针对全身性红血性狼中的乌比奎丁-蛋白酶体通路
1Department of Medicine, Tuen Mun Hospital, Hong Kong, SAR, China.
Expert review of clinical immunology
|April 23, 2025
概括
用特定的抑制剂向全素-蛋白酶体系统 (UPS) 显示出治疗系统性红斑狼 (SLE) 的前景. 这些疗法减少炎症和改善疾病标志物在临床前和早期临床研究.
科学领域:
- * 分子生物学和免疫学
- * 药物发现和开发
背景情况:
- * 无素蛋白酶体系统 (UPS) 对于通过蛋白质降解来调节细胞功能至关重要.
- *调节UPS,包括蛋白酶和大脑蛋白E3结合酶,影响系统性红斑狼 (SLE) 中的关键途径.
- * 准UPS可以耗尽血细胞,减少自身抗体的产生,并调节与SLE治疗相关的T细胞反应.
研究的目的:
- * 审查关于调制UPS用于治疗小鼠和人类SLE的文献.
- * 评估选择性免疫蛋白酶抑制剂和大脑调节剂在SLE中的疗效和安全性.
主要方法:
- *对涉及SLE模型和患者的UPS调节器研究的文献综述.
- *对针对蛋白质体和脑细胞的药物临床试验数据的分析.
主要成果:
- * 博尔特佐米布,ONX-0914和泽托米普佐米布在小鼠狼性炎模型中显示出有效性.
- * 泽托米普佐米布在早期的SLE和狼性炎试验中显示出有前途.
- * 沙利多米德,莱纳利多米德和伊伯多米德在皮肤狼中表现出有效性,而伊伯多米德在第二阶段试验中表现出良好的结果.
结论:
- *选择性免疫蛋白酶体抑制剂和新型大脑细胞调节剂提供了更好的安全性.
- *需要进行进一步的临床试验,以探索这些UPS向剂在脏和皮肤SLE中的潜力.
- *UPS调制是SLE管理的一个有前途的治疗策略.
相关概念视频
Regulated Protein Degradation
7.1K
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
7.1K
The Proteasome
789
Eukaryotic cells can degrade proteins through several pathways. One of the most important among these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
789
Lysosomal Hydrolases
3.7K
Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
3.7K
Export of Misfolded Proteins out of the ER
3.4K
After folding, the ER assesses the quality of secretory and membrane proteins. The correctly folded proteins are cleared by the calnexin cycle for transport to their final destination, while misfolded proteins are held back in the ER lumen. The ER chaperones attempt to unfold and refold the misfolded proteins but sometimes fail to achieve the correct native conformation. Such terminally misfolded proteins are then exported to the cytosol by ER-associated degradation or ERAD pathway for...
3.4K


