揭示了沃尔巴基亚在树状病毒载体的转录组签名 Aedes aegypti
Sebastián Mejías1,2, Natalia E Jiménez2,3,4, Carlos Conca1,5
1Center for Biotechnology and Bioengineering (CeBiB), University of Chile, Santiago, Santiago, Chile.
Frontiers in cellular and infection microbiology
|May 13, 2025
概括
这项研究确定了Aedes aegypti蚊子中由Wolbachia感染持续影响的关键基因和功能. 这些发现揭示了了解蚊子-沃尔巴基亚共生和加强树状病毒疾病控制的新目标.
科学领域:
- 载体生物学和昆虫学.
- 微生物共生是微生物的共生.
- 基因组学和转录基因组学
背景情况:
- 埃及蚊子 (Aedes aegypti) 传播着像登革热这样的树木病毒,构成全球健康威胁.
- 沃尔巴基亚细菌可以阻止艾滋病病毒感染,提供一种控制策略.
- 了解艾迪斯 - 沃尔巴基亚共生需要识别持续受影响的宿主基因和功能.
研究的目的:
- 系统地识别Aedes aegypti基因和由Wolbachia感染持续影响的功能.
- 为了为Aedes aegypti-Wolbachia共生提供一种机制基础.
- 为了确定新的分子标,以改善基于Wolbachia的树状病毒疾病控制.
主要方法:
- 对 Wolbachia 感染和未感染的 Aedes aegypti 的已发表的转录组数据集进行了元分析.
- 使用差异表达和功能丰富分析,然后使用p值元分析的maxP方法.
- 包括来自成年雌性埃及虫组织 (头部,肌肉,尸体,中肠,身体) 和Wolbachia菌株wMel和wMelPop的数据集.
主要成果:
- 确定了10个持续下调的和21个持续上调的宿主基因,包括新型下调的外核酶AAEL009650.
- 揭示了电子运输链 (ETC),碳水化合物运输和类型酶活性的一致上调.
- 观察到一致的DNA复制的下调,并没有显著的双和NADPH-氧化酶的调节或下调.
结论:
- 这项研究确定了特定的宿主基因和功能,这些基因和功能对艾迪斯埃吉普蒂-沃尔巴基亚共生至关重要.
- 对ETC的升级表明了沃尔巴基亚诱导的抗病毒氧化应激的替代机制.
- 确定的目标为未来研究基本的共生机制和增强的疾病控制策略提供了基础.
相关概念视频
The Unfolded Protein Response
4.3K
The ER is the hub of protein synthesis in a cell. It has robust systems to quality control protein folding and also for degradation of terminally misfolded proteins. Under normal conditions, a small proportion of misfolded proteins that cannot be salvaged need to be transported to the cytoplasm by the ER-associated degradation or ERAD pathways. However, if the ERAD cannot handle the misfolded proteins, the cell activates the unfolded protein response or UPR to adjust the protein folding...
4.3K
Imprinting
9.6K
Behavioral imprinting is observed in some newborn animals and occurs when they develop strong and specific attachments to another animal (usually a parent) following brief, early-life exposures. Offspring imprint onto parents within a brief period after birth or hatching; this time window is called the critical period. Once imprinting occurs, the bond established between the parents and their offspring is usually long-lasting.
9.6K
Pinching-off of Coated Vesicles
3.0K
Vesicle budding is orchestrated by distinct cytosolic proteins such as adaptor proteins, coat proteins, and GTPases. To initiate vesicle budding, membrane-bending proteins containing crescent-shaped BAR domains bind to the lipid heads in the bilayer and distort the membrane to form a protein-coated vesicle bud. Adaptors proteins such as AP2 for clathrin-coated vesicles can nucleate on the deformed membrane. Finally, coat proteins such as clathrin or COPI and COPII assemble into a coat forming...
3.0K
Review and Preview
6.9K
In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
Percentiles are a type of fractile that partition data into...
6.9K
Blinding
2.3K
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
2.3K
Regulation of the Unfolded Protein Response
2.3K
Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
2.3K


