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The Journal of Immunology
Article . 2014 . Peer-reviewed
License: OUP Standard Publication Reuse
Data sources: Crossref
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IFN-γ–Mediated Induction of an Apical IL-10 Receptor on Polarized Intestinal Epithelia

Authors: Kominsky, Douglas J.; Campbell, Eric L.; Ehrentraut, Stefan F.; Wilson, Kelly E.; Kelly, Caleb J.; Glover, Louise E.; Collins, Colm B.; +8 Authors

IFN-γ–Mediated Induction of an Apical IL-10 Receptor on Polarized Intestinal Epithelia

Abstract

Abstract Cytokines secreted at sites of inflammation impact the onset, progression, and resolution of inflammation. In this article, we investigated potential proresolving mechanisms of IFN-γ in models of inflammatory bowel disease. Guided by initial microarray analysis, in vitro studies revealed that IFN-γ selectively induced the expression of IL-10R1 on intestinal epithelia. Further analysis revealed that IL-10R1 was expressed predominantly on the apical membrane of polarized epithelial cells. Receptor activation functionally induced canonical IL-10 target gene expression in epithelia, concomitant with enhanced barrier restitution. Furthermore, knockdown of IL-10R1 in intestinal epithelial cells results in impaired barrier function in vitro. Colonic tissue isolated from murine colitis revealed that levels of IL-10R1 and suppressor of cytokine signaling 3 were increased in the epithelium and coincided with increased tissue IFN-γ and IL-10 cytokines. In parallel, studies showed that treatment of mice with rIFN-γ was sufficient to drive expression of IL-10R1 in the colonic epithelium. Studies of dextran sodium sulfate colitis in intestinal epithelial-specific IL-10R1–null mice revealed a remarkable increase in disease susceptibility associated with increased intestinal permeability. Together, these results provide novel insight into the crucial and underappreciated role of epithelial IL-10 signaling in the maintenance and restitution of epithelial barrier and of the temporal regulation of these pathways by IFN-γ.

Keywords

STAT3 Transcription Factor, Dextran Sulfate, Interleukin-10 Receptor alpha Subunit, Cell Polarity, Dextrans, Epithelial Cells, Colitis, Permeability, Recombinant Proteins, Cell Line, Interleukin-10, Mice, Inbred C57BL, Interferon-gamma, Mice, Gene Expression Regulation, Animals, Cytokines, Humans, Intestinal Mucosa, Fluorescein-5-isothiocyanate

  • BIP!
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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    92
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 1%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
92
Top 1%
Top 10%
Top 10%
bronze