Abstract
Platelets are defined as terminally differentiated cells incapable of more complex cell processes like cell division or fission processes. Therefore, megakaryocytes are viewed as the only parent cell producing mature platelets. Nevertheless, the cellular fragments, termed proplatelet extension, released by the megakaryocytes exceed platelet dimension, leaving the question if further maturation of platelets in the blood stream is a potential concept of platelet formation. In this chapter we will review established and emerging findings relevant to platelet morphogenesis in the circulation. Furthermore, some of the known regulatory mechanisms involved will be discussed and useful methods and tool to study platelet morphogenesis will be highlighted.
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Acknowledgments
We thank Ms. Diana Lim for her excellent figure preparation and Dr. Guy Zimmerman for his thoughtful suggestions and insights. We appreciate Ms. Nancy Chandler’s assistance with preparing SEM images and we thank Dr. Walter H. Kahr for his collaboration with TEM pictures. This work was supported by the NIH (HL126547 and HL112311) and the NIA (AG048022). Dr. Hansjörg Schwertz was supported by a Lichtenberg-Professorship from the Volkswagen Foundation.
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Rondina, M.T., Schwertz, H. (2016). Morphogenesis of Platelets in the Circulation. In: Schulze, H., Italiano, J. (eds) Molecular and Cellular Biology of Platelet Formation. Springer, Cham. https://doi.org/10.1007/978-3-319-39562-3_5
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DOI: https://doi.org/10.1007/978-3-319-39562-3_5
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