection type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 127 year: '2017' ... --- _id: '1137' abstract: - lang: eng text: RASGRP1 is an important guanine nucleotide exchange factor and activator of the RAS-MAPK pathway following T cell antigen receptor (TCR) signaling. The consequences of RASGRP1 mutations in humans are unknown. In a patient with recurrent bacterial and viral infections, born to healthy consanguineous parents, we used homozygosity mapping and exome sequencing to identify a biallelic stop-gain variant in RASGRP1. This variant segregated perfectly with the disease and has not been reported in genetic databases. RASGRP1 deficiency was associated in T cells and B cells with decreased phosphorylation of the extracellular-signal-regulated serine kinase ERK, which was restored following expression of wild-type RASGRP1. RASGRP1 deficiency also resulted in defective proliferation, activation and motility of T cells and B cells. RASGRP1-deficient natural killer (NK) cells exhibited impaired cytotoxicity with defective granule convergence and actin accumulation. Interaction proteomics identified the dynein light chain DYNLL1 as interacting with RASGRP1, which links RASGRP1 to cytoskeletal dynamics. RASGRP1-deficient cells showed decreased activation of the GTPase RhoA. Treatment with lenalidomide increased RhoA activity and reversed the migration and activation defects of RASGRP1-deficient lymphocytes. article_processing_charge: No article_type: original author: - first_name: Elisabeth full_name: Salzer, Elisabeth last_name: Salzer - first_name: Deniz full_name: Çaǧdaş, Deniz last_name: Çaǧdaş - first_name: Miroslav full_name: Hons, Miroslav id: 4167FE56-F248-11E8-B48F-1D18A9856A87 last_name: Hons orcid: 0000-0002-6625-3348 - first_name: Emily full_name: Mace, Emily last_name: Mace - first_name: Wojciech full_name: Garncarz, Wojciech last_name: Garncarz - first_name: Oezlem full_name: Petronczki, Oezlem last_name: Petronczki - first_name: René full_name: Platzer, René last_name: Platzer - first_name: Laurène full_name: Pfajfer, Laurène last_name: Pfajfer - first_name: Ivan full_name: Bilic, Ivan last_name: Bilic - first_name: Sol full_name: Ban, Sol last_name: Ban - first_name: Katharina full_name: Willmann, Katharina last_name: Willmann - first_name: Malini full_name: Mukherjee, Malini last_name: Mukherjee - first_name: Verena full_name: Supper, Verena last_name: Supper - first_name: Hsiangting full_name: Hsu, Hsiangting last_name: Hsu - first_name: Pinaki full_name: Banerjee, Pinaki last_name: Banerjee - first_name: Papiya full_name: Sinha, Papiya last_name: Sinha - first_name: Fabienne full_name: Mcclanahan, Fabienne last_name: Mcclanahan - first_name: Gerhard full_name: Zlabinger, Gerhard last_name: Zlabinger - first_name: Winfried full_name: Pickl, Winfried last_name: Pickl - first_name: John full_name: Gribben, John last_name: Gribben - first_name: Hannes full_name: Stockinger, Hannes last_name: Stockinger - first_name: Keiryn full_name: Bennett, Keiryn last_name: Bennett - first_name: Johannes full_name: Huppa, Johannes last_name: Huppa - first_name: Loï̈C full_name: Dupré, Loï̈C last_name: Dupré - first_name: Özden full_name: Sanal, Özden last_name: Sanal - first_name: Ulrich full_name: Jäger, Ulrich last_name: Jäger - 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: Ilhan full_name: Tezcan, Ilhan last_name: Tezcan - first_name: Jordan full_name: Orange, Jordan last_name: Orange - first_name: Kaan full_name: Boztug, Kaan last_name: Boztug citation: ama: Salzer E, Çaǧdaş D, Hons M, et al. RASGRP1 deficiency causes immunodeficiency with impaired cytoskeletal dynamics. Nature Immunology. 2016;17(12):1352-1360. doi:10.1038/ni.3575 apa: Salzer, E., Çaǧdaş, D., Hons, M., Mace, E., Garncarz, W., Petronczki, O., … Boztug, K. (2016). RASGRP1 deficiency causes immunodeficiency with impaired cytoskeletal dynamics. Nature Immunology. Nature Publishing Group. https://doi.org/10.1038/ni.3575 chicago: Salzer, Elisabeth, Deniz Çaǧdaş, Miroslav Hons, Emily Mace, Wojciech Garncarz, Oezlem Petronczki, René Platzer, et al. “RASGRP1 Deficiency Causes Immunodeficiency with Impaired Cytoskeletal Dynamics.” Nature Immunology. Nature Publishing Group, 2016. https://doi.org/10.1038/ni.3575. ieee: E. Salzer et al., “RASGRP1 deficiency causes immunodeficiency with impaired cytoskeletal dynamics,” Nature Immunology, vol. 17, no. 12. Nature Publishing Group, pp. 1352–1360, 2016. ista: Salzer E, Çaǧdaş D, Hons M, Mace E, Garncarz W, Petronczki O, Platzer R, Pfajfer L, Bilic I, Ban S, Willmann K, Mukherjee M, Supper V, Hsu H, Banerjee P, Sinha P, Mcclanahan F, Zlabinger G, Pickl W, Gribben J, Stockinger H, Bennett K, Huppa J, Dupré L, Sanal Ö, Jäger U, Sixt MK, Tezcan I, Orange J, Boztug K. 2016. RASGRP1 deficiency causes immunodeficiency with impaired cytoskeletal dynamics. Nature Immunology. 17(12), 1352–1360. mla: Salzer, Elisabeth, et al. “RASGRP1 Deficiency Causes Immunodeficiency with Impaired Cytoskeletal Dynamics.” Nature Immunology, vol. 17, no. 12, Nature Publishing Group, 2016, pp. 1352–60, doi:10.1038/ni.3575. short: E. Salzer, D. Çaǧdaş, M. Hons, E. Mace, W. Garncarz, O. Petronczki, R. Platzer, L. Pfajfer, I. Bilic, S. Ban, K. Willmann, M. Mukherjee, V. Supper, H. Hsu, P. Banerjee, P. Sinha, F. Mcclanahan, G. Zlabinger, W. Pickl, J. Gribben, H. Stockinger, K. Bennett, J. Huppa, L. Dupré, Ö. Sanal, U. Jäger, M.K. Sixt, I. Tezcan, J. Orange, K. Boztug, Nature Immunology 17 (2016) 1352–1360. date_created: 2018-12-11T11:50:21Z date_published: 2016-12-01T00:00:00Z date_updated: 2021-01-12T06:48:33Z day: '01' department: - _id: MiSi doi: 10.1038/ni.3575 external_id: pmid: - '27776107' intvolume: ' 17' issue: '12' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6400263 month: '12' oa: 1 oa_version: Submitted Version page: 1352 - 1360 pmid: 1 publication: Nature Immunology publication_status: published publisher: Nature Publishing Group publist_id: '6221' quality_controlled: '1' scopus_import: 1 status: public title: RASGRP1 deficiency causes immunodeficiency with impaired cytoskeletal dynamics type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 17 year: '2016' ...