title: Progestins suppress estrogen-induced expression of vascular endothelial growth factor (VEGF) subtypes in uterine endometrial cancer cells.
abstract: Vascular endothelial growth factor (VEGF) contributes to the early advancement of uterine endometrial cancers that conserve hormone dependency via angiogenic activity. This process prompted us to study sex steroidal suppression of VEGF expression in Ishikawa cells (a line of well-differentiated uterine endometrial cancer cells). Estrogen transiently induced VEGF subtype (VEGF165 and VEGF121) secretion from Ishikawa cells. Progestins (progesterone, medroxyprogesterone acetate (MPA) and 17 alpha-hydroxyprogesterone) suppressed the estrogen-induced events. In conclusion, progestins could suppress VEGF-related angiogenic potential, which contributes to tumor growth in the early stage of uterine endometrial cancers that conserve estrogen dependency.
authors.affiliation: Department of Obstetrics and Gynecology, Gifu University School of Medicine, Gifu City, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Fujimoto
authors.forename: H
authors.initials: H
authors.lastname: Sakaguchi
authors.forename: R
authors.initials: R
authors.lastname: Hirose
authors.forename: S
authors.initials: S
authors.lastname: Ichigo
authors.forename: T
authors.initials: T
authors.lastname: Tamaya
mesh_terms: D019326:17-alpha-Hydroxyprogesterone / Q000494:pharmacology; D015139:Blotting, Southern; D015153:Blotting, Western; D004305:Dose-Response Relationship, Drug; D016889:Endometrial Neoplasms / Q000378:metabolism* / Q000473:pathology; D016228:Endothelial Growth Factors / Q000096:biosynthesis*; D004958:Estradiol / Q000494:pharmacology*; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000494:pharmacology; D007124:Immunoenzyme Techniques; D008222:Lymphokines / Q000096:biosynthesis*; D017258:Medroxyprogesterone Acetate / Q000494:pharmacology; D011374:Progesterone / Q000494:pharmacology; D011372:Progestins / Q000494:pharmacology*; D020033:Protein Isoforms / Q000096:biosynthesis; D012333:RNA, Messenger / Q000096:biosynthesis; D020133:Reverse Transcriptase Polymerase Chain Reaction; D013760:Tetrahydrocortisol / Q000494:pharmacology; D013997:Time Factors; D014407:Tumor Cells, Cultured; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors
chemical_list: D016228:Endothelial Growth Factors; D008222:Lymphokines; D011372:Progestins; D020033:Protein Isoforms; D012333:RNA, Messenger; C467484:VEGFA protein, human; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors; D011374:Progesterone; D004958:Estradiol; D019326:17-alpha-Hydroxyprogesterone; D013760:Tetrahydrocortisol; D017258:Medroxyprogesterone Acetate; D006854:Hydrocortisone