Farrow et al., DNA Cell Biol 1999
:
Finally, TGFbeta1 failed to alter significantly the endogenous levels of the cell-specific activator protein GHF-1/Pit-1, indicating that the TGFbeta1 inhibitory effect is not attributable to diminished levels of GHF-1/Pit-1 Palmer et al., Endocrinology 2000
(MAP Kinase Signaling System) :
Consistently, Northern blotting analysis showed a dose dependent increase in Glvr-1 messenger RNA expression in response to TGF-beta1 , which preceded the maximal stimulation of Pi transport by several hours