Medical News Today -- A newly discovered gene fusion is highly expressed in a subset of prostate cancers, according to a study by researchers at Weill Cornell Medical College. The findings, reported in the April 1 issue of Cancer Research, may lead to more accurate tests for prostate cancer. The gene fusion biomarker is also a different type of fusion than researchers have found in cancer previously and may represent an entirely new mechanism that cancer cells use to outgrow their healthy neighbors.