相关实验视频

Updated: Jun 11, 2025

Development of a Hepatitis B Virus Reporter System to Monitor the Early Stages of the Replication Cycle

Development of a Hepatitis B Virus Reporter System to Monitor the Early Stages of the Replication Cycle

Published on: February 1, 2017

在B型肝炎病毒基因组中探索HiBiT标签插入的可容忍区域

Asako Murayama¹, Hitomi Igarashi¹, Norie Yamada¹

¹Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan.

|September 30, 2024

概括

研究人员使用HiBiT标签开发了一种针对乙型肝炎病毒 (HBV) 的新型细胞培养系统. 该系统能够灵敏地检测HBV感染,从而促进对慢性乙型肝炎的新抗病毒药物的发现.

科学领域:

病毒学病毒学
肝病学肝病学是一种肝病学.
生物技术是生物技术.

背景情况:

在全球范围内,乙型肝炎病毒 (HBV) 导致慢性肝炎,肝硬化和肝细胞癌.
目前用于慢性HBV感染的治疗方法不能保证根除.
一个强大的细胞培养系统对于开发新的抗HBV疗法至关重要.

研究的目的:

建立一个敏感的细胞培养系统,使用HiBiT标签监测HBV感染.
为了在HBV基因组中确定HiBiT标签的最佳插入位.
为了促进新型抗HBV药物的高通量查.

主要方法:

在五个基因组区域 (preS1,preS2,HBe,HBx,HB pol) 插入了HiBiT标签的HBV分子克隆.
感染的HepG2/NTCP细胞与标记HiBiT的HBV等离子体.
在HepG2/NTCP细胞和人类原发性肝细胞中评估HBV感染性和HiBiT信号检测.
使用preS1评估了HBV感染的抑制作用.

主要成果:

在preS1或HB pol区域中,HiBiT标记的HBV显示了感染后HBsAg水平的时间依赖性增加.
通过HBc抗原免疫染证实了传染性.
仅在前S1标记的HBV时才观察到依赖时间的HiBiT信号增加.
PreS1有效抑制了HiBiT标记的HBV感染,可通过HiBiT信号检测到.

结论:

在HepG2/NTCP细胞中的HiBiT标记的HBV系统提供了一种敏感且有效的查抗HBV药物的方法.
这个系统有助于理解HBV生命周期.
它代表了抗病毒药物发现的宝贵工具.

关键词:

这就是HBV HBV.在NTCP中,NTCP是NTCP.光酶是一种光酶.在 preS1 中使用 preS1.主要的肝细胞肝细胞.

更多相关视频

Detection of Low Copy Number Integrated Viral DNA Formed by In Vitro Hepatitis B Infection

Detection of Low Copy Number Integrated Viral DNA Formed by In Vitro Hepatitis B Infection

Published on: November 7, 2018

A Competent Hepatocyte Model Examining Hepatitis B Virus Entry through Sodium Taurocholate Cotransporting Polypeptide as a Therapeutic Target

A Competent Hepatocyte Model Examining Hepatitis B Virus Entry through Sodium Taurocholate Cotransporting Polypeptide as a Therapeutic Target

Published on: May 10, 2022

相关概念视频

Leaky Scanning

Leaky Scanning

During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...