The hormone estrogen plays many critical roles in men and women, in both healthy tissues and in cancer. In breast and gynecologic cancers, estrogen sends signals to tumors instructing the cancer cells to grow out of control. In recent years, studies have shed light on the growth-promoting role of estrogen in breast cancer. In endometrial cancer, which arises in the lining of the uterus, estrogen is known to play a critical role in tumor development, yet many insights from how it affects breast cancer do not apply to endometrial cancer. New research, published today in the journal Cancer Research, outlines findings scientists hope will advance our understanding of endometrial cancer and lead to more effective treatments.
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