Medvinsky, A.L.

stromal clone hematopoietic stromal clones liver adult blood support embryo culture coculture mouse maintenance number c-kit stromal cells hematopoietic progenitors microenvironment progenitors yolk sac 4 weeks subregion stromal cell lines cell lines recipient analysis region hsc activity tissue murine agm region repopulating control transplantation activity stroma development mouse embryo medium marker stromal cell clones hematopoietic cells result growth adult recipients marrow donor 26-1b expression ability ltc-cfc dzierzak 30 minutes urogenital study dzierzak e repopulation table dorsal aorta ug 26-1b differentiation 0/2 anti-cd repopulated university assay input adult bm 4 months blood cells medvinsky agm-derived experiment 30-3f matrigel cultures bone marrow minute hematopoietic tissues oostendorp origin