Brekelmans, P.J.A.M.

thymocyte thymic thymu development lmmunol expression differentiation t cell development cd 71 culture antibody receptor stromal thymic stromal cells cd 4 • epithelial t cell differentiation molecule selection microenvironment treatment subpopulation staining antigen t cells medullary stage class chapter surface interaction thymic microenvironments study cd 71 expression murine medulla proliferation control er-tr organ cd 71 treatment analysis stromal cells epithelial cells mouse number van ewijk yo t cells cd 71 mab pattern lineage adult medullary tec figure nature ewijk result thymic epithelial cells population function transferrin cortex macrophage adult thymus effect transferrin receptor precursor cytokine lymphocytes il -2 day 14 characterization anti-la treatment thymocy section presence er-mp cycling thymocyte subpopulations thymus organ culture