Chronic Hydroxychloroquine Improves Endothelial Dysfunction and Protects Kidney in a Mouse Model of Systemic Lupus Erythematosus

Hydroxychloroquine has been shown to be efficacious in the treatment of autoimmune diseases, including systemic lupus erythematosus. Hydroxychloroquine-treated lupus patients showed a lower incidence of thromboembolic disease. Endothelial dysfunction, the earliest indicator of the development of car...

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Veröffentlicht in:Hypertension (Dallas, Tex. 1979) Tex. 1979), 2014-08, Vol.64 (2), p.330-337
Hauptverfasser: Gómez-Guzmán, Manuel, Jiménez, Rosario, Romero, Miguel, Sánchez, Manuel, Zarzuelo, María José, Gómez-Morales, Mercedes, O’Valle, Francisco, López-Farré, Antonio José, Algieri, Francesca, Gálvez, Julio, Pérez-Vizcaino, Francisco, Sabio, José Mario, Duarte, Juan
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container_issue 2
container_start_page 330
container_title Hypertension (Dallas, Tex. 1979)
container_volume 64
creator Gómez-Guzmán, Manuel
Jiménez, Rosario
Romero, Miguel
Sánchez, Manuel
Zarzuelo, María José
Gómez-Morales, Mercedes
O’Valle, Francisco
López-Farré, Antonio José
Algieri, Francesca
Gálvez, Julio
Pérez-Vizcaino, Francisco
Sabio, José Mario
Duarte, Juan
description Hydroxychloroquine has been shown to be efficacious in the treatment of autoimmune diseases, including systemic lupus erythematosus. Hydroxychloroquine-treated lupus patients showed a lower incidence of thromboembolic disease. Endothelial dysfunction, the earliest indicator of the development of cardiovascular disease, is present in lupus. Whether hydroxychloroquine improves endothelial function in lupus is not clear. The aim of this study was to analyze the effects of hydroxychloroquine on hypertension, endothelial dysfunction, and renal injury in a female mouse model of lupus. NZBWF1 (lupus) and NZW/LacJ (control) mice were treated with hydroxychloroquine 10 mg/kg per day by oral gavage, or with tempol and apocynin in the drinking water, for 5 weeks. Hydroxychloroquine treatment did not alter lupus disease activity (assessed by plasma double-stranded DNA autoantibodies) but prevented hypertension, cardiac and renal hypertrophy, proteinuria, and renal injury in lupus mice. Aortae from lupus mice showed reduced endothelium-dependent vasodilator responses to acetylcholine and enhanced contraction to phenylephrine, which were normalized by hydroxychloroquine or antioxidant treatments. No differences among all experimental groups were found in both the relaxant responses to acetylcholine and the contractile responses to phenylephrine in rings incubated with the nitric oxide synthase inhibitor N-nitro-L-arginine methyl ester. Vascular reactive oxygen species content and mRNA levels of nicotinamide adenine dinucleotide phosphate oxidase subunits NOX-1 and p47 were increased in lupus mice and reduced by hydroxychloroquine or antioxidants. Chronic hydroxychloroquine treatment reduced hypertension, endothelial dysfunction, and organ damage in severe lupus mice, despite the persistent elevation of anti–double-stranded DNA, suggesting the involvement of new additional mechanisms to improve cardiovascular complications.
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Hydroxychloroquine-treated lupus patients showed a lower incidence of thromboembolic disease. Endothelial dysfunction, the earliest indicator of the development of cardiovascular disease, is present in lupus. Whether hydroxychloroquine improves endothelial function in lupus is not clear. The aim of this study was to analyze the effects of hydroxychloroquine on hypertension, endothelial dysfunction, and renal injury in a female mouse model of lupus. NZBWF1 (lupus) and NZW/LacJ (control) mice were treated with hydroxychloroquine 10 mg/kg per day by oral gavage, or with tempol and apocynin in the drinking water, for 5 weeks. Hydroxychloroquine treatment did not alter lupus disease activity (assessed by plasma double-stranded DNA autoantibodies) but prevented hypertension, cardiac and renal hypertrophy, proteinuria, and renal injury in lupus mice. Aortae from lupus mice showed reduced endothelium-dependent vasodilator responses to acetylcholine and enhanced contraction to phenylephrine, which were normalized by hydroxychloroquine or antioxidant treatments. No differences among all experimental groups were found in both the relaxant responses to acetylcholine and the contractile responses to phenylephrine in rings incubated with the nitric oxide synthase inhibitor N-nitro-L-arginine methyl ester. Vascular reactive oxygen species content and mRNA levels of nicotinamide adenine dinucleotide phosphate oxidase subunits NOX-1 and p47 were increased in lupus mice and reduced by hydroxychloroquine or antioxidants. 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Vascular system ; Disease Models, Animal ; Endothelium, Vascular - drug effects ; Endothelium, Vascular - physiopathology ; Enzyme Inhibitors - pharmacology ; Enzyme Inhibitors - therapeutic use ; Female ; Hydroxychloroquine - pharmacology ; Hydroxychloroquine - therapeutic use ; Hypertension - complications ; Hypertension - drug therapy ; Hypertension - physiopathology ; Kidney - drug effects ; Kidney - physiopathology ; Kidneys ; Lupus Erythematosus, Systemic - complications ; Lupus Erythematosus, Systemic - drug therapy ; Lupus Erythematosus, Systemic - physiopathology ; Medical sciences ; Mice ; Nephrology. Urinary tract diseases ; Pharmacology. Drug treatments ; Sarcoidosis. Granulomatous diseases of unproved etiology. Connective tissue diseases. Elastic tissue diseases. Vasculitis ; Urinary system involvement in other diseases. 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Aortae from lupus mice showed reduced endothelium-dependent vasodilator responses to acetylcholine and enhanced contraction to phenylephrine, which were normalized by hydroxychloroquine or antioxidant treatments. No differences among all experimental groups were found in both the relaxant responses to acetylcholine and the contractile responses to phenylephrine in rings incubated with the nitric oxide synthase inhibitor N-nitro-L-arginine methyl ester. Vascular reactive oxygen species content and mRNA levels of nicotinamide adenine dinucleotide phosphate oxidase subunits NOX-1 and p47 were increased in lupus mice and reduced by hydroxychloroquine or antioxidants. 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Vascular system</subject><subject>Disease Models, Animal</subject><subject>Endothelium, Vascular - drug effects</subject><subject>Endothelium, Vascular - physiopathology</subject><subject>Enzyme Inhibitors - pharmacology</subject><subject>Enzyme Inhibitors - therapeutic use</subject><subject>Female</subject><subject>Hydroxychloroquine - pharmacology</subject><subject>Hydroxychloroquine - therapeutic use</subject><subject>Hypertension - complications</subject><subject>Hypertension - drug therapy</subject><subject>Hypertension - physiopathology</subject><subject>Kidney - drug effects</subject><subject>Kidney - physiopathology</subject><subject>Kidneys</subject><subject>Lupus Erythematosus, Systemic - complications</subject><subject>Lupus Erythematosus, Systemic - drug therapy</subject><subject>Lupus Erythematosus, Systemic - physiopathology</subject><subject>Medical sciences</subject><subject>Mice</subject><subject>Nephrology. Urinary tract diseases</subject><subject>Pharmacology. 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Antiinfectious agents. Antiparasitic agents</topic><topic>Antiparasitic agents</topic><topic>Arterial hypertension. Arterial hypotension</topic><topic>Biological and medical sciences</topic><topic>Blood and lymphatic vessels</topic><topic>Blood Pressure - drug effects</topic><topic>Cardiology. 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subjects Acute Kidney Injury - drug therapy
Acute Kidney Injury - physiopathology
Acute Kidney Injury - prevention & control
Animals
Antibiotics. Antiinfectious agents. Antiparasitic agents
Antiparasitic agents
Arterial hypertension. Arterial hypotension
Biological and medical sciences
Blood and lymphatic vessels
Blood Pressure - drug effects
Cardiology. Vascular system
Disease Models, Animal
Endothelium, Vascular - drug effects
Endothelium, Vascular - physiopathology
Enzyme Inhibitors - pharmacology
Enzyme Inhibitors - therapeutic use
Female
Hydroxychloroquine - pharmacology
Hydroxychloroquine - therapeutic use
Hypertension - complications
Hypertension - drug therapy
Hypertension - physiopathology
Kidney - drug effects
Kidney - physiopathology
Kidneys
Lupus Erythematosus, Systemic - complications
Lupus Erythematosus, Systemic - drug therapy
Lupus Erythematosus, Systemic - physiopathology
Medical sciences
Mice
Nephrology. Urinary tract diseases
Pharmacology. Drug treatments
Sarcoidosis. Granulomatous diseases of unproved etiology. Connective tissue diseases. Elastic tissue diseases. Vasculitis
Urinary system involvement in other diseases. Miscellaneous
title Chronic Hydroxychloroquine Improves Endothelial Dysfunction and Protects Kidney in a Mouse Model of Systemic Lupus Erythematosus
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