Evaluation of a bivalent vaccine composed of iron scavenger receptors PMI1426 and PMI1945 against Proteus mirabilis.

IF 2.5 4区 生物学 Q3 MICROBIOLOGY
Roghayeh Mohammadzadeh, Mehri Habibi, Mohammad Reza Asadi Karam
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引用次数: 0

Abstract

Aim: Urinary tract infections (UTIs) caused by Proteus mirabilis are common infectious diseases. Currently, no vaccine is available against UTIs, making the development of an effective vaccine a critical goal to reduce the prevalence and antibiotic resistance of UTIs. Hence, we have investigated the immunogenicity and protective potential of a bivalent vaccine candidate comprising the iron scavenger receptors PMI1426 and PMI1945 from P. mirabilis in mice.

Methods: In this study, vaccine candidates composed of PMI1426 and PMI1945 from P. mirabilis were developed, and their immunogenicity, efficacy, and synergistic effects were evaluated in mice.

Results: Serum levels of IgG, IgG isotypes, IgA, and urinary IgA, as well as cytokine levels including IFN-γ, IL-4, and IL-17 were significantly elevated following vaccination with PMI1426 and PMI1945 as compared to the controls. The addition of alum enhanced the immune responses in both single and combined vaccine formulations. Furthermore, bacterial colonization in the bladder of mice challenged with P. mirabilis was significantly reduced in mice received the proteins admixed with alum compared to control groups.

Conclusion: Our results support the development of a promising vaccine candidate against P. mirabilis UTIs. Future human clinical trials are needed to validate the efficacy and safety of the vaccine candidates.

铁清除受体PMI1426和PMI1945组成的抗奇异变形杆菌二价疫苗的评价。
目的:奇异变形杆菌引起的尿路感染是一种常见的感染性疾病。目前,没有针对尿路感染的疫苗,因此开发有效疫苗是减少尿路感染流行率和抗生素耐药性的关键目标。因此,我们在小鼠体内研究了一种含铁清道夫受体PMI1426和PMI1945的二价候选疫苗的免疫原性和保护潜力。方法:制备由神奇假单胞菌PMI1426和PMI1945组成的候选疫苗,在小鼠体内评价其免疫原性、有效性和协同效应。结果:与对照组相比,接种PMI1426和PMI1945后,血清IgG、IgG同型、IgA和尿IgA水平以及IFN-γ、IL-4和IL-17等细胞因子水平显著升高。明矾的加入增强了单一和联合疫苗配方中的免疫反应。此外,与对照组相比,接受明矾混合蛋白的小鼠膀胱细菌定植量明显减少。结论:我们的研究结果支持开发一种有希望的抗神奇假单胞菌UTIs候选疫苗。未来需要进行人体临床试验来验证候选疫苗的有效性和安全性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Future microbiology
Future microbiology 生物-微生物学
CiteScore
4.90
自引率
3.20%
发文量
134
审稿时长
6-12 weeks
期刊介绍: Future Microbiology delivers essential information in concise, at-a-glance article formats. Key advances in the field are reported and analyzed by international experts, providing an authoritative but accessible forum for this increasingly important and vast area of research.
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