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自组装的amyloidogenic倾向及其作为DNA疫苗使用的辅助潜力

Paresh C Shrimali¹, Sheng Chen², Anirban Das³

¹Department of Biomedical Engineering, Washington University, St. Louis, MO 63130, USA.

Acta biomaterialia

|August 16, 2023

概括

自组装的生物材料对新疫苗有希望. 这项研究证实它们是无毒的,与粉样蛋白不同,并且在DNA疫苗中有效地引起免疫反应.

科学领域:

生物材料科学生物材料科学
疫苗学疫苗学疫苗学
分子生物学分子生物学

背景情况:

形成交叉β丰富纤维的自组合被探索为辅助剂和无炎症疫苗.
一个关键的问题是它们与神经退行性疾病相关的粉样物种的结构相似性.

研究的目的:

综合描述KFE8.8的氨基原性潜力.
评估携带GFP模型抗原的基于KFE8的DNA疫苗的安全性和免疫性.

主要方法:

对KFE8纤维与病理性粉样蛋白 (α-synuclein,TDP-43) 的比较分析.
在哺乳动物细胞和小鼠中开发和测试编码KFE8-GFP融合蛋白的基于等离子体的DNA疫苗.
评估KFE8表达,清除,交叉播种潜力和免疫反应 (抗体产生,T细胞激活).

主要成果:

KFE8表达是无毒的,并通过自清除.
KFE8纤维没有交叉种子α-synuclein粉样蛋白形成.
用KFE32-GFP DNA等离子体接种疫苗诱导了小鼠的强大的抗GFP抗体产生和抗原特异性CD8+ T细胞反应.
观察到一个平衡的Th1/Th2免疫反应.

结论:

交叉β丰富的类纳米纤维具有与病理性粉样蛋白不同的物理化学特性.
基于KFE8的基纳米纤维是自助剂DNA疫苗的安全有效平台.
这个平台为DNA疫苗开发提供了优势,包括遗传编码和修改潜力.

关键词:

粉样蛋白是什么粉样蛋白是什么免疫反应的免疫反应.体纳米纤维是一种体纳米纤维.自动组装自动组装疫苗疫苗疫苗疫苗酵母酵母是一种酵母.

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