Institution: | From the Departments of ‡Cancer Biologyand ;‖Medical Oncology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030, ;the §Department of Gastroenterology, First Affiliated Hospital of Guangzhou Medical College, Guangzhou 510120, China, and ;the ¶Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109 |