在人类疾病中操纵自降解:从机制到干预措施
Yiqing Zhang1, Xiaoxia Liu1, Daniel J Klionsky2
1Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 20025, China.
Life medicine
|January 28, 2025
概括
有针对性的降解正在通过使用细胞循环系统自促进药物发现. 像AUTAC和ATTEC这样的新策略和工具正在出现,用于降解与疾病有关的蛋白质.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- 有针对性的降解已经彻底改变了药物发现,为以前无法治疗的目标提供了解决方案.
- 蛋白质溶解 - 向金氏体 (PROTAC) 使用了无处不在的蛋白质酶体系统.
- 自,一种依赖于溶酶体的降解途径,为向性降解提供了一种新的模式.
研究的目的:
- 审查针对性降解的自选择性的机制.
- 为了提供一个概述的细胞机械参与自.
- 提出设计基于自的向降解剂的策略.
主要方法:
- 审查当前关于自和向降解的文献.
- 选择性自机制的分析.
- 设计基于自的降解剂的四种拟议策略的分类.
- 新兴方法的案例研究,如AUTAC,TPA,AUTOTAC和ATTEC.
主要成果:
- 自的选择性机制为有针对性的降解提供了理由.
- 提出了设计基于自的降解剂的四种不同的策略:标记目标,直接参与目标,在目标上启动自,以及对目标进行法戈连接.
- 目前的边界包括AUTOPHAGY-TARGETING CHIMERA (AUTAC),向蛋白质自 (TPA),AUTOPHAGY-TARGETING CHIMERA (AUTOTAC) 和AUTOPHAGOSOME TETHERING COMPOUND (ATTEC) 这三种.
结论:
- 基于自的向降解是药物发现的一个有希望的前沿.
- 提出了一种用于生成基于自的降解剂的工作流.
- 需要进一步的研究来解决该领域的关键问题.
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
Delivery Pathways to the Lysosome
6.1K
Eukaryotic cells use different mechanisms to eliminate toxic waste obsolete and worn-out substances. Lysosomes play a pivotal role in this, and hence, these substances are carried to the lysosome from other parts of the cell and extracellular space through different pathways. The most elaborately studied pathways to the lysosome are the endocytic pathways.
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
6.1K
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
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
Autophagic Cell Death
3.2K
Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
3.2K
The Proteasome
803
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...
803


