Effects of Inhibiting the Proteasomal Degradation of Estrogen Receptor .ALPHA. on Estrogen Receptor .ALPHA. Activation under Hypoxic Conditions
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منابع مشابه
Overexpression of Endometrial Estrogen Receptor-Alpha in The Window of Implantation in Women with Unexplained Infertility
Objective Background: Failure in the endometrial receptivity may account for a significant number of infertility cases including unexplained infertility in women. Reduction in the endometrial estrogen receptor-alpha (ER-α) expression during window of implantation may be a critical event that coincides with expression of specific genes and providing a receptive endometrium. The aim of present st...
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Background: Use of hormone replacement therapy (HRT) may increase the risk of adult-onset asthma in women. Various in vitro studies have reported that estradiol stimulates human mast cell lines causing release of allergic mediators which was not observed in estrogen receptor-alpha (ER-alpha) knockout mice. Thus, estrogen might be a key element in occurrence of asthma. In the present study, we p...
متن کاملThe aryl hydrocarbon receptor mediates degradation of estrogen receptor alpha through activation of proteasomes.
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and other aryl hydrocarbon receptor (AhR) ligands suppress 17beta-estradiol (E)-induced responses in the rodent uterus and mammary tumors and in human breast cancer cells. Treatment of ZR-75, T47D, and MCF-7 human breast cancer cells with TCDD induces proteasome-dependent degradation of endogenous estrogen receptor alpha (ERalpha). The proteasome inhib...
متن کاملEstrogen receptor alpha mediates the nongenomic activation of endothelial nitric oxide synthase by estrogen.
Estrogen is an important vasoprotective molecule that causes the rapid dilation of blood vessels by activating endothelial nitric oxide synthase (eNOS) through an unknown mechanism. In studies of intact ovine endothelial cells, 17beta-estradiol (E2) caused acute (five-minute) activation of eNOS that was unaffected by actinomycin D but was fully inhibited by concomitant acute treatment with spec...
متن کاملpromoter hypermethylation of estrogen receptor alpha gene is correlated to estrogen receptor negativity in iranian patients with sporadic breast cancer
objective: breast cancer is the most common cancer in iranian women. breast tumors are classified based on the estrogen receptor alpha (erα) expression status into er negative and er positive tumors. er negative tumors tend to have worse prognosis and less likely to respond to endocrine therapy. aberrant methylation of gene promoter is one of the mechanisms for gene silencing in breast tumors. ...
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ژورنال
عنوان ژورنال: Biological and Pharmaceutical Bulletin
سال: 2009
ISSN: 0918-6158,1347-5215
DOI: 10.1248/bpb.32.2057