CASP3 and infection: In 293T cells that stably express DFNA5, activation of caspase-3 by stimulation of the mitochondrial apoptotic pathway with Bax overexpression, or infection by the apoptosis-inducing vesicular stomatitis virus (VSV) or encephalomyocarditis virus (ECMV) results in cleavage of DFNA5 and induction of secondary necrosis.