Griffipavixanthone from Garcinia oblongifolia Champ Induces Cell Apoptosis in Human Non-Small-Cell Lung Cancer H520 Cells in Vitro

Molecules

Jun-Min Shi³  Hui-Juan Huang³  Sheng-Xiang Qiu²  Shi-Xiu Feng¹ 

[1] Laboratory of Southern Subtropical Plant Diversity, Shenzhen Fairy Lake Botanical Garden, Chinese Academy of Sciences, Shenzhen 518004, China;South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; E-Mail:;School of Life Sciences, South China Normal University, Guangzhou 510631, China; E-Mails:

关键词: griffipavixanthone;    H520 cells;    apoptosis;    caspase;    mitochondrial transmembrane potential;    ROS generation;   

DOI  :  10.3390/molecules19021422

来源: mdpi

【 摘 要 】

Griffipavixanthone (GPX) is a dimeric xanthone which was isolated in a systematic investigation of Garcinia oblongifolia Champ. In this study, we investigate the effect of GPX on cell proliferation and apoptosis on human Non-small-cell lung cancer (NSCLC) cells in vitro and determine the mechanisms of its action. GPX inhibited the growth of H520 cells in dose- and time-dependent manners, with IC₅₀ values of 3.03 ± 0.21 μM at 48 h. The morphologic characteristics of apoptosis and apoptotic bodies were observed by fluorescence microscope and transmission electron microscope. In addition, Annexin V/PI double staining assay revealed that cells in early stage of apoptosis were significantly increased upon GPX treatment dose-dependently. Rh123 staining assay indicated that GPX reduced the mitochondrial membrane potential. DCFH-DA staining revealed that intracellular ROS increased with GPX treatment. Moreover, GPX cleaved and activated caspase-3. In summary, this study showed that GPX inhibited H520 cell proliferation in dose- and time-dependent manner. Further mechanistic study indicated that GPX induced cell apoptosis through mitochondrial apoptotic pathway accompanying with ROS production. Our results demonstrate the potential application of GPX as an anti-non-small cell lung cancer agent.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.