Immunohistochemical expression of cytokeratins and epithelial membrane protein 2 in nasopharyngeal carcinoma and its potential implications

Asian Pac J Cancer Prev. 2015;16(2):653-6. doi: 10.7314/apjcp.2015.16.2.653.

Abstract

Background: Nasopharyngeal carcinoma (NPC) is an aggressive disease and tends to involve surrounding tissues, and biomarkers for better management are yet to be identified.

Materials and methods: One hundred and fifty tissue samples with NPC diagnosis were were investigated using pan cytokeratin (CK) and epithelial membrane protein 2 (EMP2) antibodies.

Results: Immunohistochemical expression of CK was identified in 144/150 (96%) and of EMP2 in 120/150 (80%).

Conclusions: There is a high loss of EMP2 in NPC, especially high grade examples. Loss of CK expression is also linked to high grade NPC types.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Biomarkers, Tumor / metabolism*
  • Carcinoma
  • Female
  • Follow-Up Studies
  • Humans
  • Immunoenzyme Techniques
  • Keratins / metabolism*
  • Male
  • Membrane Glycoproteins / metabolism*
  • Middle Aged
  • Nasopharyngeal Carcinoma
  • Nasopharyngeal Neoplasms / metabolism*
  • Nasopharyngeal Neoplasms / pathology*
  • Neoplasm Grading
  • Prognosis
  • Retrospective Studies
  • Young Adult

Substances

  • Biomarkers, Tumor
  • EMP2 protein, human
  • Membrane Glycoproteins
  • Keratins