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ECB-ART-49190
Pharmazie 2021 May 01;765:208-214. doi: 10.1691/ph.2021.1363.
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CN-3 induces mitochondrial apoptosis in glioma via Ros-mediated PI3K/AKT pathway.

Xue YY , Lu YY , Sun GQ , Fang F , Ji YQ , Tang HF , Qiu PC , Cheng G .


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Recently we isolated CN-3, a new asterosaponin from starfish Culcita novaeguineae, and reported that asterosaponin arrests glioma cell cycle via SCUBE3. However, the multiple mechanisms underlying CN-3 anti-glioma action remains poorly known. Thus, the focus of this study was to evaluate the inhibitory effect of CN-3 on human glioma cells and its underlying molecular mechanisms. U87 and U251 cells were incubated with various concentrations of CN-3, and CCK-8, transmission electron microscopy, ICELLigence, TUNEL, flow cytometry, N-acetyl-<small>L</small>-cysteine, and western blot were conducted. As a result, it was found that CN-3 significantly inhibited U87 and U251 cell viability and proliferation in a time- and dose- dependent manner, and also induced mitochondrial apoptosis. Furthermore, we detected that CN-3 downregulated PI3K, P-Akt, AKT and BCL-2, and upregulated cytochrome C and BAX in U87 and U251 cells. Moreover, ROS triggered the inhibition and cell apoptosis for CN-3 via inactivation of P-Akt and activation of cytochrome C. In conclusion, these findings suggest that CN-3 may be a promising candidate for the development of a therapy of glioma.

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