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Título: | Adult Dirofilaria immitis excretory/secretory antigens upregulate the production of prostaglandin E2 and downregulate monocyte transmigration in an "in vitro" model of vascular endothelial cell cultures |
Autor: | Morchón, Rodrigo; González Miguel, Javier CSIC ORCID ; Mellado, Isabel; Velasco, S.; Rodríguez-Barbero, A.; Simón Martín, Fernando | Palabras clave: | COX-2 Dirofilaria immitis Monocyte migration PGE 2 Vascular endothelial cells |
Tesauro AGROVOC: | Dirofilaria immitis | Fecha de publicación: | 2010 | Editor: | Elsevier | Citación: | Veterinary Parasitology 170 (3-4): 331-335 (2010) | Resumen: | Canine and feline cardiopulmonary dirofilariosis caused by Dirofilaria immitis is a chronic and potentially fatal disease. Adult worms live in the pulmonary arteries of infected immunocompetent hosts for years. The aim of the present study is the identification of the influence of the metabolic products (excretory/secretory antigens, DiE/S) of D. immitis on the vascular endothelial cells, because the vascular endothelium interplays in a direct manner with the parasite and their products. For this purpose, HAAE-1 vascular endothelial cells were treated with DiE/S, using non-treated cultures as negative controls. Significant increases in the COX-2, 5-LO expression and PGE(2) level were detected in the treated cells compared with the control cells. Moreover, DiE/S decreases monocyte transmigrations across vascular endothelial cell monolayers. Treatment with DiE/S does not have a cytotoxic effect and do not alter apoptosis, necrosis or cell cycle of vascular endothelial cells. These results suggest that the DiE/S stimulates the production of mediators and mechanisms that favor the survival of the parasite, in vascular endothelial cells, contributing to restrict vascular and lung damages in the infected host, without altering the basic physiologic processes of endothelial cells. | Descripción: | 8 páginas, 2 figuras | Versión del editor: | http://dx.doi.org/10.1016/j.vetpar.2010.02.034 | URI: | http://hdl.handle.net/10261/345098 | DOI: | 10.1016/j.vetpar.2010.02.034 | ISSN: | 0304-4017 |
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