Abstract:
:The present study investigated the improving effect of cucurbitacin B on liver fibrosis induced by concanavalin A in mice and explored its possible mechanism. AST, ALT and TB were detected by kits. ELISA was performed to detect the levels of IL 5, IL 6, IL 13 and TNF-α in serum. Haematoxylin-eosin (HE) staining and Masson's trichrome staining were used to evaluate pathological changes. Western blotting was performed to observe expression levels of sirtuin (SIRT) 1, insulin-like growth factor binding protein-related protein 1 (IGFBPrP1) and TGF β1. The activity of SIRT 1 also was detected. Results showed that cucurbitacin B could effectively improve the abnormal liver function, inhibit liver fibrosis and suppress releases of inflammatory factors in mice induced by concanavalin A. Furthermore, cucurbitacin B could down-regulate the expressions of TGF β1 and IGFBPrP1, increase the expression and activity of SIRT 1. Interestingly, when SIRT1 activity was inhibited by EX 527, a selective inhibitor of SIRT 1, the preventive effect of cucurbitacin B was significantly attenuated. Taken together, the above results showed that cucurbitacin B could significantly suppress releases of inflammatory cytokines and improve liver fibrosis induced by concanavalin A in mice, and those may be achieved through SIRT1/IGFBPrP1/TGF β1 axis.
journal_name
Basic Clin Pharmacol Toxicoljournal_title
Basic & clinical pharmacology & toxicologyauthors
Yang L,Ao Q,Zhong Q,Li W,Li Wdoi
10.1111/bcpt.13446subject
Has Abstractpub_date
2020-11-01 00:00:00pages
371-379issue
5eissn
1742-7835issn
1742-7843journal_volume
127pub_type
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