New Disubstituted Quindoline Derivatives Inhibiting Burkitt’s Lymphoma Cell Proliferation by Impeding <i>c-MYC</i> Transcription
作者:Hui-Yun Liu、Ai-Chun Chen、Qi-Kun Yin、Zeng Li、Su-Mei Huang、Gang Du、Jin-Hui He、Li-Peng Zan、Shi-Ke Wang、Yao-Hao Xu、Jia-Heng Tan、Tian-Miao Ou、Ding Li、Lian-Quan Gu、Zhi-Shu Huang
DOI:10.1021/acs.jmedchem.7b00099
日期:2017.7.13
introducing the second cationic amino side chain and 5-N-methyl group based on a previous study of SYUIQ-5 (1) as c-MYC promoter G-quadruplex ligands. The in vitro evaluations showed that all new compounds exhibited higher stabilities and binding affinities, and most of them had better selectivity (over duplex DNA) for the c-MYC G-quadruplex compared to 1. Moreover, the new ligands prevented NM23-H2, a
在伯基特氏淋巴瘤的发病机理中,c-MYC癌基因被过度激活。靶向c-MYC抑制其转录活性已成为一种有效的抗癌策略。我们基于SYUIQ-5(1)作为c-MYC启动子G-四链体配体的先前研究,通过引入第二个阳离子氨基侧链和5- N-甲基合成了四个系列的双取代喹啉衍生物。在体外评价表明,所有的新化合物表现出更高的稳定性和结合亲和力,和其中大部分具有用于更好的选择性(超过双链体DNA)的c-MYC相比G-四链体1。此外,新的配体阻止了转录因子NM23-H2有效地与c-MYC G-四链体结合。进一步的研究表明,选定的配体7a4通过靶向启动子G-四链体并破坏RAJI细胞中的NM23-H2 / c-MYC相互作用而下调c-MYC转录。7a4可以通过细胞周期停滞和凋亡抑制Burkitt淋巴瘤细胞增殖,并抑制人类Burkitt淋巴瘤异种移植物中的肿瘤生长。