Jian-Hua Mao earned his Bachelor degree in applied mathematics in 1986 from Southeast University and Master degree in biostatistics and cancer epidemiology in 1989 from Beijing Medical University. He received his PhD degree in cancer genetics in 1997 from the Department of Radiation Oncology, University of Glasgow, United Kingdom. He had post-doctoral training from 1997 to 1999 in the Department of Medical Oncology, University of Glasgow. Dr. Mao is a geneticist senior scientist in the Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory and an adjunct professor of Comparative Biochemistry Program, University of California Berkeley. His research interests include: (1) Identify the combinations of genes and their functional polymorphisms that affect the susceptibility to tumor development; (2) Discover genetic alterations in tumors using recently developed high throughput technologies, such as CGH microarray, SNP microarray, gene expression microarray, and next generation sequencing; (3) Study the functional and mechanistic role of genes in tumor development and progression, and cancer treatment using genetically engineered mouse models; (4) Investigate the roles of gut microbiome in disease development and treatment; and (5) Identify and validate the biomarkers for early diagnosis, prognosis and response sensitivity to therapies. Dr. Mao has authored more than 180 peer-reviewed publications including Nature, Science, Nat Genet, Cancer Cell, JCO, Gut, etc.