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Related Experiment Videos

Altered goblet cell function in Hirschsprung's disease.

Hiroki Nakamura1, Christian Tomuschat1,2, David Coyle1

  • 1National Children's Research Centre, Our Lady's Children's Hospital, Dublin, Ireland.

Pediatric Surgery International
|February 1, 2018
PubMed
Summary

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This summary is machine-generated.

Goblet cell function is impaired in Hirschsprung's disease (HSCR), with decreased expression of key proteins and fewer goblet cells. This dysfunction may contribute to Hirschsprung's disease-associated enterocolitis (HAEC).

Area of Science:

  • Gastroenterology
  • Developmental Biology
  • Molecular Biology

Background:

  • Hirschsprung's disease-associated enterocolitis (HAEC) is a severe complication of Hirschsprung's disease (HSCR).
  • The intestinal mucosal barrier, particularly goblet cell function, is crucial for preventing bacterial adhesion and invasion.
  • Key proteins like Mucin 2 (MUC2), Trefoil factor 3 (TFF3), SAM pointed domain-containing ETS transcription factor (SPDEF), and Krueppel-like factor 4 (KLF4) are vital for goblet cell differentiation and mucus production.

Purpose of the Study:

  • To investigate the expression of TFF3, SPDEF, and KLF4, and the goblet cell population in HSCR patients.
  • To determine if goblet cell function is altered in the ganglionic and aganglionic bowel segments of HSCR patients.

Main Methods:

  • Quantitative PCR (qPCR) and Western blotting to assess gene and protein expression.
Keywords:
Goblet cellHirschsprung's diseaseHirschsprung's disease-associated enterocolitis

Related Experiment Videos

  • Confocal immunofluorescence microscopy to visualize protein localization.
  • Alcian blue staining to quantify goblet cell populations.
  • Analysis of colonic tissue from HSCR patients (n=10) and controls (n=10).

    • Main Results:

    • Significantly downregulated expression of TFF3, SPDEF, and KLF4 was observed in both aganglionic and ganglionic colon of HSCR patients compared to controls (p < 0.05).
    • A significant decrease in the goblet cell population was found in the colon of HSCR patients versus controls (p < 0.05).
    • Confocal microscopy confirmed markedly reduced TFF3, SPDEF, and KLF4 expression in the colonic epithelium of HSCR patients.

    Conclusions:

    • This study is the first to report decreased expression of TFF3, SPDEF, KLF4, and a reduced goblet cell population in the colon of HSCR patients.
    • Altered goblet cell function and reduced intestinal barrier integrity are implicated in the pathogenesis of HAEC.
    • These findings highlight potential therapeutic targets for preventing or treating HAEC in HSCR patients.