作为针对TGEV的向免疫治疗的益生菌载体,表达IFITM3的植物乳杆菌 (HA-r-LAB)
Binghan Bai1, Maokun Zhu1, Ling Zhang1
1College of Veterinary Medicine, Hunan Agricultural University (HUNAU), Changsha, 410128, Hunan, China.
Veterinary research
|December 30, 2025
概括
通过氨酸纳米粒子输送的表达抗病毒蛋白IFITM3的工程益生菌 (Lactiplantibacillus plantarum) 减少了猪的病毒载量和症状. 这显示了益生菌治疗药物的纳米分发的潜力.
科学领域:
- 微生物学 微生物学
- 纳米技术纳米技术
- 病毒学 病毒学
背景情况:
- 乳植物菌 (Lactiplantibacillus plantarum) 是一种具有药物传递潜力的益生菌.
- 干扰素诱导的跨膜蛋白3 (IFITM3) 有广泛的抗病毒特性.
- 开发有效的抗病毒疗法仍然是一个关键的挑战.
研究的目的:
- 为了设计L. plantarum用于IFITM3表达.
- 开发一种益生菌纳米递送系统 (HA-r-LAB),以提高生物可用性.
- 在小猪模型中评估表达IFITM3的HA-r-LAB对传染性胃肠炎病毒 (TGEV) 的疗效.
主要方法:
- 对L. plantarum进行基因工程,以表达IFITM3.
- 复合L. plantarum的纳米封装与氨酸.
- 口服HA-r-LAB给受TGEV挑战的小猪.
- 病毒定位和临床评估.
- 蛋白质相互作用的生物化学分析.
主要成果:
- 再组合的L. plantarum成功地表达了IFITM3.
- HA-r-LAB构造证明了稳定性和增强的交付.
- 口服HA-r-LAB显著降低了TGEV病毒标称和临床症状.
- 证实了IFITM3和TGEV核蛋白之间的直接分子相互作用.
结论:
- HA-r-LAB 作为一种有效的基于益生菌的抗病毒蛋白的纳米输送载体.
- IFITM3通过与其核囊蛋白相互作用,表现出一种针对TGEV的新机制.
- 这种方法对开发针对冠状病毒的组合疗法充满希望.
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