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Abstract Title:

Cardioprotective effect of paeonol against epirubicin-induced heart injury via regulating miR-1 and PI3K/AKT pathway.

Abstract Source:

Chem Biol Interact. 2018 Apr 25 ;286:17-25. Epub 2018 Mar 2. PMID: 29505745

Abstract Author(s):

Jing Wu, Chao Sun, Ruoyi Wang, Juan Li, Meng Zhou, Mi Yan, Xia Xue, Chuanxin Wang

Article Affiliation:

Jing Wu

Abstract:

Cardiotoxicity is a dose-dependent side effect of epirubicin that restricts its clinical utility in cancer chemotherapy. Paeonol is an active constituent with various biological activities, including the protection of antineoplastic-induced toxicities. In the present study, we investigated the protective effect of paeonol on epirubicin-induced cardiotoxicity and explored the underlying mechanism. A series of methods were used including a MTT assay, flow cytometry, echocardiography, TUNEL staining, a dual-luciferase reporter assay, immunofluorescence, RT-PCR and Western blotting. The results indicate that paeonol improves cardiac dysfunction, relieves histopathological changes, alleviates inflammation, reduces myocardial apoptosis and increases autophagy. Further studies suggest that paeonol upregulates the decreased expression of miR-1 caused by epirubicin and thus inhibits the activation of PI3K/AKT/mTOR and NF-κB pathways. In conclusion, paeonol effectively ameliorates myocardial injury by increasing miR-1 expression to suppress the PI3K/AKT/mTOR and NF-kB signalling pathways.

Study Type : In Vitro Study

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