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Challa AA, Vidal P, Maurya SK, Maurya CK, Baer LA, Wang Y, James NM, Pardeshi PJ, Fasano M, Carley AN, Stanford KI, Lewandowski ED. UCP1-dependent brown adipose activation accelerates cardiac metabolic remodeling and reduces initial hypertrophic and fibrotic responses to pathological stress. FASEB J 2024; 38:e23709. [PMID: 38809700 PMCID: PMC11163965 DOI: 10.1096/fj.202400922r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/06/2024] [Accepted: 05/16/2024] [Indexed: 05/31/2024]
Abstract
Brown adipose tissue (BAT) is correlated to cardiovascular health in rodents and humans, but the physiological role of BAT in the initial cardiac remodeling at the onset of stress is unknown. Activation of BAT via 48 h cold (16°C) in mice following transverse aortic constriction (TAC) reduced cardiac gene expression for LCFA uptake and oxidation in male mice and accelerated the onset of cardiac metabolic remodeling, with an early isoform shift of carnitine palmitoyltransferase 1 (CPT1) toward increased CPT1a, reduced entry of long chain fatty acid (LCFA) into oxidative metabolism (0.59 ± 0.02 vs. 0.72 ± 0.02 in RT TAC hearts, p < .05) and increased carbohydrate oxidation with altered glucose transporter content. BAT activation with TAC reduced early hypertrophic expression of β-MHC by 61% versus RT-TAC and reduced pro-fibrotic TGF-β1 and COL3α1 expression. While cardiac natriuretic peptide expression was yet to increase at only 3 days TAC, Nppa and Nppb expression were elevated in Cold TAC versus RT TAC hearts 2.7- and 2.4-fold, respectively. Eliminating BAT thermogenic activation with UCP1 KO mice eliminated differences between Cold TAC and RT TAC hearts, confirming effects of BAT activation rather than autonomous cardiac responses to cold. Female responses to BAT activation were blunted, with limited UCP1 changes with cold, partly due to already activated BAT in females at RT compared to thermoneutrality. These data reveal a previously unknown physiological mechanism of UCP1-dependent BAT activation in attenuating early cardiac hypertrophic and profibrotic signaling and accelerating remodeled metabolic activity in the heart at the onset of cardiac stress.
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Affiliation(s)
- Azariyas A. Challa
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Pablo Vidal
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - Santosh K. Maurya
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Chandan K. Maurya
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Lisa A. Baer
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - Yang Wang
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Natasha Maria James
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - Parth J. Pardeshi
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - Matthew Fasano
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Andrew N. Carley
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
| | - Kristin I. Stanford
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, Ohio State University. Columbus, OH., 43210, USA
- Department of Surgery, General and Gastrointestinal Surgery, College of Medicine, The Ohio State University. Columbus, OH., 43210, USA
| | - E. Douglas Lewandowski
- Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
- Davis Heart and Lung Research Institute and Department of Internal Medicine, College of Medicine, Ohio State University. Columbus, OH, 43210, USA
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2
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Shi Z, Xiong S, Hu R, Wang Z, Park J, Qian Y, Wang J, Bhalla P, Velupally N, Song Q, Song Z, Jeon MS, Zhang KK, Xie L, Layden BT, Ong SG, Jiang Y. The Notch-PDGFRβ axis suppresses brown adipocyte progenitor differentiation in early post-natal mice. Dev Cell 2024; 59:1233-1251.e5. [PMID: 38569546 DOI: 10.1016/j.devcel.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 12/08/2023] [Accepted: 03/08/2024] [Indexed: 04/05/2024]
Abstract
De novo brown adipogenesis holds potential in combating the epidemics of obesity and diabetes. However, the identity of brown adipocyte progenitor cells (APCs) and their regulation have not been extensively explored. Here, through in vivo lineage tracing and mouse modeling, we observed that platelet-derived growth factor receptor beta (PDGFRβ)+ pericytes give rise to developmental brown adipocytes but not to those in adult homeostasis. By contrast, T-box 18 (TBX18)+ pericytes contribute to brown adipogenesis throughout both developmental and adult stages, though in a depot-specific manner. Mechanistically, Notch inhibition in PDGFRβ+ pericytes promotes brown adipogenesis by downregulating PDGFRβ. Furthermore, inhibition of Notch signaling in PDGFRβ+ pericytes mitigates high-fat, high-sucrose (HFHS)-induced glucose and metabolic impairment in mice during their development and juvenile phases. Collectively, these findings show that the Notch/PDGFRβ axis negatively regulates developmental brown adipogenesis, and its repression promotes brown adipose tissue expansion and improves metabolic health.
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Affiliation(s)
- Zuoxiao Shi
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA; Department of Pharmaceutical Sciences, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Shaolei Xiong
- Department of Microbiology and Immunology, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Ruoci Hu
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA; Department of Pharmaceutical Sciences, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Zilai Wang
- Department of Microbiology and Immunology, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Jooman Park
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Yanyu Qian
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Jaden Wang
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Pratibha Bhalla
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Nipun Velupally
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Qing Song
- Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Zhenyuan Song
- Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Minsun Stacey Jeon
- Texas A&M Health Science Center, Institute of Biosciences and Technology, Houston, TX 77030, USA
| | - Ke Kurt Zhang
- Texas A&M Health Science Center, Institute of Biosciences and Technology, Houston, TX 77030, USA
| | - Linlin Xie
- Department of Nutrition, Texas A&M University, College Station, TX 77845, USA
| | - Brian T Layden
- Division of Endocrinology, Department of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA; Jesse Brown Medical VA Medical Center, Chicago, IL 60612, USA
| | - Sang-Ging Ong
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA; Division of Cardiology, Department of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Yuwei Jiang
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA; Department of Pharmaceutical Sciences, University of Illinois Chicago, Chicago, IL 60612, USA; Division of Endocrinology, Department of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA.
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3
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Milyukov VE, Bryukhanov VA, Nguyen CC. [Morphofunctional Analysis of the Role of Epicardial Adipose Tissue in the Formation of the Obesity Paradox in Chronic Heart Failure]. KARDIOLOGIIA 2024; 64:72-80. [PMID: 38597765 DOI: 10.18087/cardio.2024.3.n2469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/31/2023] [Accepted: 06/15/2023] [Indexed: 04/11/2024]
Abstract
Based on the available modern medical literature, the article summarizes data on the morpho-functional significance of epicardial adipose tissue (EAT) in health and heart failure, analyzes the likelihood and reliability of the formation of the obesity paradox, and also discusses its possible morpho-functional mechanisms. The authors reviewed and analyzed the consequences of the obesity paradox in the aspect of the normal EAT phenotype protectivity. The review proposed ways of further research in this direction aimed at a deep anatomical and physiological analysis and at determining the morpho-functional role of EAT in the adaptive mechanisms of myocardial trophic provision, which may be an important part of the pathogenetic connection between obesity and CHF and, therefore, can improve outcomes in such patients.
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Affiliation(s)
- V E Milyukov
- Pirogov Russian National Research Medical University
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4
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Krauz K, Kempiński M, Jańczak P, Momot K, Zarębiński M, Poprawa I, Wojciechowska M. The Role of Epicardial Adipose Tissue in Acute Coronary Syndromes, Post-Infarct Remodeling and Cardiac Regeneration. Int J Mol Sci 2024; 25:3583. [PMID: 38612394 PMCID: PMC11011833 DOI: 10.3390/ijms25073583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
Epicardial adipose tissue (EAT) is a fat deposit surrounding the heart and located under the visceral layer of the pericardium. Due to its unique features, the contribution of EAT to the pathogenesis of cardiovascular and metabolic disorders is extensively studied. Especially, EAT can be associated with the onset and development of coronary artery disease, myocardial infarction and post-infarct heart failure which all are significant problems for public health. In this article, we focus on the mechanisms of how EAT impacts acute coronary syndromes. Particular emphasis was placed on the role of inflammation and adipokines secreted by EAT. Moreover, we present how EAT affects the remodeling of the heart following myocardial infarction. We further review the role of EAT as a source of stem cells for cardiac regeneration. In addition, we describe the imaging assessment of EAT, its prognostic value, and its correlation with the clinical characteristics of patients.
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Affiliation(s)
- Kamil Krauz
- Chair and Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1b, 02-097 Warsaw, Poland; (K.K.); (M.K.); (P.J.); (K.M.)
| | - Marcel Kempiński
- Chair and Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1b, 02-097 Warsaw, Poland; (K.K.); (M.K.); (P.J.); (K.M.)
| | - Paweł Jańczak
- Chair and Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1b, 02-097 Warsaw, Poland; (K.K.); (M.K.); (P.J.); (K.M.)
| | - Karol Momot
- Chair and Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1b, 02-097 Warsaw, Poland; (K.K.); (M.K.); (P.J.); (K.M.)
| | - Maciej Zarębiński
- Department of Invasive Cardiology, Independent Public Specialist Western Hospital John Paul II, Lazarski University, Daleka 11, 05-825 Grodzisk Mazowiecki, Poland; (M.Z.); (I.P.)
| | - Izabela Poprawa
- Department of Invasive Cardiology, Independent Public Specialist Western Hospital John Paul II, Lazarski University, Daleka 11, 05-825 Grodzisk Mazowiecki, Poland; (M.Z.); (I.P.)
| | - Małgorzata Wojciechowska
- Chair and Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1b, 02-097 Warsaw, Poland; (K.K.); (M.K.); (P.J.); (K.M.)
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Romero-Becera R, Santamans AM, Arcones AC, Sabio G. From Beats to Metabolism: the Heart at the Core of Interorgan Metabolic Cross Talk. Physiology (Bethesda) 2024; 39:98-125. [PMID: 38051123 DOI: 10.1152/physiol.00018.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/26/2023] [Accepted: 12/01/2023] [Indexed: 12/07/2023] Open
Abstract
The heart, once considered a mere blood pump, is now recognized as a multifunctional metabolic and endocrine organ. Its function is tightly regulated by various metabolic processes, at the same time it serves as an endocrine organ, secreting bioactive molecules that impact systemic metabolism. In recent years, research has shed light on the intricate interplay between the heart and other metabolic organs, such as adipose tissue, liver, and skeletal muscle. The metabolic flexibility of the heart and its ability to switch between different energy substrates play a crucial role in maintaining cardiac function and overall metabolic homeostasis. Gaining a comprehensive understanding of how metabolic disorders disrupt cardiac metabolism is crucial, as it plays a pivotal role in the development and progression of cardiac diseases. The emerging understanding of the heart as a metabolic and endocrine organ highlights its essential contribution to whole body metabolic regulation and offers new insights into the pathogenesis of metabolic diseases, such as obesity, diabetes, and cardiovascular disorders. In this review, we provide an in-depth exploration of the heart's metabolic and endocrine functions, emphasizing its role in systemic metabolism and the interplay between the heart and other metabolic organs. Furthermore, emerging evidence suggests a correlation between heart disease and other conditions such as aging and cancer, indicating that the metabolic dysfunction observed in these conditions may share common underlying mechanisms. By unraveling the complex mechanisms underlying cardiac metabolism, we aim to contribute to the development of novel therapeutic strategies for metabolic diseases and improve overall cardiovascular health.
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Affiliation(s)
| | | | - Alba C Arcones
- Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain
- Centro Nacional de Investigaciones Oncológicas, Madrid, Spain
| | - Guadalupe Sabio
- Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain
- Centro Nacional de Investigaciones Oncológicas, Madrid, Spain
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Quan Y, Lu F, Zhang Y. Use of brown adipose tissue transplantation and engineering as a thermogenic therapy in obesity and metabolic disease. Obes Rev 2024; 25:e13677. [PMID: 38114233 DOI: 10.1111/obr.13677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/08/2023] [Accepted: 10/18/2023] [Indexed: 12/21/2023]
Abstract
The induction of thermogenesis in brown adipose tissue is emerging as an attractive therapy for obesity and metabolic syndrome. However, the long-term efficacy and safety of clinical pharmaceutical agents have yet to be fully characterized. The transplantation of brown adipose tissue represents an alternative approach that might have a therapeutic effect by inducing a long-term increase in energy expenditure. However, limited tissue resources hinder the development of transplantation. Stem cell-based therapy and brown adipose tissue engineering, in addition to transplantation, represent alternative approaches that might resolve this problem. In this article, we discuss recent advances in understanding the mechanisms and applications of brown adipose tissue transplantation in the treatment of obesity and related metabolic disorders. Specifically, the induction of brown adipocytes and the fabrication of engineered brown adipose tissue as novel transplantation resources have long-term effects on ameliorating metabolic defects in rodent models. Additionally, we explore future prospects regarding the development of three-dimensional engineered brown adipose tissue and the associated challenges.
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Affiliation(s)
- Yuping Quan
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Department of Plastic Surgery and Regenerative Medicine, Fujian Medical University Union Hospital, Fuzhou, China
| | - Feng Lu
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuteng Zhang
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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7
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Slart RHJA, Bengel FM, Akincioglu C, Bourque JM, Chen W, Dweck MR, Hacker M, Malhotra S, Miller EJ, Pelletier-Galarneau M, Packard RRS, Schindler TH, Weinberg RL, Saraste A, Slomka PJ. Total-Body PET/CT Applications in Cardiovascular Diseases: A Perspective Document of the SNMMI Cardiovascular Council. J Nucl Med 2024:jnumed.123.266858. [PMID: 38388512 DOI: 10.2967/jnumed.123.266858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/11/2024] [Indexed: 02/24/2024] Open
Abstract
Digital PET/CT systems with a long axial field of view have become available and are emerging as the current state of the art. These new camera systems provide wider anatomic coverage, leading to major increases in system sensitivity. Preliminary results have demonstrated improvements in image quality and quantification, as well as substantial advantages in tracer kinetic modeling from dynamic imaging. These systems also potentially allow for low-dose examinations and major reductions in acquisition time. Thereby, they hold great promise to improve PET-based interrogation of cardiac physiology and biology. Additionally, the whole-body coverage enables simultaneous assessment of multiple organs and the large vascular structures of the body, opening new opportunities for imaging systemic mechanisms, disorders, or treatments and their interactions with the cardiovascular system as a whole. The aim of this perspective document is to debate the potential applications, challenges, opportunities, and remaining challenges of applying PET/CT with a long axial field of view to the field of cardiovascular disease.
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Affiliation(s)
- Riemer H J A Slart
- Medical Imaging Centre, Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
- Biomedical Photonic Imaging Group, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Frank M Bengel
- Department of Nuclear Medicine, Hannover Medical School, Hannover, Germany
| | - Cigdem Akincioglu
- Division of Nuclear Medicine, Medical Imaging, Western University, London, Ontario, Canada
| | - Jamieson M Bourque
- Departments of Medicine (Cardiology) and Radiology, University of Virginia, Charlottesville, Virginia
| | - Wengen Chen
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Marc R Dweck
- British Heart Foundation Centre for Cardiovascular Science, Edinburgh Heart Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Marcus Hacker
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | | | - Edward J Miller
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut; Department of Radiology and Biomedical Imaging, Yale School of Medicine, and Department of Internal Medicine, Yale University, New Haven, Connecticut
| | | | - René R S Packard
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Thomas H Schindler
- Mallinckrodt Institute of Radiology, Division of Nuclear Medicine, Cardiovascular Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Richard L Weinberg
- Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Antti Saraste
- Turku PET Centre and Heart Center, Turku University Hospital and University of Turku, Turku, Finland; and
| | - Piotr J Slomka
- Division of Artificial Intelligence in Medicine, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
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8
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Pfeifer A, Mikhael M, Niemann B. Inosine: novel activator of brown adipose tissue and energy homeostasis. Trends Cell Biol 2024; 34:72-82. [PMID: 37188562 DOI: 10.1016/j.tcb.2023.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/17/2023]
Abstract
Extracellular purinergic molecules act as signaling molecules that bind to cellular receptors and regulate signaling pathways. Growing evidence suggests that purines regulate adipocyte function and whole-body metabolism. Here, we focus on one specific purine: inosine. Brown adipocytes, which are important regulators of whole-body energy expenditure (EE), release inosine when they are stressed or become apoptotic. Unexpectedly, inosine activates EE in neighboring brown adipocytes and enhances differentiation of brown preadipocytes. Increasing extracellular inosine, either directly by increasing inosine intake or indirectly via pharmacological inhibition of cellular inosine transporters, increases whole-body EE and counteracts obesity. Thus, inosine and other closely related purines might be a novel approach to tackle obesity and associated metabolic disorders by enhancing EE.
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Affiliation(s)
- Alexander Pfeifer
- Institute of Pharmacology and Toxicology, University Hospital, University of Bonn, Bonn, Germany.
| | - Mickel Mikhael
- Institute of Pharmacology and Toxicology, University Hospital, University of Bonn, Bonn, Germany
| | - Birte Niemann
- Institute of Pharmacology and Toxicology, University Hospital, University of Bonn, Bonn, Germany
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Martí-Pàmies Í, Thoonen R, Morley M, Graves L, Tamez J, Caplan A, McDaid K, Yao V, Hindle A, Gerszten RE, Laurie A. Farrell, Li L, Tseng YH, Profeta G, Buys ES, Bloch DB, Scherrer-Crosbie M. Brown Adipose Tissue and BMP3b Decrease Injury in Cardiac Ischemia-Reperfusion. Circ Res 2023; 133:353-365. [PMID: 37462036 PMCID: PMC10528340 DOI: 10.1161/circresaha.122.322337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 07/07/2023] [Indexed: 08/05/2023]
Abstract
BACKGROUND Despite advances in treatment, myocardial infarction (MI) is a leading cause of heart failure and death worldwide, with both ischemia and reperfusion (I/R) causing cardiac injury. A previous study using a mouse model of nonreperfused MI showed activation of brown adipose tissue (BAT). Recent studies showed that molecules secreted by BAT target the heart. We investigated whether BAT attenuates cardiac injury in I/R and sought to identify potential cardioprotective proteins secreted by BAT. METHODS Myocardial I/R surgery with or without BAT transplantation was performed in wild-type (WT) mice and in mice with impaired BAT function (uncoupling protein 1 [Ucp1]-deficient mice). To identify potential cardioprotective factors produced by BAT, RNA-seq (RNA sequencing) was performed in BAT from WT and Ucp1-/- mice. Subsequently, myocardial I/R surgery with or without BAT transplantation was performed in Bmp3b (bone morphogenetic protein 3b)-deficient mice, and WT mice subjected to myocardial I/R were treated using BMP3b. RESULTS Dysfunction of BAT in mice was associated with larger MI size after I/R; conversely, augmenting BAT by transplantation decreased MI size. We identified Bmp3b as a protein secreted by BAT after I/R. Compared with WT mice, Bmp3b-deficient mice developed larger MIs. Increasing functional BAT by transplanting BAT from WT mice to Bmp3b-deficient mice reduced I/R injury whereas transplanting BAT from Bmp3b-deficient mice did not. Treatment of WT mice with BMP3b before reperfusion decreased MI size. The cardioprotective effect of BMP3b was mediated through SMAD1/5/8. In humans, the plasma level of BMP3b increased after MI and was positively correlated with the extent of cardiac injury. CONCLUSIONS The results of this study suggest a cardioprotective role of BAT and BMP3b, a protein secreted by BAT, in a model of I/R injury. Interventions increasing BMP3b levels or targeting Smad 1/5 may represent novel therapeutic approaches to decrease myocardial damage in I/R injury.
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Affiliation(s)
- Íngrid Martí-Pàmies
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Robrecht Thoonen
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, United States
| | - Michael Morley
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Lauren Graves
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Jesus Tamez
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Alex Caplan
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Kendra McDaid
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Vincent Yao
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, United States
| | - Allyson Hindle
- Anesthesia Center for Critical Care Research, Massachusetts General Hospital, Boston, MA, United States
| | - Robert E. Gerszten
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Laurie A. Farrell
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Li Li
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Yu-Hua Tseng
- Section on Integrative Physiology and Metabolism, Research Division, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - Gerson Profeta
- Section on Integrative Physiology and Metabolism, Research Division, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - Emmanuel S Buys
- Anesthesia Center for Critical Care Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, United States
| | - Donald B Bloch
- Anesthesia Center for Critical Care Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, United States
- The Center for Immunology and Inflammatory Diseases and the Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA, United States
| | - Marielle Scherrer-Crosbie
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
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10
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Wang S, Liu Y, Chen J, He Y, Ma W, Liu X, Sun X. Effects of multi-organ crosstalk on the physiology and pathology of adipose tissue. Front Endocrinol (Lausanne) 2023; 14:1198984. [PMID: 37383400 PMCID: PMC10293893 DOI: 10.3389/fendo.2023.1198984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/26/2023] [Indexed: 06/30/2023] Open
Abstract
In previous studies, adipocytes were found to play an important role in regulating whole-body nutrition and energy balance, and are also important in energy metabolism, hormone secretion, and immune regulation. Different adipocytes have different contributions to the body, with white adipocytes primarily storing energy and brown adipocytes producing heat. Recently discovered beige adipocytes, which have characteristics in between white and brown adipocytes, also have the potential to produce heat. Adipocytes interact with other cells in the microenvironment to promote blood vessel growth and immune and neural network interactions. Adipose tissue plays an important role in obesity, metabolic syndrome, and type 2 diabetes. Dysfunction in adipose tissue endocrine and immune regulation can cause and promote the occurrence and development of related diseases. Adipose tissue can also secrete multiple cytokines, which can interact with organs; however, previous studies have not comprehensively summarized the interaction between adipose tissue and other organs. This article reviews the effect of multi-organ crosstalk on the physiology and pathology of adipose tissue, including interactions between the central nervous system, heart, liver, skeletal muscle, and intestines, as well as the mechanisms of adipose tissue in the development of various diseases and its role in disease treatment. It emphasizes the importance of a deeper understanding of these mechanisms for the prevention and treatment of related diseases. Determining these mechanisms has enormous potential for identifying new targets for treating diabetes, metabolic disorders, and cardiovascular diseases.
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Affiliation(s)
- Sufen Wang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Yifan Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Jiaqi Chen
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Yuejing He
- Clinical Laboratory, Dongguan Eighth People’s Hospital, Dongguan, China
| | - Wanrui Ma
- Department of General Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Xinguang Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Xuerong Sun
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Aging Research, School of Medical Technology, Guangdong Medical University, Dongguan, China
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Shi Z, Xiong S, Hu R, Wang Z, Park J, Qian Y, Wang J, Bhalla P, Velupally N, Song Q, Song Z, Layden BT, Jiang Y. The Notch-Pdgfrβ axis suppresses brown adipocyte progenitor differentiation in early postnatal mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.24.541839. [PMID: 37293108 PMCID: PMC10245810 DOI: 10.1101/2023.05.24.541839] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
De novo brown adipogenesis holds potential in combating the epidemics of obesity and diabetes. However, the identity of brown adipocyte progenitor cells (APCs) and their regulation have not been extensively studied. Here through in vivo lineage tracing, we observed that PDGFRβ+ pericytes give rise to developmental brown adipocytes, but not to those in adult homeostasis. In contrast, TBX18+ pericytes contribute to brown adipogenesis throughout both developmental and adult stages, though in a depot-specific manner. Mechanistically, Notch inhibition in PDGFRβ+ pericytes promotes brown adipogenesis through the downregulation of PDGFRβ. Furthermore, inhibition of Notch signaling in PDGFRβ+ pericytes mitigates HFHS (high-fat, high-sucrose) induced glucose and metabolic impairment in both developmental and adult stages. Collectively, these findings show that the Notch/PDGFRβ axis negatively regulates developmental brown adipogenesis, and its repression promotes brown adipose tissue expansion and improves metabolic health. Highlights PDGFRβ+ pericytes act as an essential developmental brown APC.TBX18+ pericytes contribute to brown adipogenesis in a depot-specific manner.Inhibiting Notch-Pdgfrβ axis promotes brown APC adipogenesis.Enhanced postnatal brown adipogenesis improves metabolic health in adult stage.
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12
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Huesca-Gómez C, Torres-Paz YE, Fuentevilla-Álvarez G, González-Moyotl NJ, Ramírez-Marroquín ES, Vásquez-Jiménez X, Sainz-Escarrega V, Soto ME, Samano R, Gamboa R. Expressions of mRNA and encoded proteins of mitochondrial uncoupling protein genes ( UCP1, UCP2, and UCP3) in epicardial and mediastinal adipose tissue and associations with coronary artery disease. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2023; 67:214-223. [PMID: 36651711 PMCID: PMC10689038 DOI: 10.20945/2359-3997000000582] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 08/03/2022] [Indexed: 01/19/2023]
Abstract
Objective To evaluate the expression of UCP1, UCP2, and UCP3 mRNA and encoded proteins in epicardial and mediastinal adipose tissues in patients with coronary artery disease (CAD). Subjects and methods We studied 60 patients with CAD and 106 patients undergoing valve replacement surgery (controls). Expression levels of UCP1, UCP2, and UCP3 mRNA and encoded proteins were measured by quantitative real-time PCR and Western blot analysis, respectively. Results : We found increased UCP1, UCP2, and UCP3 mRNA levels in the epicardial adipose tissue in the CAD versus the control group, and higher UCP1 and UCP3 mRNA expression in the epicardial compared with the mediastinal tissue in the CAD group. There was also increased expression of UCP1 protein in the epicardial tissue and UCP2 protein in the mediastinum tissue in patients with CAD. Finally, UCP1 expression was associated with levels of fasting plasma glucose, and UCP3 expression was associated with levels of high-density lipoprotein cholesterol and low-density cholesterol in the epicardial tissue. Conclusion Our study supports the hypothesis that higher mRNA expression by UCP genes in the epicardial adipose tissue could be a protective mechanism against the production of reactive oxygen species and may guard the myocardium against damage. Thus, UCP levels are essential to maintain the adaptive phase of cardiac injury in the presence of metabolic disorders.
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Affiliation(s)
- Claudia Huesca-Gómez
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Fisiología, Ciudad de México, México
| | - Yazmín Estela Torres-Paz
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Fisiología, Ciudad de México, México
| | | | | | | | - Xicótencatl Vásquez-Jiménez
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Cirugía Cardiotorácica, Ciudad de México, México
| | - Víctor Sainz-Escarrega
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Cirugía Cardiotorácica, Ciudad de México, México
| | - María Elena Soto
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Inmunología, Ciudad de México, México
| | - Reyna Samano
- Instituto Nacional de Perinatología, Coordinación de Nutrición y Bioprogramación, Ciudad de México, México
| | - Ricardo Gamboa
- Instituto Nacional de Cardiología "Ignacio Chávez", Departamento de Fisiología, Ciudad de México, México
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Yin X, Chen Y, Ruze R, Xu R, Song J, Wang C, Xu Q. The evolving view of thermogenic fat and its implications in cancer and metabolic diseases. Signal Transduct Target Ther 2022; 7:324. [PMID: 36114195 PMCID: PMC9481605 DOI: 10.1038/s41392-022-01178-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/30/2022] [Accepted: 09/05/2022] [Indexed: 02/07/2023] Open
Abstract
AbstractThe incidence of metabolism-related diseases like obesity and type 2 diabetes mellitus has reached pandemic levels worldwide and increased gradually. Most of them are listed on the table of high-risk factors for malignancy, and metabolic disorders systematically or locally contribute to cancer progression and poor prognosis of patients. Importantly, adipose tissue is fundamental to the occurrence and development of these metabolic disorders. White adipose tissue stores excessive energy, while thermogenic fat including brown and beige adipose tissue dissipates energy to generate heat. In addition to thermogenesis, beige and brown adipocytes also function as dynamic secretory cells and a metabolic sink of nutrients, like glucose, fatty acids, and amino acids. Accordingly, strategies that activate and expand thermogenic adipose tissue offer therapeutic promise to combat overweight, diabetes, and other metabolic disorders through increasing energy expenditure and enhancing glucose tolerance. With a better understanding of its origins and biological functions and the advances in imaging techniques detecting thermogenesis, the roles of thermogenic adipose tissue in tumors have been revealed gradually. On the one hand, enhanced browning of subcutaneous fatty tissue results in weight loss and cancer-associated cachexia. On the other hand, locally activated thermogenic adipocytes in the tumor microenvironment accelerate cancer progression by offering fuel sources and is likely to develop resistance to chemotherapy. Here, we enumerate current knowledge about the significant advances made in the origin and physiological functions of thermogenic fat. In addition, we discuss the multiple roles of thermogenic adipocytes in different tumors. Ultimately, we summarize imaging technologies for identifying thermogenic adipose tissue and pharmacologic agents via modulating thermogenesis in preclinical experiments and clinical trials.
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Lin JR, Ding LLQ, Xu L, Huang J, Zhang ZB, Chen XH, Cheng YW, Ruan CC, Gao PJ. Brown Adipocyte ADRB3 Mediates Cardioprotection via Suppressing Exosomal iNOS. Circ Res 2022; 131:133-147. [PMID: 35652349 DOI: 10.1161/circresaha.121.320470] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The ADRB3 (β3-adrenergic receptors), which is predominantly expressed in brown adipose tissue (BAT), can activate BAT and improve metabolic health. Previous studies indicate that the endocrine function of BAT is associated with cardiac homeostasis and diseases. Here, we investigate the role of ADRB3 activation-mediated BAT function in cardiac remodeling. METHODS BKO (brown adipocyte-specific ADRB3 knockout) and littermate control mice were subjected to Ang II (angiotensin II) for 28 days. Exosomes from ADRB3 antagonist SR59230A (SR-exo) or agonist mirabegron (MR-exo) treated brown adipocytes were intravenously injected to Ang II-infused mice. RESULTS BKO markedly accelerated cardiac hypertrophy and fibrosis compared with control mice after Ang II infusion. In vitro, ADRB3 KO rather than control brown adipocytes aggravated expression of fibrotic genes in cardiac fibroblasts, and this difference was not detected after exosome inhibitor treatment. Consistently, BKO brown adipocyte-derived exosomes accelerated Ang II-induced cardiac fibroblast dysfunction compared with control exosomes. Furthermore, SR-exo significantly aggravated Ang II-induced cardiac remodeling, whereas MR-exo attenuated cardiac dysfunction. Mechanistically, ADRB3 KO or SR59230A treatment in brown adipocytes resulted an increase of iNOS (inducible nitric oxide synthase) in exosomes. Knockdown of iNOS in brown adipocytes reversed SR-exo-aggravated cardiac remodeling. CONCLUSIONS Our data illustrated a new endocrine pattern of BAT in regulating cardiac remodeling, suggesting that activation of ADRB3 in brown adipocytes offers cardiac protection through suppressing exosomal iNOS.
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Affiliation(s)
- Jing-Rong Lin
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, China (J.-R.L., L.-L.-Q.D., L.X., J.H., Z.-B.Z., X.-H.C., Y.-W.C., P.-J.G.)
| | - Li-Li-Qiang Ding
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, China (J.-R.L., L.-L.-Q.D., L.X., J.H., Z.-B.Z., X.-H.C., Y.-W.C., P.-J.G.)
| | - Lian Xu
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, China (J.-R.L., L.-L.-Q.D., L.X., J.H., Z.-B.Z., X.-H.C., Y.-W.C., P.-J.G.)
| | - Jun Huang
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, China (J.-R.L., L.-L.-Q.D., L.X., J.H., Z.-B.Z., X.-H.C., Y.-W.C., P.-J.G.)
| | - Ze-Bei Zhang
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, China (J.-R.L., L.-L.-Q.D., L.X., J.H., Z.-B.Z., X.-H.C., Y.-W.C., P.-J.G.)
| | - Xiao-Hui Chen
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, China (J.-R.L., L.-L.-Q.D., L.X., J.H., Z.-B.Z., X.-H.C., Y.-W.C., P.-J.G.)
| | - Yu-Wen Cheng
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, China (J.-R.L., L.-L.-Q.D., L.X., J.H., Z.-B.Z., X.-H.C., Y.-W.C., P.-J.G.)
| | - Cheng-Chao Ruan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Shanghai Key Laboratory of Bioactive Small Molecules, Fudan University, China (C.-C.R.)
| | - Ping-Jin Gao
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, China (J.-R.L., L.-L.-Q.D., L.X., J.H., Z.-B.Z., X.-H.C., Y.-W.C., P.-J.G.)
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15
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Abstract
PURPOSE OF REVIEW This review highlights aspects of brown adipose tissue (BAT) communication with other organ systems and how BAT-to-tissue cross-talk could help elucidate future obesity treatments. RECENT FINDINGS Until recently, research on BAT has focused mainly on its thermogenic activity. New research has identified an endocrine/paracrine function of BAT and determined that many BAT-derived molecules, termed "batokines," affect the physiology of a variety of organ systems and cell types. Batokines encompass a variety of signaling molecules including peptides, metabolites, lipids, or microRNAs. Recent studies have noted significant effects of batokines on physiology as it relates whole-body metabolism and cardiac function. This review will discuss batokines and other BAT processes that affect the liver, cardiovascular system, skeletal muscle, immune cells, and brown and white adipose tissue. Brown adipose tissue has a crucial secretory function that plays a key role in systemic physiology.
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Affiliation(s)
- Felix T Yang
- Department of Physiology and Cell Biology, The Ohio State University Wexner Medical Center, 460 W. 12th Ave, Columbus, OH, 43210, USA
- Diabetes and Metabolism Research Center, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Kristin I Stanford
- Department of Physiology and Cell Biology, The Ohio State University Wexner Medical Center, 460 W. 12th Ave, Columbus, OH, 43210, USA.
- Diabetes and Metabolism Research Center, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
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Gavaldà-Navarro A, Villarroya J, Cereijo R, Giralt M, Villarroya F. The endocrine role of brown adipose tissue: An update on actors and actions. Rev Endocr Metab Disord 2022; 23:31-41. [PMID: 33712997 DOI: 10.1007/s11154-021-09640-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/26/2021] [Indexed: 02/06/2023]
Abstract
In recent years, brown adipose tissue (BAT) has been recognized not only as a main site of non-shivering thermogenesis in mammals, but also as an endocrine organ. BAT secretes a myriad of regulatory factors. These so-called batokines exert local autocrine and paracrine effects, as well as endocrine actions targeting tissues and organs at a distance. The endocrine batokines include peptide factors, such as fibroblast growth factor-21 (FGF21), neuregulin-4 (NRG4), phospholipid transfer protein (PLTP), interleukin-6, adiponectin and myostatin, and also lipids (lipokines; e.g., 12,13-dihydroxy-9Z-octadecenoic acid [12,13-diHOME]) and miRNAs (e.g., miR-99b). The liver, heart, and skeletal muscle are the most commonly reported targets of batokines. In response to BAT thermogenic activation, batokines such as NRG4 and PLTP are released and act to reduce hepatic steatosis and improve insulin sensitivity. Stress-induced interleukin-6-mediated signaling from BAT to liver favors hepatic glucose production through enhanced gluconeogenesis. Batokines may act on liver to induce the secretion of regulatory hepatokines (e.g. FGF21 and bile acids in response to miR-99b and PLTP, respectively), thereby resulting in a systemic expansion of BAT-originating signals. Batokines also target extrahepatic tissues: FGF21 and 12,13-diHOME are cardioprotective, whereas BAT-secreted myostatin and 12,13-diHOME influence skeletal muscle development and performance. Further research is needed to ascertain in humans the role of batokines, which have been identified mostly in experimental models. The endocrine role of BAT may explain the association between active BAT and a healthy metabolism in the human system, which is characterized by small amounts of BAT and a likely moderate BAT-mediated energy expenditure.
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Affiliation(s)
- Aleix Gavaldà-Navarro
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain
- Institut de Recerca Sant Joan de Déu, Esplugues, Catalonia, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain
| | - Joan Villarroya
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain
- Institut de Recerca Sant Joan de Déu, Esplugues, Catalonia, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain
| | - Rubén Cereijo
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain
- Institut de Recerca Hospital de La Santa Creu I Sant Pau, Barcelona, Spain
| | - Marta Giralt
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain
- Institut de Recerca Sant Joan de Déu, Esplugues, Catalonia, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain
| | - Francesc Villarroya
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain.
- Institut de Recerca Sant Joan de Déu, Esplugues, Catalonia, Spain.
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain.
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Huang D, Zhang Z, Dong Z, Liu R, Huang J, Xu G. Caloric restriction and Roux-en-Y Gastric Bypass promote white adipose tissue browning in mice. J Endocrinol Invest 2022; 45:139-148. [PMID: 34232475 DOI: 10.1007/s40618-021-01626-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/24/2021] [Indexed: 12/12/2022]
Abstract
PURPOSE Caloric restriction (CR) and Roux-en-Y Gastric Bypass (RYGB) are considered effective means of body weight control, but the mechanism by which CR and RYGB protect against high-fat diet (HFD)-induced obesity remains elusive. The browning of white adipose tissue (WAT) is a potential approach to combat obesity. Here we assess whether browning of WAT is involved in CR- and RYGB-treatment. METHODS The average size of adipocytes was determined by histological analysis. Expression of thermogenic genes in both human subjects and mice were measured by quantitative real-time PCR and immunohistochemical staining. RESULTS The average size of adipocytes was bigger, while the expression of thermogenic genes such as uncoupling protein 1 (UCP1), nuclear factor erythroid-2 like 1 (NRF1) and PPARγ coactivator-1 α (PGC1α) were lower in the WAT of obese subjects when compared to lean controls. Both CR and RYGB promoted weight and fat loss. Increment of the average adipocytes size and down-regulation of thermogenic genes were significantly reversed by both CR and RYGB in the WAT of obese mice. CONCLUSIONS Our findings showed that CR and RYGB significantly improved high-fat diet-induced lipid accumulation by promoting the browning of WAT.
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Affiliation(s)
- D Huang
- Department of Physiology, School of Medicine, Jinan University, 601 Huangpu Avenue West, Tianhe District, Guangzhou, 510632, Guangdong, China
| | - Z Zhang
- Department of Physiology, School of Medicine, Jinan University, 601 Huangpu Avenue West, Tianhe District, Guangzhou, 510632, Guangdong, China
| | - Z Dong
- Department of Obesity and Metabolic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - R Liu
- Department of Physiology, School of Medicine, Jinan University, 601 Huangpu Avenue West, Tianhe District, Guangzhou, 510632, Guangdong, China
| | - J Huang
- Department of Physiology, School of Medicine, Jinan University, 601 Huangpu Avenue West, Tianhe District, Guangzhou, 510632, Guangdong, China
| | - G Xu
- Department of Physiology, School of Medicine, Jinan University, 601 Huangpu Avenue West, Tianhe District, Guangzhou, 510632, Guangdong, China.
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Pinckard KM, Stanford KI. The Heartwarming Effect of Brown Adipose Tissue. Mol Pharmacol 2021; 102:460-471. [PMID: 34933905 PMCID: PMC9341250 DOI: 10.1124/molpharm.121.000328] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 10/27/2021] [Indexed: 11/22/2022] Open
Abstract
Brown adipose tissue (BAT) is a metabolically active tissue that improves glucose metabolism and protects against the development of type 2 diabetes and obesity. However, the role of BAT to improve cardiovascular health has only recently been investigated. In this review, we discuss multiple mechanisms through which both the thermogenic and endocrine functions of BAT mediate cardiac health. β-adrenergic stimulation activates the thermogenic function of BAT, resulting in reduced circulating lipids and glucose, and enhanced clearance of hepatic cholesterol-enriched remnants leading to reduced atherosclerotic region size. Additionally, the thermogenic role of BAT has been implicated in activation of the protein kinase B-extracellular-signal-regulated kinase (ERK) 1/2 pathway after myocardial infarction (MI), contributing to reduced injury size. The endocrine function of BAT has also been implicated to improve both systemic metabolic health and cardiac health. Specifically, the batokines fibroblast growth factor 21 (FGF21) and 12,13-diHOME improve cardiovascular health via reduced hypertension, hypertrophy and MI injury size (FGF21) or by directly improving cardiac function via calcium cycling (12,13-diHOME). Finally, we discuss relevant pharmacological treatment methods currently aiming to activate BAT, typically through sympathetic activation.
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Shamsi F, Wang CH, Tseng YH. The evolving view of thermogenic adipocytes - ontogeny, niche and function. Nat Rev Endocrinol 2021; 17:726-744. [PMID: 34625737 PMCID: PMC8814904 DOI: 10.1038/s41574-021-00562-6] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/27/2021] [Indexed: 12/12/2022]
Abstract
The worldwide incidence of obesity and its sequelae, such as type 2 diabetes mellitus, have reached pandemic levels. Central to the development of these metabolic disorders is adipose tissue. White adipose tissue stores excess energy, whereas brown adipose tissue (BAT) and beige (also known as brite) adipose tissue dissipate energy to generate heat in a process known as thermogenesis. Strategies that activate and expand BAT and beige adipose tissue increase energy expenditure in animal models and offer therapeutic promise to treat obesity. A better understanding of the molecular mechanisms underlying the development of BAT and beige adipose tissue and the activation of thermogenic function is the key to creating practical therapeutic interventions for obesity and metabolic disorders. In this Review, we discuss the regulation of the tissue microenvironment (the adipose niche) and inter-organ communication between BAT and other tissues. We also cover the activation of BAT and beige adipose tissue in response to physiological cues (such as cold exposure, exercise and diet). We highlight advances in harnessing the therapeutic potential of BAT and beige adipose tissue by genetic, pharmacological and cell-based approaches in obesity and metabolic disorders.
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Affiliation(s)
- Farnaz Shamsi
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, USA
| | - Chih-Hao Wang
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Yu-Hua Tseng
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA.
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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Mitochondrial Uncoupling Proteins (UCPs) as Key Modulators of ROS Homeostasis: A Crosstalk between Diabesity and Male Infertility? Antioxidants (Basel) 2021; 10:antiox10111746. [PMID: 34829617 PMCID: PMC8614977 DOI: 10.3390/antiox10111746] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 12/14/2022] Open
Abstract
Uncoupling proteins (UCPs) are transmembrane proteins members of the mitochondrial anion transporter family present in the mitochondrial inner membrane. Currently, six homologs have been identified (UCP1-6) in mammals, with ubiquitous tissue distribution and multiple physiological functions. UCPs are regulators of key events for cellular bioenergetic metabolism, such as membrane potential, metabolic efficiency, and energy dissipation also functioning as pivotal modulators of ROS production and general cellular redox state. UCPs can act as proton channels, leading to proton re-entry the mitochondrial matrix from the intermembrane space and thus collapsing the proton gradient and decreasing the membrane potential. Each homolog exhibits its specific functions, from thermogenesis to regulation of ROS production. The expression and function of UCPs are intimately linked to diabesity, with their dysregulation/dysfunction not only associated to diabesity onset, but also by exacerbating oxidative stress-related damage. Male infertility is one of the most overlooked diabesity-related comorbidities, where high oxidative stress takes a major role. In this review, we discuss in detail the expression and function of the different UCP homologs. In addition, the role of UCPs as key regulators of ROS production and redox homeostasis, as well as their influence on the pathophysiology of diabesity and potential role on diabesity-induced male infertility is debated.
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Uncoupling protein 1 knockout aggravates isoproterenol-induced acute myocardial ischemia via AMPK/mTOR/PPARα pathways in rats. Transgenic Res 2021; 31:107-118. [PMID: 34709566 PMCID: PMC8821478 DOI: 10.1007/s11248-021-00289-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 10/01/2021] [Indexed: 11/17/2022]
Abstract
Uncoupling protein 1 (UCP1) was found exclusively in the inner membranes of the mitochondria of brown adipose tissue (BAT). We found that UCP1 was also expressed in heart tissue and significantly upregulated in isoproterenol (ISO)-induced acute myocardial ischemia (AMI) rat model. The present study is to determine the underlying mechanism involved in the UCP1 upregulation in ISO-induced AMI rat model. The Ucp1−/− rats were generated by CRISPR-Cas9 system and presented decreased BAT volume. 2-months old Sprague Dawley (SD) wild-type (WT) and Ucp1−/− rats were treated with ISO intraperitoneally 30 mg/kg once a day for 3 consecutive days to establish AMI model. In saline group, the echocardiographic parameters, serum markers of myocardial injury cardiac troponin I (cTnI), creatine kinase isoenzyme MB (CK-MB), oxidant malondialdehyde (MDA), antioxidant superoxide dismutase (SOD) or fibrosis were comparable between WT and Ucp1−/− rats. ISO treatment induced worse left ventricle (LV) hypertrophy, myocardial fibrosis, increased higher cTnI, CK-MB and MDA and decreased lower SOD level in Ucp1−/− rats compared with that of WT rats. Ucp1−/− rats also presented lower myocardial phosphocreatine (PCr)/ATP-ratio, which demonstrated worse cardiac energy regulation defect. ISO treatment induced the phosphorylation of AMP-activated protein kinase (AMPK) activation, subsequently the phosphorylation of mammalian target of rapamycin (mTOR) inhibition and peroxisome proliferators-activated receptor α (PPARα) activation in WT rats, whereas activation of AMPK/mTOR/PPARα pathways significantly inhibited in Ucp1−/− rats. To sum up, UCP1 knockout aggravated ISO-induced AMI by inhibiting AMPK/mTOR/PPARα pathways in rats. Increasing UCP1 expression in heart tissue may be a cytoprotective therapeutic strategy for AMI.
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22
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Giroud M, Jodeleit H, Prentice KJ, Bartelt A. Adipocyte function and the development of cardiometabolic disease. J Physiol 2021; 600:1189-1208. [PMID: 34555180 DOI: 10.1113/jp281979] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/31/2021] [Indexed: 11/08/2022] Open
Abstract
Obesity is a medical disorder caused by multiple mechanisms of dysregulated energy balance. A major consequence of obesity is an increased risk to develop diabetes, diabetic complications and cardiovascular disease. While a better understanding of the molecular mechanisms linking obesity, insulin resistance and cardiovascular disease is needed, translational research of the human pathology is hampered by the available cellular and rodent model systems. Major barriers are the species-specific differences in energy balance, vascular biology and adipose tissue physiology, especially related to white and brown adipocytes, and adipose tissue browning. In rodents, non-shivering thermogenesis is responsible for a large part of energy expenditure, but humans possess much less thermogenic fat, which means temperature is an important variable in translational research. Mouse models with predisposition to dyslipidaemia housed at thermoneutrality and fed a high-fat diet more closely reflect human physiology. Also, adipocytes play a key role in the endocrine regulation of cardiovascular function. Adipocytes secrete a variety of hormones, lipid mediators and other metabolites that directly influence the local microenvironment as well as distant tissues. This is specifically apparent in perivascular depots, where adipocytes modulate vascular function and inflammation. Altogether, these mechanisms highlight the critical role of adipocytes in the development of cardiometabolic disease.
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Affiliation(s)
- Maude Giroud
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University, Munich, Germany.,Institute for Diabetes and Cancer (IDC), Helmholtz Center Munich, Neuherberg, Germany
| | - Henrika Jodeleit
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Bavaria, Germany
| | - Kacey J Prentice
- Department of Molecular Metabolism & Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Alexander Bartelt
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University, Munich, Germany.,Institute for Diabetes and Cancer (IDC), Helmholtz Center Munich, Neuherberg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Bavaria, Germany.,Department of Molecular Metabolism & Sabri Ülker Center for Metabolic Research, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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23
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Baglien B, Strong AL. Discussion: Induced Beige Adipocytes Improved Fat Graft Retention by Promoting Adipogenesis and Angiogenesis. Plast Reconstr Surg 2021; 148:559-560. [PMID: 34432685 DOI: 10.1097/prs.0000000000008228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Brigit Baglien
- From the Section of Plastic and Reconstructive Surgery, Department of Surgery, University of Michigan
| | - Amy L Strong
- From the Section of Plastic and Reconstructive Surgery, Department of Surgery, University of Michigan
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24
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Li G, Shao Y, Guo HC, Zhi Y, Qiao B, Ma K, Lai YQ, Du J, Li Y. MicroRNA-27b-3p downregulates FGF1 and aggravates pathological cardiac remodelling. Cardiovasc Res 2021; 118:2139-2151. [PMID: 34358309 PMCID: PMC9302889 DOI: 10.1093/cvr/cvab248] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Indexed: 12/13/2022] Open
Abstract
AIMS The heart undergoes pathological remodelling under increased stress and neuronal imbalance. MicroRNAs (miRNAs) are involved in post-transcriptional regulation of genes in cardiac physiology and pathology. However, the mechanisms underlying miRNA-mediated regulation of pathological cardiac remodelling remain to be studied. This study aimed to explore the function of endogenous microRNA-27b-3p (miR-27b-3p) in pathological cardiac remodelling. METHODS AND RESULTS miR-27b-3p expression was elevated in the heart of a transverse aortic constriction (TAC)-induced cardiac hypertrophy mouse model. MiR-27b-knockout mice showed significantly attenuated cardiac hypertrophy, fibrosis, and inflammation induced by two independent pathological cardiac hypertrophy models, TAC and Angiotensin II (Ang II) perfusion. Transcriptome sequencing analysis revealed that miR-27b deletion significantly downregulated TAC-induced cardiac hypertrophy, fibrosis, and inflammatory genes. We identified fibroblast growth factor 1 (FGF1) as a miR-27b-3p target gene in the heart and was upregulated in miR-27b-null mice. We found that both recombinant FGF1 (rFGF1) and inhibition of miR-27b-3p enhanced mitochondrial oxidative phosphorylation (OXPHOS) and inhibited cardiomyocyte hypertrophy. Importantly, rFGF1 administration inhibited cardiac hypertrophy and fibrosis in TAC or Ang II-induced models, and enhanced OXPHOS by activating PGC1α/β. CONCLUSIONS Our study demonstrated that miR-27b-3p induces pathological cardiac remodelling and suggests that inhibition of endogenous miR-27b-3p or administration of FGF1 might have the potential to suppress cardiac remodelling in a clinical setting. TRANSLATIONAL PERSPECTIVE MicroRNAs (miRNAs) are involved in post-transcriptional regulation of genes in cardiac physiology and pathology. However, the mechanisms underlying miRNA-mediated regulation of pathological cardiac remodelling remain to be studied. We show for the first time that miR-27b deletion attenuates cardiac hypertrophy, fibrosis, and inflammation and that rFGF1 administration inhibits cardiac hypertrophy and fibrosis in TAC- or Ang II-induced models, and enhances OXPHOS by activating PGC1α/β. Our findings suggest that miR-27b-3p and FGF1 may be potential therapeutic targets to treat conditions characterised by pathological cardiac remodelling.
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Affiliation(s)
- Guoqi Li
- Beijing Anzhen Hospital, Capital Medical University; The Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, 100029, China
| | - Yihui Shao
- Beijing Anzhen Hospital, Capital Medical University; The Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, 100029, China
| | - Hong-Chang Guo
- Beijing Anzhen Hospital, Capital Medical University; The Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, 100029, China
| | - Ying Zhi
- Beijing Anzhen Hospital, Capital Medical University; The Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, 100029, China
| | - Bokang Qiao
- Beijing Anzhen Hospital, Capital Medical University; The Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, 100029, China
| | - Ke Ma
- Beijing Anzhen Hospital, Capital Medical University; The Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, 100029, China
| | - Yong-Qiang Lai
- Beijing Anzhen Hospital, Capital Medical University; The Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, 100029, China
| | - Jie Du
- Beijing Anzhen Hospital, Capital Medical University; The Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, 100029, China
| | - Yulin Li
- Beijing Anzhen Hospital, Capital Medical University; The Key Laboratory of Remodelling-Related Cardiovascular Diseases, Ministry of Education; Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing, 100029, China
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25
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Guarnieri AR, Anthony SR, Gozdiff A, Green LC, Fleifil SM, Slone S, Nieman ML, Alam P, Benoit JB, Owens AP, Kanisicak O, Tranter M. Adipocyte-specific deletion of HuR induces spontaneous cardiac hypertrophy and fibrosis. Am J Physiol Heart Circ Physiol 2021; 321:H228-H241. [PMID: 34018851 DOI: 10.1152/ajpheart.00957.2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Adipose tissue homeostasis plays a central role in cardiovascular physiology, and the presence of thermogenically active brown adipose tissue (BAT) has recently been associated with cardiometabolic health. We have previously shown that adipose tissue-specific deletion of HuR (Adipo-HuR-/-) reduces BAT-mediated adaptive thermogenesis, and the goal of this work was to identify the cardiovascular impacts of Adipo-HuR-/-. We found that Adipo-HuR-/- mice exhibit a hypercontractile phenotype that is accompanied by increased left ventricle wall thickness and hypertrophic gene expression. Furthermore, hearts from Adipo-HuR-/- mice display increased fibrosis via picrosirius red staining and periostin expression. To identify underlying mechanisms, we applied both RNA-seq and weighted gene coexpression network analysis (WGCNA) across both cardiac and adipose tissue to define HuR-dependent changes in gene expression as well as significant relationships between adipose tissue gene expression and cardiac fibrosis. RNA-seq results demonstrated a significant increase in proinflammatory gene expression in both cardiac and subcutaneous white adipose tissue (scWAT) from Adipo-HuR-/- mice that is accompanied by an increase in serum levels of both TNF-α and IL-6. In addition to inflammation-related genes, WGCNA identified a significant enrichment in extracellular vesicle-mediated transport and exosome-associated genes in scWAT, whose expression most significantly associated with the degree of cardiac fibrosis observed in Adipo-HuR-/- mice, implicating these processes as a likely adipose-to-cardiac paracrine mechanism. These results are significant in that they demonstrate the spontaneous onset of cardiovascular pathology in an adipose tissue-specific gene deletion model and contribute to our understanding of how disruptions in adipose tissue homeostasis may mediate cardiovascular disease.NEW & NOTEWORTHY The presence of functional brown adipose tissue in humans is known to be associated with cardiovascular health. Here, we show that adipocyte-specific deletion of the RNA binding protein HuR, which we have previously shown to reduce BAT-mediated thermogenesis, is sufficient to mediate a spontaneous development of cardiac hypertrophy and fibrosis. These results may have implications on the mechanisms by which BAT function and adipose tissue homeostasis directly mediate cardiovascular disease.
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Affiliation(s)
- Adrienne R Guarnieri
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Sarah R Anthony
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Anamarie Gozdiff
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Lisa C Green
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Salma M Fleifil
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Sam Slone
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Michelle L Nieman
- Department of Pharmacology & Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Perwez Alam
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Joshua B Benoit
- Department of Biological Sciences, University of Cincinnati, Cincinnati, Ohio
| | - A Phillip Owens
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Onur Kanisicak
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Michael Tranter
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
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26
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Drinking Molecular Hydrogen Water Is Beneficial to Cardiovascular Function in Diet-Induced Obesity Mice. BIOLOGY 2021; 10:biology10050364. [PMID: 33922704 PMCID: PMC8146054 DOI: 10.3390/biology10050364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/10/2021] [Accepted: 04/20/2021] [Indexed: 11/17/2022]
Abstract
Molecular hydrogen (MH) reportedly exerts therapeutic effects against inflammatory diseases as a suppressor of free radical chain reactions. Here, the cardiovascular protective effects of the intake of molecular hydrogen water (MHW) were investigated using high-fat diet-induced obesity (DIO) mice. MHW was prepared using supplier sticks and degassed water as control. MHW intake for 2 weeks did not improve blood sugar or body weight but decreased heart weight in DIO mice. Moreover, MHW intake improved cardiac hypertrophy, shortened the width of cardiomyocytes, dilated the capillaries and arterioles, activated myocardial eNOS-Ser-1177 phosphorylation, and restored left ventricular function in DIO mice. MHW intake promoted the histological conversion of hypertrophy to hyperplasia in white and brown adipose tissues (WAT and BAT) with the upregulation of thermogenic and cardiovascular protective genes in BAT (i.e., Ucp-1, Vegf-a, and eNos). Furthermore, the results of a colony formation assay of bone-marrow-derived endothelial progenitor cells (EPCs) indicated that MHW activated the expansion, differentiation, and mobilization of EPCs to maintain vascular homeostasis. These findings indicate that the intake of MHW exerts cardiovascular protective effects in DIO mice. Hence, drinking MHW is a potential prophylactic strategy against cardiovascular disorders in metabolic syndrome.
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27
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Chen HJ, Meng T, Gao PJ, Ruan CC. The Role of Brown Adipose Tissue Dysfunction in the Development of Cardiovascular Disease. Front Endocrinol (Lausanne) 2021; 12:652246. [PMID: 34113316 PMCID: PMC8185286 DOI: 10.3389/fendo.2021.652246] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/03/2021] [Indexed: 12/18/2022] Open
Abstract
Brown adipose tissue (BAT), consisted of brown adipocytes and stromal vascular fraction, which includes endothelial cells, lymphocytes, fibroblasts and stem cells, plays a vital role in regulating cardiovascular health and diseases. As a thermogenic organ, BAT can influence body through strengthening energy expenditure by promoting glucose and lipid metabolism. In addition, BAT is also an endocrine organ which is able to secret adipokines in an autocrine and/or paracrine fashion. BAT plays a protective role in cardiovascular system through attenuating cardiac remodeling and suppressing inflammatory response. In this review, we summarize the advances from the discovery of BAT to the present and provide an overview on the role of BAT dysfunction in cardiovascular diseases.
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Affiliation(s)
- Hong-Jin Chen
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai, China
- Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ting Meng
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Ping-Jin Gao
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai, China
- Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Cheng-Chao Ruan
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai, China
- Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
- *Correspondence: Cheng-Chao Ruan,
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28
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Pinckard KM, Shettigar VK, Wright KR, Abay E, Baer LA, Vidal P, Dewal RS, Das D, Duarte-Sanmiguel S, Hernández-Saavedra D, Arts PJ, Lehnig AC, Bussberg V, Narain NR, Kiebish MA, Yi F, Sparks LM, Goodpaster BH, Smith SR, Pratley RE, Lewandowski ED, Raman SV, Wold LE, Gallego-Perez D, Coen PM, Ziolo MT, Stanford KI. A Novel Endocrine Role for the BAT-Released Lipokine 12,13-diHOME to Mediate Cardiac Function. Circulation 2020; 143:145-159. [PMID: 33106031 DOI: 10.1161/circulationaha.120.049813] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Brown adipose tissue (BAT) is an important tissue for thermogenesis, making it a potential target to decrease the risks of obesity, type 2 diabetes, and cardiovascular disease, and recent studies have also identified BAT as an endocrine organ. Although BAT has been implicated to be protective in cardiovascular disease, to this point there are no studies that identify a direct role for BAT to mediate cardiac function. METHODS To determine the role of BAT on cardiac function, we utilized a model of BAT transplantation. We then performed lipidomics and identified an increase in the lipokine 12,13-dihydroxy-9Z-octadecenoic acid (12,13-diHOME). We utilized a mouse model with sustained overexpression of 12,13-diHOME and investigated the role of 12,13-diHOME in a nitric oxide synthase type 1 deficient (NOS1-/-) mouse and in isolated cardiomyocytes to determine effects on function and respiration. We also investigated 12,13-diHOME in a cohort of human patients with heart disease. RESULTS Here, we determined that transplantation of BAT (+BAT) improves cardiac function via the release of the lipokine 12,13-diHOME. Sustained overexpression of 12,13-diHOME using tissue nanotransfection negated the deleterious effects of a high-fat diet on cardiac function and remodeling, and acute injection of 12,13-diHOME increased cardiac hemodynamics via direct effects on the cardiomyocyte. Furthermore, incubation of cardiomyocytes with 12,13-diHOME increased mitochondrial respiration. The effects of 12,13-diHOME were absent in NOS1-/- mice and cardiomyocytes. We also provide the first evidence that 12,13-diHOME is decreased in human patients with heart disease. CONCLUSIONS Our results identify an endocrine role for BAT to enhance cardiac function that is mediated by regulation of calcium cycling via 12,13-diHOME and NOS1.
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Affiliation(s)
- Kelsey M Pinckard
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Vikram K Shettigar
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Katherine R Wright
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Eaman Abay
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Lisa A Baer
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Pablo Vidal
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Revati S Dewal
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Devleena Das
- Department of Biomedical Engineering (D.D., S.D.-S., D.G.P.), The Ohio State University, Columbus
| | - Silvia Duarte-Sanmiguel
- Department of Biomedical Engineering (D.D., S.D.-S., D.G.P.), The Ohio State University, Columbus.,Department of Nutrition (S.D.-S.), The Ohio State University, Columbus
| | - Diego Hernández-Saavedra
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Peter J Arts
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Adam C Lehnig
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | | | | | | | - Fanchao Yi
- Translational Research Institute for Metabolism and Diabetes, AdventHealth, Orlando, FL (F.Y., L.M.S., B.H.G., S.R.S., R.E.P., E.D.L., P.M.C.)
| | - Lauren M Sparks
- Translational Research Institute for Metabolism and Diabetes, AdventHealth, Orlando, FL (F.Y., L.M.S., B.H.G., S.R.S., R.E.P., E.D.L., P.M.C.)
| | - Bret H Goodpaster
- Translational Research Institute for Metabolism and Diabetes, AdventHealth, Orlando, FL (F.Y., L.M.S., B.H.G., S.R.S., R.E.P., E.D.L., P.M.C.)
| | - Steven R Smith
- Translational Research Institute for Metabolism and Diabetes, AdventHealth, Orlando, FL (F.Y., L.M.S., B.H.G., S.R.S., R.E.P., E.D.L., P.M.C.)
| | - Richard E Pratley
- Translational Research Institute for Metabolism and Diabetes, AdventHealth, Orlando, FL (F.Y., L.M.S., B.H.G., S.R.S., R.E.P., E.D.L., P.M.C.)
| | - E Douglas Lewandowski
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Internal Medicine (E.D.L., S.V.R., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus.,Translational Research Institute for Metabolism and Diabetes, AdventHealth, Orlando, FL (F.Y., L.M.S., B.H.G., S.R.S., R.E.P., E.D.L., P.M.C.).,Sanford Burnham Prebys Medical Discovery Institute at Lake Nona, Orlando, FL (E.D.L.)
| | - Subha V Raman
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Internal Medicine (E.D.L., S.V.R., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Loren E Wold
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus.,College of Nursing (L.E.W.), The Ohio State University, Columbus
| | - Daniel Gallego-Perez
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Surgery (D.G.P.), The Ohio State University College of Medicine, Columbus.,Department of Biomedical Engineering (D.D., S.D.-S., D.G.P.), The Ohio State University, Columbus
| | - Paul M Coen
- Translational Research Institute for Metabolism and Diabetes, AdventHealth, Orlando, FL (F.Y., L.M.S., B.H.G., S.R.S., R.E.P., E.D.L., P.M.C.)
| | - Mark T Ziolo
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus.,Department of Internal Medicine (E.D.L., S.V.R., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
| | - Kristin I Stanford
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., E.D.L., S.V.R., L.E.W., D.G.P., M.T.Z., K.I.S.).,Department of Physiology and Cell Biology (K.M.P., V.K.S., K.R.W., E.A., L.A.B., P.V., R.S.D., D.H.-S., P.J.A., A.C.L., L.E.W., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus.,Department of Internal Medicine (E.D.L., S.V.R., M.T.Z., K.I.S.), The Ohio State University College of Medicine, Columbus
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29
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Martí-Pàmies Í, Thoonen R, Seale P, Vite A, Caplan A, Tamez J, Graves L, Han W, Buys ES, Bloch DB, Scherrer-Crosbie M. Deficiency of bone morphogenetic protein-3b induces metabolic syndrome and increases adipogenesis. Am J Physiol Endocrinol Metab 2020; 319:E363-E375. [PMID: 32603262 PMCID: PMC7473912 DOI: 10.1152/ajpendo.00362.2019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bone morphogenetic protein (BMP) receptor signaling is critical for the regulation of the endocrine system and cardiovascular structure and function. The objective of this study was to investigate whether Bmp3b, a glycoprotein synthetized and secreted by adipose tissue, is necessary to regulate glucose and lipid metabolism, adipogenesis, and cardiovascular remodeling. Over the course of 4 mo, Bmp3b-knockout (Bmp3b-/-) mice gained more weight than wild-type (WT) mice. The plasma levels of cholesterol and triglycerides were higher in Bmp3b-/- mice than in WT mice. Bmp3b-/- mice developed insulin resistance and glucose intolerance. The basal heart rate was higher in Bmp3b-/- mice than in WT mice, and echocardiography revealed eccentric remodeling in Bmp3b-/- mice. The expression of adipogenesis-related genes in white adipose tissue was higher in Bmp3b-/- mice than in WT control mice. In vitro studies showed that Bmp3b modulates the activity of the C/ebpα promoter, an effect mediated by Smad2/3. The results of this study suggest that Bmp3b is necessary for the maintenance of homeostasis in terms of age-related weight gain, glucose metabolism, and left ventricular (LV) remodeling and function. Interventions that increase the level or function of BMP3b may decrease cardiovascular risk and pathological cardiac remodeling.
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Affiliation(s)
- Íngrid Martí-Pàmies
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Robrecht Thoonen
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Patrick Seale
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Alexia Vite
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Alex Caplan
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jesus Tamez
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Lauren Graves
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Wei Han
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Emmanuel S Buys
- Anesthesia Center for Critical Care Research, Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, Massachusetts
| | - Donald B Bloch
- Anesthesia Center for Critical Care Research, Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, Massachusetts
- The Center for Immunology and Inflammatory Diseases and Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, Massachusetts
| | - Marielle Scherrer-Crosbie
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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30
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A novel tracer for in vivo optical imaging of fatty acid metabolism in the heart and brown adipose tissue. Sci Rep 2020; 10:11209. [PMID: 32641756 PMCID: PMC7343860 DOI: 10.1038/s41598-020-68065-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 06/16/2020] [Indexed: 12/04/2022] Open
Abstract
Multiplexed imaging is essential for the evaluation of substrate utilization in metabolically active organs, such as the heart and brown adipose tissue (BAT), where substrate preference changes in pathophysiologic states. Optical imaging provides a useful platform because of its low cost, high throughput and intrinsic ability to perform composite readouts. However, the paucity of probes available for in vivo use has limited optical methods to image substrate metabolism. Here, we present a novel near-infrared (NIR) free fatty acid (FFA) tracer suitable for in vivo imaging of deep tissues such as the heart. Using click chemistry, Alexa Fluor 647 DIBO Alkyne was conjugated to palmitic acid. Mice injected with 0.05 nmol/g bodyweight of the conjugate (AlexaFFA) were subjected to conditions known to increase FFA uptake in the heart (fasting) and BAT [cold exposure and injection with the β3 adrenergic agonist CL 316, 243(CL)]. Organs were subsequently imaged both ex vivo and in vivo to quantify AlexaFFA uptake. The blood kinetics of AlexaFFA followed a two-compartment model with an initial fast compartment half-life of 0.14 h and a subsequent slow compartment half-life of 5.2 h, consistent with reversible protein binding. Ex vivo fluorescence imaging after overnight cold exposure and fasting produced a significant increase in AlexaFFA uptake in the heart (58 ± 12%) and BAT (278 ± 19%) compared to warm/fed animals. In vivo imaging of the heart and BAT after exposure to CL and fasting showed a significant increase in AlexaFFA uptake in the heart (48 ± 20%) and BAT (40 ± 10%) compared to saline-injected/fed mice. We present a novel near-infrared FFA tracer, AlexaFFA, that is suitable for in vivo quantification of FFA metabolism and can be applied in the context of a low cost, high throughput, and multiplexed optical imaging platform.
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31
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Nishimura K, Asakura M, Hirotani S, Okuhara Y, Shirai M, Orihara Y, Matsumoto Y, Naito Y, Minamino N, Masuyama T, Ishihara M. Manipulation of beta-adrenergic receptor in pressure-overloaded murine hearts mimics adverse and reverse cardiac remodeling. Biochem Biophys Res Commun 2020; 527:960-967. [PMID: 32439165 DOI: 10.1016/j.bbrc.2020.04.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 04/30/2020] [Indexed: 10/24/2022]
Abstract
Transverse aortic constriction (TAC) has been widely used to create pressure overload induced heart failure in mice. However, this conventional model has some limitations such as low reproducibility and long creation period of cardiac failure. In order to establish a highly reproducible cardiac failure model that mimics adverse cardiac remodeling (ACR) we combined pressure overload and beta-adrenergic receptor stimuli using isoproterenol (ISO) and explored the optimal TAC model by changing the durations of TAC and the doses of ISO. Thus we constructed a suitable model for ACR with an effective combination of 3-week TAC and subsequent one-week ISO (3 mg/kg/day) infusion. Using RNA-Seq analyses, we identified that the up-regulated genes were mainly related to fibrosis including Fbn1, C1qtnf6 and Loxl2; and that the down-regulated genes were associated with mitochondrial function including Uqcrc1, Ndufs3, and Idh2 in failing hearts of our ACR model. Next, we followed the changes in cardiac function after ceasing ISO infusion. Left ventricular function gradually recovered after cessation of ISO, suggesting cardiac reverse remodeling (CRR). Gene expression signatures of hearts, which exhibited CRR, were almost identical to that of TAC hearts without ISO. In conclusion, our new model exhibits a transition to ACR and subsequent CRR with high reproducibility. This murine model might add new insights into the experiments of heart failure technically as well as scientifically.
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Affiliation(s)
- Koichi Nishimura
- Department of Cardiovascular and Renal Medicine, Hyogo Collage of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Masanori Asakura
- Department of Cardiovascular and Renal Medicine, Hyogo Collage of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
| | - Shinichi Hirotani
- Cardiovascular Division, Kawachi General Hospital, 1-31 Yokomakura, Higashiosaka, Osaka, 578-0954, Japan
| | - Yoshitaka Okuhara
- Department of Cardiovascular and Renal Medicine, Hyogo Collage of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Manabu Shirai
- Omics Research Center, National Cerebral and Cardiovascular Center, 6-1, Kishibe-Shinmachi, Suita, Osaka, 564-8565, Japan
| | - Yoshiyuki Orihara
- Department of Cardiovascular and Renal Medicine, Hyogo Collage of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Yuki Matsumoto
- Department of Cardiovascular and Renal Medicine, Hyogo Collage of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Yoshiro Naito
- Department of Cardiovascular and Renal Medicine, Hyogo Collage of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Naoto Minamino
- Omics Research Center, National Cerebral and Cardiovascular Center, 6-1, Kishibe-Shinmachi, Suita, Osaka, 564-8565, Japan
| | - Tohru Masuyama
- Department of Cardiovascular and Renal Medicine, Hyogo Collage of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Masaharu Ishihara
- Department of Cardiovascular and Renal Medicine, Hyogo Collage of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
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32
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Mechanisms linking adipose tissue inflammation to cardiac hypertrophy and fibrosis. Clin Sci (Lond) 2020; 133:2329-2344. [PMID: 31777927 DOI: 10.1042/cs20190578] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/08/2019] [Accepted: 11/13/2019] [Indexed: 12/13/2022]
Abstract
Adipose tissue is classically recognized as the primary site of lipid storage, but in recent years has garnered appreciation for its broad role as an endocrine organ comprising multiple cell types whose collective secretome, termed as adipokines, is highly interdependent on metabolic homeostasis and inflammatory state. Anatomical location (e.g. visceral, subcutaneous, epicardial etc) and cellular composition of adipose tissue (e.g. white, beige, and brown adipocytes, macrophages etc.) also plays a critical role in determining its response to metabolic state, the resulting secretome, and its potential impact on remote tissues. Compared with other tissues, the heart has an extremely high and constant demand for energy generation, of which most is derived from oxidation of fatty acids. Availability of this fatty acid fuel source is dependent on adipose tissue, but evidence is mounting that adipose tissue plays a much broader role in cardiovascular physiology. In this review, we discuss the impact of the brown, subcutaneous, and visceral white, perivascular (PVAT), and epicardial adipose tissue (EAT) secretome on the development and progression of cardiovascular disease (CVD), with a particular focus on cardiac hypertrophy and fibrosis.
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33
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Zhou YP, Ruan CC, Kong LR, Gao PJ. Adenosine A 2A receptor activation prevents DOCA-salt induced hypertensive cardiac remodeling via iBAT. Biochem Biophys Res Commun 2020; 525:S0006-291X(20)30301-6. [PMID: 32087969 DOI: 10.1016/j.bbrc.2020.02.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 02/06/2020] [Indexed: 11/26/2022]
Abstract
Hypertensive cardiac remodeling is a constellation of abnormalities that includes cardiomyocyte hypertrophy and death and tissue fibrosis. Adenosine is a long-known vasodilator, through interacting with its four cell surface receptor subtypes in cardiovascular system. However, it is unclear that whether adenosine A2A receptor (A2AR) activation is involved in the cardiac remodeling in hypertension. WT mice were utilized to induce DOCA-salt sensitive hypertension and received A2AR agonist CGS21680 or antagonist KW6002 treatment. Cardiac functional phenotyping measurement by echocardiography showed that CGS21680 improved cardiac dysfunction in DOCA-salt mice. Moreover, CGS21680 reduced cardiomyocyte hypertrophy, cardiac inflammation and fibrosis. However, iBAT depletion surgery induces dramatic cardiac remodeling in DOCA-salt mice, and the protective function of CGS21680 was blocked without intact iBAT. Mechanistically, A2AR agonist CGS21680 increased iBAT-derived fibroblast growth factor 21 (FGF21). Our data suggest that activation of A2AR could be a potential therapeutic strategy in preventing heart damage in hypertension.
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Affiliation(s)
- Yan-Ping Zhou
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Cheng-Chao Ruan
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ling-Ran Kong
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Ping-Jin Gao
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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34
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Maurer SF, Fromme T, Mocek S, Zimmermann A, Klingenspor M. Uncoupling protein 1 and the capacity for nonshivering thermogenesis are components of the glucose homeostatic system. Am J Physiol Endocrinol Metab 2020; 318:E198-E215. [PMID: 31714796 DOI: 10.1152/ajpendo.00121.2019] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Uncoupling protein 1 (Ucp1) provides nonshivering thermogenesis (NST) fueled by the dissipation of energy from macronutrients in brown and brite adipocytes. The availability of thermogenic fuels is facilitated by the uptake of extracellular glucose. This conjunction renders thermogenic adipocytes in brown and white adipose tissue (WAT) a potential target against obesity and glucose intolerance. We employed wild-type (WT) and Ucp1-ablated mice to elucidate this relationship. In three experiments of similar setup, Ucp1-ablated mice fed a high-fat diet (HFD) had either reduced or similar body mass gain, food intake, and metabolic efficiency compared with WT mice, challenging the hypothesized role of this protein in the development of diet-induced obesity. Despite the absence of increased body mass, oral glucose tolerance was robustly impaired in Ucp1-ablated mice in response to HFD. Postprandial glucose uptake was attenuated in brown adipose tissue but enhanced in subcutaneous WAT of Ucp1-ablated mice. These differences were explainable by expression of the insulin-responsive member 4 of the facilitated glucose transporter family and fully in line with the capacity for NST in these very tissues. Thus, the postprandial glucose uptake of adipose tissues serves as a surrogate measure for Ucp1-dependent and independent capacity for NST. Collectively, our findings corroborate Ucp1 as a modulator of adipose tissue glucose uptake and systemic glucose homeostasis but challenge its hypothesized causal effect on the development of obesity.
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Affiliation(s)
- Stefanie F Maurer
- Chair for Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences, Freising, Germany
- Else Kröner-Fresenius Center for Nutritional Medicine, Technical University of Munich, Freising, Germany
| | - Tobias Fromme
- Chair for Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences, Freising, Germany
- Else Kröner-Fresenius Center for Nutritional Medicine, Technical University of Munich, Freising, Germany
- ZIEL Institute for Food and Health, Technical University of Munich, Freising, Germany
| | - Sabine Mocek
- Chair for Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences, Freising, Germany
| | - Anika Zimmermann
- Chair for Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences, Freising, Germany
| | - Martin Klingenspor
- Chair for Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences, Freising, Germany
- Else Kröner-Fresenius Center for Nutritional Medicine, Technical University of Munich, Freising, Germany
- ZIEL Institute for Food and Health, Technical University of Munich, Freising, Germany
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35
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Tutunchi H, Ostadrahimi A, Hosseinzadeh-Attar MJ, Miryan M, Mobasseri M, Ebrahimi-Mameghani M. A systematic review of the association of neuregulin 4, a brown fat-enriched secreted factor, with obesity and related metabolic disturbances. Obes Rev 2020; 21:e12952. [PMID: 31782243 DOI: 10.1111/obr.12952] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/05/2019] [Accepted: 09/05/2019] [Indexed: 12/13/2022]
Abstract
Neuregulin 4 (Nrg4), a novel brown fat-enriched hormone, plays a key role in the modulation of glucose and lipid metabolism and energy balance. Recent data have demonstrated that the expression of Nrg4 is substantially down-regulated in mouse and human obesity, making its regulatory aspect intriguing. Because of the close relationship between Nrg4, obesity, and associated metabolic diseases, this systematic review aimed to assess the association of Nrg4 with obesity and related metabolic disturbances, emphasizing its possible mechanisms of action in these disorders. We searched PubMed/Medline, ScienceDirect, Scopus, EMBASE, ProQuest, and Google Scholar up until June 2019. The evidence reviewed here indicates that Nrg4 may contribute to the prevention of obesity and related metabolic complications by elevating brown adipose tissue activity, increasing the expression of thermogenic markers, decreasing the expression of lipogenic/adipogenic genes, exacerbating white adipose tissue browning, increasing the number of brite/beige adipocytes, promoting hepatic fat oxidation and ketogenesis, inducing neurite outgrowth, enhancing blood vessels in adipose tissue, increasing the circulatory levels of healthy adipokines, and improving glucose homeostasis. Thus, Nrg4 appears to be a novel therapeutic strategy for the treatment of obesity and associated metabolic complications. However, prospective cohort studies are warranted to confirm these outcomes.
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Affiliation(s)
- Helda Tutunchi
- Nutrition Research Center, Student Research Committee, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Ostadrahimi
- Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Mahsa Miryan
- Nutrition Research Center, Student Research Committee, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Majid Mobasseri
- Endocrine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehrangiz Ebrahimi-Mameghani
- Social Determinants of Health Research Center, Department of Biochemistry and Diet Therapy, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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36
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Saxton SN, Clark BJ, Withers SB, Eringa EC, Heagerty AM. Mechanistic Links Between Obesity, Diabetes, and Blood Pressure: Role of Perivascular Adipose Tissue. Physiol Rev 2019; 99:1701-1763. [PMID: 31339053 DOI: 10.1152/physrev.00034.2018] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Obesity is increasingly prevalent and is associated with substantial cardiovascular risk. Adipose tissue distribution and morphology play a key role in determining the degree of adverse effects, and a key factor in the disease process appears to be the inflammatory cell population in adipose tissue. Healthy adipose tissue secretes a number of vasoactive adipokines and anti-inflammatory cytokines, and changes to this secretory profile will contribute to pathogenesis in obesity. In this review, we discuss the links between adipokine dysregulation and the development of hypertension and diabetes and explore the potential for manipulating adipose tissue morphology and its immune cell population to improve cardiovascular health in obesity.
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Affiliation(s)
- Sophie N Saxton
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Ben J Clark
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Sarah B Withers
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Etto C Eringa
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
| | - Anthony M Heagerty
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom; School of Environment and Life Sciences, University of Salford, Salford, United Kingdom; and Department of Physiology, VU University Medical Centre, Amsterdam, Netherlands
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37
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Perie L, Verma N, Xu L, Ma X, Mueller E. Transcriptional Regulation of ZNF638 in Thermogenic Cells by the cAMP Response Element Binding Protein in Male Mice. J Endocr Soc 2019; 3:2326-2340. [PMID: 31745529 PMCID: PMC6855216 DOI: 10.1210/js.2019-00238] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 09/27/2019] [Indexed: 11/19/2022] Open
Abstract
Zinc finger factors are implicated in a variety of cellular processes, including adipose tissue differentiation and thermogenesis. We have previously demonstrated that zinc finger protein 638 (ZNF638) is a transcriptional coactivator acting as an early regulator of adipogenesis in vitro. In this study, we show, to our knowledge for the first time, that, in vivo, ZNF638 abounds selectively in mature brown and subcutaneous fat tissues and in fully differentiated thermogenic adipocytes. Furthermore, gene expression studies revealed that ZNF638 is upregulated by cAMP modulators in vitro and by cold exposure and by pharmacological stimulation of β-adrenergic signaling in vivo. In silico analysis of the upstream regulatory region of the ZNF638 gene identified two putative cAMP response elements within 500 bp of the ZNF638 transcription start site. Detailed molecular analysis involving EMSA and chromatin immunoprecipitation assays demonstrated that cAMP response element binding protein (CREB) binds to these cAMP response element regions of the ZNF638 promoter, and functional studies revealed that CREB is necessary and sufficient to regulate the levels of ZNF638 transcripts. Taken together, these results demonstrate that ZNF638 is selectively expressed in mature thermogenic adipocytes and tissues and that its induction in response to classic stimuli that promote heat generation is mediated via CREB signaling, pointing to a possible novel role of ZNF638 in brown and beige fat tissues.
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Affiliation(s)
- Luce Perie
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, New York University, New York, New York
| | - Narendra Verma
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, New York University, New York, New York
| | - Lingyan Xu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Xinran Ma
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Elisabetta Mueller
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, New York University, New York, New York
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Pereira RO, McFarlane SI. The Role of Brown Adipose Tissue in Cardiovascular Disease Protection: Current Evidence and Future Directions. ACTA ACUST UNITED AC 2019; 4. [PMID: 31650091 PMCID: PMC6812533 DOI: 10.15344/2456-8007/2019/136] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Renata O Pereira
- Department of Internal Medicine - Endocrinology and Metabolism, FOE Diabetes Research Center, University of Iowa, Iowa City, IA 52242, USA
| | - Samy I McFarlane
- Department of Internal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NYC 11203, USA
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Role of epicardial adipose tissue NPR-C in acute coronary syndrome. Atherosclerosis 2019; 286:79-87. [DOI: 10.1016/j.atherosclerosis.2019.05.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/28/2019] [Accepted: 05/08/2019] [Indexed: 12/12/2022]
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Wang J, Ge J, Cao H, Zhang X, Guo Y, Li X, Xia B, Yang G, Shi X. Leptin Promotes White Adipocyte Browning by Inhibiting the Hh Signaling Pathway. Cells 2019; 8:cells8040372. [PMID: 31022919 PMCID: PMC6523697 DOI: 10.3390/cells8040372] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/18/2019] [Accepted: 04/23/2019] [Indexed: 01/16/2023] Open
Abstract
Leptin is an important secretory protein that regulates the body’s intake and energy consumption, and the functions of the Hh signaling pathway related to white adipocyte browning are controversial. It has been reported that leptin plays a critical role in adipogenesis by regulating the Hh signaling pathway, but whether there is a functional relationship between leptin, the Hh signaling pathway, and adipocyte browning is not clear. In this research, mouse white pre-adipocytes were isolated to explore the influence of the Hh signal pathway and leptin during the process described above. This showed that leptin decreased high fat diet-induced obese mice body weight and inhibited the Hh signaling pathway, which suggested that leptin and the Hh signaling pathway have an important role in obesity. After activation of the Hh signaling pathway, significantly decreased browning fat-relative gene expression levels were recorded, whereas inhibition of the Hh signaling pathway significantly up-regulated the expression of these genes. Similarly, leptin also up-regulated the expression of these genes, and increased mitochondrial DNA content, but decreased the expression of Gli, the key transcription factors of the Hh signaling pathway. In short, the results show that leptin promotes white adipocyte browning through inhibiting the Hh signaling pathway. Overall, these results demonstrate that leptin serves as a potential intervention to decrease obesity by inhibiting the Hh signaling pathway.
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Affiliation(s)
- Jie Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Jing Ge
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Haigang Cao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xiaoyu Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Yuan Guo
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xiao Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Bo Xia
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Gongshe Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xin'e Shi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Laboratory of Animal Fat Deposition and Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Xie X, Zhao J, Xie L, Wang H, Xiao Y, She Y, Ma L. Identification of differentially expressed proteins in the injured lung from zinc chloride smoke inhalation based on proteomics analysis. Respir Res 2019; 20:36. [PMID: 30770755 PMCID: PMC6377712 DOI: 10.1186/s12931-019-0995-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 02/04/2019] [Indexed: 12/13/2022] Open
Abstract
Background Lung injury due to zinc chloride smoke inhalation is very common in military personnel and leads to a high incidence of pulmonary complications and mortality. The aim of this study was to uncover the underlying mechanisms of lung injury due to zinc chloride smoke inhalation using a rat model. Methods: Histopathology analysis of rat lungs after zinc chloride smoke inhalation was performed by using haematoxylin and eosin (H&E) and Mallory staining. A lung injury rat model of zinc chloride smoke inhalation (smoke inhalation for 1, 2, 7 and 14 days) was developed. First, isobaric tags for relative and absolute quantization (iTRAQ) and weighted gene co-expression network analysis (WGCNA) were used to identify important differentially expressed proteins. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were used to study the biological functions of differentially expressed proteins. Then, analysis of lung injury repair-related differentially expressed proteins in the early (day 1 and day 2) and middle-late stages (day 7 and day 14) of lung injury after smoke inhalation was performed, followed by the protein-protein interaction (PPI) analysis of these differentially expressed proteins. Finally, the injury repair-related proteins PARK7 and FABP5 were validated by immunohistochemistry and western blot analysis. Results Morphological changes were observed in the lung tissues after zinc chloride smoke inhalation. A total of 27 common differentially expressed proteins were obtained on days 1, 2, 7 and 14 after smoke inhalation. WGCNA showed that the turquoise module (which involved 909 proteins) was most associated with smoke inhalation time. Myl3, Ckm, Adrm1 and Igfbp7 were identified in the early stages of lung injury repair. Gapdh, Acly, Tnni2, Acta1, Actn3, Pygm, Eno3 and Tpi1 (hub proteins in the PPI network) were identified in the middle-late stages of lung injury repair. Eno3 and Tpi1 were both involved in the glycolysis/gluconeogenesis signalling pathway. The expression of PARK7 and FABP5 was validated and was consistent with the proteomics analysis. Conclusion The identified hub proteins and their related signalling pathways may play crucial roles in lung injury repair due to zinc chloride smoke inhalation.
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Affiliation(s)
- Xiaowei Xie
- Medical School of Chinese PLA, Medical School of Chinese PLA, Fuxing Road, Beijing, 100853, China
| | - Jingan Zhao
- Medical School of Chinese PLA, Medical School of Chinese PLA, Fuxing Road, Beijing, 100853, China
| | - Lixin Xie
- Medical School of Chinese PLA, Medical School of Chinese PLA, Fuxing Road, Beijing, 100853, China.
| | - Haiyan Wang
- Department of Respiratory, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yan Xiao
- Department of Respiratory, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yingjia She
- Department of Pulmonary and Critical Care Medicine, Chinese PLA General Hospital, Beijing, China
| | - Lingyun Ma
- Department of Respiratory, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China
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Pahlavani M, Ramalingam L, Miller EK, Scoggin S, Menikdiwela KR, Kalupahana NS, Festuccia WT, Moustaid-Moussa N. Eicosapentaenoic Acid Reduces Adiposity, Glucose Intolerance and Increases Oxygen Consumption Independently of Uncoupling Protein 1. Mol Nutr Food Res 2019; 63:e1800821. [PMID: 30657255 DOI: 10.1002/mnfr.201800821] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/30/2018] [Indexed: 12/21/2022]
Abstract
SCOPE Brown adipose tissue (BAT) dissipates energy through uncoupling protein 1 (UCP1) and has been proposed as an anti-obesity target. It was reported previously that a high-fat (HF) diet enriched in eicosapentaenoic acid (EPA) significantly increased UCP1 and other thermogenic markers in BAT. It is hypothesized that these effects are mediated through UCP1-dependent regulation. METHODS AND RESULTS Wild-type (WT) and UCP1 knockout (KO) B6 male mice were housed at thermoneutrality and fed a HF diet, without or with eicosapentaenoic acid (EPA)-enriched fish oil. HF-fed KO mice were heavier and had higher BAT lipid content than other groups. Protective effects of EPA in WT, previously observed at 22 °C (reduced adiposity, improved glucose tolerance, and increased UCP1), disappeared at thermoneutrality. Mitochondrial proteins, cytochrome c oxidase subunit 1 (COX I), COX I, II, and IV were reduced in the KO mice compared to WT. Unexpectedly, EPA attenuated weight and fat mass gain and improved glucose tolerance in the KO mice. Finally, EPA increased BAT peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC1α) protein and gene expression, and whole-body oxygen consumption in KO mice, consistent with increased mitochondria DNA (mtDNA)/nuclear DNA (nucDNA) ratio. CONCLUSIONS EPA rescued the weight gain and glucose intolerance in UCP1 KO mice at thermoneutrality, independent of UCP1; these effects may be mediated in part via increased oxygen consumption and BAT PGC1α.
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Affiliation(s)
- Mandana Pahlavani
- Department of Nutritional Sciences and Obesity Research Cluster, Texas Tech University, Lubbock, TX, 79409, USA
| | - Latha Ramalingam
- Department of Nutritional Sciences and Obesity Research Cluster, Texas Tech University, Lubbock, TX, 79409, USA
| | - Emily K Miller
- Department of Nutritional Sciences and Obesity Research Cluster, Texas Tech University, Lubbock, TX, 79409, USA
| | - Shane Scoggin
- Department of Nutritional Sciences and Obesity Research Cluster, Texas Tech University, Lubbock, TX, 79409, USA
| | - Kalhara R Menikdiwela
- Department of Nutritional Sciences and Obesity Research Cluster, Texas Tech University, Lubbock, TX, 79409, USA
| | - Nishan S Kalupahana
- Department of Nutritional Sciences and Obesity Research Cluster, Texas Tech University, Lubbock, TX, 79409, USA.,Department of Physiology, Faculty of Medicine, University of Peradeniya, Peradeniya, 20400, Sri Lanka
| | - William T Festuccia
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, 05508, Brazil
| | - Naima Moustaid-Moussa
- Department of Nutritional Sciences and Obesity Research Cluster, Texas Tech University, Lubbock, TX, 79409, USA
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Katsi V, Marketou M, Antonopoulos AS, Vrachatis D, Parthenakis F, Tousoulis D. B-type natriuretic peptide levels and benign adiposity in obese heart failure patients. Heart Fail Rev 2018; 24:219-226. [DOI: 10.1007/s10741-018-9739-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Ruan CC, Kong LR, Chen XH, Ma Y, Pan XX, Zhang ZB, Gao PJ. A 2A Receptor Activation Attenuates Hypertensive Cardiac Remodeling via Promoting Brown Adipose Tissue-Derived FGF21. Cell Metab 2018; 28:476-489.e5. [PMID: 30017353 DOI: 10.1016/j.cmet.2018.06.013] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 04/20/2018] [Accepted: 06/15/2018] [Indexed: 12/20/2022]
Abstract
Adipocytes play important roles in regulating cardiovascular health and disease. However, the molecular mechanism underlying the endocrine role of brown adipose tissue (BAT) in pathological cardiac remodeling remains unknown. Herein we show that adenosine A2A receptor (A2AR) knockout (A2ARKO) causes interscapular BAT (iBAT) dysfunction, leading to accelerated cardiac remodeling in hypertension compared with wild-type (WT) mice. Surgical iBAT depletion induces dramatic cardiac remodeling in WT but not in A2ARKO hypertensive mice. AMPK/PGC1α signaling-induced fibroblast growth factor 21 (FGF21) in brown adipocytes is required for A2AR-mediated inhibition of hypertensive cardiac remodeling. Recombinant FGF21 administration improves cardiac remodeling in iBAT-depleted hypertensive mice. More importantly, brown adipocyte-specific A2ARKO inhibits FGF21 production and accelerates cardiac damage in hypertension. Consistently, brown adipocyte-specific FGF21 knockout abolishes the effects of A2AR agonism in attenuating hypertensive cardiac remodeling. Our findings reveal a distinctive endocrine role of BAT in hypertensive cardiac remodeling via activating A2AR/FGF21 pathway.
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MESH Headings
- Adipocytes, Brown/drug effects
- Adipocytes, Brown/metabolism
- Adipose Tissue, Brown/drug effects
- Adipose Tissue, Brown/metabolism
- Animals
- Cell Line
- Disease Models, Animal
- Fibroblast Growth Factors/genetics
- Fibroblast Growth Factors/pharmacology
- Fibroblast Growth Factors/physiology
- Fibroblasts/metabolism
- Gene Knockout Techniques
- Hypertension/metabolism
- Hypertension/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/pathology
- Receptor, Adenosine A2A/genetics
- Receptor, Adenosine A2A/physiology
- Ventricular Remodeling
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Affiliation(s)
- Cheng-Chao Ruan
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Key Laboratory of Stem Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ling-Ran Kong
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Hui Chen
- Key Laboratory of Stem Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yu Ma
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Xi Pan
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ze-Bei Zhang
- Key Laboratory of Stem Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ping-Jin Gao
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Key Laboratory of Stem Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
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Cadenas S. Mitochondrial uncoupling, ROS generation and cardioprotection. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2018; 1859:940-950. [DOI: 10.1016/j.bbabio.2018.05.019] [Citation(s) in RCA: 238] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/11/2018] [Accepted: 05/29/2018] [Indexed: 12/31/2022]
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Patel VB, Shah S, Verma S, Oudit GY. Epicardial adipose tissue as a metabolic transducer: role in heart failure and coronary artery disease. Heart Fail Rev 2018; 22:889-902. [PMID: 28762019 DOI: 10.1007/s10741-017-9644-1] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Obesity and diabetes are strongly associated with metabolic and cardiovascular disorders including dyslipidemia, coronary artery disease, hypertension, and heart failure. Adipose tissue is identified as a complex endocrine organ, which by exerting a wide array of regulatory functions at the cellular, tissue and systemic levels can have profound effects on the cardiovascular system. Different terms including "epicardial," "pericardial," and "paracardial" have been used to describe adipose tissue deposits surrounding the heart. Epicardial adipose tissue (EAT) is a unique and multifaceted fat depot with local and systemic effects. The functional and anatomic proximity of EAT to the myocardium enables endocrine, paracrine, and vasocrine effects on the heart. EAT displays a large secretosome, which regulates physiological and pathophysiological processes in the heart. Perivascular adipose tissue (PVAT) secretes adipose-derived relaxing factor, which is a "cocktail" of cytokines, adipokines, microRNAs, and cellular mediators, with a potent effect on paracrine regulation of vascular tone, vascular smooth muscle cell proliferation, migration, atherosclerosis-susceptibility, and restenosis. Although there are various physiological functions of the EAT and PVAT, a phenotypic transformation can lead to a major pathogenic role in various cardiovascular diseases. The equilibrium between the physiological and pathophysiological properties of EAT is very delicate and susceptible to the influences of intrinsic and extrinsic factors. Various adipokines secreted from EAT and PVAT have a profound effect on the myocardium and coronary arteries; targeting these adipokines could be an important therapeutic approach to counteract cardiovascular disease.
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Affiliation(s)
- Vaibhav B Patel
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, AB, T6G 2S2, Canada
- Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada
- Department of Physiology and Pharmacology and Libin Cardiovascular Institute of Alberta, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Saumya Shah
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, AB, T6G 2S2, Canada
- Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada
| | - Subodh Verma
- Division of Cardiac Surgery, Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada
- Department of Surgery, University of Toronto, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Gavin Y Oudit
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, AB, T6G 2S2, Canada.
- Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada.
- Department of Physiology, University of Alberta, Edmonton, Canada.
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Liu ES, Thoonen R, Petit E, Yu B, Buys ES, Scherrer-Crosbie M, Demay MB. Increased Circulating FGF23 Does Not Lead to Cardiac Hypertrophy in the Male Hyp Mouse Model of XLH. Endocrinology 2018; 159:2165-2172. [PMID: 29635291 PMCID: PMC5915960 DOI: 10.1210/en.2018-00174] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 03/25/2018] [Indexed: 12/23/2022]
Abstract
Serum levels of fibroblast growth factor 23 (FGF23) markedly increase with renal impairment, with FGF23 levels correlating with the presence of left ventricular hypertrophy (LVH) and mortality in patients with chronic kidney disease (CKD). FGF23 activates calcineurin/nuclear factor of activated T cell (NFAT) signaling and induces hypertrophy in murine cardiomyocytes. X-linked hypophosphatemia (XLH) is characterized by high circulating levels of FGF23 but, in contrast to CKD, is associated with hypophosphatemia. The cardiac effects of high circulating levels of FGF23 in XLH are not well defined. Thus, studies were undertaken to define the cardiac phenotype in the mouse model of XLH (Hyp mice). Echocardiographic and histological analyses demonstrated that Hyp left ventricles (LVs) are smaller than those of wild-type mice. Messenger RNA expression of cardiac hypertrophy markers was not altered in the LV or right ventricle of Hyp mice. However, the Hyp LVs had increased expression of the NFAT target genes NFATc1 and RCAN1. To determine whether phosphate alone can induce markers of hypertrophy, differentiated C2C12 myocytes were treated with phosphate. Phosphate treatment increased expression of cardiac hypertrophy markers, supporting a primary role for phosphate in inducing LVH. Although previous studies showed that increased circulating FGF23 and phosphate levels are associated with LVH, our results demonstrated that in XLH, high circulating levels of FGF23 in the setting of hypophosphatemia do not induce cardiac hypertrophy.
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Affiliation(s)
- Eva S Liu
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women’s Hospital, Boston, Massachusetts
- Endocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Robrecht Thoonen
- Harvard Medical School, Boston, Massachusetts
- Cardiology Division, Massachusetts General Hospital, Boston, Massachusetts
| | - Elizabeth Petit
- Endocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
| | - Binglan Yu
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Emmanuel S Buys
- Harvard Medical School, Boston, Massachusetts
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Marielle Scherrer-Crosbie
- Harvard Medical School, Boston, Massachusetts
- Cardiology Division, Massachusetts General Hospital, Boston, Massachusetts
| | - Marie B Demay
- Endocrine Unit, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- Correspondence: Marie B. Demay, MD, Endocrine Unit, Massachusetts General Hospital, 50 Blossom Street, Thier 11, Boston, Massachusetts 02114. E-mail:
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Panagia M, Chen HH, Croteau D, Iris Chen YC, Ran C, Luptak I, Josephson L, Colucci WS, Sosnovik DE. Multiplexed Optical Imaging of Energy Substrates Reveals That Left Ventricular Hypertrophy Is Associated With Brown Adipose Tissue Activation. Circ Cardiovasc Imaging 2018; 11:e007007. [PMID: 29555834 PMCID: PMC5908227 DOI: 10.1161/circimaging.117.007007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 01/18/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Substrate utilization in tissues with high energetic requirements could play an important role in cardiometabolic disease. Current techniques to assess energetics are limited by high cost, low throughput, and the inability to resolve multiple readouts simultaneously. Consequently, we aimed to develop a multiplexed optical imaging platform to simultaneously assess energetics in multiple organs in a high throughput fashion. METHODS AND RESULTS The detection of 18F-Fluordeoxyglucose uptake via Cerenkov luminescence and free fatty acid uptake with a fluorescent C16 free fatty acid was tested. Simultaneous uptake of these agents was measured in the myocardium, brown/white adipose tissue, and skeletal muscle in mice with/without thoracic aortic banding. Within 5 weeks of thoracic aortic banding, mice developed left ventricular hypertrophy and brown adipose tissue activation with upregulation of β3AR (β3 adrenergic receptors) and increased natriuretic peptide receptor ratio. Imaging of brown adipose tissue 15 weeks post thoracic aortic banding revealed an increase in glucose (P<0.01) and free fatty acid (P<0.001) uptake versus controls and an increase in uncoupling protein-1 (P<0.01). Similar but less robust changes were seen in skeletal muscle, while substrate uptake in white adipose tissue remained unchanged. Myocardial glucose uptake was increased post-thoracic aortic banding but free fatty acid uptake trended to decrease. CONCLUSIONS A multiplexed optical imaging technique is presented that allows substrate uptake to be simultaneously quantified in multiple tissues in a high throughput manner. The activation of brown adipose tissue occurs early in the onset of left ventricular hypertrophy, which produces tissue-specific changes in substrate uptake that may play a role in the systemic response to cardiac pressure overload.
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Affiliation(s)
- Marcello Panagia
- From the Cardiovascular Medicine Section, Department of Medicine, Boston University Medical Center, MA (M.P., D.C., I.L., W.S.C.); Cardiovascular Research Center (M.P., H.H.C., D.E.S.) and Martinos Center for Biomedical Imaging, Department of Radiology (M.P., H.H.C., Y.-C.I.C., C.R., L.J., D.E.S.), Massachusetts General Hospital, Boston, MA
| | - Howard H Chen
- From the Cardiovascular Medicine Section, Department of Medicine, Boston University Medical Center, MA (M.P., D.C., I.L., W.S.C.); Cardiovascular Research Center (M.P., H.H.C., D.E.S.) and Martinos Center for Biomedical Imaging, Department of Radiology (M.P., H.H.C., Y.-C.I.C., C.R., L.J., D.E.S.), Massachusetts General Hospital, Boston, MA
| | - Dominique Croteau
- From the Cardiovascular Medicine Section, Department of Medicine, Boston University Medical Center, MA (M.P., D.C., I.L., W.S.C.); Cardiovascular Research Center (M.P., H.H.C., D.E.S.) and Martinos Center for Biomedical Imaging, Department of Radiology (M.P., H.H.C., Y.-C.I.C., C.R., L.J., D.E.S.), Massachusetts General Hospital, Boston, MA
| | - Yin-Ching Iris Chen
- From the Cardiovascular Medicine Section, Department of Medicine, Boston University Medical Center, MA (M.P., D.C., I.L., W.S.C.); Cardiovascular Research Center (M.P., H.H.C., D.E.S.) and Martinos Center for Biomedical Imaging, Department of Radiology (M.P., H.H.C., Y.-C.I.C., C.R., L.J., D.E.S.), Massachusetts General Hospital, Boston, MA
| | - Chongzhao Ran
- From the Cardiovascular Medicine Section, Department of Medicine, Boston University Medical Center, MA (M.P., D.C., I.L., W.S.C.); Cardiovascular Research Center (M.P., H.H.C., D.E.S.) and Martinos Center for Biomedical Imaging, Department of Radiology (M.P., H.H.C., Y.-C.I.C., C.R., L.J., D.E.S.), Massachusetts General Hospital, Boston, MA
| | - Ivan Luptak
- From the Cardiovascular Medicine Section, Department of Medicine, Boston University Medical Center, MA (M.P., D.C., I.L., W.S.C.); Cardiovascular Research Center (M.P., H.H.C., D.E.S.) and Martinos Center for Biomedical Imaging, Department of Radiology (M.P., H.H.C., Y.-C.I.C., C.R., L.J., D.E.S.), Massachusetts General Hospital, Boston, MA
| | - Lee Josephson
- From the Cardiovascular Medicine Section, Department of Medicine, Boston University Medical Center, MA (M.P., D.C., I.L., W.S.C.); Cardiovascular Research Center (M.P., H.H.C., D.E.S.) and Martinos Center for Biomedical Imaging, Department of Radiology (M.P., H.H.C., Y.-C.I.C., C.R., L.J., D.E.S.), Massachusetts General Hospital, Boston, MA
| | - Wilson S Colucci
- From the Cardiovascular Medicine Section, Department of Medicine, Boston University Medical Center, MA (M.P., D.C., I.L., W.S.C.); Cardiovascular Research Center (M.P., H.H.C., D.E.S.) and Martinos Center for Biomedical Imaging, Department of Radiology (M.P., H.H.C., Y.-C.I.C., C.R., L.J., D.E.S.), Massachusetts General Hospital, Boston, MA
| | - David E Sosnovik
- From the Cardiovascular Medicine Section, Department of Medicine, Boston University Medical Center, MA (M.P., D.C., I.L., W.S.C.); Cardiovascular Research Center (M.P., H.H.C., D.E.S.) and Martinos Center for Biomedical Imaging, Department of Radiology (M.P., H.H.C., Y.-C.I.C., C.R., L.J., D.E.S.), Massachusetts General Hospital, Boston, MA.
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Qi J, Pan W, Tan Y, Luo J, Fan D, Yu J, Wu J, Zhang M. Shexiang Tongxin dropping pill protects against isoproterenol-induced myocardial ischemia in vivo and in vitro. Oncotarget 2017; 8:108958-108969. [PMID: 29312582 PMCID: PMC5752495 DOI: 10.18632/oncotarget.22440] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/28/2017] [Indexed: 12/19/2022] Open
Abstract
Shexiang Tongxin dropping pill (STDP) is a formulae of Chinese Medicine commonly used to treating angina pectoris in China. However, its mechanism of action is still yet unclear. This study investigated the roles of STDP on myocardial ischemia injury. We constructed a rat model of myocardial injury (isoproterenol subcutaneous injection, i.h, 85 mg/kg/day for 2 days), and compared among 4 groups: CON (control), ISO (ischemic injury model), MET (metoprolol), and STDP. Serum contents of Troponin I (cTnI), creatine kinase (CK), CK-MB, lactate dehydrogenase (LDH), alpha-hydroxybutyric dehydrogenase (α-HBD), and Aspartate Aminotransferase were detected and five STDP doses (1, 10, 100, 1000 and 10000 mg/kg/day) were chosen to obtain a dose-response curve. Western-blot was used to detect phosphorylations of extracellular signal-regulated kinase 1/2 (ERK1/2), protein kinase B (AKT), and camodulin kinase II (CamkII). Furthermore, an ERK1/2 inhibitor PD98059, a phosphatidylinositol-3-kinase inhibitor, LY294002, and a CamKII inhibitor, KN-93 were administered i.h. RESULTS cTnI, CK, CK-MB, α-HBD, and LDH were significantly lower in STDP than ISO (P<0.05). STDP exhibited a dose-dependent effect with a half maximal inhibitory concentration of 42 mg/kg/day. Phosphorylation of ERK1/2 was enhanced in the STDP group (vs. ISO, P<0.05), while AKT and CamkII were not changed. Further, the protective effects of STDP were offset by PD98059 administration i.h. In conclusion, STDP protected against the ISO-induced myocardial ischemic injury via an ERK1/2 signaling pathway, which provided a mechanism to support clinical applications of STDP as treatment for ischemic heart disease.
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Affiliation(s)
- Jianyong Qi
- AMI Key Laboratory of Chinese Medicine in Guangzhou, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China.,Intensive Care Research Team of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Wenjun Pan
- AMI Key Laboratory of Chinese Medicine in Guangzhou, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China.,Intensive Care Research Team of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Yafang Tan
- AMI Key Laboratory of Chinese Medicine in Guangzhou, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China.,Intensive Care Research Team of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Jiaru Luo
- AMI Key Laboratory of Chinese Medicine in Guangzhou, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China.,Intensive Care Research Team of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Dancai Fan
- AMI Key Laboratory of Chinese Medicine in Guangzhou, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China.,Intensive Care Research Team of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Juan Yu
- Animal Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China
| | - Jiashin Wu
- Department of Pharmaceutical Sciences, College of Pharmacy, Northeast Ohio Medical University, Rootstown, Ohio 44272, USA
| | - Minzhou Zhang
- AMI Key Laboratory of Chinese Medicine in Guangzhou, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China.,Intensive Care Research Team of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Province Hospital of Chinese Medicine, Guangzhou 510006, China
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Abstract
Brown adipose tissue (BAT) is the main site of adaptive thermogenesis and experimental studies have associated BAT activity with protection against obesity and metabolic diseases, such as type 2 diabetes mellitus and dyslipidaemia. Active BAT is present in adult humans and its activity is impaired in patients with obesity. The ability of BAT to protect against chronic metabolic disease has traditionally been attributed to its capacity to utilize glucose and lipids for thermogenesis. However, BAT might also have a secretory role, which could contribute to the systemic consequences of BAT activity. Several BAT-derived molecules that act in a paracrine or autocrine manner have been identified. Most of these factors promote hypertrophy and hyperplasia of BAT, vascularization, innervation and blood flow, processes that are all associated with BAT recruitment when thermogenic activity is enhanced. Additionally, BAT can release regulatory molecules that act on other tissues and organs. This secretory capacity of BAT is thought to be involved in the beneficial effects of BAT transplantation in rodents. Fibroblast growth factor 21, IL-6 and neuregulin 4 are among the first BAT-derived endocrine factors to be identified. In this Review, we discuss the current understanding of the regulatory molecules (the so-called brown adipokines or batokines) that are released by BAT that influence systemic metabolism and convey the beneficial metabolic effects of BAT activation. The identification of such adipokines might also direct drug discovery approaches for managing obesity and its associated chronic metabolic diseases.
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Affiliation(s)
- Francesc Villarroya
- Departament de Bioquímica i Biomedicina Molecular, Institut de Biomedicina, Universitat de Barcelona, Avda Diagonal 643, 08028-Barcelona, Catalonia, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Facultat de Biologia, Universitat de Barcelona, Avda Diagonal 643, 08028-Barcelona, Catalonia, Spain
| | - Rubén Cereijo
- CIBER Fisiopatología de la Obesidad y Nutrición, Facultat de Biologia, Universitat de Barcelona, Avda Diagonal 643, 08028-Barcelona, Catalonia, Spain
| | - Joan Villarroya
- CIBER Fisiopatología de la Obesidad y Nutrición, Facultat de Biologia, Universitat de Barcelona, Avda Diagonal 643, 08028-Barcelona, Catalonia, Spain
| | - Marta Giralt
- Departament de Bioquímica i Biomedicina Molecular, Institut de Biomedicina, Universitat de Barcelona, Avda Diagonal 643, 08028-Barcelona, Catalonia, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Facultat de Biologia, Universitat de Barcelona, Avda Diagonal 643, 08028-Barcelona, Catalonia, Spain
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