药理学
医学
信号转导
鸟苷酸环化酶
计算生物学
化学
细胞生物学
生物
生物化学
酶
作者
Paulo Roberto Barbosa Évora,Patrícia Martinez Évora,Andréa Carla Celotto,Alfredo José Rodrigues,Edwaldo Édner Joviliano
出处
期刊:Current Drug Targets
[Bentham Science]
日期:2012-07-01
卷期号:13 (9): 1207-1214
被引量:60
标识
DOI:10.2174/138945012802002348
摘要
In a brief overview, in NO–sGC–cGMP signaling in a blood vessel, l-arginine is converted in the endothelium monolayer by the endothelial nitric oxide synthase (eNOS) to NO which diffuses into both the vessel lumen and the vessel wall, thereby activating soluble guanylate cyclase (sGC). Heme-dependent sGC stimulators and hem-independent sGC activators increase the cellular cGMP concentration via the direct activation of sGC, which results in both vasorelaxation and inhibition of platelet aggregation. Studies of the 90´s definitively established the role of endothelium in all cardiovascular diseases, which were associated with endothelial dysfunction by impaired release of endothelium-derived relaxing factors with consequent risk of spasm and thrombosis. The rationale of this review is based on the fact that the discovery of NO changed the concepts of cardiovascular disease mechanisms. However, considering the jargon "from the bench to clinical practice" we concluded that a potential therapeutic revolution did not follow the pathophysiological revolution. The review is focused on general aspects without regard for advanced research aspects, and designed in two main groups: the NO/cGMP positive stimulators and blockers as "future and encouraging" new therapeutic drugs. The potential vasodilators include 1) NOS uncoupling; 2) NOS enhancers (AVE compounds); 3) NO donors (nitrovasodilators); 4) NOindependent activators (BAY compounds), and; 5) PDE5 inhibitors. The potential vasoconstrictors include 1) NOSblockers (L-NAME, L-NMMA); 2) sGC-blockers (methylene blue), and; 3) PDEs. Few texts, selected by excellence and relevance, were crucial and considerably facilitated the elaboration of this text, in addition to our own experimental and clinical experience working on vasoplegic endothelium dysfunction. Keywords: Nitric oxide, nitric oxide synthase, nitric oxide enhancers, nitric oxide uncoupling, nitric oxide blockers, soluble guanylate cyclase, NO–sGC–cGMP signaling, endothelial dysfunction, cardiovascular disease, stimulators
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