【Researches Brief】 composite region / fundamental biology / molecular biology 【the Professor's Brief Profile】 1970 graduated from School of Medicine, the Univ. of Tokyo 1970-73 clinical training at the Third Department of Internal Medicine, the Univ. of Tokyo Hospital 1973-76 the Instutute of Medical Science, the Lab. of Chemical Researches (Prof. Yoshito Kajiro) studied the gene expression regulation mechanism of E.Coli July, 1976 assistant researcher at the Ins. of Medical Science, the Lab.of Chemical Researches Sept., 1979 went to Rockfeller University, the U.S to study under Prof. Shusaburo Hanabusa, studied R N A tumor virus and cancer gene Sept., 1982 back in Japan, professor at the Lab of Cell Genetics, the Institute of Medical Science, the Univ. of Tokyo Dec., 1990 professor at the same institute studied cancer-related gene groups, protein kinase groups, epithelial growth factors and receptors