the derivative cell lines grow well in platelet-poor plasma or in serum-free medium supplemented with the appropriate growth factors , while balb/c3t3 cells do not grow in platelet-poor plasma , nor do they grow in serum-free medium unless supplemented with both platelet-derived growth factor and insulin ( or igf-1 ) .
C0018284
growth factors
C0032200
platelet-derived growth factor