TNFAIP8 as a Predictor of Metastasis and a Novel Prognostic Biomarker in Patients With Epithelial Ovarian Cancer

Br J Cancer. 2013 Sep 17;109(6):1685-92. doi: 10.1038/bjc.2013.501. Epub 2013 Aug 27.

Abstract

Background: Tumour necrosis factor-α-induced protein 8 (TNFAIP8) has been recently documented in various malignancies, but its role in epithelial ovarian cancer (EOC) remains unknown.

Methods: Tumour necrosis factor-α-induced protein 8 expression was determined by real-time reverse transcription PCR and western blot analysis. Tumour tissues, consisting of serous, mucinous, endometrioid and clear cell histotypes, from 202 EOC patients (International Federation of Gynecologists and Obstetricians I-IV) who underwent primary cytoreduction were collected. Then, we examined the immunohistochemical expression of TNFAIP8 and evaluated its clinical significances.

Results: Tumour necrosis factor-α-induced protein 8 overexpression was significantly associated with high histologic grade (P=0.005), large residual tumour size (P=0.014), recurrence (P=0.024) and response to chemotherapy (P<0.001). Multivariate analysis showed that TNFAIP8 overexpression was independently correlated with the presence of lymph node (odds ratio (OR): 4.129; 95% confidence interval (CI): 1.491-11.435; P=0.006) and intraperitoneal metastasis (OR: 2.209; 95% CI: 1.174-4.156; P=0.014). Moreover, results revealed that the status of TNFAIP8 expression was an independently prognostic factor for both cancer-specific survival (hazard ratio (HR): 1.852; 95% CI: 1.322-2.594; P<0.001) and disease-free survival (HR: 1.724; 95% CI: 1.235-2.407; P=0.001) in patients with EOC.

Conclusion: The present data provide evidence that TNFAIP8 predicts EOC metastasis and poor survival, highlighting its potential function as a therapeutic target for EOCs.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Apoptosis Regulatory Proteins / biosynthesis*
  • Apoptosis Regulatory Proteins / genetics
  • Biomarkers, Tumor / biosynthesis*
  • Biomarkers, Tumor / genetics
  • Carcinoma, Ovarian Epithelial
  • Female
  • Humans
  • Immunohistochemistry
  • Middle Aged
  • Neoplasm Metastasis
  • Neoplasms, Glandular and Epithelial / genetics
  • Neoplasms, Glandular and Epithelial / metabolism*
  • Ovarian Neoplasms / genetics
  • Ovarian Neoplasms / metabolism*
  • Prognosis

Substances

  • Apoptosis Regulatory Proteins
  • Biomarkers, Tumor
  • TNFAIP8 protein, human