转录基因分析揭示了宿主免疫力的病毒调节机制,促进了Pelteobagrus fulvidracoco中的calicivirus复制
Siyu Liu1, Linyun Lin2, Yue Zou1
1College of Fishery, Zhejiang Ocean University, Zhoushan, 316022, China; Agriculture Ministry Key Laboratory of Healthy Freshwater Aquaculture, Key Laboratory of Fish Health and Nutrition of Zhejiang Province, Zhejiang Institute of Freshwater Fisheries, Huzhou, 313001, China.
Developmental and comparative immunology
|October 30, 2025
概括
黄色鱼病毒 (YcCV) 导致水产养殖业的重大损失. 这项研究揭示了YcCV感染会损害鱼类组织,并确定IL4i1是对病毒复制至关重要的前病毒因素,提供了新的抗病毒标.
科学领域:
- 水生动物的健康状况.
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
背景情况:
- 黄色鱼 (Pelteobagrus fulvidraco) 水产养殖受到病原体的威胁,特别是黄色鱼病毒 (YcCV).
- 了解P. fulvidraco对YcCV的免疫反应对于减轻疾病爆发至关重要.
研究的目的:
- 为了研究YcCV感染后黄鱼的组织病理学和转录基因变化.
- 确定关键的宿主基因和参与对YcCV.免疫反应的途径.
主要方法:
- 对头部脏,肝脏,脏,心脏和脏组织进行细胞病理学检查.
- 感染后1天和5天的YcCV感染和对照鱼的转录组分析 (RNA测序).
- 基因本体学 (GO) 和KEGG通路丰富分析.
- 通过siRNA介导的IL4i1的淘汰,以评估其在YcCV复制中的作用.
主要成果:
- YcCV感染引发了严重的组织损伤,包括肝硬化和脏出血.
- 观察到显著的基因表达差异,142个基因在1dpi和3402个基因在5dpi.
- 丰富的途径包括信号传导,亡,免疫反应和新陈代谢.
- IL4i1被上调并发现可以促进YcCV复制,因为siRNA敲击抑制了病毒载量.
结论:
- 黄鱼中YcCV感染会造成显著的组织病理损伤.
- IL4i1在YcCV复制中发挥着前病毒性作用,代表了抗病毒疗法的潜在目标.
- 这项研究增强了对YcCV病原和宿主病毒相互作用的理解.
相关概念视频
02:28Leaky Scanning
5.6K
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...
5.6K
01:29Viruses with RNA Genomes
783
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
783
01:26Size and Structure of Viral Genomes
654
Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...
654