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Related Experiment Videos

Mucosal immunity.

M B Dwinell1, M F Kagnoff

  • 1Department of Medicine (0623D), Laboratory of Mucosal Immunology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0623, USA.

Current Opinion in Gastroenterology
|October 7, 2006
PubMed
Summary
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Recent research advances our understanding of mucosal immunity, highlighting the crucial role of epithelial cells and immune cell interactions in defending against pathogens. This work offers new insights into intestinal inflammation and celiac disease pathogenesis.

Area of Science:

  • Immunology
  • Gastroenterology
  • Cell Biology

Background:

  • Acquired mucosal immunity and host-innate immune cross-talk are vital for mucosal defense.
  • Previous research has laid groundwork for understanding lymphocyte trafficking and T cell origins at mucosal sites.

Purpose of the Study:

  • To elucidate the molecular mechanisms of lymphocyte trafficking and retention in intestinal sites.
  • To explore the extrathymic origin of mucosal T cells.
  • To identify ligands involved in intraepithelial T cell recognition.
  • To characterize epithelial cell mediators and responses in mucosal defense.
  • To advance the understanding of intestinal inflammatory diseases and celiac disease immunopathogenesis.

Main Methods:

  • Molecular biology techniques to elucidate lymphocyte trafficking.

Related Experiment Videos

  • Studies on T cell origins and differentiation.
  • Identification of novel ligands for T cell recognition.
  • Characterization of epithelial cell responses using in vitro and in vivo models.
  • Animal models for intestinal inflammatory diseases.
  • Biochemical studies on tissue transglutaminase.

    • Main Results:

    • A molecular basis for coordinated lymphocyte trafficking and retention in the intestine has been identified.
    • New insights into the extrathymic origin of intestinal mucosal T cells have been gained.
    • Ligands for intraepithelial T cell recognition have been described.
    • Epithelial cells are confirmed as integral components of the mucosal immune network, producing mediators crucial for defense against enteric pathogens.
    • Animal models have furthered the understanding of intestinal inflammatory disease.
    • Significant new insights into the immunopathogenesis of human celiac disease have emerged from studies on tissue transglutaminase.

    Conclusions:

    • Epithelial cells play an active and integral role in mucosal immunity.
    • Advances in understanding lymphocyte trafficking, T cell origins, and epithelial cell responses enhance knowledge of mucosal defense mechanisms.
    • Research on intestinal inflammatory diseases and celiac disease provides critical insights into human health.