HLA-A*02 is associated with a reduced risk and HLA-A*01 with an increased risk of developing EBV+ Hodgkin lymphoma

Blood. 2007 Nov 1;110(9):3310-5. doi: 10.1182/blood-2007-05-086934. Epub 2007 Jul 13.

Abstract

Previous studies showed that the HLA class I region is associated with Epstein-Barr virus (EBV)-positive Hodgkin lymphoma (HL) and that HLA-A is the most likely candidate gene in this region. This suggests that antigenic presentation of EBV-derived peptides in the context of HLA-A is involved in the pathogenesis of EBV+ HL by precluding efficient immune responses. We genotyped exons 2 and 3, encoding the peptide-binding groove of HLA-A, for 32 single nucleotide polymorphisms in 70 patients with EBV+ HL, 31 patients with EBV- HL, and 59 control participants. HLA-A*01 was significantly overrepresented and HLA-A*02 was significantly underrepresented in patients with EBV+ HL versus controls and patients with EBV- HL. In addition, HLA-A*02 status was determined by immunohistochemistry or HLA-A*02-specific polymerase chain reaction (PCR) on 152 patients with EBV+ HL and 322 patients with EBV- HL. The percentage of HLA-A*02+ patients in the EBV+ HL group (35.5%) was significantly lower than in 6107 general control participants (53.0%) and the EBV- HL group (50.9%). Our results indicate that individuals carrying the HLA-A*02 allele have a reduced risk of developing EBV+ HL, while individuals carrying the HLA-A*01 allele have an increased risk. It is known that HLA-A*02 can present EBV-derived peptides and can evoke an effective immune response, which may explain the protective phenotype.

Publication types

  • Multicenter Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Epstein-Barr Virus Infections / complications
  • Epstein-Barr Virus Infections / genetics*
  • Female
  • Genetic Predisposition to Disease
  • HLA-A Antigens / genetics*
  • HLA-A1 Antigen
  • HLA-A2 Antigen
  • Haplotypes
  • Hodgkin Disease / complications
  • Hodgkin Disease / genetics*
  • Hodgkin Disease / virology
  • Humans
  • Male
  • Middle Aged
  • Polymorphism, Single Nucleotide
  • Risk Factors

Substances

  • HLA-A Antigens
  • HLA-A*02 antigen
  • HLA-A1 Antigen
  • HLA-A2 Antigen