Mosquito immune responses to arbovirus infections.

Mosquito immune responses to arbovirus infections.
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DOI:
10.1016/j.cois.2014.07.005
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发表时间:
2014-09-01
影响因子:
5.3
通讯作者:
Olson, Ken E.
Olson, Ken E.
中科院分区:
农林科学2区
文献类型:
--
作者:
Blair, Carol D.;Olson, Ken E.

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蚊子对病毒感染的主要先天免疫反应,RNA干扰(RNAi),与对细菌和真菌感染的免疫反应有很大不同。 exo-siRNA 途径构成了主要的抗虫媒病毒 RNAi 反应,其重要的遗传成分已被鉴定。最近的研究还表明,Piwi 相互作用的 RNA 途径与蚊子的抗虫媒病毒免疫有关,但所涉及的 Piwi 基因家族成分尚不明确。虫媒病毒必须逃避或抑制 RNAi,而不引起载体发病,以维持其传播周期,但人们对虫媒病毒调节 RNAi 的机制知之甚少。对蚊子进行基因操作以增强其 RNAi 反应可以限制虫媒病毒感染和复制,并可用于阻断虫媒病毒传播并大大减少疾病的新策略。
The principal mosquito innate immune response to virus infections, RNA interference (RNAi), differs substantially from the immune response to bacterial and fungal infections. The exo-siRNA pathway constitutes the major anti-arboviral RNAi response and its essential genetic components have been identified. Recent research has also implicated the Piwi-interacting RNA pathway in mosquito anti-arboviral immunity, but Piwi gene-family components involved are not well-defined. Arboviruses must evade or suppress RNAi without causing pathogenesis in the vector to maintain their transmission cycle, but little is known about mechanisms of arbovirus modulation of RNAi. Genetic manipulation of mosquitoes to enhance their RNAi response can limit arbovirus infection and replication and could be used in novel strategies for interruption of arbovirus transmission and greatly reduce disease.
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