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Abstract Title:

Cardamonin inhibits the proliferation and metastasis of non-small-cell lung cancer cells by suppressing the PI3K/Akt/mTOR pathway.

Abstract Source:

Anticancer Drugs. 2019 Mar ;30(3):241-250. PMID: 30640793

Abstract Author(s):

Xiaoshu Zhou, Rui Zhou, Qianwen Li, Xiaohua Jie, Jiaxin Hong, Yan Zong, Xiaorong Dong, Sheng Zhang, Zhenyu Li, Gang Wu

Article Affiliation:

Xiaoshu Zhou

Abstract:

Cardamonin, a natural chalcone compound, has been reported to exert anticancer effects in several cancers. However, the specific pharmacological actions of cardamonin on human non-small-cell lung cancer (NSCLC) and the potential mechanisms still remain obscure. Here, we investigated the antineoplastic role of cardamonin in NSCLC both in vitro and in vivo. The proliferation of five NSCLC cell lines was inhibited in a dose-dependent and time-dependent manner with cardamonin treatment. In A549 and H460 cells, cardamonin induced apoptosis by activating caspase-3, upregulating Bax, and downregulating Bcl-2. In addition, cardamonin arrested cells in the G2/M phase and inhibited the expression levels of cyclin D1/CDK4. Moreover, cell migration and invasion were suppressed by reversing epithelial-mesenchymal transition with cardamonin treatment. Further study showed that cardamonin reduced the phosphorylation levels of the downstream effectors of phosphoinositide 3-kinase (PI3K), including protein kinase-B (Akt/PKB) and mammalian target of rapamycin (mTOR). Moreover, in the H460 xenograft model, cardamonin significantly retarded tumor growth. Also, in tumor tissues, we found that cardamonin treatment decreased the expression rates of Ki-67, p-Akt, and p-mTOR. These data suggest that cardamonin suppressed NSCLC cell proliferation and inhibited metastasis partly by restraining the PI3K/Akt/mTOR pathway and it might be an effective therapeutic compound for NSCLC in the future.

Study Type : In Vitro Study

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