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Ellis ML, Terreaux A, Alwis I, Smythe R, Perdomo J, Eckly A, Cranmer SL, Passam FH, Maclean J, Schoenwaelder SM, Ruggeri ZM, Lanza F, Taoudi S, Yuan Y, Jackson SP. GPIbα-filamin A interaction regulates megakaryocyte localization and budding during platelet biogenesis. Blood 2024; 143:342-356. [PMID: 37922495 DOI: 10.1182/blood.2023021292] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/27/2023] [Accepted: 10/24/2023] [Indexed: 11/05/2023] Open
Abstract
ABSTRACT Glycoprotein Ibα (GPIbα) is expressed on the surface of platelets and megakaryocytes (MKs) and anchored to the membrane skeleton by filamin A (flnA). Although GPIb and flnA have fundamental roles in platelet biogenesis, the nature of this interaction in megakaryocyte biology remains ill-defined. We generated a mouse model expressing either human wild-type (WT) GPIbα (hGPIbαWT) or a flnA-binding mutant (hGPIbαFW) and lacking endogenous mouse GPIbα. Mice expressing the mutant GPIbα transgene exhibited macrothrombocytopenia with preserved GPIb surface expression. Platelet clearance was normal and differentiation of MKs to proplatelets was unimpaired in hGPIbαFW mice. The most striking abnormalities in hGPIbαFW MKs were the defective formation of the demarcation membrane system (DMS) and the redistribution of flnA from the cytoplasm to the peripheral margin of MKs. These abnormalities led to disorganized internal MK membranes and the generation of enlarged megakaryocyte membrane buds. The defective flnA-GPIbα interaction also resulted in misdirected release of buds away from the vasculature into bone marrow interstitium. Restoring the linkage between flnA and GPIbα corrected the flnA redistribution within MKs and DMS ultrastructural defects as well as restored normal bud size and release into sinusoids. These studies define a new mechanism of macrothrombocytopenia resulting from dysregulated MK budding. The link between flnA and GPIbα is not essential for the MK budding process, however, it plays a major role in regulating the structure of the DMS, bud morphogenesis, and the localized release of buds into the circulation.
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Affiliation(s)
- Marc L Ellis
- Thrombosis Research Group, The Heart Institute, Newtown, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
| | - Antoine Terreaux
- Blood Cell Formation Lab, Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Imala Alwis
- Thrombosis Research Group, The Heart Institute, Newtown, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
| | - Rhyll Smythe
- Thrombosis Research Group, The Heart Institute, Newtown, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
| | - Jose Perdomo
- Haematology Research Unit, St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Anita Eckly
- Université de Strasbourg, INSERM, French Blood Establishment (EFS) Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Susan L Cranmer
- Eastern Health Clinical School, Monash University, Box Hill, VIC, Australia
| | - Freda H Passam
- Thrombosis Research Group, The Heart Institute, Newtown, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
| | - Jessica Maclean
- Thrombosis Research Group, The Heart Institute, Newtown, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
| | - Simone M Schoenwaelder
- Thrombosis Research Group, The Heart Institute, Newtown, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
- School of Medical Sciences, University of Sydney, Camperdown, NSW, Australia
| | - Zaverio M Ruggeri
- Department of Molecular Medicine, MERU-Roon Research Center on Vascular Biology, The Scripps Research Institute, La Jolla, CA
| | - Francois Lanza
- Université de Strasbourg, INSERM, French Blood Establishment (EFS) Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Samir Taoudi
- Blood Cell Formation Lab, Walter and Eliza Hall Institute, Parkville, VIC, Australia
- The University of Melbourne, Parkville, VIC, Australia
| | - Yuping Yuan
- Thrombosis Research Group, The Heart Institute, Newtown, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
| | - Shaun P Jackson
- Thrombosis Research Group, The Heart Institute, Newtown, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
- Department of Molecular Medicine, MERU-Roon Research Center on Vascular Biology, The Scripps Research Institute, La Jolla, CA
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2
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Tacquard C, Tupin F, Magnenat S, Brouard N, Eckly A, Proamer F, Metz-Favre C, Stenger R, Piotin A, De Blay F, Ebo D, Elst J, Mertes PM, Hechler B. Human platelets do not possess the FcεRI and FcεRII receptors for IgE. Allergy 2023; 78:3278-3281. [PMID: 37897054 DOI: 10.1111/all.15935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 09/25/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023]
Affiliation(s)
- Charles Tacquard
- Université de Strasbourg, INSERM, Établissement Français du Sang (EFS) Grand Est, BPPS UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Department of Anesthesia and Intensive Care, Strasbourg University Hospital, Strasbourg, France
| | - Florian Tupin
- Université de Strasbourg, INSERM, Établissement Français du Sang (EFS) Grand Est, BPPS UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Stéphanie Magnenat
- Université de Strasbourg, INSERM, Établissement Français du Sang (EFS) Grand Est, BPPS UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Nathalie Brouard
- Université de Strasbourg, INSERM, Établissement Français du Sang (EFS) Grand Est, BPPS UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Anita Eckly
- Université de Strasbourg, INSERM, Établissement Français du Sang (EFS) Grand Est, BPPS UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Fabienne Proamer
- Université de Strasbourg, INSERM, Établissement Français du Sang (EFS) Grand Est, BPPS UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Carine Metz-Favre
- Department of Pneumology and Allergology, Strasbourg University Hospital, Strasbourg, France
| | - Rodolphe Stenger
- Department of Pneumology and Allergology, Strasbourg University Hospital, Strasbourg, France
| | - Anays Piotin
- Department of Pneumology and Allergology, Strasbourg University Hospital, Strasbourg, France
| | - Frédéric De Blay
- Department of Pneumology and Allergology, Strasbourg University Hospital, Strasbourg, France
| | - Didier Ebo
- Department of Immunology, Allergology, Rheumatology and the Infla-Med Centre of Excellence, Faculty of Medicine and Health Sciences, University of Antwerp and Antwerp University Hospital, Antwerpen, Belgium
- Department of Immunology and Allergology, AZ Jan Palfijn Gent, Ghent, Belgium
| | - Jessy Elst
- Department of Immunology, Allergology, Rheumatology and the Infla-Med Centre of Excellence, Faculty of Medicine and Health Sciences, University of Antwerp and Antwerp University Hospital, Antwerpen, Belgium
| | - Paul Michel Mertes
- Université de Strasbourg, INSERM, Établissement Français du Sang (EFS) Grand Est, BPPS UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Department of Anesthesia and Intensive Care, Strasbourg University Hospital, Strasbourg, France
| | - Béatrice Hechler
- Université de Strasbourg, INSERM, Établissement Français du Sang (EFS) Grand Est, BPPS UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
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3
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Pongérard A, Mallo L, Do Sacramento V, Boiron O, Eckly A, Gachet C, Lanza F, Knapp Y, Strassel C. Development of an efficient, ready to use, blood platelet-release device based on two new flow regime parameters: The periodic hydrodynamic loading and the shear stress accumulation. N Biotechnol 2023; 77:68-79. [PMID: 37442418 DOI: 10.1016/j.nbt.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/13/2023] [Accepted: 07/09/2023] [Indexed: 07/15/2023]
Abstract
In vitro production of blood platelets for transfusion purposes is gaining interest. While platelet production is now possible on a laboratory scale, the challenge is to move towards industrial production. Attaining this goal calls for the development of platelet release devices capable of producing large quantities of platelets. To this end, we have developed a continuous-flow platelet release device composed of five spherical chambers each containing two calibrated cones placed in a staggered configuration. Following perfusion of proplatelet-bearing cultured megakaryocytes, the device achieves a high yield of about 100 bona-fide platelets/megakaryocyte, at a flow rate of ∼80 mL/min. Performances and operating conditions comply with the requirements of large-scale platelet production. Moreover, this device enabled an in-depth analysis of the flow regimes through Computational Fluid Dynamics (CFD). This revealed two new universal parameters to be taken into account for an optimal platelet release: i.e. a periodic hydrodynamic load and a sufficient accumulation of shear stress. An efficient 16 Pa.s shear stress accumulation is obtained in our system at a flow rate of 80 mL/min.
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Affiliation(s)
- Anaïs Pongérard
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, F-67065 Strasbourg, France
| | - Léa Mallo
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, F-67065 Strasbourg, France
| | - Valentin Do Sacramento
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, F-67065 Strasbourg, France
| | - Olivier Boiron
- CNRS, Université Aix-Marseille, Ecole Centrale Marseille, IRPHE UMR7342, F-13000 Marseille, France
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, F-67065 Strasbourg, France
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, F-67065 Strasbourg, France
| | - François Lanza
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, F-67065 Strasbourg, France
| | - Yannick Knapp
- Université Avignon, LAPEC UPR-4278, F-84000 Avignon, France
| | - Catherine Strassel
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, F-67065 Strasbourg, France.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Guinard I, Nguyen T, Brassard-Jollive N, Weber J, Ruch L, Reininger L, Brouard N, Eckly A, Collin D, Lanza F, Léon C. Matrix stiffness controls megakaryocyte adhesion, fibronectin fibrillogenesis, and proplatelet formation through Itgβ3. Blood Adv 2023; 7:4003-4018. [PMID: 37171626 PMCID: PMC10410137 DOI: 10.1182/bloodadvances.2022008680] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 05/13/2023] Open
Abstract
Megakaryocytes (MKs) are the precursor cells of platelets, located in the bone marrow (BM). Once mature, they extend elongated projections named proplatelets through sinusoid vessels, emerging from the marrow stroma into the circulating blood. Not all signals from the microenvironment that regulate proplatelet formation are understood, particularly those from the BM biomechanics. We sought to investigate how MKs perceive and adapt to modifications of the stiffness of their environment. Although the BM is one of the softest tissue of the body, its rigidification results from excess fibronectin (FN), and other matrix protein deposition occur upon myelofibrosis. Here, we have shown that mouse MKs are able to detect the stiffness of a FN-coated substrate and adapt their morphology accordingly. Using a polydimethylsiloxane substrate with stiffness varying from physiological to pathological marrow, we found that a stiff matrix favors spreading, intracellular contractility, and FN fibrils assembly at the expense of proplatelet formation. Itgb3, but not Itgb1, is required for stiffness sensing, whereas both integrins are involved in fibrils assembly. In contrast, soft substrates promote proplatelet formation in an Itgb3-dependent manner, consistent with the ex vivo decrease in proplatelet formation and the in vivo decrease in platelet number in Itgb3-deficient mice. Our findings demonstrate the importance of environmental stiffness for MK functions with potential pathophysiological implications during pathologies that deregulate FN deposition and modulate stiffness in the marrow.
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Affiliation(s)
- Ines Guinard
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Thao Nguyen
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Noémie Brassard-Jollive
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Josiane Weber
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Laurie Ruch
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Laura Reininger
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Nathalie Brouard
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Anita Eckly
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | | | - François Lanza
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Catherine Léon
- UMR_S1255, INSERM, Etablissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
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Angénieux C, Couvidou A, Brouard N, Eckly A, Dupuis A, Mangin PH, Maître B. Discriminating young platelets on human leukocyte antigen-I expression highlights their extremely high reactivity potential. Res Pract Thromb Haemost 2023; 7:100006. [PMID: 36970736 PMCID: PMC10031328 DOI: 10.1016/j.rpth.2022.100006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/19/2022] [Accepted: 11/14/2022] [Indexed: 02/16/2023] Open
Abstract
Background The platelet population is heterogeneous, with different subsets that differ on the basis of their function and reactivity. An intrinsic factor participating in this difference of reactivity could be the platelet age. The lack of relevant tools allowing a formal identification of young platelets prevents so far to draw solid conclusions regarding platelet reactivity. We recently reported that human leukocyte antigen-I (HLA-I) molecules are more expressed on human young platelets. Objectives The aim of this study was to assess platelet reactivity according to their age based on HLA-I expression level. Methods Platelet activation was assessed by flow cytometry (FC) for different platelet subsets based on their HLA-I expression. These populations were further cell sorted and their intrinsic properties were determined by FC and electron microscopy (EM). Statistical analyses were performed with GraphPad Prism 5.02 software using two-way ANOVA followed by a Tukey post hoc test. Results HLA-I expression level allowed the identification of 3 platelet subpopulations regarding to their age (HLA low, dim, and high). HLA-I was reliable to guide platelet cell sorting and highlighted the features of young platelets in the HLA-Ihigh population. In response to different soluble agonists, HLA-Ihigh platelets were the most reactive subset as shown by the level of P-selectin secretion and fibrinogen binding assessed by flow cytometry. Moreover, the highest capacity of HLA-Ihigh platelets to simultaneously express annexin-V and von Willebrand factor or activated αIIbβ3 after coactivation with TRAP and CRP indicated that the procoagulant feature of platelets was age-related. Conclusion The young HLA-Ihigh population is the most reactive and prone to become procoagulant. These results open up new perspectives to investigate deeply the role of young and old platelets.
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Affiliation(s)
- Catherine Angénieux
- UMR_S1255, INSERM, Strasbourg, France
- Etablissement Français du Sang-Grand Est, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Adèle Couvidou
- UMR_S1255, INSERM, Strasbourg, France
- Etablissement Français du Sang-Grand Est, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Nathalie Brouard
- UMR_S1255, INSERM, Strasbourg, France
- Etablissement Français du Sang-Grand Est, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Anita Eckly
- UMR_S1255, INSERM, Strasbourg, France
- Etablissement Français du Sang-Grand Est, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Arnaud Dupuis
- UMR_S1255, INSERM, Strasbourg, France
- Etablissement Français du Sang-Grand Est, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Pierre H. Mangin
- UMR_S1255, INSERM, Strasbourg, France
- Etablissement Français du Sang-Grand Est, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Blandine Maître
- UMR_S1255, INSERM, Strasbourg, France
- Etablissement Français du Sang-Grand Est, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
- Correspondence Blandine Maître, UMR_S1255 INSERM, Université de Strasbourg, Etablissement Français du Sang-Grand Est, 10 rue Spielmann, BP 36, F-67065 Strasbourg Cedex, France.
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7
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Feng M, Hechler B, Adam F, Gachet C, Eckly A, Kauskot A, Denis CV, Bryckaert M, Bobe R, Rosa JP. ADP receptor P2Y12 is the capstone of the cross-talk between Ca2+ mobilization pathways dependent on Ca2+ ATPases sarcoplasmic/endoplasmic reticulum type 3 and type 2b in platelets. Res Pract Thromb Haemost 2022; 7:100004. [PMID: 36970741 PMCID: PMC10031336 DOI: 10.1016/j.rpth.2022.100004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 01/07/2023] Open
Abstract
Background Blood platelet Ca2+ stores are regulated by 2 Ca2+-ATPases (SERCA2b and SERCA3). On thrombin stimulation, nicotinic acid adenosine dinucleotide phosphate mobilizes SERCA3-dependent stores, inducing early adenosine 5'-diphosphate (ADP) secretion, potentiating later SERCA2b-dependent secretion. Objectives The aim of this study was to identify which ADP P2 purinergic receptor (P2Y1 and/or P2Y12) is(are) involved in the amplification of platelet secretion dependent on the SERCA3-dependent Ca2+ mobilization pathway (SERCA3 stores mobilization) as triggered by low concentration of thrombin. Methods The study used the pharmacologic antagonists MRS2719 and AR-C69931MX, of the P2Y1 and P2Y12, respectively, as well as Serca3 -/- mice and mice exhibiting platelet lineage-specific inactivation of the P2Y1 or P2Y12 genes. Results We found that in mouse platelets, pharmacological blockade or gene inactivation of P2Y12 but not of P2Y1 led to a marked inhibition of ADP secretion after platelet stimulation with low concentration of thrombin. Likewise, in human platelets, pharmacological inhibition of P2Y12 but not of P2Y1 alters amplification of thrombin-elicited secretion through SERCA2b stores mobilization. Finally, we show that early SERCA3 stores secretion of ADP is a dense granule secretion, based on parallel adenosine triphosphate and serotonin early secretion. Furthermore, early secretion involves a single granule, based on the amount of adenosine triphosphate released. Conclusion Altogether, these results show that at low concentrations of thrombin, SERCA3- and SERCA2b-dependent Ca2+ mobilization pathways cross-talk via ADP and activation of the P2Y12, and not the P2Y1 ADP receptor. The relevance in hemostasis of the coupling of the SERCA3 and the SERCA2b pathways is reviewed.
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8
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Sissoko A, Fricot-Monsinjon A, Roussel C, Manceau S, Dumas L, Capito C, Allali S, Yekkache N, Dussiot M, Nguyen Y, Des Ylouses AL, Aussilhou B, Tichit M, Hardy D, Maître B, Eckly A, De Montalembert M, Cavazzana M, Joseph L, Buffet P. Erythrocytic vacuoles that accumulate a fluorescent dye predict spleen size and function in sickle cell disease. Am J Hematol 2022; 97:E385-E388. [PMID: 36056794 PMCID: PMC9561039 DOI: 10.1002/ajh.26690] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 01/28/2023]
Affiliation(s)
- Abdoulaye Sissoko
- Université Paris Cité and Université des Antilles, Inserm, BIGR, F-75015, Paris, France
| | | | - Camille Roussel
- Université Paris Cité and Université des Antilles, Inserm, BIGR, F-75015, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
- Assistance publique des hôpitaux de Paris, Paris, France
| | - Sandra Manceau
- Laboratoire d’Excellence GR-Ex, Paris, France
- Assistance publique des hôpitaux de Paris, Paris, France
| | - Lucie Dumas
- Université Paris Cité and Université des Antilles, Inserm, BIGR, F-75015, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
| | - Carmen Capito
- Assistance publique des hôpitaux de Paris, Paris, France
| | - Slimane Allali
- Assistance publique des hôpitaux de Paris, Paris, France
| | - Narjis Yekkache
- Université Paris Cité and Université des Antilles, Inserm, BIGR, F-75015, Paris, France
| | - Michael Dussiot
- Université de Paris, U1163, Mécanismes cellulaires et moléculaires des désordres hématologiques et implications thérapeutiques, INSERM, Paris, France
| | - Yann Nguyen
- Assistance publique des hôpitaux de Paris, Paris, France
| | | | | | - Magali Tichit
- Institut Pasteur, Université de Paris, Unité Neuropathologie expérimentale, Paris, France
| | - David Hardy
- Institut Pasteur, Université de Paris, Unité Neuropathologie expérimentale, Paris, France
| | - Blandine Maître
- Université de Strasbourg, UMR_S1255, INSERM, Établissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Anita Eckly
- Université de Strasbourg, UMR_S1255, INSERM, Établissement Français du Sang-Grand Est, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | | | | | - Laure Joseph
- Assistance publique des hôpitaux de Paris, Paris, France
| | - Pierre Buffet
- Université Paris Cité and Université des Antilles, Inserm, BIGR, F-75015, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
- Assistance publique des hôpitaux de Paris, Paris, France
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9
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Lee RH, Ghalloussi D, Harousseau GL, Kenny JP, Kramer PA, Proamer F, Nieswandt B, Flick MJ, Gachet C, Casari C, Eckly A, Bergmeier W. Rasa3 deficiency minimally affects thrombopoiesis but promotes severe thrombocytopenia due to integrin-dependent platelet clearance. JCI Insight 2022; 7:e155676. [PMID: 35290242 PMCID: PMC9089782 DOI: 10.1172/jci.insight.155676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 03/09/2022] [Indexed: 01/26/2023] Open
Abstract
Platelet homeostasis is dependent on a tight regulation of both platelet production and clearance. The small GTPase Rap1 mediates platelet adhesion and hemostatic plug formation. However, Rap1 signaling is also critical for platelet homeostasis as both Rap1 deficiency and uninhibited Rap1 signaling lead to marked thrombocytopenia in mice. Here, we investigated the mechanism by which deficiency in Rasa3, a critical negative regulator of Rap1, causes macrothrombocytopenia in mice. Despite marked morphological and ultrastructural abnormalities, megakaryocytes in hypomorphic Rasa3hlb/hlb (R3hlb/hlb) or Rasa3-/- mice demonstrated robust proplatelet formation in vivo, suggesting that defective thrombopoiesis is not the main cause of thrombocytopenia. Rather, we observed that R3hlb/hlb platelets became trapped in the spleen marginal zone/red pulp interface, with evidence of platelet phagocytosis by macrophages. Clearance of mutant platelets was also observed in the liver, especially in splenectomized mice. Platelet count and platelet life span in Rasa3-mutant mice were restored by genetic or pharmacological approaches to inhibit the Rap1/talin1/αIIbβ3 integrin axis. A similar pattern of splenic clearance was observed in mice injected with anti-αIIbβ3 but not anti-glycoprotein Ibα platelet-depleting antibodies. In summary, we describe a potentially novel, integrin-based mechanism of platelet clearance that could be critical for our understanding of select inherited and acquired thrombocytopenias.
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Affiliation(s)
- Robert H. Lee
- Department of Biochemistry and Biophysics and
- Blood Research Center, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
| | - Dorsaf Ghalloussi
- Department of Biochemistry and Biophysics and
- Blood Research Center, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
| | | | | | | | - Fabienne Proamer
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67065 Strasbourg, France
| | - Bernhard Nieswandt
- Institute of Experimental Biomedicine I, University Hospital Würzburg, Würzburg, Germany
- Rudolf Virchow Center, University of Würzburg, Würzburg, Germany
| | - Matthew J. Flick
- Blood Research Center, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
- Department of Pathology and Laboratory Medicine, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67065 Strasbourg, France
| | - Caterina Casari
- Department of Biochemistry and Biophysics and
- HITh, UMR_S1176, INSERM, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67065 Strasbourg, France
| | - Wolfgang Bergmeier
- Department of Biochemistry and Biophysics and
- Blood Research Center, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
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10
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Oprescu A, Michel D, Antkowiak A, Vega E, Viaud J, Courtneidge SA, Eckly A, de la Salle H, Chicanne G, Léon C, Payrastre B, Gaits-Iacovoni F. Megakaryocytes form linear podosomes devoid of digestive properties to remodel medullar matrix. Sci Rep 2022; 12:6255. [PMID: 35428815 PMCID: PMC9012751 DOI: 10.1038/s41598-022-10215-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 04/01/2022] [Indexed: 12/20/2022] Open
Abstract
Bone marrow megakaryocytes (MKs) undergo a maturation involving contacts with the microenvironment before extending proplatelets through sinusoids to deliver platelets in the bloodstream. We demonstrated that MKs assemble linear F-actin-enriched podosomes on collagen I fibers. Microscopy analysis evidenced an inverse correlation between the number of dot-like versus linear podosomes over time. Confocal videomicroscopy confirmed that they derived from each-other. This dynamics was dependent on myosin IIA. Importantly, MKs progenitors expressed the Tks4/5 adaptors, displayed a strong gelatinolytic ability and did not form linear podosomes. While maturing, MKs lost Tks expression together with digestive ability. However, those MKs were still able to remodel the matrix by exerting traction on collagen I fibers through a collaboration between GPVI, ß1 integrin and linear podosomes. Our data demonstrated that a change in structure and composition of podosomes accounted for the shift of function during megakaryopoiesis. These data highlight the fact that members of the invadosome family could correspond to different maturation status of the same entity, to adapt to functional responses required by differentiation stages of the cell that bears them.
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Affiliation(s)
- Antoine Oprescu
- INSERM, UMR1297, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - Déborah Michel
- INSERM, UMR1297, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - Adrien Antkowiak
- INSERM, UMR1297, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - Elodie Vega
- INSERM, UMR1297, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - Julien Viaud
- INSERM, UMR1297, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - Sara A Courtneidge
- Department of Cell, Development and Cancer Biology, Oregon Health & Science University, Oregon, USA
| | - Anita Eckly
- INSERM, UMR_S1255, Université de Strasbourg, Etablissement Français du Sang-GEST, Strasbourg, France
| | - Henri de la Salle
- INSERM, UMR_S1255, Université de Strasbourg, Etablissement Français du Sang-GEST, Strasbourg, France
| | - Gaëtan Chicanne
- INSERM, UMR1297, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - Catherine Léon
- INSERM, UMR_S1255, Université de Strasbourg, Etablissement Français du Sang-GEST, Strasbourg, France
| | - Bernard Payrastre
- INSERM, UMR1297, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France.,CHU de Toulouse, laboratoire d'Hématologie, Toulouse, France
| | - Frédérique Gaits-Iacovoni
- INSERM, UMR1297, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France. .,Molecular, Cellular and Developmental Biology Department (MCD, UMR5077), Centre de Biologie Intégrative (CBI, FR3743), University of Toulouse, CNRS, UPS, 31062, Toulouse, France.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Kimmerlin Q, Dupuis A, Bodakuntla S, Weber C, Heim V, Henriot V, Moog S, Eckly A, Guéguen P, Ferec C, Gachet C, Janke C, Lanza F. Mutations in the most divergent α-tubulin isotype, α8-tubulin, cause defective platelet biogenesis. J Thromb Haemost 2022; 20:461-469. [PMID: 34704371 DOI: 10.1111/jth.15573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/12/2021] [Accepted: 10/25/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND In the panel of genes commonly associated with inherited macrothrombocytopenia, an important fraction encodes key cytoskeletal proteins such as tubulin isotypes, the building blocks of microtubules. Macrothrombocytopenia-causing mutations have been identified in the TUBB1 and TUBA4A genes, emphasizing their importance in the formation of platelets and their marginal band, a unique microtubule ring-like structure that supports the platelet typical disc-shaped morphology. This raised the hypothesis that other tubulin isotypes normally expressed in platelets could play a similar role in their formation. OBJECTIVES To assess whether tubulin isotype genes other than TUBA4A and TUBB1 could be implicated in inherited macrothrombocytopenia. METHODS We used high throughput sequencing to screen a cohort of 448 French blood donors with mild thrombocytopenia for mutations in a panel of selected genes known or suspected to be involved in platelet biogenesis. RESULTS We identified six distinct novel mutations in TUBA8, which encodes the most-divergent α-tubulin, as the causative determinant of macrothrombocytopenia and platelet marginal band defects. Functionally, all TUBA8 mutations were found to fully or partially inhibit the incorporation of the mutated α8-tubulin in the microtubule network. CONCLUSION This study provides strong support for a key role of multiple tubulin genes in platelet biogenesis by discovering variants in a tubulin gene that was previously not known to be important for platelets.
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Affiliation(s)
- Quentin Kimmerlin
- Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Arnaud Dupuis
- Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Satish Bodakuntla
- Institut Curie, CNRS UMR3348, Paris-Sciences-et-Lettres Research University, Orsay, France
- CNRS UMR3348, Université Paris Sud, Université Paris-Saclay, Orsay, France
- Laboratory of Structural Cell Biology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Claire Weber
- Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Véronique Heim
- Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Véronique Henriot
- Institut Curie, CNRS UMR3348, Paris-Sciences-et-Lettres Research University, Orsay, France
- CNRS UMR3348, Université Paris Sud, Université Paris-Saclay, Orsay, France
| | - Sylvie Moog
- Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Anita Eckly
- Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Paul Guéguen
- Laboratoire de génétique moléculaire et d'histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France
| | - Claude Ferec
- Laboratoire de génétique moléculaire et d'histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France
| | - Christian Gachet
- Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Carsten Janke
- Institut Curie, CNRS UMR3348, Paris-Sciences-et-Lettres Research University, Orsay, France
- CNRS UMR3348, Université Paris Sud, Université Paris-Saclay, Orsay, France
| | - François Lanza
- Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
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13
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Affiliation(s)
- François Lanza
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67065 Strasbourg, France
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67065 Strasbourg, France
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67065 Strasbourg, France;
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14
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Janus-Bell E, Yakusheva A, Scandola C, Receveur N, Ahmed UM, Mouriaux C, Bourdon C, Loubière C, Eckly A, Senis YA, Panteleev MA, Gachet C, Mangin PH. Characterization of the Role of Integrin α5β1 in Platelet Function, Hemostasis, and Experimental Thrombosis. Thromb Haemost 2021; 122:767-776. [PMID: 34598304 PMCID: PMC9197593 DOI: 10.1055/a-1659-6214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Objective
Integrins are key regulators of various platelet functions. The pathophysiological importance of most platelet integrins has been investigated, with the exception of α5β1, a receptor for fibronectin. The aim of this study was to characterize the role of α5β1 in megakaryopoiesis, platelet function, and to determine its importance in hemostasis and arterial thrombosis.
Approach and Results
We generated a mouse strain deficient for integrin α5β1 on megakaryocytes and platelets (PF4Cre-α5
−/−
). PF4Cre-α5
−/−
mice were viable, fertile, and presented no apparent signs of abnormality. Megakaryopoiesis appears unaltered as evidence by a normal megakaryocyte morphology and development, which is in agreement with a normal platelet count. Expression of the main platelet receptors and the response of PF4Cre-α5
−/−
platelets to a series of agonists were all completely normal. Adhesion and aggregation of PF4Cre-α5
−/−
platelets under shear flow on fibrinogen, laminin, or von Willebrand factor were unimpaired. In contrast, PF4Cre-α5
−/−
platelets displayed a marked decrease in adhesion, activation, and aggregation on fibrillar cellular fibronectin and collagen. PF4Cre-α5
−/−
mice presented no defect in a tail-bleeding time assay and no increase in inflammatory bleeding in a reverse passive Arthus model and a lipopolysaccharide pulmonary inflammation model. Finally, no defects were observed in three distinct experimental models of arterial thrombosis based on ferric chloride-induced injury of the carotid artery, mechanical injury of the abdominal aorta, or laser-induced injury of mesenteric vessels.
Conclusion
In summary, this study shows that platelet integrin α5β1 is a key receptor for fibrillar cellular fibronectin but is dispensable in hemostasis and arterial thrombosis.
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Affiliation(s)
- Emily Janus-Bell
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France
| | - Alexandra Yakusheva
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France.,Center for Theoretical Problems of Physicochemical Pharmacology, Cellular Hemostasis Lab, Moscow, Russia
| | - Cyril Scandola
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France
| | - Nicolas Receveur
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France
| | - Usman Muhammad Ahmed
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France
| | - Clarisse Mouriaux
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France
| | - Catherine Bourdon
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France
| | - Cécile Loubière
- 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
| | - Yotis A Senis
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France
| | - Mikhail A Panteleev
- Center for Theoretical Problems of Physicochemical Pharmacology, Cellular Hemostasis Lab, Moscow, Russia
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France
| | - Pierre H Mangin
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, Strasbourg, France
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15
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Scandola C, Lanza F, Gachet C, Eckly A. In Situ Exploration of Murine Megakaryopoiesis using Transmission Electron Microscopy. J Vis Exp 2021. [PMID: 34570102 DOI: 10.3791/62494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Differentiation and maturation of megakaryocytes occur in close association with the cellular and extracellular components of the bone marrow. These processes are characterized by the gradual appearance of essential structures in the megakaryocyte cytoplasm such as a polyploid and polylobulated nucleus, an internal membrane network called demarcation membrane system (DMS) and the dense and alpha granules that will be found in circulating platelets. In this article, we describe a standardized protocol for the in situ ultrastructural study of murine megakaryocytes using transmission electron microscopy (TEM), allowing for the identification of key characteristics defining their maturation stage and cellular density in the bone marrow. Bone marrows are flushed, fixed, dehydrated in ethanol, embedded in plastic resin, and mounted for generating cross-sections. Semi-thin and thin sections are prepared for histological and TEM observations, respectively. This method can be used for any bone marrow cell, in any EM facility and has the advantage of using small sample sizes allowing for the combination of several imaging approaches on the same mouse.
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Affiliation(s)
- Cyril Scandola
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS
| | - François Lanza
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS;
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16
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Selvadurai MV, Moon MJ, Mountford SJ, Ma X, Zheng Z, Jennings IG, Setiabakti NM, Iman RP, Brazilek RJ, Z Abidin NA, Chicanne G, Severin S, Nicholls AJ, Wong CHY, Rinckel JY, Eckly A, Gachet C, Nesbitt WS, Thompson PE, Hamilton JR. Disrupting the platelet internal membrane via PI3KC2α inhibition impairs thrombosis independently of canonical platelet activation. Sci Transl Med 2021; 12:12/553/eaar8430. [PMID: 32718993 DOI: 10.1126/scitranslmed.aar8430] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/12/2020] [Accepted: 06/05/2020] [Indexed: 12/17/2022]
Abstract
Arterial thrombosis causes heart attacks and most strokes and is the most common cause of death in the world. Platelets are the cells that form arterial thrombi, and antiplatelet drugs are the mainstay of heart attack and stroke prevention. Yet, current drugs have limited efficacy, preventing fewer than 25% of lethal cardiovascular events without clinically relevant effects on bleeding. The key limitation on the ability of all current drugs to impair thrombosis without causing bleeding is that they block global platelet activation, thereby indiscriminately preventing platelet function in hemostasis and thrombosis. Here, we identify an approach with the potential to overcome this limitation by preventing platelet function independently of canonical platelet activation and in a manner that appears specifically relevant in the setting of thrombosis. Genetic or pharmacological targeting of the class II phosphoinositide 3-kinase (PI3KC2α) dilates the internal membrane reserve of platelets but does not affect activation-dependent platelet function in standard tests. Despite this, inhibition of PI3KC2α is potently antithrombotic in human blood ex vivo and mice in vivo and does not affect hemostasis. Mechanistic studies reveal this antithrombotic effect to be the result of impaired platelet adhesion driven by pronounced hemodynamic shear stress gradients. These findings demonstrate an important role for PI3KC2α in regulating platelet structure and function via a membrane-dependent mechanism and suggest that drugs targeting the platelet internal membrane may be a suitable approach for antithrombotic therapies with an improved therapeutic window.
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Affiliation(s)
- Maria V Selvadurai
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia
| | - Mitchell J Moon
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia
| | - Simon J Mountford
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Xiao Ma
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Zhaohua Zheng
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Ian G Jennings
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Natasha M Setiabakti
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia.,Faculty of Medicine, Universitas Indonesia, Salemba, Jakarta 10430, Indonesia
| | - Rizani P Iman
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia.,Faculty of Medicine, Universitas Indonesia, Salemba, Jakarta 10430, Indonesia
| | - Rose J Brazilek
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia
| | - Nurul Aisha Z Abidin
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia
| | - Gaëtan Chicanne
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm U1048, Université Toulouse III, 31432 Toulouse CEDEX 4, France
| | - Sonia Severin
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm U1048, Université Toulouse III, 31432 Toulouse CEDEX 4, France
| | - Alyce J Nicholls
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, VIC 3800, Australia
| | - Connie H Y Wong
- Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre, Monash University, Clayton, VIC 3800, Australia
| | - Jean-Yves Rinckel
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67000 Strasbourg, France
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67000 Strasbourg, France
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67000 Strasbourg, France
| | - Warwick S Nesbitt
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia.,Microplatforms Research Group, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Philip E Thompson
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Justin R Hamilton
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC 3004, Australia.
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17
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Strassel C, Magiera MM, Dupuis A, Batzenschlager M, Hovasse A, Pleines I, Guéguen P, Eckly A, Moog S, Mallo L, Kimmerlin Q, Chappaz S, Strub JM, Kathiresan N, Salle HDL, Van Dorsselaer A, Ferec C, Py JY, Gachet C, Schaeffer-Reiss C, Kile BT, Janke C, Lanza F. Correction: An essential role for α4A-tubulin in platelet biogenesis. Life Sci Alliance 2021; 4:4/8/e202101132. [PMID: 34155037 PMCID: PMC8321679 DOI: 10.26508/lsa.202101132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 06/16/2021] [Indexed: 11/24/2022] Open
Affiliation(s)
- Catherine Strassel
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Maria M Magiera
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Arnaud Dupuis
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Morgane Batzenschlager
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Agnès Hovasse
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Irina Pleines
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Paul Guéguen
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Anita Eckly
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Sylvie Moog
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Léa Mallo
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Quentin Kimmerlin
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Stéphane Chappaz
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Jean-Marc Strub
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Natarajan Kathiresan
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Henri de la Salle
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Alain Van Dorsselaer
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Claude Ferec
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Jean-Yves Py
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Christian Gachet
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Christine Schaeffer-Reiss
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Benjamin T Kile
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Carsten Janke
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
| | - François Lanza
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France.,Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France.,Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France.,ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.,Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France.,EFS Centre-Pays de la Loire, site d'Orléans, France
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Abstract
The last stage of megakaryopoiesis leads to cytoplasmic extensions from mature megakaryocytes, the so-called proplatelets. Much has been learned about the proplatelet formation using in vitro-differentiated megakaryocytes; however, there is an increasing evidence that conventional culture systems do not faithfully recapitulate the differentiation/maturation process that takes places inside the bone marrow. In this manuscript, we present an explant method initially described in 1956 by Thiéry and Bessis to visualize megakaryocytes which have matured in their native environment, thus circumventing potential artifacts and misinterpretations. Fresh bone marrows are collected by flushing the femurs of mice, sliced into 0.5 mm cross sections, and placed in an incubation chamber at 37 °C containing a physiological buffer. Megakaryocytes become gradually visible at the explant periphery and are observed up to 6 hours under an inverted microscope coupled to a video camera. Over time, megakaryocytes change their shape, with some cells having a spherical form and others developing thick extensions or extending many thin proplatelets with extensive branching. Both qualitative and quantitative investigations are carried out. This method has the advantage of being simple, reproducible, and fast as numerous megakaryocytes are present, and classically half of them form proplatelets in 6 hours compared to 4 days for cultured mouse megakaryocytes. In addition to the study of mutant mice, an interesting application of this method is the straightforward evaluation of the pharmacological agents on the proplatelet extension process, without interfering with the differentiation process that may occur in cultures.
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Affiliation(s)
- Inès Guinard
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS
| | - François Lanza
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS
| | - Catherine Léon
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS;
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19
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Bornert A, Boscher J, Pertuy F, Eckly A, Stegner D, Strassel C, Gachet C, Lanza F, Léon C. Cytoskeletal-based mechanisms differently regulate in vivo and in vitro proplatelet formation. Haematologica 2021; 106:1368-1380. [PMID: 32327502 PMCID: PMC8094084 DOI: 10.3324/haematol.2019.239111] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Indexed: 12/23/2022] Open
Abstract
Platelets are produced by bone marrow megakaryocytes through cytoplasmic protrusions, named native proplatelets (nPPT), into blood vessels. Proplatelets also refer to protrusions observed in megakaryocyte culture (cultured proplatelets [cPPT]) which are morphologically different. Contrary to cPPT, the mechanisms of nPPT formation are poorly understood. We show here in living mice that nPPT elongation is in equilibrium between protrusion and retraction forces mediated by myosin-IIA. We also found, using wild-type and b1-tubulin-deficient mice, that microtubule behavior differs between cPPT and nPPT, being absolutely required in vitro, while less critical in vivo. Remarkably, microtubule depolymerization in myosin-deficient mice did not affect nPPT elongation. We then calculated that blood Stokes’ forces may be sufficient to promote nPPT extension, independently of myosin and microtubules. Together, we propose a new mechanism for nPPT extension that might explain contradictions between severely affected cPPT production and moderate platelet count defects in some patients and animal models.
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Affiliation(s)
- Alicia Bornert
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Julie Boscher
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Fabien Pertuy
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - David Stegner
- University Hospital Würzburg and Rudolf Virchow Center for Experimental Biomedicine, Germany
| | - Catherine Strassel
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - François Lanza
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Catherine Léon
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
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20
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Kovalenko TA, Giraud MN, Eckly A, Ribba AS, Proamer F, Fraboulet S, Podoplelova NA, Valentin J, Panteleev MA, Gonelle-Gispert C, Cook S, Lafanechère L, Sveshnikova AN, Sadoul K. Asymmetrical Forces Dictate the Distribution and Morphology of Platelets in Blood Clots. Cells 2021; 10:cells10030584. [PMID: 33800866 PMCID: PMC7998474 DOI: 10.3390/cells10030584] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/01/2021] [Indexed: 11/16/2022] Open
Abstract
Primary hemostasis consists in the activation of platelets, which spread on the exposed extracellular matrix at the injured vessel surface. Secondary hemostasis, the coagulation cascade, generates a fibrin clot in which activated platelets and other blood cells get trapped. Active platelet-dependent clot retraction reduces the clot volume by extruding the serum. Thus, the clot architecture changes with time of contraction, which may have an important impact on the healing process and the dissolution of the clot, but the precise physiological role of clot retraction is still not completely understood. Since platelets are the only actors to develop force for the retraction of the clot, their distribution within the clot should influence the final clot architecture. We analyzed platelet distributions in intracoronary thrombi and observed that platelets and fibrin co-accumulate in the periphery of retracting clots in vivo. A computational mechanical model suggests that asymmetric forces are responsible for a different contractile behavior of platelets in the periphery versus the clot center, which in turn leads to an uneven distribution of platelets and fibrin fibers within the clot. We developed an in vitro clot retraction assay that reproduces the in vivo observations and follows the prediction of the computational model. Our findings suggest a new active role of platelet contraction in forming a tight fibrin- and platelet-rich boundary layer on the free surface of fibrin clots.
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Affiliation(s)
- Tatiana A. Kovalenko
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, 30 Srednyaya Kalitnikovskaya str., 109029 Moscow, Russia; (T.A.K.); (N.A.P.); (M.A.P.)
| | - Marie-Noelle Giraud
- Cardiology, Faculty of Science and Medicine, University of Fribourg, CH-1700 Fribourg, Switzerland; (M.-N.G.); (J.V.); (S.C.)
| | - Anita Eckly
- BPPS UMR-S 1255, EFS Grand Est, FMTS, INSERM, University of Strasbourg, F-67065 Strasbourg, France; (A.E.); (F.P.)
| | - Anne-Sophie Ribba
- Institute for Advanced Biosciences, University Grenoble Alpes, CNRS UMR 5309, INSERM U1209, F-38700 Grenoble, France; (A.-S.R.); (S.F.); (L.L.)
| | - Fabienne Proamer
- BPPS UMR-S 1255, EFS Grand Est, FMTS, INSERM, University of Strasbourg, F-67065 Strasbourg, France; (A.E.); (F.P.)
| | - Sandrine Fraboulet
- Institute for Advanced Biosciences, University Grenoble Alpes, CNRS UMR 5309, INSERM U1209, F-38700 Grenoble, France; (A.-S.R.); (S.F.); (L.L.)
| | - Nadezhda A. Podoplelova
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, 30 Srednyaya Kalitnikovskaya str., 109029 Moscow, Russia; (T.A.K.); (N.A.P.); (M.A.P.)
- National Medical Research Centre of Pediatric Hematology, Oncology and Immunology Named after Dmitry Rogachev, 1 Samory Mashela St, 117198 Moscow, Russia
| | - Jeremy Valentin
- Cardiology, Faculty of Science and Medicine, University of Fribourg, CH-1700 Fribourg, Switzerland; (M.-N.G.); (J.V.); (S.C.)
| | - Mikhail A. Panteleev
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, 30 Srednyaya Kalitnikovskaya str., 109029 Moscow, Russia; (T.A.K.); (N.A.P.); (M.A.P.)
- National Medical Research Centre of Pediatric Hematology, Oncology and Immunology Named after Dmitry Rogachev, 1 Samory Mashela St, 117198 Moscow, Russia
| | - Carmen Gonelle-Gispert
- Surgical Research Unit, Faculty of Science and Medicine, University of Fribourg, CH-1700 Fribourg, Switzerland;
| | - Stéphane Cook
- Cardiology, Faculty of Science and Medicine, University of Fribourg, CH-1700 Fribourg, Switzerland; (M.-N.G.); (J.V.); (S.C.)
| | - Laurence Lafanechère
- Institute for Advanced Biosciences, University Grenoble Alpes, CNRS UMR 5309, INSERM U1209, F-38700 Grenoble, France; (A.-S.R.); (S.F.); (L.L.)
| | - Anastasia N. Sveshnikova
- Center for Theoretical Problems of Physico-Chemical Pharmacology, Russian Academy of Sciences, 30 Srednyaya Kalitnikovskaya str., 109029 Moscow, Russia; (T.A.K.); (N.A.P.); (M.A.P.)
- National Medical Research Centre of Pediatric Hematology, Oncology and Immunology Named after Dmitry Rogachev, 1 Samory Mashela St, 117198 Moscow, Russia
- Correspondence: (A.N.S.); (K.S.)
| | - Karin Sadoul
- Institute for Advanced Biosciences, University Grenoble Alpes, CNRS UMR 5309, INSERM U1209, F-38700 Grenoble, France; (A.-S.R.); (S.F.); (L.L.)
- Correspondence: (A.N.S.); (K.S.)
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21
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Ravanat C, Pongérard A, Freund M, Heim V, Rudwill F, Ziessel C, Eckly A, Proamer F, Isola H, Gachet C. Human platelets labeled at two discrete biotin densities are functional in vitro and are detected in vivo in the murine circulation: A promising approach to monitor platelet survival in vivo in clinical research. Transfusion 2021; 61:1642-1653. [PMID: 33580977 DOI: 10.1111/trf.16312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 01/17/2021] [Accepted: 01/17/2021] [Indexed: 01/15/2023]
Abstract
BACKGROUND The production of platelet concentrates (PCs) is evolving, and their survival capacity needs in vivo evaluation. This requires that the transfused platelets (PLTs) be distinguished from those of the recipient. Labeling at various biotin (Bio) densities allows one to concurrently trace multiple PLT populations, as reported for red blood cells. STUDY DESIGN AND METHODS A method is described to label human PLTs at two densities of Bio for future clinical trials. Injectable-grade PLTs were prepared in a sterile environment, using injectable-grade buffers and good manufacturing practices (GMP)-grade Sulfo-NHS-Biotin. Sulfo-NHS-Biotin concentrations were chosen to maintain PLT integrity and avoid potential alloimmunization while enabling the detection of circulating BioPLTs. The impact of biotinylation on human PLT recirculation was evaluated in vivo in a severe immunodeficient mouse model using ex vivo flow cytometry. RESULTS BioPLTs labeled with 1.2 or 10 μg/ml Sulfo-NHS-Biotin displayed normal ultrastructure and retained aggregation and secretion capacity and normal expression of the main surface glycoproteins. The procedure avoided detrimental PLT activation or apoptosis signals. Transfused human BioPLT populations could be distinguished from one another and from unlabeled circulating mouse PLTs, and their survival was comparable to that of unlabeled human PLTs in the mouse model. CONCLUSIONS Provided low Sulfo-NHS-Biotin concentrations (<10 μg/ml) are used, injectable-grade BioPLTs comply with safety regulations, conserve PLT integrity, and permit accurate in vivo detection. This alternative to radioisotopes, which allows one to follow different PLT populations in the same recipient, should be valuable when assessing new PC preparations and monitoring PLT survival in clinical research.
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Affiliation(s)
- Catherine Ravanat
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Anaïs Pongérard
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Monique Freund
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Véronique Heim
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Floriane Rudwill
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Catherine Ziessel
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Anita Eckly
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Fabienne Proamer
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Hervé Isola
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Christian Gachet
- Université de Strasbourg, INSERM, Etablissement Français du Sang (EFS) Grand-Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
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22
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Isola H, Ravanat C, Rudwill F, Pongerard A, Haas D, Eckly A, Gachet C, Hechler B. Removal of citrate from PAS-III additive solution improves functional and biochemical characteristics of buffy-coat platelet concentrates stored for 7 days, with or without INTERCEPT pathogen reduction. Transfusion 2021; 61:919-930. [PMID: 33527430 DOI: 10.1111/trf.16280] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/17/2020] [Accepted: 12/21/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Deterioration in quality of platelet concentrates (PCs) during storage results from the appearance of storage lesions affecting the hemostatic functions and posttransfusion survival of platelets. These lesions depend on the preparation and pathogen inactivation methods used, duration of storage, and platelet additive solutions (PASs) present in storage bags. METHODS We investigated the effects of citrate contained in third-generation PAS (PAS-III) on storage lesions in buffy-coat PCs with or without photochemical (amotosalen-ultraviolet A) treatment over 7 days. RESULTS Platelet counts were conserved in all groups during storage, as was platelet swirling without appearance of macroscopic aggregates. Glycoprotein (GP) IIbIIIa and GPVI expression remained stable, whereas GPIbα declined similarly in all groups during storage. Removal of citrate from PAS-III, resulting in global reduction of citrate from 11 to 5 mM, led to a significant decrease in glucose consumption, which largely countered a modest deleterious effect of photochemical treatment. Citrate reduction also resulted in decreased lactate generation and better maintenance of pH during storage, while photochemical treatment had no impact on these parameters. Moreover, citrate-free storage significantly reduced exposure of P-selectin and the apoptosis signal phosphatidylserine, thereby abolishing the activating effect of photochemical treatment on both parameters. Citrate reduction benefited platelet aggregation to various agonists up to Day 7, whereas PCT had no impact on these responses. CONCLUSION Removal of citrate from PAS-III has a beneficial impact on platelet metabolism, spontaneous activation, and apoptosis, and improves platelet aggregation, irrespective of photochemical treatment, which should allow transfusion of platelets with better and longer-lasting functional properties.
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Affiliation(s)
- Hervé Isola
- INSERM, Etablissement Français du Sang (EFS) Grand Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Catherine Ravanat
- INSERM, Etablissement Français du Sang (EFS) Grand Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Floriane Rudwill
- INSERM, Etablissement Français du Sang (EFS) Grand Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Anais Pongerard
- INSERM, Etablissement Français du Sang (EFS) Grand Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Delphine Haas
- INSERM, Etablissement Français du Sang (EFS) Grand Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Anita Eckly
- INSERM, Etablissement Français du Sang (EFS) Grand Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Christian Gachet
- INSERM, Etablissement Français du Sang (EFS) Grand Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Béatrice Hechler
- INSERM, Etablissement Français du Sang (EFS) Grand Est, BPPS UMR_S 1255, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
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23
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Eckly A, Scandola C, Oprescu A, Michel D, Rinckel JY, Proamer F, Hoffmann D, Receveur N, Léon C, Bear JE, Ghalloussi D, Harousseau G, Bergmeier W, Lanza F, Gaits-Iacovoni F, de la Salle H, Gachet C. Megakaryocytes use in vivo podosome-like structures working collectively to penetrate the endothelial barrier of bone marrow sinusoids. J Thromb Haemost 2020; 18:2987-3001. [PMID: 32702204 DOI: 10.1111/jth.15024] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/18/2020] [Accepted: 07/16/2020] [Indexed: 01/11/2023]
Abstract
BACKGROUND Blood platelets are anucleate cell fragments that prevent bleeding and minimize blood vessel injury. They are formed from the cytoplasm of megakaryocytes located in the bone marrow. For successful platelet production, megakaryocyte fragments must pass through the sinusoid endothelial barrier by a cell biology process unique to these giant cells as compared with erythrocytes and leukocytes. Currently, the mechanisms by which megakaryocytes interact and progress through the endothelial cells are not understood, resulting in a significant gap in our knowledge of platelet production. OBJECTIVE The aim of this study was to investigate how megakaryocytes interact and progress through the endothelial cells of mouse bone marrow sinusoids. METHODS We used a combination of fluorescence, electron, and three-dimensional microscopy to characterize the cellular events between megakaryocytes and endothelial cells. RESULTS We identified protrusive, F-actin-based podosome-like structures, called in vivo-MK podosomes, which initiate the formation of pores through endothelial cells. These structures present a collective and spatial organization through their interconnection via a contractile network of actomyosin, essential to regulate the endothelial openings. This ensures proper passage of megakaryocyte-derived processes into the blood circulation to promote thrombopoiesis. CONCLUSION This study provides novel insight into the in vivo function of podosomes of megakaryocytes with critical importance to platelet production.
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Affiliation(s)
- Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Cyril Scandola
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Antoine Oprescu
- INSERM U1048, I2MC, Université Paul Sabatier, Toulouse, France
| | - Deborah Michel
- INSERM U1048, I2MC, Université Paul Sabatier, Toulouse, France
| | - Jean-Yves Rinckel
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Fabienne Proamer
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - David Hoffmann
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Nicolas Receveur
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Catherine Léon
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - James E Bear
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Dorsaf Ghalloussi
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Gabriel Harousseau
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Wolfgang Bergmeier
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Francois Lanza
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | | | - Henri de la Salle
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Strasbourg, France
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Abstract
ABSTRACT
The main function of blood platelets is to ensure hemostasis and prevent hemorrhages. The 1011 platelets needed daily are produced in a well-orchestrated process. However, this process is not yet fully understood and in vitro platelet production is still inefficient. Platelets are produced in the bone marrow by megakaryocytes, highly specialized precursor cells that extend cytoplasmic projections called proplatelets (PPTs) through the endothelial barrier of sinusoid vessels. In this Cell Science at a Glance article and the accompanying poster we discuss the mechanisms and pathways involved in megakaryopoiesis and platelet formation processes. We especially address the – still underestimated – role of the microenvironment of the bone marrow, and present recent findings on how PPT extension in vivo differs from that in vitro and entails different mechanisms. Finally, we recapitulate old but recently revisited evidence that – although bone marrow does produce megakaryocytes and PPTs – remodeling and the release of bona fide platelets, mainly occur in the downstream microcirculation.
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Affiliation(s)
- Julie Boscher
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, F-67000 Strasbourg, France
| | - Ines Guinard
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, F-67000 Strasbourg, France
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, F-67000 Strasbourg, France
| | - François Lanza
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, F-67000 Strasbourg, France
| | - Catherine Léon
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, F-67000 Strasbourg, France
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25
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Dupuis A, Bordet JC, Eckly A, Gachet C. Platelet δ-Storage Pool Disease: An Update. J Clin Med 2020; 9:jcm9082508. [PMID: 32759727 PMCID: PMC7466064 DOI: 10.3390/jcm9082508] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/21/2020] [Accepted: 07/28/2020] [Indexed: 12/15/2022] Open
Abstract
Platelet dense-granules are small organelles specific to the platelet lineage that contain small molecules (calcium, adenyl nucleotides, serotonin) and are essential for the activation of blood platelets prior to their aggregation in the event of a vascular injury. Delta-storage pool diseases (δ-SPDs) are platelet pathologies leading to hemorrhagic syndromes of variable severity and related to a qualitative (content) or quantitative (numerical) deficiency in dense-granules. These pathologies appear in a syndromic or non-syndromic form. The syndromic forms (Chediak–Higashi disease, Hermansky–Pudlak syndromes), whose causative genes are known, associate immune deficiencies and/or oculocutaneous albinism with a platelet function disorder (PFD). The non-syndromic forms correspond to an isolated PFD, but the genes responsible for the pathology are not yet known. The diagnosis of these pathologies is complex and poorly standardized. It is based on orientation tests performed by light transmission aggregometry or flow cytometry, which are supplemented by complementary tests based on the quantification of platelet dense-granules by electron microscopy using the whole platelet mount technique and the direct determination of granule contents (ADP/ATP and serotonin). The objective of this review is to present the state of our knowledge concerning platelet dense-granules and the tools available for the diagnosis of different forms of δ-SPD.
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Affiliation(s)
- Arnaud Dupuis
- INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Université de Strasbourg, F-67000 Strasbourg, France; (A.E.); (C.G.)
- Correspondence: ; Tel.: +33-38-821-2506
| | - Jean-Claude Bordet
- Laboratoire D’hématologie, Hospices Civils de Lyon, 59 Bd Pinel, CEDEX, 69677 Bron, France;
| | - Anita Eckly
- INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Université de Strasbourg, F-67000 Strasbourg, France; (A.E.); (C.G.)
| | - Christian Gachet
- INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Université de Strasbourg, F-67000 Strasbourg, France; (A.E.); (C.G.)
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26
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Abstract
Electron microscopy (EM) has a long history in megakaryocyte (MK) cellular biology. This chapter shows how the electron microscope, since its first appearance almost 90 years ago, has occupied center stage in the studies of MK morphology and function. It describes some of the more productive EM techniques that have shaped our understanding of the physiology of thrombopoiesis. These include the standard transmission and scanning EM techniques as well as the new imaging methods, correlative microscopy and volume EM which provide information on the 3D organization of MKs on different scales: single organelles, whole cells and tissues. For each technique, we list the advantages and limitations, the resolution that can be achieved, the technical difficulties and the applications in MK biology.
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Affiliation(s)
- Cyril Scandola
- INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Université de Strasbourg , Strasbourg, France
| | | | - Jean-Yves Rinckel
- INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Université de Strasbourg , Strasbourg, France
| | - Fabienne Proamer
- INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Université de Strasbourg , Strasbourg, France
| | - Christian Gachet
- INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Université de Strasbourg , Strasbourg, France
| | - Anita Eckly
- INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, Université de Strasbourg , Strasbourg, France
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27
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Ayala-Nunez NV, Follain G, Delalande F, Hirschler A, Partiot E, Hale GL, Bollweg BC, Roels J, Chazal M, Bakoa F, Carocci M, Bourdoulous S, Faklaris O, Zaki SR, Eckly A, Uring-Lambert B, Doussau F, Cianferani S, Carapito C, Jacobs FMJ, Jouvenet N, Goetz JG, Gaudin R. Zika virus enhances monocyte adhesion and transmigration favoring viral dissemination to neural cells. Nat Commun 2019; 10:4430. [PMID: 31562326 PMCID: PMC6764950 DOI: 10.1038/s41467-019-12408-x] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 09/04/2019] [Indexed: 02/06/2023] Open
Abstract
Zika virus (ZIKV) invades and persists in the central nervous system (CNS), causing severe neurological diseases. However the virus journey, from the bloodstream to tissues through a mature endothelium, remains unclear. Here, we show that ZIKV-infected monocytes represent suitable carriers for viral dissemination to the CNS using human primary monocytes, cerebral organoids derived from embryonic stem cells, organotypic mouse cerebellar slices, a xenotypic human-zebrafish model, and human fetus brain samples. We find that ZIKV-exposed monocytes exhibit higher expression of adhesion molecules, and higher abilities to attach onto the vessel wall and transmigrate across endothelia. This phenotype is associated to enhanced monocyte-mediated ZIKV dissemination to neural cells. Together, our data show that ZIKV manipulates the monocyte adhesive properties and enhances monocyte transmigration and viral dissemination to neural cells. Monocyte transmigration may represent an important mechanism required for viral tissue invasion and persistence that could be specifically targeted for therapeutic intervention. Zika virus (ZIKV) can infect the central nervous system, but it is not clear how it reaches the brain. Here, Ayala-Nunez et al. show in ex vivo and in vivo models that ZIKV can hitch a ride in monocytes in a Trojan Horse manner to cross the endothelium and disseminate the virus.
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Affiliation(s)
- Nilda Vanesa Ayala-Nunez
- Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS, Université de Montpellier, 34293, Montpellier, France.,Université de Strasbourg, INSERM, 67000, Strasbourg, France
| | | | - François Delalande
- Laboratoire de Spectrométrie de Masse Bio-Organique, IPHC, UMR 7178, CNRS-Université de Strasbourg, ECPM, 67087, Strasbourg, France
| | - Aurélie Hirschler
- Laboratoire de Spectrométrie de Masse Bio-Organique, IPHC, UMR 7178, CNRS-Université de Strasbourg, ECPM, 67087, Strasbourg, France
| | - Emma Partiot
- Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS, Université de Montpellier, 34293, Montpellier, France
| | - Gillian L Hale
- Infectious Diseases Pathology Branch, Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Centers for Disease Control and Prevention, 1600 Clifton Rd NE, MS: G32, Atlanta, GA, 30329-4027, USA
| | - Brigid C Bollweg
- Infectious Diseases Pathology Branch, Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Centers for Disease Control and Prevention, 1600 Clifton Rd NE, MS: G32, Atlanta, GA, 30329-4027, USA
| | - Judith Roels
- University of Amsterdam, Swammerdam Institute for Life Sciences, Science Park 904, 1098XH, Amsterdam, The Netherlands
| | - Maxime Chazal
- Viral Genomics and Vaccination Unit, UMR3569 CNRS, Virology Department, Institut Pasteur, 75015, Paris, France
| | - Florian Bakoa
- Viral Genomics and Vaccination Unit, UMR3569 CNRS, Virology Department, Institut Pasteur, 75015, Paris, France
| | - Margot Carocci
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S1255, FMTS, 67000, Strasbourg, France
| | - Sandrine Bourdoulous
- INSERM U1016, Institut Cochin, CNRS UMR8104, Université Paris Descartes, Paris, France
| | - Orestis Faklaris
- MRI Core facility, Biocampus, CNRS UMS 3426, 34293, Montpellier, France
| | - Sherif R Zaki
- Infectious Diseases Pathology Branch, Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Centers for Disease Control and Prevention, 1600 Clifton Rd NE, MS: G32, Atlanta, GA, 30329-4027, USA
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S1255, FMTS, 67000, Strasbourg, France
| | - Béatrice Uring-Lambert
- Hôpitaux universitaires de Strasbourg, laboratoire central d'immunologie, 67000, Strasbourg, France
| | - Frédéric Doussau
- Institut des Neurosciences Cellulaires et Intégratives, CNRS, Université de Strasbourg, 67000, Strasbourg, France
| | - Sarah Cianferani
- Laboratoire de Spectrométrie de Masse Bio-Organique, IPHC, UMR 7178, CNRS-Université de Strasbourg, ECPM, 67087, Strasbourg, France
| | - Christine Carapito
- Laboratoire de Spectrométrie de Masse Bio-Organique, IPHC, UMR 7178, CNRS-Université de Strasbourg, ECPM, 67087, Strasbourg, France
| | - Frank M J Jacobs
- University of Amsterdam, Swammerdam Institute for Life Sciences, Science Park 904, 1098XH, Amsterdam, The Netherlands
| | - Nolwenn Jouvenet
- Viral Genomics and Vaccination Unit, UMR3569 CNRS, Virology Department, Institut Pasteur, 75015, Paris, France
| | | | - Raphael Gaudin
- Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS, Université de Montpellier, 34293, Montpellier, France. .,Université de Strasbourg, INSERM, 67000, Strasbourg, France.
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28
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Vögtle T, Sharma S, Mori J, Nagy Z, Semeniak D, Scandola C, Geer MJ, Smith CW, Lane J, Pollack S, Lassila R, Jouppila A, Barr AJ, Ogg DJ, Howard TD, McMiken HJ, Warwicker J, Geh C, Rowlinson R, Abbott WM, Eckly A, Schulze H, Wright GJ, Mazharian A, Fütterer K, Rajesh S, Douglas MR, Senis YA. Heparan sulfates are critical regulators of the inhibitory megakaryocyte-platelet receptor G6b-B. eLife 2019; 8:e46840. [PMID: 31436532 PMCID: PMC6742478 DOI: 10.7554/elife.46840] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 08/21/2019] [Indexed: 02/06/2023] Open
Abstract
The immunoreceptor tyrosine-based inhibition motif (ITIM)-containing receptor G6b-B is critical for platelet production and activation. Loss of G6b-B results in severe macrothrombocytopenia, myelofibrosis and aberrant platelet function in mice and humans. Using a combination of immunohistochemistry, affinity chromatography and proteomics, we identified the extracellular matrix heparan sulfate (HS) proteoglycan perlecan as a G6b-B binding partner. Subsequent in vitro biochemical studies and a cell-based genetic screen demonstrated that the interaction is specifically mediated by the HS chains of perlecan. Biophysical analysis revealed that heparin forms a high-affinity complex with G6b-B and mediates dimerization. Using platelets from humans and genetically modified mice, we demonstrate that binding of G6b-B to HS and multivalent heparin inhibits platelet and megakaryocyte function by inducing downstream signaling via the tyrosine phosphatases Shp1 and Shp2. Our findings provide novel insights into how G6b-B is regulated and contribute to our understanding of the interaction of megakaryocytes and platelets with glycans.
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Affiliation(s)
- Timo Vögtle
- Institute of Cardiovascular Sciences, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - Sumana Sharma
- Cell Surface Signalling LaboratoryWellcome Trust Sanger InstituteCambridgeUnited Kingdom
| | - Jun Mori
- Institute of Cardiovascular Sciences, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - Zoltan Nagy
- Institute of Cardiovascular Sciences, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - Daniela Semeniak
- Institute of Experimental BiomedicineUniversity Hospital WürzburgWürzburgGermany
| | - Cyril Scandola
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de StrasbourgStrasbourgFrance
| | - Mitchell J Geer
- Institute of Cardiovascular Sciences, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - Christopher W Smith
- Institute of Cardiovascular Sciences, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - Jordan Lane
- Sygnature Discovery LimitedNottinghamUnited Kingdom
| | | | - Riitta Lassila
- Coagulation Disorders Unit, Department of Hematology, Comprehensive Cancer CenterUniversity of Helsinki, Helsinki University HospitalHelsinkiFinland
- Aplagon OyHelsinkiFinland
| | - Annukka Jouppila
- Coagulation Disorders UnitHelsinki University Hospital Research InstituteHelsinkiFinland
| | - Alastair J Barr
- Department of Biomedical Science, Faculty of Science & TechnologyUniversity of WestminsterLondonUnited Kingdom
| | - Derek J Ogg
- Peak Proteins LimitedAlderley ParkCheshireUnited Kingdom
| | - Tina D Howard
- Peak Proteins LimitedAlderley ParkCheshireUnited Kingdom
| | | | - Juli Warwicker
- Peak Proteins LimitedAlderley ParkCheshireUnited Kingdom
| | - Catherine Geh
- Peak Proteins LimitedAlderley ParkCheshireUnited Kingdom
| | | | - W Mark Abbott
- Peak Proteins LimitedAlderley ParkCheshireUnited Kingdom
| | - Anita Eckly
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de StrasbourgStrasbourgFrance
| | - Harald Schulze
- Institute of Experimental BiomedicineUniversity Hospital WürzburgWürzburgGermany
| | - Gavin J Wright
- Cell Surface Signalling LaboratoryWellcome Trust Sanger InstituteCambridgeUnited Kingdom
| | - Alexandra Mazharian
- Institute of Cardiovascular Sciences, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - Klaus Fütterer
- School of Biosciences, College of Life and Environmental SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - Sundaresan Rajesh
- Institute of Cancer and Genomic Sciences, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - Michael R Douglas
- Institute of Inflammation and Ageing, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUnited Kingdom
- Department of NeurologyDudley Group NHS Foundation TrustDudleyUnited Kingdom
- School of Life and Health SciencesAston UniversityBirminghamUnited Kingdom
| | - Yotis A Senis
- Institute of Cardiovascular Sciences, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUnited Kingdom
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de StrasbourgStrasbourgFrance
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29
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Strassel C, Magiera MM, Dupuis A, Batzenschlager M, Hovasse A, Pleines I, Guéguen P, Eckly A, Moog S, Mallo L, Kimmerlin Q, Chappaz S, Strub JM, Kathiresan N, de la Salle H, Van Dorsselaer A, Ferec C, Py JY, Gachet C, Schaeffer-Reiss C, Kile BT, Janke C, Lanza F. An essential role for α4A-tubulin in platelet biogenesis. Life Sci Alliance 2019; 2:2/1/e201900309. [PMID: 30760556 PMCID: PMC6374996 DOI: 10.26508/lsa.201900309] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 11/24/2022] Open
Abstract
Alpha4A-tubulin is the predominant α-tubulin isotype in platelets. Mutations in α4A-tubulin cause abnormal platelet biogenesis and marginal band formation in mice and in a patient, establishing an essential role of this tubulin isotype. During platelet biogenesis, microtubules (MTs) are arranged into submembranous structures (the marginal band) that encircle the cell in a single plane. This unique MT array has no equivalent in any other mammalian cell, and the mechanisms responsible for this particular mode of assembly are not fully understood. One possibility is that platelet MTs are composed of a particular set of tubulin isotypes that carry specific posttranslational modifications. Although β1-tubulin is known to be essential, no equivalent roles of α-tubulin isotypes in platelet formation or function have so far been reported. Here, we identify α4A-tubulin as a predominant α-tubulin isotype in platelets. Similar to β1-tubulin, α4A-tubulin expression is up-regulated during the late stages of megakaryocyte differentiation. Missense mutations in the α4A-tubulin gene cause macrothrombocytopenia in mice and humans. Defects in α4A-tubulin lead to changes in tubulin tyrosination status of the platelet tubulin pool. Ultrastructural defects include reduced numbers and misarranged MT coils in the platelet marginal band. We further observed defects in megakaryocyte maturation and proplatelet formation in Tuba4a-mutant mice. We have, thus, discovered an α-tubulin isotype with specific and essential roles in platelet biogenesis.
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Affiliation(s)
- Catherine Strassel
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Maria M Magiera
- Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France
| | - Arnaud Dupuis
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Morgane Batzenschlager
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Agnès Hovasse
- Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France
| | - Irina Pleines
- ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia
| | - Paul Guéguen
- Laboratoire de génétique moléculaire et d'histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France
| | - Anita Eckly
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Sylvie Moog
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Léa Mallo
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Quentin Kimmerlin
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Stéphane Chappaz
- ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia
| | - Jean-Marc Strub
- Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France
| | - Natarajan Kathiresan
- Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France.,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France
| | - Henri de la Salle
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Alain Van Dorsselaer
- Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France
| | - Claude Ferec
- Laboratoire de génétique moléculaire et d'histocompatibilité, Centre Hospitalier Régional et Universitaire Morvan, INSERM U1078, EFS Bretagne, Brest, France
| | - Jean-Yves Py
- EFS Centre-Pays de la Loire, site d'Orléans, France
| | - Christian Gachet
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Christine Schaeffer-Reiss
- Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France
| | - Benjamin T Kile
- ACRF Australian Cancer Research Foundation Chemical Biology Division, the Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia
| | - Carsten Janke
- Institut Curie, Paris-Sciences-et-Lettres Research University, CNRS UMR3348, Orsay, France .,Université Paris Sud, Université Paris-Saclay, CNRS UMR3348, Orsay, France
| | - François Lanza
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand Est, Unité Mixte de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
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30
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Nechipurenko DY, Receveur N, Yakimenko AO, Shepelyuk TO, Yakusheva AA, Kerimov RR, Obydennyy SI, Eckly A, Léon C, Gachet C, Grishchuk EL, Ataullakhanov FI, Mangin PH, Panteleev MA. Clot Contraction Drives the Translocation of Procoagulant Platelets to Thrombus Surface. Arterioscler Thromb Vasc Biol 2019; 39:37-47. [DOI: 10.1161/atvbaha.118.311390] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective—
After activation at the site of vascular injury, platelets differentiate into 2 subpopulations, exhibiting either proaggregatory or procoagulant phenotype. Although the functional role of proaggregatory platelets is well established, the physiological significance of procoagulant platelets, the dynamics of their formation, and spatial distribution in thrombus remain elusive.
Approach and Results—
Using transmission electron microscopy and fluorescence microscopy of arterial thrombi formed in vivo after ferric chloride–induced injury of carotid artery or mechanical injury of abdominal aorta in mice, we demonstrate that procoagulant platelets are located at the periphery of the formed thrombi. Real-time cell tracking during thrombus formation ex vivo revealed that procoagulant platelets originate from different locations within the thrombus and subsequently translocate towards its periphery. Such redistribution of procoagulant platelets was followed by generation of fibrin at thrombus surface. Using in silico model, we show that the outward translocation of procoagulant platelets can be driven by the contraction of the forming thrombi, which mechanically expels these nonaggregating cells to thrombus periphery. In line with the suggested mechanism, procoagulant platelets failed to translocate and remained inside the thrombi formed ex vivo in blood derived from nonmuscle myosin (
MYH9
)-deficient mice. Ring-like distribution of procoagulant platelets and fibrin around the thrombus observed with blood of humans and wild-type mice was not present in thrombi of
MYH9
-knockout mice, confirming a major role of thrombus contraction in this phenomenon.
Conclusions—
Contraction of arterial thrombus is responsible for the mechanical extrusion of procoagulant platelets to its periphery, leading to heterogeneous structure of thrombus exterior.
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Affiliation(s)
- Dmitry Y. Nechipurenko
- From the Department of Physics, Lomonosov Moscow State University, Russia (D.Y.N., R.R.K., F.I.A., M.A.P.)
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology, and Immunology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
- Center for Theoretical Problems of Physicochemical Pharmacology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
| | - Nicolas Receveur
- INSERM, Etablissement Français du Sang-Grand Est, UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, France (N.R., A.E., C.L., C.G., P.H.M.)
| | - Alena O. Yakimenko
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology, and Immunology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
- Center for Theoretical Problems of Physicochemical Pharmacology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
| | - Taisiya O. Shepelyuk
- Faculty of Basic Medicine, Lomonosov Moscow State University, Russia (T.O.S.)
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology, and Immunology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
- Center for Theoretical Problems of Physicochemical Pharmacology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
| | - Alexandra A. Yakusheva
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology, and Immunology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
- Center for Theoretical Problems of Physicochemical Pharmacology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
| | - Roman R. Kerimov
- From the Department of Physics, Lomonosov Moscow State University, Russia (D.Y.N., R.R.K., F.I.A., M.A.P.)
| | - Sergei I. Obydennyy
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology, and Immunology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
- Center for Theoretical Problems of Physicochemical Pharmacology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
| | - Anita Eckly
- INSERM, Etablissement Français du Sang-Grand Est, UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, France (N.R., A.E., C.L., C.G., P.H.M.)
| | - Catherine Léon
- INSERM, Etablissement Français du Sang-Grand Est, UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, France (N.R., A.E., C.L., C.G., P.H.M.)
| | - Christian Gachet
- INSERM, Etablissement Français du Sang-Grand Est, UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, France (N.R., A.E., C.L., C.G., P.H.M.)
| | - Ekaterina L. Grishchuk
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia (E.L.G.)
| | - Fazoil I. Ataullakhanov
- From the Department of Physics, Lomonosov Moscow State University, Russia (D.Y.N., R.R.K., F.I.A., M.A.P.)
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology, and Immunology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
- Center for Theoretical Problems of Physicochemical Pharmacology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
- Department of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia (F.I.A., M.A.P.)
| | - Pierre H. Mangin
- INSERM, Etablissement Français du Sang-Grand Est, UMR_S1255, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, France (N.R., A.E., C.L., C.G., P.H.M.)
| | - Mikhail A. Panteleev
- From the Department of Physics, Lomonosov Moscow State University, Russia (D.Y.N., R.R.K., F.I.A., M.A.P.)
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology, and Immunology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
- Center for Theoretical Problems of Physicochemical Pharmacology, Moscow, Russia (D.Y.N., A.O.Y., T.O.S., A.A.Y., S.I.O., F.I.A., M.A.P.)
- Department of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia (F.I.A., M.A.P.)
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Selvadurai MV, Brazilek RJ, Moon MJ, Rinckel J, Eckly A, Gachet C, Meikle PJ, Nandurkar HH, Nesbitt WS, Hamilton JR. The
PI
3‐kinase
PI
3
KC
2α regulates mouse platelet membrane structure and function independently of membrane lipid composition. FEBS Lett 2018; 593:88-96. [DOI: 10.1002/1873-3468.13295] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 11/07/2018] [Indexed: 01/01/2023]
Affiliation(s)
| | - Rose J. Brazilek
- Australian Centre for Blood Diseases Monash University Melbourne Australia
| | - Mitchell J. Moon
- Australian Centre for Blood Diseases Monash University Melbourne Australia
| | | | - Anita Eckly
- INSERM EFS GEST BPPS UMR_S1225 FMTS Université de Strasbourg France
| | - Christian Gachet
- INSERM EFS GEST BPPS UMR_S1225 FMTS Université de Strasbourg France
| | - Peter J. Meikle
- Metabolomics Laboratory Baker IDI Heart and Diabetes Institute Melbourne Australia
| | | | - Warwick S. Nesbitt
- Australian Centre for Blood Diseases Monash University Melbourne Australia
- Microplatforms Research Group School of Engineering RMIT University Melbourne Australia
| | - Justin R. Hamilton
- Australian Centre for Blood Diseases Monash University Melbourne Australia
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32
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Felten R, Dupuis A, Eckly A, Gachet C, Korganow A, Martin M. Un cas de maladie du pool plaquettaire vide associé à un syndrome de Gougerot-Sjögren primitif. Rev Med Interne 2018. [DOI: 10.1016/j.revmed.2018.03.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Baurand A, Eckly A, Bari N, Léon C, Hechler B, Cazenave JP, Gachet C. Desensitization of the Platelet Aggregation Response to ADP: Differential Down-regulation of the P2Y1 and P2cyc Receptors. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1614049] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryPlatelets activated by ADP become refractory to restimulation, but the mechanism of this process is not well understood. A normal platelet response to ADP requires coactivation of the P2Y1 receptor responsible for shape change and the P2cyc receptor, responsible for completion and amplification of the response. The aim of the present study was to characterize the desensitization of platelets to ADP and to determine whether or not these two receptors are desensitized simultaneously through identical pathways when platelets become refractory to ADP. It was found that full inhibition of platelet aggregation in response to restimulation by ADP required the presence of ADP in the medium or use of a high concentration (1 mM) of its non-hydrolysable analogue ADP β S. Platelets incubated for 1 h at 37° C with 1 mM ADP β S and resuspended in Tyrode’s buffer containing apyrase displayed a stable refractory state characterized by the inability to aggregate or change shape in response to ADP. ADP β S treated platelets loaded with fura2/AM showed complete blockade of the calcium signal in response to ADP, whereas the capacity of ADP to inhibit PGE1 stimulated cAMP accumulation in these platelets was only diminished. Consequently, serotonin was able to promote ADP induced aggregation through activation of the Gq coupled 5HT2A receptor while adrenaline had no such effect. These results suggested that the refractory state of ADP β S treated platelets was entirely due to desensitization of the P2Y1 receptor, the P2cyc receptor remaining functional. Binding studies were performed to determine whether the P2Y1 and/or P2cyc binding sites were modified in refractory platelets. Using selective P2Y1 and P2cyc antagonists (A3P5P and AR-C66096 respectively), we could demonstrate that the decrease in [33P]2MeSADP binding sites on refractory platelets corresponded to disappearance of the P2Y1 sites with no change in the number of P2cyc sites, suggesting internalization of the P2Y1 receptor. This was confirmed by flow cytometric analysis of Jurkat cells expressing an epitope-tagged P2Y1 receptor, where ADP β S treatment resulted in complete loss of the receptor from the cell surface. We conclude that the P2Y1 and P2cyc receptors are differently regulated during platelet activation.
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34
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Eckly A, Gendrault JL, Hechler B, Cazenave JP, Gachet C. Differential Involvement of the P2Y1 and P2YT Receptors in the Morphological Changes of Platelet Aggregation. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1615655] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryThe relative contributions of the P2Y1 and P2YT receptors to the morphological changes induced in platelets by ADP or ADP-releasing agonists were assessed using two P2 antagonists, A2P5P and ARC67085, selective for P2Y1 and P2YT, respectively. The P2Y1 receptor was found to be involved in i) the centralization of secretory granules elicited by ADP, ii) the formation of filopodia induced by released ADP in weakly activated platelets and iii) actin polymerization and the cyto-skeletal translocation of cdc42, rac1 and rhoA, in an integrin IIb 3 dependent manner, in ADP-stimulated platelets. In contrast, the P2YT receptor was shown i) to be essential for the formation of stable macro-aggregates, ii) to enhance actin polymerization and the cytoskeletal translocation of small GTPases, probably through amplification of platelet aggregation, and iii) not to be involved in the early steps of platelet activation since its blockade did not affect the cytoskeletal translocation of rhoA.
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35
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Strassel C, Mallo L, Egard S, Haas G, Eckly A, Brouard N, Freund M, Lanza F, Gachet C. Identification d’un progéniteur mégacaryocytaire à fort pouvoir proplaquettaire. Transfus Clin Biol 2017. [DOI: 10.1016/j.tracli.2017.06.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Saultier P, Vidal L, Canault M, Bernot D, Falaise C, Pouymayou C, Bordet JC, Saut N, Rostan A, Baccini V, Peiretti F, Favier M, Lucca P, Deleuze JF, Olaso R, Boland A, Morange PE, Gachet C, Malergue F, Fauré S, Eckly A, Trégouët DA, Poggi M, Alessi MC. Macrothrombocytopenia and dense granule deficiency associated with FLI1 variants: ultrastructural and pathogenic features. Haematologica 2017; 102:1006-1016. [PMID: 28255014 PMCID: PMC5451332 DOI: 10.3324/haematol.2016.153577] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 02/24/2017] [Indexed: 12/20/2022] Open
Abstract
Congenital macrothrombocytopenia is a family of rare diseases, of which a significant fraction remains to be genetically characterized. To analyze cases of unexplained thrombocytopenia, 27 individuals from a patient cohort of the Bleeding and Thrombosis Exploration Center of the University Hospital of Marseille were recruited for a high-throughput gene sequencing study. This strategy led to the identification of two novel FLI1 variants (c.1010G>A and c.1033A>G) responsible for macrothrombocytopenia. The FLI1 variant carriers’ platelets exhibited a defect in aggregation induced by low-dose adenosine diphosphate (ADP), collagen and thrombin receptor-activating peptide (TRAP), a defect in adenosine triphosphate (ATP) secretion, a reduced mepacrine uptake and release and a reduced CD63 expression upon TRAP stimulation. Precise ultrastructural analysis of platelet content was performed using transmission electron microscopy and focused ion beam scanning electron microscopy. Remarkably, dense granules were nearly absent in the carriers’ platelets, presumably due to a biogenesis defect. Additionally, 25–29% of the platelets displayed giant α-granules, while a smaller proportion displayed vacuoles (7–9%) and autophagosome-like structures (0–3%). In vitro study of megakaryocytes derived from circulating CD34+ cells of the carriers revealed a maturation defect and reduced proplatelet formation potential. The study of the FLI1 variants revealed a significant reduction in protein nuclear accumulation and transcriptional activity properties. Intraplatelet flow cytometry efficiently detected the biomarker MYH10 in FLI1 variant carriers. Overall, this study provides new insights into the phenotype, pathophysiology and diagnosis of FLI1 variant-associated thrombocytopenia.
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Affiliation(s)
- Paul Saultier
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Léa Vidal
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | | | - Denis Bernot
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Céline Falaise
- APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Catherine Pouymayou
- APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | | | - Noémie Saut
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Agathe Rostan
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Véronique Baccini
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | | | - Marie Favier
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Pauline Lucca
- ICAN Institute for Cardiometabolism and Nutrition, Paris, France.,Inserm, UMR_S 1166, Team Genomics and Pathophysiology of Cardiovascular Diseases, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie (UPMC Univ Paris 06), UMR_S 1166, France
| | | | - Robert Olaso
- Centre National de Génotypage, Institut de Génomique, CEA, Evry, France
| | - Anne Boland
- Centre National de Génotypage, Institut de Génomique, CEA, Evry, France
| | - Pierre Emmanuel Morange
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Christian Gachet
- UMR_S949 INSERM, Strasbourg, France.,Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), France.,Université de Strasbourg, Marseille, France
| | - Fabrice Malergue
- Beckman Coulter Immunotech, Life Sciences Global Assay and Applications Development, Marseille, France
| | - Sixtine Fauré
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Anita Eckly
- UMR_S949 INSERM, Strasbourg, France.,Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), France.,Université de Strasbourg, Marseille, France
| | - David-Alexandre Trégouët
- ICAN Institute for Cardiometabolism and Nutrition, Paris, France.,Inserm, UMR_S 1166, Team Genomics and Pathophysiology of Cardiovascular Diseases, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie (UPMC Univ Paris 06), UMR_S 1166, France
| | - Marjorie Poggi
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Marie-Christine Alessi
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
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37
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Strassel C, Bull A, Moog S, Receveur N, Mallo L, Mangin P, Eckly A, Freund M, Dubart-Kupperschmitt A, Gachet C, Lanza F. Lentiviral gene rescue of a Bernard-Soulier mouse model to study platelet glycoprotein Ibβ function. J Thromb Haemost 2016; 14:1470-9. [PMID: 27148783 DOI: 10.1111/jth.13355] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 03/29/2016] [Indexed: 12/01/2022]
Abstract
UNLABELLED Essentials A signaling role of glycoprotein (GP)Ibβ is postulated but not formally demonstrated in platelets. Lentiviral-mediated rescue in knock-out mice can be used to evaluate GPIbβ function in vivo. Transduction of the native subunit corrected the main defects associated with GPIb-IX deficiency Deletion of intracellular 159-170 segment increased thrombosis, 150-160 removal increased bleeding. SUMMARY Background The platelet glycoprotein (GP)Ib-V-IX complex is required for normal hemostasis and megakaryopoiesis. A role in GPIb-dependent responses has been ascribed to the less well characterized GPIbβ subunit using a specific antibody and GPIb-IX transfected cells. Objectives Our aim was to evaluate, in vivo, the role of the GPIbβ in hemostasis and thrombosis. Methods GPIbβ(null) Sca-1(+) progenitors transduced with viral particles harboring hGPIbβ were transplanted into lethally irradiated GPIbβ(-/-) recipient mice. Results hGPIbβ transplanted into the bone marrow of GPIbβ(null) mice rescued GPIb-IX expression in 97% of circulating platelets. These platelets efficiently bound von Willebrand factor (VWF) and extended filopodia on a VWF matrix, demonstrating the restoration of GPIb-dependent adhesive and signaling properties. These mice exhibited less severe macrothrombocytopenia and had normal tail bleeding times as compared with GPIbβ(null) mice. This strategy was employed to manipulate and evaluate the role of the GPIbβ intracellular domain. Removal of the membrane proximal segment (Δ(150-160) ) decreased GPIb-IX expression by 43%, confirming its involvement in receptor assembly and biosynthesis, and resulted in increased bleeding times and decreased thrombosis in a mechanical injury model in the aorta. On the other hand, deletion of the C-flanking 159-170 segment allowed normal GPIb-IX expression, VWF-dependent responses and bleeding times, but resulted in enhanced arterial thrombosis. Conclusion This pointed to a repressor role of GPIbβ in thrombus formation in vivo that was not predicted in studies of heterologous cells. These results highlight the utility of this lentiviral strategy for the structure-function evaluation of GPIb-IX in platelets.
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Affiliation(s)
- C Strassel
- UMR_S949 INSERM, Strasbourg, France
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - A Bull
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - S Moog
- UMR_S949 INSERM, Strasbourg, France
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - N Receveur
- UMR_S949 INSERM, Strasbourg, France
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - L Mallo
- UMR_S949 INSERM, Strasbourg, France
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - P Mangin
- UMR_S949 INSERM, Strasbourg, France
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - A Eckly
- UMR_S949 INSERM, Strasbourg, France
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - M Freund
- UMR_S949 INSERM, Strasbourg, France
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - A Dubart-Kupperschmitt
- INSERM U1193, Hôpital Paul Brousse, Villejuif, France
- UMR_S1193, Université Paris-Sud, Hôpital Paul Brousse, Villejuif, France
- Département hospitalo-universitaire Hepatinov, Hôpital Paul Brousse, Villejuif, France
| | - C Gachet
- UMR_S949 INSERM, Strasbourg, France
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - F Lanza
- UMR_S949 INSERM, Strasbourg, France
- Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
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Antkowiak A, Viaud J, Severin S, Zanoun M, Ceccato L, Chicanne G, Strassel C, Eckly A, Leon C, Gachet C, Payrastre B, Gaits-Iacovoni F. Cdc42-dependent F-actin dynamics drive structuration of the demarcation membrane system in megakaryocytes. J Thromb Haemost 2016; 14:1268-84. [PMID: 26991240 DOI: 10.1111/jth.13318] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 03/03/2016] [Indexed: 02/04/2023]
Abstract
UNLABELLED Essentials Information about the formation of the demarcation membrane system (DMS) is still lacking. We investigated the role of the cytoskeleton in DMS structuration in megakaryocytes. Cdc42/Pak-dependent F-actin remodeling regulates DMS organization for proper megakaryopoiesis. These data highlight the mandatory role of F-actin in platelet biogenesis. SUMMARY Background Blood platelet biogenesis results from the maturation of megakaryocytes (MKs), which involves the development of a complex demarcation membrane system (DMS). Therefore, MK differentiation is an attractive model for studying membrane remodeling. Objectives We sought to investigate the mechanism of DMS structuration in relationship to the cytoskeleton. Results Using three-dimensional (3D) confocal imaging, we have identified consecutive stages of DMS organization that rely on F-actin dynamics to polarize membranes and nuclei territories. Interestingly, microtubules are not involved in this process. We found that the mechanism underlying F-actin-dependent DMS formation required the activation of the guanosine triphosphate hydrolase Cdc42 and its p21-activated kinase effectors (Pak1/2/3). Förster resonance energy transfer demonstrated that active Cdc42 was associated with endomembrane dynamics throughout terminal maturation. Inhibition of Cdc42 or Pak1/2/3 severely destructured the DMS and blocked proplatelet formation. Even though this process does not require containment within the hematopoietic niche, because DMS structuration was observed upon thrombopoietin-treatment in suspension, integrin outside-in signaling was required for Pak activation and probably resulted from secretion of extracellular matrix by MKs. Conclusions These data indicate a functional link, mandatory for MK differentiation, between actin dynamics, regulated by Cdc42/Pak1/2/3, and DMS maturation.
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Affiliation(s)
- A Antkowiak
- INSERM, UMR1048, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - J Viaud
- INSERM, UMR1048, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - S Severin
- INSERM, UMR1048, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - M Zanoun
- INSERM, UMR1048, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - L Ceccato
- INSERM, UMR1048, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - G Chicanne
- INSERM, UMR1048, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - C Strassel
- INSERM, UMR_S949, Université de Strasbourg, Etablissement Français du Sang-Alsace, Toulouse, France
| | - A Eckly
- INSERM, UMR_S949, Université de Strasbourg, Etablissement Français du Sang-Alsace, Toulouse, France
| | - C Leon
- INSERM, UMR_S949, Université de Strasbourg, Etablissement Français du Sang-Alsace, Toulouse, France
| | - C Gachet
- INSERM, UMR_S949, Université de Strasbourg, Etablissement Français du Sang-Alsace, Toulouse, France
| | - B Payrastre
- INSERM, UMR1048, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
- Laboratoire d'Hématologie, CHU de Toulouse, Toulouse, France
| | - F Gaits-Iacovoni
- INSERM, UMR1048, Université Toulouse III, Institut des Maladies Métaboliques et Cardiovasculaires, Toulouse, France
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Cordeiro OG, Chypre M, Brouard N, Rauber S, Alloush F, Romera-Hernandez M, Bénézech C, Li Z, Eckly A, Coles MC, Rot A, Yagita H, Léon C, Ludewig B, Cupedo T, Lanza F, Mueller CG. Integrin-Alpha IIb Identifies Murine Lymph Node Lymphatic Endothelial Cells Responsive to RANKL. PLoS One 2016; 11:e0151848. [PMID: 27010197 PMCID: PMC4806919 DOI: 10.1371/journal.pone.0151848] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 03/04/2016] [Indexed: 12/31/2022] Open
Abstract
Microenvironment and activation signals likely imprint heterogeneity in the lymphatic endothelial cell (LEC) population. Particularly LECs of secondary lymphoid organs are exposed to different cell types and immune stimuli. However, our understanding of the nature of LEC activation signals and their cell source within the secondary lymphoid organ in the steady state remains incomplete. Here we show that integrin alpha 2b (ITGA2b), known to be carried by platelets, megakaryocytes and hematopoietic progenitors, is expressed by a lymph node subset of LECs, residing in medullary, cortical and subcapsular sinuses. In the subcapsular sinus, the floor but not the ceiling layer expresses the integrin, being excluded from ACKR4+ LECs but overlapping with MAdCAM-1 expression. ITGA2b expression increases in response to immunization, raising the possibility that heterogeneous ITGA2b levels reflect variation in exposure to activation signals. We show that alterations of the level of receptor activator of NF-κB ligand (RANKL), by overexpression, neutralization or deletion from stromal marginal reticular cells, affected the proportion of ITGA2b+ LECs. Lymph node LECs but not peripheral LECs express RANK. In addition, we found that lymphotoxin-β receptor signaling likewise regulated the proportion of ITGA2b+ LECs. These findings demonstrate that stromal reticular cells activate LECs via RANKL and support the action of hematopoietic cell-derived lymphotoxin.
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Affiliation(s)
- Olga G. Cordeiro
- CNRS UPR 3572, University of Strasbourg, Laboratory of Immunopathology and Therapeutic Chemistry/ MEDALIS, Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France
| | - Mélanie Chypre
- CNRS UPR 3572, University of Strasbourg, Laboratory of Immunopathology and Therapeutic Chemistry/ MEDALIS, Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France
- Prestwick Chemical, Blvd Gonthier d'Andernach, Parc d’innovation, 67400, Illkirch, France
| | - Nathalie Brouard
- INSERM, UMR_S949, Etablissement Français du Sang-Alsace, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de Strasbourg, Strasbourg, France
| | - Simon Rauber
- CNRS UPR 3572, University of Strasbourg, Laboratory of Immunopathology and Therapeutic Chemistry/ MEDALIS, Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France
| | - Farouk Alloush
- CNRS UPR 3572, University of Strasbourg, Laboratory of Immunopathology and Therapeutic Chemistry/ MEDALIS, Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France
| | | | - Cécile Bénézech
- BHF Centre for Cardiovascular Science, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Zhi Li
- Center for Immunology and Infection, Department of Biology, University of York, York, United Kingdom
| | - Anita Eckly
- INSERM, UMR_S949, Etablissement Français du Sang-Alsace, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de Strasbourg, Strasbourg, France
| | - Mark C. Coles
- Center for Immunology and Infection, Department of Biology, University of York, York, United Kingdom
| | - Antal Rot
- Center for Immunology and Infection, Department of Biology, University of York, York, United Kingdom
| | - Hideo Yagita
- Department of Immunology, Juntendo University School of Medicine, Tokyo, 113–8421, Japan
| | - Catherine Léon
- INSERM, UMR_S949, Etablissement Français du Sang-Alsace, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de Strasbourg, Strasbourg, France
| | - Burkhard Ludewig
- Institute of Immunobiology, Kantonspital St. Gallen, 9007, St. Gallen, Switzerland
| | - Tom Cupedo
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - François Lanza
- INSERM, UMR_S949, Etablissement Français du Sang-Alsace, Faculté de Médecine, Fédération de Médecine Translationnelle, Université de Strasbourg, Strasbourg, France
| | - Christopher G. Mueller
- CNRS UPR 3572, University of Strasbourg, Laboratory of Immunopathology and Therapeutic Chemistry/ MEDALIS, Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France
- * E-mail:
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Angénieux C, Maître B, Eckly A, Lanza F, Gachet C, de la Salle H. Time-Dependent Decay of mRNA and Ribosomal RNA during Platelet Aging and Its Correlation with Translation Activity. PLoS One 2016; 11:e0148064. [PMID: 26808079 PMCID: PMC4726520 DOI: 10.1371/journal.pone.0148064] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 01/12/2016] [Indexed: 01/23/2023] Open
Abstract
Previous investigations have indicated that RNAs are mostly present in the minor population of the youngest platelets, whereas translation in platelets could be biologically important. To attempt to solve this paradox, we studied changes in the RNA content of reticulated platelets, i.e., young cells brightly stained by thiazole orange (TObright), a fluorescent probe for RNAs. We provoked in mice strong thrombocytopenia followed by dramatic thrombocytosis characterized by a short period with a vast majority of reticulated platelets. During thrombocytosis, the TObright platelet count rapidly reached a maximum, after which TOdim platelets accumulated, suggesting that most of the former were converted into the latter within 12 h. Experiments on platelets, freshly isolated or incubated ex vivo at 37°C, indicated that their “RNA content”, here corresponding to the amounts of extracted RNA, and the percentage of TObright platelets were positively correlated. The “RNA Content” normalized to the number of platelets could be 20 to 40 fold higher when 80–90% of the cells were reticulated (20–40 fg/platelet), than when only 5–10% of control cells were TObright (less than 1fg/platelet). TObright platelets, incubated ex vivo at 37°C or transfused into mice, became TOdim within 24 h. Ex vivo at 37°C, platelets lost about half of their ribosomal and beta actin RNAs within 6 hours, and more than 98% of them after 24 hours. Accordingly, fluorescence in situ hybridization techniques confirmed the presence of beta actin mRNAs in most reticulated-enriched platelets, but detected them in only a minor subset of control platelets. In vitro, constitutive translation decreased considerably within less than 6 hours, questioning how protein synthesis in platelets, especially in non-reticulated ones, could have a biological function in vivo. Nevertheless, constitutive transient translation in young platelets under pathological conditions characterized by a dramatic increase in circulating reticulated platelets could deserve to be investigated.
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Affiliation(s)
- Catherine Angénieux
- UMR_S949, INSERM, Strasbourg, France
- Etablissement Français du Sang-Alsace (EFS-Alsace), Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Blandine Maître
- UMR_S949, INSERM, Strasbourg, France
- Etablissement Français du Sang-Alsace (EFS-Alsace), Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Anita Eckly
- UMR_S949, INSERM, Strasbourg, France
- Etablissement Français du Sang-Alsace (EFS-Alsace), Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - François Lanza
- UMR_S949, INSERM, Strasbourg, France
- Etablissement Français du Sang-Alsace (EFS-Alsace), Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Christian Gachet
- UMR_S949, INSERM, Strasbourg, France
- Etablissement Français du Sang-Alsace (EFS-Alsace), Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
| | - Henri de la Salle
- UMR_S949, INSERM, Strasbourg, France
- Etablissement Français du Sang-Alsace (EFS-Alsace), Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Université de Strasbourg, Strasbourg, France
- * E-mail:
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Hechler B, Ravanat C, Ohlmann P, Eckly A, Leduc M, Guillonneau F, Isola H, Gachet C. L’inactivation des pathogènes par la technologie Intercept® préserve l’ultrastructure et les propriétés biochimiques des plaquettes au cours de leur conservation en vue de transfusion. Transfus Clin Biol 2015. [DOI: 10.1016/j.tracli.2015.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Badirou I, Pan J, Souquere S, Legrand C, Pierron G, Wang A, Eckly A, Roy A, Gachet C, Vainchenker W, Chang Y, Léon C. Distinct localizations and roles of non-muscle myosin II during proplatelet formation and platelet release. J Thromb Haemost 2015; 13:851-9. [PMID: 25736522 DOI: 10.1111/jth.12887] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 02/24/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND At the end of maturation, megakaryocytes (MKs) form long cytoplasmic extensions called proplatelets (PPT). Enormous changes in cytoskeletal structures cause PPT to extend further, to re-localize organelles such as mitochondria and to fragment, leading to platelet release. Two non-muscle myosin IIs (NMIIs) are expressed in MKs; however, only NMII-A (MYH9), but not NMII-B (MYH10), is expressed in mature MKs and is implicated in PPT formation. OBJECTIVES To provide in vivo evidence on the specific role of NMII-A and IIB in MK PPT formation. METHODS We studied two transgenic mouse models in which non-muscle myosin heavy chain (NMHC) II-A was genetically replaced either by II-B or by a chimeric NMHCII that combined the head domain of II-A with the rod and tail domains of II-B. RESULTS AND CONCLUSIONS This work demonstrates that the kinetic properties of NM-IIA, depending on the N-terminal domain, render NMII-A the better NMII candidate to control PPT formation. Furthermore, the carboxyl-terminal domain determines myosin II localization in the constriction region of PPT and is responsible for the specific role of NMII in platelet release.
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Affiliation(s)
- I Badirou
- Institut National de la Santé et de la Recherche Médicale, Villejuif, France; Université Paris-Sud, Le Kremlin-Bicêtre, France; Institut Gustave Roussy, Villejuif, France
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Donnet T, Ravanat C, Eckly A, Maurer E, Alame G, Ziessel C, Mangin PH, Freund M, Cazenave JP, Gachet C, Rendu F. Dehydration of blood platelets by zeodration: in vitro characterization and hemostatic properties in vivo. Transfusion 2015; 55:2207-18. [DOI: 10.1111/trf.13121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 02/23/2015] [Accepted: 02/28/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Thibault Donnet
- UMR_S949 EFS Alsace; INSERM, Université De Strasbourg; Strasbourg
- Faculté De Médecine Pitié-Salpêtrière; UMR_S956 INSERM, UPMC; Paris France
| | | | - Anita Eckly
- UMR_S949 EFS Alsace; INSERM, Université De Strasbourg; Strasbourg
| | - Eric Maurer
- UMR_S949 EFS Alsace; INSERM, Université De Strasbourg; Strasbourg
| | - Ghina Alame
- UMR_S949 EFS Alsace; INSERM, Université De Strasbourg; Strasbourg
| | | | - Pierre H. Mangin
- UMR_S949 EFS Alsace; INSERM, Université De Strasbourg; Strasbourg
| | - Monique Freund
- UMR_S949 EFS Alsace; INSERM, Université De Strasbourg; Strasbourg
| | | | - Christian Gachet
- UMR_S949 EFS Alsace; INSERM, Université De Strasbourg; Strasbourg
| | - Francine Rendu
- Faculté De Médecine Pitié-Salpêtrière; UMR_S956 INSERM, UPMC; Paris France
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Mountford JK, Petitjean C, Putra HWK, McCafferty JA, Setiabakti NM, Lee H, Tønnesen LL, McFadyen JD, Schoenwaelder SM, Eckly A, Gachet C, Ellis S, Voss AK, Dickins RA, Hamilton JR, Jackson SP. The class II PI 3-kinase, PI3KC2α, links platelet internal membrane structure to shear-dependent adhesive function. Nat Commun 2015; 6:6535. [PMID: 25779105 DOI: 10.1038/ncomms7535] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 02/05/2015] [Indexed: 12/29/2022] Open
Abstract
PI3KC2α is a broadly expressed lipid kinase with critical functions during embryonic development but poorly defined roles in adult physiology. Here we utilize multiple mouse genetic models to uncover a role for PI3KC2α in regulating the internal membrane reserve structure of megakaryocytes (demarcation membrane system) and platelets (open canalicular system) that results in dysregulated platelet adhesion under haemodynamic shear stress. Structural alterations in the platelet internal membrane lead to enhanced membrane tether formation that is associated with accelerated, yet highly unstable, thrombus formation in vitro and in vivo. Notably, agonist-induced 3-phosphorylated phosphoinositide production and cellular activation are normal in PI3KC2α-deficient platelets. These findings demonstrate an important role for PI3KC2α in regulating shear-dependent platelet adhesion via regulation of membrane structure, rather than acute signalling. These studies provide a link between the open canalicular system and platelet adhesive function that has relevance to the primary haemostatic and prothrombotic function of platelets.
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Affiliation(s)
- Jessica K Mountford
- Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia
| | - Claire Petitjean
- Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia
| | - Harun W Kusuma Putra
- Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia
| | - Jonathan A McCafferty
- Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia
| | - Natasha M Setiabakti
- Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia
| | - Hannah Lee
- Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia
| | - Lotte L Tønnesen
- Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia
| | - James D McFadyen
- Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia
| | - Simone M Schoenwaelder
- 1] Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia [2] The Heart Research Institute and Charles Perkins Centre, The University of Sydney, Newtown 2050, Australia
| | - Anita Eckly
- Unité mixte de recherche S949 Institut National de la Santé et de la Recherche Médicale, Université de Strasbourg, Etablissement Français du Sang-Alsace 67000, Strasbourg, France
| | - Christian Gachet
- Unité mixte de recherche S949 Institut National de la Santé et de la Recherche Médicale, Université de Strasbourg, Etablissement Français du Sang-Alsace 67000, Strasbourg, France
| | - Sarah Ellis
- Sir Peter MacCallum Department of Oncology, Peter MacCallum Cancer Centre and The University of Melbourne, Melbourne, Victoria 3052, Australia
| | - Anne K Voss
- 1] Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3052, Australia [2] Department of Medical Biology, University of Melbourne, Melbourne, Victoria 3052, Australia
| | - Ross A Dickins
- 1] Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3052, Australia [2] Department of Medical Biology, University of Melbourne, Melbourne, Victoria 3052, Australia
| | - Justin R Hamilton
- Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia
| | - Shaun P Jackson
- 1] Australian Centre for Blood Diseases, Monash University, Level 6, 89 Commercial Road, Melbourne, Victoria 3004, Australia [2] The Heart Research Institute and Charles Perkins Centre, The University of Sydney, Newtown 2050, Australia [3] Department of Molecular and Experimental Medicine, The Scripps Research Institute, San Diego, CA 92037, USA
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Pertuy F, Aguilar A, Strassel C, Eckly A, Freund JN, Duluc I, Gachet C, Lanza F, Léon C. Broader expression of the mouse platelet factor 4-cre transgene beyond the megakaryocyte lineage. J Thromb Haemost 2015; 13:115-25. [PMID: 25393502 DOI: 10.1111/jth.12784] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 11/01/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND Transgenic mice expressing cre recombinase under the control of the platelet factor 4 (Pf4) promoter, in the context of a 100-kb bacterial artificial chromosome, have become a valuable tool with which to study genetic modifications in the platelet lineage. However, the specificity of cre expression has recently been questioned, and the time of its onset during megakaryopoiesis remains unknown. OBJECTIVES/METHODS To characterize the expression of this transgene, we used double-fluorescent cre reporter mice. RESULTS In the bone marrow, Pf4-cre-mediated recombination had occurred in all CD42-positive megakaryocytes as early as stage I of maturation, and in rare CD42-negative cells. In circulating blood, all platelets had recombined, along with only a minor fraction of CD45-positive cells. However, we found that all tissues contained recombined cells of monocyte/macrophage origin. When recombined, these cells might potentially modify the function of the tissues under particular conditions, especially inflammatory conditions, which further increase recombination in immune cells. Unexpectedly, a subset of epithelial cells from the distal colon showed signs of recombination resulting from endogenous Pf4-cre expression. This is probably the basis of the unexplained colon tumors developed by Apc(flox/flox) ;Pf4-cre mice, generated in a separate study on the role of Apc in platelet formation. CONCLUSION Altogether, our results indicate early recombination with full penetrance in megakaryopoiesis, and confirm the value of Pf4-cre mice for the genetic engineering of megakaryocytes and platelets. However, care must be taken when investigating the role of platelets in processes outside hemostasis, especially when immune cells might be involved.
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Affiliation(s)
- F Pertuy
- INSERM, UMR_S949, Strasbourg, France; Etablissement Français du Sang-Alsace, Strasbourg, France; Faculté de Médecine, Université de Strasbourg, Strasbourg, France; Fédération de Médecine Translationnelle, Strasbourg, France
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Tersteeg C, Heijnen HF, Eckly A, Pasterkamp G, Urbanus RT, Maas C, Hoefer IE, Nieuwland R, Farndale RW, Gachet C, de Groot PG, Roest M. FLow-induced PRotrusions (FLIPRs): a platelet-derived platform for the retrieval of microparticles by monocytes and neutrophils. Circ Res 2014; 114:780-91. [PMID: 24406984 DOI: 10.1161/circresaha.114.302361] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
RATIONALE Platelets are the most important cells in the primary prevention of blood loss after injury. In addition, platelets are at the interface between circulating leukocytes and the (sub)endothelium regulating inflammatory responses. OBJECTIVE Our aim was to study the dynamic process that leads to the formation of procoagulant and proinflammatory platelets under physiological flow. METHODS AND RESULTS In the present study, we describe the formation of extremely long, negatively charged membrane strands that emerge from platelets adhered under flow. These flow-induced protrusions (FLIPRs) are formed in vitro on different physiological substrates and are also detected in vivo in a mouse carotid injury model. FLIPRs are formed downstream the adherent and activated platelets and reach lengths of 250 μm. FLIPR formation is shear-dependent and requires cyclophilin D, calpain, and Rac1 activation. It is accompanied by a disassembly of the F-actin and microtubule organization. Monocytes and neutrophils roll over FLIPRs in a P-selectin/P-selectin glycoprotein ligand-1-dependent manner, retrieving fragments of FLIPRs as microparticles on their surface. Consequently, monocytes and neutrophils become activated, as demonstrated by increased CD11b expression and L-selectin shedding. CONCLUSIONS The formation of long platelet membrane extensions, such as the ones presented in our flow model, may pave the way to generate an increased membrane surface for interaction with monocytes and neutrophils. Our study provides a mechanistic model for platelet membrane transfer and the generation of monocyte/neutrophil-microparticle complexes. We propose that the formation of FLIPRs in vivo contributes to the well-established proinflammatory function of platelets and platelet-derived microparticles.
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Affiliation(s)
- Claudia Tersteeg
- From the Laboratory of Clinical Chemistry and Haematology (C.T., H.F.H., R.T.U., C.M., P.G.d.G., M.R.), Laboratory of Experimental Cardiology (C.T., G.P., I.E.H.), and Cell Microscopy Center, Department of Cell Biology (H.F.H.), UMC Utrecht, Utrecht, The Netherlands; UMR-S949 INSERM, EFS-Alsace, Université de Strasbourg, Strasbourg, France (A.E., C.G.); Department of Clinical Chemistry, AMC Amsterdam, Amsterdam, The Netherlands (R.N.); and Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom (R.W.F.)
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Schaff M, Tang C, Maurer E, Bourdon C, Receveur N, Eckly A, Hechler B, Arnold C, de Arcangelis A, Nieswandt B, Denis CV, Lefebvre O, Georges-Labouesse E, Gachet C, Lanza F, Mangin PH. Integrin α6β1 is the main receptor for vascular laminins and plays a role in platelet adhesion, activation, and arterial thrombosis. Circulation 2013; 128:541-52. [PMID: 23797810 DOI: 10.1161/circulationaha.112.000799] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Laminins are major components of basement membranes, well located to interact with platelets upon vascular injury. Laminin-111 (α1β1γ1) is known to support platelet adhesion but is absent from most blood vessels, which contain isoforms with the α2, α4, or α5 chain. Whether vascular laminins support platelet adhesion and activation and the significance of these interactions in hemostasis and thrombosis remain unknown. METHODS AND RESULTS Using an in vitro flow assay, we show that laminin-411 (α4β1γ1), laminin-511 (α5β1γ1), and laminin-521 (α5β2γ1), but not laminin-211 (α2β1γ1), allow efficient platelet adhesion and activation across a wide range of arterial wall shear rates. Adhesion was critically dependent on integrin α6β1 and the glycoprotein Ib-IX complex, which binds to plasmatic von Willebrand factor adsorbed on laminins. Glycoprotein VI did not participate in the adhesive process but mediated platelet activation induced by α5-containing laminins. To address the significance of platelet/laminin interactions in vivo, we developed a platelet-specific knockout of integrin α6. Platelets from these mice failed to adhere to laminin-411, laminin-511, and laminin-521 but responded normally to a series of agonists. α6β1-Deficient mice presented a marked decrease in arterial thrombosis in 3 models of injury of the carotid, aorta, and mesenteric arterioles. The tail bleeding time and blood loss remained unaltered, indicating normal hemostasis. CONCLUSIONS This study reveals an unsuspected important contribution of laminins to thrombus formation in vivo and suggests that targeting their main receptor, integrin α6β1, could represent an alternative antithrombotic strategy with a potentially low bleeding risk.
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Affiliation(s)
- Mathieu Schaff
- Unité Mixte de Recherche (UMR) S949, Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Strasbourg, Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France
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Hechler B, Ohlmann P, Chafey P, Ravanat C, Eckly A, Maurer E, Mangin P, Isola H, Cazenave JP, Gachet C. L’inactivation des pathogènes par la technologie Intercept® préserve les propriétés fonctionnelles et biochimiques des plaquettes au cours de leur conservation en vue de transfusion. Transfus Clin Biol 2013. [DOI: 10.1016/j.tracli.2013.03.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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49
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Hechler B, Ohlmann P, Chafey P, Ravanat C, Eckly A, Maurer E, Mangin P, Isola H, Cazenave JP, Gachet C. Preserved functional and biochemical characteristics of platelet components prepared with amotosalen and ultraviolet A for pathogen inactivation. Transfusion 2013; 53:1187-200. [PMID: 23067365 DOI: 10.1111/j.1537-2995.2012.03923.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 07/23/2012] [Accepted: 08/15/2012] [Indexed: 01/28/2023]
Abstract
BACKGROUND Platelet concentrate (PC) functionality decreases during storage. This is referred to as the storage lesion. Pathogen inactivation may accelerate or induce lesions, potentially accounting for reduced viability. Our aim was to characterize functional and biochemical properties of platelets (PLTs) from photochemically treated buffy-coat PCs (PCT-PCs) compared to those from conventional PCs. STUDY DESIGN AND METHODS Four PCT-PCs and four conventional PCs were stored for 6.5 days and PLT function and proteomic profiles were examined at various time points during storage. To evaluate their intrinsic properties, samples of stored PLTs were taken, washed, and suspended in Tyrode's buffer before testing. RESULTS PLT counts and morphology were conserved although a slight increase in the PLT volume was observed after PCT. Glycoprotein (GP) IIbIIIa, IaIIa, and VI expression remained stable while GPIbα declined similarly in both types of PCs. A steep decrease (50%) in GPV occurred on Day 1.5 in PCT-PCs and Day 2.5 in control PCs. For both PCT- and control PCs, P-selectin expression and activated GPIIbIIIa remained low during storage. PCT- and control PCs were fully responsive to aggregation agonists up to Day 4.5 and exhibited similar perfusion functionality. Mitochondrial membrane potential and annexin A5 binding of PCT-PCs and control PCs were comparable. Two-dimensional differential in-gel electrophoresis and mass spectrometry profiles for 1882 protein spots revealed only three proteins selectively changed in PCT-PCs compared to control-PCs. CONCLUSION Washed treated and untreated PCs have similar functional, morphologic, and proteomic characteristics provided that PLTs are suspended in an appropriate medium during testing.
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Affiliation(s)
- Béatrice Hechler
- INSERM, UMR_S949, Université de Strasbourg, Etablissement Français du Sang-Alsace (EFS-Alsace), Strasbourg, France
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Eckly A, Ravanat C, Isola H, Ohlmann P, Kientz D, Laforet M, Gachet C, Cazenave J. La morphologie ultrastructurale et les paramètres métaboliques des globules rouges traités par le procédé INTERCEPT-RBC sont préservés au cours du stockage. Transfus Clin Biol 2013. [DOI: 10.1016/j.tracli.2013.03.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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