Oostendorp, R.A.

stromal hematopoietic clone stromal cell lines expression stromal cells stromal clones blood number bcl -2 liver culture embryo analysis differentiation mouse adult figure cell lines coculture activity region tissue growth support protein control maintenance factor medium recipient marrow murine agm region study table experiment ug 26-1b 26-1b level c-kit el 08-1d progenitors apoptosi increase result 08-1d tgf-b hematopoietic differentiation hsc activity 1.2 minute presence overexpression mouse embryo hematopoietic cells dzierzak repopulating tsa 58 transgene cell hematopoietic differentiation nontransgenic aorta bcl -2 overexpression igfbp tsa 58 gene hematopoietic progenitors e 11 agm development transgene tsa 58 20.1b cd 45+ cells microenvironment rt-pcr oostendorp antibody hematopoiesi 20.1b cell line k 6-sp cells hesc-derived