在血栓形成和血管损伤中的细胞外PDI
Jinyu Wang1,2, Philip J Hogg3, Xulin Xu4,5
1Department of Pharmacology, School of Basic Medicine, Tongji Medical College, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
Thrombosis journal
|July 28, 2025
概括
细胞外蛋白二硫化异构酶 (PDI) 通过调节血小板激活,凝血和炎症,在血栓形成和血管损伤中发挥关键作用. 了解PDI的机制为血管疾病提供了新的治疗点.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 血管生物学 血管生物学
背景情况:
- 蛋白质二硫化异构酶 (PDI) 主要被称为内 плазма网膜 (ER) 蛋白质.
- 细胞外PDI已经成为各种病理生理条件中的关键调节者.
研究的目的:
- 审查了解细胞外PDI在血栓形成和血管损伤中的作用的最新进展.
- 阐明细胞外PDI影响这些过程的机制.
- 突出针对PDI的治疗潜力.
主要方法:
- 基于质谱的技术,包括基于机制的动态捕捉和差异性囊醇化,用于识别PDI基质.
- 对PDI细胞外功能现有文献的综述.
主要成果:
- 细胞外PDI调节血小板激活,凝血,中性粒细胞招募和血管细胞平衡.
- 通过二硫化物键的修改,PDI调节粘合受体,凝结因子和信号分子的功能.
- 在PDI的催化氨酸的翻译后修改使得可进行氧化还原信号传递.
结论:
- 细胞外PDI是血栓形成和血管损伤的重要因素.
- 了解PDI的机制,可以了解疾病的发病性.
- 新型PDI抑制剂为治疗血栓和血管疾病提供了机会.
相关概念视频
01:30Anticoagulant Drugs: Low-Molecular-Weight Heparins
911
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
911
01:16Clot Retraction and Fibrinolysis
6.9K
After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
6.9K
01:20Extrinsic and Intrinsic Pathways of Hemostasis
9.2K
Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
9.2K
01:26Protein Modifications in the RER
5.6K
Modification of secretory and transmembrane proteins entering the rough ER begins in the ER lumen. These modifications aid in protein folding and stabilize the acquired tertiary structure. Protein modifications in the rough ER co-occur at different stages of protein folding.
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...
5.6K
01:29Venous Thrombosis III: Interprofessional Care
22
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
22
01:17Intracellular Signaling Affects Focal Adhesions
2.8K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Some...
2.8K