He received his M.D. at Qingdao Medical School, Shandong, P.R. China in 1986 and his Ph.D. in Immunology at University of Western Ontario, Canada on 1994. He did his postdoctoral training at the Department of Immunology, University of Toronto, Canada from 1995-1996, and at Harvard Medical School from 1996-1998. Since then, he became Instructor of Medicine in 1998 and Assistant professor in 2000. His focus is on the mechanisms that enable the acquisition of transplantation tolerance. He won several awards due to his research work, and published over 40 peer-reviewed papers.