蛋白质组学和蛋白质组学揭示了失调的激酶和肝纤维化潜在治疗方法
Xinyu Cheng1, Li Kang2, Jinfang Liu3
1Anhui Medical University School of Basic Medicine, Anhui, PR China; State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.
Molecular & cellular proteomics : MCP
|May 14, 2025
概括
这项研究揭示了早期肝纤维化中的关键蛋白质酸化变化,确定了STK4,GSK3α和CDK11B等特定激酶作为治疗肝纤维化的潜在治疗标.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 病理学 病理学 病理学
背景情况:
- 肝纤维化是许多肝病和代谢障碍的关键阶段.
- 了解分子机制,特别是酸化等蛋白质修饰,对于开发有效的治疗方法至关重要.
- 目前关于肝纤维化病原体的调节机制的知识有限.
研究的目的:
- 为了研究早期肝纤维化中的蛋白质和蛋白质变化.
- 为了确定关键的激酶和信号通路参与肝纤维化发展.
- 探索抗纤维性干预的潜在治疗点.
主要方法:
- 早期肝纤维化的四化碳诱导小鼠模型的蛋白质和蛋白质分析.
- 西方涂抹以验证酸化水平的变化.
- 激酶基质分析以确定过度活跃的激酶.
- 在体外和体内验证已识别的激酶抑制剂.
主要成果:
- 与细胞外基质,原蛋白形成和新陈代谢相关的途径的显著丰富.
- 纤维性肝组织的全球酸化水平升高,发现了952种增加和156种减少的酸盐.
- 鉴定了13种显著改变的激酶,包括STK4,GSK3α和CDK11B,主要来自STE,CMGC和CAMK家族.
- STK4,GSK3α和CDK11B的抑制剂在降低肝星细胞激活和细胞外基质生成方面表现出有效性.
结论:
- 特定的激酶,包括STK4,GSK3α和CDK11B,在早期肝纤维化时显著失调.
- 这些激酶代表了肝纤维化治疗的有希望的治疗标.
- 针对这些激酶的抑制剂可能为抗纤维菌药物开发提供一种新的策略.
更多相关视频
相关概念视频
Protein Kinases and Phosphatases
13.1K
Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
13.1K
Phosphorylation
50.1K
The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
50.1K
Proteomics
7.2K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.2K
Transducer Mechanism: Enzyme-Linked Receptors
2.4K
Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Major types that are helpful drug targets include:
2.4K
PI3K/mTOR/AKT Signaling Pathway
3.4K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
3.4K
Interactions Between Signaling Pathways
6.2K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.2K


