Dr. Dunfa Peng is a research assistant professor at the Department of Surgery, Miller School of Medicine, University of Miami. He received his MD degree from Wannan Medical College in 1987, his MS degree from Zhejiang University in 1992, and his Ph.D. degree from Shiga University of Medical Science Japan in 2003. He practiced for two years as a surgeon and for many years as a pathologist in China. He has been involved in research on tumors of the gastrointestinal tract and digestive system for more than 20 years in China, Japan, and the USA. His goal is to understand the molecular mechanisms underlying tumorigenesis and find novel therapeutic strategies to treat them.