作者:Beatriz Baragaña、Irene Hallyburton、Marcus C. S. Lee、Neil R. Norcross、Raffaella Grimaldi、Thomas D. Otto、William R. Proto、Andrew M. Blagborough、Stephan Meister、Grennady Wirjanata、Andrea Ruecker、Leanna M. Upton、Tara S. Abraham、Mariana J. Almeida、Anupam Pradhan、Achim Porzelle、María Santos Martínez、Judith M. Bolscher、Andrew Woodland、Torsten Luksch、Suzanne Norval、Fabio Zuccotto、John Thomas、Frederick Simeons、Laste Stojanovski、Maria Osuna-Cabello、Paddy M. Brock、Tom S. Churcher、Katarzyna A. Sala、Sara E. Zakutansky、María Belén Jiménez-Díaz、Laura Maria Sanz、Jennifer Riley、Rajshekhar Basak、Michael Campbell、Vicky M. Avery、Robert W. Sauerwein、Koen J. Dechering、Rintis Noviyanti、Brice Campo、Julie A. Frearson、Iñigo Angulo-Barturen、Santiago Ferrer-Bazaga、Francisco Javier Gamo、Paul G. Wyatt、Didier Leroy、Peter Siegl、Michael J. Delves、Dennis E. Kyle、Sergio Wittlin、Jutta Marfurt、Ric N. Price、Robert E. Sinden、Elizabeth A. Winzeler、Susan A. Charman、Lidiya Bebrevska、David W. Gray、Simon Campbell、Alan H. Fairlamb、Paul A. Willis、Julian C. Rayner、David A. Fidock、Kevin D. Read、Ian H. Gilbert
DOI:10.1038/nature14451
日期:2015.6.18
There is an urgent need for new drugs to treat malaria, with broad therapeutic potential and novel modes of action, to widen the scope of treatment and to overcome emerging drug resistance. Here we describe the discovery of DDD107498, a compound with a potent and novel spectrum of antimalarial activity against multiple life-cycle stages of the Plasmodium parasite, with good pharmacokinetic properties and an acceptable safety profile. DDD107498 demonstrates potential to address a variety of clinical needs, including single-dose treatment, transmission blocking and chemoprotection. DDD107498 was developed from a screening programme against blood-stage malaria parasites; its molecular target has been identified as translation elongation factor 2 (eEF2), which is responsible for the GTP-dependent translocation of the ribosome along messenger RNA, and is essential for protein synthesis. This discovery of eEF2 as a viable antimalarial drug target opens up new possibilities for drug discovery. The description of a compound (DDD107498) with antimalarial activity against multiple life-cycle stages of Plasmodium falciparum and good pharmacokinetic and safety properties, with potential for single-dose treatment, chemoprotection and prevention of transmission. With artemisinin resistance spreading, there is an urgent need to develop new therapeutics to target Plasmodium falciparum, the causative agent of malaria. Here Ian Gilbert and colleagues report the discovery of a compound (DDD107498) with antimalarial activity against multiple life-cycle stages of the parasite and good pharmacokinetic and safety properties. It is non-mutagenic and has potential for both single-dose treatment and once-weekly chemoprotection. DDD107498 acts through inhibition of cytosolic protein synthesis, with translation elongation factor eEF2 as its target.
迫切需要新药物来治疗疟疾,这些药物应具有广泛的治疗潜力和新颖的作用机制,以扩大治疗范围并克服新出现的药物耐药性。在这里,我们描述了DDD107498的发现,这是一种对多种疟原虫生命周期阶段具有强效和新颖抗疟活性的化合物,其药代动力学性质良好并且安全性可接受。DDD107498展现了满足多种临床需求的潜力,包括单剂量治疗、传播阻断和化学保护。DDD107498是在针对血液阶段疟原虫的筛选项目中开发的,其分子靶标已确定为翻译延伸因子2(eEF2),该因子负责GTP依赖的核糖体沿信使RNA的转位,并对蛋白质合成至关重要。将eEF2发现为一个可行的抗疟药物靶标,开启了药物发现的新可能性。DDD107498是一种对多种疟原虫生命周期阶段具有抗疟活性、药代动力学和安全性良好的化合物,具有单剂量治疗、化学保护和预防传播的潜力。随着青蒿素耐药性的传播,迫切需要开发新疗法以针对引起疟疾的疟原虫。在这里,Ian Gilbert和他的同事报告了一种具有对疟原虫多个生命周期阶段抗疟活性且具有良好药代动力学和安全性特性的化合物(DDD107498)的发现。该化合物无诱变性,有潜力用于单剂量治疗和每周一次的化学保护。DDD107498通过抑制细胞质蛋白质合成发挥作用,其靶标是翻译延伸因子eEF2。