How does the estrogen receptor work?
- PMID: 11879565
- PMCID: PMC138721
- DOI: 10.1186/bcr424
How does the estrogen receptor work?
Abstract
In breast cancer, interruption of estrogen receptor (ER)-alpha function is an effective therapeutic strategy. Despite the clinical benefit of interruption of ER-alpha function, the precise biological action of ER-alpha in breast tumors is not completely understood. Results of a recent study show that ER-alpha promotes growth of breast cancer cells by targeting expression of signaling components of the insulin-like growth factor system. Intriguingly, the authors of this study raise the possibility that unliganded ER-alpha itself may affect gene expression and breast cancer biology, and they suggest a potential mechanism for ER-alpha to stimulate proliferation in breast cancer.
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