AgBR1 and NeSt1 antisera protect mice from Aedes aegypti-borne Zika infection.

AgBR1 and NeSt1 antisera protect mice from Aedes aegypti-borne Zika infection.
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DOI:
10.1016/j.vaccine.2021.01.072
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发表时间:
2021-03-19
期刊:
影响因子:
5.5
通讯作者:
Fikrig E
Fikrig E
中科院分区:
医学3区
文献类型:
--
作者:
Marin-Lopez A;Wang Y;Jiang J;Ledizet M;Fikrig E

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寨卡病毒(ZIKV)主要由埃及伊蚊传播。感染寨卡病毒可导致人类出现多种临床症状,从轻微到严重不等。此前,我们证明了针对埃及伊蚊的AgBR1或NeSt1抗血清(两种随病毒传播的蚊子唾液蛋白)进行被动免疫,可使小鼠对寨卡病毒产生部分保护作用。每种单独的抗血清都改变了皮肤中的早期宿主反应,并降低了病毒血症。在此,我们表明,联合使用AgBR1和NeSt1特异性抗体进行被动免疫可提高小鼠存活率并降低血液中的病毒载量,从而保护小鼠免受蚊媒寨卡病毒感染。这一发现表明,以AgBR1和NeSt1作为模型抗原,针对多种蚊子唾液蛋白进行免疫,可作为一种疫苗策略用于帮助预防蚊媒寨卡病毒感染。
Zika virus (ZIKV) is primarily spread by Aedes. aegypti mosquitoes. Infection with ZIKV can result in diverse clinical symptoms in humans, ranging from mild to severe. Previously, we demonstrated that passive immunization against A. aegypti AgBR1 or NeSt1 antiserum, two mosquito saliva proteins that are transmitted with the virus, conferred partial protection against ZIKV in mice. Each individual antiserum altered the early host response in the skin and reduced viremia. Here, we show that passive immunization with a combination of AgBR1- and NeSt1-specific antibodies enhanced survival and reduced the viral burden in blood, thereby protecting mice from mosquito-borne ZIKV infection. This finding suggests that targeting a combination of mosquito saliva proteins, with AgBR1 and NeSt1 as model antigens, may be used as a vaccine strategy to help prevent mosquitoborne ZIKV infection.
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