Elucidation of the molecular mechanisms and prognostic perspectives for ovarian cancer induced by iron overload due to endometriosis

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Previous reports indicated that ovarian endometrioid and clear cell adenocarcinoma develop in association with oxidative stress due to excess of iron deposit. In this term, we performed array CGH analysis to find Met gene amplification in a certain proportion of ovarian clear cell adenocarcinoma samples correlated with worse prognosis (Yamashita et al. PLoS One 2013). Expression of CBX7, which is known to collaborate with the ANRIL gene reported to be associated with endometriosis, also had relationship with worse prognosis of the patients (Shinjo K, Yamashita Y et al. Int J Cancer 2014). We also analyzed the role of ectopic stromal cells in endometriotic cysts (Kobayashi H, Yamashita Y et al Fertil Steril 2012).