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Título : Reduced calcification and osteogenic features in advanced atherosclerotic plaques of mice with macrophage-specific loss of TRPC3
Autor : Dube, Prabhatchandra R. 
Chikkamenahalli, Lakshmikanth L. 
Birnbaumer, Lutz 
Vazquez, Guillermo 
Palabras clave : ARTERIOESCLEROSISCALCIFICACIONOSTEOGENESISFOSFORILACION
Fecha de publicación : 2018
Editorial : Elsevier
Cita : Dube PR, Chikkamenahalli LL, Birnbaumer L, Vazquez G. Reduced calcification and osteogenic features in advanced atherosclerotic plaques of mice with macrophage-specific loss of TRPC3 [en línea]. Atherosclerosis. 2018;270:199-204. doi:10.1016/j.atherosclerosis.2017.12.025 Disponible en: https://repositorio.uca.edu.ar/handle/123456789/8715
Resumen : Abstract: Background and aims—Recent in vitro studies have showed that in macrophages deletion of the non-selective Ca2+-permeable channel TRPC3 impairs expression of the osteogenic protein BMP-2. The pathophysiological relevance of this effect in atherosclerotic plaque calcification remains to be determined. Methods—We used Ldlr −/− mice with macrophage-specific loss of TRPC3 (MacTrpc3 −/−/Ldlr −/−) to examine the effect of macrophage Trpc3 on plaque calcification and osteogenic features in advanced atherosclerosis. Results—After 25 weeks on high fat diet, aortic root plaques in MacTrpc3 −/−/Ldlr −/− mice showed reduced size, lipid and macrophage content compared to controls. Plaque calcification was decreased in MacTrpc3 −/−/Ldlr −/− mice, and this was accompanied by marked reduction in BMP-2, Runx-2 and phospho-SMAD1/5 contents within macrophage-rich areas. Expression of Bmp-2 and Runx-2 was also reduced in bone marrow-derived macrophages from MacTrpc3 −/−/ Ldlr −/− mice. Conclusions—These findings show that, in advanced atherosclerosis, selective deletion of TRPC3 in macrophages favors plaque regression and impairs the activity of a novel macrophageassociated, BMP-2-dependent mechanism of calcification.
URI : https://repositorio.uca.edu.ar/handle/123456789/8715
ISSN : 0021-9150
1879-1484 (online)
Disciplina: MEDICINA
DOI: 10.1016/j.atherosclerosis.2017.12.025
Derechos: Acceso Abierto. 1 año de embargo
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