Epstein-Barr Virus Entry Utilizing HLA-DP or HLA-DQ as a Coreceptor

Author:

Haan Keith M.1,Kwok William W.2,Longnecker Richard1,Speck Peter1

Affiliation:

1. Department of Microbiology-Immunology, Northwestern University Medical School, Chicago, Illinois 60611,1 and

2. Virginia Mason Research Center, Seattle, Washington 981012

Abstract

ABSTRACT Epstein-Barr virus (EBV) glycoprotein gp350/gp220 association with cellular CD21 facilitates virion attachment to B lymphocytes. Membrane fusion requires the additional interaction between virion gp42 and cellular HLA-DR. This binding is thought to catalyze membrane fusion through a further association with the gp85-gp25 (gH-gL) complex. Cell lines expressing CD21 but lacking expression of HLA class II molecules are resistant to infection by a recombinant EBV expressing enhanced green fluorescent protein. Surface expression of HLA-DR, HLA-DP, or HLA-DQ confers susceptibility to EBV infection on resistant cells that express CD21. Therefore, HLA-DP or HLA-DQ can substitute for HLA-DR and serve as a coreceptor in EBV entry.

Publisher

American Society for Microbiology

Subject

Virology,Insect Science,Immunology,Microbiology

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