Epidermal growth factor protects mouse ileal mucosa from Triton X-100-induced injury

Radhakrishna Rao, Frank Porreca

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Luminal exposure of mouse ileal mucosal sheets in vitro to 0.3% Triton X-100 for 10 min resulted in a 45.3 ± 4.4% decrease in tissue resistance (R(t)). Luminal pretreatment of tissue with epidermal growth factor (EGF, 30 nM) reduced the Triton X-100-induced decrease in R(t) to 10.2 ± 3.5%. This effect of luminal EGF was concentration-related with an A50 value of 7.4 nM. EGF applied to the basal buffer also produced a similar protective effect, but it was 5.3-fold less potent than luminal EGF. Morphological analysis indicated the formation of denudations at villi tips by Triton X-100 which was prevented by EGF pretreatment. These results suggest that EGF may play a role in the protection of ileal mucosal integrity.

Original languageEnglish (US)
Pages (from-to)209-212
Number of pages4
JournalEuropean Journal of Pharmacology
Volume303
Issue number3
DOIs
StatePublished - May 15 1996

Keywords

  • EGF (epidermal growth factor)
  • epithelium
  • mucosal protection
  • receptor
  • tissue resistance

ASJC Scopus subject areas

  • Pharmacology

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