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Updated: Jul 12, 2026
08:59
T and B Cell Receptor Immune Repertoire Analysis using Next-generation Sequencing
Published on: January 12, 2021
Tracking phenotypically and functionally distinct T cell subsets via T cell repertoire diversity.
Katherine Kedzierska1, Nicole L La Gruta, John Stambas
1Department of Microbiology and Immunology, University of Melbourne, Parkville 3010, Melbourne, Australia.
Molecular Immunology
|August 28, 2007
Summary
Analyzing T cell receptor (TCR) repertoires reveals how T cells recognize viral peptides. Understanding TCR diversity is crucial for enhancing T cell responses against infections and improving immune function.
Area of Science:
- Immunology
- Molecular Biology
- Virology
Background:
- T cell receptors (TCRs) recognize peptide-MHC complexes, initiating immune responses.
- Antigen-specific T cell populations often exhibit biased usage of specific TCRbeta and TCRalpha chains.
- TCR repertoire analysis provides insights into immune response dynamics.
Purpose of the Study:
- To review TCR repertoires in viral responses.
- To discuss factors influencing TCR selection and diversity.
- To explore the link between TCR characteristics and T cell function.
Main Methods:
- Sequence analysis of TCRVbeta and TCRValpha CDR3 loops.
- Examination of TCR repertoires in acute and persistent viral infections.
- Clonal dissection of T cell populations based on avidity and memory phenotype.
Main Results:
- TCR repertoires in viral responses exhibit clonal diversity.
- Structural constraints and antigen dose significantly influence TCR selection.
- Distinct T cell populations can be defined at the clonal level.
Conclusions:
- TCR diversity impacts CD8+ T cell protective capacity and viral escape.
- Analyzing TCR selection and maintenance is vital for improving T cell-mediated immunity.
- Understanding TCR repertoires aids in developing strategies for enhanced T cell responsiveness.
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