Synthesis and biological evaluation of stilbene-based pure estrogen antagonists
摘要:
Replacement of one of the ethyl substituents in diethylstilbestrol by side chains with functional groups converted this potent estrogen into pure antiestrogens with the potential for the treatment of breast cancer. These agents completely suppressed estrogen receptor-mediated gene activation and inhibited the growth of estrogen-sensitive MCF-7 breast cancer cells in submicromolar concentrations. The most potent derivative displayed similar activity as fulvestrant (ICI 182,780) in vitro and in the mouse uterine weight test. Obviously, the stilbene structure can act as a substitute for estradiol in the development of pure estrogen antagonists. (C) 2004 Elsevier Ltd. All rights reserved.
Stilbene-Based Inhibitors of Estrone Sulfatase with a Dual Mode of Action in Human Breast Cancer Cells
作者:Georg Walter、Renate Liebl、Erwin von Angerer
DOI:10.1002/ardp.200400904
日期:2004.12
evaluated as inhibitors of estrone sulfatase. They inhibited this enzyme in human MDA‐MB 231 breast cancer cells, with IC50 values in the submicromolar range. The effects of both the free hydroxy derivatives and the sulfamates on gene activation were determined in transfected MCF‐7/2a breast cancer cells stimulated either with estradiol or with estrone sulfate. The analysis of data revealed a dualmode of action
Synthesis and biological evaluation of stilbene-based pure estrogen antagonists
作者:Georg Walter、Renate Liebl、Erwin von Angerer
DOI:10.1016/j.bmcl.2004.06.098
日期:2004.9
Replacement of one of the ethyl substituents in diethylstilbestrol by side chains with functional groups converted this potent estrogen into pure antiestrogens with the potential for the treatment of breast cancer. These agents completely suppressed estrogen receptor-mediated gene activation and inhibited the growth of estrogen-sensitive MCF-7 breast cancer cells in submicromolar concentrations. The most potent derivative displayed similar activity as fulvestrant (ICI 182,780) in vitro and in the mouse uterine weight test. Obviously, the stilbene structure can act as a substitute for estradiol in the development of pure estrogen antagonists. (C) 2004 Elsevier Ltd. All rights reserved.