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Related Concept Videos

T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

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T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
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An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
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A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes
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T Cell Epitope Predictions.

Bjoern Peters1,2, Morten Nielsen3,4, Alessandro Sette1,2

  • 1Division of Vaccine Discovery, La Jolla Institute for Immunology, La Jolla, California 92037, USA; email: bpeters@lji.org, alex@lji.org.

Annual Review of Immunology
|February 12, 2020
PubMed
Summary
This summary is machine-generated.

T cells recognize specific T cell epitopes presented by MHC molecules, crucial for immune responses. Computational methods predict these epitopes, aiding research in various diseases and guiding experimental studies.

Keywords:
T cellsbenchmarkingdatabasesimmune epitopesmachine learning

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Area of Science:

  • Immunology
  • Computational Biology

Background:

  • T cells survey the body by monitoring Major Histocompatibility Complex (MHC)-bound ligands on cell surfaces.
  • T cell epitopes are specific MHC ligands that elicit a T cell immune response, vital for understanding immunity.

Purpose of the Study:

  • To highlight the importance of identifying T cell epitopes for tracking and stimulating T cells in various immune-related conditions.
  • To introduce computational approaches for predicting T cell epitopes due to the complexity of epitope mapping.

Main Methods:

  • Review of T cell epitope recognition mechanisms.
  • Discussion of computational methods for predicting T cell epitopes.

Main Results:

  • T cell epitope recognition is influenced by an individual's genetic makeup (MHC molecules) and environmental exposures.
  • Computational prediction of T cell epitopes is essential for guiding experimental epitope mapping.

Conclusions:

  • Accurate T cell epitope identification is critical for advancing research in infectious diseases, allergies, autoimmunity, transplantation, and cancer.
  • Computational epitope prediction tools enhance the analysis of immunogenic potential and experimental study design.