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Updated: Jun 11, 2026

Evaluating Therapeutic Interventions in the SHIP-deficient Mouse Model of Crohn Disease-like Ileitis and Fibrosis
09:44

Evaluating Therapeutic Interventions in the SHIP-deficient Mouse Model of Crohn Disease-like Ileitis and Fibrosis

Published on: October 14, 2025

Crohn's disease as an immunodeficiency

Bu'Hussain Hayee1, Farooq Z Rahman, Gavin Sewell

  • 1Department of Molecular Medicine, University College London, London, WC1E 6JJ, UK. b.hayee@nhs.net

Expert Review of Clinical Immunology
|July 3, 2010
PubMed

Insights

Crohn's disease (CD) may stem from a primary immunodeficiency, not just T-cell issues. This innate immune defect explains the characteristic inflammation, opening new therapeutic avenues for CD patients.

Area of Science:

  • Immunology
  • Gastroenterology
  • Genetics

Background:

  • Crohn's disease (CD) pathogenesis traditionally viewed as T-cell dysregulation.
  • Focus has been on chronic inflammation, overlooking potential primary immune defects.

Purpose of the Study:

  • Re-evaluate CD pathogenesis, proposing a primary immunodeficiency model.
  • Investigate the link between innate immune defects and granulomatous inflammation in CD.
  • Identify novel therapeutic and diagnostic targets for Crohn's disease.

Main Methods:

  • Review of molecular biological and clinical investigations.
  • Analysis of genome-wide association studies (GWAS) data.
  • In vitro and in vivo immune system stimulation studies.

Main Results:

  • Evidence suggests CD is a primary immunodeficiency.
  • Innate immune dysfunction is implicated in CD pathogenesis, though heritable risk is <20%.
  • Immune stimulation studies reveal new insights into disease mechanisms.

Conclusions:

  • CD pathogenesis may involve a primary defect in the innate immune system.
  • This defect mechanistically links to the granulomatous inflammation seen in CD.
  • Novel therapeutic and diagnostic strategies for CD can emerge from understanding innate immunity.

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