 The TMPRSS2-ERG gene fusion is found in approximately half of all prostate cancers.     ///    "Based on a historical watchful waiting cohort, an association between TMPRSS2-ERG, evaluated as positive immune staining, and shorter survival of prostate cancer patients was identified. "    ///    TMPRSS2-ERG expression predicts prostate cancer survival and associates with stromal biomarkers..     ///    "The functional and prognostic significance of TMPRSS2-ERG is, however, not fully understood. "    ///    "Novel associations between TMPRSS2-ERG and alterations in the tumor stroma, for example, increased vascular density, hyaluronan and PDGFR? and decreased Caveolin-1, all known to be associated with an aggressive disease, were found. "