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Clinical impact of glycans in platelet and megakaryocyte biology.

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Humans produce and remove 1011 platelets daily to maintain a steady-state platelet count. The production of platelets by bone marrow megakaryocytes and their removal from the blood circulation are tightly… Click to show full abstract

Humans produce and remove 1011 platelets daily to maintain a steady-state platelet count. The production of platelets by bone marrow megakaryocytes and their removal from the blood circulation are tightly regulated mechanisms, and abnormalities in both processes can result in thrombocytopenia (low platelet count) or thrombocytosis (high platelet count), often associated with the risk of bleeding or overt thrombus formation, respectively. This review focuses on the role of glycans, also known as carbohydrates or oligosaccharides, including N- and O-glycans, proteoglycans, and glycosaminoglycans, in human and mouse platelet and megakaryocyte physiology. Based on recent clinical observations and mouse models, we focused on the pathological aspects of glycan biosynthesis and degradation and its effects on platelet numbers and megakaryocyte function.

Keywords: impact glycans; platelet megakaryocyte; clinical impact; platelet count; biology

Journal Title: Blood
Year Published: 2022

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