Hematopoietic and Endothelial Development of Mouse Embryonic Stem Cells in Culture
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Embryonic stem (ES) cells differentiate efficiently in vitro and give rise to many different somatic cell types. Hematopoietic progenitors present within differentiated ES cells (embryoid bodies, EBs) can be identified by replating EB cells into semisolid media with hematopoietic growth factors. The developmental kinetics of various hematopoietic lineage precursors within EBs and molecular and cellular studies of these cells have suggested that the sequence of events leading to the onset of hematopoiesis within EBs is similar to that found within the mouse embryo. Thus, the in vitro differentiation model of ES cells provides a unique opportunity to study onset mechanisms involved in hematopoietic development.
