揭示ER压力,UPR和cGAS-STING通路之间的相互作用:对骨关节炎病原和治疗策略的影响
Li-Jen Soh1, Siam-Yee Lee1, Margaret M Roebuck2
1Department of Pharmacology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia.
Life sciences
|October 8, 2024
概括
骨关节炎涉及细胞应激,细胞内网膜 (ER) 应激,以及未折叠蛋白质反应 (UPR). 循环GMP-AMP合成酶 (cGAS) 刺激干扰素基因 (STING) 途径可能导致OA的炎症和软骨损失.
科学领域:
- 生物医学科学 生物医学科学
- 分子生物学分子生物学
- 病理学 病理学 病理学
背景情况:
- 骨关节炎 (OA) 是一种导致疼痛和残疾的退行性关节疾病.
- 细胞应激,炎症和细胞外基质降解是OA的特征.
- 冠状细胞亡和受损的愈合有助于疾病的进展.
研究的目的:
- 审查内质网膜 (ER) 应激和OA中的未折叠蛋白质反应 (UPR) 的作用.
- 讨论OA中循环GMP-AMP合成酶 (cGAS) 刺激干扰素基因 (STING) 信号通路的参与.
- 探索ER压力,UPR和cGAS-STING信号在OA病变发生过程中的相互作用.
主要方法:
- 关于OA病变发生的最新证据的文献综述.
- 对将细胞应激途径与OA联系起来的分子机制的分析.
- 讨论ER压力和cGAS-STING信号之间的交叉声.
主要成果:
- 在OA中,ER压力和UPR与状细胞亡和软骨矩阵损失有关.
- 作为对DNA损伤的反应,cGAS-STING通路的激活可能会引发OA的炎症反应.
- 有证据表明,在OA中,ER压力和cGAS-STING信号之间存在交叉通话.
结论:
- ER压力,UPR和cGAS-STING通路激活是骨关节炎炎炎症的关键媒介.
- 了解这些途径为OA提供了潜在的治疗点.
- 需要进一步的研究来阐明精确的机制和治疗潜力.
相关概念视频
The JAK-STAT Signaling Pathway
8.7K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
8.7K
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
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
Inflammatory Response
1.9K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
1.9K
Peptic Ulcer Disease IV: Management
74
Medical treatment strategies for peptic ulcers encompass various methods. The primary goal of treatment is to diminish gastric acidity and strengthen mucosal defense mechanisms.
The therapeutic approach involves ensuring adequate rest, implementing drug therapy, promoting smoking cessation, making dietary modifications, and emphasizing long-term follow-up care.
Pharmacological management
The prevailing therapy for peptic ulcers involves a combination of managing the patient's current...
The therapeutic approach involves ensuring adequate rest, implementing drug therapy, promoting smoking cessation, making dietary modifications, and emphasizing long-term follow-up care.
Pharmacological management
The prevailing therapy for peptic ulcers involves a combination of managing the patient's current...
74


