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Research Article Free access | 10.1172/JCI118753

Acute graft versus host disease due to T lymphocytes recognizing a single HLA-DPB1*0501 mismatch.

J Gaschet, A Lim, L Liem, R Vivien, M M Hallet, J L Harousseau, J Even, E Goulmy, M Bonneville, N Milpied, and H Vié

Insitut National de la Santé et de Recherche Médicale, Plateau Technique du CHR, Mantes, France.

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Insitut National de la Santé et de Recherche Médicale, Plateau Technique du CHR, Mantes, France.

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Insitut National de la Santé et de Recherche Médicale, Plateau Technique du CHR, Mantes, France.

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Insitut National de la Santé et de Recherche Médicale, Plateau Technique du CHR, Mantes, France.

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Insitut National de la Santé et de Recherche Médicale, Plateau Technique du CHR, Mantes, France.

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Insitut National de la Santé et de Recherche Médicale, Plateau Technique du CHR, Mantes, France.

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Insitut National de la Santé et de Recherche Médicale, Plateau Technique du CHR, Mantes, France.

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Insitut National de la Santé et de Recherche Médicale, Plateau Technique du CHR, Mantes, France.

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Insitut National de la Santé et de Recherche Médicale, Plateau Technique du CHR, Mantes, France.

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Published July 1, 1996 - More info

Published in Volume 98, Issue 1 on July 1, 1996
J Clin Invest. 1996;98(1):100–107. https://doi.org/10.1172/JCI118753.
© 1996 The American Society for Clinical Investigation
Published July 1, 1996 - Version history
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Abstract

Analysis of a large number of unrelated bone marrow transplantations (BMT) has shown that HLA-DP incompatibility did not detectably influence the risk for acute graft-versus-host disease (aGVHD). Accordingly, it was proposed that HLA-DP determinants did not function as transplantation antigens in the same way as HLA-A, -B, or -DR. We have previously shown that HLA-DP (as well as HLA-A, -B, -DQ, or -DR)-specific T cells could be isolated from skin biopsies of patients who developed an aGVHD after semiallogeneic BMT. Nevertheless, whether a single HLA-DP mismatched allele could induce a detectable allo-specific reaction in vivo after BMT remained to be established. To directly address this issue we studied one patient who presented aGVHD after receiving purified CD34+ bone marrow (BM) cells from an unrelated donor with a single HLA-DP mismatch in the GVHD direction. To characterize the immunological events associated with GVHD, we analyzed the peripheral T cell repertoire, the T cell receptor Vbeta diversity, and the specificity of T cells invading a skin biopsy at the onset of GVHD. Our results demonstrated that a large fraction of skin-infiltrating lymphocytes, which expressed diverse T cell receptors, were reactive against this single HLA-DPB1 *0501 mismatch and consequently that a single HLA-DP mismatch between BM donor and recipient can activate a strong T cell response in vivo.

Version history
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