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Mucosal exudation of plasma is a noninjurious intestinal defense mechanism

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Author

Summary, in English

We have demonstrated in sensitized rats that the immediate response to endointestinal challenge with allergen (10(-6) M ovalbumin) is characterized by mucosal exudation of plasma with little or no concomitant change in the mucosal absorption capacity. The luminal entry of plasma macromolecules also leaves the light microscopic structure and the ultrastructure of the mucosa unaffected. It is possible that the plasticity of epithelial zonulae occludens allows a noninjurious and unidirectional paracellular flux of extravasated plasma into the gut lumen. We propose that inflammatory-stimulus-induced mucosal exudation of plasma belongs to the first-line defense mechanisms of the intact lining of the intestine.

Publishing year

1993

Language

English

Pages

581-586

Publication/Series

Allergy

Volume

48

Issue

8

Document type

Journal article

Publisher

Wiley-Blackwell

Topic

  • Respiratory Medicine and Allergy

Keywords

  • endointestinal allergen challenge
  • epithelial integrity
  • luminal entry of plasma
  • mucosal exudation

Status

Published

Research group

  • Airway Inflammation and Immunology

ISBN/ISSN/Other

  • ISSN: 1398-9995