在接种植物性Derf2-表达生物颗粒的狗中迅速诱导阻过敏原IgG
Thierry Olivry1, Lucie Mirande2, Lorenz Aglas3
1Nextmune, Madrid, Spain, and Stockholm, Sweden.
Veterinary dermatology
|September 2, 2024
概括
携带Derf 2过敏原的包裹植物生物颗粒安全地给狗,诱导过敏原特定的IgG. 这显示了未来家庭灰尘虫过敏免疫疗法的潜力.
科学领域:
- 兽医免疫学 兽医免疫学
- 生物技术是生物技术.
- 过敏原免疫疗法免疫疗法
背景情况:
- 病毒样颗粒 (VLP) 在临床前模型中显示出对过敏原免疫疗法 (AIT) 的前景.
- 包裹式植物生物颗粒 (eBP) 为过敏原提供了一个新的平台.
研究的目的:
- 为了评估免疫接种Derf2-携带eBP后的狗的过敏原阻断免疫球蛋白G (IgG) 的发展.
- 在狗模型中评估Derf 2-eBP的安全性和免疫性.
主要方法:
- 贝格尔犬接受了皮内注射 (ID) 或皮下注射 (SC) 的Derf2-eBP.
- 使用基基因介质释放试验和ELISA测试来测量免疫反应.
- 通过使用Pet Allergy Xplorer (PAX) 宏阵列和媒介释放抑制试验来评估过敏原阻断潜力.
主要成果:
- Derf2-eBP注射是安全的,没有观察到任何不良事件.
- 诱导了针对Derf 2的特定IgG抗体,可在第14天检测到,并在第41天达到峰值.
- 接种疫苗后的血清显示出显著抑制过敏原诱导的媒介释放和PAX反应性.
结论:
- 皮肤内和皮下注射Derf2-eBPs是安全的,并引起Derf2-特定的IgG反应在狗.
- 这些发现支持了eBP在开发犬类过敏免疫疗法的潜力.
- 未来的临床试验将评估对家用灰尘虫过敏的亚托皮犬的疗效.
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