Clinopodium chinense Kuntze ameliorates dextran sulfate sodium-induced ulcerative colitis in mice by reducing systematic inflammation and regulating metabolism

溃疡性结肠炎 药理学 炎症 免疫印迹 结肠炎 消炎药 传统医学 医学 体内 中医药 化学 免疫学 生物 生物化学 病理 替代医学 生物技术 基因 疾病
作者
Yumeng Wang,Zhutao Shao,Ce Song,Hongxu Zhou,Jiaming Zhao,Kunqi Zong,Guangxin Zhou,Dali Meng
出处
期刊:Journal of Ethnopharmacology [Elsevier]
卷期号:309: 116330-116330 被引量:6
标识
DOI:10.1016/j.jep.2023.116330
摘要

Clinopodium chinense Kuntze (CC), traditional Chinese medicine with anti-inflammatory, anti-diarrheal, and hemostatic activities, has been used to treat dysentery and bleeding diseases for thousands of years, which are similar to the symptoms of ulcerative colitis (UC). To obtain a novel treatment for UC, an integrated strategy was developed in this study to investigate the effect and mechanism of CC against UC. The chemical characterization of CC was scanned by UPLC-MS/MS. Network pharmacology analysis was performed to predict the active ingredients and pharmacological mechanisms of CC against UC. Further, the results of network pharmacology were validated using LPS-induced RAW 264.7 cells and DSS-induced UC mice. The production of pro-inflammatory mediators and biochemical parameters was tested using the ELISA kits. The expression of NF-κB, COX-2, and iNOS proteins was evaluated using Western blot analysis. Body weight, disease activity index, colon length, histopathological examination, and metabolomics analysis in colon tissues were carried out to confirm the effect and mechanism of CC. Based on the chemical characterization and literature collection, a rich database of ingredients in CC was constructed. Network pharmacology analysis provided five core components as well as revealed that the mechanism of CC against UC was highly related to inflammation, especially the NF-κB signaling pathway. In vitro experiments showed CC could inhibit inflammation by LPS-TLR4-NF-κB-iNOS/COX-2 signaling pathway in RAW264.7 cells. Meanwhile, in vivo experimental results proved that CC significantly alleviated pathological features with increased body weight and colonic length, decreased DAI and oxidative damage, as well as mediated inflammatory factors like NO, PGE2, IL-6, IL-10, and TNF-ɑ. In addition, colon metabolomics analysis revealed CC could restore the abnormal endogenous metabolite levels in UC. 18 screened biomarkers were further enriched in four pathways including Arachidonic acid metabolism, Histidine metabolism, Alanine, aspartate and glutamate metabolism as well as the Pentose phosphate pathway. This study demonstrates that CC could alleviate UC by reducing systematic inflammation and regulating metabolism, which is beneficial for providing scientific data for the development of UC treatment.
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