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Related Experiment Videos

Costimulation and autoimmunity

E A Tivol1, A N Schweitzer, A H Sharpe

  • 1Blood Center of Southeastern Wisconsin, Milwaukee 53201-2178, USA. btivol@smtpgate.bcsew.edu

Current Opinion in Immunology
|December 1, 1996
PubMed
Summary

Recent research highlights the B7-CD28/CTLA-4 pathway

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Area of Science:

  • Immunology
  • Molecular Biology
  • Autoimmunity

Background:

  • The B7-CD28/CTLA-4 pathway is crucial for T cell activation.
  • Its role in self-tolerance has been a recent focus of investigation.

Purpose of the Study:

  • To elucidate the function of the B7-CD28/CTLA-4 pathway in T cell regulation.
  • To understand its involvement in maintaining and disrupting self-tolerance.

Main Methods:

  • Review of recent studies on T cell activation and costimulation.
  • Analysis of data from animal models of autoimmunity.

Main Results:

  • CTLA-4 acts as a key negative regulator of T cell activation and autoreactivity.
  • Costimulation via this pathway influences self-tolerance maintenance and breakdown.

Conclusions:

  • The B7-CD28/CTLA-4 pathway is vital in autoimmune diseases.
  • Its manipulation in animal models demonstrates its role in disease initiation and progression.