Human pluripotent stem cells (PSCs) have the potential to provide a virtually unlimited supply of cells for transplantation therapy. When combined with recent advances in genome editing technologies, human PSCs could offer various approaches that enable gene therapy, drug discovery, disease modeling, and in vitro modeling of human development. De novo generation of hematopoietic stem cells (HSCs) from human PSCs is an important focus in the field, since it enables autologous HSC transplantation to treat many blood disorders and malignancies. Although culture conditions have been established to generate a broad spectrum of hematopoietic progenitors from human PSCs, it remains a significant challenge to generate bona fide HSCs that possess sustained self-renewal and multilineage differentiation capacities upon transplantation. In this review, recent promising advances in the efforts to generate HSCs and hematopoietic progenitors from human PSCs in vitro and in vivo or from somatic cells are discussed.
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