SHIP1通过弥合I型IFN信号与自细胞之间的交叉声调节抗疟疾免疫力
Hongyu Li1, Shuai Yang2, Ke Zeng1
1Department of Immunology, School of Basic Medical Sciences, Southern Medical University , Guangzhou, Guangdong, China.
mBio
|June 27, 2023
概括
含有异醇酸酶1 (SHIP1) 的Src同源性2通过促进IRF3降解来抑制I型干扰素信号传递. 在小鼠中,SHIP1缺陷增强了I型干扰素和疟疾耐药性,揭示了治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- I型干扰素 (IFN-I) 信号传递对宿主防御感染至关重要.
- 调节IFN-I信号的分子机制,特别是在疟疾期间,尚未完全理解.
- 了解这些机制对于开发新的治疗策略至关重要.
研究的目的:
- 阐明含有异醇酸酶1 (SHIP1) 的Src同样性2在调节疟疾期间的IFN-I信号传递中的作用.
- 研究SHIP1影响IRF3降解和自的分子机制.
- 评估SHIP1作为疟疾和其他传染病的潜在治疗点.
主要方法:
- 在小鼠中切除SHIP1的基因,以评估其对IFN-I信号传递和疟疾耐药性的影响.
- 调查IRF3无处可见化及其在SHIP1介导的自降解中的作用.
- 在感染期间分析了涉及miR-155-5p,IFN-I和SHIP1表达的反循环.
主要成果:
- SHIP1通过通过增强的K63链接无化和NDP52介导的选择性自来促进IRF3降解来抑制IFN-I信号传递.
- 在小鼠中,SHIP1的遗传删除导致IFN-I水平升高,并增加对Plasmodium yoelii nigeriensis (P.y. N67) 感染.感染.
- SHIP1被IFN-I诱导的miR-155-5p下调,建立了一个负反循环.
结论:
- 在疟疾期间,SHIP1作为IFN-I信号的负调节者,通过向IRF3进行自降解.
- 这项研究揭示了一种新的调节机制,它将IFN-I信号与自联系起来.
- SHIP1代表了一种有希望的治疗点,可以增强宿主对疟疾和相关传染病的免疫力.
更多相关视频
11:12Immunometabolic Circuits in Infection for Advancing Host Directed Therapies
Published on: September 13, 2024
450
11:21Forward Genetics Screens Using Macrophages to Identify Toxoplasma gondii Genes Important for Resistance to IFN-γ-Dependent Cell Autonomous Immunity
Published on: March 12, 2015
11.1K
相关概念视频
Immune Response Against Viral Pathogens
830
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...
830
Cell-mediated Immune Responses
69.1K
Overview
69.1K
