Albendazole exerts an anti-hepatocellular carcinoma effect through a WWOX-dependent pathway
Hepatocellular carcinoma (HCC) is the sixth most common cancer and the third most common cause of cancer-related deaths. The WW-domain containing oxidoreductase (WWOX) protein suppresses carcinogenesis and its absence is closely related to aggressive HCC phenotypes. In this study, by using SPR analysis, cell viability assay and xenograft mice models, we found that albendazole (ABZ), a safe and effective anthelmintic drug, exhibited the binding affinity with WWOX protein and potential inhibition effect on HCC cells in vitro and in vivo . Overexpression and knockdown of WWOX confirmed that the suppression of HCC by ABZ. Flow cytometric analysis, western blotting analysis and Co-IP were conducted to study the mechanism of ABZ. Our data showed that ABZ regulated the interaction between WWOX and its binding proteins including p53 and C-MYC. Furthermore, ABZ triggered p53-induced intrinsic apoptosis and suppressed EMT-mediated migration by C-MYC/Fibronectin axis. In addition, ∆NP73 expression was significantly inhibited by ABZ, which further sensitized p53-induced intrinsic apoptosis and cell cycle arrest. In summary, ABZ could suppress the proliferation and migration of HCC cells by regulating WWOX-dependent signaling pathway.
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