Article ID Journal Published Year Pages File Type
8463963 Cellular Immunology 2012 8 Pages PDF
Abstract
► HLA-B locus was selectively down-regulated in post-transplant leukemia blasts. ► All isolated cytotoxic T lymphocyte (CTL) clones recognized the HLA-B∗51:01 molecule. ► Pretransplant leukemia blasts were lysed by CTLs, but post-transplant blasts were not. ► B∗51:01-reactive CTLs were detected in patient blood just before relapse. ► Our data indicate leukemia escape from immunological pressure by HLA-specific CTLs.
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