可食用的植物衍生的细胞外囊泡用于口服mRNA疫苗的输送
Chiara Gai1,2, Margherita Alba Carlotta Pomatto1,2, Maria Chiara Deregibus2
1EvoBiotech s.r.l., 10148 Torino, Italy.
Vaccines
|February 24, 2024
概括
来自植物的细胞外囊泡 (EVs) 为口服疫苗的输送提供了一种新的方法. 携带SARS-CoV-2mRNA的汁衍生的EVs在动物模型中成功刺激了免疫反应,证明了稳定,有效的疫苗的潜力.
科学领域:
- 生物技术是生物技术.
- 免疫学 免疫学 免疫学
- 植物科学 植物科学
背景情况:
- 细胞外囊泡 (EVs) 促进了跨物种的天然核酸转移.
- 电动汽车保护封装货物,如mRNA,免受降解.
- 目前正在探索植物衍生电动汽车的治疗应用,包括疫苗输送.
研究的目的:
- 调查可食用植物衍生的EVs在mRNA疫苗输送中的潜力.
- 为了评估SARS-CoV-2载有mRNA的汁衍生的EVs (oEVs) 的稳定性和免疫性.
主要方法:
- SARS-CoV-2 的 mRNA 被装入到 oEV 中.
- 在室温下评估了oEV的稳定性.
- 在mRNA载荷的oEVs被给予后,在小鼠和大鼠中评估了免疫性.
- 分析了幽默和细胞免疫反应.
主要成果:
- oEVs有效地保护mRNA免受降解,并保持稳定一年.
- 用mRNA载荷的oEVs在小鼠中诱导了SARS-CoV-2特异性免疫反应.
- 在大鼠中,用S1 mRNA对冷化OEV进行口服测量,产生阻断抗体 (IgA) 和Th1淋巴细胞激活.
结论:
- 含有mRNA的OEV显示出开发新口服疫苗的前景.
- oEVs提供诸如粘膜吸收,稳定性和刺激幽默和细胞免疫的能力等优势.
相关概念视频
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