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Mesalamine-Mediated Amelioration of Experimental Colitis in Piglets Involves Gut Microbiota Modulation and Intestinal Immune Cell Infiltration

文献类型： 外文期刊

作者： Huang, Yonggang 1 ; Wu, Miaomiao 1 ; Xiao, Hao 2 ; Liu, Hongnan 3 ; Yang, Guan 4 ;

作者机构： 1.Hunan Agr Univ, Coll Anim Sci & Technol, Anim Nutr Genome & Germplasm Innovat Res Ctr, Changsha, Peoples R China

2.Guangdong Acad Agr Sci, Inst Anim Sci, State Key Lab Livestock & Poultry Breeding, Guangzhou, Peoples R China

3.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Hunan Prov Key Lab Anim Nutr Physiol & Metab Proc, Changsha, Peoples R China

4.City Univ Hong Kong, Dept Infect Dis & Publ Hlth, Hong Kong, Peoples R China

关键词： colitis; gut microbiota; immune cells; mesalamine; piglet

期刊名称：FRONTIERS IN IMMUNOLOGY （ 影响因子：8.786； 五年影响因子：8.876 ）

ISSN： 1664-3224

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Mesalamine (MES), also known as 5-aminosalicylic acid, is effective in treating mild to moderate ulcerative colitis (UC). The mechanisms of its actions are not fully elucidated. The aim of this study was to investigate the effects of MES treatment on intestinal microbiota and immune system in an dextran sulfate sodium (DSS)-induced UC model in postweaning piglets. Eighteen weaned piglets were assigned randomly to the following treatments: control group (CON, distilled water), DSS group (DSS, 3% DSS), and MES group (MES, 3% DSS + 2 g/day MES). Our results showed that MES treatment alleviates DSS-induced colitis in piglets, as evidenced by a reduced diarrhea index score and increased average daily gain (P < 0.05). This is accompanied by decreased diamine oxidase activity, D-lactate level (P < 0.05), and attenuated mucosal damage. MES treatment also decreased the abundance of Methanogens and reduced colon CD11b(+) macrophage and CD3(+) T-cell infiltrations in piglets with DSS-induced colitis (P < 0.05). Collectively, these data indicate that MES treatment-mediated colitis protection may involve microbiota and immune cell alterations.

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