type beta transforming growth factor ( tgf beta ) -like activity was identified in conditioned medium obtained from immature porcine sertoli cell-enriched cultures using the following criteria : ( i ) stimulation of anchorage independent growth of mesenchymal cell lines , ( ii ) competition with pure human tgf beta in a radioreceptor assay .
C0040691
transforming growth factor
C0040690
tgf beta