Nitric oxide: To be or not to be an endocrine hormone?
Tóm tắt
Nitric oxide (NO), a highly reactive gasotransmitter, is critical for a number of cellular processes and has multiple biological functions. Due to its limited lifetime and diffusion distance, NO has been mainly believed to act in autocrine/paracrine fashion. The increasingly recognized effects of pharmacologically delivered and endogenous NO at a distant site have changed the conventional wisdom and introduced NO as an endocrine signalling molecule. The notion is greatly supported by the detection of a number of NO adducts and their circulatory cycles, which in turn contribute to the transport and delivery of NO bioactivity, remote from the sites of its synthesis. The existence of endocrine sites of synthesis, negative feedback regulation of biosynthesis, integrated storage and transport systems, having an exclusive receptor, that is, soluble guanylyl cyclase (sGC), and organized circadian rhythmicity make NO something beyond a simple autocrine/paracrine signalling molecule that could qualify for being an endocrine signalling molecule. Here, we discuss hormonal features of NO from the classical endocrine point of view and review available knowledge supporting NO as a true endocrine hormone. This new insight can provide a new framework within which to reinterpret NO biology and its clinical applications.
Từ khóa
Tài liệu tham khảo
Ghasemi A, 2011, Is nitric oxide a hormone?, Iran Biomed J, 15, 59
Modin A, 2001, Nitrite‐derived nitric oxide: a possible mediator of 'acidic‐metabolic' vasodilation, Acta Physiol Scand, 171, 9
Doctor A, 2011, Nitric oxide transport in blood: a third gas in the respiratory cycle, Comp Physiol, 1, 541, 10.1002/cphy.c090009
Ghasemi A, 2012, Preanalytical and analytical considerations for measuring nitric oxide metabolites in serum or plasma using the Griess method, Clin Lab, 58, 615
Schmid‐Schönbein H, 1979, Quantitative Cardiovascular Studies: Clinical Research Application of Engineering Principles, 353
Murad F, 1998, Nitric oxide signaling: would you believe that a simple free radical could be a second messenger, autacoid, paracrine substance, neurotransmitter, and hormone?, Recent Prog Horm Res, 53, 43
Dressel H, 2008, Diurnal variation of nasal nitric oxide levels in healthy subjects, J Investig Allergol Clin Immunol, 18, 316
Bode‐Boger SM, 2000, Role of endogenous nitric oxide in circadian blood pressure regulation in healthy humans and in patients with hypertension or atherosclerosis, J Investig Med, 48, 125
Herring N, 2018, Levick's Introduction to Cardiovascular Physiology