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- W2892586175 abstract "Dictamnine (DTM) is a natural alkaloid isolated from the root of Dictamnus dasycarpus Turcz and has been shown to exhibit multiple biological functions, including anti-inflammatory, antifungal, anti-angiogenic and anticancer activity. However, the mechanisms by which dictamnine inhibits tumor growth are not fully understood. In this study, we investigated the effectiveness of dictamnine as a treatment for cancer and to identify the underlying mechanisms of its anticancer activity. Here, dictamnine showed the potent inhibitory activity against HIF-1α and Slug activation induced by hypoxia in various human cancer cell lines. This compound markedly decreased the hypoxia-induced accumulation of HIF-1α and Slug protein in a dose-dependent manner. Further analysis revealed that dictamnine inhibited HIF-1α protein synthesis, without affecting its degradation. Our results demonstrated that dictamnine reduced HIF-1α protein synthesis by downregulating the mTOR/p70S6K/eIF4E and MAPK pathways, and reduced the expression of Slug by inhibiting the GSK-3β/Slug signaling pathway. Moreover, epithelial-mesenchymal transition (EMT) was inhibited in dictamnine-treated tumors by downregulation of HIF-1α and Slug, as reflected by the upregulation of E-cadherin and Occludin, and the downregulation of N-cadherin and Vimentin. Phenomenological experiments showed that dictamnine reduced migration and invasion, inhibited HCT116 cell proliferation and promoted HCT116 cell apoptosis by downregulating HIF-1α and Slug. In vivo studies further confirmed that dictamnine treatment caused significant inhibition of tumor growth in a xenograft tumor model. These findings suggest that dictamnine is a potent cancer inhibitor, providing a rationale for anticancer pathway-targeted therapy." @default.
- W2892586175 created "2018-10-05" @default.
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- W2892586175 date "2018-12-01" @default.
- W2892586175 modified "2023-10-14" @default.
- W2892586175 title "Dictamnine promotes apoptosis and inhibits epithelial-mesenchymal transition, migration, invasion and proliferation by downregulating the HIF-1α and Slug signaling pathways" @default.
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- W2892586175 doi "https://doi.org/10.1016/j.cbi.2018.09.014" @default.
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