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Impact of HLA class I and class II high-resolution matching on outcomes of unrelated donor bone marrow transplantation: HLA-C mismatching is associated with a strong adverse effect on transplantation outcome

Open access
Flomenberg, N.·2004·Blood

Abstract

Outcome of unrelated donor marrow transplantation is influenced by donor-recipient matching for HLA. Prior studies assessing the effects of mismatches at specific HLA loci have yielded conflicting results. The importance of high-resolution matching for all HLA loci has also not been established. We therefore examined the effects of HLA matching (low or high resolution or both) on engraftment, graft-versus-host disease (GVHD), and mortality in 1874 donor-recipient pairs retrospectively typed at high resolution for HLA-A, -B, -C, -DRB1, -DQ, and -DP. Mismatches at HLA-A, -B, -C, and -DRB1 each had similar adverse effects on mortality. Only HLA-A mismatches demonstrated significant adverse effects on GVHD. These adverse effects on outcome were more evident in transplants with low-resolution versus only high-resolution mismatches. Mismatches for HLA-DQ or -DP did not significantly affect outcome. When high-resolution mismatches at HLA-A, -B, -C, and -DRB1 were considered together, adverse effects on survival and GVHD were observed. We therefore conclude that matching for HLA-C should be incorporated into algorithms for unrelated donor selection. High-resolution mismatches at HLA-A, -B, -C, and -DRB1 adversely affect outcome, but less so than low-resolution mismatches. When clinical circumstances allow, high-resolution class I typing may help optimize donor selection and improve outcome.

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Metadata

Authors
Flomenberg, N.
Venue
Blood
Published
2004-10-01
Volume
104
Issue
7
Pages
1923-1930
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2135240885
Cited by
698
References
35
FWCI
24.35
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Impact of HLA class I and class II high-resolution matching on outcomes of unrelated donor bone marrow transplantation: HLA-C mismatching is associated with a strong adverse effect on transplantation outcome. https://app.cochat.ai/papers/10.1182/blood-2004-03-0803
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Flomenberg, N. (2004). Impact of HLA class I and class II high-resolution matching on outcomes of unrelated donor bone marrow transplantation: HLA-C mismatching is associated with a strong adverse effect on transplantation outcome. Blood. https://doi.org/10.1182/blood-2004-03-0803

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.