开发一种p62生物降解剂,用于自的向降解
Zacharias Thiel1, David Marcellin2, Carole Manneville2
1Discovery Sciences, Biomedical Research, Novartis, Basel, Switzerland. zacharias.thiel@novartis.com.
Nature communications
|December 3, 2025
概括
基于自的向降解有效清除细胞组件. 自载荷受体是降解器官和可溶性蛋白质的关键,显示出新治疗策略的前景.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 自补充了蛋白质体的降解,用于复杂的细胞废物清除.
- 针对性降解的自-溶酶体途径的最佳组件仍然未确定.
- 有针对性的降解策略对于了解和治疗各种疾病至关重要.
研究的目的:
- 为了确定有效的自成分,针对有机细胞和可溶性蛋白质的向降解.
- 探索诱导近距离策略来操纵自-溶酶体通路.
- 开发针对特定细胞标的新型异构生物功能降解剂.
主要方法:
- 利用两个直角诱导近距离策略来选自作用因子.
- 研究了自载荷受体,ATG8类蛋白,ULK1和TBK1在向降解中的作用.
- 开发并测试了针对p62的单域抗体,用于异构功能降解剂应用.
主要成果:
- 招募自载荷受体,ATG8类蛋白,ULK1或TBK1诱导的线粒.
- 只有自我聚合的自性载荷受体降解了可溶性细胞质蛋白质.
- 一个针对p62的单域抗体与PINK1融合,选择性地清除受损的线粒体.
结论:
- 自的载荷受体对于通过向的自来降解有机细胞和可溶性蛋白质至关重要.
- 贪在向性自的有效性中起着至关重要的作用.
- 自载荷受体代表了开发对有机体和蛋白质聚合物的异构功能降解剂的有希望的平台.
相关概念视频
Delivery Pathways to the Lysosome
8.7K
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...
8.7K
Autophagy
5.6K
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,...
5.6K
Autophagic Cell Death
4.3K
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...
4.3K
The Proteasome
1.6K
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...
1.6K
The Proteasome
10.0K
Eukaryotic cells can degrade proteins through several pathways. One of the most important amongst 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. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
10.0K
Regulated Protein Degradation
8.7K
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...
8.7K


