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The Journal of Immunology, Vol 145, Issue 1 136-139, Copyright © 1990 by American Association of Immunologists
ARTICLES |
KE Lundin, LM Sollid, E Qvigstad, G Markussen, HA Gjertsen, J Ek and E Thorsby
Institute of Transplantation Immunology, National Hospital, Oslo, Norway.
The HLA-associated susceptibility to develop celiac disease may to a large extent be attributed to the combination of particular DQA1 and DQB1 genes, i.e., the DQA1*0501 and DBQB1*0201 alleles, located either in cis position (on the DR3DQw2 haplotype) or in trans position (DR5DQw7/DR7DQw2 heterozygous individuals). We report three alloreactive T lymphocyte clones that recognize an HLA-DQ alpha/beta heterodimer both when the DQA1*0501 and DQB1*0201 alleles are located in cis or in trans position. Thus, the celiac disease associated DQA1 and DQB1 genes encode a functionally expressed DQ alpha/beta heterodimer.
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