Abstract
Epithelial-to-mesenchymal transition (EMT) is a process by which epithelial cells acquire mesenchymal properties, generating metastases. Dihydroartemisinin (DHA) exhibits potent anti-cancer activities. CMTs is a potential suitable model for studies in human breast cancer research. In the present study, we separated DHA-untreated cells from CMTs cells to be a control group, the rest of the CMTs cells treated by DHA which were composed of three concentrations 5,10 as well as 20 μM. After that we cultivate the cells severally under the condition of 24, 48 and 72 h at 37 °C. CMTs cells were evaluated by Cell viability assay, Wound healing assay, Invasion assay and RT-PCR analysis for the expression of Slug, ZEB1, ZEB2 and Twist. Our results showed that DHA increased the inhibitory rate of CMTs cell and restrain TGF-β1-induced migration and invasion of cells in a time and concentration reliant manner efficaciously. Our result also show DHA inhibits the expression of Slug, ZEB1, ZEB2 and Twist at the mRNA in vitro, the media concentration DHA (10 μM) decreased the expression level of the Slug, ZEB1, ZEB2 mRNA significantly. In conclusion, DHA inhibits canine mammary tumours cells migration and invasiveness by regulating the expression of EMT-related genes.
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