Expression of podoplanin and prognosis in oropharyngeal cancer

Eur Arch Otorhinolaryngol. 2015 Jul;272(7):1749-54. doi: 10.1007/s00405-014-3105-4. Epub 2014 Jun 1.

Abstract

It has been shown that podoplanin expression is associated with carcinoma of the aerodigestive tract. Recent studies indicate that podoplanin may serve as a prognostic biomarker in oral carcinoma. In order to provide evidence on the role of podoplanin in oropharyngeal squamous cell carcinoma, we evaluated the prognostic impact of podoplanin in these patients. We analyzed formalin-fixed tissue samples from 107 consecutive patients with oropharyngeal squamous cell carcinoma. HPV typing and immunohistochemical staining for both p16 and podoplanin were performed. Expression of podoplanin was seen in 38.3% of all cases. We found no correlation of the podoplanin scores with either p16 expression or with HPV status. There was no significant correlation of podoplanin expression with the staging variables T, N, M, and tumor grading. Podoplanin expression did neither influence the 5-year overall survival nor the 5-year disease-free survival. Concluding, we could not find a prognostic role of podoplanin expression neither in the HPV-positive cases nor in the HPV-negative cases. It appears that podoplanin is not expressed as often in oropharyngeal cancer compared to oral cancer. We could not show any relation of lymph node metastases and podoplanin expression in this homogenous cohort of tumors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Biomarkers
  • Carcinoma, Squamous Cell* / metabolism
  • Carcinoma, Squamous Cell* / pathology
  • Disease-Free Survival
  • Female
  • Humans
  • Lymphatic Metastasis
  • Male
  • Membrane Glycoproteins / metabolism*
  • Middle Aged
  • Mouth Neoplasms* / metabolism
  • Mouth Neoplasms* / pathology
  • Neoplasm Grading
  • Neoplasm Staging
  • Oropharyngeal Neoplasms* / metabolism
  • Oropharyngeal Neoplasms* / pathology
  • Papillomaviridae / isolation & purification
  • Prognosis

Substances

  • Biomarkers
  • Membrane Glycoproteins
  • PDPN protein, human