Interstitial cells of Cajal in the normal human gut and in Hirschsprung disease

Stefan Gfroerer1, Udo Rolle

  • 1Department of Paediatric Surgery, University Hospital, Goethe University Frankfurt/M, 60596 Frankfurt/M, Germany, Stefan.Gfroerer@kgu.de

Insights

Hirschsprung disease (HD) involves impaired gut innervation. This review explores how interstitial cells of Cajal (ICC) dysfunction contributes to motility issues in HD patients.

Area of Science:

  • Gastroenterology and Developmental Biology

Background:

  • Hirschsprung disease (HD) is the most common congenital gastrointestinal motility disorder.
  • It results from defective intrinsic innervation of the distal bowel, causing functional intestinal obstruction.
  • Interstitial cells of Cajal (ICC) are crucial for gastrointestinal peristalsis and motility.

Purpose of the Study:

  • To review the distribution and functions of ICCs in the normal gut.
  • To examine the role of ICCs in the pathogenesis of Hirschsprung disease.

Main Methods:

  • Literature review focusing on the role of ICCs in gastrointestinal motility.
  • Analysis of studies detailing ICC distribution and function in both healthy and HD conditions.

Main Results:

  • ICCs are specialized pacemaker cells generating slow waves essential for peristalsis.
  • ICCs regulate mechanical activity and neurotransmission in the gut.
  • Impairments in ICCs are implicated in motility dysfunction, including in Hirschsprung disease.

Conclusions:

  • Understanding ICCs' role is vital for elucidating Hirschsprung disease pathogenesis.
  • Defects in ICCs likely contribute significantly to the motility dysfunction observed in HD.
  • Further research into ICCs may reveal new therapeutic targets for HD.

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