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Caspase recruitment domain-containing sensors and adaptors in intestinal innate immunity

Petr Hruz1, Lars Eckmann

  • 1Department of Medicine, University of California, San Diego, La Jolla, California, USA.

Current Opinion in Gastroenterology
|February 28, 2008
PubMed

Insights

Caspase recruitment domain (CARD)-containing sensors and adaptors are key in detecting pathogens and initiating innate immunity. Understanding these proteins may lead to new treatments for intestinal inflammatory diseases.

Area of Science:

  • Immunology
  • Molecular Biology
  • Gastroenterology

Background:

  • Intracellular caspase recruitment domain (CARD)-containing proteins are expressed in myeloid, lymphoid, and intestinal epithelial cells.
  • These proteins play a crucial role in the innate immune system's response to pathogens.

Purpose of the Study:

  • To review the physiological functions of selected CARD-containing sensor and adaptor proteins.
  • To elucidate their role in the pathogenesis of intestinal diseases.

Main Methods:

  • Review of current literature on CARD-containing proteins.
  • Analysis of signaling pathways involving Toll-like receptors and non-Toll-receptor pathways converging on CARD adaptors.

Main Results:

  • CARD-containing sensors like NOD1, NOD2, and IPAF detect microbial structures.
  • Activated sensors interact with adaptors (CARD9, RIP2, ASC) to initiate innate immune responses.
  • These pathways are crucial for host defense against gastrointestinal pathogens.

Conclusions:

  • CARD-containing sensors and adaptors are vital for innate host defense against gastrointestinal pathogens.
  • Their involvement in regulating inflammatory responses suggests potential as therapeutic targets for intestinal inflammatory conditions.
Abstract

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