INPP5D通过通过选择性自抑制促进IRF3降解来抑制抗疟疾免疫力
1Department of Immunology, Guangdong Provincial Key Lab of Single Cell Technology and Application, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.
Autophagy reports
|May 21, 2025
概括
伊诺西聚-5-酸酶D (INPP5D) 通过促进疟疾期间干扰素调节因子3 (IRF3) 的自,对I型干扰素 (IFN-I) 信号进行负面调节. 这种INPP5D途径为疟疾控制提供了潜在的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 寄生虫学的寄生虫学
背景情况:
- 伊诺西多-5-酸酶D (INPP5D) 对于免疫细胞的激活至关重要.
- 抗疟疾免疫的机制在很大程度上是未知的.
- 目前正在研究INPP5D在疟疾期间调节免疫反应中的作用.
研究的目的:
- 阐明INPP5D在抗疟疾免疫中的作用.
- 研究INPP5D在疟疾期间调节免疫信号的分子机制.
- 为了确定疟疾的潜在治疗点.
主要方法:
- 研究了INPP5D在调节I型干扰素 (IFN-I) 信号传输中的功能.
- 研究了INPP5D.通过INPP5D促进干扰素调节因子3 (IRF3) 自降解的作用.
- 分析了INPP5D,IRF3和自受体CALCOCO2/NDP52.2之间的相互作用.
- 研究了在感染Plasmodium yoelii后由miR-155-5p调节INPP5D的情况.
主要成果:
- 在疟疾期间,INPP5D作为IFN-I信号的负调节剂.
- INPP5D增强了IRF3与CALCOCO2/NDP52的关联,促进了IRF3的无处不在和自降解.
- 通过miR-155-5p降低INPP5D的调节,在IFN-I信号和自之间建立一个反循环.
- 在抗疟疾免疫中,INPP5D调解了IFN-I反应和自之间的交叉声.
结论:
- INPP5D通过将IFN-I信号和自连接起来,在调节疟疾免疫反应方面发挥着至关重要的作用.
- 准INPP5D可能是控制疟疾感染的新疗法策略.
相关概念视频
Regulation of the Unfolded Protein Response
2.4K
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...
2.4K
Phosphoinositides and PIPs
7.6K
Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
7.6K
The Intrinsic Apoptotic Pathway
5.9K
Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
5.9K
Autophagy
4.1K
Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
4.1K


