Population variability in the generation and selection of T-cell repertoires Journal Article
| Authors: | Sethna, Z.; Isacchin, G.; Dupic, T.; Mora, T.; Walczak, A. M.; Elhanati, Y. |
| Article Title: | Population variability in the generation and selection of T-cell repertoires |
| Abstract: | The diversity of T-cell receptor (TCR) repertoires is achieved by a combination of two intrinsically stochastic steps: random receptor generation by VDJ recombination, and selection based on the recognition of random self-peptides presented on the major histocompatibility complex. These processes lead to a large receptor variability within and between individuals. However, the characterization of the variability is hampered by the limited size of the sampled repertoires. We introduce a new software tool SONIA to facilitate inference of individual- specific computational models for the generation and selection of the TCR beta chain (TRB) from sequenced repertoires of 651 individuals, separating and quantifying the variability of the two processes of generation and selection in the population. We find not only that most of the variability is driven by the VDJ generation process, but there is a large degree of consistency between individuals with the inter-individual variance of repertoires being about 2% of the intra-individual variance. Known viral-specific TCRs follow the same generation and selection statistics as all TCRs. © 2020 Sethna et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| Journal Title: | PLoS Computational Biology |
| Volume: | 16 |
| Issue: | 12 |
| ISSN: | 1553-7358 |
| Publisher: | Public Library of Science |
| Date Published: | 2020-12-09 |
| Start Page: | e1008394 |
| Language: | English |
| DOI: | 10.1371/journal.pcbi.1008394 |
| PUBMED: | 33296360 |
| PROVIDER: | scopus |
| PMCID: | PMC7725366 |
| DOI/URL: | |
| Notes: | Article -- Export Date: 4 January 2021 -- Source: Scopus |
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