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Related Experiment Videos

Modulation of tight junction structure and function by cytokines.

S V Walsh1, A M Hopkins, A Nusrat

  • 1Epithelial Pathobiology Unit, Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322, USA.

Advanced Drug Delivery Reviews
|June 16, 2000
PubMed
Summary

Cytokines dynamically regulate tight junction (TJ) function, crucial for physiologic and pathologic states. This review examines how cytokines impact TJ structure and barrier function, influencing paracellular permeability.

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Area of Science:

  • Physiology
  • Cell Biology
  • Immunology

Background:

  • Tight junction (TJ) integrity is vital for maintaining physiological processes and preventing disease.
  • Disruptions in TJ function lead to altered paracellular permeability, a characteristic of various pathological conditions.
  • Emerging research indicates that cytokines play a significant role in modulating TJ function.

Purpose of the Study:

  • To review existing literature on the effects of cytokines on tight junction (TJ) function and structure.
  • To explore the mechanisms by which cytokines influence TJ barrier integrity.
  • To correlate cytokine-induced changes in TJs with alterations in TJ proteins and the actin cytoskeleton.

Main Methods:

  • Literature review of studies investigating cytokine effects on tight junctions.

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  • Analysis of in vitro and in vivo experimental data.
  • Examination of correlations between cytokine signaling, TJ protein expression, and cytoskeletal organization.

    • Main Results:

    • Cytokines are increasingly recognized as key regulators of tight junction (TJ) function.
    • Cytokine-mediated effects on TJs involve alterations in intrinsic TJ proteins.
    • Changes in the actin cytoskeleton are associated with cytokine-induced modulation of TJ barrier function.

    Conclusions:

    • Cytokines significantly impact tight junction (TJ) structure and function.
    • Understanding these cytokine-TJ interactions is crucial for comprehending both normal physiology and disease pathogenesis.
    • Further research into cytokine signaling pathways offers potential therapeutic targets for conditions involving altered paracellular permeability.