通过Rac-1诱导阿尔多和甘之间的交叉作用诱导糖尿病脏病
Mayura Apte1, Mohd Shahnawaz Khan2, Nilima Bangar1
1Symbiosis School of Biological Sciences, Symbiosis International (Deemed University) (SIU), Lavale, Pune, Maharashtra State 412115, India.
ACS omega
|October 16, 2023
概括
阿尔多 (Aldo) 增强了糖化,而与阿尔多一起的高级糖化终产品 (AGEs) 复合物通过RAGE-MR交叉和Rac-1激活促进了糖尿病病 (DN) 的炎症.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 先进的糖化终产物 (AGEs) 和阿尔多 (Aldo) 在糖尿病病 (DN) 中独立地激活Rac-1和NF-κB.
- 在对Aldo的反应中,AGE受体 (RAGE) 和矿物质皮质体受体 (MR) 之间的相互作用尚未完全理解.
- 这项研究调查了AGE-RAGE和Aldo-MR信号通路在细胞中的交叉声.
研究的目的:
- 检查AGE-Aldo复合物对细胞的影响.
- 为了研究AGE-Aldo复合物对RAGE-MR相互作用的影响.
- 阐明糖尿病病的炎症背后的分子机制.
主要方法:
- 人类血清白蛋白 (HSA) 在Aldo和aminoguanidine (AG) 的存在下被糖化.
- 测量了糖化标志物,AGE和托西丁水平.
- 细胞被用糖化HSA-Aldo和RAGE和Aldo的抗体治疗,随后对RAGE,MR,Rac-1和NF-κB的表达进行分析.
主要成果:
- 阿尔多显著增强了糖化标志物,即使HSA糖化水平较低.
- 在AGEs-Aldo复合体上调节了RAGE,MR,Rac-1和NF-κB的表达.
- 治疗RAGE抗剂表明潜在的RAGE独立路径激活.
结论:
- 阿尔多斯特在促进糖化中起着至关重要的作用.
- 由AGE-Aldo复合体诱导的RAGE-MR交叉触发DN中通过Rac-1引发炎症反应.
- 了解这种相互作用对于开发针对糖尿病脏病的向治疗至关重要.
相关概念视频
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
441
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...
441
Antihypertensive Drugs: Direct Renin Inhibitors
652
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,...
652
Antihypertensive Drugs: Angiotensin II Receptor Blockers
762
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...
762
Hypertension II: Pathophysiology
14
Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
14
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors
677
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...
677
Hormonal Regulation
33.2K
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.
33.2K


