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Updated: Jun 16, 2025

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对抗体反应的表达,净化和评估以及针对SARS-COV-2的设计多位疫苗的抗体-免疫原复合模拟

Ghadir A Jamal¹, Ehsan Jahangirian², Hossein Tarrahimofrad²

¹Faculty of Allied Health Sciences, Kuwait University, Kuwait City, Kuwait.

Protein and peptide letters

|August 20, 2024

概括

一种针对SARS-CoV-2的新型重组蛋白质疫苗候选人成功地被表达和净化. 在小鼠中免疫接种诱导了强烈的IgG抗体反应,显示了未来COVID-19疫苗开发的潜力.

科学领域:

生物技术是生物技术.
免疫学免疫学免疫学
病毒学病毒学

背景情况:

由SARS-CoV-2引起的COVID-19需要有效的疫苗.
像尖峰 (S),膜 (M),核囊 (N) 和信封 (E) 这样的关键病毒蛋白是疫苗开发的目标.

研究的目的:

为 SARS-CoV-2 候选疫苗表达一个复合的多皮托普免疫原体.
为了评估这种设计疫苗的免疫性和结合相互作用.

主要方法:

在大肠杆菌BL21 (DE3) 中使用pET26b等离子体和IPTG诱导进行重组蛋白表达.
通过Ni-NTA列染色学进行净化,并通过西部涂抹进行确认.
免疫接种小鼠和评估抗体反应;分子对接和动力学模拟用于结构相互作用分析.

主要成果:

优化基因显示了0.96的密码子兼容性.
在0.7mg/ml度下成功生成~70kDa的重组蛋白.
在小鼠中诱导显著的IgG血清抗体反应,标位高达1/256000;模拟证实与人类中和抗体的稳定相互作用.

结论:

表达的复合蛋白显示出免疫原潜力.
这个候选人需要进一步调查,以开发有效的SARS-CoV-2疫苗.

关键词:

在 COVID-19 疫情中,这就是SARSCOV-2.异种表达的异种表达.分子动力学分子动力学它们是重组蛋白质.疫苗研发疫苗的发展.

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