针对呼吸道疾病的宁血管酶系统
Phyllis X L Gan1, W Liao2, Kira M Linke3
1Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore, Singapore.
Advances in pharmacology (San Diego, Calif.)
|July 31, 2023
概括
向宁-血管酶系统 (RAS) 为喘和COPD等肺部疾病提供了潜在的治疗方法. 虽然抑制某些RAS成分是有希望的,但需要进一步的研究来理解新的途径,并验证在人类临床试验中的发现.
科学领域:
- 肺部医学 肺部医学
- 心血管研究研究心血管研究
- 药理学 药理学是指药理学的学科.
背景情况:
- 氨酸-血管氨系统 (RAS) 对于血压调节至关重要.
- RAS失调与炎症,氧化应激和肺部疾病如喘,COPD,IPF和ALI中的纤维化有关.
- 准RAS组件为呼吸道疾病提供了潜在的治疗策略.
研究的目的:
- 提供RAS的最新概述.
- 审查和分析针对针对RAS组件的最新研究,以治疗呼吸系统疾病.
- 突出RAS向治疗肺部疾病的治疗潜力和当前局限性.
主要方法:
- 在呼吸道疾病中对RAS进行实验和临床研究的汇编和分析.
- 对针对各种RAS组件 (例如,ACE,AT1R,ACE2,AT2R,Mas受体) 的药理干预措施的审查.
- 评估新出现的途径,如阿拉曼丁/MRGPRD.
主要成果:
- 在临床前和临床环境中,抑制促炎性RAS轴 (renin,ACE,Ang II,AT1R) 和激活保护轴 (ACE2,AT2R,Ang (1-7),Mas) 的有效性各不相同.
- 阿拉曼丁/MRGPRD途径显示出治疗的前景.
- 了解RAS连接体-受体相互作用和信号通路需要进一步阐明.
结论:
- 准RAS是治疗呼吸系统疾病的一个有希望的途径.
- 对一些RAS向分子的临床前发现是有希望的,但需要更强大的临床验证.
- 未来的研究应该优先考虑基于RAS的肺部疾病药物开发的转化人类研究.
相关概念视频
Antihypertensive Drugs: Direct Renin Inhibitors
684
The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
684
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
463
The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
463
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors
692
Angiotensin-converting enzyme (ACE), a vital component of the renin-angiotensin-aldosterone system, is abundant in lung endothelial cells. ACE converts the inactive decapeptide, angiotensin I, into the active octapeptide, angiotensin II. This potent vasoconstrictor narrows blood vessels, increasing resistance to blood flow and elevating blood pressure. Angiotensin II also stimulates aldosterone production, encouraging kidney cells to reabsorb more sodium and water from urine, thereby increasing...
692
Antihypertensive Drugs: Angiotensin II Receptor Blockers
780
In the renin-angiotensin-aldosterone system, a hormone called angiotensin II plays a crucial role. It binds to the AT1 receptors in vascular smooth muscles coupled with Gq proteins. The activation of these receptors activates an enzyme called phospholipase C, which releases two molecules: inositol trisphosphate and diacylglycerol. These molecules cause a chain reaction that leads to the phosphorylation of myosin light chains and promotes interaction between actin and myosin, leading to smooth...
780
Hormonal Regulation
33.3K
The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
33.3K
Drugs Used in Lower Respiratory Disorders: Overview
489
Lower respiratory tract disorders present challenges that often require skilled and nuanced approaches for effective management. Common ailments, such as asthma and chronic obstructive pulmonary disease (COPD), have prompted the development of intricate treatment strategies involving bronchodilators and anti-inflammatory drugs, each tailored to ease breathing and revitalize the lungs.
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
489


