we have found that keratinocytes expressing p21v-ras are independent of epidermal growth factor ( egf ) -- a factor which is normally essential for progressive colony growth , but that they are otherwise indistinguishable in culture from normal cells . v-ras keratinocytes also secrete a factor possessing some specific biological activities of members of the fibroblast growth factor ( fgf ) family , but which is distinct from acidic and basic fgf .
C0016026
fibroblast growth factor
C0380603
basic fgf