Immunity against Ixodes scapularis salivary proteins expressed within 24 hours of attachment thwarts tick feeding and impairs Borrelia transmission.

Immunity against Ixodes scapularis salivary proteins expressed within 24 hours of attachment thwarts tick feeding and impairs Borrelia transmission.
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附着后 24 小时内表达的针对肩胛硬蜱唾液蛋白的免疫力会阻碍蜱虫进食并损害疏螺旋体传播。

DOI:
10.1371/journal.pone.0000451
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发表时间:
2007-05-16
期刊:
影响因子:
3.7
通讯作者:
Fikrig E
Fikrig E
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Narasimhan S;Deponte K;Marcantonio N;Liang X;Royce TE;Nelson KF;Booth CJ;Koski B;Anderson JF;Kantor F;Fikrig E

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在北美,黑腿蜱、肩胛硬蜱是一种专性吸血节肢动物,是多种人类病原体的媒介,其中包括莱姆病病原体伯氏疏螺旋体。在这份报告中,我们表明蜱唾液腺转录组和蛋白质组是动态的,并且在充血过程中发生变化。我们使用肩胛伊壁虫摄食和伯氏疏螺旋体传播的豚鼠模型证明,针对蜱附着的前 24 小时(而不是之后)表达的唾液蛋白的免疫力足以唤起获得性蜱免疫的所有特征,阻止蜱摄食并损害伯氏疏螺旋体传播。定义这组蛋白质将促进对新型肩胛 I. scapularis 蛋白质的机制理解,这些蛋白质对于蜱进食的开始和伯氏疏螺旋体的传播至关重要。
In North America, the black-legged tick, Ixodes scapularis, an obligate haematophagus arthropod, is a vector of several human pathogens including Borrelia burgdorferi, the Lyme disease agent. In this report, we show that the tick salivary gland transcriptome and proteome is dynamic and changes during the process of engorgement. We demonstrate, using a guinea pig model of I. scapularis feeding and B. burgdorferi transmission, that immunity directed against salivary proteins expressed in the first 24 h of tick attachment — and not later — is sufficient to evoke all the hallmarks of acquired tick-immunity, to thwart tick feeding and also to impair Borrelia transmission. Defining this subset of proteins will promote a mechanistic understanding of novel I. scapularis proteins critical for the initiation of tick feeding and for Borrelia transmission.
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发表时间: 2001-03-01
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