Journal
IMMUNE NETWORK
Volume 18, Issue 1, Pages -Publisher
KOREA ASSOC IMMUNOLOGISTS
DOI: 10.4110/in.2018.18.e15
Keywords
Microbial metabolites; Dermatitis; atopic; Food allergy; Poly-gamma-glutamic acid; iNKT cells
Categories
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2016R1D1A1A09919293]
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Emerging evidence demonstrates that the microbiota plays an essential role in shaping the development and function of host immune responses. A variety of environmental stimuli, including foods and commensals, are recognized by the host through the epithelium, acting as a physical barrier. Two allergic diseases, atopic dermatitis and food allergy, are closely linked to the microbiota, because inflammatory responses occur on the epidermal border. The microbiota generates metabolites such as short-chain fatty acids and poly-gamma-glutamic acid (gamma PGA), which can modulate host immune responses. Here, we review how microbial metabolites can regulate allergic immune responses. Furthermore, we focus on the effect of gamma PGA on allergic T helper (Th) 2 responses and its therapeutic application.
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