Anti-acute myeloid leukemia activity of 2-chloro-3-alkyl-1,4-naphthoquinone derivatives through inducing mtDNA damage and GSH depletion
作者:Kun Li、Kun Yang、Lifang Zheng、Yuanyuan Li、Qi Wang、Ruili Lin、Dian He
DOI:10.1016/j.bmc.2018.07.010
日期:2018.8
the anti-acute myeloid leukaemia agents. The compound 9b (2-chloro-3-ethyl-5,6,7-trimethoxy-1,4-naphthoquinone) was the most potent toward HL-60 leukaemia cells. In mechanistic study for 9b, the protein levels of mtDNA-specific DNA polymerase γ (poly-γ) and mtDNA transcription factor A (mt-TFA) were decreased after the 24 h treatment, showing the occurrence of mtDNA damage. And 9b triggered cell cycle
合成了2-氯-3-烷基-1,4-萘醌衍生物,并将其作为抗急性髓样白血病药物进行了测试。化合物9b(2-氯-3-乙基-5,6,7-三甲氧基-1,4-萘醌)对HL-60白血病细胞最有效。在9b的机理研究中,处理24小时后mtDNA特异性DNA聚合酶γ(poly-γ)和mtDNA转录因子A(mt-TFA)的蛋白质水平降低,表明发生了mtDNA损伤。和9b中触发细胞周期停滞在伴随G2 / M期的二次块其中有一个直接链接到mtDNA损伤的过程中S期。线粒体膜电位和ATP的耗散也进行了。另一方面,9b促进了ROS的生成,并导致细胞内GSH氧化为GSSG。此过程与9b和GSH之间加合物的形成相关联,通过UV-Vis光谱和HRMS分析检测到。丁硫氨酸亚砜肟对GSH的消耗会增加ROS的水平并产生更高的细胞毒性,这表明GSH参与了9b的抗白血病机制。总之,我们的结果为2-氯-1,4-萘醌和9b衍生物的分子机理