Preclinical Development of a Cryopreservable Megakaryocyte Cell Product from Cord Blood Derived Hematopoietic Stem Cells
Blood(2016)
摘要
Platelet (PTL) transfusions are currently the most effective treatment for patients with thrombocytopenia. Demand for PTL transfusions has steadily increased in recent years, straining a PTL supply that is already limited due to dependency on volunteer donors, short shelf life, risk of infections, and alloimmunization. This dilemma has stimulated the search for alternative approaches for generating PTLs ex vivo from different sources of hematopoietic stem cells (HSCs). Although PTLs have been successfully generated in cultures initiated with primary human CD34+ cells and pluripotent stem cells, the generation of a clinically relevant PTL product ex vivo faces significant obstacles due to scalability, reproducibility and shelf life. We propose an alternative approach to overcome such obstacles by developing a cryopreservable cell product consisting of megakaryocytes (MK) that can produce PTL in vivo after transfusion into patients.
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