Weill Cornell Medical College -- NEW YORK (July 23, 2009) — Researchers from NewYork-Presbyterian Hospital/Weill Cornell Medical Center have discovered a new gene fusion that is highly expressed in a subset of prostate cancers. The results may lead to more accurate prostate cancer testing and new targets for potential treatments. Experts believe that gene fusions — a hybrid gene formed from two previously separated genes — may be at the root of what causes cancer cells to grow more quickly than normal cells.