Article Publish Status: FREE
Abstract Title:

Arctigenin inhibits STAT3 and exhibits anticancer potential in human triple-negative breast cancer therapy.

Abstract Source:

Oncotarget. 2017 Jan 3 ;8(1):329-344. PMID: 27861147

Abstract Author(s):

Tingting Feng, Wei Cao, Wanxiang Shen, Liang Zhang, Xinsheng Gu, Yang Guo, Hsiang-I Tsai, Xuewen Liu, Jian Li, Jingxuan Zhang, Shan Li, Fuyun Wu, Ying Liu

Article Affiliation:

Tingting Feng


Triple-negative breast cancers (TNBCs) are the most aggressive and hard-to-treat breast tumors with poor prognosis, and exploration for novel therapeutic drugs is impending. Arctigenin (Atn), a bioactive lignan isolated from seeds of Arctium lappa L, has been reported to inhibit many cancer types; however, the effect of Atn on TNBC remains unclear. In this study, we demonstrated that Atn decreased proliferation, and induced apoptosis in TNBC cells. Furthermore, we explored the underlying mechanism of Atn inhibition on TNBC cells. Computational docking and affinity assay showed that Atn bound to the SH2 domain of STAT3. Atn inhibited STAT3 binding to genomic DNA by disrupting hydrogen bond linking between DNA and STAT3. In addition, Atn augmented Taxotere®-induced TNBC cell cytotoxicity. TNBC xenograft tests also confirmed the antitumor effect of Atn in vivo. These characteristics render Atn as a promising candidate drug for further development and for designing new effective STAT3 inhibitors.

Study Type : Animal Study, In Vitro Study

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