一种复合IL-1β疫苗在小鼠中减轻了白血素诱导的肺纤维化
Hanchao Li1, Qian Li1, Zhaoyang Hao2
1Department of Rheumatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China.
Vaccine
|May 7, 2024
概括
一种针对介质素-1β (IL-1β) 的新型疫苗在预防肺损伤和纤维化方面表现有前途. 这种抗IL-1β疫苗有效中和IL-1β活性,并保护小鼠免受白血素诱导的肺纤维化.
科学领域:
- 免疫学 免疫学 免疫学
- 肺部医学 肺部医学
- 生物技术是生物技术.
背景情况:
- 介质素-1β (IL-1β) 参与了间歇性肺病 (ILD) 和肺纤维化 (PF) 的发病.
- 在人类纤维化肺组织和肺损伤的小鼠模型中观察到 IL-1β 表达的升高.
- IL-1β的亲炎和亲纤维效应使其成为PF的潜在治疗标.
研究的目的:
- 开发和评估一种抗IL-1β疫苗,用于潜在的肺纤维化治疗.
- 评估疫苗在预防小鼠白胺诱导的肺损伤,炎症和纤维化方面的疗效.
- 研究疫苗对IL-1β介导的细胞反应及其对抗感染免疫力的影响.
主要方法:
- 设计了一种抗IL-1β疫苗 (PfTrx-IL-1β),使用与Pyrococcus furiosus thioredoxin (PfTrx) 融合的IL-1β衍生的多.
- 使用大肠杆菌表达系统制造了融合蛋白,并评估了其免疫性和生物活性在体外和体内.
- 在白素诱导的肺纤维化小鼠模型中评估疫苗的疗效,并使用败血症模型评估抗感染免疫力.
主要成果:
- PfTrx-IL-1β疫苗耐受性良好,诱导了强大的,持久的抗体反应,并中和了IL-1β活性.
- 用疫苗预免疫显著保护小鼠免受白素诱导的肺损伤,炎症和纤维化.
- 实验室研究表明,抗PfTrx-IL-1β抗体抑制了IL-1β诱导的细胞因子产生,纤维细胞激活和上皮-介质细胞过渡.
- 在败血症模型中,疫苗没有损害抗感染免疫力.
结论:
- 开发的抗IL-1β疫苗显示出作为肺纤维化治疗策略的潜力.
- 需要进一步的研究来评估其在慢性渐进和已确定的肺纤维化中的疗效.
- 疫苗在不损害抗感染免疫力的情况下中和IL-1β的能力支持其治疗潜力.
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