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Isoindolone derivative QSN-10c induces leukemic cell apoptosis and suppresses angiogenesis via PI3K/AKT signaling pathway inhibition

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文摘 Aim: 2-(4,6-Dimethoxy-1,3-dioxoisoindolin-2-yl) ethyl 2-chloroacetate (QSN-10c) is one of isoindolone derivatives with antiproliferative activity against human umbilical vein endothelial cells (HUVECs). The aim of this study was to investigate its antitumor activity in vitro and anti-angiogenic effects in vitro and in vivo. Methods: K562 leukemic cells and HUVECs were used for in vitro studies. Cell viability was examined using MTT assay. Cell apoptosis and mitochondrial transmembrane potential (Δψm) were detected with flow cytometry. Tube formation and migration of HUVECs were studied using two-dimensional Matrigel assay and wound-healing migration assay, respectively. VEGF levels were analyzed with RT-PCR and Western blotting. A zebrafish embryo model was used for in vivo anti-angiogenic studies. The molecular mechanisms for apoptosis in K562 cells and antiangiogenesis were measured with Western blotting. Results: In antitumor activity studies, QSN-10c suppressed the viability of K562 cells and induced apoptosis in dose- and timedependent manners. Furthermore, QSN-10c dose-dependently decreased the Δψm in K562 cells, increased the release of cytochrome c and the level of Bax, and decreased the level of Bcl-2, suggesting that QSN-10c-induced apoptosis of K562 cells was mediated via the mitochondrial apoptotic pathway. In anti-angiogenic activity studies, QSN-10c suppressed the viability of HUVECs and induced apoptosis in dose dependent manners. QSN-10c treatment did not alter the Δψm in HUVECs, but dose-dependently inhibited the expression of VEGF, inhibited the tube formation and cell migration in vitro, and significantly suppressed the number of ISVs in zebrafish embryos in vivo. Furthermore, QSN-10c dose-dependently suppressed the phosphorylation of AKT and GSK3β in both HUVECs and K562 cells. Conclusion: QSN-10c is a novel antitumor compound that exerts both antitumor and anti-angiogenic effects via inhibiting the PI3K/ AKT/GSK3β signaling pathway.
来源 Acta Pharmacologica Sinica ,2014,35(5):625-635 【核心库】
DOI 10.1038/aps.2013.194
关键词 isoindolone ; anticancer drug ; leukemia ; zebrafish ; angiogenesis ; apoptosis ; AKT ; GSK3β
地址

1. Department of Pharmacy, General Hospital of Shenyang Military Area Command, Shenyang, 110840  

2. Shenyang Pharmaceutical University, Shenyang, 110016

语种 英文
文献类型 研究性论文
ISSN 1671-4083
学科 医药、卫生;基础医学
文献收藏号 CSCD:5142653

参考文献 共 47 共3页

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