Mucosal exudation of plasma is a noninjurious intestinal defense mechanism

C G Persson, B Gustafsson, Jonas Erjefält, Frank Sundler

Research output: Contribution to journalArticlepeer-review

Abstract

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.
Original languageEnglish
Pages (from-to)581-586
JournalAllergy
Volume48
Issue number8
DOIs
Publication statusPublished - 1993

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Neuroendocrine Cell Biology (013212008), Airway Inflammation and Immunology (013212038)

Subject classification (UKÄ)

  • Respiratory Medicine and Allergy

Free keywords

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

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