Population Health and Immunity Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.
Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia.
Front Cell Infect Microbiol. 2023 Jan 25;13:1076150. doi: 10.3389/fcimb.2023.1076150. eCollection 2023.
As progress towards malaria elimination continues, the challenge posed by the parasite species has become more evident. In many regions co-endemic for and , as transmission has declined the proportion of cases due to has increased. Novel tools that directly target are thus warranted for accelerated elimination. There is currently no advanced vaccine for and only a limited number of potential candidates in the pipeline. In this study we aimed to identify promising proteins that could be used as part of a subunit vaccination approach. We screened 342 P protein constructs for their ability to induce IgG antibody responses associated with protection from clinical disease in a cohort of children from Papua New Guinea. This approach has previously been used to successfully identify novel candidates. We were able to confirm previous results from our laboratory identifying the proteins reticulocyte binding protein 2b and StAR-related lipid transfer protein, as well as at least four novel candidates with similar levels of predicted protective efficacy. Assessment of these proteins in further studies to confirm their potential and identify functional mechanisms of protection against clinical disease are warranted.
随着疟疾消除工作的推进,寄生虫 引起的挑战变得更加明显。在 和 共同流行的许多地区,随着传播的减少,由 引起的病例比例有所增加。因此,需要有针对 的新型靶向药物来加速消除。目前还没有针对 的先进疫苗,而在研发管道中仅有数量有限的潜在候选疫苗。在这项研究中,我们旨在确定有希望的 蛋白,这些蛋白可作为亚单位疫苗接种方法的一部分。我们筛选了 342 个 P 蛋白构建体,以确定它们在诱导 IgG 抗体反应方面的能力,这些反应与巴布亚新几内亚儿童队列中免受临床疾病的能力相关。这种方法以前曾被用于成功鉴定新的候选疫苗。我们能够证实我们实验室的先前结果,确定了蛋白网织红细胞结合蛋白 2b 和 StAR 相关脂质转移蛋白,以及至少四个具有类似预测保护效力的新候选蛋白。值得进一步研究这些 蛋白,以确认它们的潜力并确定针对临床疾病的保护功能机制。
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