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人类白病:在寻找更好的疫苗的过程中
Isabela Resende Azevedo1, Thais Akemi Amamura1, Lourdes Isaac1
1Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Scandinavian journal of immunology
|July 15, 2024
概括
莱普托斯皮罗斯是一种全球性动物传染性疾病,导致大量死亡. 目前的疫苗的数量有限,这促使人们研究新型的,广泛保护的,更安全的实验性疫苗来预防Leptospira.
科学领域:
- 传染性疾病 传染性疾病
- 疫苗学 疫苗学 疫苗学
- 微生物学 微生物学
背景情况:
- 莱普托斯皮罗斯是一种广泛传播的动物性疾病,由莱普托斯皮拉菌引起,在热带/亚热带地区普遍存在.
- 据估计,它每年在全球造成6万例死亡和100万例病例.
- 现有的商业疫苗在可用性,有效性和安全性方面是有限的,提供短期的,血清器特异性免疫力.
研究的目的:
- 审查对人类白病有希望的实验性疫苗候选人.
- 评估它们的免疫性,交叉血清保护,以及诱导杀菌免疫的潜力.
- 评估与疫苗开发相关的毒性和免疫逃避等因素.
主要方法:
- 审查关于新型莱普托斯皮拉疫苗策略的当前研究.
- 对候选疫苗的分析,包括减弱培养,LPS贫乏制剂,重组蛋白和DNA疫苗.
- 对各种Leptospira血清病毒的免疫性和保护性疗效数据的评估.
主要成果:
- 几种实验性疫苗方法显示出改善安全性和更广泛的保护的承诺.
- 减弱培养,无LPS制剂,重组蛋白和DNA疫苗正在研究中.
- 疫苗开发的关键因素包括免疫性,致病性Leptospira血清病毒的覆盖,以及向毒性/免疫逃避机制.
结论:
- 需要新的疫苗策略来克服当前Leptospira细菌的局限性.
- 实验性疫苗有可能提供更安全,更有效和更广泛的保护,防止白病.
- 进一步的研究至关重要,以开发可诱导针对不同Leptospira血清病毒的灭菌免疫的疫苗.
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