Myles Brown, Dana-Farber Cancer Institute (image) Dana-Farber Cancer Institute Caption Myles Brown, MD, and colleagues at Dana-Farber Cancer Institute have discovered a molecular switch that enables advanced prostate cancers to spread without stimulation by male hormones, which normally are needed to spur the cancer's growth. The previously unknown protein function could serve as a treatment target for prostate cancers that are no longer controlled by hormone-blocking drugs, according to the researchers. Credit Sam Ogden Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.