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[Immune tolerance]

M Seman1

  • 1Laboratoire d'immunodifférenciation, Institut Jacques-Monod, CNRS-Université Paris 7.

La Revue Du Praticien
|January 1, 1994
PubMed
Summary
This summary is machine-generated.

Immune tolerance prevents reactions to self-antigens through central and peripheral mechanisms. Failures in these processes, like incomplete deletion or anergy deregulation, can lead to autoimmune diseases.

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Area of Science:

  • Immunology
  • Autoimmunity
  • Cellular Biology

Context:

  • Immune tolerance is crucial for preventing autoimmune diseases.
  • Central and peripheral mechanisms maintain self-tolerance.
  • Dysregulation of these mechanisms can lead to autoimmune conditions.

Purpose:

  • To summarize the mechanisms of immune tolerance.
  • To explain the breakdown of self-tolerance leading to autoimmunity.
  • To highlight the current limitations in clinically inducing tolerance.

Summary:

  • Immune tolerance, the absence of immune reactions to self or foreign antigens, is maintained by central deletion of self-reactive lymphocytes and peripheral anergy.
  • Peripheral tolerance involves mechanisms like signal discordance and antagonistic lymphocyte interactions, leading to reversible anergy.

Related Experiment Videos

  • Breakdown of self-tolerance, due to issues like cytokine deregulation or incomplete clonal deletion, can cause autoimmune diseases.

    • Impact:

    • Understanding immune tolerance mechanisms is key to developing treatments for autoimmune diseases.
    • Current inability to clinically induce tolerance necessitates further research into its complex regulation.
    • This knowledge gap limits the development of targeted therapies beyond broad immunosuppression.