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Cited by 171

The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.

Mutual Regulation of Epicardial Adipose Tissue and Myocardial Redox State by PPAR-γ/Adiponectin Signalling

Open access
Antonopoulos, Alexios S., Margaritis, Marios, Verheule, Sander, Recalde, Alice, Sanna, Fabio, Herdman, Laura, Psarros, Costas, Nasrallah, Hussein, Coutinho, Patricia, Akoumianakis, Ioannis, Brewer, Alison C., Sayeed, Rana, Krasopoulos, George, Petrou, Mario, Tarun, Akansha, Tousoulis, Dimitris, Shah, Ajay M., Casadei, Barbara, Channon, Keith M., Antoniades, Charalambos·2016·Circulation Research

Abstract

Rationale: Adiponectin has anti-inflammatory effects in experimental models, but its role in the regulation of myocardial redox state in humans is unknown. Although adiponectin is released from epicardial adipose tissue (EpAT), it is unclear whether it exerts any paracrine effects on the human myocardium. Objective: To explore the cross talk between EpAT-derived adiponectin and myocardial redox state in the human heart. Methods and Results: EpAT and atrial myocardium were obtained from 306 patients undergoing coronary artery bypass grafting. Functional genetic polymorphisms that increase ADIPOQ expression (encoding adiponectin) led to reduced myocardial nicotinamide adenine dinucleotide phosphate oxidase–derived O 2 − , whereas circulating adiponectin and ADIPOQ expression in EpAT were associated with elevated myocardial O 2 − . In human atrial tissue, we demonstrated that adiponectin suppresses myocardial nicotinamide adenine dinucleotide phosphate oxidase activity, by preventing AMP kinase–mediated translocation of Rac1 and p47 phox from the cytosol to the membranes. Induction of O 2 − production in H9C2 cardiac myocytes led to the release of a transferable factor able to induce peroxisome proliferator-activated receptor-γ–mediated upregulation of ADIPOQ expression in cocultured EpAT. Using a NOX2 transgenic mouse and a pig model of rapid atrial pacing, we found that oxidation products (such as 4-hydroxynonenal) released from the heart trigger peroxisome proliferator-activated receptor-γ–mediated upregulation of ADIPOQ in EpAT. Conclusions: We demonstrate for the first time in humans that adiponectin directly decreases myocardial nicotinamide adenine dinucleotide phosphate oxidase activity via endocrine or paracrine effects. Adiponectin expression in EpAT is controlled by paracrine effects of oxidation products released from the heart. These effects constitute a novel defense mechanism of the heart against myocardial oxidative stress.

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Metadata

Authors
Antonopoulos, A. S., Margaritis, M., Verheule, S., Recalde, A., Sanna, F., Herdman, L., Psarros, C., Nasrallah, H., Coutinho, P., Akoumianakis, I., Brewer, A. C., Sayeed, R., Krasopoulos, G., Petrou, M., Tarun, A., Tousoulis, D., Shah, A. M., Casadei, B., Channon, K. M., & Antoniades, C.
Venue
Circulation Research
Published
2016-03-04
Volume
118
Issue
5
Pages
842-855
ISSN
  • 0009-7330 (ISSN-L)
  • 1524-4571
OpenAlex
W2269684859
Cited by
171
References
4
FWCI
14.44
Type
journal article
Language
en
Open access
hybrid

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Antonopoulos, A. S., Margaritis, M., Verheule, S., Recalde, A., Sanna, F., Herdman, L., Psarros, C., Nasrallah, H., Coutinho, P., Akoumianakis, I., Brewer, A. C., Sayeed, R., Krasopoulos, G., Petrou, M., Tarun, A., Tousoulis, D., Shah, A. M., Casadei, B., Channon, K. M., & Antoniades, C. (2016). Mutual Regulation of Epicardial Adipose Tissue and Myocardial Redox State by PPAR-γ/Adiponectin Signalling. Circulation Research. https://doi.org/10.1161/circresaha.115.307856

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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