Microbial and dietary factors modulating intestinal regulatory T cell homeostasis |
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Authors: | Makoto Kinoshita Kiyoshi Takeda |
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Affiliation: | Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan; Laboratory of Mucosal Immunology, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan |
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Abstract: | To maintain a quiescent gut microenvironment, proper regulation of immune responses initiated by pro-inflammatory immune subsets is required. Several types of regulatory T cells are reported to exert pivotal roles in achieving this. Among various types of regulatory T cells, the crucial role of Foxp3+ Treg cells has been well documented. Furthermore, accumulating evidence demonstrates that both microbial and dietary factors influence the induction and suppressor functions of intestinal Foxp3+ Treg cells. Foxp3+ Treg cells are a highly activated T cell subset which responds rapidly to environmental and nutritional stimuli. Thus, sufficient nutrient supply is required to fuel the high energetic status of Foxp3+ Treg cells for the regulation of intestinal immunity. |
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Keywords: | Regulatory T cell Commensal microbe Dietary factor |
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