Target Elucidation by Cocrystal Structures of NADH-Ubiquinone Oxidoreductase of <i>Plasmodium falciparum</i> (<i>Pf</i>NDH2) with Small Molecule To Eliminate Drug-Resistant Malaria
作者:Yiqing Yang、You Yu、Xiaolu Li、Jing Li、Yue Wu、Jie Yu、Jingpeng Ge、Zhenghui Huang、Lubin Jiang、Yu Rao、Maojun Yang
DOI:10.1021/acs.jmedchem.6b01733
日期:2017.3.9
Drug-resistant malarial strains have been continuously emerging recently, which posts a great challenge for the global health. Therefore, new antimalarial drugs with novel targeting mechanisms are urgently needed for fighting drug-resistant malaria. NADH-ubiquinone oxidoreductase of Plasmodium falciparum (PfNDH2) represents a viable target for antimalarial drug development. However, the absence of
最近,耐药性疟疾菌株不断出现,这对全球健康构成了巨大挑战。因此,迫切需要具有新颖靶向机制的新抗疟药来对抗耐药性疟疾。恶性疟原虫的NADH-泛醌氧化还原酶(Pf NDH2)代表了抗疟疾药物开发的可行目标。但是,缺乏有关Pf NDH2的结构信息限制了合理的药物设计和进一步的开发。在这里,我们首次报道了Af-,NADH-和RYL-552(一种新的抑制剂)结合状态的Pf NDH2蛋白的高分辨率晶体结构。该Pf的NDH2抑制剂通过潜在的变构机制,对体外耐药菌和体内寄生虫感染的小鼠均表现出出色的效力。此外,发现该抑制剂可以与二氢青蒿素(DHA)协同地结合使用。这些发现不仅对于基于疟疾Pf NDH2蛋白的药物开发很重要,而且对其他含有NDH2的致病微生物(如结核分枝杆菌)也可能具有广泛的意义。