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Updated: Sep 10, 2025

One-step Negative Chromatographic Purification of Helicobacter pylori Neutrophil-activating Protein Overexpressed in Escherichia coli in Batch Mode

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Published on: June 18, 2016

涂层纳米粒子通过激活Th1/Th2/Th17反应来增强Helicobacter pylori外膜囊泡的免疫功效

Songling Ye¹, Jin Liu¹, Shiyuan Huang¹

¹Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, People's Republic of China.

The Journal of pharmacology and experimental therapeutics

|August 19, 2025

概括

一种使用Helicobacter pylori外膜囊泡 (HM) 和带有LPS辅助剂的树突性半孔性有机纳米粒子 (DMON) 的新型纳米疫苗显示出强烈的免疫性. 这种LPS@DMON@HM疫苗提供了一种有希望的,非抗生素策略来对抗H. pylori感染.

科学领域:

疫苗学疫苗学疫苗学
纳米技术纳米技术
微生物学微生物学

背景情况:

杆菌的抗生素耐药性构成了全球卫生危机,需要采用替代的根除策略.
杆菌感染与各种胃肠道疾病有关,因此有效的治疗非常重要.
来自格拉姆阴性细菌的外膜囊泡 (OMV) 是免疫原体,并显示出疫苗开发的潜力.

研究的目的:

开发和评估一种新型纳米疫苗,LPS@DMON@HM,其免疫性和对Helicobacter pylori的疗效.
调查纳米疫苗诱导幽默,粘膜和细胞免疫反应的能力.
评估开发的纳米疫苗的安全性.

主要方法:

通过将脂聚糖 (LPS) 作为辅助剂加载到携带H. pylori外膜囊泡 (HM) 的树突性半孔性有机纳米粒子 (DMON) 上,构建了一个纳米疫苗.
在实验室评估了对巨细胞和细胞因子分泌 (IL-4,IFN-,IL-17A) 的影响.
通过测量免疫小鼠细胞中的特定抗体标位 (IgG) 和Th1/Th2/Th17细胞因子水平来评估体内免疫性.

主要成果:

在实验室中,LPS@DMON@HM纳米疫苗显著增强了巨细胞和细胞因子分泌.
在体内研究显示,与自由HM相比,血清特异性IgG抗体标位增加了16倍,达到1:12,800.
纳米疫苗诱导了Th1,Th2和Th17细胞因子的水平升高,表明细胞免疫力强大,并且没有表现出毒性.

结论:

该LPS@DMON@HM纳米疫苗表现出优越的免疫性,诱导强烈的幽默,粘膜和混合的Th1/Th2/Th17细胞免疫反应对H. pylori.
这种纳米疫苗代表了对H. pylori感染的安全有效的非抗生素治疗选择.
这项研究为下一代H. pylori疫苗提供了基础,并为开发针对其他格拉姆阴性病原体的疫苗提供了参考.

关键词:

树突性半孔性有机二氧化在Helicobacter Pylori的研究中,豁免权是一种豁免权.纳米疫苗的使用方法外膜囊泡是外膜囊泡中的一个.

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