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QUANTITATIVE ASSESSMENT OF HUMAN T-CELL REPERTOIRE RECOVERY AFTER ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANTATION
QUANTITATIVE ASSESSMENT OF HUMAN T-CELL REPERTOIRE RECOVERY AFTER ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANTATION
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机译:同种异体造血干细胞移植后人体T细胞库恢复的定量评估
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摘要
A method and an apparatus are provided for determining T-cell repertoire recovery after allo-HSCT or identifying patients at high risk of infection. Combination of 5-RACE PCR with deep sequencing was used to quantify TCR diversity in 33 individuals using a single oligonucleotide pair. Analysis of duplicate blood samples revealed highly reproducible detection of expanded TCR clonotypes. After 6 months, recipients of cord blood grafts without anti-thymocyte globulin therapy approximated the TCR diversity of healthy subjects, whereas recipients of T-cell-depleted peripheral blood stem cell grafts had a 28-fold and 14-fold lower CD4+ and CD8+ T-cell diversity, respectively. After 12 months, these differences had leveled out for the CD4+, but not the CD8+ T-cell compartment.
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