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A potent suppressor of endometrial cancer is revealed
Date:2/8/2010

Endometrial cancer is the most common cancer of the female reproductive tract, representing 6% of all cancers. There is currently no screening method or biomarker to indicate early presence of disease. "It is a very common malignancy that affects women of all ages" comments paper author Dr. Diego Castrillon. The cancer forms from the cells that grow along the inner lining of the uterus, which is called the endometrium, and usually it is diagnosed following patient reports of abnormal bleeding.

The normal endometrium is a dynamic place, providing a thick, highly vascularized environment ready to generate a placenta if it is implanted with an embryo. The dynamic and cyclic activity of the endometrium makes it very sensitive to signaling molecules. Early changes in a number of signaling proteins are known to contribute to endometrial cancer in some patients. A major research goal is to understand how signals create cancer cells and to identify places where intervention might shut down the signals that promote cancer cell survival and growth.

Researchers learn about cancer by creating genetic changes to signaling proteins in mice that reflect changes found in human cancer patients. Animal models are produced in this way to help understand how cancer cells form and progress. One challenge is to localize genetic changes to the environment of interest. In the case of endometrial cancer, researchers need to specifically modify only those cells that are in the endometrium, so that their data is not complicated by changes in other tissues.

In a new study published in Disease Models & Mechanisms (DMM), <http://dmm.biologists.org/>, scientists report a new genetic tool that can specifically alter gene expression in the endometrium. They use this approach to remove a signaling protein gene only in endometrial cells to determine its influence on endometrial cancer formation. They found that t
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Contact: Kristy Kain
kristy.kain@vanderbilt.edu
615-343-1298
The Company of Biologists
Source:Eurekalert

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