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
中科院分区:
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
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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