Xanthatin alleviates airway inflammation in asthmatic mice by regulating the STAT3/NF-κB signaling pathway

Here, we aimed to investigate the role of Xanthatin in asthma and its underlying mechanism. BALB/c mice were treated with ovalbumin (OVA) to establis a mouse model of asthma. Our results showed that OVA injection significantly increased inflammatory cell infiltration and goblet cell hyperplasia in lung issues, while Xanthatin treatment and STAT3 inhibitor C188-9 administration relieved these symptoms. Moreover, OVA-induced OVA-specific immunoglobulin E level in serum and the number of total cell, macrophages, lymphocytes, neutrophils, and eosinophils in bronchoalveolar lavage fluid (BALF) were markedly reduced by Xanthatin treatment and signal transducer and activator of transcription 3 (STAT3) inhibition. Additionally, Xanthatin treatment and STAT3 inhibition was also significantly decreased the levels of inflammatory cytokines in BALF in asthmatic mice. We further demonstrated that the STAT3/nuclear factor-kappaB (NF-κB) pathway was blocked by Xanthatin in asthmatic mice. Overall, we conclude that Xanthatin attenuates airway inflammation in asthmatic mice through blocking the STAT3/NFκB signaling pathway, indicating the potential of Xanthatin as a useful therapeutic agent for asthma.

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