Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered a molecule, KLF15 (see structure) that inhibits the action of estrogen. This female hormone plays a key role in the growth, maintenance and repair of reproductive tissues and fuels the development of endometrial and breast cancers. The molecule, discovered in animal studies, could lead to new therapies for preventing and treating estrogen-related diseases in humans.
In studies involving rodents, Dr. Pollard discovered that a molecule called KLF15 (Kruppel-like transcription factor-15) controls the actions of estradiol and progesterone in the endometrium by inhibiting the production MCM2, a protein involved in DNA synthesis.
"Our findings raise the possibility that it may be possible to prevent or treat endometrial and breast cancer and other diseases related to estrogen by promoting the action of KLF15," said Dr. Pollard.
The paper, titled "KLF15 negatively regulates estrogen-induced epithelial cell proliferation by inhibition of DNA replication licensing," is coauthored by Sanhita Ray, Ph.D., a postdoctoral fellow at Einstein.
Molecule Found That Inhibits Estrogen, Key Risk Factor for Endometrial and Breast Cancers
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