these data demonstrate that the b subunit has both stimulatory and inhibitory effects on dna synthesis in frtl-5 cells depending on the presence of other growth factors and that these effects on cell proliferation by the interaction of the b subunit , possibly with cell surface ganglioside gm1 , may involve a mechanism independent from the modulation of membrane receptor function through interaction with growth factor receptor .
C0007634
cells
C0596290
cell