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During mammalian ontogeny, haematopoietic stem cells (HSCs) translocate from the fetal liver to the bone marrow, where haematopoiesis occurs throughout adulthood. Unique features of bone that contribute to a microenvironmental niche for stem cells might include the known high concentration of calcium ions at the HSC-enriched endosteal surface. Cells respond(More)
Haematopoietic stem and progenitor cells (HSPCs) change location during development and circulate in mammals throughout life, moving into and out of the bloodstream to engage bone marrow niches in sequential steps of homing, engraftment and retention. Here we show that HSPC engraftment of bone marrow in fetal development is dependent on the(More)
Hematopoietic stem/progenitor cells (HSPC) transition in location during development1 and circulate in mammals throughout life2, moving into and out of the bloodstream to engage bone marrow (BM) niches in sequential steps of homing, engraftment and retention3–5. We show here that HSPC engraftment of BM in fetal development is dependent upon the guanine(More)
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