Platelets play crucial roles in hemostasis, thrombosis, and immunity, but our understanding of their complex biogenesis (thrombopoiesis) is currently incomplete. Deeper insight into the mechanisms of platelet biogenesis inside and outside the body is fundamental for managing hematological disorders and for the development of novel cell-based therapies. In this article, we address the current understanding of in vivo thrombopoiesis, including mechanisms of platelet generation from megakaryocytes (proplatelet formation, cytoplasmic fragmentation, and membrane budding) and their physiological location. Progress has been made in replicating these processes in vitro for potential therapeutic application, notably in platelet transfusion and bioengineering of platelets for novel targeted therapies. The current platelet-generating systems and their limitations, particularly yield, scalability, and functionality, are discussed. Finally, we highlight the current controversies and challenges in the field that need to be addressed to achieve a full understanding of these processes, in vivo and in vitro.
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November 28, 2024
Platelet generation in vivo and in vitro
Jonathan A. Furniss,
Jonathan A. Furniss
School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, United Kingdom
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Nathalie Tarassova,
Nathalie Tarassova
School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, United Kingdom
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Alastair W. Poole
Alastair W. Poole
School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, United Kingdom
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Blood (2024) 144 (22): 2283–2294.
Article history
Submitted:
June 10, 2024
Accepted:
September 20, 2024
First Edition:
October 2, 2024
Citation
Jonathan A. Furniss, Nathalie Tarassova, Alastair W. Poole; Platelet generation in vivo and in vitro. Blood 2024; 144 (22): 2283–2294. doi: https://doi.org/10.1182/blood.2024024601
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November 28 2024
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