Diversity, functionality, and stability of the T cell repertoire derived in vivo from a single human T cell precursor
Abstract
In this report, we have analyzed the human T cell repertoire derived in vivo from a single T cell precursor. A unique case of X-linked severe combined immunodeficiency in which a reverse mutation occurred in an early T cell precursor was analyzed to this end. It was determined that at least 1,000 T cell clones with unique T cell receptor-β sequences were generated from this precursor. This diversity seems to be stable over time and provides protection from infections in vivo. A similar estimation was obtained in an in vitro murine model of T cell generation from a single cell precursor. Overall, our results document the large diversity potential of T cell precursors and provide a rationale for gene therapy of the block of T cell development.
- Publication:
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Proceedings of the National Academy of Science
- Pub Date:
- January 2000
- DOI:
- 10.1073/pnas.97.1.274
- Bibcode:
- 2000PNAS...97..274B
- Keywords:
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- Immunology