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Background and purpose:  Verticillin A is a fungal epipolythiodioxopiperazine (ETP) metabolite that was isolated from  Amanita flavorubescens  Alk infected by Verticillium sp . It was previously proven to possess potent anti-tumor cell growth activity, and we have recently determined that verticillin A is a selective inhibitor of H3K9me3-specific histone methyltransferase. The objective of this study was to find out whether verticillin A is an effective agent for suppression of gastric and cervical tumor progression. Materials and methods: Wound healing and transwell assays was performed to evaluate the effect of verticillin A on hepatocyte growth factor (HGF)-induced AGS and HeLa cells migration and invasion in vitro. Western blot was used to detect signaling proteins verticillin A affected. Results: We determined that verticillin A effectively suppressed hepatocyte growth factor (HGF)-induced AGS and HeLa cells migration and invasion in vitro. At the molecular level, we demonstrated that verticillin A inhibited HGF-induced c-Met phosphorylation and repressed the expression of total c-Met protein in AGS and HeLa cells, resulting from reduced expression of fatty acid synthase. In addition, verticillin A could suppress c-Met downstream FAK/Src signaling pathways by impairing c-Met phosphorylation induced by HGF. Conclusion:  Our study demonstrated verticillin A inhibits the migration ability of human gastric cancer (AGS) cells and cervical cancer (HeLa) cells by targeting c-Met and its downstream FAK/Src signaling pathways, and suggested that verticillin A acts as a novel HGF/c-Met inhibitor by reducing expression of this receptor.

oncotargets and therapy

&lt;p&gt;Verticillin A suppresses HGF-induced migration and invasion via repression of the c-Met/FAK/Src pathway in human gastric and cervical cancer cells&lt;/p&gt;