rat sciatic nerve schwann cells in culture respond to a limited range of mitogens , including glial growth factor , transforming growth factors beta-1 and beta-2 ( tgf-beta 1 , tgf-beta 2 ) , some cell membrane-associated factors , and to agents such as cholera toxin and forskolin which raise intracellular levels of camp .
C1366557
transforming growth factors beta-1
C0080222
tgf-beta 1