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Article Publish Status: FREE
Abstract Title:

Bufalin inhibits gastric cancer invasion and metastasis by down-regulating Wnt/ASCL2 expression.

Abstract Source:

Oncotarget. 2018 May 4 ;9(34):23320-23333. Epub 2018 Jan 11. PMID: 29805736

Abstract Author(s):

Jie Wang, Han Cai, Yue Xia, Shiying Wang, Likai Xing, Chao Chen, Yong Zhang, Jie Xu, Peihao Yin, Yiming Jiang, Ronghua Zhao, Qingshong Zuo, Teng Chen

Article Affiliation:

Jie Wang

Abstract:

Achaete-scute-like 2 (ASCL2) is a transcription factor containing a basic helix-loop-helix (bHLH) domain and is a downstream target of Wnt signaling in intestinal stem cells. Bufalin is the primary active ingredient in Chan Su, a traditional Chinese medicine obtained from the skin and parotid venom glands of toads. The purpose of this study was to research the anti-invasion and anti-metastasis activity of bufalin in gastric cancer and to identify the potential mechanism. Bufalin inhibited gastric cancer cell invasion and metastasis, suppressed cancer cell colony formation, and inhibited the growth of subcutaneous xenografted tumors in nude mice. Furthermore, bufalin inhibited ASCL2 expression and down-regulated the expression of invasion-related genes such as MMP2, MMP9, and vimentin, thereby suppressing epithelial-mesenchymal transition (EMT) in gastric cancer. A Wnt signaling inhibitor (XAV939) down-regulated invasion and the expression of ASCL2,β-catenin, and vimentin but up-regulated E-cadherin expression. In nude mice, bufalin inhibited the tumorigenic behavior of gastric cancer cells, induced cancer cell apoptosis, and regulated invasion-related gene expression. Together, our results suggest that bufalin arrests invasion and metastasisand that its mechanism of action may involve down-regulating Wnt/ASCL2 expression.

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