Large-scale RNAi screening uncovers therapeutic targets in the parasite Schistosoma mansoni.

Large-scale RNAi screening uncovers therapeutic targets in the parasite Schistosoma mansoni.
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DOI:
10.1126/science.abb7699
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发表时间:
2020-09-25
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Collins JJ 3rd
Collins JJ 3rd
中科院分区:
其他
文献类型:
--
作者:
Wang J;Paz C;Padalino G;Coghlan A;Lu Z;Gradinaru I;Collins JNR;Berriman M;Hoffmann KF;Collins JJ 3rd

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血吸虫每年杀死25万人。血吸虫病的治疗依赖于吡喹酮药物。不幸的是,分子工具的缺乏阻碍了新药物靶点的发现。在这里,我们描述了一个大规模的RNA干扰筛选成人曼氏血吸虫检查2,216个基因的功能。我们发现了250个基因,其表型影响神经肌肉功能、组织完整性、干细胞维持和寄生虫存活。利用这些数据,我们优先考虑具有抗寄生虫活性的化合物,并发现一对蛋白激酶(TAO和STK 25),它们合作维持肌肉特异性mRNA转录。这些激酶中的任一种的缺失导致哺乳动物宿主中的瘫痪和蠕虫死亡。这些研究可能有助于加快治疗的发展和振兴这些被忽视的寄生虫的研究。RNAi筛选检测了20%的S. mansoni基因揭示了新的表型,并提出了新的治疗靶点。
Schistosome parasites kill 250,000 people every year. Treatment of schistosomiasis relies on the drug praziquantel. Unfortunately, a scarcity of molecular tools has hindered the discovery of new drug targets. Here, we describe a large-scale RNA interference screen in adult Schistosoma mansoni examining the function of 2,216 genes. We discovered 250 genes with phenotypes affecting neuromuscular function, tissue integrity, stem cell maintenance, and parasite survival. Leveraging these data, we prioritize compounds with activity against the parasites and uncover a pair of protein kinases (TAO and STK25) that cooperate to maintain muscle-specific mRNA transcription. Loss of either of these kinases results in paralysis and worm death in a mammalian host. These studies may help expedite therapeutic development and invigorate studies of these neglected parasites. An RNAi screen examines the function of 20% of S. mansoni genes uncovering new phenotypes and suggesting new therapeutic targets.
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