HPV Infection, but Not EBV or HHV-8 Infection, Is Associated with Salivary Gland Tumours

Biomed Res Int. 2015:2015:829349. doi: 10.1155/2015/829349. Epub 2015 Nov 5.

Abstract

Benign and malignant salivary gland tumours are clinically heterogeneous and show different histology. Little is known about the role of human herpes virus 8 (HHV-8), Epstein-Barr virus (EBV), and human papillomavirus (HPV) infection in salivary gland neoplasms. We investigated the presence of the three viruses in formalin-fixed, paraffin-embedded tissue samples in a cohort of 200 different salivary gland tumours. We performed EBV-LMP-1 and HHV-8 and p16 immunohistochemistry, a specific chip based hybridization assay for detection and typing of HPV and a chromogenic in situ hybridization for EBV analysis. Only one case, a polymorphic low-grade carcinoma, showed HHV-8 expression and one lymphoepithelial carcinoma was infected by EBV. In 17 cases (9%) moderate or strong nuclear and cytoplasmic p16 expression was detected. The HPV type was investigated in all of these cases and additionally in 8 Warthin's tumours. In 19 cases HPV type 16 was detected, mostly in Warthin's tumour, adenoid cystic carcinoma, and adenocarcinoma NOS. We concluded that HHV-8 infection and EBV infection are not associated with salivary gland cancer, but HPV infection may play a role in these tumour entities.

MeSH terms

  • Adenolymphoma / virology
  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Child
  • DNA, Viral / genetics
  • Epstein-Barr Virus Infections / complications*
  • Epstein-Barr Virus Infections / virology
  • Female
  • Herpesviridae Infections / complications*
  • Herpesviridae Infections / virology
  • Herpesvirus 4, Human / pathogenicity
  • Herpesvirus 8, Human / pathogenicity
  • Humans
  • Male
  • Middle Aged
  • Papillomaviridae / pathogenicity*
  • Papillomavirus Infections / complications*
  • Papillomavirus Infections / virology
  • Salivary Gland Neoplasms / etiology*
  • Salivary Gland Neoplasms / virology*
  • Salivary Glands / virology*
  • Young Adult

Substances

  • DNA, Viral