亚斯鲁oside通过IRE-1/XBP-1介导的未折叠蛋白质反应促进先天免疫力
Hanlin Zhou1, Yu Shen2, Chunli Dong1
1Institute of Life sciences, Zunyi Medical University, Zunyi, Guizhou 563000, China; College of Basic Medicine, Zunyi Medical University, Zunyi, Guizhou 563000, China.
Bioorganic chemistry
|March 2, 2025
概括
阿斯鲁胺增强了虫和小鼠对 Pseudomonas aeruginosa 感染的天生的免疫力和抵抗力. 这种化合物激活了IRE-1/XBP-1通路,为新的抗菌药物开发提供了潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 来自Spreading Hedyotis Herb的asperuloside (ASP) 在各种疾病中显示出治疗潜力.
- 它在天生的免疫力和分子机制中的作用基本上是未知的.
- 细胞内网膜 (ER) 均质对于细胞完整性和免疫功能至关重要.
研究的目的:
- 为了研究阿斯佩鲁洛西德在天生的免疫力中的作用.
- 阐明阿斯鲁酸的免疫调节作用背后的机制.
- 为了评估阿斯佩鲁洛西德对抗Pseudomonas aeruginosa感染的疗效.
主要方法:
- 利用了Caenorhabditis elegans模型来评估对Pseudomonas aeruginosa PA14的耐药性.
- 研究了IRE-1/XBP-1信号通路的激活.
- 在人类A549肺上皮细胞和小鼠模型中测试了阿斯珀化的保护作用.
主要成果:
- 阿斯普鲁索显著增强了C. elegans对P. aeruginosa PA14的抵抗力,并降低了肠道细菌负载.
- 阿斯鲁化物治疗激活了IRE-1/XBP-1信号通路.
- 亚斯普鲁oside在人类肺细胞和小鼠中提供了对P. aeruginosa PA14感染的保护.
结论:
- 阿斯鲁酸促进先天免疫力,增强对细菌感染的抵抗力.
- IRE-1/XBP-1通路是调解阿斯佩鲁洛西德免疫增强作用的关键机制.
- 亚斯鲁酸在各个物种中保持着免疫促进能力,这表明它有可能成为一种新的抗菌疗法.
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
The Unfolded Protein Response
4.4K
The ER is the hub of protein synthesis in a cell. It has robust systems to quality control protein folding and also for degradation of terminally misfolded proteins. Under normal conditions, a small proportion of misfolded proteins that cannot be salvaged need to be transported to the cytoplasm by the ER-associated degradation or ERAD pathways. However, if the ERAD cannot handle the misfolded proteins, the cell activates the unfolded protein response or UPR to adjust the protein folding...
4.4K
NF-κB-dependent Signaling Pathway
7.2K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.2K
Protein Modifications in the RER
5.0K
Modification of secretory and transmembrane proteins entering the rough ER begins in the ER lumen. These modifications aid in protein folding and stabilize the acquired tertiary structure. Protein modifications in the rough ER co-occur at different stages of protein folding.
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...
5.0K
Immune Response Against Viral Pathogens
725
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...
725
The Extrinsic Apoptotic Pathway
5.8K
The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...
5.8K


