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Abstract Title:

Curcumin Suppresses Lung Cancer Stem Cells via Inhibiting Wnt/β-catenin and Sonic Hedgehog Pathways.

Abstract Source:

Phytother Res. 2017 Feb 15. Epub 2017 Feb 15. PMID: 28198062

Abstract Author(s):

Jian-Yun Zhu, Xue Yang, Yue Chen, Ye Jiang, Shi-Jia Wang, Yuan Li, Xiao-Qian Wang, Yu Meng, Ming-Ming Zhu, Xiao Ma, Cong Huang, Rui Wu, Chun-Feng Xie, Xiao-Ting Li, Shan-Shan Geng, Jie-Shu Wu, Cai-Yun Zhong, Hong-Yu Han

Article Affiliation:

Jian-Yun Zhu

Abstract:

Cancer stem cells (CSCs) are highly implicated in the progression of human cancers. Thus, targeting CSCs may be a promising strategy for cancer therapy. Wnt/β-catenin and Sonic Hedgehog pathways play an important regulatory role in maintaining CSC characteristics. Natural compounds, such as curcumin, possess chemopreventive properties. However, the interventional effect of curcumin on lung CSCs has not been clarified. In the present study, tumorsphereformation assay was used to enrich lung CSCs from A549 and H1299 cells. We showed that the levels of lung CSC markers (CD133, CD44, ALDHA1, Nanog and Oct4) and the number of CD133-positive cells were significantly elevated in the sphere-forming cells. We further illustrated that curcumin efficientlyabolished lung CSC traits, as evidenced by reduced tumorsphere formation, reduced number of CD133-positive cells, decreased expression levels of lung CSC markers, as well as proliferation inhibition and apoptosis induction. Moreover, we demonstrated that curcumin suppressed the activation of both Wnt/β-catenin and Sonic Hedgehog pathways. Taken together, our data suggested that curcumin exhibited its interventional effect on lung CSCs via inhibition of Wnt/β-catenin and Sonic Hedgehog pathways. These novel findings could provide new insights into the potential therapeutic application of curcumin in lung CSC elimination and cancer intervention. Copyright © 2017 John Wiley&Sons, Ltd.

Study Type : In Vitro Study

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