1. Departments of Cell Biology (T.A., A.M.Q., B.T., M.C.C.)
2. Pharmaco-Biology (T.A., M.C.C.), University of Calabria, Arcavacata di Rende 87030, Italy
3. Department of Medicine (B.K.B., P.T.L., S.K.M.), University of California and Veterans Affairs San Diego Healthcare System, San Diego, California 92093-0838