缺少Irf7可以保护人免受流感感染,不管是Irf3还是Irf7
Jianzhou Cui1,2,3,4, Sherman S W Foo1,2,3, Wan Ting Kong1,2,3
1Immunology Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
International journal of biological sciences
|February 16, 2026
概括
干扰素调节因子 (IRF3和IRF7) 在抗病毒免疫中起着不同的作用. IRF3驱动快速反应,而IRF7调节持续的炎症和适应性免疫协调.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 病毒学 病毒学
背景情况:
- 干扰素调节因子 (IRF3和IRF7) 对抗病毒免疫力至关重要.
- 它们在巨细胞和树突细胞 (DCs) 中的特定作用尚未完全理解.
研究的目的:
- 研究IRF3和IRF7在抗病毒免疫中的细胞类型特异性功能.
- 阐明它们在流感A病毒 (IAV) 感染期间对巨细胞和DC反应的独特贡献.
主要方法:
- 多omics方法包括体外测试,体内IAV感染模型,NanoString,转录组学和scGPT计算建模.
- 对全球IRF3-/-和IRF7-/-小鼠的分析.
- 肺膜巨细胞 (AMs),DC1和DC2子集的深度转录基因分析.
主要成果:
- 大细胞对TLR3刺激 (依赖IRF3) 更敏感,而DC对TLR7激活有更好的反应.
- 全球Irf7-/-小鼠对IAV的生存率增加,而Irf3-/-小鼠的恢复速度更快.
- 在IAV感染后,IRF7驱动AMs和DC2细胞的反应.
- scGPT模拟显示了IRF3和IRF7.7的不同的路径规则.
结论:
- IRF3和IRF7在抗病毒免疫中表现出不同的,取决于背景的作用.
- IRF3主要调节快速病原体感应,而IRF7调节持续的炎症和适应性免疫.
- 这些发现提供了针对性抗病毒疗法和先天免疫调节的见解.
更多相关视频
相关概念视频
02:28Leaky Scanning
5.7K
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...
5.7K
01:31Regulation of the Unfolded Protein Response
3.1K
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...
3.1K
01:29Immune Response Against Viral Pathogens
2.1K
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
2.1K