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Related Experiment Videos

Receptor selection in B and T lymphocytes.

D Nemazee1

  • 1Department of Immunology, Scripps Research Institute, La Jolla, California 92037, USA. nemazee@scripps.edu

Annual Review of Immunology
|June 3, 2000
PubMed
Summary

Immune specificity is fine-tuned by receptor selection, which modifies antigen receptors via V(D)J recombination. This process enhances self/non-self discrimination in T and B cells, complementing clonal selection.

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Area of Science:

  • Immunology
  • Molecular Biology
  • Cell Biology

Background:

  • Clonal selection is a primary immune mechanism controlling lymphocyte survival based on antigen receptor signaling.
  • Immune specificity is also regulated by receptor selection, a process distinct from clonal selection.
  • Receptor selection influences the V(D)J recombination process, altering antigen receptor specificity.

Purpose of the Study:

  • To elucidate the role of receptor selection in immune specificity.
  • To explore how receptor selection impacts V(D)J recombination and lymphocyte differentiation.
  • To discuss recent findings on receptor editing in T cells and B-1 B cells.

Main Methods:

  • Analysis of V(D)J recombination mechanisms.
  • Investigation of lymphocyte differentiation pathways.
  • Review of existing literature on receptor selection and editing.

Main Results:

  • Receptor selection regulates V(D)J recombination, enabling modification or fixation of antigen receptor specificity.
  • This process is crucial for allelic exclusion, positive selection, receptor editing, and repertoire diversification.
  • Receptor selection enhances the immune system's ability to discriminate between self and non-self antigens.

Conclusions:

  • Receptor selection is a critical mechanism for refining immune responses by modulating antigen receptors.
  • Understanding receptor selection and editing provides insights into immune system regulation and potential therapeutic targets.
  • The study highlights the intricate interplay between V(D)J recombination and lymphocyte selection in adaptive immunity.

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