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J Clin Pathol 52:782-784 doi:10.1136/jcp.52.10.782

Association of HLA-DRB1 alleles with giant cell tumour of bone.

  1. S S Varanasi,
  2. N A Athanasou,
  3. I Briceno,
  4. S S Papiha,
  5. H K Datta
  1. Department of Clinical Biochemistry, Medical School, University of Newcastle, Newcastle upon Tyne, UK.

      Abstract

      AIM: To examine the possible influence of the MHC class II antigens alleles in the formation of the multinucleate aggressive giant cell tumour of bone. METHODS: HLA class II antigen alleles were investigated in eight white patients from north east England with confirmed diagnosis of giant cell tumour of bone. All had locally aggressive, immunophenotypically HLA-DR negative giant cell tumours. RESULTS: Five of the eight patients were found to be positive for HLA-DRB1*0801/3, the distribution of this allele in healthy white controls being quite low (2%). All but one of the patients possessing DRB1*080 also expressed DRB1*070. CONCLUSIONS: HLA-DRB1*080 is pre-dominant in patients with immunophenotypic HLA-DR negative giant cell tumour of bone; individuals with the genotype 070/080 are at particularly high risk of developing giant cell tumour of bone.