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Cynarin ameliorates dextran sulfate sodium-induced acute colitis in mice through the STAT3/NF-κB pathway. | LitMetric

Cynarin ameliorates dextran sulfate sodium-induced acute colitis in mice through the STAT3/NF-κB pathway.

Immunopharmacol Immunotoxicol

Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Fisheries College of Jimei University, Xiamen, PR China.

Published: February 2024

Objective: Cynarin is a derivative of hydroxycinnamic acid presented in various medicinal plants, such as L. and L. To date, the antioxidant and antihypertensive activities of cynarin have been reported. However, whether cynarin has a therapeutic impact on ulcerative colitis (UC) is unclear. Therefore, the aim of this study was to explore the potential effect of cynarin on dextran sulfate sodium (DSS)-induced acute colitis and on lipopolysaccharide (LPS)/interferon-γ (IFN-γ)-induced RAW264.7 and J774A.1 cellular inflammation model .

Methods And Results: In this study, we investigated that cynarin alleviated clinical symptoms in animal models, including disease activity index (DAI) and histological damage. Furthermore, cynarin can attenuate colon inflammation through decreasing the proportion of neutrophils in peripheral blood, reducing the infiltration of neutrophils, and macrophages in colon tissue, inhibiting the release of pro-inflammatory cytokines and suppressing the expression of STAT3 and p65. In cellular inflammation models, cynarin inhibited the expression of M1 macrophage markers, such as TNF-α, IL-1β, and iNOS. Besides, cynarin suppressed the expression of STAT3 and p65 as well as the phosphorylation of STAT3, p65. Cynarin inhibited the polarization of RAW264.7 and J774A.1 cells toward M1 and alleviated LPS/IFN-γ-induced cellular inflammation.

Conclusion: Considering these results, we conclude that cynarin mitigates experimental UC partially through inhibiting the STAT3/NF-кB signaling pathways and macrophage polarization toward M1. Accordingly, cynarin might be a potential and effective therapy for UC.

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Source
http://dx.doi.org/10.1080/08923973.2023.2281281DOI Listing

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