Abstract
ABSTRACT Cinobufagin has inhibitory effects on various tumors, but there are few studies on gynecological tumors. This study explored the function and molecular mechanism of cinobufagin in endometrial cancer (EC). Different concentrations of cinobufagin treated EC cells (Ishikawa and HEC-1). Clone formation, methyl thiazolyl tetrazolium (MTT), flow cytometry, and transwell assays were used to detect malignant behaviors. A Western blot assay was performed to detect protein expression. Cinobufacini was sensitive to the inhibition of EC cell proliferation in a time- and concentration-dependent manner. Meanwhile, EC cell apoptosis was induced by cinobufacini. In addition, cinobufacini impaired the invasive and migratory abilities of EC cells. More importantly, cinobufacini blocked the nuclear factor kappa beta (NF-κB) pathway in EC by inhibiting p-IkBα and p-p65 expression. Cinobufacini suppresses malignant behaviors of EC by blocking the NF-κB pathway.
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