Chemoprophylaxis vaccination with a Plasmodium liver stage autophagy mutant affords enhanced and long-lasting protection.

Chemoprophylaxis vaccination with a Plasmodium liver stage autophagy mutant affords enhanced and long-lasting protection.
复制标题

用疟原虫肝脏阶段自噬突变体进行化学预防接种可提供增强和持久的保护。

DOI:
10.1038/s41541-021-00360-1
复制
发表时间:
2021-08-10
期刊:
影响因子:
9.2
通讯作者:
Coppens I
Coppens I
中科院分区:
医学1区
文献类型:
--
作者:
Sahu T;Gehrke EJ;Flores-Garcia Y;Mlambo G;Romano JD;Coppens I

文献摘要

参考文献

相似文献

基因减毒子孢子疫苗可以产生针对疟疾的持久保护,但存在突破性感染的风险。事实证明,化学预防疫苗接种(CVac)是对抗疟疾最有效的疫苗策略。在这里,我们证明了伯氏疟原虫的肝脏阶段特异性自噬突变体(ATG 8过表达),当用作CVac方案下的活疫苗时,在近交系和远交系小鼠中,与WT-CVac相比,提供了上级持久的保护。独特的是,由该突变体引起的保护主要依赖于通过IFN-γ非依赖性机制的CD 8 + T细胞应答,并且与抗原经历的CD 8 + T细胞的稳定群体相关。共同,我们的研究结果支持开发肝脏阶段的突变体作为疫苗下的CVac协议。这种疫苗接种策略也是研究保护性免疫机制和发现新的保护性抗原的有力模型。
Genetically attenuated sporozoite vaccines can elicit long-lasting protection against malaria but pose risks of breakthrough infection. Chemoprophylaxis vaccination (CVac) has proven to be the most effective vaccine strategy against malaria. Here, we demonstrate that a liver stage-specific autophagy mutant of Plasmodium berghei (ATG8 overexpressor), when used as a live vaccine under a CVac regimen, provides superior long-lasting protection, in both inbred and outbred mice, as compared to WT-CVac. Uniquely, the protection elicited by this mutant is predominantly dependent on a CD8+ T-cell response through an IFN-γ-independent mechanism and is associated with a stable population of antigen-experienced CD8+ T cells. Jointly, our findings support the exploitation of liver-stage mutants as vaccines under a CVac protocol. This vaccination strategy is also a powerful model to study the mechanisms of protective immunity and discover new protective antigens.
DOI: 10.1016/j.chom.2011.05.008
发表时间: 2011-06-16
影响因子: 30.3
作者:
Butler NS;Schmidt NW;Vaughan AM;Aly AS;Kappe SH;Harty JT
通讯作者: Harty JT
DOI: 10.1371/journal.ppat.1000877
发表时间: 2010-05-06
期刊: PLoS pathogens
影响因子: 6.7
作者:
Cockburn IA;Chen YC;Overstreet MG;Lees JR;van Rooijen N;Farber DL;Zavala F
通讯作者: Zavala F
DOI: 10.1186/1476-8518-9-6
发表时间: 2011-10-17
期刊: Journal of immune based therapies and vaccines
影响因子: --
作者:
Douradinha B;van Dijk M;van Gemert GJ;Khan SM;Janse CJ;Waters AP;Sauerwein RW;Luty AJ;Silva-Santos B;Mota MM;Epiphanio S
通讯作者: Epiphanio S
DOI: 10.3389/fmicb.2016.01617
发表时间: 2016
影响因子: 5.2
作者:
Gomes PS;Bhardwaj J;Rivera-Correa J;Freire-De-Lima CG;Morrot A
通讯作者: Morrot A
DOI: 10.1073/pnas.1220360110
发表时间: 2013-05-07
影响因子: 11.1
作者:
Bijker, Else M.;Bastiaens, Guido J. H.;Sauerwein, Robert W.
通讯作者: Sauerwein, Robert W.