相关实验视频

Updated: Aug 10, 2026

Production of Pseudotyped Particles to Study Highly Pathogenic Coronaviruses in a Biosafety Level 2 Setting

Production of Pseudotyped Particles to Study Highly Pathogenic Coronaviruses in a Biosafety Level 2 Setting

Published on: March 1, 2019

一个等离子体双表达系统用于制备MS2病毒样颗粒包装SARS-CoV-2RNA的准备

Lili Qi¹, Zheng Zhang¹, Mengting Wang¹

¹School of Biological and Chemical Engineering, NingboTech University, Ningbo, Zhejiang, China.

Frontiers in cellular and infection microbiology

|December 14, 2023

概括

研究人员使用含有SARS-CoV-2 RNA的MS2菌体样颗粒 (MS2 VLPs) 开发了一种稳定的RNA阳性对照,用于COVID-19检测. 这种新的MS2 VLP系统为分子诊断提供了可靠的工具,提高了COVID-19测试的准确性.

科学领域:

分子生物学分子生物学
病毒学病毒学
生物技术是生物技术.

背景情况:

由SARS-CoV-2引起的COVID-19是一个重大的全球健康问题.
逆转录定量PCR (RT-qPCR) 是针对SARS-CoV-2等RNA病毒的标准分子诊断测试.
准确的检测依赖于可靠的阳性对照来进行测试验证.

研究的目的:

构建一种用于检测SARS-CoV-2的新型RNA阳性控制.
使用MS2菌体样颗粒 (MS2 VLPs) 用于包装SARS-CoV-2RNA.
建立一个稳定有效的分子诊断的正控.

主要方法:

在大肠杆菌中设计了一个单等离子体双表达系统 (pCDFDuet-1).
用双表达策略将SARS-CoV-2 RNA序列克隆成MS2 VLP.
MS2 VLP 通过 Ni-NTA 亲和力色谱法进行净化,并使用传输电子显微镜进行表征.

主要成果:

通过使用开发的单等离子体系统,成功生产了SARS-CoV-2 MS2 VLP.
MS2 VLPs表现出高稳定性,通过RNase A处理和储存条件分析证实了这一点.
传输电子显微镜验证了MS2 VLP的预期大小和形状.

结论:

含有SARS-CoV-2RNA的工程MS2 VLP是一种稳定且可行的阳性对照.
该系统为提高COVID-19分子诊断试验的可靠性提供了宝贵的工具.
该方法为开发对其他RNA病毒的控制提供了一个有希望的方法.

关键词:

在 COVID-19 疫情中,在MS2的VLP中,VLP是VLP.类似MS2病毒的微粒.土耳其土耳其人土耳其人土耳其人这就是SARS-CoV-2病毒.

更多相关视频

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses

Published on: November 10, 2023

Production of a SARS-CoV-2 Virus-Like-Particle System to Investigate Viral Life Cycles In Vitro

Production of a SARS-CoV-2 Virus-Like-Particle System to Investigate Viral Life Cycles In Vitro

Published on: June 6, 2025

相关概念视频

DNA Bacteriophages

DNA Bacteriophages

Bacteriophages, or phages, are viruses that specifically infect bacteria, utilizing their genetic material to hijack host cellular machinery for replication. DNA bacteriophages employ single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA) genomes. These phages exhibit diverse replication strategies and host interactions, influencing their ecological roles and applications in biotechnology and medicine.ssDNA BacteriophagesssDNA phages, with their small genomes, utilize unique strategies to...

Viruses with RNA Genomes

Viruses with RNA Genomes

RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...