TY - JOUR T1 - HSP60 Predicts Survival in Advanced Serous Ovarian Cancer JF - International Journal of Gynecologic Cancer JO - Int J Gynecol Cancer SP - 448 LP - 455 DO - 10.1097/IGC.0b013e318284308b VL - 23 IS - 3 AU - Elisabet Hjerpe AU - Suzanne Egyhazi AU - Joseph Carlson AU - Marianne Frostvik Stolt AU - Kjell Schedvins AU - Hemming Johansson AU - Maria Shoshan AU - Elisabeth Åvall-Lundqvist Y1 - 2013/03/01 UR - http://ijgc.bmj.com/content/23/3/448.abstract N2 - Objective Heat shock protein 60 (HSP60) plays an essential role in malignant cell survival. We evaluated the prognostic and treatment predictive value of HSP60 in advanced ovarian cancer.Methods Fresh tumor samples were prospectively collected from 123 patients undergoing primary surgery for suspected advanced ovarian cancer. Of these, 57 fulfilled the eligibility criteria, that is, International Federation of Gynecology and Obstetrics stage IIC-IV, serous/endometrioid tumors, platinum-based chemotherapy, and specimens with 50% tumor cells or greater. Heat shock protein 60 mRNA and protein expression was determined by real-time polymerase chain reaction and immunohistochemistry. We estimated the association between HSP60 and overall survival (OS) and platinum-free interval (PFI) by Cox proportional hazards models and its relationship with treatment response by Fisher’s exact test. Median follow-up was 60 months.Results High HSP60 mRNA expression was associated with shorter OS (hazard ratio [HR], 3.4; 95% confidence interval [CI], 1.3–8.5) and PFI (HR, 3.3; 95% CI, 1.5–7.2). Likewise, high HSP60 protein expression was associated with shorter OS (HR, 3.2; 95% CI, 1.5–7.1) and PFI (HR, 2.6; 95% CI, 1.3–5.3). Median survival for patients with high HSP60 protein expression was 31 months compared with 55 months for low expression cases (P = 0.016). The impact on OS and PFI was even stronger in the subgroup of grade 3 serous tumors. All patients with low HSP60 levels responded to first-line chemotherapy.Conclusion Heat shock protein 60 may identify groups of advanced serous ovarian cancer with different prognosis and treatment response. ER -