Down-regulation of the erbB-2 receptor by trastuzumab (Herceptin) enhances tumor necrosis factor related apoptosis-inducing ligand-mediated apoptosis in breast and ovarian cancer cell lines that overexpress erbB-2. - Cuello,M.; Ettenberg,S.A.; Clark,A.S.; Keane,M.M.; Posner,R.H.; Nau,M.M.; Dennis,P.A.; Lipkowitz,S. (Cancer Research, 2001)