Besides, compound 9g exhibited cholinesterase inhibitory activity, with its IC50 values of 0.86 μM and 0.51 μM for acetylcholinesterase and butyrylcholinesterase, respectively. In addition, compound 9g showed good anti-oxidation effect with oxygen radical absorbance capacity (ORAC) value of 2.29. Conclusions Compound 9g was found to be a potentmulti-target-directed agent for Alzheimer'sdisease. General
背景 阿尔茨海默氏病(AD)是一种进行性神经退行性脑部疾病,其特征在于痴呆,认知障碍和记忆力减退。不同的因素都与AD的发展,如增加的水平β淀粉样蛋白(β),乙酰胆碱,金属离子解除管制,超磷酸化的tau蛋白,和氧化应激。 方法 使用了下列方法:1的有机合成ħ -phenanthro [9,10- d ]咪唑衍生物,抑制自介导的和金属诱导A的β 1-42聚集,乙酰胆碱酯酶和丁酰胆碱酯酶抑制研究,抗氧化活性研究,CD,MTT分析,透射电子显微镜,斑点图分析,凝胶电泳,蛋白质印迹和分子对接研究。 结果 我们合成并表征了一种新型的1 H-菲[9,10- d ]咪唑衍生物作为AD治疗的多功能剂。我们的研究结果表明,大多数这些衍生物表现出强烈的一个β聚集抑制作用。化合物9克有74%A β 1-42聚集抑制在10μM浓度的效果,其IC 50为自感应甲μM6.5的值β 1-42聚集。该化合物还显示的金属介导的(铜很好的抑制作用2
Stabilization of G-Quadruplex DNA by Highly Selective Ligands via Click Chemistry
作者:Adam D. Moorhouse、Ana Mafalda Santos、Mekala Gunaratnam、Michael Moore、Stephen Neidle、John E. Moses
DOI:10.1021/ja0661919
日期:2006.12.1
A series of G-quadruplex stabilizing compounds have been prepared via click chemistry employing the Cu(I)-catalyzed Huisgen reaction. These compounds were shown to bind tightly to G-quadruplex DNA even in the presence of competing high concentrations of duplex DNA. Furthermore, a modified TRAP assay has shown that some of these compounds also inhibit telomerase at low micromolar concentration.