Abstract
The involvement of Chromogranin A (CgA) in the cardiovascular function regulation is attributed to its function as a prohormone. Several studies indicated that CgA-derived peptides, particularly Vasostatin-1 (VS-1) and Catestatin (CST), exert signaling effects in numerous organs/systems, including the cardiovascular system.
This review focuses on the recently described signaling pathways activated by VS-1 and CST, giving insights into the mechanisms at the basis of their cardiac negative inotropic action, their vasodilator effects and their cardioprotective role observed in different experimental conditions.
Accumulated evidences provided convincing support for VS-1 and CST as vasoactive peptides indirectly acting on cardiomyocytes through a Ca2+-independent/PI3-K-dependent NO release from endothelial cells. This pathway is supposed to be triggered by the interaction of these peptides with the plasma membrane. The premise of these studies grounds on the biochemical features of VS-1 and CST, which are structurally characterized by amphipathic properties and the ability to interact with mammalian and microbial membranes. On the other hand, recent data obtained in both isolated heart and isolated cardiomyocytes suggest that the VS-1 and CSTmediated cardioprotective effects are primarily direct on the myocardium, rather than endothelium-dependent. Anyway, both direct and indirect pathways seem to be characterized by the absence of specific membrane receptors on target cells, highlighting intriguing novelties in the topic of cell signaling, in particular respect to an hypothetical receptor-independent eNOS activation.
Keywords: Cardiomyocyte, Chromogranin-A, Vasostatin-1, Catestatin, Endothelial cell, Nitric oxide, diovascular functio, CgA-derived peptides, numerous organs/systems, cardioprotectiv.
Current Medicinal Chemistry
Title:Endothelium Dependent Cardiovascular Effects of the Chromogranin A-Derived Peptides Vasostatin-1 and Catestatin
Volume: 19 Issue: 24
Author(s): S. Fornero, E. Bassino, M. P. Gallo, R. Ramella, R. Levi and G. Alloatti
Affiliation:
Keywords: Cardiomyocyte, Chromogranin-A, Vasostatin-1, Catestatin, Endothelial cell, Nitric oxide, diovascular functio, CgA-derived peptides, numerous organs/systems, cardioprotectiv.
Abstract: The involvement of Chromogranin A (CgA) in the cardiovascular function regulation is attributed to its function as a prohormone. Several studies indicated that CgA-derived peptides, particularly Vasostatin-1 (VS-1) and Catestatin (CST), exert signaling effects in numerous organs/systems, including the cardiovascular system.
This review focuses on the recently described signaling pathways activated by VS-1 and CST, giving insights into the mechanisms at the basis of their cardiac negative inotropic action, their vasodilator effects and their cardioprotective role observed in different experimental conditions.
Accumulated evidences provided convincing support for VS-1 and CST as vasoactive peptides indirectly acting on cardiomyocytes through a Ca2+-independent/PI3-K-dependent NO release from endothelial cells. This pathway is supposed to be triggered by the interaction of these peptides with the plasma membrane. The premise of these studies grounds on the biochemical features of VS-1 and CST, which are structurally characterized by amphipathic properties and the ability to interact with mammalian and microbial membranes. On the other hand, recent data obtained in both isolated heart and isolated cardiomyocytes suggest that the VS-1 and CSTmediated cardioprotective effects are primarily direct on the myocardium, rather than endothelium-dependent. Anyway, both direct and indirect pathways seem to be characterized by the absence of specific membrane receptors on target cells, highlighting intriguing novelties in the topic of cell signaling, in particular respect to an hypothetical receptor-independent eNOS activation.
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Cite this article as:
Fornero S., Bassino E., P. Gallo M., Ramella R., Levi R. and Alloatti G., Endothelium Dependent Cardiovascular Effects of the Chromogranin A-Derived Peptides Vasostatin-1 and Catestatin, Current Medicinal Chemistry 2012; 19 (24) . https://dx.doi.org/10.2174/092986712802429984
DOI https://dx.doi.org/10.2174/092986712802429984 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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