BIK的多态性和蛋白质酶调节揭示了严重流感的宿主风险因素
Sourabh Soni1, Soner Yildiz2,3, Emma Kaitlynn Allen4
1Department of Internal Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine, Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210.
概括
Bcl-2-交互杀手 (BIK) 影响流感A病毒 (IAV) 复制. 准BIK或蛋白质酶子单元β5为IAV感染提供了潜在的治疗策略.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
背景情况:
- 流感A型病毒 (IAV) 是一个主要的公共卫生问题.
- 宿主因素显著影响IAV疾病的严重程度.
研究的目的:
- 研究Bcl-2-相互作用杀手 (BIK) 在IAV感染中的作用.
- 探索BIK-蛋白酶轴在病毒复制和发病过程中的作用.
主要方法:
- 利用IAV感染的细胞和小鼠模型.
- 分析了流感和遗传变异的人类队伍.
- 进行了涉及病毒核蛋白 (NP) 和蛋白质酶子单元β5.5的机制研究.
主要成果:
- 由于BIK缺乏,呼吸道上皮细胞 (AECs) 中的IAV复制受损.
- 在小鼠中BIK过度表达增加了病毒载量,炎症和死亡率.
- 在BIK的遗传变异与人类的流感严重程度相关.
- IAV NP抑制蛋白质酶子单元β5,增加BIK水平和病毒复制.
- BIK与NP相互作用,促进病毒复制.
结论:
- 一个IAV-BIK-β5轴调节病毒复制.
- 准BIK或β5为流感提供了潜在的治疗途径.
相关概念视频
Leaky Scanning
5.2K
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...
5.2K
Viral Recombination
23.8K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
23.8K
Factors Affecting the Risk of Infection
12.3K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
12.3K
Protein Complexes with Interchangeable Parts
2.6K
Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
2.6K
Regulation of the Unfolded Protein Response
2.6K
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...
2.6K


