Tumor Biology

, Volume 36, Issue 1, pp 453–458 | Cite as

Increased PTOV1 expression is related to poor prognosis in epithelial ovarian cancer

  • Fei Guo
  • Liu Feng
  • Ji-Long Hu
  • Mei-Ling Wang
  • Peng Luo
  • Xiao-Ming Zhong
  • An-Mei Deng
Research Article


Altered expression of prostate tumor overexpressed-1 (PTOV1) is observed in various types of human cancers. However, the role of PTOV1 in epithelial ovarian cancer (EOC) remains unclear. PTOV1 messenger (m)RNA expression in EOC patients was evaluated by quantitative real-time PCR (qRT-PCR). PTOV1 protein expression was also analyzed in archived paraffin-embedded EOC tissues using immunohistochemistry (IHC), and its association with overall survival of patients was analyzed by statistical analysis. Results from qRT-PCR analysis show that the expression level of PTOV1 mRNA was significantly higher in tumor tissues of EOC, compared to that in adjacent noncancerous tissues (P < 0.001). IHC staining showed that high expression of PTOV1 was detected in 57.2 % (87/152) of EOC cases. High expression of PTOV1 was significantly associated with pathological grade (P = 0.029) and clinical stage (P = 0.001). Moreover, the results of Kaplan-Meier analysis indicated that a high expression level of PTOV1 resulted in a significantly poor prognosis of EOC patients. Multivariate analysis showed that high expression of PTOV1 was an independent prognostic factor for overall survival (P < 0.001). In conclusion, PTOV1 protein abnormal expression might contribute to the malignant progression of EOC. High expression of PTOV1 predicts poor prognosis in patients with EOC.


PTOV1 EOC Biomarker Prognosis 



This research was supported by grant from 973 Foundation (2013CB531606).

Conflicts of interest



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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2014

Authors and Affiliations

  1. 1.Department of Gynecology and ObstetricsTianjin Medical University General HospitalTianjinChina
  2. 2.Department of OncologyNo. 3 People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
  3. 3.Department of Oncological SurgeryJiangxi Tumor HospitalNanchangChina
  4. 4.TopGen Diagnostics Co., LtdShanghaiChina
  5. 5.Department of Tumor Radiotherapy and ChemotherapyJiangxi Tumor HospitalNanchangChina
  6. 6.Department of Laboratory DiagnosisChanghai Hospital Affiliated to the Second Military Medical UniversityShanghaiChina

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