1
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Tsuji C, Bradshaw M, Allen MF, Jackson ML, Mantell J, Borucu U, Poole AW, Verkade P, Hers I, Paul DM, Dodding MP. CryoET reveals actin filaments within platelet microtubules. Nat Commun 2024; 15:5967. [PMID: 39013865 PMCID: PMC11252303 DOI: 10.1038/s41467-024-50424-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 07/09/2024] [Indexed: 07/18/2024] Open
Abstract
Crosstalk between the actin and microtubule cytoskeletons is important for many cellular processes. Recent studies have shown that microtubules and F-actin can assemble to form a composite structure where F-actin occupies the microtubule lumen. Whether these cytoskeletal hybrids exist in physiological settings and how they are formed is unclear. Here, we show that the short-crossover Class I actin filament previously identified inside microtubules in human HAP1 cells is cofilin-bound F-actin. Lumenal F-actin can be reconstituted in vitro, but cofilin is not essential. Moreover, actin filaments with both cofilin-bound and canonical morphologies reside within human platelet microtubules under physiological conditions. We propose that stress placed upon the microtubule network during motor-driven microtubule looping and sliding may facilitate the incorporation of actin into microtubules.
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Affiliation(s)
- Chisato Tsuji
- School of Biochemistry, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK
| | - Marston Bradshaw
- School of Physiology, Pharmacology and Neuroscience, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK
| | - Megan F Allen
- School of Physiology, Pharmacology and Neuroscience, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK
| | - Molly L Jackson
- School of Physiology, Pharmacology and Neuroscience, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK
| | - Judith Mantell
- School of Biochemistry, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK
| | - Ufuk Borucu
- GW4 Facility for High-Resolution Electron Cryo-Microscopy, University of Bristol, Bristol, UK
| | - Alastair W Poole
- School of Physiology, Pharmacology and Neuroscience, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK
| | - Paul Verkade
- School of Biochemistry, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK
| | - Ingeborg Hers
- School of Physiology, Pharmacology and Neuroscience, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK.
| | - Danielle M Paul
- School of Physiology, Pharmacology and Neuroscience, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK.
| | - Mark P Dodding
- School of Biochemistry, Faculty of Health and Life Sciences, Biomedical Sciences Building, University Walk, University of Bristol, BS8 1TD, Bristol, UK.
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2
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Liu H, Welburn JPI. A circle of life: platelet and megakaryocyte cytoskeleton dynamics in health and disease. Open Biol 2024; 14:240041. [PMID: 38835242 DOI: 10.1098/rsob.240041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 04/24/2024] [Indexed: 06/06/2024] Open
Abstract
Platelets are blood cells derived from megakaryocytes that play a central role in regulating haemostasis and vascular integrity. The microtubule cytoskeleton of megakaryocytes undergoes a critical dynamic reorganization during cycles of endomitosis and platelet biogenesis. Quiescent platelets have a discoid shape maintained by a marginal band composed of microtubule bundles, which undergoes remarkable remodelling during platelet activation, driving shape change and platelet function. Disrupting or enhancing this process can cause platelet dysfunction such as bleeding disorders or thrombosis. However, little is known about the molecular mechanisms underlying the reorganization of the cytoskeleton in the platelet lineage. Recent studies indicate that the emergence of a unique platelet tubulin code and specific pathogenic tubulin mutations cause platelet defects and bleeding disorders. Frequently, these mutations exhibit dominant negative effects, offering valuable insights into both platelet disease mechanisms and the functioning of tubulins. This review will highlight our current understanding of the role of the microtubule cytoskeleton in the life and death of platelets, along with its relevance to platelet disorders.
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Affiliation(s)
- Haonan Liu
- Wellcome Trust Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3BF, UK
| | - Julie P I Welburn
- Wellcome Trust Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3BF, UK
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3
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Grichine A, Jacob S, Eckly A, Villaret J, Joubert C, Appaix F, Pezet M, Ribba AS, Denarier E, Mazzega J, Rinckel JY, Lafanechère L, Elena-Herrmann B, Rowley JW, Sadoul K. The fate of mitochondria during platelet activation. Blood Adv 2023; 7:6290-6302. [PMID: 37624769 PMCID: PMC10589785 DOI: 10.1182/bloodadvances.2023010423] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Blood platelets undergo several successive motor-driven reorganizations of the cytoskeleton when they are recruited to an injured part of a vessel. These reorganizations take place during the platelet activation phase, the spreading process on the injured vessel or between fibrin fibers of the forming clot, and during clot retraction. All these steps require a lot of energy, especially the retraction of the clot when platelets develop strong forces similar to those of muscle cells. Platelets can produce energy through glycolysis and mitochondrial respiration. However, although resting platelets have only 5 to 8 individual mitochondria, they produce adenosine triphosphate predominantly via oxidative phosphorylation. Activated, spread platelets show an increase in size compared with resting platelets, and the question arises as to where the few mitochondria are located in these larger platelets. Using expansion microscopy, we show that the number of mitochondria per platelet is increased in spread platelets. Live imaging and focused ion beam-scanning electron microscopy suggest that a mitochondrial fission event takes place during platelet activation. Fission is Drp1 dependent because Drp1-deficient platelets have fused mitochondria. In nucleated cells, mitochondrial fission is associated with a shift to a glycolytic phenotype, and using clot retraction assays, we show that platelets have a more glycolytic energy production during clot retraction and that Drp1-deficient platelets show a defect in clot retraction.
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Affiliation(s)
- Alexei Grichine
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Shancy Jacob
- Molecular Medicine Program, University of Utah, Salt Lake City, UT
| | - Anita Eckly
- INSERM, EFS Grand Est, Biologie et Pharmacologie des Plaquettes Sanguines Unité Mixed de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, University of Strasbourg, Strasbourg, France
| | - Joran Villaret
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Clotilde Joubert
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Florence Appaix
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Mylène Pezet
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Anne-Sophie Ribba
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Eric Denarier
- INSERM U1216, Commissariat à l'Energie Atomique, Grenoble Institute of Neuroscience, University Grenoble Alpes, Grenoble, France
| | - Jacques Mazzega
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Jean-Yves Rinckel
- INSERM, EFS Grand Est, Biologie et Pharmacologie des Plaquettes Sanguines Unité Mixed de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, University of Strasbourg, Strasbourg, France
| | - Laurence Lafanechère
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Bénédicte Elena-Herrmann
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Jesse W. Rowley
- Molecular Medicine Program, University of Utah, Salt Lake City, UT
| | - Karin Sadoul
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
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4
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Xu P, Deng H, Hong Z, Zhong S, Chen F, Wang L, Wang Z, Mei Y, Luo Z, He Z, Li H, Gan C, Zhang H, Ma Y, Han Z, Zhang YH. Superresolution Fluorescence Microscopy of Platelet Subcellular Structures as a Potential Tumor Liquid Biopsy. SMALL METHODS 2023; 7:e2300445. [PMID: 37349902 DOI: 10.1002/smtd.202300445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Indexed: 06/24/2023]
Abstract
Blood-based tumor liquid biopsies are promising as an alternative or complement to tissue biopsies due to their noninvasiveness, convenience, and safety, and there is still a great demand for the discovery of new biomarkers for these biopsies. Here, nanoscale distribution patterns of subcellular structures in platelets, as imaged by structured illumination superresolution fluorescence microscopy, as a new type of potential biomarker for tumor liquid biopsies are presented. A standardized protocol for platelet sample preparation and developed an automated high-throughput image analysis workflow is established. The diagnostic capability based on the statistical analysis of 280 000 superresolution images of individual platelets from a variety of tumor patients, benign mass patients, and healthy volunteers (n = 206) is explored. These results suggest that the nanoscale distribution patterns of α-granules in platelets have the potential to be biomarkers for several cancers, including glioma and cervical, endometrial, and ovarian cancers, facilitating not only diagnosis but also therapeutic monitoring. This study provides a promising novel type of platelet parameter for tumor liquid biopsies at the subcellular level rather than the existing cellular or molecular level and opens up a new avenue for clinical applications of superresolution imaging techniques.
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Affiliation(s)
- Peng Xu
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Advanced Biomedical Imaging Facility-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Huan Deng
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Advanced Biomedical Imaging Facility-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
- Joint Wuhan Blood Center-Huazhong University of Science and Technology Hematology Optical Imaging Center, Institute of Blood Transfusion of Hubei Province, Wuhan Blood Center, Wuhan, Hubei, 430030, China
| | - Zhenya Hong
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Simei Zhong
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Advanced Biomedical Imaging Facility-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Feifan Chen
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Advanced Biomedical Imaging Facility-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Liangliang Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Zhenhao Wang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Yu Mei
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Ziying Luo
- Guangzhou Computational Super-resolution Biotech, Guangzhou, Guangdong, 510300, China
| | - Ziliang He
- Guangzhou Computational Super-resolution Biotech, Guangzhou, Guangdong, 510300, China
| | - Haiwen Li
- Guangzhou Computational Super-resolution Biotech, Guangzhou, Guangdong, 510300, China
| | - Chao Gan
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Huaqiu Zhang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Yan Ma
- Joint Wuhan Blood Center-Huazhong University of Science and Technology Hematology Optical Imaging Center, Institute of Blood Transfusion of Hubei Province, Wuhan Blood Center, Wuhan, Hubei, 430030, China
| | - Zhiqiang Han
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Yu-Hui Zhang
- Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics, Advanced Biomedical Imaging Facility-Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
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5
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Zelená A, Blumberg J, Probst D, Gerasimaitė R, Lukinavičius G, Schwarz US, Köster S. Force generation in human blood platelets by filamentous actomyosin structures. Biophys J 2023; 122:3340-3353. [PMID: 37475214 PMCID: PMC10465724 DOI: 10.1016/j.bpj.2023.07.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 02/11/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023] Open
Abstract
Blood platelets are central elements of the blood clotting response after wounding. Upon vessel damage, they bind to the surrounding matrix and contract the forming thrombus, thus helping to restore normal blood circulation. The hemostatic function of platelets is directly connected to their mechanics and cytoskeletal organization. The reorganization of the platelet cytoskeleton during spreading occurs within minutes and leads to the formation of contractile actomyosin bundles, but it is not known if there is a direct correlation between the emerging actin structures and the force field that is exerted to the environment. In this study, we combine fluorescence imaging of the actin structures with simultaneous traction force measurements in a time-resolved manner. In addition, we image the final states with superresolution microscopy. We find that both the force fields and the cell shapes have clear geometrical patterns defined by stress fibers. Force generation is localized in a few hotspots, which appear early during spreading, and, in the mature state, anchor stress fibers in focal adhesions. Moreover, we show that, for a gel stiffness in the physiological range, force generation is a very robust mechanism and we observe no systematic dependence on the amount of added thrombin in solution or fibrinogen coverage on the substrate, suggesting that force generation after platelet activation is a threshold phenomenon that ensures reliable thrombus contraction in diverse environments.
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Affiliation(s)
- Anna Zelená
- Institute for X-Ray Physics, University of Göttingen, Göttingen, Germany
| | - Johannes Blumberg
- Institute for Theoretical Physics, University of Heidelberg, Heidelberg, Germany; BioQuant-Center for Quantitative Biology, University of Heidelberg, Heidelberg, Germany
| | - Dimitri Probst
- Institute for Theoretical Physics, University of Heidelberg, Heidelberg, Germany; BioQuant-Center for Quantitative Biology, University of Heidelberg, Heidelberg, Germany
| | - Rūta Gerasimaitė
- Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | | | - Ulrich S Schwarz
- Institute for Theoretical Physics, University of Heidelberg, Heidelberg, Germany; BioQuant-Center for Quantitative Biology, University of Heidelberg, Heidelberg, Germany.
| | - Sarah Köster
- Institute for X-Ray Physics, University of Göttingen, Göttingen, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Göttingen, Germany; Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany.
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6
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Fu G, Yan S, Khoo CJ, Chao VC, Liu Z, Mukhi M, Hervas R, Li XD, Ti SC. Integrated regulation of tubulin tyrosination and microtubule stability by human α-tubulin isotypes. Cell Rep 2023; 42:112653. [PMID: 37379209 DOI: 10.1016/j.celrep.2023.112653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 05/03/2023] [Accepted: 05/31/2023] [Indexed: 06/30/2023] Open
Abstract
Tubulin isotypes are critical for the functions of cellular microtubules, which exhibit different stability and harbor various post-translational modifications. However, how tubulin isotypes determine the activities of regulators for microtubule stability and modifications remains unknown. Here, we show that human α4A-tubulin, a conserved genetically detyrosinated α-tubulin isotype, is a poor substrate for enzymatic tyrosination. To examine the stability of microtubules reconstituted with defined tubulin compositions, we develop a strategy to site-specifically label recombinant human tubulin for single-molecule TIRF microscopy-based in vitro assays. The incorporation of α4A-tubulin into the microtubule lattice stabilizes the polymers from passive and MCAK-stimulated depolymerization. Further characterization reveals that the compositions of α-tubulin isotypes and tyrosination/detyrosination states allow graded control for the microtubule binding and the depolymerization activities of MCAK. Together, our results uncover the tubulin isotype-dependent enzyme activity for an integrated regulation of α-tubulin tyrosination/detyrosination states and microtubule stability, two well-correlated features of cellular microtubules.
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Affiliation(s)
- Guoling Fu
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Shan Yan
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Chen Jing Khoo
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Victor C Chao
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Zheng Liu
- Department of Chemistry, The University of Hong Kong, Hong Kong SAR, China
| | - Mayur Mukhi
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Rubén Hervas
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Xiang David Li
- Department of Chemistry, The University of Hong Kong, Hong Kong SAR, China
| | - Shih-Chieh Ti
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong SAR, China.
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7
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Severin S, Consonni A, Chicanne G, Allart S, Payrastre B, Gratacap MP. SHIP1 Controls Internal Platelet Contraction and α IIbβ 3 Integrin Dynamics in Early Platelet Activation. Int J Mol Sci 2023; 24:ijms24020958. [PMID: 36674478 PMCID: PMC9860818 DOI: 10.3390/ijms24020958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
The Src homology 2 domain-containing inositol 5-phosphatase 1 (SHIP1) is known to dephosphorylate PtdIns(3,4,5)P3 into PtdIns(3,4)P2 and to interact with several signaling proteins though its docking functions. It has been shown to negatively regulate platelet adhesion and spreading on a fibrinogen surface and to positively regulate thrombus growth. In the present study, we have investigated its role during the early phase of platelet activation. Using confocal-based morphometric analysis, we found that SHIP1 is involved in the regulation of cytoskeletal organization and internal contractile activity in thrombin-activated platelets. The absence of SHIP1 has no significant impact on thrombin-induced Akt or Erk1/2 activation, but it selectively affects the RhoA/Rho-kinase pathway and myosin IIA relocalization to the cytoskeleton. SHIP1 interacts with the spectrin-based membrane skeleton, and its absence induces a loss of sustained association of integrins to this network together with a decrease in αIIbβ3 integrin clustering following thrombin stimulation. This αIIbβ3 integrin dynamics requires the contractile cytoskeleton under the control of SHIP1. RhoA activation, internal platelet contraction, and membrane skeleton integrin association were insensitive to the inhibition of PtdIns(3,4,5)P3 synthesis or SHIP1 phosphatase activity, indicating a role for the docking properties of SHIP1 in these processes. Altogether, our data reveal a lipid-independent function for SHIP1 in the regulation of the contractile cytoskeleton and integrin dynamics in platelets.
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Affiliation(s)
- Sonia Severin
- Institut des Maladies Métabolique et Cardiovasculaire (I2MC), Inserm and Université Toulouse III Paul-Sabatier (UMR-1297), 1 Avenue J. Poulhes, CEDEX 4, 31432 Toulouse, France
- Correspondence: (S.S.); (M.-P.G.); Tel.: +33-5-31-22-41-43 (S.S.); +33-5-31-22-41-50 (M.-P.G.)
| | - Alessandra Consonni
- Institut des Maladies Métabolique et Cardiovasculaire (I2MC), Inserm and Université Toulouse III Paul-Sabatier (UMR-1297), 1 Avenue J. Poulhes, CEDEX 4, 31432 Toulouse, France
- Laboratory of Biochemistry, Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy
| | - Gaëtan Chicanne
- Institut des Maladies Métabolique et Cardiovasculaire (I2MC), Inserm and Université Toulouse III Paul-Sabatier (UMR-1297), 1 Avenue J. Poulhes, CEDEX 4, 31432 Toulouse, France
| | - Sophie Allart
- Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity), Université Toulouse III Paul-Sabatier and Inserm (UMR-1291) and CNRS (UMR-5051), Centre Hospitalier Universitaire Purpan, CEDEX 3, 31024 Toulouse, France
| | - Bernard Payrastre
- Institut des Maladies Métabolique et Cardiovasculaire (I2MC), Inserm and Université Toulouse III Paul-Sabatier (UMR-1297), 1 Avenue J. Poulhes, CEDEX 4, 31432 Toulouse, France
- Laboratoire d’Hématologie, Centre de Référence des Pathologies Plaquettaires, Centre Hospitalier Universitaire Rangueil, CEDEX 4, 31432 Toulouse, France
| | - Marie-Pierre Gratacap
- Institut des Maladies Métabolique et Cardiovasculaire (I2MC), Inserm and Université Toulouse III Paul-Sabatier (UMR-1297), 1 Avenue J. Poulhes, CEDEX 4, 31432 Toulouse, France
- Correspondence: (S.S.); (M.-P.G.); Tel.: +33-5-31-22-41-43 (S.S.); +33-5-31-22-41-50 (M.-P.G.)
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8
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Bura A, de Matteis MA, Bender M, Swinkels M, Versluis J, Jansen AJG, Jurak Begonja A. Oculocerebrorenal syndrome of Lowe protein controls cytoskeletal reorganisation during human platelet spreading. Br J Haematol 2023; 200:87-99. [PMID: 36176266 DOI: 10.1111/bjh.18478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 09/05/2022] [Accepted: 09/14/2022] [Indexed: 11/28/2022]
Abstract
Lowe syndrome (LS) is a rare, X-linked disorder characterised by numerous symptoms affecting the brain, the eyes, and the kidneys. It is caused by mutations in the oculocerebrorenal syndrome of Lowe (OCRL) protein, a 5-phosphatase localised in different cellular compartments that dephosphorylates phosphatidylinositol-4,5-bisphosphate into phosphatidylinositol-4-monophosphate. Some patients with LS also have bleeding disorders, with normal to low platelet (PLT) count and impaired PLT function. However, the mechanism of PLT dysfunction in patients with LS is not completely understood. The main function of PLTs is to activate upon vessel wall injury and stop the bleeding by clot formation. PLT activation is accompanied by a shape change that is a result of massive cytoskeletal rearrangements. Here, we show that OCRL-inhibited human PLTs do not fully spread, form mostly filopodia, and accumulate actin nodules. These nodules co-localise with ARP2/3 subunit p34, vinculin, and sorting nexin 9. Furthermore, OCRL-inhibited PLTs have a retained microtubular coil with high levels of acetylated tubulin. Also, myosin light chain phosphorylation is decreased upon OCRL inhibition, without impaired degranulation or integrin activation. Taken together, these results suggest that OCRL contributes to cytoskeletal rearrangements during PLT activation that could explain mild bleeding problems in patients with LS.
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Affiliation(s)
- Ana Bura
- Department of Biotechnology, University of Rijeka, Rijeka, Croatia
| | - Maria Antonietta de Matteis
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli, Naples, Italy.,Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Markus Bender
- Institute of Experimental Biomedicine, University Hospital Wuerzburg, Rudolf Virchow Center, Wuerzburg, Germany
| | - Maurice Swinkels
- Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Jurjen Versluis
- Erasmus MC University Medical Center, Rotterdam, the Netherlands
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9
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Kim OV, Litvinov RI, Mordakhanova ER, Bi E, Vagin O, Weisel JW. Contribution of septins to human platelet structure and function. iScience 2022; 25:104654. [PMID: 35832887 PMCID: PMC9272382 DOI: 10.1016/j.isci.2022.104654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 04/23/2022] [Accepted: 06/17/2022] [Indexed: 11/29/2022] Open
Abstract
Although septins have been well-studied in nucleated cells, their role in anucleate blood platelets remains obscure. Here, we elucidate the contribution of septins to human platelet structure and functionality. We show that Septin-2 and Septin-9 are predominantly distributed at the periphery of resting platelets and co-localize strongly with microtubules. Activation of platelets by thrombin causes clustering of septins and impairs their association with microtubules. Inhibition of septin dynamics with forchlorfenuron (FCF) reduces thrombin-induced densification of septins and lessens their colocalization with microtubules in resting and activated platelets. Exposure to FCF alters platelet shape, suggesting that septins stabilize platelet cytoskeleton. FCF suppresses platelet integrin αIIbβ3 activation, promotes phosphatidylserine exposure on activated platelets, and induces P-selectin expression on resting platelets, suggesting septin involvement in these processes. Inhibition of septin dynamics substantially reduces platelet contractility and abrogates their spreading on fibrinogen-coated surfaces. Overall, septins strongly contribute to platelet structure, activation and biomechanics.
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Affiliation(s)
- Oleg V. Kim
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Rustem I. Litvinov
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Elmira R. Mordakhanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
| | - Erfei Bi
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Olga Vagin
- Department of Pediatrics, Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Veterans Affairs Greater Los Angeles Health Care System, Los Angeles, CA, USA
| | - John W. Weisel
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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10
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Harrison TE, Bowler J, Reeves KD, Levins TN, Cheng AL. Dextrose Effects on Platelet Count and Volume: Implications for Regenerative Medicine. Cureus 2022; 14:e25081. [PMID: 35733469 PMCID: PMC9205679 DOI: 10.7759/cureus.25081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2022] [Indexed: 11/24/2022] Open
Abstract
Platelet-rich plasma (PRP) and hypertonic dextrose solutions are commonly used injectates in regenerative medicine, sometimes used simultaneously. The effects of hypertonic dextrose on platelet lysis and activation have not been previously reported. We tested the effects of escalating dextrose concentration on cell counts and cell volume of platelets and red cells in PRP and whole blood (WB). A prompt partial reduction in platelet count occurred with all dextrose admixtures with either PRP or whole blood, consistent with partial lysis. After the first minute, platelet counts remained stable, suggesting a rapid accommodation of residual platelets to extreme (>2000 mOsm) hypertonicity. A 25% or higher dextrose concentration caused a significant increase in mean platelet volume (MPV), which suggests an early phase of platelet activation. Further investigation is warranted to confirm if platelet lysis or activation has occurred and whether additive clinical benefit may result from hypertonic dextrose injection alone or in combination with PRP.
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11
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Kimmerlin Q, Strassel C, Eckly A, Lanza F. The tubulin code in platelet biogenesis. Semin Cell Dev Biol 2022; 137:63-73. [PMID: 35148939 DOI: 10.1016/j.semcdb.2022.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 01/12/2022] [Accepted: 01/31/2022] [Indexed: 11/28/2022]
Abstract
Blood platelets are small non-nucleated cellular fragments that prevent and stop hemorrhages. They are produced in the bone marrow by megakaryocytes through megakaryopoiesis. This intricate process involves profound microtubule rearrangements culminating in the formation of a unique circular sub-membranous microtubule array, the marginal band, which supports the typical disc-shaped morphology of platelets. Mechanistically, these processes are thought to be controlled by a specific tubulin code. In this review, we summarize the current knowledge on the key isotypes, notably β1-, α4A- and α8-tubulin, and putative post-translational modifications, involved in platelet and marginal band formation. Additionally, we provide a provisional list of microtubule-associated proteins (MAPs) involved in these processes and a survey of tubulin variants identified in patients presenting defective platelet production. A comprehensive characterization of the platelet tubulin code and the identification of essential MAPs may be expected in the near future to shed new light on a very specialized microtubule assembly process with applications in platelet diseases and transfusion.
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Affiliation(s)
- Quentin Kimmerlin
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France.
| | - Catherine Strassel
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France.
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France.
| | - François Lanza
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France.
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12
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Ribba AS, Fraboulet S, Sadoul K, Lafanechère L. The Role of LIM Kinases during Development: A Lens to Get a Glimpse of Their Implication in Pathologies. Cells 2022; 11:cells11030403. [PMID: 35159213 PMCID: PMC8834001 DOI: 10.3390/cells11030403] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/18/2022] [Accepted: 01/22/2022] [Indexed: 12/24/2022] Open
Abstract
The organization of cell populations within animal tissues is essential for the morphogenesis of organs during development. Cells recognize three-dimensional positions with respect to the whole organism and regulate their cell shape, motility, migration, polarization, growth, differentiation, gene expression and cell death according to extracellular signals. Remodeling of the actin filaments is essential to achieve these cell morphological changes. Cofilin is an important binding protein for these filaments; it increases their elasticity in terms of flexion and torsion and also severs them. The activity of cofilin is spatiotemporally inhibited via phosphorylation by the LIM domain kinases 1 and 2 (LIMK1 and LIMK2). Phylogenetic analysis indicates that the phospho-regulation of cofilin has evolved as a mechanism controlling the reorganization of the actin cytoskeleton during complex multicellular processes, such as those that occur during embryogenesis. In this context, the main objective of this review is to provide an update of the respective role of each of the LIM kinases during embryonic development.
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13
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Rizzotti D, Manfrin C, Gerdol M, Greco S, Santovito G, Giulianini PG. Morphological analysis of erythrocytes of an Antarctic teleost under heat stress: Bias of the stabling effect. J Therm Biol 2022; 103:103139. [PMID: 35027197 DOI: 10.1016/j.jtherbio.2021.103139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 11/01/2021] [Accepted: 11/26/2021] [Indexed: 10/19/2022]
Abstract
The stenothermal Antarctic fish that live in the coastal waters of the Terra Nova Bay (Ross Sea) are rarely exposed to temperatures above zero during the year. We tested whether a slight temperature rise of 1.5 °C affects a sensitive biomarker such as erythrocytes morphology in sections of blood pellets of a small demersal notothen. The erythrocytes' shape descriptors showed significant or highly significant differences temporally from the capture of fish to the conclusion of the experiment. Surprisingly, the erythrocyte's morphology did not show significant differences between the two experimental conditions, returning similar results in control fish stabled at -0.9 °C and in the fish treated at +0.6 °C, although the values of the shape descriptors were often lower in the latter. This study demonstrates the critical issues of comparative physiology in the study of extremely sensitive organisms, such as the fish of the High Antarctic Zone. Moreover, the stabling effect inside the aquarium facilities appears to significantly obscure the effects of the experimental heat treatment.
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Affiliation(s)
- Damiano Rizzotti
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Chiara Manfrin
- Department of Life Sciences, University of Trieste, Trieste, Italy.
| | - Marco Gerdol
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Samuele Greco
- Department of Life Sciences, University of Trieste, Trieste, Italy
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14
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Zhovmer AS, Manning A, Smith C, Hayes JB, Burnette DT, Wang J, Cartagena-Rivera AX, Dokholyan NV, Singh RK, Tabdanov ED. Mechanical Counterbalance of Kinesin and Dynein Motors in a Microtubular Network Regulates Cell Mechanics, 3D Architecture, and Mechanosensing. ACS NANO 2021; 15:17528-17548. [PMID: 34677937 PMCID: PMC9291236 DOI: 10.1021/acsnano.1c04435] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Microtubules (MTs) and MT motor proteins form active 3D networks made of unstretchable cables with rod-like bending mechanics that provide cells with a dynamically changing structural scaffold. In this study, we report an antagonistic mechanical balance within the dynein-kinesin microtubular motor system. Dynein activity drives the microtubular network inward compaction, while isolated activity of kinesins bundles and expands MTs into giant circular bands that deform the cell cortex into discoids. Furthermore, we show that dyneins recruit MTs to sites of cell adhesion, increasing the topographic contact guidance of cells, while kinesins antagonize it via retraction of MTs from sites of cell adhesion. Actin-to-microtubule translocation of septin-9 enhances kinesin-MT interactions, outbalances the activity of kinesins over that of dyneins, and induces the discoid architecture of cells. These orthogonal mechanisms of MT network reorganization highlight the existence of an intricate mechanical balance between motor activities of kinesins and dyneins that controls cell 3D architecture, mechanics, and cell-microenvironment interactions.
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Affiliation(s)
- Alexander S. Zhovmer
- Center
for Biologics Evaluation and Research, U.S.
Food and Drug Administration, Silver Spring, Maryland 20903, United States
- . Tel: 1-301-402-1606
| | - Alexis Manning
- Center
for Biologics Evaluation and Research, U.S.
Food and Drug Administration, Silver Spring, Maryland 20903, United States
| | - Chynna Smith
- Section
on Mechanobiology, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - James B. Hayes
- Department
of Cell and Developmental Biology, Vanderbilt Medical Center, University of Vanderbilt, Nashville, Tennessee 37232, United States
| | - Dylan T. Burnette
- Department
of Cell and Developmental Biology, Vanderbilt Medical Center, University of Vanderbilt, Nashville, Tennessee 37232, United States
| | - Jian Wang
- Department
of Pharmacology, Penn State College of Medicine, Pennsylvania State University, Hummelstown, Pennsylvania 17036, United States
| | - Alexander X. Cartagena-Rivera
- Section
on Mechanobiology, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
- . Tel: 1-301-503-4033
| | - Nikolay V. Dokholyan
- Department
of Pharmacology, Penn State College of Medicine, Pennsylvania State University, Hummelstown, Pennsylvania 17036, United States
- Department
of Biochemistry & Molecular Biology, Penn State College of Medicine, Pennsylvania State University, Hershey, Pennsylvania 17033, United States
- . Tel: 1-717-531-5177
| | - Rakesh K. Singh
- Department
of Obstetrics and Gynecology, University
of Rochester Medical Center, Rochester, New York 14620, United States
- . Tel: 1-585-276-6281
| | - Erdem D. Tabdanov
- Department
of Pharmacology, Penn State College of Medicine, Pennsylvania State University, Hummelstown, Pennsylvania 17036, United States
- . Tel: 1-717-531-0003 Ext: 4430
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15
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Regulation of microtubule dynamics, mechanics and function through the growing tip. Nat Rev Mol Cell Biol 2021; 22:777-795. [PMID: 34408299 DOI: 10.1038/s41580-021-00399-x] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2021] [Indexed: 02/07/2023]
Abstract
Microtubule dynamics and their control are essential for the normal function and division of all eukaryotic cells. This plethora of functions is, in large part, supported by dynamic microtubule tips, which can bind to various intracellular targets, generate mechanical forces and couple with actin microfilaments. Here, we review progress in the understanding of microtubule assembly and dynamics, focusing on new information about the structure of microtubule tips. First, we discuss evidence for the widely accepted GTP cap model of microtubule dynamics. Next, we address microtubule dynamic instability in the context of structural information about assembly intermediates at microtubule tips. Three currently discussed models of microtubule assembly and dynamics are reviewed. These are considered in the context of established facts and recent data, which suggest that some long-held views must be re-evaluated. Finally, we review structural observations about the tips of microtubules in cells and describe their implications for understanding the mechanisms of microtubule regulation by associated proteins, by mechanical forces and by microtubule-targeting drugs, prominently including cancer chemotherapeutics.
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16
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Swinkels M, Atiq F, Bürgisser PE, Slotman JA, Houtsmuller AB, de Heus C, Klumperman J, Leebeek FWG, Voorberg J, Jansen AJG, Bierings R. Quantitative 3D microscopy highlights altered von Willebrand factor α-granule storage in patients with von Willebrand disease with distinct pathogenic mechanisms. Res Pract Thromb Haemost 2021; 5:e12595. [PMID: 34532631 PMCID: PMC8440947 DOI: 10.1002/rth2.12595] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/21/2021] [Accepted: 07/27/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Platelets play a key role in hemostasis through plug formation and secretion of their granule contents at sites of endothelial injury. Defects in von Willebrand factor (VWF), a platelet α-granule protein, are implicated in von Willebrand disease (VWD), and may lead to defective platelet adhesion and/or aggregation. Studying VWF quantity and subcellular localization may help us better understand the pathophysiology of VWD. OBJECTIVE Quantitative analysis of the platelet α-granule compartment and VWF storage in healthy individuals and VWD patients. PATIENTS/METHODS Structured illumination microscopy (SIM) was used to study VWF content and organization in platelets of healthy individuals and patients with VWD in combination with established techniques. RESULTS SIM capably quantified clear morphological and granular changes in platelets stimulated with proteinase-activated receptor 1 (PAR-1) activating peptide and revealed a large intra- and interdonor variability in VWF-positive object numbers within healthy resting platelets, similar to variation in secreted protein acidic and rich in cysteine (SPARC). We subsequently characterized VWD platelets to identify changes in the α-granule compartment of patients with different VWF defects, and were able to stratify two patients with type 3 VWD rising from different pathological mechanisms. We further analyzed VWF storage in α-granules of a patient with homozygous p.C1190R using electron microscopy and found discrepant VWF levels and different degrees of multimerization in platelets of patients with heterozygous p.C1190 in comparison to VWF in plasma. CONCLUSIONS Our findings highlight the utility of quantitative imaging approaches in assessing platelet granule content, which may help to better understand VWF storage in α-granules and to gain new insights in the etiology of VWD.
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Affiliation(s)
- Maurice Swinkels
- Department of HematologyErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Ferdows Atiq
- Department of HematologyErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Petra E. Bürgisser
- Department of HematologyErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Johan A. Slotman
- Department of PathologyOptical Imaging CenterErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Adriaan B. Houtsmuller
- Department of PathologyOptical Imaging CenterErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Cilia de Heus
- Department of Cell BiologyUniversity Medical CenterUtrechtThe Netherlands
| | - Judith Klumperman
- Department of Cell BiologyUniversity Medical CenterUtrechtThe Netherlands
| | - Frank W. G. Leebeek
- Department of HematologyErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Jan Voorberg
- Molecular and Cellular HemostasisSanquin Research and Landsteiner LaboratoryAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamThe Netherlands
- Experimental Vascular MedicineAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamThe Netherlands
| | - Arend Jan Gerard Jansen
- Department of HematologyErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Ruben Bierings
- Department of HematologyErasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
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17
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Bender M, Palankar R. Platelet Shape Changes during Thrombus Formation: Role of Actin-Based Protrusions. Hamostaseologie 2021; 41:14-21. [PMID: 33588449 DOI: 10.1055/a-1325-0993] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Platelet activation and aggregation are essential to limit blood loss at sites of vascular injury but may also lead to occlusion of diseased vessels. The platelet cytoskeleton is a critical component for proper hemostatic function. Platelets change their shape after activation and their contractile machinery mediates thrombus stabilization and clot retraction. In vitro studies have shown that platelets, which come into contact with proteins such as fibrinogen, spread and first form filopodia and then lamellipodia, the latter being plate-like protrusions with branched actin filaments. However, the role of platelet lamellipodia in hemostasis and thrombus formation has been unclear until recently. This short review will briefly summarize the recent findings on the contribution of the actin cytoskeleton and lamellipodial structures to platelet function.
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Affiliation(s)
- Markus Bender
- Institute of Experimental Biomedicine - Chair I, University Hospital and Rudolf Virchow Center, Würzburg, Germany
| | - Raghavendra Palankar
- Department of Transfusion Medicine, Institute for Immunology and Transfusion Medicine, University Medicine Greifswald, Greifswald, Germany
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18
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Khan AO, Slater A, Maclachlan A, Nicolson PLR, Pike JA, Reyat JS, Yule J, Stapley R, Rayes J, Thomas SG, Morgan NV. Post-translational polymodification of β1-tubulin regulates motor protein localisation in platelet production and function. Haematologica 2020; 107:243-259. [PMID: 33327716 PMCID: PMC8719104 DOI: 10.3324/haematol.2020.270793] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Indexed: 11/17/2022] Open
Abstract
In specialized cells, the expression of specific tubulin isoforms and their subsequent post-translational modifications drive and coordinate unique morphologies and behaviors. The mechanisms by which b1-tubulin, the platelet and megakaryocyte (MK) lineage restricted tubulin isoform, drives platelet production and function remains poorly understood. We investigated the roles of two key post-translational tubulin polymodifications (polyglutamylation and polyglycylation) on these processes using a cohort of thrombocytopenic patients, human induced pluripotent stem cell derived MK, and healthy human donor platelets. We find distinct patterns of polymodification in MK and platelets, mediated by the antagonistic activities of the cell specific expression of tubulin tyrosine ligase like enzymes and cytosolic carboxypeptidase enzymes. The resulting microtubule patterning spatially regulates motor proteins to drive proplatelet formation in megakaryocytes, and the cytoskeletal reorganization required for thrombus formation. This work is the first to show a reversible system of polymodification by which different cell specific functions are achieved.
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Affiliation(s)
- Abdullah O Khan
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT.
| | - Alexandre Slater
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT
| | - Annabel Maclachlan
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT
| | - Phillip L R Nicolson
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT
| | - Jeremy A Pike
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT; Centre of Membrane and Protein and Receptors (COMPARE), University of Birmingham and University of Nottingham, Midlands
| | - Jasmeet S Reyat
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT
| | - Jack Yule
- Centre of Membrane and Protein and Receptors (COMPARE), University of Birmingham and University of Nottingham, Midlands
| | - Rachel Stapley
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT
| | - Julie Rayes
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT
| | - Steven G Thomas
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT; Centre of Membrane and Protein and Receptors (COMPARE), University of Birmingham and University of Nottingham, Midlands
| | - Neil V Morgan
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK, B15 2TT.
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19
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Zelená A, Isbaner S, Ruhlandt D, Chizhik A, Cassini C, Klymchenko AS, Enderlein J, Chizhik A, Köster S. Time-resolved MIET measurements of blood platelet spreading and adhesion. NANOSCALE 2020; 12:21306-21315. [PMID: 33073832 DOI: 10.1039/d0nr05611a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Human blood platelets are non-nucleated fragments of megakaryocytes and of high importance for early hemostasis. To form a blood clot, platelets adhere to the blood vessel wall, spread and attract other platelets. Despite the importance for biomedicine, the exact mechanism of platelet spreading and adhesion to surfaces remains elusive. Here, we employ metal-induced energy transfer (MIET) imaging with a leaflet-specific fluorescent membrane probe to quantitatively determine, with nanometer resolution and in a time-resolved manner, the height profile of the basal and the apical platelet membrane above a rigid substrate during platelet spreading. We observe areas, where the platelet membrane approaches the substrate particularly closely and these areas are stable on a time scale of minutes. Time-resolved MIET measurements reveal distinct behaviors of the outermost rim and the central part of the platelets, respectively. Our findings quantify platelet adhesion and spreading and improve our understanding of early steps in blood clotting. Furthermore, the results of this study demonstrate the potential of MIET for simultaneous imaging of two close-by membranes and thus three-dimensional reconstruction of the cell shape.
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Affiliation(s)
- Anna Zelená
- Institute for X-Ray Physics, University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
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20
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The emerging role of tubulin posttranslational modifications in cilia and ciliopathies. BIOPHYSICS REPORTS 2020. [DOI: 10.1007/s41048-020-00111-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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21
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Sadoul K, Lafanechère L, Grichine A. Live imaging of single platelets at work. Platelets 2020; 31:551-558. [PMID: 31880193 DOI: 10.1080/09537104.2019.1708886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Although live imaging of dynamic processes in platelets is a challenging task, several important observations have been published during the last 20 years. We will discuss the amazing insights that have been achieved, the difficulties that can be encountered as well as some questions still open and the future technical perspectives.
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Affiliation(s)
- Karin Sadoul
- Institute for Advanced Biosciences, University Grenoble Alpes , Grenoble, France
| | - Laurence Lafanechère
- Institute for Advanced Biosciences, University Grenoble Alpes , Grenoble, France
| | - Alexei Grichine
- Institute for Advanced Biosciences, University Grenoble Alpes , Grenoble, France
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22
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Abstract
Recent advances in super-resolution (sub-diffraction limited) microscopy have yielded remarkable insights into the nanoscale architecture and behavior of cells. In addition to the capacity to provide sub 100 nm resolution, these technologies offer unique quantitative opportunities with particular relevance to platelet and megakaryocyte biology. In this review, we provide a short introduction to modern super-resolution microscopy, its applications in the field of platelet and megakaryocyte biology, and emerging quantitative approaches which will allow for unprecedented insights into the biology of these unique cell types.
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Affiliation(s)
- Abdullah O Khan
- Institute of Cardiovascular Sciences, College of Medical and Dental Science, University of Birmingham , Birmingham, UK
| | - Jeremy A Pike
- Institute of Cardiovascular Sciences, College of Medical and Dental Science, University of Birmingham , Birmingham, UK.,Centre of Membrane Proteins and Receptors, Universities of Birmingham and Nottingham , UK
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23
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Horev MB, Zabary Y, Zarka R, Sorrentino S, Medalia O, Zaritsky A, Geiger B. Differential dynamics of early stages of platelet adhesion and spreading on collagen IV- and fibrinogen-coated surfaces. F1000Res 2020; 9. [PMID: 32566134 PMCID: PMC7281675 DOI: 10.12688/f1000research.23598.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/25/2020] [Indexed: 12/29/2022] Open
Abstract
Background: Upon wound formation, platelets adhere to the neighboring extracellular matrix and spread on it, a process which is critical for physiological wound healing. Multiple external factors, such as the molecular composition of the environment and its mechanical properties, play a key role in this process and direct its speed and outcome. Methods: We combined live cell imaging, quantitative interference reflection microscopy and cryo-electron tomography to characterize, at a single platelet level, the differential spatiotemporal dynamics of the adhesion process to fibrinogen- and collagen IV-functionalized surfaces. Results: Initially, platelets sense both substrates by transient rapid extensions of filopodia. On collagen IV, a short-term phase of filopodial extension is followed by lamellipodia-based spreading. This transition is preceded by the extension of a single or couple of microtubules into the platelet's periphery and their apparent insertion into the core of the filopodia. On fibrinogen surfaces, the filopodia-to-lamellipodia transition was partial and microtubule extension was not observed leading to limited spreading, which could be restored by manganese or thrombin. Conclusions: Based on these results, we propose that interaction with collagen IV stimulate platelets to extend microtubules to peripheral filopodia, which in turn, enhances filopodial-to-lamellipodial transition and overall lamellipodia-based spreading. Fibrinogen, on the other hand, fails to induce these early microtubule extensions, leading to full lamellipodia spreading in only a fraction of the seeded platelets. We further suggest that activation of integrin αIIbβ3 is essential for filopodial-to-lamellipodial transition, based on the capacity of integrin activators to enhance lamellipodia spreading on fibrinogen.
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Affiliation(s)
- Melanie B Horev
- Department of Immunology, Weizmann Institute of Science, Rehovot, Rehovot, 76100, Israel
| | - Yishaia Zabary
- Department of Software and Information Systems Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Revital Zarka
- Department of Immunology, Weizmann Institute of Science, Rehovot, Rehovot, 76100, Israel
| | - Simona Sorrentino
- Department of Biochemistry, University of Zurich, Zurich, CH-8057, Switzerland
| | - Ohad Medalia
- Department of Biochemistry, University of Zurich, Zurich, CH-8057, Switzerland
| | - Assaf Zaritsky
- Department of Software and Information Systems Engineering, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Benjamin Geiger
- Department of Immunology, Weizmann Institute of Science, Rehovot, Rehovot, 76100, Israel
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24
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Platelet Interactions with Liver Sinusoidal Endothelial Cells and Hepatic Stellate Cells Lead to Hepatocyte Proliferation. Cells 2020; 9:cells9051243. [PMID: 32443494 PMCID: PMC7290338 DOI: 10.3390/cells9051243] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 12/11/2022] Open
Abstract
(1) Background: Platelets were postulated to constitute the trigger of liver regeneration. The aim of this study was to dissect the cellular interactions between the various liver cells involved in liver regeneration and to clarify the role of platelets. (2) Methods: Primary mouse liver sinusoidal endothelial cells (LSECs) were co-incubated with increasing numbers of resting platelets, activated platelets, or platelet releasates. Alterations in the secretion of growth factors were measured. The active fractions of platelet releasates were characterized and their effects on hepatocyte proliferation assessed. Finally, conditioned media of LSECs exposed to platelets were added to primary hepatic stellate cells (HSCs). Secretion of hepatocyte growth factor (HGF) and hepatocyte proliferation were measured. After partial hepatectomy in mice, platelet and liver sinusoidal endothelial cell (LSEC) interactions were analyzed in vivo by confocal microscopy, and interleukin-6 (IL-6) and HGF levels were determined. (3) Results: Co-incubation of increasing numbers of platelets with LSECs resulted in enhanced IL-6 secretion by LSECs. The effect was mediated by the platelet releasate, notably a thermolabile soluble factor with a molecular weight over 100 kDa. The conditioned medium of LSECs exposed to platelets did not increase proliferation of primary hepatocytes when compared to LSECs alone but stimulated hepatocyte growth factor (HGF) secretion by HSCs, which led to hepatocyte proliferation. Following partial hepatectomy, in vivo adhesion of platelets to LSECs was significantly increased when compared to sham-operated mice. Clopidogrel inhibited HGF secretion after partial hepatectomy. (4) Conclusion: Our findings indicate that platelets interact with LSECs after partial hepatectomy and activate them to release a large molecule of protein nature, which constitutes the initial trigger for liver regeneration.
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Ribba AS, Batzenschlager M, Rabat C, Buchou T, Moog S, Khochbin S, Bourova-Flin E, Lafanechère L, Lanza F, Sadoul K. Marginal band microtubules are acetylated by αTAT1. Platelets 2020; 32:568-572. [PMID: 32362199 DOI: 10.1080/09537104.2020.1759791] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The discoid shape of resting platelets is maintained by a peripheral, circular bundle of microtubules called marginal band. Marginal band microtubules are acetylated on lysine 40 of the alpha-tubulin subunits. We have previously shown that the deacetylase HDAC6 is responsible for tubulin deacetylation in platelets and that the hyperacetylated state of the microtubules in HDAC6KO platelets correlates with faster activation/spreading kinetics, pointing to a regulatory role of this modification. So far, the question about the reverse enzyme, responsible for tubulin acetylation in platelets, has remained unanswered. Several enzymes have been described as having tubulin acetylation activity. Here we identify αTAT1 as the enzyme responsible for the acetylation of marginal band microtubules. We show that αTAT1 deficiency has only minor consequences for platelet production and function. A residual tubulin acetylation level in αTAT1 deficient platelet lysates suggests the presence of an additional tubulin-acetylating enzyme that is unable to acetylate marginal band microtubules.
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Affiliation(s)
- Anne-Sophie Ribba
- Institute for Advanced Biosciences, University Grenoble Alpes, INSERM, CNRS, Grenoble, France
| | | | - Clotilde Rabat
- Institute for Advanced Biosciences, University Grenoble Alpes, INSERM, CNRS, Grenoble, France
| | - Thierry Buchou
- Institute for Advanced Biosciences, University Grenoble Alpes, INSERM, CNRS, Grenoble, France
| | - Sylvie Moog
- INSERM, EFS, Université De Strasbourg, Strasbourg, France
| | - Saadi Khochbin
- Institute for Advanced Biosciences, University Grenoble Alpes, INSERM, CNRS, Grenoble, France
| | - Ekaterina Bourova-Flin
- Institute for Advanced Biosciences, University Grenoble Alpes, INSERM, CNRS, Grenoble, France
| | - Laurence Lafanechère
- Institute for Advanced Biosciences, University Grenoble Alpes, INSERM, CNRS, Grenoble, France
| | - François Lanza
- INSERM, EFS, Université De Strasbourg, Strasbourg, France
| | - Karin Sadoul
- Institute for Advanced Biosciences, University Grenoble Alpes, INSERM, CNRS, Grenoble, France
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26
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Green HLH, Zuidscherwoude M, Alenazy F, Smith CW, Bender M, Thomas SG. SMIFH2 inhibition of platelets demonstrates a critical role for formin proteins in platelet cytoskeletal dynamics. J Thromb Haemost 2020; 18:955-967. [PMID: 31930764 PMCID: PMC7186844 DOI: 10.1111/jth.14735] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 01/07/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Reorganization of the actin cytoskeleton is required for proper functioning of platelets following activation in response to vascular damage. Formins are a family of proteins that regulate actin polymerization and cytoskeletal organization via a number of domains including the FH2 domain. However, the role of formins in platelet spreading has not been studied in detail. OBJECTIVES Several formin proteins are expressed in platelets so we used an inhibitor of FH2 domains (SMIFH2) to uncover the role of these proteins in platelet spreading and in maintenance of resting platelet shape. METHODS Washed human and mouse platelets were treated with various concentrations of SMIFH2 and the effects on platelet spreading, platelet size, platelet cytoskeletal dynamics, and organization were analyzed using fluorescence and electron microscopy. RESULTS Pretreatment with SMIFH2 completely blocks platelet spreading in both mouse and human platelets through effects on the organization and dynamics of actin and microtubules. However, platelet aggregation and secretion are unaffected. SMIFH2 also caused a decrease in resting platelet size and disrupted the balance of tubulin post-translational modification. CONCLUSIONS These data therefore demonstrated an important role for formin-mediated actin polymerization in platelet spreading and highlighted the importance of formins in cross-talk between the actin and tubulin cytoskeletons.
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Affiliation(s)
- Hannah L. H. Green
- Institute of Cardiovascular SciencesUniversity of BirminghamBirminghamUK
- Present address:
School of Cardiovascular Medicine & SciencesBHF Centre of Research ExcellenceKing's College LondonLondonUK
| | - Malou Zuidscherwoude
- Institute of Cardiovascular SciencesUniversity of BirminghamBirminghamUK
- Centre of Membrane Proteins and Receptors (COMPARE)University of Birmingham and University of NottinghamMidlandsUK
| | - Fawaz Alenazy
- Institute of Cardiovascular SciencesUniversity of BirminghamBirminghamUK
| | | | - Markus Bender
- Institute of Experimental Biomedicine – Chair IUniversity Hospital and Rudolf Virchow CenterWürzburgGermany
| | - Steven G. Thomas
- Institute of Cardiovascular SciencesUniversity of BirminghamBirminghamUK
- Centre of Membrane Proteins and Receptors (COMPARE)University of Birmingham and University of NottinghamMidlandsUK
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27
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Cuenca-Zamora EJ, Ferrer-Marín F, Rivera J, Teruel-Montoya R. Tubulin in Platelets: When the Shape Matters. Int J Mol Sci 2019; 20:E3484. [PMID: 31315202 PMCID: PMC6678703 DOI: 10.3390/ijms20143484] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/15/2019] [Accepted: 06/17/2019] [Indexed: 12/12/2022] Open
Abstract
Platelets are anuclear cells with a short lifespan that play an essential role in many pathophysiological processes, including haemostasis, inflammation, infection, vascular integrity, and metastasis. Billions of platelets are produced daily from megakaryocytes (platelet precursors). Despite this high production, the number of circulating platelets is stable and, under resting conditions, they maintain their typical discoid shape thanks to cytoskeleton proteins. The activation of platelets is associated with dynamic and rapid changes in the cytoskeleton. Two cytoskeletal polymer systems exist in megakaryocytes and platelets: actin filaments and microtubules, based on actin, and α- and β-tubulin heterodimers, respectively. Herein, we will focus on platelet-specific tubulins and their alterations and role of the microtubules skeleton in platelet formation (thrombopoiesis). During this process, microtubules mediate elongation of the megakaryocyte extensions (proplatelet) and granule trafficking from megakaryocytes to nascent platelets. In platelets, microtubules form a subcortical ring, the so-called marginal band, which confers the typical platelet discoid shape and is also responsible for changes in platelet morphology upon activation. Molecular alterations in the gene encoding β1 tubulin and microtubules post-translational modifications may result in quantitative or qualitative changes in tubulin, leading to altered cytoskeleton reorganization that may induce changes in the platelet number (thrombocytopenia), morphology or function. Consequently, β1-tubulin modifications may participate in pathological and physiological processes, such as development.
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Affiliation(s)
- Ernesto José Cuenca-Zamora
- Servicio de Hematología y Oncología Médica, Centro Regional de Hemodonación, Hospital Universitario Morales Meseguer, IMIB-Arrixaca, Red CIBERER CB15/00055, 30003 Murcia, Spain
| | - Francisca Ferrer-Marín
- Servicio de Hematología y Oncología Médica, Centro Regional de Hemodonación, Hospital Universitario Morales Meseguer, IMIB-Arrixaca, Red CIBERER CB15/00055, 30003 Murcia, Spain.
- Grado de Medicina, Universidad Católica San Antonio (UCAM), Campus de los Jerónimos, 30107 Murcia, Spain.
| | - José Rivera
- Servicio de Hematología y Oncología Médica, Centro Regional de Hemodonación, Hospital Universitario Morales Meseguer, IMIB-Arrixaca, Red CIBERER CB15/00055, 30003 Murcia, Spain
| | - Raúl Teruel-Montoya
- Servicio de Hematología y Oncología Médica, Centro Regional de Hemodonación, Hospital Universitario Morales Meseguer, IMIB-Arrixaca, Red CIBERER CB15/00055, 30003 Murcia, Spain
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28
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Differential protein expression of blood platelet components associated with adverse transfusion reactions. J Proteomics 2019; 194:25-36. [DOI: 10.1016/j.jprot.2018.12.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 12/13/2018] [Accepted: 12/17/2018] [Indexed: 02/06/2023]
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29
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Hanke J, Ranke C, Perego E, Köster S. Human blood platelets contract in perpendicular direction to shear flow. SOFT MATTER 2019; 15:2009-2019. [PMID: 30724316 DOI: 10.1039/c8sm02136h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In their physiological environment, blood platelets are permanently exposed to shear forces caused by blood flow. Within this surrounding, they generate contractile forces that eventually lead to a compaction of the blood clot. Here, we present a microfluidic chamber that combines hydrogel-based traction force microscopy with a controlled shear environment, and investigate the force fields platelets generate when exposed to shear flow in a spatio-temporally resolved manner. We find that for shear rates between 14 s-1 to 33 s-1, the general contraction behavior in terms of force distribution and magnitude does not differ from no-flow conditions. The main direction of contraction, however, does respond to the externally applied stress. At high shear stress, we observe an angle of about 90° between flow direction and main contraction axis. We explain this observation by the distribution of the stress acting on the adherent cell: the observed angle provides the most stable situation for the cell experiencing the shear flow, as supported by a finite element method simulation of the stresses along the platelet boundary.
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Affiliation(s)
- Jana Hanke
- Institute for X-Ray Physics, University of Goettingen, 37077 Göttingen, Germany.
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30
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Kim OV, Nevzorova TA, Mordakhanova ER, Ponomareva AA, Andrianova IA, Le Minh G, Daminova AG, Peshkova AD, Alber MS, Vagin O, Litvinov RI, Weisel JW. Fatal dysfunction and disintegration of thrombin-stimulated platelets. Haematologica 2019; 104:1866-1878. [PMID: 30792211 PMCID: PMC6717590 DOI: 10.3324/haematol.2018.202309] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 02/14/2019] [Indexed: 12/12/2022] Open
Abstract
Platelets play a key role in the formation of hemostatic clots and obstructive thrombi as well as in other biological processes. In response to physiological stimulants, including thrombin, platelets change shape, express adhesive molecules, aggregate, and secrete bioactive substances, but their subsequent fate is largely unknown. Here we examined late-stage structural, metabolic, and functional consequences of thrombin-induced platelet activation. Using a combination of confocal microscopy, scanning and transmission electron microscopy, flow cytometry, biochemical and biomechanical measurements, we showed that thrombin-induced activation is followed by time-dependent platelet dysfunction and disintegration. After ~30 minutes of incubation with thrombin, unlike with collagen or ADP, human platelets disintegrated into cellular fragments containing organelles, such as mitochondria, glycogen granules, and vacuoles. This platelet fragmentation was preceded by Ca2+ influx, integrin αIIbβ3 activation and phosphatidylserine exposure (activation phase), followed by mitochondrial depolarization, generation of reactive oxygen species, metabolic ATP depletion and impairment of platelet contractility along with dramatic cytoskeletal rearrangements, concomitant with platelet disintegration (death phase). Coincidentally with the platelet fragmentation, thrombin caused calpain activation but not activation of caspases 3 and 7. Our findings indicate that the late functional and structural damage of thrombin-activated platelets comprise a calpain-dependent platelet death pathway that shares some similarities with the programmed death of nucleated cells, but is unique to platelets, therefore representing a special form of cellular destruction. Fragmentation of activated platelets suggests that there is an underappreciated pathway of enhanced elimination of platelets from the circulation in (pro)thrombotic conditions once these cells have performed their functions.
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Affiliation(s)
- Oleg V Kim
- University of Pennsylvania Perelman School of Medicine, Department of Cell and Developmental Biology, Philadelphia, PA, USA.,University of California Riverside, Department of Mathematics, Riverside, CA, USA
| | - Tatiana A Nevzorova
- Kazan Federal University, Institute of Fundamental Medicine and Biology, Kazan, Russian Federation
| | - Elmira R Mordakhanova
- Kazan Federal University, Institute of Fundamental Medicine and Biology, Kazan, Russian Federation
| | - Anastasia A Ponomareva
- Kazan Federal University, Institute of Fundamental Medicine and Biology, Kazan, Russian Federation.,Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Kazan, Russian Federation
| | - Izabella A Andrianova
- Kazan Federal University, Institute of Fundamental Medicine and Biology, Kazan, Russian Federation
| | - Giang Le Minh
- Kazan Federal University, Institute of Fundamental Medicine and Biology, Kazan, Russian Federation
| | - Amina G Daminova
- Kazan Federal University, Institute of Fundamental Medicine and Biology, Kazan, Russian Federation.,Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Kazan, Russian Federation
| | - Alina D Peshkova
- Kazan Federal University, Institute of Fundamental Medicine and Biology, Kazan, Russian Federation
| | - Mark S Alber
- University of California Riverside, Department of Mathematics, Riverside, CA, USA
| | - Olga Vagin
- Geffen School of Medicine at UCLA, Department of Physiology, Los Angeles, CA, USA.,VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Rustem I Litvinov
- University of Pennsylvania Perelman School of Medicine, Department of Cell and Developmental Biology, Philadelphia, PA, USA.,Kazan Federal University, Institute of Fundamental Medicine and Biology, Kazan, Russian Federation
| | - John W Weisel
- University of Pennsylvania Perelman School of Medicine, Department of Cell and Developmental Biology, Philadelphia, PA, USA
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32
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Liu Y, Liu T, Zhao J, He T, Chen H, Wang J, Zhang W, Ma W, Fan Y, Song X. Phospholipase Cγ2 signalling contributes to the haemostatic effect of Notoginsenoside Ft1. ACTA ACUST UNITED AC 2018; 71:878-886. [PMID: 30549041 DOI: 10.1111/jphp.13057] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/18/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The drawback of bleeding caused by chronic antiplatelet therapy is persecuting patients with thrombotic diseases severely. Based on the dual-directional regulatory effect of Panax notoginseng on platelet, the present study focused on the effect of Notoginsenoside Ft1, a saponin with effect in promoting platelet aggregation. KEY FINDINGS According to the present study, Notoginsenoside Ft1 cannot stimulate platelet aggregation independently. However, the effect in enhancing aggregation induced by thrombin, collagen and ADP is peaked at 5-10 μm. In addition, thrombin-induced activation of PLCγ2-IP3 /DAG-[Ca2+ ]/PKC-TXA2 signalling was potentiated by Notoginsenoside Ft1, as well. Furthermore, the mice tail bleeding time was shortened by administration of Notoginsenoside Ft1 significantly. And the bleeding time prolonged by aspirin was also restored by Ft1. CONCLUSIONS The haemostatic effect of Notoginsenoside Ft1 was exerted through potentiation of PLCγ2-IP3 /DAG-[Ca2+ ]/PKC-TXA2 signalling pathway stimulated by other stimulators. Notoginsenoside Ft1 has the potential to be developed into supplements in antiplatelet therapy to prevent the drawback of bleeding.
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Affiliation(s)
- Yingqiu Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Tianyi Liu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, China
| | - Jing Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Taotao He
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Hua Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jiaqing Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Weimin Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Wuren Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yunpeng Fan
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xiaoping Song
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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Roll-Mecak A. How cells exploit tubulin diversity to build functional cellular microtubule mosaics. Curr Opin Cell Biol 2018; 56:102-108. [PMID: 30466050 DOI: 10.1016/j.ceb.2018.10.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/16/2018] [Accepted: 10/31/2018] [Indexed: 11/26/2022]
Abstract
Cellular microtubules are mosaic polymers assembled from multiple αβ-tubulin isoforms bearing chemically diverse posttranslational modifications. This tubulin diversity constitutes a combinatorial code that regulates microtubule interactions with cellular effectors and alters their intrinsic dynamic and mechanical properties. Cells generate stereotyped and complex tubulin modification patterns that are important for their specialized functions. Here we give a brief overview of the tubulin genetic and chemical diversity and highlight recent advances in our understanding of how the tubulin code regulates essential biological processes ranging from intracellular cargo transport, to cell division and cardiomyocyte contraction. Finally, we speculate on the molecular mechanisms for the generation and maintenance of the complex stereotyped modification patterns that form cellular microtubule mosaics.
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Affiliation(s)
- Antonina Roll-Mecak
- Cell Biology and Biophysics Unit, National Institute of Neurological Disorders and Stroke, Bethesda, MD 20892, USA; Biophysics Center, National Heart, Lung and Blood Institute, MD 20892, USA.
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34
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Lager TW, Roetman JJ, Kunkel J, Thacker M, Sheets JN, Egland KA, Miles CM, Larson MK, Gubbels JAA. Sushi Domain Containing 2 (SUSD2) inhibits platelet activation and binding to high-grade serous ovarian carcinoma cells. Platelets 2018; 29:834-837. [PMID: 30335544 DOI: 10.1080/09537104.2018.1530345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Platelets play a central role in primary hemostasis affecting tumor survival and metastases. Tumors induce platelets to aggregate and bind to the cancer cells, resulting in protection from immune surveillance and often leading to thrombocytosis. In ovarian cancer (OvCa), one-third of patients present with thrombocytosis, a diagnosis that correlates with shorter survival. SUSD2 (SUShi Domain containing 2), a type I transmembrane protein, shown to inhibit metastatic processes in high-grade serous ovarian carcinoma (HGSOC), is expressed on endothelial cells and thus may influence platelet reactivity. As such, we hypothesized that SUSD2 levels in ovarian cancer-derived cell lines influence platelet activation. We incubated OvCa non-targeting (NT) and SUSD2 knockdown (KD) cell lines with labeled platelets and quantified platelet binding, as well as GPIIb/IIIa integrin activation. The role of GPIIb/IIIa in tumor cell/platelet interaction was also examined by measuring cell-cell adhesion in the presence of eptifibatide. We found that platelets exposed to OvCa cells with low SUSD2 expression display increased tumor cell-platelet binding along with an increase in GPIIb/IIIa receptor activation. As such, platelet activation and binding to HGSOC cells was inversely correlated with the presence of SUSD2. This represents one of the first tumor proteins known to provide differential platelet interaction based on protein status.
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Affiliation(s)
- Tyson W Lager
- a Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Jessica J Roetman
- a Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Jacob Kunkel
- a Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Megan Thacker
- a Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Jordan N Sheets
- b Cancer Biology Research Center, Sanford Research , Sanford School of Medicine of the University of South Dakota , Sioux Falls , SD , USA
| | - Kristi A Egland
- b Cancer Biology Research Center, Sanford Research , Sanford School of Medicine of the University of South Dakota , Sioux Falls , SD , USA
| | - Cecelia M Miles
- a Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Mark K Larson
- a Department of Biology , Augustana University , Sioux Falls , SD , USA
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van Dijk J, Bompard G, Cau J, Kunishima S, Rabeharivelo G, Mateos-Langerak J, Cazevieille C, Cavelier P, Boizet-Bonhoure B, Delsert C, Morin N. Microtubule polyglutamylation and acetylation drive microtubule dynamics critical for platelet formation. BMC Biol 2018; 16:116. [PMID: 30336771 PMCID: PMC6194603 DOI: 10.1186/s12915-018-0584-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/03/2018] [Indexed: 11/10/2022] Open
Abstract
Background Upon maturation in the bone marrow, polyploid megakaryocytes elongate very long and thin cytoplasmic branches called proplatelets. Proplatelets enter the sinusoids blood vessels in which platelets are ultimately released. Microtubule dynamics, bundling, sliding, and coiling, drive these dramatic morphological changes whose regulation remains poorly understood. Microtubule properties are defined by tubulin isotype composition and post-translational modification patterns. It remains unknown whether microtubule post-translational modifications occur in proplatelets and if so, whether they contribute to platelet formation. Results Here, we show that in proplatelets from mouse megakaryocytes, microtubules are both acetylated and polyglutamylated. To bypass the difficulties of working with differentiating megakaryocytes, we used a cell model that allowed us to test the functions of these modifications. First, we show that α2bβ3integrin signaling in D723H cells is sufficient to induce β1tubulin expression and recapitulate the specific microtubule behaviors observed during proplatelet elongation and platelet release. Using this model, we found that microtubule acetylation and polyglutamylation occur with different spatio-temporal patterns. We demonstrate that microtubule acetylation, polyglutamylation, and β1tubulin expression are mandatory for proplatelet-like elongation, swelling formation, and cytoplast severing. We discuss the functional importance of polyglutamylation of β1tubulin-containing microtubules for their efficient bundling and coiling during platelet formation. Conclusions We characterized and validated a powerful cell model to address microtubule behavior in mature megakaryocytes, which allowed us to demonstrate the functional importance of microtubule acetylation and polyglutamylation for platelet release. Furthermore, we bring evidence of a link between the expression of a specific tubulin isotype, the occurrence of microtubule post-translational modifications, and the acquisition of specific microtubule behaviors. Thus, our findings could widen the current view of the regulation of microtubule behavior in cells such as osteoclasts, spermatozoa, and neurons, which express distinct tubulin isotypes and display specific microtubule activities during differentiation. Electronic supplementary material The online version of this article (10.1186/s12915-018-0584-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Juliette van Dijk
- Universités de Montpellier, 34293, Montpellier, France.,CRBM, CNRS, UMR 5237, 1919 Route de Mende, 34293, Montpellier, France
| | - Guillaume Bompard
- Universités de Montpellier, 34293, Montpellier, France.,IGH, CNRS UMR9002, 141, rue de la Cardonille, 34396, Montpellier, France
| | - Julien Cau
- Universités de Montpellier, 34293, Montpellier, France.,IGH, CNRS UMR9002, 141, rue de la Cardonille, 34396, Montpellier, France.,Montpellier Rio Imaging, 34293, Montpellier, France
| | - Shinji Kunishima
- Department of Advanced Diagnosis, National Hospital Organization Nagoya Medical Center, 4-1-1 Sannomaru, Naka-ku, Nagoya, 4600001, Japan.,Present address: Department of Medical Technology, Gifu University of Medical Science, Seki, Gifu, 5013892, Japan
| | - Gabriel Rabeharivelo
- Universités de Montpellier, 34293, Montpellier, France.,CRBM, CNRS, UMR 5237, 1919 Route de Mende, 34293, Montpellier, France
| | - Julio Mateos-Langerak
- Universités de Montpellier, 34293, Montpellier, France.,IGH, CNRS UMR9002, 141, rue de la Cardonille, 34396, Montpellier, France.,Montpellier Rio Imaging, 34293, Montpellier, France
| | - Chantal Cazevieille
- Universités de Montpellier, 34293, Montpellier, France.,INM, INSERM UMR1051, 34293, Montpellier, France
| | - Patricia Cavelier
- Universités de Montpellier, 34293, Montpellier, France.,IGMM, CNRS, UMR 5535, 1919 Route de Mende, 34293, Montpellier, France
| | - Brigitte Boizet-Bonhoure
- Universités de Montpellier, 34293, Montpellier, France.,IGH, CNRS UMR9002, 141, rue de la Cardonille, 34396, Montpellier, France
| | - Claude Delsert
- Universités de Montpellier, 34293, Montpellier, France.,CRBM, CNRS, UMR 5237, 1919 Route de Mende, 34293, Montpellier, France.,3AS Station Expérimentale d'Aquaculture Ifremer, Chemin de Maguelone, 34250, Palavas-les-Flots, France
| | - Nathalie Morin
- Universités de Montpellier, 34293, Montpellier, France. .,CRBM, CNRS, UMR 5237, 1919 Route de Mende, 34293, Montpellier, France.
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36
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Moskalensky AE, Litvinenko AL. The platelet shape change: biophysical basis and physiological consequences. Platelets 2018; 30:543-548. [DOI: 10.1080/09537104.2018.1514109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Alexander E. Moskalensky
- Laboratory of Optics and Dynamics of Biological Systems, Novosibirsk State University, Novosibirsk, Russia
- Laboratory of Cytometry and Biokinetics, Voevodsky Institute of Chemical Kinetics and Combustion, Novosibirsk, Russia
| | - Alena L. Litvinenko
- Laboratory of Optics and Dynamics of Biological Systems, Novosibirsk State University, Novosibirsk, Russia
- Laboratory of Cytometry and Biokinetics, Voevodsky Institute of Chemical Kinetics and Combustion, Novosibirsk, Russia
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37
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Hanke J, Probst D, Zemel A, Schwarz US, Köster S. Dynamics of force generation by spreading platelets. SOFT MATTER 2018; 14:6571-6581. [PMID: 30052252 DOI: 10.1039/c8sm00895g] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In order to gain more insight into the role of human platelets for blood clot formation, here we investigate the dynamics of force generation by platelet spreading onto elastic substrates of variable stiffness. Despite their small size, platelets generate high and rapidly varying traction forces on their extracellular environment, which we reconstruct with adapted implementations of Fourier transform traction cytometry. We find that while the final spread area is reached within a few minutes, the build-up of forces typically takes 10-30 minutes. In addition, we identify two distinct behaviors of individual cells, namely oscillating and non-oscillating platelets. An eigenvalue analysis of the platelet dipole tensor reveals a small anisotropy of the exerted force, which is compatible with a random distribution of a few force transmitting centers, in agreement with the observed shapes and traction patterns. We find a correlation between the maximum force level a platelet reaches and its spread area, which we explain by a thin film model for the actively contracting cell. The model reveals a large internal stress of hundreds of kPa. Experimentally we do not find any statistically relevant relation between the force level reached and the substrate stiffness within the stiffness range from 19 to 83 kPa, which might be related to the high platelet activation level used in our study. In addition, our model suggests that due to the uniquely small thickness of platelets, their mechanosensitivity might be limited to a lower stiffness range.
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Affiliation(s)
- Jana Hanke
- Institute for X-Ray Physics, University of Goettingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
| | - Dimitri Probst
- Institute for Theoretical Physics, Heidelberg University, Heidelberg, Germany. and BioQuant-Center for Quantitative Biology, Heidelberg University, Heidelberg, Germany
| | - Assaf Zemel
- Institute of Dental Sciences and Fritz Haber Center for Molecular Dynamics, Hebrew University of Jerusalem, 91120, Israel
| | - Ulrich S Schwarz
- Institute for Theoretical Physics, Heidelberg University, Heidelberg, Germany. and BioQuant-Center for Quantitative Biology, Heidelberg University, Heidelberg, Germany
| | - Sarah Köster
- Institute for X-Ray Physics, University of Goettingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany. and German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany
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38
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Yi X, Zou G, Gao H. Mechanics of cellular packing of nanorods with finite and non-uniform diameters. NANOSCALE 2018; 10:14090-14099. [PMID: 29999084 DOI: 10.1039/c8nr04110e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To understand the mechanics of cellular/intracellular packing of one-dimensional nanomaterials, we performed theoretical analysis and molecular dynamics simulations to investigate how the morphology and mechanical behaviors of a lipid vesicle are regulated by encapsulated rigid nanorods of finite and non-uniform diameters, including a cylindrical rod, a rod with widened ends, a cone-shaped rod, and a screwdriver-shaped rod. As the rod length increases, the vesicle evolves from a sphere into different shapes, such as a lemon, a conga drum, a cherry, a bowling pin, or a tubular shape for long and thick rods. The contact between the vesicle protrusion and the rod plays an important role in regulating the vesicle tubulation, membrane tension, and axial contact force on the rod. Our analysis provides a theoretical basis to understand a wide range of experiments on morphological transitions that occur in cellular packing of actin or microtubule bundles, mitotic cell division, and intracellular packing of carbon nanotubes.
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Affiliation(s)
- Xin Yi
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China and Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China.
| | - Guijin Zou
- School of Engineering, Brown University, Providence, Rhode Island 02912, USA.
| | - Huajian Gao
- School of Engineering, Brown University, Providence, Rhode Island 02912, USA.
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39
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Magiera MM, Singh P, Gadadhar S, Janke C. Tubulin Posttranslational Modifications and Emerging Links to Human Disease. Cell 2018; 173:1323-1327. [PMID: 29856952 DOI: 10.1016/j.cell.2018.05.018] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Tubulin posttranslational modifications are currently emerging as important regulators of the microtubule cytoskeleton and thus have a strong potential to be implicated in a number of disorders. Here, we review the latest advances in understanding the physiological roles of tubulin modifications and their links to a variety of pathologies.
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Affiliation(s)
- Maria M Magiera
- Institut Curie, PSL Research University, CNRS UMR3348, Orsay, France; Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.
| | - Puja Singh
- Institut Curie, PSL Research University, CNRS UMR3348, Orsay, France; Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France
| | - Sudarshan Gadadhar
- Institut Curie, PSL Research University, CNRS UMR3348, Orsay, France; Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France
| | - Carsten Janke
- Institut Curie, PSL Research University, CNRS UMR3348, Orsay, France; Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.
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40
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Paknikar AK, Eltzner B, Köster S. Direct characterization of cytoskeletal reorganization during blood platelet spreading. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2018; 144:166-176. [PMID: 29843920 DOI: 10.1016/j.pbiomolbio.2018.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/15/2018] [Accepted: 05/04/2018] [Indexed: 11/18/2022]
Abstract
Blood platelets are the key cellular players in blood clotting and thus of great biomedical importance. While spreading at the site of injury, they reorganize their cytoskeleton within minutes and assume a flat appearance. As platelets possess no nucleus, many standard methods for visualizing cytoskeletal components by means of fluorescence tags fail. Here we employ silicon-rhodamine actin and tubulin probes for imaging these important proteins in a time-resolved manner. We find two distinct timescales for platelet spread area development and for cytoskeletal reorganization, indicating that although cell spreading is most likely associated with actin polymerization at the cell edges, distinct, stress-fiber-like actin structures within the cell, which may be involved in the generation of contractile forces, form on their own timescale. Following microtubule dynamics allows us to distinguish the role of myosin, microtubules and actin during early spreading.
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Affiliation(s)
- Aishwarya K Paknikar
- Institute for X-Ray Physics, University of Goettingen, Göttingen, 37077, Germany
| | - Benjamin Eltzner
- Institute for Mathematical Stochastics, University of Goettingen, Göttingen, 37077, Germany
| | - Sarah Köster
- Institute for X-Ray Physics, University of Goettingen, Göttingen, 37077, Germany; DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany.
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41
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Abstract
We present a simple physically based quantitative model of blood platelet shape and its evolution during agonist-induced activation. The model is based on the consideration of two major cytoskeletal elements: the marginal band of microtubules and the submembrane cortex. Mathematically, we consider the problem of minimization of surface area constrained to confine the marginal band and a certain cellular volume. For resting platelets, the marginal band appears as a peripheral ring, allowing for the analytical solution of the minimization problem. Upon activation, the marginal band coils out of plane and forms 3D convoluted structure. We show that its shape is well approximated by an overcurved circle, a mathematical concept of closed curve with constant excessive curvature. Possible mechanisms leading to such marginal band coiling are discussed, resulting in simple parametric expression for the marginal band shape during platelet activation. The excessive curvature of marginal band is a convenient state variable which tracks the progress of activation. The cell surface is determined using numerical optimization. The shapes are strictly mathematically defined by only three parameters and show good agreement with literature data. They can be utilized in simulation of platelets interaction with different physical fields, e.g. for the description of hydrodynamic and mechanical properties of platelets, leading to better understanding of platelets margination and adhesion and thrombus formation in blood flow. It would also facilitate precise characterization of platelets in clinical diagnosis, where a novel optical model is needed for the correct solution of inverse light-scattering problem.
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42
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Adam F, Kauskot A, Kurowska M, Goudin N, Munoz I, Bordet JC, Huang JD, Bryckaert M, Fischer A, Borgel D, de Saint Basile G, Christophe OD, Ménasché G. Kinesin-1 Is a New Actor Involved in Platelet Secretion and Thrombus Stability. Arterioscler Thromb Vasc Biol 2018. [PMID: 29519941 DOI: 10.1161/atvbaha.117.310373] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Platelet secretion is crucial for many physiological platelet responses. Even though several regulators of the fusion machinery for secretory granule exocytosis have been identified in platelets, the underlying mechanisms are not yet fully characterized. APPROACH AND RESULTS By studying a mouse model (cKO [conditional knockout]Kif5b) lacking Kif5b (kinesin-1 heavy chain) in its megakaryocytes and platelets, we evidenced unstable hemostasis characterized by an increase of blood loss associated to a marked tendency to rebleed in a tail-clip assay and thrombus instability in an in vivo thrombosis model. This instability was confirmed in vitro in a whole-blood perfusion assay under blood flow conditions. Aggregations induced by thrombin and collagen were also impaired in cKOKif5b platelets. Furthermore, P-selectin exposure, PF4 (platelet factor 4) secretion, and ATP release after thrombin stimulation were impaired in cKOKif5b platelets, highlighting the role of kinesin-1 in α-granule and dense granule secretion. Importantly, exogenous ADP rescued normal thrombin induced-aggregation in cKOKif5b platelets, which indicates that impaired aggregation was because of defective release of ADP and dense granules. Last, we demonstrated that kinesin-1 interacts with the molecular machinery comprising the granule-associated Rab27 (Ras-related protein Rab-27) protein and the Slp4 (synaptotagmin-like protein 4/SYTL4) adaptor protein. CONCLUSIONS Our results indicate that a kinesin-1-dependent process plays a role for platelet function by acting into the mechanism underlying α-granule and dense granule secretion.
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Affiliation(s)
- Frédéric Adam
- From the INSERM, UMR_S 1176, Paris-Sud University, Université Paris-Saclay, Le Kremlin-Bicêtre, France (F.A., A.K., M.B., D.B., O.D.C.)
| | - Alexandre Kauskot
- From the INSERM, UMR_S 1176, Paris-Sud University, Université Paris-Saclay, Le Kremlin-Bicêtre, France (F.A., A.K., M.B., D.B., O.D.C.)
| | - Mathieu Kurowska
- INSERM, UMR_S 1163, Laboratory of Normal and Pathological Homeostasis of the Immune System, Paris, France (M.K., I.M., A.F., G.d.S.B., G.M.).,Imagine Institute (M.K., I.M., A.F., G.d.S.B., G.M.)
| | - Nicolas Goudin
- Cell Imaging Facility, Imagine Institute (N.G.), Paris Descartes University, Sorbonne Paris Cité, France
| | - Isabelle Munoz
- INSERM, UMR_S 1163, Laboratory of Normal and Pathological Homeostasis of the Immune System, Paris, France (M.K., I.M., A.F., G.d.S.B., G.M.).,Imagine Institute (M.K., I.M., A.F., G.d.S.B., G.M.)
| | - Jean-Claude Bordet
- Laboratoire d'Hémostase, Centre de Biologie Est, Hospices Civils de Lyon, Bron, France (J.-C.B.).,Laboratoire de Recherche sur l'Hémophilie, UCBL1, Lyon, France (J.-C.B.)
| | - Jian-Dong Huang
- School of Biomedical Sciences, The University of Hong Kong, China (J.-D.H.)
| | - Marijke Bryckaert
- From the INSERM, UMR_S 1176, Paris-Sud University, Université Paris-Saclay, Le Kremlin-Bicêtre, France (F.A., A.K., M.B., D.B., O.D.C.)
| | - Alain Fischer
- INSERM, UMR_S 1163, Laboratory of Normal and Pathological Homeostasis of the Immune System, Paris, France (M.K., I.M., A.F., G.d.S.B., G.M.).,Imagine Institute (M.K., I.M., A.F., G.d.S.B., G.M.).,Department of Immunology and Pediatric Hematology (A.F.)
| | - Delphine Borgel
- From the INSERM, UMR_S 1176, Paris-Sud University, Université Paris-Saclay, Le Kremlin-Bicêtre, France (F.A., A.K., M.B., D.B., O.D.C.).,Biological Hematology Service (D.B.), Necker Children's Hospital, Assistance Publique-Hôpitaux de Paris, France; and Collège de France, Paris (A.F.)
| | - Geneviève de Saint Basile
- INSERM, UMR_S 1163, Laboratory of Normal and Pathological Homeostasis of the Immune System, Paris, France (M.K., I.M., A.F., G.d.S.B., G.M.).,Imagine Institute (M.K., I.M., A.F., G.d.S.B., G.M.)
| | - Olivier D Christophe
- From the INSERM, UMR_S 1176, Paris-Sud University, Université Paris-Saclay, Le Kremlin-Bicêtre, France (F.A., A.K., M.B., D.B., O.D.C.)
| | - Gaël Ménasché
- INSERM, UMR_S 1163, Laboratory of Normal and Pathological Homeostasis of the Immune System, Paris, France (M.K., I.M., A.F., G.d.S.B., G.M.).,Imagine Institute (M.K., I.M., A.F., G.d.S.B., G.M.)
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43
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Brockman JM, Blanchard AT, Pui-Yan Ma V, Derricotte WD, Zhang Y, Fay ME, Lam WA, Evangelista FA, Mattheyses AL, Salaita K. Mapping the 3D orientation of piconewton integrin traction forces. Nat Methods 2018; 15:115-118. [PMID: 29256495 PMCID: PMC6116908 DOI: 10.1038/nmeth.4536] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 11/08/2017] [Indexed: 11/09/2022]
Abstract
Mechanical forces are integral to many biological processes; however, current techniques cannot map the magnitude and direction of piconewton molecular forces. Here, we describe molecular force microscopy, leveraging molecular tension probes and fluorescence polarization microscopy to measure the magnitude and 3D orientation of cellular forces. We mapped the orientation of integrin-based traction forces in mouse fibroblasts and human platelets, revealing alignment between the organization of force-bearing structures and their force orientations.
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Affiliation(s)
- Joshua M. Brockman
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, USA
- These authors contributed equally to this work
| | - Aaron T. Blanchard
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, USA
- These authors contributed equally to this work
| | | | - Wallace D. Derricotte
- Department of Chemistry, Emory University, Atlanta, Georgia, USA
- Present address: Department of Chemistry, Morehouse College, Atlanta, Georgia, USA
| | - Yun Zhang
- Department of Chemistry, Emory University, Atlanta, Georgia, USA
| | - Meredith E. Fay
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, USA
| | - Wilbur A. Lam
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, USA
| | | | - Alexa L. Mattheyses
- Department of Cell Biology, Emory University School of Medicine, Atlanta, Georgia, USA
- Present address: Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Khalid Salaita
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, USA
- Department of Chemistry, Emory University, Atlanta, Georgia, USA
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44
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Italiano JE, Hartwig JH. Megakaryocyte and Platelet Structure. Hematology 2018. [DOI: 10.1016/b978-0-323-35762-3.00124-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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45
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Adili R, Voigt EM, Bormann JL, Foss KN, Hurley LJ, Meyer ES, Veldman AJ, Mast KA, West JL, Whiteheart SW, Holinstat M, Larson MK. In vivo modeling of docosahexaenoic acid and eicosapentaenoic acid-mediated inhibition of both platelet function and accumulation in arterial thrombi. Platelets 2017; 30:271-279. [PMID: 29286871 DOI: 10.1080/09537104.2017.1420154] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Omega-3 polyunsaturated fatty acids (n-3 PUFAs) are associated with a variety of cellular alterations that mitigate cardiovascular disease. However, pinpointing the positive therapeutic effects is challenging due to inconsistent clinical trial results and overly simplistic in vitro studies. Here we aimed to develop realistic models of n-3 PUFA effects on platelet function so that preclinical results can better align with and predict clinical outcomes. Human platelets incubated with the n-3 PUFAs docosahexaenoic acid and eicosapentaenoic acid were stimulated with agonist combinations mirroring distinct regions of a growing thrombus. Platelet responses were then monitored in a number of ex-vivo functional assays. Furthermore, intravital microscopy was used to monitor arterial thrombosis and fibrin deposition in mice fed an n-3 PUFA-enriched diet. We found that n-3 PUFA treatment had minimal effects on many basic ex-vivo measures of platelet function using agonist combinations. However, n-3 PUFA treatment delayed platelet-derived thrombin generation in both humans and mice. This impaired thrombin production paralleled a reduced platelet accumulation within thrombi formed in either small arterioles or larger arteries of mice fed an n-3 PUFA-enriched diet, without impacting P-selectin exposure. Despite an apparent lack of robust effects in many ex-vivo assays of platelet function, increased exposure to n-3 PUFAs reduces platelet-mediated thrombin generation and attenuates elements of thrombus formation. These data support the cardioprotective value of-3 PUFAs and strongly suggest that they modify elements of platelet function in vivo.
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Affiliation(s)
- Reheman Adili
- a Department of Pharmacology , University of Michigan , Ann Arbor , MI , USA
| | - Ellen M Voigt
- b Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Jordan L Bormann
- b Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Kaitlynn N Foss
- b Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Luke J Hurley
- b Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Evan S Meyer
- b Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Amber J Veldman
- b Department of Biology , Augustana University , Sioux Falls , SD , USA
| | - Katherine A Mast
- a Department of Pharmacology , University of Michigan , Ann Arbor , MI , USA
| | - Joshua L West
- a Department of Pharmacology , University of Michigan , Ann Arbor , MI , USA
| | - Sidney W Whiteheart
- c Department of Molecular and Cellular Biochemistry , University of Kentucky , Lexington , KY , USA
| | - Michael Holinstat
- a Department of Pharmacology , University of Michigan , Ann Arbor , MI , USA
| | - Mark K Larson
- b Department of Biology , Augustana University , Sioux Falls , SD , USA
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46
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Belmonte JM, Leptin M, Nédélec F. A theory that predicts behaviors of disordered cytoskeletal networks. Mol Syst Biol 2017; 13:941. [PMID: 28954810 PMCID: PMC5615920 DOI: 10.15252/msb.20177796] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/31/2017] [Accepted: 09/05/2017] [Indexed: 12/31/2022] Open
Abstract
Morphogenesis in animal tissues is largely driven by actomyosin networks, through tensions generated by an active contractile process. Although the network components and their properties are known, and networks can be reconstituted in vitro, the requirements for contractility are still poorly understood. Here, we describe a theory that predicts whether an isotropic network will contract, expand, or conserve its dimensions. This analytical theory correctly predicts the behavior of simulated networks, consisting of filaments with varying combinations of connectors, and reveals conditions under which networks of rigid filaments are either contractile or expansile. Our results suggest that pulsatility is an intrinsic behavior of contractile networks if the filaments are not stable but turn over. The theory offers a unifying framework to think about mechanisms of contractions or expansion. It provides the foundation for studying a broad range of processes involving cytoskeletal networks and a basis for designing synthetic networks.
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Affiliation(s)
- Julio M Belmonte
- Directors's Research/Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Maria Leptin
- Directors's Research/Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - François Nédélec
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, Heidelberg, Germany
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47
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Seifert J, Rheinlaender J, Lang F, Gawaz M, Schäffer TE. Thrombin-induced cytoskeleton dynamics in spread human platelets observed with fast scanning ion conductance microscopy. Sci Rep 2017; 7:4810. [PMID: 28684746 PMCID: PMC5500533 DOI: 10.1038/s41598-017-04999-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 05/19/2017] [Indexed: 02/08/2023] Open
Abstract
Platelets are small anucleate blood cells involved in haemostasis. Platelet activation, caused by agonists such as thrombin or by contact with the extracellular matrix, leads to platelet adhesion, aggregation, and coagulation. Activated platelets undergo shape changes, adhere, and spread at the site of injury to form a blood clot. We investigated the morphology and morphological dynamics of human platelets after complete spreading using fast scanning ion conductance microscopy (SICM). In contrast to unstimulated platelets, thrombin-stimulated platelets showed increased morphological activity after spreading and exhibited dynamic morphological changes in the form of wave-like movements of the lamellipodium and dynamic protrusions on the platelet body. The increase in morphological activity was dependent on thrombin concentration. No increase in activity was observed following exposure to other activation agonists or during contact-induced activation. Inhibition of actin polymerization and inhibition of dynein significantly decreased the activity of thrombin-stimulated platelets. Our data suggest that these morphological dynamics after spreading are thrombin-specific and might play a role in coagulation and blood clot formation.
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Affiliation(s)
- Jan Seifert
- Institute of Applied Physics, University of Tübingen, Tübingen, Germany
| | | | - Florian Lang
- Department of Physiology, University of Tübingen, Tübingen, Germany
| | - Meinrad Gawaz
- Department of Cardiology and Cardiovascular Diseases, University of Tübingen, Tübingen, Germany
| | - Tilman E Schäffer
- Institute of Applied Physics, University of Tübingen, Tübingen, Germany.
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48
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Dmitrieff S, Alsina A, Mathur A, Nédélec FJ. Balance of microtubule stiffness and cortical tension determines the size of blood cells with marginal band across species. Proc Natl Acad Sci U S A 2017; 114:4418-4423. [PMID: 28400519 PMCID: PMC5410777 DOI: 10.1073/pnas.1618041114] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The fast bloodstream of animals is associated with large shear stresses. To withstand these conditions, blood cells have evolved a special morphology and a specific internal architecture to maintain their integrity over several weeks. For instance, nonmammalian red blood cells, mammalian erythroblasts, and platelets have a peripheral ring of microtubules, called the marginal band, that flattens the overall cell morphology by pushing on the cell cortex. In this work, we model how the shape of these cells stems from the balance between marginal band rigidity and cortical tension. We predict that the diameter of the cell scales with the total microtubule polymer and verify the predicted law across a wide range of species. Our analysis also shows that the combination of the marginal band rigidity and cortical tension increases the ability of the cell to withstand forces without deformation. Finally, we model the marginal band coiling that occurs during the disk-to-sphere transition observed, for instance, at the onset of blood platelet activation. We show that when cortical tension increases faster than cross-linkers can unbind, the marginal band will coil, whereas if the tension increases more slowly, the marginal band may shorten as microtubules slide relative to each other.
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Affiliation(s)
- Serge Dmitrieff
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Adolfo Alsina
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Aastha Mathur
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - François J Nédélec
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
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49
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Ngo ATP, Thierheimer MLD, Babur Ö, Rocheleau AD, Huang T, Pang J, Rigg RA, Mitrugno A, Theodorescu D, Burchard J, Nan X, Demir E, McCarty OJT, Aslan JE. Assessment of roles for the Rho-specific guanine nucleotide dissociation inhibitor Ly-GDI in platelet function: a spatial systems approach. Am J Physiol Cell Physiol 2017; 312:C527-C536. [PMID: 28148498 PMCID: PMC5407014 DOI: 10.1152/ajpcell.00274.2016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 01/25/2017] [Accepted: 01/25/2017] [Indexed: 12/29/2022]
Abstract
On activation at sites of vascular injury, platelets undergo morphological alterations essential to hemostasis via cytoskeletal reorganizations driven by the Rho GTPases Rac1, Cdc42, and RhoA. Here we investigate roles for Rho-specific guanine nucleotide dissociation inhibitor proteins (RhoGDIs) in platelet function. We find that platelets express two RhoGDI family members, RhoGDI and Ly-GDI. Whereas RhoGDI localizes throughout platelets in a granule-like manner, Ly-GDI shows an asymmetric, polarized localization that largely overlaps with Rac1 and Cdc42 as well as microtubules and protein kinase C (PKC) in platelets adherent to fibrinogen. Antibody interference and platelet spreading experiments suggest a specific role for Ly-GDI in platelet function. Intracellular signaling studies based on interactome and pathways analyses also support a regulatory role for Ly-GDI, which is phosphorylated at PKC substrate motifs in a PKC-dependent manner in response to the platelet collagen receptor glycoprotein (GP) VI-specific agonist collagen-related peptide. Additionally, PKC inhibition diffuses the polarized organization of Ly-GDI in spread platelets relative to its colocalization with Rac1 and Cdc42. Together, our results suggest a role for Ly-GDI in the localized regulation of Rho GTPases in platelets and hypothesize a link between the PKC and Rho GTPase signaling systems in platelet function.
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Affiliation(s)
- Anh T P Ngo
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Marisa L D Thierheimer
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon.,School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, Oregon; and
| | - Özgün Babur
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon.,Computational Biology Program, Oregon Health & Science University, Portland, Oregon
| | - Anne D Rocheleau
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Tao Huang
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Jiaqing Pang
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Rachel A Rigg
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Annachiara Mitrugno
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Dan Theodorescu
- Department of Surgery, Department of Pharmacology, and Comprehensive Cancer Center University of Colorado, Aurora, Colorado
| | - Julja Burchard
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon
| | - Xiaolin Nan
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon
| | - Emek Demir
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, Oregon.,Computational Biology Program, Oregon Health & Science University, Portland, Oregon
| | - Owen J T McCarty
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon.,Department of Cell, Developmental & Cancer Biology, Oregon Health & Science University, Portland, Oregon.,Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, Oregon
| | - Joseph E Aslan
- Knight Cardiovascular Institute, School of Medicine, Oregon Health & Science University, Portland, Oregon;
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Litvinenko A, Moskalensky A, Karmadonova N, Nekrasov V, Strokotov D, Konokhova A, Yurkin M, Pokushalov E, Chernyshev A, Maltsev V. Fluorescence-free flow cytometry for measurement of shape index distribution of resting, partially activated, and fully activated platelets. Cytometry A 2016; 89:1010-1016. [DOI: 10.1002/cyto.a.23003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 09/01/2016] [Accepted: 10/05/2016] [Indexed: 11/11/2022]
Affiliation(s)
- A.L. Litvinenko
- Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk Russian Federation
- Novosibirsk State University; Novosibirsk Russian Federation
| | - A.E. Moskalensky
- Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk Russian Federation
- Novosibirsk State University; Novosibirsk Russian Federation
| | - N.A. Karmadonova
- State Research Institute of Circulation Pathology; Novosibirsk Russian Federation
| | - V.M. Nekrasov
- Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk Russian Federation
- Novosibirsk State University; Novosibirsk Russian Federation
| | - D.I. Strokotov
- Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk Russian Federation
- Novosibirsk State Medical University; Novosibirsk Russian Federation
| | - A.I. Konokhova
- Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk Russian Federation
| | - M.A. Yurkin
- Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk Russian Federation
- Novosibirsk State University; Novosibirsk Russian Federation
| | - E.A. Pokushalov
- State Research Institute of Circulation Pathology; Novosibirsk Russian Federation
| | - A.V. Chernyshev
- Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk Russian Federation
- Novosibirsk State University; Novosibirsk Russian Federation
| | - V.P. Maltsev
- Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk Russian Federation
- Novosibirsk State University; Novosibirsk Russian Federation
- Novosibirsk State Medical University; Novosibirsk Russian Federation
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