we report here the results of studies designed to further investigate the capability of various cytokines ( il-1 and interleukins-2 and -3 ) to protect bone marrow-derived hematopoietic progenitors [ granulocyte-macrophage and megakaryocyte colony-forming units ( cfu-gm and cfu-meg ) ] from radiation exposure in vitro .
C0005953
bone marrow
C0018957
hematopoietic