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The New Anthelmintic Tribendimidine is an L-type (Levamisole and Pyrantel) Nicotinic Acetylcholine Receptor Agonist

机译:新的驱虫药三苯甲idine是一种L型(左旋咪唑和吡喃酮)烟碱型乙酰胆碱受体激动剂。

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摘要

Intestinal parasitic nematodes or roundworms infect over 1 billion people in tropical countries. Overall, they are a huge source of morbidity in infected people, including children and pregnant women, and are increasingly being recognized as key poverty-promoting parasites. Despite their importance, few drugs for dealing with them exist. Furthermore, none has optimal efficacy, all can be resisted by the parasites, and, for practical reasons, only one is used for single-dose Mass Drug Administrations (MDAs). There is a dire need for better roundworm drugs (anthelmintics). In the past 30 years, only one anthelmintic, tribendimidine, developed by the Chinese CDC, has entered human clinical trials. Tribendimidine has good single-dose efficacy against some roundworm parasites. However, how tribendimidine works was unknown. Here, using the roundworm Caenorhabditis elegans to evolve resistance to tribendimidine in the lab, followed by genetic and molecular testing and cross-resistance drug studies, we demonstrate that tribendimidine is unequivocally in the same drug family as two known anthelmintics, levamisole and pyrantel. These results have important implications for how tribendimidine might be used in MDAs where resistance to current drugs is known or suspected and for how tribendimidine might be combined with other drugs to maximize therapy while minimizing resistance threats.
机译:在热带国家,肠道寄生线虫或round虫感染了10亿多人。总体而言,它们是包括儿童和孕妇在内的感染人群发病的巨大来源,并日益被认为是促进贫困的主要寄生虫。尽管它们很重要,但很少有用于治疗它们的药物。此外,没有一种药物具有最佳功效,所有的药物都可以被寄生虫抵抗,并且出于实际原因,单剂量大规模药物管理局(MDA)仅使用一种药物。迫切需要更好的round虫药(驱虫药)。在过去的30年中,中国疾病预防控制中心研制的一种驱虫药三苯二甲胺已进入人体临床试验。三苯双idine对某些round虫寄生虫具有良好的单剂量功效。但是,曲本苯二胺的工作原理尚不清楚。在这里,使用the虫秀丽隐杆线虫在实验室中发展对曲苯二胺的抗性,然后进行基因和分子测试以及交叉耐药性药物研究,我们证明曲苯二idine与两种已知的驱虫药,左旋咪唑和吡喃酮明确地在同一药物家族中。这些结果对于在已知或怀疑对当前药物有抗药性的MDA中如何使用三苯二idine,以及如何将三苯二idine与其他药物联合以最大化治疗效果,同时将抗药性威胁最小化具有重要意义。

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