Fig. 5.
Proposed model for Dyn1-dependent endocytosis of TRAIL–DR complexes to suppress apoptotic signaling. TRAIL-induced DR activation leads to caspase-8 cleavage/activation, which in turn activates RyR-mediated Ca2+ release from ER stores and calcineurin activation to dephosphorylate and activate Dyn1. The selective regulation of TRAIL–DR endocytosis suppresses TRAIL-mediated apoptosis in cancer cells.
