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.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

High Throughput Sequencing of T Cell Antigen Receptors Reveals a Conserved TCR Repertoire

The T-cell receptor (TCR) repertoire is a mirror of the human immune system that reflects processes caused by infections, cancer, autoimmunity, and aging. Next-generation sequencing has become a powerful tool for deep TCR profiling. Herein, we used this technology to study the repertoire features of TCR beta chain in the blood of healthy individuals.Peripheral blood samples were collected from ...

متن کامل

Longitudinal analysis of T cell receptor (TCR) gene usage by human immunodeficiency virus 1 envelope-specific cytotoxic T lymphocyte clones reveals a limited TCR repertoire

Human immunodeficiency virus 1 (HIV-1) infection is associated with a vigorous cellular immune response that allows detection of cytotoxic T lymphocyte (CTL) activity using freshly isolated peripheral blood mononuclear cells (PBMC). Although restricting class I antigens and epitopes recognized by HIV-1-specific CTL have been defined, the effector cells mediating this vigorous response have been...

متن کامل

A Truncated T Cell Receptor Repertoire Reveals

Induction of T cell responses to an antigenic peptide that is known to bind a major histocompatibility complex molecule is a function of either the T cell receptor (TCI<) repertoire or regulatory influences by CD8 or CD4 regulatory T cells. We have tested the hypothesis that a lack of 10 TC1L V~ gene segments in Vf3 a mice may result in an incomplete repertoire of regulatory T cells involved in...

متن کامل

High-throughput immunoglobulin repertoire analysis distinguishes between human IgM memory and switched memory B-cell populations.

B-cell receptor (BCR) diversity is achieved centrally by rearrangement of Variable, Diversity, and Joining genes, and peripherally by somatic hypermutation and class-switching of the rearranged genes. Peripheral B-cell populations are subject to both negative and positive selection events in the course of their development that have the potential to shape the BCR repertoire. The origin of IgM(+...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: eLife

سال: 2021

ISSN: ['2050-084X']

DOI: https://doi.org/10.7554/elife.63502