concurrent detection of circulating minor histocompatibility antigen-specific cd8+ t cells in sct recipients by combinatorial encoding mhc multimers并行检测循环次要组织相容性抗原cd8 + t细胞在sct接受者通过组合编码mhc多聚体.pdfVIP

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concurrent detection of circulating minor histocompatibility antigen-specific cd8+ t cells in sct recipients by combinatorial encoding mhc multimers并行检测循环次要组织相容性抗原cd8 + t细胞在sct接受者通过组合编码mhc多聚体.pdf

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concurrentdetectionofcirculatingminorhistocompatibilityantigen-specificcd8tcellsinsctrecipientsbycombinatorialencodingmhcmultimers并行检测循环次要组织相容性抗原cd8t细胞在sct接受者通过组合编码mhc多聚体

Concurrent Detection of Circulating Minor Histocompatibility Antigen-Specific CD8+ T Cells in SCT Recipients by Combinatorial Encoding MHC Multimers 1 1 1 2 Kelly Broen , Annelies Greupink-Draaisma , Rob Woestenenk , Nicolaas Schaap , Anthony G. 3. 1 . Brickner , Harry Dolstra * 1 Laboratory of Hematology, Department of Laboratory Medicine, Radboud University Nijmegen Medical Centre, The Netherlands, 2 Department of Hematology, Radboud University Nijmegen Medical Centre, The Netherlands, 3 Departments of Medicine and Immunology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania, United States of America Abstract Allogeneic stem cell transplantation (SCT) is a potentially curative treatment for patients with hematologic malignancies. Its therapeutic effect is largely dependent on recognition of minor histocompatibility antigens (MiHA) by donor-derived CD8+ T cells. Therefore, monitoring of multiple MiHA-specific CD8+ T cell responses may prove to be valuable for evaluating the efficacy of allogeneic SCT. In this study, we investigated the use of the combinatorial encoding MHC multimer technique to simultaneously detect MiHA-specific CD8+ T cells in peripheral blood of SCT recipients. Feasibility of this approach was demonstrated by applying dual-color encoding MHC multimers for a set of 10 known MiHA. Interestingly, single staining using a fluorochrome- and Qdot-based five-color combination showed comparable results to dual-color staining for most MiHA-specific CD8+ T cell responses. In addition, we determined the potential value of combinatorial encoding MHC multimers in MiHA identification. Therefore, a set of 75 candidate MiHA peptides w