Related Experiment Video

Updated: Jul 6, 2026

Analysis of Cell Cycle Position in Mammalian Cells
12:19

Analysis of Cell Cycle Position in Mammalian Cells

Published on: January 21, 2012

Mid-life crisis for M cells

R L Owen1

  • 1University of California San Francisco, USA.

Gut
|March 20, 1998
PubMed

Insights

Researchers developed a novel model of the gut

Area of Science:

  • Gastrointestinal physiology
  • Immunology
  • Cell biology

Background:

  • The gut epithelium is generally impermeable, but Peyer's patches (PP) feature specialized follicle-associated epithelium (FAE) with M cells for antigen transport.
  • M cells are crucial for initiating immune responses and antigen sampling in the gut.

Purpose of the Study:

  • To establish a reproducible in vitro model of FAE and M cells.
  • To investigate the functional characteristics of this M cell model.

Main Methods:

  • Culturing PP lymphocytes with the differentiated human intestinal Caco-2 cell line.
  • Observing lymphocyte interaction with the epithelial monolayer.
  • Assessing particle and bacterial transport.

Main Results:

  • A system mimicking FAE and M cell characteristics was successfully established.
  • Lymphocytes induced epithelial reorganization, including brush border changes.
  • Temperature-dependent transport of particles and Vibrio cholerae was observed.

Conclusions:

  • The developed model effectively replicates key FAE and M cell functions.
  • This system is a valuable tool for studying intestinal physiology.
  • Potential applications include vaccine research and drug delivery studies.

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