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Levi J, Guglielmetti C, Henrich TJ, Yoon JC, Gokhale PC, Reardon DA, Packiasamy J, Huynh L, Cabrera H, Ruzevich M, Blecha J, Peluso MJ, Huynh TL, An SM, Dornan M, Belanger AP, Nguyen QD, Seo Y, Song H, Chaumeil MM, VanBrocklin HF, Chae HD. [ 18F]F-AraG imaging reveals association between neuroinflammation and brown- and bone marrow adipose tissue. Commun Biol 2024; 7:793. [PMID: 38951146 PMCID: PMC11217368 DOI: 10.1038/s42003-024-06494-x] [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: 01/15/2024] [Accepted: 06/22/2024] [Indexed: 07/03/2024] Open
Abstract
Brown and brown-like adipose tissues have attracted significant attention for their role in metabolism and therapeutic potential in diabetes and obesity. Despite compelling evidence of an interplay between adipocytes and lymphocytes, the involvement of these tissues in immune responses remains largely unexplored. This study explicates a newfound connection between neuroinflammation and brown- and bone marrow adipose tissue. Leveraging the use of [18F]F-AraG, a mitochondrial metabolic tracer capable of tracking activated lymphocytes and adipocytes simultaneously, we demonstrate, in models of glioblastoma and multiple sclerosis, the correlation between intracerebral immune infiltration and changes in brown- and bone marrow adipose tissue. Significantly, we show initial evidence that a neuroinflammation-adipose tissue link may also exist in humans. This study proposes the concept of an intricate immuno-neuro-adipose circuit, and highlights brown- and bone marrow adipose tissue as an intermediary in the communication between the immune and nervous systems. Understanding the interconnectedness within this circuitry may lead to advancements in the treatment and management of various conditions, including cancer, neurodegenerative diseases and metabolic disorders.
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Affiliation(s)
- Jelena Levi
- CellSight Technologies Incorporated, San Francisco, CA, USA.
| | - Caroline Guglielmetti
- Department of Physical Therapy and Rehabilitation Science, University of California San Francisco, San Francisco, CA, USA
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
- Mallinckrodt Institute of Radiology, Washington University in St. Louis, St. Louis, MO, USA
| | - Timothy J Henrich
- Division of Experimental Medicine, University of California San Francisco, San Francisco, CA, USA
| | - John C Yoon
- Division of Endocrinology, Department of Internal Medicine, University of California Davis School of Medicine, Davis, CA, USA
| | | | | | | | - Lyna Huynh
- CellSight Technologies Incorporated, San Francisco, CA, USA
| | - Hilda Cabrera
- CellSight Technologies Incorporated, San Francisco, CA, USA
| | | | - Joseph Blecha
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Michael J Peluso
- Division of HIV, ID and Global Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Tony L Huynh
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Sung-Min An
- Division of Endocrinology, Department of Internal Medicine, University of California Davis School of Medicine, Davis, CA, USA
| | - Mark Dornan
- Molecular Cancer Imaging Facility, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Anthony P Belanger
- Molecular Cancer Imaging Facility, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Quang-Dé Nguyen
- Lurie Family Imaging Center, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Youngho Seo
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Hong Song
- Department of Radiology, Stanford University, Palo Alto, CA, USA
| | - Myriam M Chaumeil
- Department of Physical Therapy and Rehabilitation Science, University of California San Francisco, San Francisco, CA, USA
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Henry F VanBrocklin
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Hee-Don Chae
- CellSight Technologies Incorporated, San Francisco, CA, USA
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Trevelyan CJ, MacCannell ADV, Stewart L, Tarousa T, Taylor HA, Murray M, Bageghni SA, Hemmings KE, Drinkhill MJ, Roberts LD, Smith AJ, Porter KE, Forbes KA, Turner NA. MiR-214-3p Regulates Piezo1, Lysyl Oxidases and Mitochondrial Function in Human Cardiac Fibroblasts. Matrix Biol 2024:S0945-053X(24)00089-1. [PMID: 38925225 DOI: 10.1016/j.matbio.2024.06.005] [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: 01/18/2024] [Revised: 05/20/2024] [Accepted: 06/20/2024] [Indexed: 06/28/2024]
Abstract
Cardiac fibroblasts are pivotal regulators of cardiac homeostasis and are essential in the repair of the heart after myocardial infarction (MI), but their function can also become dysregulated, leading to adverse cardiac remodelling involving both fibrosis and hypertrophy. MicroRNAs (miRNAs) are noncoding RNAs that target mRNAs to prevent their translation, with specific miRNAs showing differential expression and regulation in cardiovascular disease. Here, we show that miR-214-3p is enriched in the fibroblast fraction of the murine heart, and its levels are increased with cardiac remodelling associated with heart failure, or in the acute phase after experimental MI. Tandem mass tagging proteomics and in-silico network analyses were used to explore protein targets regulated by miR-214-3p in cultured human cardiac fibroblasts from multiple donors. Overexpression of miR-214-3p by miRNA mimics resulted in decreased expression and activity of the Piezo1 mechanosensitive cation channel, increased expression of the entire lysyl oxidase (LOX) family of collagen cross-linking enzymes, and decreased expression of an array of mitochondrial proteins, including mitofusin-2 (MFN2), resulting in mitochondrial dysfunction, as measured by citrate synthase and Seahorse mitochondrial respiration assays. Collectively, our data suggest that miR-214-3p is an important regulator of cardiac fibroblast phenotypes and functions key to cardiac remodelling, and that this miRNA represents a potential therapeutic target in cardiovascular disease.
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Affiliation(s)
- Christopher J Trevelyan
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Amanda D V MacCannell
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Leander Stewart
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Theodora Tarousa
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK; School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Hannah A Taylor
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Michael Murray
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Sumia A Bageghni
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Karen E Hemmings
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Mark J Drinkhill
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Lee D Roberts
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Andrew J Smith
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Karen E Porter
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Karen A Forbes
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Neil A Turner
- Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), School of Medicine, University of Leeds, Leeds LS2 9JT, UK.
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3
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Carpentier AC, Blondin DP. Is stimulation of browning of human adipose tissue a relevant therapeutic target? ANNALES D'ENDOCRINOLOGIE 2024; 85:184-189. [PMID: 38871497 DOI: 10.1016/j.ando.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Brown adipose tissue (BAT) and beige adipose tissues are important contributors to cold-induced whole body thermogenesis in rodents. The documentation in humans of cold- and ß-adrenergic receptor agonist-stimulated BAT glucose uptake using positron emission tomography (PET) and of a decrease of this response in individuals with cardiometabolic disorders led to the suggestion that BAT/beige adipose tissues could be relevant targets for prevention and treatment of these conditions. In this brief review, we will critically assess this question by first describing the basic rationale for this affirmation, second by examining the evidence in human studies, and third by discussing the possible means to activate the thermogenic response of these tissues in humans.
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Affiliation(s)
- André C Carpentier
- Division of Endocrinology, Department of Medicine, Centre de recherche du Centre hospitalier universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Sherbrooke, Québec, Canada.
| | - Denis P Blondin
- Division of Neurology, Department of Medicine, Centre de recherche du Centre hospitalier universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
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Gao Y, Liang Z, Mao B, Zheng X, Shan J, Jin C, Liu S, Kolliputi N, Chen Y, Xu F, Shi L. Gut microbial GABAergic signaling improves stress-associated innate immunity to respiratory viral infection. J Adv Res 2024; 60:41-56. [PMID: 37353002 PMCID: PMC10284622 DOI: 10.1016/j.jare.2023.06.008] [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: 03/05/2023] [Revised: 06/14/2023] [Accepted: 06/18/2023] [Indexed: 06/25/2023] Open
Abstract
INTRODUCTION Epidemiological evidences reveal that populations with psychological stress have an increased likelihood of respiratory viral infection involving influenza A virus (IAV) and SARS-CoV-2. OBJECTIVES This study aims to explore the potential correlation between psychological stress and increased susceptibility to respiratory viral infections and how this may contribute to a more severe disease progression. METHODS A chronic restraint stress (CRS) mouse model was used to infect IAV and estimate lung inflammation. Alveolar macrophages (AMs) were observed in the numbers, function and metabolic-epigenetic properties. To confirm the central importance of the gut microbiome in stress-exacerbated viral pneumonia, mice were conducted through microbiome depletion and gut microbiome transplantation. RESULTS Stress exposure induced a decline in Lactobacillaceae abundance and hence γ-aminobutyric acid (GABA) level in mice. Microbial-derived GABA was released in the peripheral and sensed by AMs via GABAAR, leading to enhanced mitochondrial metabolism and α-ketoglutarate (αKG) generation. The metabolic intermediator in turn served as the cofactor for the epigenetic regulator Tet2 to catalyze DNA hydroxymethylation and promoted the PPARγ-centered gene program underpinning survival, self-renewing, and immunoregulation of AMs. Thus, we uncover an unappreciated GABA/Tet2/PPARγ regulatory circuitry initiated by the gut microbiome to instruct distant immune cells through a metabolic-epigenetic program. Accordingly, reconstitution with GABA-producing probiotics, adoptive transferring of GABA-conditioned AMs, or resumption of pulmonary αKG level remarkably improved AMs homeostasis and alleviated severe pneumonia in stressed mice. CONCLUSION Together, our study identifies microbiome-derived tonic signaling tuned by psychological stress to imprint resident immune cells and defensive response in the lungs. Further studies are warranted to translate these findings, basically from murine models, into the individuals with psychiatric stress during respiratory viral infection.
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Affiliation(s)
- Yanan Gao
- Department of Immunology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zihao Liang
- Department of Immunology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Bingyong Mao
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xudong Zheng
- Department of Immunology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jinjun Shan
- Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Cuiyuan Jin
- Institute of Translational Medicine, Zhejiang Shuren University, Hangzhou, Zhejiang 310015, China
| | - Shijia Liu
- Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Narasaiah Kolliputi
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Yugen Chen
- Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Feng Xu
- Department of Infectious Diseases, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China.
| | - Liyun Shi
- Institute of Translational Medicine, Zhejiang Shuren University, Hangzhou, Zhejiang 310015, China.
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Peng Z, Zeng Y, Tan Q, He Q, Wang S, Wang J. 6-Gingerol alleviates ectopic lipid deposition in skeletal muscle by regulating CD36 translocation and mitochondrial function. Biochem Biophys Res Commun 2024; 708:149786. [PMID: 38493545 DOI: 10.1016/j.bbrc.2024.149786] [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: 02/19/2024] [Accepted: 03/12/2024] [Indexed: 03/19/2024]
Abstract
Ectopic lipid deposition (ELD) and mitochondrial dysfunction are common causes of metabolic disorders in humans. Consuming too much fructose can result in mitochondrial dysfunction and metabolic disorders. 6-Gingerol, the main component of ginger (Zingiber officinale Roscoe), has been proven to alleviate metabolic disorders. This study seeks to examine the effects of 6-gingerol on metabolic disorders caused by fructose and uncover the underlying molecular mechanisms. In this study, the results showed that 6-Gingerol ameliorated high-fructose-induced metabolic disorders. Moreover, it inhibited CD36 membrane translocation, increased CD36 expression in the mitochondria, and decreased the O-GlcNAc modification of CD36 and OGT expression in vitro and vivo. In addition, 6-Gingerol enhanced the performance of mitochondria in the skeletal muscle and boosted the respiratory capability of L6 myotubes. This study provides a theoretical basis and new insights for the development of lipid-lowering drugs in clinical practice.
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Affiliation(s)
- Ze Peng
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
| | - Yan Zeng
- College of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - Qi Tan
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
| | - Qifeng He
- College of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - Shang Wang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China.
| | - Jianwei Wang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China; Chongqing College of Traditional Chinese Medicine, Chongqing, China.
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6
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Yang Z, Jiang J, Tan Y, Yang G, Chen M, Huang J, Liu J, Wei X, Wang S, Luo X, Han Z. Sexual dimorphism in thermogenic regulators and metrnl expression in adipose tissue of offspring mice exposed to maternal and postnatal overnutrition. J Physiol Biochem 2024; 80:407-420. [PMID: 38492180 DOI: 10.1007/s13105-024-01013-2] [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: 01/17/2023] [Accepted: 02/26/2024] [Indexed: 03/18/2024]
Abstract
Current study investigated the impact of maternal and postnatal overnutrition on phenotype of adipose, in relation to offspring thermogenesis and sex. Female C57BL/6 J mice were fed with CHOW or high fat diet (HFD) for 2 weeks before mating, throughout gestation and lactation. At weaning, pups were fed to 9 weeks old with CHOW or HFD, which resulted in four groups for each gender--male or female: CHOW-CHOW (CC), CHOW-HFD (CH), HFD-CHOW (HC), HFD-HFD (HH). Maternal and post-weaning HFD enhanced thermogenic factors such as Acox1, Dio2 and Cox8b in iBAT of male and female offspring, but increased SIRT1, PGC-1α and UCP1 only in female. However, Acox1, Dio2 and Cox8b mRNA expression and SIRT1, PGC-1α and UCP1 protein expression were only enhanced upon maternal and post-weaning HFD in sWAT and pWAT of female offspring. Increased metrnl expression in adipose were observed in sex- and depot-specific manner, while enhanced circulating metrnl level was only observed in male offspring undergoing maternal HFD. Palmitic acid changed metrnl expression during preadipocytes differentiation and siRNA-mediated knockdown of metrnl inhibited preadipocyte differentiation. Female offspring were more prone to resist adverse outcomes induced by maternal and post-weaning overnutrition, which probably related to metrnl expression and thermogenesis.
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Affiliation(s)
- Zhao Yang
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Jianan Jiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Yutian Tan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Guiying Yang
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Miao Chen
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Jiaqi Huang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Jing Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Xiaojing Wei
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Siyao Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Xiao Luo
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China.
- Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China.
| | - Zhen Han
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
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Gómez-Hernández A, de las Heras N, Gálvez BG, Fernández-Marcelo T, Fernández-Millán E, Escribano Ó. New Mediators in the Crosstalk between Different Adipose Tissues. Int J Mol Sci 2024; 25:4659. [PMID: 38731880 PMCID: PMC11083914 DOI: 10.3390/ijms25094659] [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: 03/22/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Adipose tissue is a multifunctional organ that regulates many physiological processes such as energy homeostasis, nutrition, the regulation of insulin sensitivity, body temperature, and immune response. In this review, we highlight the relevance of the different mediators that control adipose tissue activity through a systematic review of the main players present in white and brown adipose tissues. Among them, inflammatory mediators secreted by the adipose tissue, such as classical adipokines and more recent ones, elements of the immune system infiltrated into the adipose tissue (certain cell types and interleukins), as well as the role of intestinal microbiota and derived metabolites, have been reviewed. Furthermore, anti-obesity mediators that promote the activation of beige adipose tissue, e.g., myokines, thyroid hormones, amino acids, and both long and micro RNAs, are exhaustively examined. Finally, we also analyze therapeutic strategies based on those mediators that have been described to date. In conclusion, novel regulators of obesity, such as microRNAs or microbiota, are being characterized and are promising tools to treat obesity in the future.
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Affiliation(s)
- Almudena Gómez-Hernández
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
| | - Natalia de las Heras
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain;
| | - Beatriz G. Gálvez
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
| | - Tamara Fernández-Marcelo
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
| | - Elisa Fernández-Millán
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Óscar Escribano
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
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8
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Cui J, Wang M, Zhang W, Sun J, Zhang Y, Zhao L, Hong Z, Li D, Huang YX, Zhang N, Chen Y. Enhancing insulin sensitivity in type 2 diabetes mellitus using apelin-loaded small extracellular vesicles from Wharton's jelly-derived mesenchymal stem cells: a novel therapeutic approach. Diabetol Metab Syndr 2024; 16:84. [PMID: 38622732 PMCID: PMC11020616 DOI: 10.1186/s13098-024-01332-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/09/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM), characterized by β-cell dysfunction and insulin resistance (IR), presents considerable treatment challenges. Apelin is an adipocyte-derived factor that shows promise in improving IR; however, it is limited by poor targeting and a short half-life. In the present study, engineered small extracellular vesicles (sEVs) derived from Wharton's jelly-derived mesenchymal stem cells (WJ-MSCs) loaded with apelin were used to address the limitations of the therapeutic application of apelin. METHODS WJ-MSCs were transduced to obtain engineered sEVs loaded with overexpressed apelin (apelin-MSC-sEVs) and the control sEVs (MSC-sEVs). T2DM mice were injected with apelin-MSC-sEVs and MSC-sEVs, and blood glucose monitoring, glucose and insulin tolerance tests, confocal microscopy, and immunocytochemical analysis were performed. IR models of 3T3-L1 adipocytes were employed to detect GLUT4 expression in each group using western blotting; the affected pathways were determined by measuring the changes in Akt and AMPK signaling and phosphorylation. RESULTS Upon successful engineering, WJ-MSCs demonstrated significant overexpression of apelin. The genetic modification did not adversely impact the characteristics of sEVs, ranging from surface protein markers, morphology, to particle size, but generated apelin-overexpressed sEVs. Apelin-MSC-sEVs treatment resulted in notable enhancement of Akt and AMPK pathway activities within 3T3-L1 adipocytes and adipose tissues of T2DM mice. Furthermore, the apelin-loaded sEVs significantly reduced plasma glucose levels, increased pancreatic β-cell proliferation, improved insulin and glucose tolerance, and modulated pro-inflammatory cytokine profiles, compared to mice treated with the control sEVs. CONCLUSION Our study developed novel genetically engineered apelin-loaded sEVs derived from WJ-MSCs, and demonstrated their potent role in augmenting insulin sensitivity and regulating inflammatory responses, highlighting their therapeutic promise in T2DM management. The findings open new avenues for the development of clinically viable treatments for T2DM in humans using the apelin-loaded sEVs.
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Affiliation(s)
- Jing Cui
- The Fifth School of Clinical Medicine, Navy Clinical College, Anhui Medical University, Hefei, Anhui, China
- Department of Cardiology, The Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China·, China
| | - Mingkun Wang
- The Fifth School of Clinical Medicine, Navy Clinical College, Anhui Medical University, Hefei, Anhui, China
| | - Wenhong Zhang
- The Fifth School of Clinical Medicine, Navy Clinical College, Anhui Medical University, Hefei, Anhui, China
- Department of Cardiology, The Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China·, China
| | - Jiachen Sun
- Department of Dermatology, Peking University Third Hospital, Beijing, China
| | - Yan Zhang
- Department of Cardiology, The Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China·, China
| | - Li Zhao
- Department of Cardiology, The Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China·, China
| | - Zhibo Hong
- Department of Cardiology, The Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China·, China
| | - Dongtao Li
- Department of Cardiology, The Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China·, China
| | - Yi Xiong Huang
- Department of Cardiology, The Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China·, China
| | - Ningkun Zhang
- Department of Cardiology, The Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China·, China.
| | - Yu Chen
- The Fifth School of Clinical Medicine, Navy Clinical College, Anhui Medical University, Hefei, Anhui, China.
- Department of Cardiology, The Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China·, China.
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9
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Liang D, Li G. Pulling the trigger: Noncoding RNAs in white adipose tissue browning. Rev Endocr Metab Disord 2024; 25:399-420. [PMID: 38157150 DOI: 10.1007/s11154-023-09866-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/11/2023] [Indexed: 01/03/2024]
Abstract
White adipose tissue (WAT) serves as the primary site for energy storage and endocrine regulation in mammals, while brown adipose tissue (BAT) is specialized for thermogenesis and energy expenditure. The conversion of white adipocytes to brown-like fat cells, known as browning, has emerged as a promising therapeutic strategy for reversing obesity and its associated co-morbidities. Noncoding RNAs (ncRNAs) are a class of transcripts that do not encode proteins but exert regulatory functions on gene expression at various levels. Recent studies have shed light on the involvement of ncRNAs in adipose tissue development, differentiation, and function. In this review, we aim to summarize the current understanding of ncRNAs in adipose biology, with a focus on their role and intricate mechanisms in WAT browning. Also, we discuss the potential applications and challenges of ncRNA-based therapies for overweight and its metabolic disorders, so as to combat the obesity epidemic in the future.
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Affiliation(s)
- Dehuan Liang
- The Key Laboratory of Geriatrics, Institute of Geriatric Medicine, Beijing Institute of Geriatrics, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730, People's Republic of China
- Fifth School of Clinical Medicine (Beijing Hospital), Peking University, Beijing, 100730, People's Republic of China
| | - Guoping Li
- The Key Laboratory of Geriatrics, Institute of Geriatric Medicine, Beijing Institute of Geriatrics, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730, People's Republic of China.
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10
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Zhang Y, Xue J, Zhu W, Wang H, Xi P, Tian D. TRPV4 in adipose tissue ameliorates diet-induced obesity by promoting white adipocyte browning. Transl Res 2024; 266:16-31. [PMID: 37926276 DOI: 10.1016/j.trsl.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/12/2023] [Accepted: 11/02/2023] [Indexed: 11/07/2023]
Abstract
The induction of adipocyte browning to increase energy expenditure is a promising strategy to combat obesity. Transient receptor potential channel V4 (TRPV4) functions as a nonselective cation channel in various cells and plays physiological roles in osmotic and thermal sensations. However, the function of TRPV4 in energy metabolism remains controversial. This study revealed the role of TRPV4 in adipose tissue in the development of obesity. Adipose-specific TRPV4 overexpression protected mice against diet-induced obesity (DIO) and promoted white fat browning. TRPV4 overexpression was also associated with decreased adipose inflammation and improved insulin sensitivity. Mechanistically, TRPV4 could directly promote white adipocyte browning via the AKT pathway. Consistently, adipose-specific TRPV4 knockout exacerbated DIO with impaired thermogenesis and activated inflammation. Corroborating our findings in mice, TRPV4 expression was low in the white adipose tissue of obese people. Our results positioned TRPV4 as a potential regulator of obesity and energy expenditure in mice and humans.
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Affiliation(s)
- Yan Zhang
- Department of Clinical Laboratory Diagnostics, Tianjin Medical University, Tianjin 300203, China
| | - Jie Xue
- Department of Pathology, Handan Central Hospital, Handan, Hebei 057150, China
| | - Wenjuan Zhu
- Department of Nuclear Medicine, Third Hospital of Nanchang, Nanchang, Jiangxi 330008, China
| | - Haomin Wang
- Department of Human Anatomy and Histology, Tianjin Medical University, Tianjin 300070, China
| | - Pengjiao Xi
- Department of Clinical Laboratory Diagnostics, Tianjin Medical University, Tianjin 300203, China.
| | - Derun Tian
- Department of Clinical Laboratory Diagnostics, Tianjin Medical University, Tianjin 300203, China; Department of Human Anatomy and Histology, Tianjin Medical University, Tianjin 300070, China.
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11
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Hasan S, Ghani N, Zhao X, Good J, Huang A, Wrona HL, Liu J, Liu CJ. Dietary pyruvate targets cytosolic phospholipase A2 to mitigate inflammation and obesity in mice. Protein Cell 2024:pwae014. [PMID: 38512816 DOI: 10.1093/procel/pwae014] [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: 11/21/2023] [Indexed: 03/23/2024] Open
Abstract
Obesity has a multifactorial etiology and is known to be a state of chronic low-grade inflammation, known as meta-inflammation. This state is associated with the development of metabolic disorders such as glucose intolerance and nonalcoholic fatty liver disease. Pyruvate is a glycolytic metabolite and a crucial node in various metabolic pathways. However, its role and molecular mechanism in obesity and associated complications are obscure. In this study, we reported that pyruvate substantially inhibited adipogenic differentiation in vitro and its administration significantly prevented HFD-induced weight gain, white adipose tissue inflammation, and metabolic dysregulation. To identify the target proteins of pyruvate, drug affinity responsive target stability was employed with proteomics, cellular thermal shift assay, and isothermal drug response to detect the interactions between pyruvate and its molecular targets. Consequently, we identified cytosolic phospholipase A2 (cPLA2) as a novel molecular target of pyruvate and demonstrated that pyruvate restrained diet-induced obesity, white adipose tissue inflammation, and hepatic steatosis in a cPLA2-dependent manner. Studies with global ablation of cPLA2 in mice showed that the protective effects of pyruvate were largely abrogated, confirming the importance of pyruvate/cPLA2 interaction in pyruvate attenuation of inflammation and obesity. Overall, our study not only establishes pyruvate as an antagonist of cPLA2 signaling and a potential therapeutic option for obesity, but it also sheds light on the mechanism of its action. Pyruvate's prior clinical use indicates that it can be considered a safe and viable alternative for obesity, whether consumed as a dietary supplement or as part of a regular diet.
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Affiliation(s)
- Sadaf Hasan
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Nabil Ghani
- Department of Medicine, Division of Internal Medicine, Saint Peter's University Hospital, Rutgers University, New Brunswick, NJ 08901, USA
| | - Xiangli Zhao
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- Department of Orthopedics & Rehabilitation, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Julia Good
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Amanda Huang
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- Cornell University, Ithaca, New York, New York, USA
| | - Hailey Lynn Wrona
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- Department of Biomedical Engineering, University of North Carolina Chapel Hill, Chapel Hill, North Carolina
| | - Jody Liu
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- New York University, NY 14853, USA
| | - Chuan-Ju Liu
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, NY 10016, USA
- Department of Cell Biology, New York University Grossman School of Medicine, New York, NY 10016, USA
- Department of Orthopedics & Rehabilitation, Yale University School of Medicine, New Haven, CT 06510, USA
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12
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Forero-Rodríguez J, Zimmermann J, Taubenheim J, Arias-Rodríguez N, Caicedo-Narvaez JD, Best L, Mendieta CV, López-Castiblanco J, Gómez-Muñoz LA, Gonzalez-Santos J, Arboleda H, Fernandez W, Kaleta C, Pinzón A. Changes in Bacterial Gut Composition in Parkinson's Disease and Their Metabolic Contribution to Disease Development: A Gut Community Reconstruction Approach. Microorganisms 2024; 12:325. [PMID: 38399728 PMCID: PMC10893096 DOI: 10.3390/microorganisms12020325] [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: 12/13/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 02/25/2024] Open
Abstract
Parkinson's disease (PD) is a chronic and progressive neurodegenerative disease with the major symptoms comprising loss of movement coordination (motor dysfunction) and non-motor dysfunction, including gastrointestinal symptoms. Alterations in the gut microbiota composition have been reported in PD patients vs. controls. However, it is still unclear how these compositional changes contribute to disease etiology and progression. Furthermore, most of the available studies have focused on European, Asian, and North American cohorts, but the microbiomes of PD patients in Latin America have not been characterized. To address this problem, we obtained fecal samples from Colombian participants (n = 25 controls, n = 25 PD idiopathic cases) to characterize the taxonomical community changes during disease via 16S rRNA gene sequencing. An analysis of differential composition, diversity, and personalized computational modeling was carried out, given the fecal bacterial composition and diet of each participant. We found three metabolites that differed in dietary habits between PD patients and controls: carbohydrates, trans fatty acids, and potassium. We identified six genera that changed significantly in their relative abundance between PD patients and controls, belonging to the families Lachnospiraceae, Lactobacillaceae, Verrucomicrobioaceae, Peptostreptococcaceae, and Streptococcaceae. Furthermore, personalized metabolic modeling of the gut microbiome revealed changes in the predicted production of seven metabolites (Indole, tryptophan, fructose, phenylacetic acid, myristic acid, 3-Methyl-2-oxovaleric acid, and N-Acetylneuraminic acid). These metabolites are associated with the metabolism of aromatic amino acids and their consumption in the diet. Therefore, this research suggests that each individual's diet and intestinal composition could affect host metabolism. Furthermore, these findings open the door to the study of microbiome-host interactions and allow us to contribute to personalized medicine.
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Affiliation(s)
- Johanna Forero-Rodríguez
- Bioinformatics and Systems Biology Research Group, Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (J.F.-R.); (J.D.C.-N.); (J.L.-C.)
- Medical Systems Biology Research Group, Institute of Experimental Medicine, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany (J.T.)
| | - Johannes Zimmermann
- Medical Systems Biology Research Group, Institute of Experimental Medicine, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany (J.T.)
| | - Jan Taubenheim
- Medical Systems Biology Research Group, Institute of Experimental Medicine, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany (J.T.)
| | - Natalia Arias-Rodríguez
- Bioinformatics and Systems Biology Research Group, Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (J.F.-R.); (J.D.C.-N.); (J.L.-C.)
| | - Juan David Caicedo-Narvaez
- Bioinformatics and Systems Biology Research Group, Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (J.F.-R.); (J.D.C.-N.); (J.L.-C.)
- Neurosciences Research Group, Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Lena Best
- Medical Systems Biology Research Group, Institute of Experimental Medicine, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany (J.T.)
| | - Cindy V. Mendieta
- PhD Program in Clinical Epidemiology, Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine, Pontificia Universidad Javeriana, Bogotá 110231, Colombia;
- Department of Nutrition and Biochemistry, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Julieth López-Castiblanco
- Bioinformatics and Systems Biology Research Group, Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (J.F.-R.); (J.D.C.-N.); (J.L.-C.)
| | - Laura Alejandra Gómez-Muñoz
- Neurosciences Research Group, Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia
- Cell Death Research Group, Medical School and Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Janneth Gonzalez-Santos
- Structural Biochemistry and Bioinformatics Laboratory, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Humberto Arboleda
- Cell Death Research Group, Medical School and Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - William Fernandez
- Neurosciences Research Group, Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia
- Cell Death Research Group, Medical School and Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Christoph Kaleta
- Medical Systems Biology Research Group, Institute of Experimental Medicine, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany (J.T.)
| | - Andrés Pinzón
- Bioinformatics and Systems Biology Research Group, Genetic Institute, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (J.F.-R.); (J.D.C.-N.); (J.L.-C.)
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13
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Wu ZW, Wang L, Mou Q, Wang F, Wang Y, Fang T, Yin Z, Du ZQ, Yang CX. l-valine supplementation disturbs vital molecular pathways and induces apoptosis in mouse testes. Theriogenology 2024; 215:31-42. [PMID: 38000127 DOI: 10.1016/j.theriogenology.2023.11.020] [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: 12/07/2022] [Revised: 10/04/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023]
Abstract
The branched-chain amino acids (BCAAs: leucine, isoleucine and valine) are essential for animal growth and metabolic health. However, the effect of valine on male reproduction and its underlying molecular mechanism remain largely unknown. Here, we showed that l-valine supplementation (0.30% or 0.45%, water drinking for 3 weeks) did not change body and testis weights, but significantly altered morphology of sertoli cells and germ cells within seminiferous tubule, and enlarged the space between seminiferous tubules within mouse testis. l-valine treatment (0.45%) increased significantly the Caspase3/9 mRNA levels and CASPASE9 protein levels, therefore induced apoptosis of mouse testis. Moreover, gene expression levels related to autophagy (Atg5 and Lamb3), DNA 5 mC methylation (Dnmt1, Dnmt3a, Tet2 and Tet3), RNA m6A methylation (Mettl14, Alkbh5 and Fto), and m6A methylation binding proteins (Ythdf1/2/3 and Igf2bp1/2) were significantly reduced. Protein abundances of ALKBH5, FTO and YTHDF3 were also significantly reduced, but not for ATG5 and TET2. Testis transcriptome sequencing detected 537 differentially expressed genes (DEGs, 26 up-regulated and 511 down-regulated), involved in multiple important signaling pathways. RT-qPCR validated 8 of 9 DEGs (Cd36, Scd1, Insl3, Anxa5, Lcn2, Hsd17b3, Cyp11a1, Cyp17a1 and Agt) to be decreased significantly, consistent with RNA-seq results. Taken together, l-valine treatment could disturb multiple signaling pathways (autophagy and RNA methylation etc.), and induce apoptosis to destroy the tissue structure of mouse testis.
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Affiliation(s)
- Zi-Wei Wu
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China; Center of Animal Breeding Technology Innovation of Hubei Province, China
| | - Li Wang
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China; Center of Animal Breeding Technology Innovation of Hubei Province, China
| | - Qiao Mou
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Fang Wang
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China; Center of Animal Breeding Technology Innovation of Hubei Province, China
| | - Yi Wang
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China; Center of Animal Breeding Technology Innovation of Hubei Province, China
| | - Ting Fang
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China; Center of Animal Breeding Technology Innovation of Hubei Province, China
| | - Zongjun Yin
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Zhi-Qiang Du
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China; Center of Animal Breeding Technology Innovation of Hubei Province, China.
| | - Cai-Xia Yang
- College of Animal Science, Yangtze University, Jingzhou, 434025, Hubei, China; Center of Animal Breeding Technology Innovation of Hubei Province, China.
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14
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Ham M, Cho Y, Kang T, Oh T, Kim H, Kim K. Transcriptome-wide analysis reveals GYG2 as a mitochondria-related aging biomarker in human subcutaneous adipose tissue. Aging Cell 2024; 23:e14049. [PMID: 38062989 PMCID: PMC10861210 DOI: 10.1111/acel.14049] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 11/05/2023] [Accepted: 11/13/2023] [Indexed: 02/15/2024] Open
Abstract
Subcutaneous adipose tissue (SAT), a vital energy reservoir and endocrine organ for maintaining systemic glucose, lipid, and energy homeostasis, undergoes significant changes with age. However, among the existing aging-related markers, only few genes are associated with SAT aging. In this study, weighted gene co-expression network analysis was used on a transcriptome of SAT obtained from the Genotype-Tissue Expression portal to identify biologically relevant, SAT-specific, and age-related marker genes. We found modules that exhibited significant changes with age and identified GYG2 as a novel key aging associated gene. The link between GYG2 and mitochondrial function as well as brown/beige adipocytes was supported using additional bioinformatics and experimental analyses. Additionally, we identified PPARG as the transcription factor of GYG2 expression. The newly discovered GYG2 marker can be used to not only determine the age of SAT but also uncover new mechanisms underlying SAT aging.
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Affiliation(s)
- Mira Ham
- R&I Unit, Amorepacific CorporationGyeonggi‐doKorea
| | - Yeonju Cho
- R&I Unit, Amorepacific CorporationGyeonggi‐doKorea
| | - Tae‐Wook Kang
- Department of BioinformaticsThe Moagen Inc.DaejeonKorea
| | - Taeyun Oh
- Department of Internal Medicine, Institute of GastroenterologyYonsei University College of MedicineSeoulKorea
| | | | - Kyu‐Han Kim
- R&I Unit, Amorepacific CorporationGyeonggi‐doKorea
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15
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Schäfer M, Sydow D, Schauer M, Doumbia J, Schmitt T, Rödel MO. Species- and sex-specific chemical composition from an internal gland-like tissue of an African frog family. Proc Biol Sci 2024; 291:20231693. [PMID: 38196358 PMCID: PMC10777154 DOI: 10.1098/rspb.2023.1693] [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: 08/04/2023] [Accepted: 11/27/2023] [Indexed: 01/11/2024] Open
Abstract
Intraspecific chemical communication in frogs is understudied and the few published cases are limited to externally visible and male-specific breeding glands. Frogs of the family Odontobatrachidae, a West African endemic complex of five morphologically cryptic species, have large, fatty gland-like strands along their lower mandible. We investigated the general anatomy of this gland-like strand and analysed its chemical composition. We found the strand to be present in males and females of all species. The strand varies in markedness, with well-developed strands usually found in reproductively active individuals. The strands are situated under particularly thin skin sections, the vocal sac in male frogs and a respective area in females. Gas-chromatography/mass spectrometry and multivariate analysis revealed that the strands contain sex- and species-specific chemical profiles, which are consistent across geographically distant populations. The profiles varied between reproductive and non-reproductive individuals. These results indicate that the mandibular strands in the Odontobatrachidae comprise a so far overlooked structure (potentially a gland) that most likely plays a role in the mating and/or breeding behaviour of the five Odontobatrachus species. Our results highlight the relevance of multimodal signalling in anurans, and indicate that chemical communication in frogs may not be restricted to sexually dimorphic, apparent skin glands.
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Affiliation(s)
- Marvin Schäfer
- Museum für Naturkunde – Leibniz Institute for Evolution and Biodiversity Science, Invalidenstraße 43, 10115 Berlin, Germany
| | - David Sydow
- Zoology III Department of Animal Ecology and Tropical Biology, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Maria Schauer
- Museum für Naturkunde – Leibniz Institute for Evolution and Biodiversity Science, Invalidenstraße 43, 10115 Berlin, Germany
| | - Joseph Doumbia
- ONG EnviSud Guinée, Quartier Kipé T2 commune de Ratoma, 530 BP 558 Conakry, Guinea
| | - Thomas Schmitt
- Zoology III Department of Animal Ecology and Tropical Biology, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Mark-Oliver Rödel
- Museum für Naturkunde – Leibniz Institute for Evolution and Biodiversity Science, Invalidenstraße 43, 10115 Berlin, Germany
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16
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Ziqubu K, Dludla PV, Mabhida SE, Jack BU, Keipert S, Jastroch M, Mazibuko-Mbeje SE. Brown adipose tissue-derived metabolites and their role in regulating metabolism. Metabolism 2024; 150:155709. [PMID: 37866810 DOI: 10.1016/j.metabol.2023.155709] [Citation(s) in RCA: 1] [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: 04/04/2023] [Revised: 09/28/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
The discovery and rejuvenation of metabolically active brown adipose tissue (BAT) in adult humans have offered a new approach to treat obesity and metabolic diseases. Beyond its accomplished role in adaptive thermogenesis, BAT secretes signaling molecules known as "batokines", which are instrumental in regulating whole-body metabolism via autocrine, paracrine, and endocrine action. In addition to the intrinsic BAT metabolite-oxidizing activity, the endocrine functions of these molecules may help to explain the association between BAT activity and a healthy systemic metabolic profile. Herein, we review the evidence that underscores the significance of BAT-derived metabolites, especially highlighting their role in controlling physiological and metabolic processes involving thermogenesis, substrate metabolism, and other essential biological processes. The conversation extends to their capacity to enhance energy expenditure and mitigate features of obesity and its related metabolic complications. Thus, metabolites derived from BAT may provide new avenues for the discovery of metabolic health-promoting drugs with far-reaching impacts. This review aims to dissect the complexities of the secretory role of BAT in modulating local and systemic metabolism in metabolic health and disease.
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Affiliation(s)
- Khanyisani Ziqubu
- Department of Biochemistry, North-West University, Mmabatho 2745, South Africa
| | - Phiwayinkosi V Dludla
- Cochrane South Africa, South African Medical Research Council, Tygerberg 7505, South Africa; Department of Biochemistry and Microbiology, Faculty of Science and Agriculture, University of Zululand, KwaDlangezwa 3886, South Africa
| | - Sihle E Mabhida
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Babalwa U Jack
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Susanne Keipert
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Martin Jastroch
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE-106 91 Stockholm, Sweden
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17
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Katano S, Yano T, Kouzu H, Nagaoka R, Numazawa R, Yamano K, Fujisawa Y, Ohori K, Nagano N, Fujito T, Nishikawa R, Ohwada W, Katayose M, Sato T, Kuno A, Furuhashi M. Circulating level of β-aminoisobutyric acid (BAIBA), a novel myokine-like molecule, is inversely associated with fat mass in patients with heart failure. Heart Vessels 2024; 39:35-47. [PMID: 37661199 DOI: 10.1007/s00380-023-02308-y] [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: 05/01/2023] [Accepted: 08/16/2023] [Indexed: 09/05/2023]
Abstract
Results of experimental studies have shown that β-aminoisobutyric acid (BAIBA), an exercise-induced myokine-like molecule, is an endogenous negative regulator of fat mass in mice, but it remains unclear whether that is the case in humans, though an enhanced BAIBA concentration in patients receiving sodium-glucose cotransporter 2 inhibitors was found in our recent study. The objective of this study was to analyze the determinants of circulating BAIBA concentration in humans, with focus on the possible link between circulating BAIBA and body composition including fat mass. Data for 188 consecutive patients with heart failure (HF, 64 ± 13 years; 70% male) who received a dual energy X ray absorptiometry (DEXA) scan for assessment of body composition including fat mass index (FMI) and appendicular skeletal muscle mass index (ASMI) were used in this study. Plasma BAIBA concentration in a fasting state after stabilization of HF was determined using ultraperformance liquid chromatography. Plasma BAIBA was detected in 66% of the patients. In simple linear regression analyses of data from patients in whom plasma BAIBA was detected, plasma BAIBA concentration was positively correlated with uric acid and was negatively correlated with body mass index (BMI), estimated glomerular filtration rate (eGFR), FMI, and % body fat. There were no correlations between plasma BAIBA concentration and indexes of muscle mass and bone mass. The results of multiple linear regression analyses showed that FMI and % body fat in addition to BMI, but not ASMI, were independent explanatory factors for plasma BAIBA concentration. In conclusion, plasma BAIBA concentration is inversely correlated with indexes of fat mass, indicating that BAIBA may be a therapeutic target for excessive fat accumulation.
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Affiliation(s)
- Satoshi Katano
- Division of Rehabilitation, Sapporo Medical University Hospital, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Toshiyuki Yano
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan.
| | - Hidemichi Kouzu
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Ryohei Nagaoka
- Division of Rehabilitation, Sapporo Medical University Hospital, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Ryo Numazawa
- Division of Rehabilitation, Sapporo Medical University Hospital, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
- Graduate School of Medicine, Sapporo Medical University, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Kotaro Yamano
- Division of Rehabilitation, Sapporo Medical University Hospital, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Yusuke Fujisawa
- Department of Rehabilitation, Japanese Red Cross Asahikawa Hospital, 1-1-1-1, Akebono, Asahikawa, 070-8530, Japan
| | - Katsuhiko Ohori
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
- Department of Cardiology, Hokkaido Cardiovascular Hospital, 1-30, South-27, West-13, Chuo-ku, Sapporo, 064-0927, Japan
| | - Nobutaka Nagano
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Takefumi Fujito
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Ryo Nishikawa
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Wataru Ohwada
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Masaki Katayose
- Second Division of Physical Therapy, Sapporo Medical University School of Health Sciences, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Tatsuya Sato
- Department of Cellular Physiology and Signal Transduction, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Atsushi Kuno
- Department of Pharmacology, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Masato Furuhashi
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
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18
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Smith HR, Roberts LD, Witte KK. It's a Matter of Fat: The Obesity Paradox in Heart Failure. Am J Cardiol 2023; 209:247-249. [PMID: 37884267 DOI: 10.1016/j.amjcard.2023.09.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 10/28/2023]
Affiliation(s)
- Hannah R Smith
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine University of Leeds, Leeds, United Kingdom
| | - Lee D Roberts
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine University of Leeds, Leeds, United Kingdom.
| | - Klaus K Witte
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine University of Leeds, Leeds, United Kingdom; Medical Clinic 1, University Hospital of Aachen, RWTH Aachen University, Aachen, Germany.
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19
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Tarry-Adkins JL, Robinson IG, Pantaleão LC, Armstrong JL, Thackray BD, Holzner LMW, Knapton AE, Virtue S, Jenkins B, Koulman A, Murray AJ, Ozanne SE, Aiken CE. The metabolic response of human trophoblasts derived from term placentas to metformin. Diabetologia 2023; 66:2320-2331. [PMID: 37670017 PMCID: PMC10627909 DOI: 10.1007/s00125-023-05996-3] [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: 04/17/2023] [Accepted: 07/18/2023] [Indexed: 09/07/2023]
Abstract
AIMS/HYPOTHESIS Metformin is increasingly used therapeutically during pregnancy worldwide, particularly in the treatment of gestational diabetes, which affects a substantial proportion of pregnant women globally. However, the impact on placental metabolism remains unclear. In view of the association between metformin use in pregnancy and decreased birthweight, it is essential to understand how metformin modulates the bioenergetic and anabolic functions of the placenta. METHODS A cohort of 55 placentas delivered by elective Caesarean section at term was collected from consenting participants. Trophoblasts were isolated from the placental samples and treated in vitro with clinically relevant doses of metformin (0.01 mmol/l or 0.1 mmol/l) or vehicle. Respiratory function was assayed using high-resolution respirometry to measure oxygen concentration and calculated [Formula: see text]. Glycolytic rate and glycolytic stress assays were performed using Agilent Seahorse XF assays. Fatty acid uptake and oxidation measurements were conducted using radioisotope-labelled assays. Lipidomic analysis was conducted using LC-MS. Gene expression and protein analysis were performed using RT-PCR and western blotting, respectively. RESULTS Complex I-supported oxidative phosphorylation was lower in metformin-treated trophoblasts (0.01 mmol/l metformin, 61.7% of control, p<0.05; 0.1 mmol/l metformin, 43.1% of control, p<0.001). The proton efflux rate arising from glycolysis under physiological conditions was increased following metformin treatment, up to 23±5% above control conditions following treatment with 0.1 mmol/l metformin (p<0.01). There was a significant increase in triglyceride concentrations in trophoblasts treated with 0.1 mmol/l metformin (p<0.05), particularly those of esters of long-chain polyunsaturated fatty acids. Fatty acid oxidation was reduced by ~50% in trophoblasts treated with 0.1 mmol/l metformin compared with controls (p<0.001), with no difference in uptake between treatment groups. CONCLUSIONS/INTERPRETATION In primary trophoblasts derived from term placentas metformin treatment caused a reduction in oxidative phosphorylation through partial inactivation of complex I and potentially by other mechanisms. Metformin-treated trophoblasts accumulate lipids, particularly long- and very-long-chain polyunsaturated fatty acids. Our findings raise clinically important questions about the balance of risk of metformin use during pregnancy, particularly in situations where the benefits are not clear-cut and alternative therapies are available.
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Affiliation(s)
- Jane L Tarry-Adkins
- Department of Obstetrics and Gynaecology, the Rosie Hospital and NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - India G Robinson
- Department of Obstetrics and Gynaecology, the Rosie Hospital and NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Lucas C Pantaleão
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Jenna L Armstrong
- Department of Physiology, Neuroscience and Development, University of Cambridge, Cambridge, UK
| | - Benjamin D Thackray
- Department of Physiology, Neuroscience and Development, University of Cambridge, Cambridge, UK
| | - Lorenz M W Holzner
- Department of Physiology, Neuroscience and Development, University of Cambridge, Cambridge, UK
| | - Alice E Knapton
- Department of Physiology, Neuroscience and Development, University of Cambridge, Cambridge, UK
| | - Sam Virtue
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Benjamin Jenkins
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Albert Koulman
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Andrew J Murray
- Department of Physiology, Neuroscience and Development, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Susan E Ozanne
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Catherine E Aiken
- Department of Obstetrics and Gynaecology, the Rosie Hospital and NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK.
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK.
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
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20
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Ando Y, Odawara E, Sakai H, Sato F, Kamei J. Placental extract suppresses lipid droplet accumulation by autophagy during the differentiation of adipose-derived mesenchymal stromal/stem cells into mature adipocytes. BMC Res Notes 2023; 16:338. [PMID: 37974253 PMCID: PMC10655368 DOI: 10.1186/s13104-023-06622-6] [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: 04/26/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023] Open
Abstract
OBJECTIVE Placental extract, which contains various bioactive compounds, has been used as traditional medicine. Many studies have demonstrated additional applications of placental extract and provided a scientific basis for the broad spectrum of its effects. We have previously reported that porcine placental extract (PPE) strongly suppresses adipogenesis in a 3T3-L1 preadipocyte cell line, inhibiting differentiation. This study aimed to examine the effect of PPE on the accumulation of lipid droplets (LD) in adipose-derived mesenchymal stromal/stem cells (ASC). RESULTS The study findings revealed that PPE decreased the size of LD during the differentiation of ASC into mature adipocytes. RT-qPCR analysis revealed that PPE increased the gene expression of lysosomal acid lipase A (Lipa), a lipolysis-related gene, in ASC-differentiated adipocytes. However, no differences were noted in the adipocyte differentiation markers (Pparg, Cebpa, and Adipoq), or the adipogenesis-related genes (Dgat1, Dgat2, Fasn, Soat1, and Soat2). In addition, PPE promoted autophagosome formation, which was partially co-localized with the LD, indicating that PPE accelerated the degradation of LD by inducing autophagy (termed lipophagy) during the differentiation of ASC into mature adipocytes. These results suggest that the use of PPE may be a potential novel treatment for regulating adipogenesis for the treatment of obesity.
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Affiliation(s)
- Yusuke Ando
- Laboratory of Clinical Pathology, School of Pharmacy, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, 350-0295, Saitama, Japan
| | - Eri Odawara
- Laboratory for Bioanalysis and Onco-Pharmaceutics, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Hiroyasu Sakai
- Department of Biomolecular Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 1428501, Japan
| | - Fumiaki Sato
- Laboratory for Bioanalysis and Onco-Pharmaceutics, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan.
| | - Junzo Kamei
- Juntendo Advanced Research Institute for Health Science, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
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21
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Bornstein MR, Neinast MD, Zeng X, Chu Q, Axsom J, Thorsheim C, Li K, Blair MC, Rabinowitz JD, Arany Z. Comprehensive quantification of metabolic flux during acute cold stress in mice. Cell Metab 2023; 35:2077-2092.e6. [PMID: 37802078 PMCID: PMC10840821 DOI: 10.1016/j.cmet.2023.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 07/14/2023] [Accepted: 09/11/2023] [Indexed: 10/08/2023]
Abstract
Cold-induced thermogenesis (CIT) is widely studied as a potential avenue to treat obesity, but a thorough understanding of the metabolic changes driving CIT is lacking. Here, we present a comprehensive and quantitative analysis of the metabolic response to acute cold exposure, leveraging metabolomic profiling and minimally perturbative isotope tracing studies in unanesthetized mice. During cold exposure, brown adipose tissue (BAT) primarily fueled the tricarboxylic acid (TCA) cycle with fat in fasted mice and glucose in fed mice, underscoring BAT's metabolic flexibility. BAT minimally used branched-chain amino acids or ketones, which were instead avidly consumed by muscle during cold exposure. Surprisingly, isotopic labeling analyses revealed that BAT uses glucose largely for TCA anaplerosis via pyruvate carboxylation. Finally, we find that cold-induced hepatic gluconeogenesis is critical for CIT during fasting, demonstrating a key functional role for glucose metabolism. Together, these findings provide a detailed map of the metabolic rewiring driving acute CIT.
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Affiliation(s)
- Marc R Bornstein
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael D Neinast
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA
| | - Xianfeng Zeng
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA
| | - Qingwei Chu
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jessie Axsom
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Chelsea Thorsheim
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kristina Li
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Megan C Blair
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joshua D Rabinowitz
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA
| | - Zoltan Arany
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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22
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Matsumoto A, Matsui I, Uchinomiya S, Katsuma Y, Yasuda S, Okushima H, Imai A, Yamamoto T, Ojida A, Inoue K, Isaka Y. Spatiotemporally quantitative in vivo imaging of mitochondrial fatty acid β-oxidation at cellular-level resolution in mice. Am J Physiol Endocrinol Metab 2023; 325:E552-E561. [PMID: 37729022 DOI: 10.1152/ajpendo.00147.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/22/2023] [Accepted: 09/18/2023] [Indexed: 09/22/2023]
Abstract
Mitochondrial fatty acid β-oxidation (FAO) plays a key role in energy homeostasis. Several FAO evaluation methods are currently available, but they are not necessarily suitable for capturing the dynamics of FAO in vivo at a cellular-level spatial resolution and seconds-level time resolution. FAOBlue is a coumarin-based probe that undergoes β-oxidation to produce a fluorescent substrate, 7-hydroxycoumarin-3-(N-(2-hydroxyethyl))-carboxamide (7-HC). After confirming that 7-HC could be specifically detected using multiphoton microscopy at excitation/emission wavelength = 820/415-485 nm, wild-type C57BL/6 mice were randomly divided into control, pemafibrate, fasting (24 or 72 h), and etomoxir groups. These mice received a single intravenous injection of FAOBlue. FAO activities in the liver of these mice were visualized using multiphoton microscopy at 4.2 s/frame. These approaches could visualize the difference in FAO activities between periportal and pericentral hepatocytes in the control, pemafibrate, and fasting groups. FAO velocity, which was expressed by the maximum slope of the fluorescence intensity curve, was accelerated in the pemafibrate and 72-h fasting groups both in the periportal and the pericentral hepatocytes in comparison with the control group. Our approach revealed differences in the FAO activation mode by the two stimuli, i.e., pemafibrate and fasting, with pemafibrate accelerating the time of first detection of FAO-derived fluorescence. No increase in the fluorescence was observed in etomoxir-pretreated mice, confirming that FAOBlue specifically detected FAO in vivo. Thus, FAOBlue is useful for visualizing in vivo liver FAO dynamics at the single-cell-level spatial resolution and seconds-level time resolution.NEW & NOTEWORTHY Fatty acid β-oxidation (FAO) plays a key role in energy homeostasis. Here, the authors established a strategy for visualizing FAO activity in vivo at the cellular-level spatial resolution and seconds-level time resolution in mice. Quantitative analysis revealed spatiotemporal heterogeneity in hepatic FAO dynamics. Our method is widely applicable because it is simple and uses a multiphoton microscope to observe the FAOBlue-injected mice.
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Affiliation(s)
- Ayumi Matsumoto
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Isao Matsui
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
- Transdimensional Life Imaging Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Japan
| | - Shohei Uchinomiya
- Medical Chemistry and Chemical Biology, Department of Medicinal Sciences, Graduate School of Pharmaceutical Science, Kyushu University, Fukuoka, Japan
| | - Yusuke Katsuma
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Seiichi Yasuda
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hiroki Okushima
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Atsuhiro Imai
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takeshi Yamamoto
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Akio Ojida
- Medical Chemistry and Chemical Biology, Department of Medicinal Sciences, Graduate School of Pharmaceutical Science, Kyushu University, Fukuoka, Japan
| | - Kazunori Inoue
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
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23
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Ortiz GU, de Freitas EC. Physical activity and batokines. Am J Physiol Endocrinol Metab 2023; 325:E610-E620. [PMID: 37819193 DOI: 10.1152/ajpendo.00160.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/28/2023] [Accepted: 10/02/2023] [Indexed: 10/13/2023]
Abstract
Brown and beige adipose tissue share similar functionality, being both tissues specialized in producing heat through nonshivering thermogenesis and also playing endocrine roles through the release of their secretion factors called batokines. This review elucidates the influence of physical exercise, and myokines released in response, on the regulation of thermogenic and secretory functions of these adipose tissues and discusses the similarity of batokines actions with physical exercise in the remodeling of adipose tissue. This adipose tissue remodeling promoted by autocrine and paracrine batokines or physical exercise seems to optimize its functionality associated with better health outcomes.
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Affiliation(s)
- Gabriela Ueta Ortiz
- Department of Health Sciences, Ribeirao Preto Medical School, University of São Paulo-FMRP USP, São Paulo, Brazil
| | - Ellen Cristini de Freitas
- Department of Health Sciences, Ribeirao Preto Medical School, University of São Paulo-FMRP USP, São Paulo, Brazil
- School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
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24
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Tian D, Zeng X, Gong Y, Zheng Y, Zhang J, Wu Z. HDAC1 inhibits beige adipocyte-mediated thermogenesis through histone crotonylation of Pgc1a/Ucp1. Cell Signal 2023; 111:110875. [PMID: 37640195 DOI: 10.1016/j.cellsig.2023.110875] [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: 02/27/2023] [Revised: 08/08/2023] [Accepted: 08/25/2023] [Indexed: 08/31/2023]
Abstract
Obesity, one of the most serious public health issues, is caused by the imbalance of energy intake and energy expenditure. Increasing energy expenditure via induction of adipose tissue browning has become an appealing strategy to treat obesity and associated metabolic complications. Although histone modifications have been confirmed to regulate cellular energy metabolism, the involved biochemical mechanism of thermogenesis in adipose tissue is not completely understood. Herein, we report that class I histone deacetylases (HDAC) inhibitor MS275 increased PGC1α/UCP1 protein levels in inguinal white adipose tissue (iWAT) concomitant with elevated energy expenditure, reduced obesity and ameliorated glucose tolerance compared to control littermates. H3K18cr and H3K18ac levels were elevated after MS275 treatment. MS275 also promoted the transcription of Pgc1α and Ucp1 by enhancing the enrichment of H3K18cr and H3K18ac in the Pgc1α/Ucp1 enhancer and promoter, with a notable increase in H3K18cr. Mechanistically, the deletion of Hdac1 in beige adipocyte increases H3K18cr levels in enhancers and promoters of Pgc1α and Ucp1 genes, regulated the chromosomal state, thereby affecting the transcription of Pgc1α/Ucp1. Taken together, HDAC1 inhibits beige adipocyte-mediated thermogenesis through histone crotonylation of Pgc1a/Ucp1. This finding may provide a therapeutic strategy through increasing energy expenditure in obesity and related metabolic disorders.
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Affiliation(s)
- Dingyuan Tian
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China; Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin 300134, China
| | - Xiaojiao Zeng
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China; Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin 300134, China
| | - Yihui Gong
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China; Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin 300134, China
| | - Yin Zheng
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China; Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong 250021, China
| | - Jun Zhang
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China; Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong 250021, China
| | - Zhongming Wu
- NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China; Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University, Tianjin 300134, China; Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China; Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong 250021, China.
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25
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Khaledian B, Thibes L, Shimono Y. Adipocyte regulation of cancer stem cells. Cancer Sci 2023; 114:4134-4144. [PMID: 37622414 PMCID: PMC10637066 DOI: 10.1111/cas.15940] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/08/2023] [Accepted: 08/13/2023] [Indexed: 08/26/2023] Open
Abstract
Cancer stem cells (CSCs) are a highly tumorigenic subpopulation of the cancer cells within a tumor that drive tumor initiation, progression, and therapy resistance. In general, stem cell niche provides a specific microenvironment in which stem cells are present in an undifferentiated and self-renewable state. CSC niche is a specialized tumor microenvironment for CSCs which provides cues for their maintenance and propagation. However, molecular mechanisms for the CSC-niche interaction remain to be elucidated. We have revealed that adipsin (complement factor D) and its downstream effector hepatocyte growth factor are secreted from adipocytes and enhance the CSC properties in breast cancers in which tumor initiation and progression are constantly associated with the surrounding adipose tissue. Considering that obesity, characterized by excess adipose tissue, is associated with an increased risk of multiple cancers, it is reasonably speculated that adipocyte-CSC interaction is similarly involved in many types of cancers, such as pancreas, colorectal, and ovarian cancers. In this review, various molecular mechanisms by which adipocytes regulate CSCs, including secretion of adipokines, extracellular matrix production, biosynthesis of estrogen, metabolism, and exosome, are discussed. Uncovering the roles of adipocytes in the CSC niche will propose novel strategies to treat cancers, especially those whose progression is linked to obesity.
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Affiliation(s)
- Behnoush Khaledian
- Department of BiochemistryFujita Health University School of MedicineToyoakeAichiJapan
| | - Lisa Thibes
- Department of BiochemistryFujita Health University School of MedicineToyoakeAichiJapan
| | - Yohei Shimono
- Department of BiochemistryFujita Health University School of MedicineToyoakeAichiJapan
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26
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Mazitova AM, Márquez-Sánchez AC, Koltsova EK. Fat and inflammation: adipocyte-myeloid cell crosstalk in atherosclerosis. Front Immunol 2023; 14:1238664. [PMID: 37781401 PMCID: PMC10540690 DOI: 10.3389/fimmu.2023.1238664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/21/2023] [Indexed: 10/03/2023] Open
Abstract
Adipose tissue inflammation has been implicated in various chronic inflammatory diseases and cancer. Perivascular adipose tissue (PVAT) surrounds the aorta as an extra layer and was suggested to contribute to atherosclerosis development. PVAT regulates the function of endothelial and vascular smooth muscle cells in the aorta and represent a reservoir for various immune cells which may participate in aortic inflammation. Recent studies demonstrate that adipocytes also express various cytokine receptors and, therefore, may directly respond to inflammatory stimuli. Here we will summarize current knowledge on immune mechanisms regulating adipocyte activation and the crosstalk between myeloid cells and adipocytes in pathogenesis of atherosclerosis.
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Affiliation(s)
- Aleksandra M. Mazitova
- Cedars-Sinai Cancer, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Cardiology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Ana Cristina Márquez-Sánchez
- Cedars-Sinai Cancer, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Cardiology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Ekaterina K. Koltsova
- Cedars-Sinai Cancer, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Cardiology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
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27
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Tang S, Li R, Ma W, Lian L, Gao J, Cao Y, Gan L. Cardiac-to-adipose axis in metabolic homeostasis and diseases: special instructions from the heart. Cell Biosci 2023; 13:161. [PMID: 37667400 PMCID: PMC10476430 DOI: 10.1186/s13578-023-01097-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 07/30/2023] [Indexed: 09/06/2023] Open
Abstract
Adipose tissue is essential for maintaining systemic metabolic homeostasis through traditional metabolic regulation, endocrine crosstalk, and extracellular vesicle production. Adipose dysfunction is a risk factor for cardiovascular diseases. The heart is a traditional pump organ. However, it has recently been recognized to coordinate interorgan cross-talk by providing peripheral signals known as cardiokines. These molecules include specific peptides, proteins, microRNAs and novel extracellular vesicle-carried cargoes. Current studies have shown that generalized cardiokine-mediated adipose regulation affects systemic metabolism. Cardiokines regulate lipolysis, adipogenesis, energy expenditure, thermogenesis during cold exposure and adipokine production. Moreover, cardiokines participate in pathological processes such as obesity, diabetes and ischemic heart injury. The underlying mechanisms of the cardiac-to-adipose axis mediated by cardiokines will be further discussed to provide potential therapeutic targets for metabolic diseases and support a new perspective on the need to correct adipose dysfunction after ischemic heart injury.
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Affiliation(s)
- Songling Tang
- Department of Emergency Medicine and Laboratory of Emergency Medicine, West China Hospital, West China School of Medicine, Sichuan University Chengdu, Chengdu, 610041, People's Republic of China
| | - Ruixin Li
- Department of Emergency Medicine and Laboratory of Emergency Medicine, West China Hospital, West China School of Medicine, Sichuan University Chengdu, Chengdu, 610041, People's Republic of China
| | - Wen Ma
- Sichuan University-The Hong Kong Polytechnic University Institute for Disaster Management and Reconstruction, Chengdu, China
| | - Liu Lian
- Department of Emergency Medicine and Laboratory of Emergency Medicine, West China Hospital, West China School of Medicine, Sichuan University Chengdu, Chengdu, 610041, People's Republic of China
| | - Jiuyu Gao
- Department of Emergency Medicine and Laboratory of Emergency Medicine, West China Hospital, West China School of Medicine, Sichuan University Chengdu, Chengdu, 610041, People's Republic of China
| | - Yu Cao
- Department of Emergency Medicine and Laboratory of Emergency Medicine, West China Hospital, West China School of Medicine, Sichuan University Chengdu, Chengdu, 610041, People's Republic of China.
- Sichuan University-The Hong Kong Polytechnic University Institute for Disaster Management and Reconstruction, Chengdu, China.
| | - Lu Gan
- Department of Emergency Medicine and Laboratory of Emergency Medicine, West China Hospital, West China School of Medicine, Sichuan University Chengdu, Chengdu, 610041, People's Republic of China.
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de Lange P, Lombardi A, Silvestri E, Cioffi F, Giacco A, Iervolino S, Petito G, Senese R, Lanni A, Moreno M. Physiological Approaches Targeting Cellular and Mitochondrial Pathways Underlying Adipose Organ Senescence. Int J Mol Sci 2023; 24:11676. [PMID: 37511435 PMCID: PMC10380998 DOI: 10.3390/ijms241411676] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/02/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
The adipose organ is involved in many metabolic functions, ranging from the production of endocrine factors to the regulation of thermogenic processes. Aging is a natural process that affects the physiology of the adipose organ, leading to metabolic disorders, thus strongly impacting healthy aging. Cellular senescence modifies many functional aspects of adipose tissue, leading to metabolic alterations through defective adipogenesis, inflammation, and aberrant adipocytokine production, and in turn, it triggers systemic inflammation and senescence, as well as insulin resistance in metabolically active tissues, leading to premature declined physiological features. In the various aging fat depots, senescence involves a multiplicity of cell types, including mature adipocytes and immune, endothelial, and progenitor cells that are aging, highlighting their involvement in the loss of metabolic flexibility, one of the common features of aging-related metabolic disorders. Since mitochondrial stress represents a key trigger of cellular senescence, and senescence leads to the accumulation of abnormal mitochondria with impaired dynamics and hindered homeostasis, this review focuses on the beneficial potential of targeting mitochondria, so that strategies can be developed to manage adipose tissue senescence for the treatment of age-related metabolic disorders.
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Affiliation(s)
- Pieter de Lange
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Università degli Studi della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81130 Caserta, Italy
| | - Assunta Lombardi
- Dipartimento di Biologia, Università degli Studi di Napoli "Federico II", Monte Sant'Angelo, Via Cinthia 4, 80126 Naples, Italy
| | - Elena Silvestri
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, via De Sanctis snc, 82100 Benevento, Italy
| | - Federica Cioffi
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, via De Sanctis snc, 82100 Benevento, Italy
| | - Antonia Giacco
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, via De Sanctis snc, 82100 Benevento, Italy
| | - Stefania Iervolino
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, via De Sanctis snc, 82100 Benevento, Italy
| | - Giuseppe Petito
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Università degli Studi della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81130 Caserta, Italy
| | - Rosalba Senese
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Università degli Studi della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81130 Caserta, Italy
| | - Antonia Lanni
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Università degli Studi della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81130 Caserta, Italy
| | - Maria Moreno
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, via De Sanctis snc, 82100 Benevento, Italy
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Valenzuela PL, Carrera-Bastos P, Castillo-García A, Lieberman DE, Santos-Lozano A, Lucia A. Obesity and the risk of cardiometabolic diseases. Nat Rev Cardiol 2023; 20:475-494. [PMID: 36927772 DOI: 10.1038/s41569-023-00847-5] [Citation(s) in RCA: 59] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/08/2023] [Indexed: 03/18/2023]
Abstract
The prevalence of obesity has reached pandemic proportions, and now approximately 25% of adults in Westernized countries have obesity. Recognized as a major health concern, obesity is associated with multiple comorbidities, particularly cardiometabolic disorders. In this Review, we present obesity as an evolutionarily novel condition, summarize the epidemiological evidence on its detrimental cardiometabolic consequences and discuss the major mechanisms involved in the association between obesity and the risk of cardiometabolic diseases. We also examine the role of potential moderators of this association, with evidence for and against the so-called 'metabolically healthy obesity phenotype', the 'fatness but fitness' paradox or the 'obesity paradox'. Although maintenance of optimal cardiometabolic status should be a primary goal in individuals with obesity, losing body weight and, particularly, excess visceral adiposity seems to be necessary to minimize the risk of cardiometabolic diseases.
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Affiliation(s)
- Pedro L Valenzuela
- Physical Activity and Health Research Group (PaHerg), Research Institute of Hospital 12 de Octubre ("i + 12"), Madrid, Spain.
- Department of Systems Biology, University of Alcalá, Alcalá de Henares, Spain.
| | - Pedro Carrera-Bastos
- Center for Primary Health Care Research, Department of Clinical Sciences, Lund University, Malmö, Sweden
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | | | - Daniel E Lieberman
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
| | - Alejandro Santos-Lozano
- Physical Activity and Health Research Group (PaHerg), Research Institute of Hospital 12 de Octubre ("i + 12"), Madrid, Spain
- Department of Health Sciences, European University Miguel de Cervantes, Valladolid, Spain
| | - Alejandro Lucia
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain.
- CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain.
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Tarantini S, Subramanian M, Butcher JT, Yabluchanskiy A, Li X, Miller RA, Balasubramanian P. Revisiting adipose thermogenesis for delaying aging and age-related diseases: Opportunities and challenges. Ageing Res Rev 2023; 87:101912. [PMID: 36924940 PMCID: PMC10164698 DOI: 10.1016/j.arr.2023.101912] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/03/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
Adipose tissue undergoes significant changes in structure, composition, and function with age including altered adipokine secretion, decreased adipogenesis, altered immune cell profile and increased inflammation. Considering the role of adipose tissue in whole-body energy homeostasis, age-related dysfunction in adipose metabolism could potentially contribute to an increased risk for metabolic diseases and accelerate the onset of other age-related diseases. Increasing cellular energy expenditure in adipose tissue, also referred to as thermogenesis, has emerged as a promising strategy to improve adipose metabolism and treat obesity-related metabolic disorders. However, translating this strategy to the aged population comes with several challenges such as decreased thermogenic response and the paucity of safe pharmacological agents to activate thermogenesis. This mini-review aims to discuss the current body of knowledge on aging and thermogenesis and highlight the unexplored opportunities (cellular mechanisms and secreted factors) to target thermogenic mechanisms for delaying aging and age-related diseases. Finally, we also discuss the emerging role of thermogenic adipocytes in healthspan and lifespan extension.
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Affiliation(s)
- Stefano Tarantini
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Health Promotion Sciences, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; The Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Madhan Subramanian
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, USA
| | - Joshua T Butcher
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, USA
| | - Andriy Yabluchanskiy
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Department of Health Promotion Sciences, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; The Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Xinna Li
- Department of Pathology and Geriatrics Center, University of Michigan, Ann Arbor, MI, USA
| | - Richard A Miller
- Department of Pathology and Geriatrics Center, University of Michigan, Ann Arbor, MI, USA
| | - Priya Balasubramanian
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; The Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
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31
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Xiao L, De Jesus DF, Ju CW, Wei JB, Hu J, DiStefano-Forti A, Tsuji T, Cero C, Männistö V, Manninen SM, Wei S, Ijaduola O, Blüher M, Cypess AM, Pihlajamäki J, Tseng YH, He C, Kulkarni RN. m 6 A mRNA Methylation in Brown Adipose Tissue Regulates Systemic Insulin Sensitivity via an Inter-Organ Prostaglandin Signaling Axis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.26.542169. [PMID: 37292780 PMCID: PMC10245942 DOI: 10.1101/2023.05.26.542169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Brown adipose tissue (BAT) has the capacity to regulate systemic metabolism through the secretion of signaling lipids. N6-methyladenosine (m 6 A) is the most prevalent and abundant post-transcriptional mRNA modification and has been reported to regulate BAT adipogenesis and energy expenditure. In this study, we demonstrate that the absence of m 6 A methyltransferase-like 14 (METTL14), modifies the BAT secretome to initiate inter-organ communication to improve systemic insulin sensitivity. Importantly, these phenotypes are independent of UCP1-mediated energy expenditure and thermogenesis. Using lipidomics, we identified prostaglandin E2 (PGE2) and prostaglandin F2a (PGF2a) as M14 KO -BAT-secreted insulin sensitizers. Notably, circulatory PGE2 and PGF2a levels are inversely correlated with insulin sensitivity in humans. Furthermore, in vivo administration of PGE2 and PGF2a in high-fat diet-induced insulin-resistant obese mice recapitulates the phenotypes of METTL14 deficient animals. PGE2 or PGF2a improves insulin signaling by suppressing the expression of specific AKT phosphatases. Mechanistically, METTL14-mediated m 6 A installation promotes decay of transcripts encoding prostaglandin synthases and their regulators in human and mouse brown adipocytes in a YTHDF2/3-dependent manner. Taken together, these findings reveal a novel biological mechanism through which m 6 A-dependent regulation of BAT secretome regulates systemic insulin sensitivity in mice and humans. Highlights Mettl14 KO -BAT improves systemic insulin sensitivity via inter-organ communication; PGE2 and PGF2a are BAT-secreted insulin sensitizers and browning inducers;PGE2 and PGF2a sensitize insulin responses through PGE2-EP-pAKT and PGF2a-FP-AKT axis; METTL14-mediated m 6 A installation selectively destabilizes prostaglandin synthases and their regulator transcripts; Targeting METTL14 in BAT has therapeutic potential to enhance systemic insulin sensitivity. Abstract Figure
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Wang P, Ma J, Li W, Wang Q, Xiao Y, Jiang Y, Gu X, Wu Y, Dong S, Guo H, Li M. Profiling the metabolome of uterine fluid for early detection of ovarian cancer. Cell Rep Med 2023:101061. [PMID: 37267943 DOI: 10.1016/j.xcrm.2023.101061] [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: 09/15/2022] [Revised: 03/28/2023] [Accepted: 05/08/2023] [Indexed: 06/04/2023]
Abstract
Ovarian cancer (OC) causes high mortality in women because of ineffective biomarkers for early diagnosis. Here, we perform metabolomics analysis on an initial training set of uterine fluid from 96 gynecological patients. A seven-metabolite-marker panel consisting of vanillylmandelic acid, norepinephrine, phenylalanine, beta-alanine, tyrosine, 12-S-hydroxy-5,8,10-heptadecatrienoic acid, and crithmumdiol is established for detecting early-stage OC. The panel is further validated in an independent sample set from 123 patients, discriminating early OC from controls with an area under the curve (AUC) of 0.957 (95% confidence interval [CI], 0.894-1). Interestingly, we find elevated norepinephrine and decreased vanillylmandelic acid in most OC cells, resulting from excess 4-hydroxyestradiol that antagonizes the catabolism of norepinephrine by catechol-O-methyltransferase. Moreover, exposure to 4-hydroxyestradiol induces cellular DNA damage and genomic instability that could lead to tumorigenesis. Thus, this study not only reveals metabolic features in uterine fluid of gynecological patients but also establishes a noninvasive approach for the early diagnosis of OC.
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Affiliation(s)
- Pan Wang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, China; Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing 100191, China
| | - Jihong Ma
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, China; Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing 100191, China
| | - Wenjing Li
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, China; Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing 100191, China
| | - Qilong Wang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China; Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yinan Xiao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, China; Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing 100191, China
| | - Yuening Jiang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, China; Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing 100191, China
| | - Xiaoyang Gu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, China; Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing 100191, China
| | - Yu Wu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, China; Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing 100191, China
| | - Suwei Dong
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China; Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Hongyan Guo
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, China; Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing 100191, China.
| | - Mo Li
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, China; Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing 100191, China.
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Jin Z, Meng W, Xiao T, Deng J, Wang J, Wen J, Chen K, Wang L, Liu J, Li Q, He J, Wang Z, Liu W, Liu F. Vertical sleeve gastrectomy-derived gut metabolite licoricidin activates beige fat thermogenesis to combat obesity. Theranostics 2023; 13:3103-3116. [PMID: 37284437 PMCID: PMC10240825 DOI: 10.7150/thno.81893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/17/2023] [Indexed: 06/08/2023] Open
Abstract
Obesity is a chronic metabolic disease, affecting individuals throughout the world. Bariatric surgery such as vertical sleeve gastrectomy (VSG) provides sustained weight loss and improves glucose homeostasis in obese mice and humans. However, the precise underlying mechanisms remain elusive. In this study, we investigated the potential roles and the mechanisms of action of gut metabolites in VSG-induced anti-obesity effect and metabolic improvement. Methods: High-fat diet (HFD)-fed C57BL/6J mice were subjected to VSG. Energy dissipation in mice was monitored using metabolic cage experiments. The effects of VSG on gut microbiota and metabolites were determined by 16S rRNA sequencing and metabolomics, respectively. The metabolic beneficial effects of the identified gut metabolites were examined in mice by both oral administration and fat pad injection of the metabolites. Results: VSG in mice greatly increased thermogenic gene expression in beige fat, which was correlated with increased energy expenditure. VSG reshaped gut microbiota composition, resulting in elevated levels of gut metabolites including licoricidin. Licoricidin treatment promoted thermogenic gene expression in beige fat by activating the Adrb3-cAMP-PKA signaling pathway, leading to reduced body weight gain in HFD-fed mice. Conclusions: We identify licoricidin, which mediates the crosstalk between gut and adipose tissue in mice, as a VSG-provoked anti-obesity metabolite. Identification of anti-obesity small molecules should provide new insights into treatment options for obesity and its associated metabolic diseases.
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Affiliation(s)
- Zhangliu Jin
- Department of General Surgery, Division of Biliopancreatic and Metabolic Surgery, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Wen Meng
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Ting Xiao
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
- Department of Hepatology, Hunan Children's Hospital, Changsha 410000, Hunan, China
| | - Jiangming Deng
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Jing Wang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Jie Wen
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Kai Chen
- Department of General Surgery, Division of Biliopancreatic and Metabolic Surgery, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Liwen Wang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Juanhong Liu
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Qingxin Li
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Jieyu He
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Zheng Wang
- College of Bioscience & Biotechnology of Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Wei Liu
- Department of General Surgery, Division of Biliopancreatic and Metabolic Surgery, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Feng Liu
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Cardiometabolic Medicine of Hunan Province, and Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
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Tang D, Quan C, Huang S, Wei F. Integrating LC-MS and HS-GC-MS for the metabolite characterization of the Chinese medicinal plant Platostoma palustre under different processing methods. Front Nutr 2023; 10:1181942. [PMID: 37275652 PMCID: PMC10235517 DOI: 10.3389/fnut.2023.1181942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 04/18/2023] [Indexed: 06/07/2023] Open
Abstract
Platostoma palustre (or Mesona chinensis Benth) is an important medicinal and edible plant in China and Southeast Asian countries. To study the effects of different processing methods on the quality, nutrition, and flavor of P. palustre, we adopted the LC-MS and HS-GC-MS to compare the influences of tedding (S), sweating (M), and drying (H) on the metabolites and volatile substances of P. palustre. Biochemical determinations revealed that the M treatment could promote the accumulation of the contents of total sugar, soluble sugar, and total pectin compared with the H and S treatments but decrease the total flavonoid contents. LC-MS and HS-GC-MS uncovered 98 differential metabolites and 27 differential volatile substances among the three treatments, respectively. Overall, the M treatment facilitated the stabilization and improvement of the quality of polysaccharides and volatile substances, while the H treatment could promote the level of amino acids in P. palustre. The current study provided a theoretical reference for establishing standardized processing methods and sustaining the quality stability of P. palustre in future.
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Affiliation(s)
- Danfeng Tang
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- National Traditional Chinese Medicine Inheritance and Innovation Center, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Changqian Quan
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- National Traditional Chinese Medicine Inheritance and Innovation Center, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Suhua Huang
- College of Pharmacy, Guangxi Medical University, Nanning, China
| | - Fan Wei
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- National Traditional Chinese Medicine Inheritance and Innovation Center, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
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35
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Wu R, Park J, Qian Y, Shi Z, Hu R, Yuan Y, Xiong S, Wang Z, Yan G, Ong SG, Song Q, Song Z, Mahmoud AM, Xu P, He C, Arpke RW, Kyba M, Shu G, Jiang Q, Jiang Y. Genetically prolonged beige fat in male mice confers long-lasting metabolic health. Nat Commun 2023; 14:2731. [PMID: 37169793 PMCID: PMC10175245 DOI: 10.1038/s41467-023-38471-z] [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: 01/24/2023] [Accepted: 05/04/2023] [Indexed: 05/13/2023] Open
Abstract
A potential therapeutic target to curb obesity and diabetes is thermogenic beige adipocytes. However, beige adipocytes quickly transition into white adipocytes upon removing stimuli. Here, we define the critical role of cyclin dependent kinase inhibitor 2A (Cdkn2a) as a molecular pedal for the beige-to-white transition. Beige adipocytes lacking Cdkn2a exhibit prolonged lifespan, and male mice confer long-term metabolic protection from diet-induced obesity, along with enhanced energy expenditure and improved glucose tolerance. Mechanistically, Cdkn2a promotes the expression and activity of beclin 1 (BECN1) by directly binding to its mRNA and its negative regulator BCL2 like 1 (BCL2L1), activating autophagy and accelerating the beige-to-white transition. Reactivating autophagy by pharmacological or genetic methods abolishes beige adipocyte maintenance induced by Cdkn2a ablation. Furthermore, hyperactive BECN1 alone accelerates the beige-to-white transition in mice and human. Notably, both Cdkn2a and Becn1 exhibit striking positive correlations with adiposity. Hence, blocking Cdkn2a-mediated BECN1 activity holds therapeutic potential to sustain beige adipocytes in treating obesity and related metabolic diseases.
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Affiliation(s)
- Ruifan Wu
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation and National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Jooman Park
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Yanyu Qian
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Zuoxiao Shi
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Ruoci Hu
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Yexian Yuan
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation and National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Shaolei Xiong
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Zilai Wang
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Gege Yan
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Sang-Ging Ong
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
- Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Qing Song
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Zhenyuan Song
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Abeer M Mahmoud
- Division of Endocrinology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Pingwen Xu
- Division of Endocrinology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Congcong He
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Robert W Arpke
- Lillehei Heart Institute, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Michael Kyba
- Lillehei Heart Institute, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Gang Shu
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation and National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Qingyan Jiang
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation and National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yuwei Jiang
- Department of Physiology and Biophysics, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA.
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, 60612, USA.
- Division of Endocrinology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, USA.
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36
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Zong Y, Wang M, Liu Y, Suo X, Fan G, Yang X. 5-HEPE reduces obesity and insulin resistance by promoting adipose tissue browning through GPR119/AMPK/PGC1α activation. Life Sci 2023; 323:121703. [PMID: 37075946 DOI: 10.1016/j.lfs.2023.121703] [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: 03/23/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/21/2023]
Abstract
AIMS Activating thermogenic program in brown adipocytes serves as a potential therapeutic target for increasing energy expenditure during the treatment of metabolic diseases. 5(S)-hydroxy-eicosapentaenoic acid (5-HEPE), an omega-3 unsaturated fatty acid metabolite, has been shown to enhance insulin secretion in vitro. However, its role in modulating obesity-related diseases remains largely unclear. MAIN METHODS To investigate this further, mice were fed with a high-fat diet for 12 weeks and then injected intraperitoneally every other day with 5-HEPE for 4 additional weeks. KEY FINDINGS In vivo, our results demonstrated that 5-HEPE alleviated the HFD-induced obesity and insulin resistance, leading to a significant decrease in subcutaneous fat and epididymal fat index and an increase in brown fat index. Compared to the HFD group, the 5-HEPE group mice had lower ITT and GTT AUC and lower HOMA-IR. Moreover, 5HEPE effectively increased energy expenditure of mice. 5-HEPE also significantly promoted brown adipose tissue (BAT) activation and browning in white adipose tissue (WAT) by up-regulating genes and proteins expression of UCP1, Prdm16, Cidea, and PGC1α. In vitro, we found 5-HEPE significantly promoted 3T3-L1 browning. Mechanistically, 5-HEPE acts by activating the GPR119/AMPK/PGC1α pathway. In conclusion, this study emphasizes a critical role of 5-HEPE in improving body energy metabolism and adipose tissue browning in HFD-fed mice. SIGNIFICANCE Our results suggest that 5-HEPE intervention may be an effective target for preventing obesity-related metabolic diseases.
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Affiliation(s)
- Yibo Zong
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Mengxuan Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yaxin Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing 210095, PR China
| | - XiaoYi Suo
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Guoqiang Fan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing 210095, PR China; Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xiaojing Yang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing 210095, PR China; Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, PR China.
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37
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Dreher SI, Irmler M, Pivovarova-Ramich O, Kessler K, Jürchott K, Sticht C, Fritsche L, Schneeweiss P, Machann J, Pfeiffer AFH, Hrabě de Angelis M, Beckers J, Birkenfeld AL, Peter A, Niess AM, Weigert C, Moller A. Acute and long-term exercise adaptation of adipose tissue and skeletal muscle in humans: a matched transcriptomics approach after 8-week training-intervention. Int J Obes (Lond) 2023; 47:313-324. [PMID: 36774413 PMCID: PMC10113153 DOI: 10.1038/s41366-023-01271-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 01/31/2023] [Accepted: 01/31/2023] [Indexed: 02/13/2023]
Abstract
BACKGROUND Exercise exerts many health benefits by directly inducing molecular alterations in physically utilized skeletal muscle. Molecular adaptations of subcutaneous adipose tissue (SCAT) might also contribute to the prevention of metabolic diseases. AIM To characterize the response of human SCAT based on changes in transcripts and mitochondrial respiration to acute and repeated bouts of exercise in comparison to skeletal muscle. METHODS Sedentary participants (27 ± 4 yrs) with overweight or obesity underwent 8-week supervised endurance exercise 3×1h/week at 80% VO2peak. Before, 60 min after the first and last exercise bout and 5 days post intervention, biopsies were taken for transcriptomic analyses and high-resolution respirometry (n = 14, 8 female/6 male). RESULTS In SCAT, we found 37 acutely regulated transcripts (FC > 1.2, FDR < 10%) after the first exercise bout compared to 394, respectively, in skeletal muscle. Regulation of only 5 transcripts overlapped between tissues highlighting their differential response. Upstream and enrichment analyses revealed reduced transcripts of lipid uptake, storage and lipogenesis directly after exercise in SCAT and point to β-adrenergic regulation as potential major driver. The data also suggest an exercise-induced modulation of the circadian clock in SCAT. Neither term was associated with transcriptomic changes in skeletal muscle. No evidence for beigeing/browning was found in SCAT along with unchanged respiration. CONCLUSIONS Adipose tissue responds completely distinct from adaptations of skeletal muscle to exercise. The acute and repeated reduction in transcripts of lipid storage and lipogenesis, interconnected with a modulated circadian rhythm, can counteract metabolic syndrome progression toward diabetes.
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Affiliation(s)
- Simon I Dreher
- Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, 72076, Tübingen, Germany
| | - Martin Irmler
- Institute of Experimental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany
| | - Olga Pivovarova-Ramich
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558, Nuthetal, Potsdam, Germany
- Research Group Molecular Nutritional Medicine, German Institute of Human Nutrition Potsdam-Rehbruecke, 14558, Nuthetal, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, 12203, Berlin, Germany
| | - Katharina Kessler
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558, Nuthetal, Potsdam, Germany
| | - Karsten Jürchott
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), 13353, Berlin, Germany
| | - Carsten Sticht
- Next Generation Sequencing Core Facility, Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany
| | - Louise Fritsche
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
| | - Patrick Schneeweiss
- Sports Medicine, University Hospital Tübingen, 72076, Tübingen, Germany
- Interfaculty Research Institute for Sport and Physical Activity, University of Tübingen, Tübingen, Germany
| | - Jürgen Machann
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
- Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, 72076, Tübingen, Germany
| | - Andreas F H Pfeiffer
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558, Nuthetal, Potsdam, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, 12203, Berlin, Germany
| | - Martin Hrabě de Angelis
- Institute of Experimental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Chair of Experimental Genetics, Technical University of Munich, 85354, Freising, Germany
| | - Johannes Beckers
- Institute of Experimental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Chair of Experimental Genetics, Technical University of Munich, 85354, Freising, Germany
| | - Andreas L Birkenfeld
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
- Department of Internal Medicine IV, University Hospital Tübingen, 72076, Tübingen, Germany
| | - Andreas Peter
- Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, 72076, Tübingen, Germany
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
| | - Andreas M Niess
- Sports Medicine, University Hospital Tübingen, 72076, Tübingen, Germany
- Interfaculty Research Institute for Sport and Physical Activity, University of Tübingen, Tübingen, Germany
| | - Cora Weigert
- Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, 72076, Tübingen, Germany.
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany.
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany.
| | - Anja Moller
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
- Department of Internal Medicine IV, University Hospital Tübingen, 72076, Tübingen, Germany
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38
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Qiu S, Cai Y, Yao H, Lin C, Xie Y, Tang S, Zhang A. Small molecule metabolites: discovery of biomarkers and therapeutic targets. Signal Transduct Target Ther 2023; 8:132. [PMID: 36941259 PMCID: PMC10026263 DOI: 10.1038/s41392-023-01399-3] [Citation(s) in RCA: 74] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/22/2023] Open
Abstract
Metabolic abnormalities lead to the dysfunction of metabolic pathways and metabolite accumulation or deficiency which is well-recognized hallmarks of diseases. Metabolite signatures that have close proximity to subject's phenotypic informative dimension, are useful for predicting diagnosis and prognosis of diseases as well as monitoring treatments. The lack of early biomarkers could lead to poor diagnosis and serious outcomes. Therefore, noninvasive diagnosis and monitoring methods with high specificity and selectivity are desperately needed. Small molecule metabolites-based metabolomics has become a specialized tool for metabolic biomarker and pathway analysis, for revealing possible mechanisms of human various diseases and deciphering therapeutic potentials. It could help identify functional biomarkers related to phenotypic variation and delineate biochemical pathways changes as early indicators of pathological dysfunction and damage prior to disease development. Recently, scientists have established a large number of metabolic profiles to reveal the underlying mechanisms and metabolic networks for therapeutic target exploration in biomedicine. This review summarized the metabolic analysis on the potential value of small-molecule candidate metabolites as biomarkers with clinical events, which may lead to better diagnosis, prognosis, drug screening and treatment. We also discuss challenges that need to be addressed to fuel the next wave of breakthroughs.
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Affiliation(s)
- Shi Qiu
- International Advanced Functional Omics Platform, Scientific Experiment Center, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), College of Chinese Medicine, Hainan Medical University, Xueyuan Road 3, Haikou, 571199, China
| | - Ying Cai
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Hong Yao
- First Affiliated Hospital, Harbin Medical University, Harbin, 150081, China
| | - Chunsheng Lin
- Second Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150001, China
| | - Yiqiang Xie
- International Advanced Functional Omics Platform, Scientific Experiment Center, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), College of Chinese Medicine, Hainan Medical University, Xueyuan Road 3, Haikou, 571199, China.
| | - Songqi Tang
- International Advanced Functional Omics Platform, Scientific Experiment Center, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), College of Chinese Medicine, Hainan Medical University, Xueyuan Road 3, Haikou, 571199, China.
| | - Aihua Zhang
- International Advanced Functional Omics Platform, Scientific Experiment Center, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), College of Chinese Medicine, Hainan Medical University, Xueyuan Road 3, Haikou, 571199, China.
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin, 150040, China.
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Abstract
Brown adipose tissue (BAT) displays the unique capacity to generate heat through uncoupled oxidative phosphorylation that makes it a very attractive therapeutic target for cardiometabolic diseases. Here, we review BAT cellular metabolism, its regulation by the central nervous and endocrine systems and circulating metabolites, the plausible roles of this tissue in human thermoregulation, energy balance, and cardiometabolic disorders, and the current knowledge on its pharmacological stimulation in humans. The current definition and measurement of BAT in human studies relies almost exclusively on BAT glucose uptake from positron emission tomography with 18F-fluorodeoxiglucose, which can be dissociated from BAT thermogenic activity, as for example in insulin-resistant states. The most important energy substrate for BAT thermogenesis is its intracellular fatty acid content mobilized from sympathetic stimulation of intracellular triglyceride lipolysis. This lipolytic BAT response is intertwined with that of white adipose (WAT) and other metabolic tissues, and cannot be independently stimulated with the drugs tested thus far. BAT is an interesting and biologically plausible target that has yet to be fully and selectively activated to increase the body's thermogenic response and shift energy balance. The field of human BAT research is in need of methods able to directly, specifically, and reliably measure BAT thermogenic capacity while also tracking the related thermogenic responses in WAT and other tissues. Until this is achieved, uncertainty will remain about the role played by this fascinating tissue in human cardiometabolic diseases.
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Affiliation(s)
- André C Carpentier
- Correspondence: André C. Carpentier, MD, Division of Endocrinology, Faculty of Medicine, University of Sherbrooke, 3001, 12th Ave N, Sherbrooke, Quebec, J1H 5N4, Canada.
| | - Denis P Blondin
- Division of Neurology, Department of Medicine, Centre de recherche du Centre hospitalier universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Quebec, J1H 5N4, Canada
| | | | - Denis Richard
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec City, Quebec, G1V 4G5, Canada
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Aldamarany W, Taocui H, Liling D, Wanfu Y, Zhong G. Oral Supplementation with Three Vegetable Oils Differing in Fatty Acid Composition Alleviates High-Fat Diet-Induced Obesity in Mice by Regulating Inflammation and Lipid Metabolism. POL J FOOD NUTR SCI 2023. [DOI: 10.31883/pjfns/160186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
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Abstract
The circadian clock is a cell-autonomous transcription-translation feedback mechanism that anticipates and adapts physiology and behavior to different phases of the day. A variety of factors including hormones, temperature, food-intake, and exercise can act on tissue-specific peripheral clocks to alter the expression of genes that influence metabolism, all in a time-of-day dependent manner. The aim of this study was to elucidate the effects of exercise timing on adipose tissue metabolism. We performed RNA sequencing on inguinal adipose tissue of mice immediately following maximal exercise or sham treatment at the early rest or early active phase. Only during the early active phase did exercise elicit an immediate increase in serum nonesterified fatty acids. Furthermore, early active phase exercise increased expression of markers of thermogenesis and mitochondrial proliferation in inguinal adipose tissue. In vitro, synchronized 3T3-L1 adipocytes showed a timing-dependent difference in Adrb2 expression, as well as a greater lipolytic activity. Thus, the response of adipose tissue to exercise is time-of-day sensitive and may be partly driven by the circadian clock. To determine the influence of feeding state on the time-of-day response to exercise, we replicated the experiment in 10-h-fasted early rest phase mice to mimic the early active phase metabolic status. A 10-h fast led to a similar lipolytic response as observed after active phase exercise but did not replicate the transcriptomic response, suggesting that the observed changes in gene expression are not driven by feeding status. In conclusion, acute exercise elicits timing-specific effects on adipose tissue to maintain metabolic homeostasis.
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42
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Dong K, Wei G, Sun H, Gu D, Liu J, Wang L. Metabolic crosstalk between thermogenic adipocyte and cancer cell: Dysfunction and therapeutics. Curr Opin Pharmacol 2023; 68:102322. [PMID: 36502545 DOI: 10.1016/j.coph.2022.102322] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 10/19/2022] [Accepted: 11/08/2022] [Indexed: 12/13/2022]
Abstract
As one of the largest endocrine organs with a wide distribution in organisms, adipose tissue secretes multiple adipokines, cytokines, metabolites, and exosomes to promote tumour development. Elaborating the crosstalk between cancer cells and adipocytes provides a tissue-level perspective of cancer progression, which reflects the heterogeneity and complexity of human tumours. Three main types of adipose tissues, white, brown, and beige adipose tissue, have been described. Thermogenic capacity is a prominent characteristic of brown and beige adipocytes. Most studies so far mainly focus on the contribution of white adipocytes to the tumour microenvironment. However, the role of thermogenic adipose tissue in malignant cancer behaviour has been largely overlooked. Recently, emerging evidence suggests that beige/brown adipocytes play a key role in the development and progression of various cancers. This review focuses on the bidirectional communication between tumour cells and thermogenic adipocytes and the therapeutic strategies to disrupt this interaction.
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Affiliation(s)
- Kai Dong
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Gang Wei
- Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Department of Endocrinology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Honglin Sun
- Department of Endocrinology, Beijing Chao-yang Hospital, Capital Medical University, Beijing 100020, China
| | - Di Gu
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Junli Liu
- Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China.
| | - Linhui Wang
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai 200433, China.
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Ziqubu K, Mazibuko-Mbeje SE, Mthembu SXH, Mabhida SE, Jack BU, Nyambuya TM, Nkambule BB, Basson AK, Tiano L, Dludla PV. Anti-Obesity Effects of Metformin: A Scoping Review Evaluating the Feasibility of Brown Adipose Tissue as a Therapeutic Target. Int J Mol Sci 2023; 24:ijms24032227. [PMID: 36768561 PMCID: PMC9917329 DOI: 10.3390/ijms24032227] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/24/2023] Open
Abstract
Brown adipose tissue (BAT) is increasingly recognized as the major therapeutic target to promote energy expenditure and ameliorate diverse metabolic complications. There is a general interest in understanding the pleiotropic effects of metformin against metabolic complications. Major electronic databases and search engines such as PubMed/MEDLINE, Google Scholar, and the Cochrane library were used to retrieve and critically discuss evidence reporting on the impact of metformin on regulating BAT thermogenic activity to ameliorate complications linked with obesity. The summarized evidence suggests that metformin can reduce body weight, enhance insulin sensitivity, and improve glucose metabolism by promoting BAT thermogenic activity in preclinical models of obesity. Notably, this anti-diabetic agent can affect the expression of major thermogenic transcriptional factors such as uncoupling protein 1 (UCP1), nuclear respiratory factor 1 (NRF1), and peroxisome-proliferator-activated receptor gamma coactivator 1-alpha (PGC1-α) to improve BAT mitochondrial function and promote energy expenditure. Interestingly, vital molecular markers involved in glucose metabolism and energy regulation such as AMP-activated protein kinase (AMPK) and fibroblast growth factor 21 (FGF21) are similarly upregulated by metformin treatment in preclinical models of obesity. The current review also discusses the clinical relevance of BAT and thermogenesis as therapeutic targets. This review explored critical components including effective dosage and appropriate intervention period, consistent with the beneficial effects of metformin against obesity-associated complications.
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Affiliation(s)
- Khanyisani Ziqubu
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
- Department of Biochemistry, North-West University, Mmabatho 2745, South Africa
| | - Sithandiwe E. Mazibuko-Mbeje
- Department of Biochemistry, North-West University, Mmabatho 2745, South Africa
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy
- Correspondence: (S.E.M.-M.); (P.V.D.); Tel.: +27-21-938-0333 (P.V.D.)
| | - Sinenhlanhla X. H. Mthembu
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
- Department of Biochemistry, North-West University, Mmabatho 2745, South Africa
| | - Sihle E. Mabhida
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Babalwa U. Jack
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Tawanda M. Nyambuya
- Department of Health Sciences, Namibia University of Science and Technology, Windhoek 9000, Namibia
| | - Bongani B. Nkambule
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Albertus K. Basson
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa 3880, South Africa
| | - Luca Tiano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy
| | - Phiwayinkosi V. Dludla
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa 3880, South Africa
- Correspondence: (S.E.M.-M.); (P.V.D.); Tel.: +27-21-938-0333 (P.V.D.)
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Saito M, Okamatsu-Ogura Y. Thermogenic Brown Fat in Humans: Implications in Energy Homeostasis, Obesity and Metabolic Disorders. World J Mens Health 2023:41.e26. [PMID: 36792089 DOI: 10.5534/wjmh.220224] [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: 10/12/2022] [Accepted: 11/08/2022] [Indexed: 01/27/2023] Open
Abstract
In mammals including humans, there are two types of adipose tissue, white and brown adipose tissues (BATs). White adipose tissue is the primary site of energy storage, while BAT is a specialized tissue for non-shivering thermogenesis to dissipate energy as heat. Although BAT research has long been limited mostly in small rodents, the rediscovery of metabolically active BAT in adult humans has dramatically promoted the translational studies on BAT in health and diseases. It is now established that BAT, through its thermogenic and energy dissipating activities, plays a role in the regulation of body temperature, whole-body energy expenditure, and body fatness. Moreover, increasing evidence has demonstrated that BAT secretes various paracrine and endocrine factors, which influence other peripheral tissues and control systemic metabolic homeostasis, suggesting BAT as a metabolic regulator, other than for thermogenesis. In fact, clinical studies have revealed an association of BAT not only with metabolic disorders such as insulin resistance, diabetes, dyslipidemia, and fatty liver, but also with cardiovascular diseases including hypertension and atherosclerosis. Thus, BAT is an intriguing tissue combating obesity and related metabolic diseases. In this review, we summarize current knowledge on human BAT, focusing its patho-physiological roles in energy homeostasis, obesity and related metabolic disorders. The effects of aging and sex on BAT are also discussed.
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Affiliation(s)
- Masayuki Saito
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
| | - Yuko Okamatsu-Ogura
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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Abstract
Traditional views of cellular metabolism imply that it is passively adapted to meet the demands of the cell. It is becoming increasingly clear, however, that metabolites do more than simply supply the substrates for biological processes; they also provide critical signals, either through effects on metabolic pathways or via modulation of other regulatory proteins. Recent investigation has also uncovered novel roles for several metabolites that expand their signalling influence to processes outside metabolism, including nutrient sensing and storage, embryonic development, cell survival and differentiation, and immune activation and cytokine secretion. Together, these studies suggest that, in contrast to the prevailing notion, the biochemistry of a cell is frequently governed by its underlying metabolism rather than vice versa. This important shift in perspective places common metabolites as key regulators of cell phenotype and behaviour. Yet the signalling metabolites, and the cognate targets and transducers through which they signal, are only beginning to be uncovered. In this Review, we discuss the emerging links between metabolism and cellular behaviour. We hope this will inspire further dissection of the mechanisms through which metabolic pathways and intermediates modulate cell function and will suggest possible drug targets for diseases linked to metabolic deregulation.
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Affiliation(s)
| | - Jared Rutter
- Department of Biochemistry, University of Utah, Salt Lake City, UT, USA. .,Howard Hughes Medical Institute, University of Utah School of Medicine, Salt Lake City, UT, USA. .,Diabetes & Metabolism Research Center, University of Utah, Salt Lake City, UT, USA.
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46
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Zhang K, Li T, Li Q, Nie C, Sun Y, Xue L, Wang Y, Fan M, Qian H, Li Y, Wang L. 5-Heptadecylresorcinol Regulates the Metabolism of Thermogenic Fat and Improves the Thermogenic Capacity of Aging Mice via a Sirtuin 3-Adenosine Monophosphate-Activated Protein Kinase Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:557-568. [PMID: 36535764 DOI: 10.1021/acs.jafc.2c07073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
5-Heptadecylresorcinol (AR-C17), a well-known biomarker for whole grain rye consumption, is a primary homolog of alkylresorcinols. In this study, the effects of AR-C17 on the thermogenesis of brown adipocytes and 3T3-L1 adipocytes were investigated. The results showed that AR-C17 increased sirtuin 3 (Sirt3) expression, and the expressions of specific thermogenic genes in adipocytes were increased. Furthermore, AR-C17 increased the mitochondrial functions during the thermogenic activation of adipocytes. In in vivo study, AR-C17 increased the cold tolerance and thermogenic capacity of adipose tissues in aging mice. In addition, Sirt3 activity was required for AR-C17-induced thermogenesis. Meanwhile, AR-C17 increased adenosine monophosphate-activated protein kinase (AMPK) phosphorylation, and AMPK was involved in the regulation of AR-C17 on thermogenic adipocytes. Mechanically, AR-C17 upregulated a Sirt3-AMPK positive-feedback loop in adipocytes and further increased the expression of uncoupling protein 1 to activate thermogenesis. This study indicated that AR-C17 could be a promising thermogenic activator of adipocytes to alleviate obesity and aging-associated metabolic diseases.
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Affiliation(s)
- Kuiliang Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Tingting Li
- Department of Food Science and Engineering, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qiang Li
- China National Institute of Standardization, Beijing 100015, China
| | - Chenzhipeng Nie
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yujie Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Lamei Xue
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yu Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Mingcong Fan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Haifeng Qian
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yan Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Li Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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MacCannell AD, Roberts LD. Metabokines in the regulation of systemic energy metabolism. Curr Opin Pharmacol 2022; 67:102286. [PMID: 36137304 DOI: 10.1016/j.coph.2022.102286] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 07/05/2022] [Accepted: 08/01/2022] [Indexed: 01/25/2023]
Abstract
Metabolism consists of life-sustaining chemical reactions involving metabolites. Historically, metabolites were defined as the intermediates or end products of metabolism and considered to be passive participants changed by metabolic processes. However, recent research has redefined how we view metabolism. There is emerging evidence of metabolites which function to mediate cellular signalling and interorgan crosstalk, regulating local metabolism and systemic physiology. These bioactive metabolite signals have been termed metabokines. Metabokines regulate diverse energy metabolism pathways across multiple tissues, including fatty acid β-oxidation, mitochondrial oxidative phosphorylation, lipolysis, glycolysis and gluconeogenesis. There is increasing impetus to uncover novel metabokine signalling axes to better understand how these may be perturbed in metabolic diseases and determine their utility as therapeutic targets.
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Affiliation(s)
- Amanda Dv MacCannell
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Lee D Roberts
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK.
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Scalabrin M, Engman V, Maccannell A, Critchlow A, Roberts LD, Yuldasheva N, Bowen TS. Temporal analysis of skeletal muscle remodeling post hindlimb ischemia reveals intricate autophagy regulation. Am J Physiol Cell Physiol 2022; 323:C1601-C1610. [PMID: 36252128 PMCID: PMC9722248 DOI: 10.1152/ajpcell.00174.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hind limb ischemia (HLI) is the most severe form of peripheral arterial disease, associated with a substantial reduction of limb blood flow that impairs skeletal muscle homeostasis to promote functional disability. The molecular regulators of HLI-induced muscle perturbations remain poorly defined. This study investigated whether changes in the molecular catabolic-autophagy signaling network were linked to temporal remodeling of skeletal muscle in HLI. HLI was induced in mice via hindlimb ischemia (femoral artery ligation) and confirmed by Doppler echocardiography. Experiments were terminated at time points defined as early- (7 days; n = 5) or late- (28 days; n = 5) stage HLI. Ischemic and nonischemic (contralateral) limb muscles were compared. Ischemic versus nonischemic muscles demonstrated overt remodeling at early-HLI but normalized at late-HLI. Early-onset fiber atrophy was associated with excessive autophagy signaling in ischemic muscle; protein expression increased for Beclin-1, LC3, and p62 (P < 0.05) but proteasome-dependent markers were reduced (P < 0.05). Mitophagy signaling increased in early-stage HLI that aligned with an early and sustained loss of mitochondrial content (P < 0.05). Upstream autophagy regulators, Sestrins, showed divergent responses during early-stage HLI (Sestrin2 increased while Sestrin1 decreased; P < 0.05) in parallel to increased AMP-activated protein kinase (AMPK) phosphorylation (P < 0.05) and lower antioxidant enzyme expression. No changes were found in markers for mechanistic target of rapamycin complex 1 signaling. These data indicate that early activation of the sestrin-AMPK signaling axis may regulate autophagy to stimulate rapid and overt muscle atrophy in HLI, which is normalized within weeks and accompanied by recovery of muscle mass. A complex interplay between Sestrins to regulate autophagy signaling during early-to-late muscle remodeling in HLI is likely.
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Affiliation(s)
- Mattia Scalabrin
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Viktor Engman
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Amanda Maccannell
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Annabel Critchlow
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Lee D Roberts
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Nadira Yuldasheva
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - T Scott Bowen
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
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Bryant C, Webb A, Banks AS, Chandler D, Govindarajan R, Agrawal S. Alternatively Spliced Landscape of PPARγ mRNA in Podocytes Is Distinct from Adipose Tissue. Cells 2022; 11:cells11213455. [PMID: 36359851 PMCID: PMC9653906 DOI: 10.3390/cells11213455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/13/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
Podocytes are highly differentiated epithelial cells, and their structural and functional integrity is compromised in a majority of glomerular and renal diseases, leading to proteinuria, chronic kidney disease, and kidney failure. Traditional agonists (e.g., pioglitazone) and selective modulators (e.g., GQ-16) of peroxisome-proliferator-activated-receptor-γ (PPARγ) reduce proteinuria in animal models of glomerular disease and protect podocytes from injury via PPARγ activation. This indicates a pivotal role for PPARγ in maintaining glomerular function through preservation of podocytes distinct from its well-understood role in driving insulin sensitivity and adipogenesis. While its transcriptional role in activating adipokines and adipogenic genes is well-established in adipose tissue, liver and muscle, understanding of podocyte PPARγ signaling remains limited. We performed a comprehensive analysis of PPARγ mRNA variants due to alternative splicing, in human podocytes and compared with adipose tissue. We found that podocytes express the ubiquitous PPARγ Var 1 (encoding γ1) and not Var2 (encoding γ2), which is mostly restricted to adipose tissue and liver. Additionally, we detected expression at very low level of Var4, and barely detectable levels of other variants, Var3, Var11, VartORF4 and Var9, in podocytes. Furthermore, a distinct podocyte vs. adipocyte PPAR-promoter-response-element containing gene expression, enrichment and pathway signature was observed, suggesting differential regulation by podocyte specific PPARγ1 variant, distinct from the adipocyte-specific γ2 variant. In summary, podocytes and glomeruli express several PPARγ variants, including Var1 (γ1) and excluding adipocyte-specific Var2 (γ2), which may have implications in podocyte specific signaling and pathophysiology. This suggests that that new selective PPARγ modulators can be potentially developed that will be able to distinguish between the two forms, γ1 and γ2, thus forming a basis of novel targeted therapeutic avenues.
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Affiliation(s)
- Claire Bryant
- Center for Clinical and Translational Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH 43205, USA
| | - Amy Webb
- Department of Bioinformatics, The Ohio State University, Columbus, OH 43210, USA
| | - Alexander S. Banks
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Dawn Chandler
- Center for Childhood Cancer and Blood Disease, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH 43205, USA
- Department of Pediatrics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Rajgopal Govindarajan
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
- Translational Therapeutics, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Shipra Agrawal
- Center for Clinical and Translational Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH 43205, USA
- Department of Pediatrics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- Division of Nephrology and Hypertension, Department of Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
- Correspondence:
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50
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Narasimhan A, Flores RR, Camell CD, Bernlohr DA, Robbins PD, Niedernhofer LJ. Cellular Senescence in Obesity and Associated Complications: a New Therapeutic Target. Curr Diab Rep 2022; 22:537-548. [PMID: 36239841 PMCID: PMC10123542 DOI: 10.1007/s11892-022-01493-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/11/2022] [Indexed: 01/13/2023]
Abstract
PURPOSE OF REVIEW Obesity has increased worldwide recently and represents a major global health challenge. This review focuses on the obesity-associated cellular senescence in various organs and the role of these senescent cells (SnCs) in driving complications associated with obesity. Also, the ability to target SnCs pharmacologically with drugs termed senotherapeutics as a therapy for these complications is discussed. RECENT FINDINGS Several studies have shown a positive correlation between obesity and SnC burden in organs such as adipose tissue, liver, and pancreatic-β-cells. These SnCs produce several secretory factors which affect other cells and tissues in a paracrine manner resulting in organ dysfunction. The accumulation of SnCs in adipocytes affects their lipid storage and impairs adipogenesis. The inflammatory senescence-associated secretory phenotype (SASP) of SnCs downregulates the antioxidant capacity and mitochondrial function in tissues. Senescent hepatocytes cannot oxidize fatty acids, which leads to lipid deposition and senescence in β-cells decrease function. These and other adverse effects of SnCs contribute to insulin resistance and type-2 diabetes. The reduction in the SnC burden genetically or pharmacologically improves the complications associated with obesity. The accumulation of SnCs with age and disease accelerates aging. Obesity is a key driver of SnC accumulation, and the complications associated with obesity can be controlled by reducing the SnC burden. Thus, senotherapeutic drugs have the potential to be an effective therapeutic option.
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Affiliation(s)
- Akilavalli Narasimhan
- Institute On the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 6-155 Jackson Hall, 321 Church Street, SE, Minneapolis, MN, 55455, USA
| | - Rafael R Flores
- Institute On the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 6-155 Jackson Hall, 321 Church Street, SE, Minneapolis, MN, 55455, USA
| | - Christina D Camell
- Institute On the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 6-155 Jackson Hall, 321 Church Street, SE, Minneapolis, MN, 55455, USA
| | - David A Bernlohr
- Institute On the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 6-155 Jackson Hall, 321 Church Street, SE, Minneapolis, MN, 55455, USA
| | - Paul D Robbins
- Institute On the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 6-155 Jackson Hall, 321 Church Street, SE, Minneapolis, MN, 55455, USA.
| | - Laura J Niedernhofer
- Institute On the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 6-155 Jackson Hall, 321 Church Street, SE, Minneapolis, MN, 55455, USA.
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