Mechanisms of Baicalin Alleviates Intestinal Inflammation: Role of M1 Macrophage Polarization and Lactobacillus amylovorus
文献类型： 外文期刊
作者： Zhang, Shunfen 1 ; Zhong, Ruqing 1 ; Zhou, Miao 3 ; Li, Kai 1 ; Lv, Huiyuan 2 ; Wang, Huixin 1 ; Xu, Ye 1 ; Liu, Dadan 1 ; Ma, Qiugang 2 ; Chen, Liang 1 ; Zhang, Hongfu 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Anim Sci, State Key Lab Anim Nutr & Feeding, Key Lab Anim Nutr & Feed Sci,Minist Agr & Rural Af, Beijing 100193, Peoples R China
2.China Agr Univ, Coll Anim Sci & Technol, Beijing 100193, Peoples R China
3.Hunan Agr Univ, Coll Anim Sci & Technol, Changsha 410128, Peoples R China
关键词：
baicalin;
期刊名称：ADVANCED SCIENCE （ 影响因子：14.1； 五年影响因子：15.6 ）
ISSN：
年卷期： 2025 年 12 卷 21 期
页码：
收录情况： SCI
摘要： Baicalin has been widely used for its anti-inflammatory pharmacological properties, yet its effects on bacterial intestinal inflammation and the mechanisms remain unclear. This study revealed that baicalin alleviates bacterial intestinal inflammation through regulating macrophage polarization and increasing Lactobacillus amylovorus abundance in colon. Specifically, transcriptomic analysis showed that baicalin restored Escherichia coli-induced genes expression changes including T helper cell 17 differentiation-related genes, macrophage polarization related genes, and TLR/IRF/STAT signaling pathway. Subsequent microbial and non-targeted metabolomic analysis revealed that these changes may be related to the enhancement of Lactobacillus amylovorus and the upregulation of its metabolites including chrysin, lactic acid, and indoles. Furthermore, whole-genome sequencing of Lactobacillus amylovorus provided insights into its functional potential and metabolic annotations. Lactobacillus amylovorus supplementation alleviates Escherichia coli-induced intestinal inflammation in mice and similarly inhibited M1 macrophage polarization through TLR4/IRF/STAT pathway. Additionally, baicalin, Lactobacillus amylovorus, or chrysin alone could regulate macrophage polarization, highlighting their independent anti-inflammatory potential. Notably, this study revealed that baicalin alleviates intestinal inflammation through TLR4/IRF/STAT pathway and increasing Lactobacillus amylovorus abundance and the synthesis of chrysin. These findings provide new insights into the therapeutic potential of baicalin and Lactobacillus amylovorus in preventing and treating intestinal inflammation, offering key targets for future interventions.
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