凯瑟普辛在静脉缩中的多种作用
Hai Long Wang1,2, Megumi Narisawa3, Pan Wu1
1Department of Adult Intensive Care Unit, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
Heliyon
|February 9, 2024
概括
囊素 (Cats) 在支架放置后的血管反应中起着关键作用. 控制甲素可能会改善支架的生物相容性,并导致新的冠状动脉干预治疗.
科学领域:
- 心血管研究研究心血管研究
- 生物医学工程 生物医学工程
- 药理学 药理学是指药理学的学科.
背景情况:
- 药物排泄支架 (DES) 和双抗血小板疗法已经推进了缺血性心脏病的治疗.
- 当前的DES药物 (帕克利塔塞尔,拉帕胺衍生物) 可以导致延迟的重新内皮质化和新动脉样硬化.
- 需要新的策略来缓解与DES相关的不良结果,并了解潜在的机制.
研究的目的:
- 为了审查 cathepsins (Cats) 在支架植入后血管反应中的作用.
- 为了探索cathepsin参与炎症,颗粒组织形成和内脏增生.
- 评估 cathepsin 调制对改善支架生物相容性和开发新的冠状动脉干预的潜力.
主要方法:
- 文献综述专注于血管生物学中的甲素功能.
- 分析囊素在支架后植入过程中的作用,例如内皮脱皮和再内皮化.
- 检查甲素对新极度增生症和支架内的免疫反应的影响.
主要成果:
- 甲素与血管损伤后的炎症反应和颗粒组织形成有关.
- 甲素影响平滑肌肉细胞迁移,增殖和内皮功能.
- 在体内调节甲素可能会增强支架的生物相容性,并减少不良组织反应.
结论:
- 甲素是血管愈合和支架放置后免疫反应的关键调节者.
- 向甲素提供了一种潜在的治疗策略,以改善DES的结果.
- 基于甲素的干预措施可能是当前支架程序的新补充.
相关概念视频
01:24Regulation of Angiogenesis and Blood Supply
2.6K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.6K
01:23Catenins
2.3K
Catenins are characterized by multiple binding domains and dynamic structures that allow them to function as linker proteins in cell junction complexes. All catenins, except α-catenin, contain a characteristic protein sequence called the armadillo repeat and are therefore also called armadillo proteins.
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
2.3K
01:23Role of Matrix Metalloproteases in Degradation of ECM
2.4K
Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult...
2.4K
01:27Transducer Mechanism: Enzyme-Linked Receptors
2.5K
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:
2.5K
01:26Tension Response at Adherens Junctions
2.6K
The adherens junctions that anchor cells together are multi-protein complexes that dynamically adapt to mechanical stimuli such as tensile forces and shear stress. Mechanosensory proteins in these junctions can sense such mechanical stimuli and undergo a shift in their conformation, resulting in an altered function — a process called mechanotransduction.
α-Catenin as a Mechanosensory Protein
The α-catenin of adherens junctions is an allosteric protein with three VH (vinculin...
α-Catenin as a Mechanosensory Protein
The α-catenin of adherens junctions is an allosteric protein with three VH (vinculin...
2.6K
01:16Clot Retraction and Fibrinolysis
5.9K
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.
5.9K