The mitochondria-targeted antioxidant MitoQ modulates oxidative stress, inflammation and leukocyte-endothelium interactions in leukocytes isolated from type 2 diabetic patients
Por:
Escribano-Lopez I, Diaz-Morales N, Rovira-Llopis S, de Marañon AM, Orden S, Alvarez A, Bañuls C, Rocha M, Murphy MP, Hernandez-Mijares A and Victor VM
Publicada:
1 dic 2016
Resumen:
It is not known if the mitochondria-targeted antioxidants such as mitoquinone (MitoQ) can modulate oxidative stress and leukocyte-endothelium interactions in T2D patients.
We aimed to evaluate the beneficial effect of MitoQ on oxidative stress parameters and leukocyte-endothelium interactions in leukocytes of T2D patients.
The study population consisted of 98 T2D patients and 71 control subjects. We assessed metabolic and anthropometric parameters, mitochondrial reactive oxygen species (ROS) production, glutathione peroxidase 1 (GPX-1), NF kappa B-p65, TNF alpha and leukocyte-endothelium interactions.
Diabetic patients exhibited higher weight, BMI, waist circumference, SBP, DBP, glucose, insulin, HOMA-IR, HbA1c, triglycerides, hs-CRP and lower HDL-c with respect to controls.
Mitochondrial ROS production was enhanced in T2D patients and decreased by MitoQ. The antioxidant also increased GPX-1 levels and PMN rolling velocity and decreased PMN rolling flux and PMN adhesion in T2D patients. NF kappa B-p65 and TNF alpha were augmented in T2D and were both reduced by MitoQ treatment.
Our findings support that the antioxidant MitoQ has an anti-inflammatory and antioxidant action in the leukocytes of T2D patients by decreasing ROS production, leukocyte-endothelium interactions and TNF alpha through the action of NF kappa B. These data suggest that mitochondria-targeted antioxidants such as MitoQ should be investigated as a novel means of preventing cardiovascular events in T2D patients.
Filiaciones:
:
Service of Endocrinology, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
:
Service of Endocrinology, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
:
Institute of Health Research INCLIVA, University of Valencia, Valencia, Spain
:
Service of Endocrinology, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
Orden S:
CIBERehd - Department of Pharmacology and Physiology, University of Valencia, Valencia, Spain
Alvarez A:
CIBERehd - Department of Pharmacology and Physiology, University of Valencia, Valencia, Spain
:
Institute of Health Research INCLIVA, University of Valencia, Valencia, Spain
:
CIBERehd - Department of Pharmacology and Physiology, University of Valencia, Valencia, Spain
Murphy MP:
MRC Mitochondrial Biology Unit, Cambridge, United Kingdom
:
Department of Medicine, University of Valencia, Valencia, Spain
:
Department of Physiology, University of Valencia, Valencia, Spain.
gold, Green Published
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