Qishun Geng , Zhaoran Wang , Tong Shi , Chaoying Wen , Jiahe Xu , Yi Jiao , Wenya Diao , Jienan Gu , Zihan Wang , Lu Zhao , Tingting Deng , Cheng Xiao
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引用次数: 0
Abstract
Background
Rheumatoid arthritis (RA) is one of the most common autoimmune diseases, affecting multiple systems in the body. Cannabidiol (CBD) is one of the most medically valuable active ingredients in cannabis. At present, CBD has been shown to alleviate the progression of RA; however, owing to its multiple targets, the mechanism of CBD is not clear.
Methods
On the basis of the gut microbiota, we explored the mechanism by which CBD inhibits RA progression. Metagenomic and nontargeted metabolomic analyses were used to determine the changes in the intestinal ecology and plasma metabolites of collagen-induced arthritis (CIA) rats after CBD treatment.
Results
CBD reversed gut dysbiosis in CIA rats, notably altering the abundances of Allobaculum_unclassified, Allobaculum_fili, and Prevotella_unclassified. In addition, metabolomic analysis confirmed that CBD increased the contents of butyric acid and L-carnitine. Allobaculum could produce butyric acid and Prevotella could accelerate the metabolism of L-carnitine. In addition, in vitro experiments demonstrated that L-carnitine participated in the regulation of neutrophils, macrophages and RA-fibroblast-like synoviocytes (RA-FLSs), which was consistent with the synovial changes in CIA rats caused by CBD.
Conclusion
In summary, CBD increased the plasma contents of butyric acid and L-carnitine by altering the abundances of gut microbiota, thereby inhibiting inflammation in neutrophils, macrophages and RA-FLSs. Our study is the first to explain the mechanism by which CBD alleviates progression in CIA rats from the perspective of gut microbes and metabolites, providing new views into CBD mechanisms, which warrants clinical attention.
期刊介绍：
Phytomedicine is a therapy-oriented journal that publishes innovative studies on the efficacy, safety, quality, and mechanisms of action of specified plant extracts, phytopharmaceuticals, and their isolated constituents. This includes clinical, pharmacological, pharmacokinetic, and toxicological studies of herbal medicinal products, preparations, and purified compounds with defined and consistent quality, ensuring reproducible pharmacological activity. Founded in 1994, Phytomedicine aims to focus and stimulate research in this field and establish internationally accepted scientific standards for pharmacological studies, proof of clinical efficacy, and safety of phytomedicines.
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