相关实验视频
Updated: Jul 26, 2025

10:35
Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus
Published on: May 31, 2020
3.0K
长非编码RNAs调节Aedes aegypti携带者对寨卡病毒和繁殖的能力
Alexandros Belavilas-Trovas1,2, Spyros Tastsoglou3,4, Shengzhang Dong1
1W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America.
PLoS pathogens
|June 15, 2023
概括
长非编码RNAs (lncRNAs) 对于蚊子的繁殖和树虫病毒的传播至关重要. 这项研究确定了调节寨卡病毒感染和蚊子生育能力的特定 lncRNAs,提供了新的害虫控制目标.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
- 载体生物学 载体生物学
背景情况:
- 长非编码RNAs (lncRNAs) 是细胞过程中的重要调节者.
- 它们在蚊子生物学中的作用,特别是生殖和载体能力,在很大程度上是未知的.
- 了解 lncRNAs 是开发新的蚊虫害虫控制策略的关键.
研究的目的:
- 调查lncRNAs在蚊子繁殖和树病毒载体能力中的功能.
- 为了识别和描述参与寨卡病毒 (ZIKV) 感染和蚊子繁殖的 lncRNAs.
主要方法:
- 从感染ZIKV的Aedes aegypti转录组中计算挖掘和选lncRNAs.
- 使用dsRNA介导的候选 lncRNAs 的基因沉默进行实验验证.
- 在 lncRNA 沉默后对 ZIKV 宽容性和蚊子生育能力的分析.
主要成果:
- 在ZIKV感染的Aedes aegypti组织中,六个lncRNAs被显著上调.
- 沉默1,2和22降低了ZIKV感染的宽容性.
- 22沉默降低了生育能力,而9沉默增加了生育能力,但没有影响ZIKV感染.
结论:
- 某些 lncRNAs 作为宿主因素,促进蚊子的病毒感染.
- lncRNAs可以调节蚊子的繁殖和树病毒载体能力.
- 这些发现突出了lncRNAs作为集成蚊子控制计划的潜在目标.
相关概念视频
lncRNA - Long Non-coding RNAs
8.7K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.7K
Types of RNA
5.9K
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
5.9K
siRNA - Small Interfering RNAs
16.9K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
16.9K
piRNA - Piwi-interacting RNAs
6.9K
PIWI-interacting RNAs, or piRNAs, are the most abundant short non-coding RNAs. More than 20,000 genes have been found in humans that code for piRNAs while only 2000 genes have been found for miRNAs. piRNAs can act at the transcriptional and post-transcriptional levels and have a vital role in silencing transposable elements present in germ cells. They are also involved in epigenetic silencing and activation. Previously, they were thought to function only in germ cells but new evidence suggests...
6.9K

