Single-cell PCR analysis of TCR repertoires selected by antigen in vivo: a high magnitude CD8 response is comprised of very few clones.

作者: Janet L Maryanski , C Victor Jongeneel , Philipp Bucher , Jean-Laurent Casanova , Paul R Walker

DOI: 10.1016/S1074-7613(00)80297-6

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摘要: Taking advantage of a potent MHC class I-restricted response that allows the identification antigen-selected CD8 T cells directly ex vivo, we characterized antigen-specific cell repertoires develop in individual mice by single-cell PCR analysis. Each immune displayed distinct yet structurally similar TCR repertoires. The overall repertoire size was estimated to be range 15-20 for most mice. No major differences were observed between primary and secondary responses. Moreover, hyperimmunized mouse expressed 8 months after initial immunization very found at peak response. Our results demonstrate high magnitude may composed few clones, least system analyzed, memory largely reflects selected

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