Journal List > Korean J Gastroenterol > v.60(5) > 1007027

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Kim: Clostridium Clusters IV and XIVa That Can Promote the Induction of Foxp3+ Regulatory Treg Cells in Gut as a Novel Strategy to Prevent and Treat Inflammatory Bowel Diseases
Article: Induction of Colonic Regulatory T Cells by Indigenous Clostridium Species ([Related article:] Science 2011;331:337-341)

Figures and Tables

Fig. 1
Summary of the induction of regulatory T (Treg) cells through the interaction between indigenous Clostridium species (clusters IV and XIVa) and intestinal epithelial cells (IECs). After weaning, Clostridium species containing clusters IV and XIVa become prominent in the colon, where they form a thick layer on the IECs. Clostridium species enhance the production of matrix metalloproteinases (MMPs) from IECs to convert transforming growth factor (TGF)-β from the latent to the active form. In addition, Clostridium clusters IV and XIVa promote the production of indoleamine 2,3-dioxygenase (IDO) from IECs. Naive CD4+ T cells stimulated with the active form of TGF-β and IDO are differentiated into Treg cells that produce interleukin (IL)-10, leading to suppression of inflammatory responses in the gut (modified from Fig. 2 in the article of Kunisawa and Kiyono [Cell Host Microbe 2011;9:83-84]).
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Notes

Financial support: None.

Conflict of interest: None.

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