title: Role of inhibitor of DNA binding-1 protein is related to angiogenesis in the tumor advancement of uterine endometrial cancers.
abstract: The inhibitor of DNA binding (ID)-1 protein, an inhibitor of basic helix-loop-helix transcription factors, has been found to be involved in multiple cellular functions. In the present study, ID-1 histoscores and mRNA levels were both significantly (p<0.05) increased in uterine endometrial cancers according to clinical stage, histological grade and depth of myometrial invasion. Furthermore, the 60-month survival rate of the 25 patients with high ID-1 was poor (52%), while that of the other 25 patients with low ID-1 was significantly higher (80%) (p<0.05). ID-1 histoscores and mRNA levels significantly (p<0.0001) correlated with microvessel counts in uterine endometrial cancers. Therefore, ID-1 acts on tumor advancement via angiogenic activity and can be considered a candidate prognostic indicator in uterine endometrial cancers.
authors.affiliation: Department of Obstetrics and Gynecology, Graduate School of Medicine, Gifu University School of Medicine, Gifu 501-1194,  Japan.
authors.forename: Min Khine
authors.initials: MK
authors.lastname: Maw
authors.forename: Jiro
authors.initials: J
authors.lastname: Fujimoto
authors.forename: Teruhiko
authors.initials: T
authors.lastname: Tamaya