Toxicarioside O Inhibits Cell Proliferation and Epithelial-Mesenchymal Transition by Downregulation of Trop2 in Lung Cancer Cells.

Toxicarioside O Inhibits Cell Proliferation and Epithelial-Mesenchymal Transition by Downregulation of Trop2 in Lung Cancer Cells.
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Toxicarioside O 通过下调肺癌细胞中的 Trop2 抑制细胞增殖和上皮间质转化

DOI:
10.3389/fonc.2020.609275
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发表时间:
2020
影响因子:
4.7
通讯作者:
Huang YH
Huang YH
中科院分区:
医学3区
文献类型:
--
作者:
Zheng WP;Huang FY;Dai SZ;Wang JY;Lin YY;Sun Y;Tan GH;Huang YH

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毒蝎苷O(Toxicarioside O,TCO)是从见血封喉(Antiaris fixicaria)中提取的天然产物,具有良好的抗癌活性。本研究旨在探讨TCO对肺癌细胞增殖和上皮间质转化(EMT)的影响及其分子机制。在此,我们表明TCO在体外和体内均抑制肺癌细胞的增殖。我们的研究结果表明,TCO诱导肺癌细胞凋亡。此外,我们发现TCO抑制EMT程序和抑制细胞迁移在体外。从机制上讲,TCO降低滋养层细胞表面抗原2(Trop 2)的表达,导致PI 3 K/Akt通路和EMT程序的抑制。Trop 2的过表达挽救了TCO诱导的细胞增殖和EMT抑制。我们的研究结果表明,TCO显着抑制肺癌细胞的细胞增殖和EMT,并为其药物开发提供指导。
Toxicarioside O (TCO), a natural product derived from Antiaris toxicaria, has been identified to be a promising anticancer agent. In this study, we aimed to investigate the effect of TCO on the proliferation and epithelial-mesenchymal transition (EMT) of lung cancer cells and its molecular mechanisms. Here, we indicated that TCO inhibits the proliferation of lung cancer cells both in vitro and in vivo. Our results demonstrated that TCO induces apoptosis in lung cancer cells. Moreover, we found that TCO suppresses EMT program and inhibits cell migration in vitro. Mechanistically, TCO decreases the expression of trophoblast cell surface antigen 2 (Trop2), resulting in inhibition of the PI3K/Akt pathway and EMT program. Overexpression of Trop2 rescues TCO-induced inhibition of cell proliferation and EMT. Our findings demonstrate that TCO markedly inhibits cell proliferation and EMT in lung cancer cells and provides guidance for its drug development.
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