CSAG2 and ovarian cancer: Recently, CSAG2, also known as the taxol resistance associated gene 3 (TRAG-3), has been identified to be overexpressed in a paclitaxel-resistant ovarian cancer cell line and also be a prognostic factor for predicting clinical outcome after paclitaxel-based chemotherapy (Lage and Denkert, 2007; Materna et al., 2007).