相关实验视频

Updated: Jan 13, 2026

Isolation of Viral Replication Compartment-enriched Sub-nuclear Fractions from Adenovirus-infected Normal Human Cells

Isolation of Viral Replication Compartment-enriched Sub-nuclear Fractions from Adenovirus-infected Normal Human Cells

Published on: November 12, 2015

从人类腺病毒4型感染的肺上皮细胞释放出的细胞外囊的载荷和生物特性

Alessio Noghero¹, Stephanie Byrum², Chioma Okeoma³

¹Lovelace Biomedical Research Institute, Albuquerque, NM 87108, USA.

|October 29, 2025

概括

来自腺病毒4型感染细胞的细胞外囊泡 (EV) 携带病毒DNA和RNA,在没有完整的病毒的情况下启动新的感染. 这些腺病毒-EV可能会促进宿主体内的非性病毒传播.

科学领域:

病毒学病毒学
细胞生物学细胞生物学
分子生物学分子生物学

背景情况:

细胞外囊泡 (EVs) 是细胞间通信的关键,特别是在病毒感染期间.
在腺病毒感染中EVs的特定作用仍然在很大程度上未被探索.
人类腺病毒4型 (HAdV-E4) 是一个重要的呼吸道和眼部病原体.

研究的目的:

研究从HAdV-E4感染的肺上皮细胞释放的EVs的载荷和生物功能.
了解这些EV在病毒传播中的作用,在临床前阶段.
描述HAdV-E4感染对EV组成的影响.

主要方法:

人类4型腺病毒 (HAdV-E4) 感染A549肺上皮细胞.
使用免疫捕获技术隔离EVs.
多omics分析包括质谱 (蛋白质组学) 和小RNA测序.

主要成果:

HAdV-E4感染显著改变了释放的EVs的蛋白质和小非编码RNA含量.
质谱学在感染EV (AdV-EV) 中发现了268种独特的蛋白质,包括病毒蛋白和参与囊泡贩运和翻译的蛋白质.
AdV-EVs含有病毒基因组DNA和与病毒相关的RNA,并且可以在原始细胞中独立于完整的病毒颗粒启动生产性感染.

结论:

在HAdV-E4感染期间释放的EV被丰富了病毒成分和宿主因子,支持病毒复制.
AdV-EV可以作为病毒传播的非体载体,可能有助于宿主内传播.
在感染期间,EVs代表了腺病毒传播和细胞间通信的新机制.

关键词:

在RNAseqqq中使用.腺病毒的病毒.外基因组是外基因组的组成部分.纳米粒子跟踪分析分析蛋白质组学蛋白质组学

更多相关视频

Combined Genetic and Chemical Capsid Modifications of Adenovirus-Based Gene Transfer Vectors for Shielding and Targeting

Combined Genetic and Chemical Capsid Modifications of Adenovirus-Based Gene Transfer Vectors for Shielding and Targeting

Published on: October 26, 2018

Characterizing Extracellular Vesicles from Biological Fluids

Characterizing Extracellular Vesicles from Biological Fluids

Published on: February 28, 2025

相关概念视频

Overview of Exosomes

Overview of Exosomes

Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...

Intralumenal Vesicles and Multivesicular Bodies

Intralumenal Vesicles and Multivesicular Bodies

Intraluminal vesicles (ILVs) are small vesicles 50-80 nm in diameter formed during the maturation of early endosomes. A specialized endosome containing numerous ILVs is called a multivesicular body (MVB). ILVs contain internalized molecules such as antigens, nucleic acids, proteins, and metabolites. Some of these molecules are released from the MVBs inside exosomes and are transported to other cells. Other MVBs contain molecules that are retained in the ILVs and are later degraded within the...