Longitudinal high-throughput TCR repertoire profiling reveals the dynamics of T-cell memory formation after mild COVID-19 infection
نویسندگان
چکیده
COVID-19 is a global pandemic caused by the SARS-CoV-2 coronavirus. T cells play key role in adaptive antiviral immune response killing infected and facilitating selection of virus-specific antibodies. However, neither dynamics cross-reactivity SARS-CoV-2-specific T-cell nor diversity resulting memory well understood. In this study, we use longitudinal high-throughput receptor (TCR) sequencing to track changes repertoire following two mild cases COVID-19. both donors, identified CD4 + CD8 clones with transient clonal expansion after infection. We describe characteristic motifs TCR sequences COVID-19-reactive show preferential occurrence these publicly available large dataset repertoires from patients. that majority infection-reactive clonotypes acquire phenotypes. Certain were detected fraction at pre-infection time point, suggesting participation pre-existing cross-reactive SARS-CoV-2.
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ژورنال
عنوان ژورنال: eLife
سال: 2021
ISSN: ['2050-084X']
DOI: https://doi.org/10.7554/elife.63502