Transforming growth factor‐β induces apoptosis in rat FaO hepatoma cells via cytochrome c Release and oligomerization of Apaf‐1 to form a ∼700‐kd apoptosome caspase–processing complex
Caroline Freathy, David G. Brown, Ruth A. Roberts, Kelvin Cain – 30 December 2003 – In mammalian cells, non receptor‐mediated apoptosis occurs via the cytochrome c–dependent assembly of a ∼700‐kd apoptotic protease‐activating factor 1 (Apaf‐1)/caspase‐9 containing apoptosome complex. This initiates the postmitochondrial‐mediated effector caspase cascade. We now show that receptor mediated transforming growth factor β1(TGF‐β1)–induced apoptosis in rat hepatoma cells is accompanied by processing and activation of caspases‐2, ‐3, ‐7, and ‐8.