to further define the growth factors required for the in vitro proliferation of erythroid progenitors in polycythemia vera ( pv ) , we have compared the ability of interleukin 3 ( il-3 ) and granulocyte-macrophage colony-stimulating factor ( gm-csf ) to support the growth of erythropoietin ( epo ) -dependent and -independent erythroid colony formation .
C0018284
growth factors
C0079460
granulocyte-macrophage colony-stimulating factor