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Related Experiment Video

Updated: Jun 3, 2026

Induction of Murine Intestinal Inflammation by Adoptive Transfer of Effector CD4+CD45RBhigh T Cells into Immunodeficient Mice

Induction of Murine Intestinal Inflammation by Adoptive Transfer of Effector CD4⁺CD45RB^high T Cells into Immunodeficient Mice

Published on: April 21, 2015

Interferon-γ modulates intestinal epithelial cell function in-vitro through a TGFβ-dependent mechanism.

Peter Hoffmann¹, Andreas Sturm, Jürgen Stein

¹Department of Internal Medicine I, Kliniken Essen Mitte, Germany.

Regulatory Peptides

|March 10, 2011

Summary

Interferon γ (IFNγ) enhances intestinal epithelial cell migration and inhibits proliferation, potentially aiding wound healing. These effects are mediated by transforming growth factor β (TGFβ), suggesting a role for IFNγ in maintaining intestinal integrity.

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Induction of Intestinal Inflammation by Adoptive Transfer of CBir1 TCR Transgenic CD4+ T Cells to Immunodeficient Mice

Induction of Intestinal Inflammation by Adoptive Transfer of CBir1 TCR Transgenic CD4⁺ T Cells to Immunodeficient Mice

Published on: December 16, 2021

Area of Science:

Immunology
Gastroenterology
Cell Biology

Background:

Interferon γ (IFNγ) is a potent immune modulator primarily targeting immune cells.
While IFNγ affects intestinal barrier function, its specific impacts on intestinal epithelial cells (IECs) are not fully understood.

Purpose of the Study:

To investigate the functional effects of IFNγ on intestinal epithelial cell migration, proliferation, and apoptosis.
To elucidate the role of transforming growth factor β (TGFβ) in mediating IFNγ's effects on IECs.

Main Methods:

In vitro models of epithelial restitution and cell proliferation (MTT assays).
Flow cytometry for apoptosis assessment and Northern blot for TGFβ mRNA expression analysis.
Use of neutralizing antibodies against TGFβ to block IFNγ effects.

Main Results:

IFNγ significantly stimulated IEC migration in a wound healing model.
IFNγ inhibited IEC proliferation in a dose-dependent manner without inducing apoptosis.
TGFβ-neutralizing antibodies blocked IFNγ-induced migration and proliferation changes, supported by increased TGFβ1 mRNA expression.

Conclusions:

IFNγ modulates IEC functions, including migration and proliferation, through a TGFβ-dependent pathway.
IFNγ plays a role in intestinal wound healing and maintaining intestinal epithelial integrity after injury.