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NKT and tolerance.

Julien Diana1, Lucie Beaudoin, Anne-Sophie Gautron

  • 1INSERM U986, Hôpital Cochin/St Vincent de Paul, Paris, France.

Methods in Molecular Biology (Clifton, N.J.)
|October 14, 2010
PubMed
Summary
This summary is machine-generated.

Natural killer T (NKT) cells are unique immune cells that recognize lipid antigens. This chapter details methods to study their regulatory roles in both mouse and human immune systems.

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Area of Science:

  • Immunology
  • Cellular Immunology
  • Innate Immunity

Background:

  • Natural killer T (NKT) cells are innate-like αβ T cells conserved in humans and mice.
  • They differ from conventional T cells by recognizing lipid antigens via the CD1d molecule.
  • NKT cells express a restricted T cell receptor (TCR) repertoire and are activated by α-galactosylceramide (α-GalCer).

Purpose of the Study:

  • To describe essential tools and techniques for studying the regulatory functions of NKT cells.
  • To cover methods applicable to both in vivo and in vitro investigations.
  • To include protocols for analyzing NKT cells from both mouse models and human blood samples.

Main Methods:

  • Utilizing CD1d tetramer technology for NKT cell detection.
  • Employing α-galactosylceramide (α-GalCer) for NKT cell activation studies.
  • Implementing in vivo and in vitro experimental systems to assess NKT cell function.

Main Results:

  • NKT cells rapidly produce cytokines upon activation, influencing innate and adaptive immunity.
  • Studies have elucidated the dual regulatory role of NKT cells, capable of suppressing or exacerbating immune responses.
  • Established protocols allow for comprehensive analysis of NKT cell activity and regulatory impact.

Conclusions:

  • NKT cells play a significant, multifaceted role in immune regulation.
  • The described tools and techniques are crucial for advancing research into NKT cell biology.
  • Understanding NKT cell function is key to developing novel immunotherapies.