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Related Experiment Video

Updated: Feb 1, 2026

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Feed your gut with caution!

Vishal Singh1, Beng San Yeoh1, Matam Vijay-Kumar1,2

  • 1Department of Nutritional Sciences, The Pennsylvania State University, University Park, State College, PA, USA.

Translational Cancer Research
|December 12, 2018
PubMed
Summary
This summary is machine-generated.

The intestinal crypt structure shields stem cells from gut bacteria metabolites like butyrate. Colonocytes metabolize butyrate, creating a barrier that protects stem cell renewal and repair.

Keywords:
Gut microbiotabacterial fermentationbutyrategut inflammation

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Area of Science:

  • Gastroenterology
  • Cell Biology
  • Microbiology

Background:

  • The intestinal epithelium renews rapidly via stem cells in crypts.
  • Host defense relies on intestinal epithelium integrity against microbial metabolites.
  • Gut microbiota produce metabolites that can impact host cells.

Purpose of the Study:

  • To investigate how intestinal crypt structure protects stem/progenitor cells.
  • To identify specific microbial metabolites that suppress stem cell proliferation.
  • To understand the protective mechanisms for colonic stem cells.

Main Methods:

  • Analysis of intestinal crypt structure and cell populations.
  • Metabolomic analysis of gut microbial products.
  • Assessment of stem/progenitor cell proliferation in response to metabolites.

Main Results:

  • Intestinal crypts provide a structural defense for colonic epithelial stem/progenitor cells.
  • Butyrate, a microbial metabolite, was identified as a potent inhibitor of stem cell proliferation.
  • Colonocytes within the crypt rapidly metabolize butyrate, forming a protective barrier.

Conclusions:

  • The structural and metabolic design of intestinal crypts is crucial for protecting stem cells.
  • Metabolic processing by colonocytes creates a barrier against harmful microbial metabolites.
  • This mechanism ensures the continuous renewal and repair of the intestinal epithelium.