2′-Fucosyllactose alleviates OVA-induced food allergy in mice by ameliorating intestinal microecology and regulating the imbalance of Th2/Th1 proportion

Literature Information

Publication Date 2023-11-11
DOI 10.1039/D3FO03272H
Impact Factor 5.396
Authors

Ruixin Kou, Jin Wang, Ang Li, Yuanyifei Wang, Dancai Fan, Bowei Zhang, Wenhui Fu, Jingmin Liu, Hanyue Fu, Shuo Wang



Abstract

Food allergy (FA) has become a prominent problem in public health. 2′-Fucosyllactose (2′-FL) was reported to alleviate FA symptoms; however, the regulatory mechanism is still unclear. This study evaluated the 2′-FL antiallergic potential in an ovalbumin (OVA)-sensitized mouse model and explored the systemic effects of 2′-FL on gut microecology and the intestinal immune barrier. The results showed that 2′-FL alleviated allergy symptoms, decreased serum allergic indicator levels, enhanced the intestinal barrier, and attenuated low-grade inflammation. The up-regulation of G protein-coupled receptors (GPRs) was associated with higher levels of short-chain fatty acids (SCFAs) in 2′-FL intervention mice. 2′-FL also improved the intestinal microbiota diversity and increased the abundance of Akkermansia, Lachnospiraceae UCG-006, and Ruminococcaceae while suppressing Muribaculaceae, Desulfovibrionaceae, and Erysipelotrichaceae. Additionally, 2′-FL ameliorated the imbalance of Th2/Th1, mainly by decreasing Th2-type immune response and enhanced CD4 + Foxp3 + Treg immunoreaction. These results suggest that 2′-FL restores intestinal barrier defects, gut microbiota disorder, and immune impairment while alleviating ovalbumin-induced allergic symptoms in FA mice.

Source Journal

Food & Function

Food & Function
CiteScore: 10.1
Self-citation Rate: 3.9%
Articles per Year: 758

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