Identification of HLA-DRB1-bound self-peptides following measles virus infection

Inna G. Ovsyannikova, Kenneth L. Johnson, Stephen Naylor, Gregory A. Poland

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

We developed a B-lymphocyte cell line derived from a measles seropositive individual who was homozygous for the HLA-DRB1*0301 allele. Peptides associated with the HLA-DRB1*0301 protein were purified from this lymphoblastoid cell line after infection with the Attenuvax™ measles vaccine virus (Merck Research Laboratories, West Point, PA) and with "sham" infection. More than 40 peptide sequences were obtained by nano-scale reversed phase-high performance liquid chromatography coupled to tandem mass spectrometry (nano-LC/MS/MS). These peptides originated from 21 different source proteins-the majority from membrane-bound proteins. Most of the peptides (>73%) bound to HLA-DRB1*0301 appeared to be in lower abundance on measles-infected cells compared to the "sham-infected" cells. However, 26% of the identified peptides seem to have increased expression after measles infection. Measles vaccine virus infection did not change the level of HLA-DR expression. We demonstrate the power of nano-LC/MS/MS in the rapid determination of changes in the spectrum and expression of HLA-DRB1*0301-bound peptides after infection with measles virus. This provides further knowledge of the changes in peptide expression after viral infection and provides a powerful tool for identifying HLA-presented host and viral epitopes in the context of class II HLA molecules.

Original languageEnglish (US)
Pages (from-to)153-167
Number of pages15
JournalJournal of Immunological Methods
Volume297
Issue number1-2
DOIs
StatePublished - Feb 2005

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Keywords

  • HLA-DRB1*03
  • Mass spectrometry
  • Measles virus
  • Self-peptides
  • Spectrum analysis

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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