The recent cloning of the gene responsible for multiple endocrine neoplasia
type 1 (Men 1) has opened new avenues for both clinical and basic science
research in the field of endocrine oncology. A large amount of genetic info
rmation, particularly those in relation to germline and somatic mutations,
has since been published during the last 2 years. This new knowledge has pr
ovided important insights into its gene function. The significance of these
advances in relation to clinical management and future directions for rese
arch is discussed.