Scientific reports

Autor: François Lanza, Christian Gachet, Léa Mallo, V. Do Sacramento, Anita Eckly, Béatrice Hechler, Catherine Strassel, Monique Freund, Pierre Mangin
Přispěvatelé: Biologie et Pharmacologie des Plaquettes sanguines : hémostase, thrombose, transfusion (BPP), Université de Strasbourg (UNISTRA)-EFS-Institut National de la Santé et de la Recherche Médicale (INSERM), Bodescot, Myriam
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
Scientific Reports
Scientific Reports, 2020, 10 (1), pp.914. ⟨10.1038/s41598-020-57754-9⟩
ISSN: 2045-2322
DOI: 10.1038/s41598-020-57754-9
Popis: The in vitro production of blood platelets for transfusion purposes is an important goal in the context of a sustained demand for controlled products free of infectious, immune and inflammatory risks. The aim of this study was to characterize human platelets derived from CD34+ progenitors and to evaluate their hemostatic properties. These cultured platelets exhibited a typical discoid morphology despite an enlarged size and expressed normal levels of the major surface glycoproteins. They aggregated in response to ADP and a thrombin receptor agonist peptide (TRAP). After infusion into NSG mice, cultured and native platelets circulated with a similar 24 h half-life. Notably, the level of circulating cultured platelets remained constant during the first two hours following infusion. During this period of time their size decreased to reach normal values, probably due to their remodeling in the pulmonary circulation, as evidenced by the presence of numerous twisted platelet elements in the lungs. Finally, cultured platelets were capable of limiting blood loss in a bleeding assay performed in thrombocytopenic mice. In conclusion, we show here that cultured platelets derived from human CD34+ cells display the properties required for use in transfusion, opening the way to clinical trials.
Databáze: OpenAIRE
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