Multi-omics insights into anti-colitis benefits of the synbiotic and postbiotic derived from wheat bran arabinoxylan and Limosilactobacillus reuteri
文献类型： 外文期刊
作者： Zhou, Lanqi 1 ; Song, Wei 1 ; Liu, Tianqi 1 ; Yan, Tao 2 ; He, Ziyan 1 ; He, Weitai 3 ; Lv, Jiayao 1 ; Zhang, Shiyi 1 ; Dai, Xiaoshuang 4 ; Yuan, Li 1 ; Shi, Lin 1 ;
作者机构： 1.Shaanxi Normal Univ, Sch Food Engn & Nutr Sci, Xian 710062, Shaanxi, Peoples R China
2.South China Univ Technol, Sch Food Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
3.Shaanxi Normal Univ, Natl Engn Lab Resource Dev Endangered Crude Drugs, Xian 710062, Peoples R China
4.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Inst Food Sci, Hangzhou 310021, Peoples R China
5.Xbiome, Sci Res Bldg,Room 907,Tsinghua Hightech Pk, Shenzhen, Peoples R China
关键词： Wheat bran arabinoxylan; Limosilactobacillus reuteri; Tryptophan metabolism; Intestinal inflammation
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）
ISSN： 0141-8130
年卷期： 2024 年 278 卷
页码：
收录情况： SCI
摘要： Exploring nutritional therapies that manipulate tryptophan metabolism to activate AhR signaling represents a promising approach for mitigating chronic colitis. Arabinoxylan is a bioactive constituent abundant in wheat bran. Here, we comprehensively investigated anti-colitis potentials of wheat bran arabinoxylan (WBAX), its synbiotic and postbiotic derived from WBAX and Limosilactobacillus reuteri WX-94 (i.e., a probiotic strain exhibiting tryptophan metabolic activity). WBAX fueled L. reuteri and promoted microbial conversion of tryptophan to AhR ligands during in vitro fermentation in the culture medium and in the fecal microbiota from type 2 diabetes. The WBAX postbiotic outperformed WBAX and its synbiotic in augmenting efficacy of tryptophan in restoring DSS-disturbed serum immune markers, colonic tight junction proteins and gene profiles involved in amino acid metabolism and FoxO signaling. The WBAX postbiotic remodeled gut microbiota and superiorly enhanced AhR ligands (i.e., indole metabolites and bile acids), alongside with elevation in colonic AhR and IL-22. Associations between genera and metabolites modified by the postbiotic and colitis in human were verified and strong binding capacities between metabolites and colitis-related targets were demonstrated by molecular docking. Our study advances the novel perspective of WBAX in manipulating tryptophan metabolism and anticolitis potentials of WBAX postbiotic via promoting gut microbiota-dependent AhR signaling.
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