Smad4/DPC4: A barrier against tumor progression driven by RTK/Ras/Erk and Wnt/GSK3 signaling

Abstract excerpt

The tumor suppressor Smad4/DPC4 is an essential transcription factor in the TGF-β pathway that was previously thought to function constitutively. We recently reported that Smad4 activity and stability are directly regulated by 2 major signaling pathways, RTK/MAPK and Wnt/GSK3. Here we examine the molecular, cellular, and potential therapeutic significance of these findings.

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