Interference with T cell receptor-HLA-DR interactions by Epstein-Barr virus gp42 results in reduced T helper cell recognition

Maaike E. Ressing, Daphne Van Leeuwen, Frank A.W. Verreck, Raquel Gomez, Bianca Heemskerk, Mireille Toebes, Maureen M. Mullen, Theodore S. Jardetzky, Richard Longnecker, Marco W. Schilham, Tom H.M. Ottenhoff, Jacques Neefjes, Ton N. Schumacher, Lindsey M. Hutt-Fletcher, Emmanuel J.H.J. Wiertz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

Epstein-Barr virus (EBV) persists lifelong in infected hosts despite the presence of antiviral immunity. Many viral antigens are expressed during lytic infection. Thus, for EBV to spread, it must have evolved effective ways to evade immune recognition. Here, we report that HLA class II-restricted antigen presentation to T helper cells is hampered in the presence of the lytic-phase protein gp42. This interference with T cell activation involves association of gp42 with class II peptide complexes. Using HLA-DR tetramers, we identify a block in T cell receptor (TCR)-class II interactions imposed by gp42 as the underlying mechanism. EBV gp42 sterically clashes with TCR Vα-domains as visualized by superimposing the crystal structures for gp42-HLA-DR1 and TCR-MHC class II complexes. Blocking TCR recognition provides a previously undescribed strategy for viral immune evasion.

Original languageEnglish (US)
Pages (from-to)11583-11588
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume100
Issue number20
DOIs
StatePublished - Sep 30 2003

ASJC Scopus subject areas

  • General

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