Epstein-Barr virus associated modulation of Wnt pathway is not dependent on latent membrane protein-1

PLoS One. 2008 Sep 22;3(9):e3254. doi: 10.1371/journal.pone.0003254.

Abstract

Previous studies have indicated that Epstein-Barr virus (EBV) can modulate the Wnt pathway in virus-infected cells and this effect is mediated by EBV-encoded oncogene latent membrane protein 1 (LMP1). Here we have reassessed the role of LMP1 in regulating the expression of various mediators of the canonical Wnt cascade. Contradicting the previous finding, we found that the levels of E-cadherin, beta-catenin, Glycogen Synthase Kinase 3ss (GSK3beta), axin and alpha-catenin were not affected by the expression of LMP1 sequences from normal B cells or nasopharyngeal carcinoma. Moreover, we also show that LMP1 expression had no detectable effect on the E-cadherin and beta-catenin interaction and did not induce transcriptional activation of beta-catenin. Taken together these studies demonstrate that EBV-mediated activation of Wnt pathway is not dependent on the expression of LMP1.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cadherins / metabolism
  • Cell Membrane / metabolism
  • Dogs
  • Gene Expression Regulation, Neoplastic*
  • Gene Expression Regulation, Viral*
  • Glycogen Synthase Kinase 3 / metabolism
  • Glycogen Synthase Kinase 3 beta
  • Herpesvirus 4, Human / metabolism*
  • Humans
  • Models, Biological
  • Transcriptional Activation
  • Viral Matrix Proteins / metabolism*
  • Wnt Proteins / metabolism*
  • alpha Catenin / metabolism
  • beta Catenin / metabolism

Substances

  • Cadherins
  • EBV-associated membrane antigen, Epstein-Barr virus
  • Viral Matrix Proteins
  • Wnt Proteins
  • alpha Catenin
  • beta Catenin
  • GSK3B protein, human
  • Glycogen Synthase Kinase 3 beta
  • Glycogen Synthase Kinase 3