Embryonic origin of the adult hematopoietic system: advances and questions |
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Authors: | Medvinsky Alexander Rybtsov Stanislav Taoudi Samir |
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Institution: | MRC Centre for Regenerative Medicine, Institute for Stem Cell Research, University of Edinburgh, Edinburgh EH9 3JQ, UK. a.medvinsky@ed.ac.uk |
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Abstract: | Definitive hematopoietic stem cells (HSCs) lie at the foundation of the adult hematopoietic system and provide an organism throughout its life with all blood cell types. Several tissues demonstrate hematopoietic activity at early stages of embryonic development, but which tissue is the primary source of these important cells and what are the early embryonic ancestors of definitive HSCs? Here, we review recent advances in the field of HSC research that have shed light on such questions, while setting them into a historical context, and discuss key issues currently circulating in this field. |
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