PMID: 9443020Jan 1, 1997Paper

Antiestrogenic compounds inhibit estrogen-induced expression of fibroblast growth factor family (FGF-1, 2, and 4) mRNA in well-differentiated endometrial cancer cells

European Journal of Gynaecological Oncology
J FujimotoT Tamaya

Abstract

To clarify the effect of sex steroids on neovascularization in the growth, invasion and metastasis of endometrial cancer, the regulations of acid fibroblast growth factor (FGF-1), basic FGF (FGF-2) and hst-1 (FGF-4) mRNA expressions were studied in well-differentiated endometrial cancer cells under the influence of sex steroids. The levels of FGF-1 and 2 mRNAs in the well-differentiated endometrial cancer (Ishikawa) cells were significantly increased by estradiol. This increase was significantly inhibited by progestins (progesterone, medroxyprogesterone acetate [MPA] and 17 alpha-hydroxyprogesterone) and tamoxifen, but not by tetrahydrocortisol, hydrocortisone and danazol. The expression of FGF-4 mRNA was not altered by sex steroids. Therefore, estrogen might stimulate FGF-2 with FGF-1 secretion of endometrial cancer cells for neovascularization, and antiestrogenic compounds do inhibit estrogen-induced events.

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