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Article Publish Status: FREE
Abstract Title:

Cucurbitacin B inhibits proliferation and induces apoptosis via STAT3 pathway inhibition in A549 lung cancer cells.

Abstract Source:

Mol Med Rep. 2014 Dec ;10(6):2905-11. Epub 2014 Sep 18. PMID: 25242136

Abstract Author(s):

Meng Zhang, Zhi-Gang Bian, Yi Zhang, Jia-He Wang, Liang Kan, Xin Wang, Hui-Yan Niu, Ping He

Article Affiliation:

Meng Zhang

Abstract:

Natural products are a great source of cancer chemotherapeutic agents. The present study was conducted to investigate whether cucurbitacin B (CuB), one of the most potent and widely used cucurbitacins, inhibits proliferation and induces apoptosis in the A549 lung cancer cell line. Furthermore, CuB induced apoptosis of A549 cells in a -concentration-dependent manner, as determined by fluorescence microscopy, flow cytometry and transmission electron microscopy. The present study also demonstrated that CuB dose-dependently inhibited lung cancer cell proliferation, with cell cycle inhibition and cyclin B1 downregulation. Apoptosis induced by CuB was shown to be associated with cytochrome c release, B-cell lymphoma 2 downregulation and signal transducer and activator of transcription 3 pathway inhibition. CuB may prove to be a useful approach for the chemotherapy of lung cancer.

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Sayer Ji
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