相关实验视频

Updated: Jun 25, 2026

Protocol for Dengue Infections in Mosquitoes A. aegypti and Infection Phenotype Determination

Protocol for Dengue Infections in Mosquitoes A. aegypti and Infection Phenotype Determination

Published on: July 4, 2007

蚊子E-20-单氧化酶基因淘汰增加了登革热病毒在Aedes aegypti细胞中的复制

Bo Li^1,2, Di Wang², Xiaoxue Xie²

¹School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, China.

|April 27, 2024

概括

E-20单氧酶 (E20MO) 基因控制着蚊子细胞中的登革热2型病毒 (DENV2) 复制. 淘汰E20MO会增加DENV2RNA,而恢复它会降低病毒载量,揭示了E20MO.

科学领域:

分子生物学分子生物学
病毒学病毒学
昆虫学昆虫学是一门学科.

背景情况:

E-20-单氧酶 (E20MO) 对于昆虫的发育和繁殖至关重要.
通过E20MO进行的ecdysone代谢对于 oogenesis 是至关重要的.
在树木病毒感染中E20MO的作用,特别是登革热2型病毒 (DENV2) 的作用仍然未被探索.

研究的目的:

研究E20MO在Aedes aegypti蚊子细胞中DENV2感染中的作用.
为了确定在DENV2感染期间是否改变了E20MO表达.
阐明E20MO影响DENV2复制的机制.

主要方法:

对DENV2感染的Aag2细胞进行转录组分析,以确定E20MO.
在DENV感染后对E20MO基因表达的定量分析.
编辑CRISPR/Cas9基因以创建E20MO淘汰赛 (KO) Aag2细胞系.
在野生型 (WT),KO和补充细胞系中进行DENV2感染测定.
使用分子技术量化DENV2RNA副本.

主要成果:

在DENV2感染后,Aag2细胞中的E20MO基因表达显著增加.
成功生成并验证了具有代码转移突变的E20MO KO细胞系.
与WT细胞相比,E20MOKO细胞在中期感染阶段表现出显著更高的DENV2RNA拷贝.
用含有E20MO的质粒补充KO细胞降低了DENV2RNA水平.

结论:

E20MO在调节蚊子细胞内的DENV2复制方面发挥着至关重要的作用.
E20MO作为DENV2复制的抑制剂.
这些发现强调了蚊子宿主因素和树病毒之间的新型相互作用,这对载体控制策略有影响.

关键词:

这就是CRISPR/Cas9的作用.在 DENV2 中,DENV2 是 DENV2.这就是E-20-单氧基因酶.过度表达是一种过度表达.

更多相关视频

RNAi-mediated Gene Knockdown and In Vivo Diuresis Assay in Adult Female Aedes aegypti Mosquitoes

RNAi-mediated Gene Knockdown and In Vivo Diuresis Assay in Adult Female Aedes aegypti Mosquitoes

Published on: July 14, 2012

Reproducible dsRNA Microinjection and Oviposition Bioassay in Mosquitoes and House Flies

Reproducible dsRNA Microinjection and Oviposition Bioassay in Mosquitoes and House Flies

Published on: November 8, 2018

相关概念视频

Exon Recombination

Exon Recombination

The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon has three reading...

Arboviral Encephalitis

Arboviral Encephalitis

Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...