1. From the Department of Surgery, Division of Vascular Surgery, Vanderbilt University Medical Center (X.Q., M.A.C., R.J.G.), Nashville, Tenn; Guangxi Medical University First Affiliated Hospital, China (X.Q.); and the Departments of Cell and Developmental Biology (R.J.G.) and Cancer Biology (L.M.M.), Vanderbilt University Medical Center, Nashville, Tenn.