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Gui C, Meyer G. Transcriptional evidence for transient regulation of muscle regeneration by brown adipose transplant in the rotator cuff. J Orthop Res 2024. [PMID: 38967130 DOI: 10.1002/jor.25933] [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: 12/21/2023] [Revised: 05/20/2024] [Accepted: 06/07/2024] [Indexed: 07/06/2024]
Abstract
Chronic rotator cuff (RC) injuries can lead to a degenerative microenvironment that favors chronic inflammation, fibrosis, and fatty infiltration. Recovery of muscle structure and function will ultimately require a complex network of muscle resident cells, including satellite cells, fibro-adipogenic progenitors (FAPs), and immune cells. Recent work suggests that signaling from adipose tissue and progenitors could modulate regeneration and recovery of function, particularly promyogenic signaling from brown or beige adipose (BAT). In this study, we sought to identify cellular targets of BAT signaling during muscle regeneration using a RC BAT transplantation mouse model. Cardiotoxin injured supraspinatus muscle had improved mass at 7 days postsurgery (dps) when transplanted with exogeneous BAT. Transcriptional analysis revealed transplanted BAT modulates FAP signaling early in regeneration likely via crosstalk with immune cells. However, this conferred no long-term benefit as muscle mass and function were not improved at 28 dps. To eliminate the confounding effects of endogenous BAT, we transplanted BAT in the "BAT-free" uncoupling protein-1 diphtheria toxin fragment A (UCP1-DTA) mouse and here found improved muscle contractile function, but not mass at 28 dps. Interestingly, the transplanted BAT increased fatty infiltration in all experimental groups, implying modulation of FAP adipogenesis during regeneration. Thus, we conclude that transplanted BAT modulates FAP signaling early in regeneration, but does not grant long-term benefits.
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Affiliation(s)
- Chang Gui
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Gretchen Meyer
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
- Department of Neurology and Orthopaedic Surgery, Washington University in St. Louis, St. Louis, Missouri, USA
- Program in Physical Therapy, Washington University in St. Louis, St. Louis, Missouri, USA
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2
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Zhang Y, Zhang B, Sun X. The molecular mechanism of macrophage-adipocyte crosstalk in maintaining energy homeostasis. Front Immunol 2024; 15:1378202. [PMID: 38650945 PMCID: PMC11033412 DOI: 10.3389/fimmu.2024.1378202] [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: 01/29/2024] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
Interactions between macrophages and adipocytes in adipose tissue are critical for the regulation of energy metabolism and obesity. Macrophage polarization induced by cold or other stimulations can drive metabolic reprogramming of adipocytes, browning, and thermogenesis. Accordingly, investigating the roles of macrophages and adipocytes in the maintenance of energy homeostasis is critical for the development of novel therapeutic approaches specifically targeting macrophages in metabolic disorders such as obesity. Current review outlines macrophage polarization not only regulates the release of central nervous system and inflammatory factors, but controls mitochondrial function, and other factor that induce metabolic reprogramming of adipocytes and maintain energy homeostasis. We also emphasized on how the adipocytes conversely motivate the polarization of macrophage. Exploring the interactions between adipocytes and macrophages may provide new therapeutic strategies for the management of obesity-related metabolic diseases.
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Affiliation(s)
- Yudie Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Bin Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, China
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Ghesmati Z, Rashid M, Fayezi S, Gieseler F, Alizadeh E, Darabi M. An update on the secretory functions of brown, white, and beige adipose tissue: Towards therapeutic applications. Rev Endocr Metab Disord 2024; 25:279-308. [PMID: 38051471 PMCID: PMC10942928 DOI: 10.1007/s11154-023-09850-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/30/2023] [Indexed: 12/07/2023]
Abstract
Adipose tissue, including white adipose tissue (WAT), brown adipose tissue (BAT), and beige adipose tissue, is vital in modulating whole-body energy metabolism. While WAT primarily stores energy, BAT dissipates energy as heat for thermoregulation. Beige adipose tissue is a hybrid form of adipose tissue that shares characteristics with WAT and BAT. Dysregulation of adipose tissue metabolism is linked to various disorders, including obesity, type 2 diabetes, cardiovascular diseases, cancer, and infertility. Both brown and beige adipocytes secrete multiple molecules, such as batokines, packaged in extracellular vesicles or as soluble signaling molecules that play autocrine, paracrine, and endocrine roles. A greater understanding of the adipocyte secretome is essential for identifying novel molecular targets in treating metabolic disorders. Additionally, microRNAs show crucial roles in regulating adipose tissue differentiation and function, highlighting their potential as biomarkers for metabolic disorders. The browning of WAT has emerged as a promising therapeutic approach in treating obesity and associated metabolic disorders. Many browning agents have been identified, and nanotechnology-based drug delivery systems have been developed to enhance their efficacy. This review scrutinizes the characteristics of and differences between white, brown, and beige adipose tissues, the molecular mechanisms involved in the development of the adipocytes, the significant roles of batokines, and regulatory microRNAs active in different adipose tissues. Finally, the potential of WAT browning in treating obesity and atherosclerosis, the relationship of BAT with cancer and fertility disorders, and the crosstalk between adipose tissue with circadian system and circadian disorders are also investigated.
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Affiliation(s)
- Zeinab Ghesmati
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohsen Rashid
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shabnam Fayezi
- Department of Gynecologic Endocrinology and Fertility Disorders, Women's Hospital, Ruprecht-Karls University of Heidelberg, Heidelberg, Germany
| | - Frank Gieseler
- Division of Experimental Oncology, Department of Hematology and Oncology, University Medical Center Schleswig-Holstein, Campus Lübeck, 23538, Lübeck, Germany
| | - Effat Alizadeh
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Masoud Darabi
- Division of Experimental Oncology, Department of Hematology and Oncology, University Medical Center Schleswig-Holstein, Campus Lübeck, 23538, Lübeck, Germany.
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4
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Mendez-Gutierrez A, Aguilera CM, Cereijo R, Osuna-Prieto FJ, Martinez-Tellez B, Rico MC, Sanchez-Infantes D, Villarroya F, Ruiz JR, Sanchez-Delgado G. Cold exposure modulates potential brown adipokines in humans, but only FGF21 is associated with brown adipose tissue volume. Obesity (Silver Spring) 2024; 32:560-570. [PMID: 38247441 DOI: 10.1002/oby.23970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/27/2023] [Accepted: 11/13/2023] [Indexed: 01/23/2024]
Abstract
OBJECTIVE The study objective was to investigate the effect of cold exposure on the plasma levels of five potential human brown adipokines (chemokine ligand 14 [CXCL14], growth differentiation factor 15 [GDF15], fibroblast growth factor 21 [FGF21], interleukin 6 [IL6], and bone morphogenic protein 8b [BMP8b]) and to study whether such cold-induced effects are related to brown adipose tissue (BAT) volume, activity, or radiodensity in young humans. METHODS Plasma levels of brown adipokines were measured before and 1 h and 2 h after starting an individualized cold exposure in 30 young adults (60% women, 21.9 ± 2.3 y; 24.9 ± 5.1 kg/m2 ). BAT volume, 18 F-fluorodeoxyglucose uptake, and radiodensity were assessed by a static positron emission tomography-computerized tomography scan after cold exposure. RESULTS Cold exposure increased the concentration of CXCL14 (Δ2h = 0.58 ± 0.98 ng/mL; p = 0.007), GDF15 (Δ2h = 19.63 ± 46.2 pg/mL; p = 0.013), FGF21 (Δ2h = 33.72 ± 55.13 pg/mL; p = 0.003), and IL6 (Δ1h = 1.98 ± 3.56 pg/mL; p = 0.048) and reduced BMP8b (Δ2h = -37.12 ± 83.53 pg/mL; p = 0.022). The cold-induced increase in plasma FGF21 was positively associated with BAT volume (Δ2h: β = 0.456; R2 = 0.307; p = 0.001), but not with 18 F-fluorodeoxyglucose uptake or radiodensity. None of the changes in the other studied brown adipokines was related to BAT volume, activity, or radiodensity. CONCLUSIONS Cold exposure modulates plasma levels of several potential brown adipokines in humans, whereas only cold-induced changes in FGF21 levels are associated with BAT volume. These findings suggest that human BAT might contribute to the circulatory pool of FGF21.
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Affiliation(s)
- Andrea Mendez-Gutierrez
- Department of Biochemistry and Molecular Biology II, University of Granada, Granada, Spain
- "José Mataix Verdú" Institute of Nutrition and Food Technology (INYTA), Center of Biomedical Research, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria, Granada, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Concepcion M Aguilera
- Department of Biochemistry and Molecular Biology II, University of Granada, Granada, Spain
- "José Mataix Verdú" Institute of Nutrition and Food Technology (INYTA), Center of Biomedical Research, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria, Granada, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Rubén Cereijo
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Biochemistry and Molecular Biomedicine, Institute of Biomedicine, Sant Joan de Déu Research Institute, University of Barcelona, Barcelona, Spain
| | - Francisco J Osuna-Prieto
- Hospital Universitari Joan XXIII de Tarragona, Institut d'Investigació Sanitària Pere Virgili (IISPV), Tarragona, Spain
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Borja Martinez-Tellez
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
- Department of Education, Faculty of Education Sciences and SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería, Spain
| | - Maria C Rico
- Department of Biochemistry and Molecular Biology II, University of Granada, Granada, Spain
- "José Mataix Verdú" Institute of Nutrition and Food Technology (INYTA), Center of Biomedical Research, University of Granada, Granada, Spain
| | - David Sanchez-Infantes
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Health Sciences, Campus Alcorcón, University Rey Juan Carlos (URJC), Madrid, Spain
| | - Francesc Villarroya
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Biochemistry and Molecular Biomedicine, Institute of Biomedicine, Sant Joan de Déu Research Institute, University of Barcelona, Barcelona, Spain
| | - Jonatan R Ruiz
- Instituto de Investigación Biosanitaria, Granada, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Guillermo Sanchez-Delgado
- "José Mataix Verdú" Institute of Nutrition and Food Technology (INYTA), Center of Biomedical Research, University of Granada, Granada, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
- Department of Medicine, Division of Endocrinology, Centre de recherche du Centre Hospitalier de Sherbrooke, Université de Sherbrooke, Sherbrooke, Quebec, Canada
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5
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Castellá M, Mestres-Arenas A, Gavaldà-Navarro A, Blasco-Roset A, Quesada-López T, Romero-Carramiñana I, Giralt M, Villarroya F, Cereijo R. The splicing factor SF3B1 is involved in brown adipocyte thermogenic activation. Biochem Pharmacol 2024; 220:116014. [PMID: 38158020 DOI: 10.1016/j.bcp.2023.116014] [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: 10/31/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
The ability of alternative splicing mechanisms to control gene expression is increasingly being recognized as relevant for adipose tissue function. The expression of SF3B1, a key component of the SF3B complex directly involved in spliceosome formation, was previously reported to be significantly induced in brown adipose tissue under cold-induced thermogenic activation. Here, we identify that noradrenergic cAMP-mediated thermogenic stimulation increases SF3B1 expression in brown and beige adipocytes. We further show that pladienolide-B, a drug that binds SF3B1 to inhibit pre-mRNA splicing by targeting the SF3B complex, down-regulates key components of the thermogenic machinery (e.g., UCP1 gene expression), differentially alters the expression of alternative splicing-regulated transcripts encoding molecular actors involved in the oxidative metabolism of brown adipocytes (e.g., peroxisome proliferator-activated receptor-gamma co-activator-alpha [PGC-1α] and cytochrome oxidase subunit 7a genes), and impairs the respiratory activity of brown adipocytes. Similar alterations were found in brown adipocytes with siRNA-mediated knockdown of SF3B1 protein levels. Our findings collectively indicate that SF3B1 is a key factor in the appropriate thermogenic activation of differentiated brown adipocytes. This work exemplifies the importance of splicing processes in adaptive thermogenesis and suggests that pharmacological tools, such as pladienolide-B, may be used to modulate brown adipocyte thermogenic activity.
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Affiliation(s)
- Moisés Castellá
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona; Institut de Biomedicina de la Universitat de Barcelona (IBUB); and Institut de Recerca de Sant Joan de Déu, 08028 Barcelona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, 28029 Madrid, Spain
| | - Alberto Mestres-Arenas
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona; Institut de Biomedicina de la Universitat de Barcelona (IBUB); and Institut de Recerca de Sant Joan de Déu, 08028 Barcelona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, 28029 Madrid, Spain
| | - Aleix Gavaldà-Navarro
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona; Institut de Biomedicina de la Universitat de Barcelona (IBUB); and Institut de Recerca de Sant Joan de Déu, 08028 Barcelona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, 28029 Madrid, Spain
| | - Albert Blasco-Roset
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona; Institut de Biomedicina de la Universitat de Barcelona (IBUB); and Institut de Recerca de Sant Joan de Déu, 08028 Barcelona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, 28029 Madrid, Spain
| | - Tania Quesada-López
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona; Institut de Biomedicina de la Universitat de Barcelona (IBUB); and Institut de Recerca de Sant Joan de Déu, 08028 Barcelona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, 28029 Madrid, Spain; Institut d'Investigació Biomèdica Sant Pau (IIB-SANT PAU), and Department of Infectious Diseases, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - Inés Romero-Carramiñana
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona; Institut de Biomedicina de la Universitat de Barcelona (IBUB); and Institut de Recerca de Sant Joan de Déu, 08028 Barcelona, Spain; Departamento de Biología Molecular, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid (CSIC-UAM); Instituto de Investigación Hospital 12 de Octubre, Universidad Autónoma de Madrid; and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER) ISCIII, 28049 Madrid, Spain
| | - Marta Giralt
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona; Institut de Biomedicina de la Universitat de Barcelona (IBUB); and Institut de Recerca de Sant Joan de Déu, 08028 Barcelona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, 28029 Madrid, Spain
| | - Francesc Villarroya
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona; Institut de Biomedicina de la Universitat de Barcelona (IBUB); and Institut de Recerca de Sant Joan de Déu, 08028 Barcelona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, 28029 Madrid, Spain.
| | - Rubén Cereijo
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona; Institut de Biomedicina de la Universitat de Barcelona (IBUB); and Institut de Recerca de Sant Joan de Déu, 08028 Barcelona, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, 28029 Madrid, Spain.
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6
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Reyes J, Zhao Y, Pandya K, Yap GS. Growth differentiation factor-15 is an IFN-γ regulated mediator of infection-induced weight loss and the hepatic FGF21 response. Brain Behav Immun 2024; 116:24-33. [PMID: 38013040 DOI: 10.1016/j.bbi.2023.11.029] [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: 08/24/2023] [Revised: 11/07/2023] [Accepted: 11/23/2023] [Indexed: 11/29/2023] Open
Abstract
Infections are often accompanied by weight loss caused by alterations in host behavior and metabolism, also known as sickness behaviors. Recent studies have revealed that sickness behaviors can either promote or impede survival during infections depending on factors such as the type of infectious pathogen. Nevertheless, we have an incomplete understanding of the underlying mechanisms of sickness behaviors. Furthermore, although the host immune responses to infections have long been known to contribute to the induction of sickness behaviors, recent studies have identified emerging cytokines that are also key regulators of host metabolism during infection and inflammation, such as growth differentiation factor 15 (GDF-15). GDF-15 is a distant member of the TGF-β superfamily that causes weight loss by suppressing appetite and food consumption and causing emesis. These effects require activation of neurons that express the only known GDF-15 receptor, the GFRAL receptor. GDF-15 also functions in the periphery including the induction of ketogenesis and immunoregulation. Nevertheless, the functions and regulation of GDF-15 during live infections is not yet known. Murine infection with avirulent Toxoplasma gondii is an established model to understand infection-induced weight loss. Past studies have determined that acute T. gondii infection causes weight loss due to diminished food consumption and increased energy expenditure through unknown mechanisms. Additionally, our lab previously demonstrated that T. gondii causes upregulation in serum GDF-15 in an IFN-γ-dependent manner during the post-acute phase of the infection. In this study, we interrogated the in-vivo functions and immune regulation of GDF-15 during Toxoplasma gondii infection. First, we found that in wild-type mice, acute T. gondii infection caused a significant weight loss that is preceded by elevation of serum levels of IFN-γ and GDF-15. To determine whether IFN-γ regulates GDF-15, we neutralized IFN-γ on days 5 and 6 and measured GDF-15 on day 7 and found that serum but not tissue levels of GDF-15 decreased after IFN-γ neutralization. Additionally, exogenous IFN-γ was sufficient to elevate serum GDF-15 in the absence of infection. Next, we compared the outcomes of T. gondii infection between WT and Gdf15-/- mice. We observed that the weight trajectories were declining in WT mice while they were increasing in Gdf15-/-mice during the acute phase of the infection. This difference in trajectories extended throughout the chronic infection resulting to an overall weight loss relative to initial weights in WT mice but not Gdf15-/-mice. Then, we determined that GDF-15 is not essential for survival and immunoregulation during T. gondii infection. We also demonstrated that GDF-15 is required for the induction of FGF21, stress-induced cytokine with prominent roles in regulating host metabolism. Finally, we discovered a cytokine cascade IFN-γ-GDF-15-FGF21 that is likely involved in the regulation of host metabolism. Overall, our study provides evidence that IFN-γ contributes to the regulation of host metabolism during infection by inducing GDF-15 and FGF21. GDF-15 orchestrates changes in host metabolism that supports the host immune response in clearing the infection. These physiological alterations induce FGF21, which in turn, orchestrates the adaptive responses to the effects of GDF-15, which can be detrimental when protracted.
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Affiliation(s)
- Jojo Reyes
- Department of Medicine and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103, United States
| | - Yanlin Zhao
- Department of Medicine and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103, United States
| | - Krushang Pandya
- Department of Medicine and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103, United States; Program of Bioengineering, Department of Electrical & Computer Engineering, New York Institute of Technology, United States
| | - George S Yap
- Department of Medicine and Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103, United States.
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7
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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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8
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Shen M, Zhang M, Mao N, Lin Z. Batokine in Central Nervous System Diseases. Mol Neurobiol 2023; 60:7021-7031. [PMID: 37526894 DOI: 10.1007/s12035-023-03490-w] [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: 03/28/2023] [Accepted: 07/06/2023] [Indexed: 08/02/2023]
Abstract
Brown adipose tissue (BAT) is a special type of fat tissue in mammals and is also a key endocrine organ in the human body. Batokine, the endocrine effector of BAT, plays a neuroprotective role and improves the prognosis by exerting anti-apoptotic and anti-inflammatory effects, as well as by improving vascular endothelial function and other mechanisms in nerve injury diseases. The present article briefly reviewed several types of batokines related to central nervous system (CNS) diseases. Following this, the potential therapeutic value and future research direction of batokines for CNS diseases were chiefly discussed from the aspects of protective mechanism and signaling pathway.
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Affiliation(s)
- Ming Shen
- Department of Neonatology, The Second Affiliated Hospital of Wenzhou Medical University and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
- Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China
- Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, China
- Zhejiang Provincial Clinical Research Center for Pediatric Disease, Wenzhou, Zhejiang, China
| | - Min Zhang
- Department of Neonatology, The Second Affiliated Hospital of Wenzhou Medical University and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
- Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China
- Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, China
- Zhejiang Provincial Clinical Research Center for Pediatric Disease, Wenzhou, Zhejiang, China
| | - Niping Mao
- Department of Neonatology, The Second Affiliated Hospital of Wenzhou Medical University and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
- Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China
- Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, China
- Zhejiang Provincial Clinical Research Center for Pediatric Disease, Wenzhou, Zhejiang, China
| | - Zhenlang Lin
- Department of Neonatology, The Second Affiliated Hospital of Wenzhou Medical University and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.
- Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China.
- Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, China.
- Zhejiang Provincial Clinical Research Center for Pediatric Disease, Wenzhou, Zhejiang, China.
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9
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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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10
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Escudero M, Vaysse L, Eke G, Peyrou M, Villarroya F, Bonnel S, Jeanson Y, Boyer L, Vieu C, Chaput B, Yao X, Deschaseaux F, Parny M, Raymond‐Letron I, Dani C, Carrière A, Malaquin L, Casteilla L. Scalable Generation of Pre-Vascularized and Functional Human Beige Adipose Organoids. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301499. [PMID: 37731092 PMCID: PMC10625054 DOI: 10.1002/advs.202301499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 08/07/2023] [Indexed: 09/22/2023]
Abstract
Obesity and type 2 diabetes are becoming a global sociobiomedical burden. Beige adipocytes are emerging as key inducible actors and putative relevant therapeutic targets for improving metabolic health. However, in vitro models of human beige adipose tissue are currently lacking and hinder research into this cell type and biotherapy development. Unlike traditional bottom-up engineering approaches that aim to generate building blocks, here a scalable system is proposed to generate pre-vascularized and functional human beige adipose tissue organoids using the human stromal vascular fraction of white adipose tissue as a source of adipose and endothelial progenitors. This engineered method uses a defined biomechanical and chemical environment using tumor growth factor β (TGFβ) pathway inhibition and specific gelatin methacryloyl (GelMA) embedding parameters to promote the self-organization of spheroids in GelMA hydrogel, facilitating beige adipogenesis and vascularization. The resulting vascularized organoids display key features of native beige adipose tissue including inducible Uncoupling Protein-1 (UCP1) expression, increased uncoupled mitochondrial respiration, and batokines secretion. The controlled assembly of spheroids allows to translate organoid morphogenesis to a macroscopic scale, generating vascularized centimeter-scale beige adipose micro-tissues. This approach represents a significant advancement in developing in vitro human beige adipose tissue models and facilitates broad applications ranging from basic research to biotherapies.
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Affiliation(s)
- Mélanie Escudero
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTToulouse31100France
- LAAS‐CNRSUniversité de Toulouse, CNRS, INSAToulouse31400France
| | - Laurence Vaysse
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTToulouse31100France
| | - Gozde Eke
- LAAS‐CNRSUniversité de Toulouse, CNRS, INSAToulouse31400France
| | - Marion Peyrou
- CIBER “Fisiopatologia de la Obesidad y Nutrición”, Department of Biochemistry and Molecular BiomedicineUniversity of BarcelonaMadrid28029Spain
| | - Francesc Villarroya
- CIBER “Fisiopatologia de la Obesidad y Nutrición”, Department of Biochemistry and Molecular BiomedicineUniversity of BarcelonaMadrid28029Spain
| | - Sophie Bonnel
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTToulouse31100France
| | - Yannick Jeanson
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTToulouse31100France
| | - Louisa Boyer
- LAAS‐CNRSUniversité de Toulouse, CNRS, INSAToulouse31400France
| | - Christophe Vieu
- LAAS‐CNRSUniversité de Toulouse, CNRS, INSAToulouse31400France
| | - Benoit Chaput
- Service de Chirurgie plastique, reconstructrice et esthétiqueCentre Hospitalier Universitaire RangueilToulouse31400France
| | - Xi Yao
- Faculté de MédecineUniversité Côte d'AzurINSERM, CNRS, iBVNice06103France
| | - Frédéric Deschaseaux
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTToulouse31100France
| | - Mélissa Parny
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTToulouse31100France
- LabHPEC, Histology and Pathology DepartmentUniversité de Toulouse, ENVTToulouse31076France
| | - Isabelle Raymond‐Letron
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTToulouse31100France
- LabHPEC, Histology and Pathology DepartmentUniversité de Toulouse, ENVTToulouse31076France
| | - Christian Dani
- Faculté de MédecineUniversité Côte d'AzurINSERM, CNRS, iBVNice06103France
| | - Audrey Carrière
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTToulouse31100France
| | | | - Louis Casteilla
- RESTORE Research CenterUniversité de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVTToulouse31100France
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11
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Jena J, García-Peña LM, Weatherford ET, Marti A, Bjorkman SH, Kato K, Koneru J, Chen JH, Seeley RJ, Abel ED, Pereira RO. GDF15 is required for cold-induced thermogenesis and contributes to improved systemic metabolic health following loss of OPA1 in brown adipocytes. eLife 2023; 12:e86452. [PMID: 37819027 PMCID: PMC10567111 DOI: 10.7554/elife.86452] [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: 01/31/2023] [Accepted: 09/15/2023] [Indexed: 10/13/2023] Open
Abstract
We previously reported that mice lacking the protein optic atrophy 1 (OPA1 BKO) in brown adipose tissue (BAT) display induction of the activating transcription factor 4 (ATF4), which promotes fibroblast growth factor 21 (FGF21) secretion as a batokine. FGF21 increases metabolic rates under baseline conditions but is dispensable for the resistance to diet-induced obesity (DIO) reported in OPA1 BKO mice (Pereira et al., 2021). To determine alternative mediators of this phenotype, we performed transcriptome analysis, which revealed increased levels of growth differentiation factor 15 (GDF15), along with increased protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK) levels in BAT. To investigate whether ATF4 induction was mediated by PERK and evaluate the contribution of GDF15 to the resistance to DIO, we selectively deleted PERK or GDF15 in OPA1 BKO mice. Mice with reduced OPA1 and PERK levels in BAT had preserved ISR activation. Importantly, simultaneous deletion of OPA1 and GDF15 partially reversed the resistance to DIO and abrogated the improvements in glucose tolerance. Furthermore, GDF15 was required to improve cold-induced thermogenesis in OPA1 BKO mice. Taken together, our data indicate that PERK is dispensable to induce the ISR, but GDF15 contributes to the resistance to DIO, and is required for glucose homeostasis and thermoregulation in OPA1 BKO mice by increasing energy expenditure.
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Affiliation(s)
- Jayashree Jena
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
| | - Luis Miguel García-Peña
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
| | - Eric T Weatherford
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
| | - Alex Marti
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
| | - Sarah H Bjorkman
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
| | - Kevin Kato
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
| | - Jivan Koneru
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
| | - Jason H Chen
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
| | - Randy J Seeley
- Department of Internal Medicine, University of MichiganAnn ArborUnited States
| | - E Dale Abel
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
| | - Renata O Pereira
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of IowaIowa CityUnited States
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12
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Wang J, Tan S, Gianotti L, Wu G. Evaluation and management of body composition changes in cancer patients. Nutrition 2023; 114:112132. [PMID: 37441827 DOI: 10.1016/j.nut.2023.112132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 06/06/2023] [Accepted: 06/10/2023] [Indexed: 07/15/2023]
Abstract
Wasting in cancer patients has long been recognized as a condition that adversely affects cancer patients' quality of life, treatment tolerance, and oncological outcomes. Historically, this condition was mainly evaluated by changes in body weight. However, this approach is not quite accurate because body weight is the overall change of all body compartments. Conditions such as edema and ascites can mask the severity of muscle and adipose tissue depletion. Changes in body composition assessment in cancer patients have historically been underappreciated because of the limited availability of measurement tools. As more evidence highlighting the importance of body composition has emerged, it is imperative to apply a more precise evaluation of nutritional status and a more targeted approach to provide nutritional support for cancer patients. In this review, we will discuss the modalities for evaluating body composition and how to manage body composition changes in cancer patients.
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Affiliation(s)
- Junjie Wang
- Department of General Surgery/Shanghai Clinical Nutrition Research Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shanjun Tan
- Department of General Surgery/Shanghai Clinical Nutrition Research Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Luca Gianotti
- School of Medicine and Surgery, University of Milano-Bicocca, and HBP Surgery Unit, and Foundation IRCCS San Gerardo, Monza, Italy.
| | - Guohao Wu
- Department of General Surgery/Shanghai Clinical Nutrition Research Center, Zhongshan Hospital, Fudan University, Shanghai, China.
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13
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Jena J, García-Peña LM, Pereira RO. The roles of FGF21 and GDF15 in mediating the mitochondrial integrated stress response. Front Endocrinol (Lausanne) 2023; 14:1264530. [PMID: 37818094 PMCID: PMC10561105 DOI: 10.3389/fendo.2023.1264530] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/11/2023] [Indexed: 10/12/2023] Open
Abstract
Various models of mitochondrial stress result in induction of the stress-responsive cytokines fibroblast growth factor 21 (FGF21) and growth differentiation factor 15 (GDF15). This is an adaptive mechanism downstream of the mitochondrial integrated stress response frequently associated with improvements in systemic metabolic health. Both FGF21 and GDF15 have been shown to modulate energy balance and glucose homeostasis, and their pharmacological administration leads to promising beneficial effects against obesity and associated metabolic diseases in pre-clinical models. Furthermore, endogenous upregulation of FGF21 and GDF15 is associated with resistance to diet-induced obesity (DIO), improved glucose homeostasis and increased insulin sensitivity. In this review, we highlight several studies on transgenic mouse models of mitochondrial stress and will compare the specific roles played by FGF21 and GDF15 on the systemic metabolic adaptations reported in these models.
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Affiliation(s)
| | | | - Renata O. Pereira
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, United States
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14
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Abstract
In this review, we provide a brief synopsis of the connections between adipose tissue and metabolic health and highlight some recent developments in understanding and exploiting adipocyte biology. Adipose tissue plays critical roles in the regulation of systemic glucose and lipid metabolism and secretes bioactive molecules possessing endocrine, paracrine, and autocrine functions. Dysfunctional adipose tissue has a detrimental impact on metabolic health and is intimately involved in key aspects of metabolic diseases such as insulin resistance, lipid overload, inflammation, and organelle stress. Differences in the distribution of fat depots and adipose characteristics relate to divergent degrees of metabolic dysfunction found in metabolically healthy and unhealthy obese individuals. Thermogenic adipocytes increase energy expenditure via mitochondrial uncoupling or adenosine triphosphate-consuming futile substrate cycles, while functioning as a metabolic sink and participating in crosstalk with other metabolic organs. Manipulation of adipose tissue provides a wealth of opportunities to intervene and combat the progression of associated metabolic diseases. We discuss current treatment modalities for obesity including incretin hormone analogs and touch upon emerging strategies with therapeutic potential including exosome-based therapy, pharmacological activation of brown and beige adipocyte thermogenesis, and administration or inhibition of adipocyte-derived factors.
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Affiliation(s)
- Sung-Min An
- Division of Endocrinology, Department of Internal Medicine, University of California Davis School of Medicine, Davis, CA, USA
| | - Seung-Hee Cho
- Division of Endocrinology, Department of Internal Medicine, University of California Davis School of Medicine, Davis, CA, USA
| | - John C. Yoon
- Division of Endocrinology, Department of Internal Medicine, University of California Davis School of Medicine, Davis, CA, USA
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15
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Luo J, He Z, Li Q, Lv M, Cai Y, Ke W, Niu X, Zhang Z. Adipokines in atherosclerosis: unraveling complex roles. Front Cardiovasc Med 2023; 10:1235953. [PMID: 37645520 PMCID: PMC10461402 DOI: 10.3389/fcvm.2023.1235953] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/02/2023] [Indexed: 08/31/2023] Open
Abstract
Adipokines are biologically active factors secreted by adipose tissue that act on local and distant tissues through autocrine, paracrine, and endocrine mechanisms. However, adipokines are believed to be involved in an increased risk of atherosclerosis. Classical adipokines include leptin, adiponectin, and ceramide, while newly identified adipokines include visceral adipose tissue-derived serpin, omentin, and asprosin. New evidence suggests that adipokines can play an essential role in atherosclerosis progression and regression. Here, we summarize the complex roles of various adipokines in atherosclerosis lesions. Representative protective adipokines include adiponectin and neuregulin 4; deteriorating adipokines include leptin, resistin, thrombospondin-1, and C1q/tumor necrosis factor-related protein 5; and adipokines with dual protective and deteriorating effects include C1q/tumor necrosis factor-related protein 1 and C1q/tumor necrosis factor-related protein 3; and adipose tissue-derived bioactive materials include sphingosine-1-phosphate, ceramide, and adipose tissue-derived exosomes. However, the role of a newly discovered adipokine, asprosin, in atherosclerosis remains unclear. This article reviews progress in the research on the effects of adipokines in atherosclerosis and how they may be regulated to halt its progression.
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Affiliation(s)
- Jiaying Luo
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhiwei He
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qingwen Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Mengna Lv
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yuli Cai
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wei Ke
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xuan Niu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhaohui Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
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16
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Pellegrinelli V, Figueroa-Juárez E, Samuelson I, U-Din M, Rodriguez-Fdez S, Virtue S, Leggat J, Çubuk C, Peirce VJ, Niemi T, Campbell M, Rodriguez-Cuenca S, Blázquez JD, Carobbio S, Virtanen KA, Vidal-Puig A. Defective extracellular matrix remodeling in brown adipose tissue is associated with fibro-inflammation and reduced diet-induced thermogenesis. Cell Rep 2023; 42:112640. [PMID: 37318951 DOI: 10.1016/j.celrep.2023.112640] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/25/2023] [Accepted: 05/29/2023] [Indexed: 06/17/2023] Open
Abstract
The relevance of extracellular matrix (ECM) remodeling is reported in white adipose tissue (AT) and obesity-related dysfunctions, but little is known about the importance of ECM remodeling in brown AT (BAT) function. Here, we show that a time course of high-fat diet (HFD) feeding progressively impairs diet-induced thermogenesis concomitantly with the development of fibro-inflammation in BAT. Higher markers of fibro-inflammation are associated with lower cold-induced BAT activity in humans. Similarly, when mice are housed at thermoneutrality, inactivated BAT features fibro-inflammation. We validate the pathophysiological relevance of BAT ECM remodeling in response to temperature challenges and HFD using a model of a primary defect in the collagen turnover mediated by partial ablation of the Pepd prolidase. Pepd-heterozygous mice display exacerbated dysfunction and BAT fibro-inflammation at thermoneutrality and in HFD. Our findings show the relevance of ECM remodeling in BAT activation and provide a mechanism for BAT dysfunction in obesity.
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Affiliation(s)
- Vanessa Pellegrinelli
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK.
| | - Elizabeth Figueroa-Juárez
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK
| | - Isabella Samuelson
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK
| | - Mueez U-Din
- Turku PET Centre, University of Turku, Turku, Finland; Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Sonia Rodriguez-Fdez
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK
| | - Samuel Virtue
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK
| | - Jennifer Leggat
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK
| | - Cankut Çubuk
- Platform of Computational Medicine, Fundación Progreso y Salud (FPS), Hospital Virgen Del Rocío, 41013 Sevilla, Spain
| | - Vivian J Peirce
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK
| | - Tarja Niemi
- Department of Plastic and General Surgery, Turku University Hospital, Turku, Finland
| | - Mark Campbell
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK; Cambridge University Nanjing Centre of Technology and Innovation, Nanjing, P.R. China
| | - Sergio Rodriguez-Cuenca
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK; Cambridge University Nanjing Centre of Technology and Innovation, Nanjing, P.R. China
| | - Joaquin Dopazo Blázquez
- Platform of Computational Medicine, Fundación Progreso y Salud (FPS), Hospital Virgen Del Rocío, 41013 Sevilla, Spain; Bioinformatics in RareDiseases (BiER), Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 41013 Sevilla, Spain; Computational Systems Medicine, Institute of Biomedicine of Seville (IBiS), Sevilla 41013, Spain; Functional Genomics Node (INB-ELIXIR-es), Sevilla, Spain
| | - Stefania Carobbio
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK; Centro de Investigacion Principe Felipe (CIPF), Valencia, Spain
| | - Kirsi A Virtanen
- Turku PET Centre, University of Turku, Turku, Finland; Institute of Public Health and Clinical Nutrition, University of Eastern Finland (UEF), Kuopio, Finland; Department of Endocrinology and Clinical Nutrition, Kuopio University Hospital, Kuopio, Finland
| | - Antonio Vidal-Puig
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, Cambridge, UK; Cambridge University Nanjing Centre of Technology and Innovation, Nanjing, P.R. China; Centro de Investigacion Principe Felipe (CIPF), Valencia, Spain; Cambridge Heart and Lung Research Institute, Cambridge, UK.
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17
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Al-Kuraishy HM, Al-Gareeb AI, Saad HM, Batiha GES. The potential effect of metformin on fibroblast growth factor 21 in type 2 diabetes mellitus (T2DM). Inflammopharmacology 2023:10.1007/s10787-023-01255-4. [PMID: 37337094 DOI: 10.1007/s10787-023-01255-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 03/29/2023] [Indexed: 06/21/2023]
Abstract
Fibroblast growth factor 21 (FGF21) is a peptide hormone mainly synthesized and released from the liver. FGF21 acts on FGF21 receptors (FGFRs) and β-Klotho, which is a transmembrane co-receptor. In type 2 diabetes mellitus (T2DM), inflammatory disorders stimulate the release of FGF21 to overcome insulin resistance (IR). FGF21 improves insulin sensitivity and glucose homeostasis. Metformin which is used in the management of T2DM may increase FGF21 expression. Accordingly, the objective of this review was to clarify the metformin effect on FGF21 in T2DM. FGF21 level and expression of FGF2Rs are dysregulated in T2DM due to the development of FGF21 resistance. Metformin stimulates the hepatic expression of FGF21/FGF2Rs by different signaling pathways. Besides, metformin improves the expression of β-Klotho which improves FGF21 sensitivity. In conclusion, metformin advances FGF21 signaling and decreases FGF21 resistance in T2DM, and this might be an innovative mechanism for metformin in the enhancement of glucose homeostasis and metabolic disorders in T2DM patients.
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Affiliation(s)
- Hayder M Al-Kuraishy
- Department of Pharmacology, Toxicology and Medicine, Medical Faculty, College of Medicine, Al-Mustansiriyah University, P.O. Box 14132, Baghdad, Iraq
| | - Ali I Al-Gareeb
- Department of Pharmacology, Toxicology and Medicine, Medical Faculty, College of Medicine, Al-Mustansiriyah University, P.O. Box 14132, Baghdad, Iraq
| | - Hebatallah M Saad
- Department of Pathology, Faculty of Veterinary Medicine, Matrouh University, Marsa Matruh, 51744, Egypt.
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, Egypt.
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18
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Díaz M, Carreras-Badosa G, Villarroya J, Gavaldà-Navarro A, Bassols J, de Zegher F, López-Bermejo A, Villarroya F, Ibáñez L. Circulating GDF15 concentrations in girls with low birth weight: effects of prolonged metformin treatment. Pediatr Res 2023; 93:964-968. [PMID: 35817957 DOI: 10.1038/s41390-022-02175-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 05/16/2022] [Accepted: 06/07/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Low birth weight (LBW) followed by a rapid postnatal catch-up in weight predisposes individuals to a central distribution of body fat, which is reverted by metformin. Growth-and-differentiation-factor-15 (GDF15) plays an important role in the regulation of energy homeostasis, reducing food intake and body weight. We assessed whether GDF15 concentrations are raised by long-term metformin treatment in LBW/catch-up girls with precocious pubarche (PP, pubic hair <8 years), and whether they relate to changes in endocrine-metabolic variables, body composition, and abdominal fat partitioning. METHODS Circulating GDF15 was determined in 30 LBW/catch-up girls with PP randomly assigned to receive metformin for 4 years (n = 15; 425 mg/d for 2 years, then 850 mg/d for 2 years) or to remain untreated (n = 15). Endocrine-metabolic variables, body composition (by absorptiometry), and abdominal fat partitioning (by MRI) were assessed at the start and yearly during follow-up. RESULTS Circulating GDF15 concentrations increased significantly in LBW-PP girls only after 3 and 4 years on metformin. GDF15 levels associated negatively with insulin, HOMA-IR, androgens, body fat, and visceral fat. CONCLUSION Prepubertal intervention with metformin reduces central adiposity and insulin resistance in girls with reduced prenatal growth. GDF15 could be among the mediators of such effects, especially over the long term. IMPACT Low birth weight followed by a rapid postnatal catch-up in weight predisposes individuals to a central distribution of body fat, which is reverted by metformin. Growth-and-differentiation-factor-15 (GDF15) is a peptide hormone that reduces food intake and lowers body weight; metformin is an exogenous GDF15 secretagogue. Serum GDF15 concentrations increase after 3 and 4 years on metformin and associate negatively with insulin, androgens, body fat, and visceral fat. Prepubertal intervention with metformin reduces central adiposity and insulin resistance in girls with low birth weight. GDF15 could mediate these effects, especially over the long term.
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Affiliation(s)
- Marta Díaz
- Endocrinology Department, Institut de Recerca Sant Joan de Déu, University of Barcelona, 08950 Esplugues, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, 28029, Madrid, Spain
| | - Gemma Carreras-Badosa
- Pediatric Endocrinology Research Group, Girona Institute for Biomedical Research (IDIBGI), Faculty of Medicine, University of Girona and Dr. Josep Trueta Hospital, 17007, Girona, Spain
| | - Joan Villarroya
- Endocrinology Department, Institut de Recerca Sant Joan de Déu, University of Barcelona, 08950 Esplugues, Barcelona, Spain
- Biochemistry and Molecular Biomedicine, Institute of Biomedicine, University of Barcelona and Institut de Recerca Sant Joan de Déu, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), ISCIII, 28029, Madrid, Spain
| | - Aleix Gavaldà-Navarro
- Endocrinology Department, Institut de Recerca Sant Joan de Déu, University of Barcelona, 08950 Esplugues, Barcelona, Spain
- Biochemistry and Molecular Biomedicine, Institute of Biomedicine, University of Barcelona and Institut de Recerca Sant Joan de Déu, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), ISCIII, 28029, Madrid, Spain
| | - Judit Bassols
- Pediatric Endocrinology Research Group, Girona Institute for Biomedical Research (IDIBGI), Faculty of Medicine, University of Girona and Dr. Josep Trueta Hospital, 17007, Girona, Spain
| | | | - Abel López-Bermejo
- Pediatric Endocrinology Research Group, Girona Institute for Biomedical Research (IDIBGI), Faculty of Medicine, University of Girona and Dr. Josep Trueta Hospital, 17007, Girona, Spain
| | - Francesc Villarroya
- Endocrinology Department, Institut de Recerca Sant Joan de Déu, University of Barcelona, 08950 Esplugues, Barcelona, Spain.
- Biochemistry and Molecular Biomedicine, Institute of Biomedicine, University of Barcelona and Institut de Recerca Sant Joan de Déu, Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), ISCIII, 28029, Madrid, Spain.
| | - Lourdes Ibáñez
- Endocrinology Department, Institut de Recerca Sant Joan de Déu, University of Barcelona, 08950 Esplugues, Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, 28029, Madrid, Spain.
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19
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Li C, Leng Q, Li L, Hu F, Xu Y, Gong S, Yang Y, Zhang H, Li X. Berberine Ameliorates Obesity by Inducing GDF15 Secretion by Brown Adipocytes. Endocrinology 2023; 164:7056674. [PMID: 36825874 DOI: 10.1210/endocr/bqad035] [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: 09/27/2022] [Revised: 02/03/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023]
Abstract
Berberine (BBR), which is a compound derived from the Chinese medicinal plant Coptis chinensis, promotes weight loss, but the molecular mechanisms are not well understood. Here, we show that BBR increases the serum level of growth differentiation factor 15 (GDF15), which is a stress response cytokine that can reduce food intake and lower body weight in diet-induced obese (DIO) mice. The body weight and food intake of DIO mice were decreased after BBR treatment, and the weight change was negatively correlated with the serum GDF15 level. Further studies show that BBR induced GDF15 mRNA expression and secretion in the brown adipose tissue (BAT) of DIO mice and primary mouse brown adipocytes. In addition, we found that BBR upregulates GDF15 mRNA expression and secretion by activating the integrated stress response (ISR) in primary mouse brown adipocytes. Overall, our findings show that BBR lowers body weight by inducing GDF15 secretion via the activation of the ISR in BAT.
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Affiliation(s)
- Chang Li
- Department of Endocrinology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Qingyang Leng
- Department of Endocrinology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Lihua Li
- Department of Endocrinology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Fan Hu
- Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200030, China
| | - Yuejie Xu
- Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200030, China
| | - Sa Gong
- Shanghai Songjiang District Fangta Hospital of Traditional Chinese Medicine, Shanghai 201600, China
| | - Ying Yang
- Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200030, China
| | - Hongli Zhang
- Department of Endocrinology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Xiaohua Li
- Department of Endocrinology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
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20
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Ziqubu K, Dludla PV, Moetlediwa MT, Nyawo TA, Pheiffer C, Jack BU, Nkambule B, Mazibuko-Mbeje SE. Disease progression promotes changes in adipose tissue signatures in type 2 diabetic (db/db) mice: The potential pathophysiological role of batokines. Life Sci 2023; 313:121273. [PMID: 36521548 DOI: 10.1016/j.lfs.2022.121273] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/03/2022] [Accepted: 12/04/2022] [Indexed: 12/14/2022]
Abstract
Unlike the white adipose tissue (WAT) which mainly stores excess energy as fat, brown adipose tissue (BAT) has become physiologically important and therapeutically relevant for its prominent role in regulating energy metabolism. The current study makes use of an established animal model of type 2 diabetes (T2D) db/db mice to determine the effect of the disease progression on adipose tissue morphology and gene regulatory signatures. Results showed that WAT and BAT from db/db mice display a hypertrophied phenotype that is consistent with increased expression of the pro-inflammatory cytokine, tumor necrosis factor-alpha (Tnf-α). Moreover, BAT from both db/db and non-diabetic db/+ control mice displayed an age-related impairment in glucose homeostasis, inflammatory profile, and thermogenic regulation, as demonstrated by reduced expression of genes like glucose transporter (Glut-4), adiponectin (AdipoQ), and uncoupling protein 1 (Ucp-1). Importantly, gene expression of the batokines regulating sympathetic neurite outgrowth and vascularization, including bone morphogenic protein 8b (Bmp8b), fibroblast growth factor 21 (Fgf-21), neuregulin 4 (Nrg-4) were altered in BAT from db/db mice. Likewise, gene expression of meteorin-like (Metrnl), growth differentiation factor 15 (Gdt-15), and C-X-C motif chemokine-14 (Cxcl-14) regulating pro- and anti-inflammation were altered. This data provides some new insights into the pathophysiological mechanisms involved in BAT hypertrophy (or whitening) and the disturbances of batokines during the development and progression of T2D. However, these are only preliminary results as additional experiments are necessary to confirm these findings in other experimental models of T2D.
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Affiliation(s)
- Khanyisani Ziqubu
- Department of Biochemistry, North-West University, Mmabatho 2745, South Africa
| | - Phiwayinkosi V Dludla
- Biomedical Research and Innovation Platform, 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
| | - Marakiya T Moetlediwa
- Department of Biochemistry, North-West University, Mmabatho 2745, South Africa; Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Thembeka A Nyawo
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Centre for Cardio-Metabolic Research in Africa, Division of Medical Physiology, University of Stellenbosch, Tygerberg 7505, South Africa
| | - Carmen Pheiffer
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Centre for Cardio-Metabolic Research in Africa, Division of Medical Physiology, University of Stellenbosch, Tygerberg 7505, South Africa; Department of Obstetrics and Gynaecology, Faculty of Health Science, University of Pretoria, Pretoria 0001, South Africa
| | - Babalwa U Jack
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Bongani Nkambule
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
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21
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Aguilar-Recarte D, Barroso E, Palomer X, Wahli W, Vázquez-Carrera M. Knocking on GDF15's door for the treatment of type 2 diabetes mellitus. Trends Endocrinol Metab 2022; 33:741-754. [PMID: 36151002 DOI: 10.1016/j.tem.2022.08.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 01/21/2023]
Abstract
Although a large number of drugs are available for the treatment of type 2 diabetes mellitus (T2DM), many patients do not achieve adequate disease control despite adhering to medication. Recent findings indicate that the pharmacological modulation of the stress-induced cytokine growth differentiation factor 15 (GDF15) shows promise for the treatment of T2DM. GDF15 suppresses appetite and reduces inflammation, increases thermogenesis and lipid catabolism, sustains AMP-activated protein kinase (AMPK) activity, and ameliorates insulin resistance and hepatic steatosis. In addition, circulating GDF15 levels are elevated in response to several antidiabetic drugs, including metformin, with GDF15 mediating some of their effects. Here, we review the mechanistic insights into the beneficial effects of recently explored therapeutic approaches that target GDF15 for the treatment of T2DM.
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Affiliation(s)
- David Aguilar-Recarte
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain; Institute of Biomedicine of the University of Barcelona (IBUB), Barcelona, Spain; Pediatric Research Institute-Hospital Sant Joan de Déu, Barcelona, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Avinguda Joan XXII 27-31, E-08028 Barcelona, Spain
| | - Emma Barroso
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain; Institute of Biomedicine of the University of Barcelona (IBUB), Barcelona, Spain; Pediatric Research Institute-Hospital Sant Joan de Déu, Barcelona, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Avinguda Joan XXII 27-31, E-08028 Barcelona, Spain
| | - Xavier Palomer
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain; Institute of Biomedicine of the University of Barcelona (IBUB), Barcelona, Spain; Pediatric Research Institute-Hospital Sant Joan de Déu, Barcelona, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Avinguda Joan XXII 27-31, E-08028 Barcelona, Spain
| | - Walter Wahli
- Center for Integrative Genomics, University of Lausanne, CH-1015 Lausanne, Switzerland; Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore 308232; ToxAlim (Research Center in Food Toxicology), INRAE, UMR1331, 31300 Toulouse Cedex, France
| | - Manuel Vázquez-Carrera
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain; Institute of Biomedicine of the University of Barcelona (IBUB), Barcelona, Spain; Pediatric Research Institute-Hospital Sant Joan de Déu, Barcelona, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Avinguda Joan XXII 27-31, E-08028 Barcelona, Spain.
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22
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Fiorucci S, Urbani G. GDF15 in Vascular and Liver Metabolic Disorders: A Novel Therapeutic Target. RECENT ADVANCES IN INFLAMMATION & ALLERGY DRUG DISCOVERY 2022; 16:55-59. [PMID: 36578252 DOI: 10.2174/277227081602221221113442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 11/30/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022]
Affiliation(s)
- Stefano Fiorucci
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Perugia, Perugia, Italy
| | - Ginevra Urbani
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Perugia, Perugia, Italy
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23
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Xu WD, Huang Q, Yang C, Li R, Huang AF. GDF-15: A Potential Biomarker and Therapeutic Target in Systemic Lupus Erythematosus. Front Immunol 2022; 13:926373. [PMID: 35911685 PMCID: PMC9332889 DOI: 10.3389/fimmu.2022.926373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/21/2022] [Indexed: 11/17/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a rheumatic disease. Growth differentiation factor 15 (GDF-15) is a member of transforming growth factor-β superfamily. To date, association of GDF-15 with SLE pathogenesis is not clarified. This study discussed GDF-15 serum levels and gene polymorphisms in SLE patients and lupus mouse model further demonstrated the role of GDF-15 in lupus development. We conducted two independent case-control studies for SLE patients. One is to evaluate serum levels of GDF-15 in 54 SLE patients and 90 healthy controls, and the other one is to analyze gene polymorphisms of GDF-15 in 289 SLE patients and 525 healthy controls. Serum levels of GDF-15 were detected by ELISA. GDF-15 gene polymorphisms (rs1055150, rs1058587, rs1059519, rs1059369, rs1227731, rs4808793, and rs16982345) were genotyped by the Kompetitive Allele-Specific PCR (KASP) method. Addition of recombinant GDF-15 into pristane-induced lupus mice evaluated histological and serological changes. Results showed that serum levels of GDF-15 were overexpressed in SLE patients and associated with disease activity. Polymorphisms rs1055150, rs1059369, rs1059519, and rs4808793 of GDF-15 gene were related to SLE risk. Lupus mice showed splenomegaly, severe histological scores, and high levels of autoantibodies [antinuclear antibodies (ANA) and total immunoglobulin G (IgG)], whereas administration of GDF-15 into lupus mice reduced the histological changes. Percentages of CD8+, CD11b+, CD19+, CD11C+ cells, TH2 cells, and pro-inflammatory cytokines (IL-1β, IL-2, IL-4, IL-21, and IL-22) were reduced after GDF-15 treatment in lupus mice. In conclusion, GDF-15 was related to lupus pathogenesis and inhibited lupus development.
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Affiliation(s)
- Wang-Dong Xu
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, China
| | - Qi Huang
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, China
| | - Chan Yang
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, China
| | - Rong Li
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, China
| | - An-Fang Huang
- Department of Rheumatology and Immunology, Affiliated Hospital of Southwest Medical University, Luzhou, China
- *Correspondence: An-Fang Huang,
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24
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Wang Q, Wang H, Ding Y, Wan M, Xu M. The Role of Adipokines in Pancreatic Cancer. Front Oncol 2022; 12:926230. [PMID: 35875143 PMCID: PMC9305334 DOI: 10.3389/fonc.2022.926230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/13/2022] [Indexed: 12/24/2022] Open
Abstract
In modern society, inappropriate diets and other lifestyle habits have made obesity an increasingly prominent health problem. Pancreatic cancer (PC), a kind of highly aggressive malignant tumor, is known as a silent assassin and is the seventh leading cause of cancer death worldwide, pushing modern medicine beyond help. Adipokines are coming into notice because of the role of the intermediate regulatory junctions between obesity and malignancy. This review summarizes the current evidence for the relationship between highly concerning adipokines and the pathogenesis of PC. Not only are classical adipokines such as leptin and adiponectin included, but they also cover the recognized chemerin and osteopontin. Through a summary of the biological functions of these adipokines as well as their receptors, it was discovered that in addition to their basic function of stimulating the biological activity of tumors, more studies confirm that adipokines intervene in the progression of PC from the viewpoint of tumor metabolism, immune escape, and reprogramming of the tumor microenvironment (TME). Besides endocrine function, the impact of white adipose tissue (WAT)-induced chronic inflammation on PC is briefly discussed. Furthermore, the potential implication of the acknowledged endocrine behavior of brown adipose tissue (BAT) in relation to carcinogenesis is also explored. No matter the broad spectrum of obesity and the poor prognosis of PC, supplemental research is needed to unravel the detailed network of adipokines associated with PC. Exploiting profound therapeutic strategies that target adipokines and their receptors may go some way to improving the current worrying prognosis of PC patients.
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25
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The armadillo-repeat containing X-linked protein 3, ARMCX3, is a negative regulator of the browning of adipose tissue associated with obesity. Int J Obes (Lond) 2022; 46:1652-1661. [PMID: 35705702 DOI: 10.1038/s41366-022-01169-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 06/07/2022] [Accepted: 06/07/2022] [Indexed: 11/08/2022]
Abstract
OBJECTIVES To determine the role of armadillo repeat-containing X-linked protein 3 (ARMCX3) in the thermogenic plasticity of adipose tissue. METHODS Adipose tissues were characterized in Armcx3-KO male mice. Armcx3 gene expression was analyzed in adipose tissue from mice exposed to thermogenic inducers (cold, β3-adenergic stimulus) and in differentiating brown and beige cells in culture. Analyses encompassed circulating metabolite and hormonal profiling, tissue characterization, histology, gene expression patterns, and immunoblot assays. Armcx3 gene expression was assessed in subcutaneous adipose tissue from lean individuals and individuals with obesity and was correlated with expression of marker genes of adipose browning. The effects of adenoviral-mediated overexpression of ARMCX3 on differentiating brown adipocyte gene expression and respiratory activity were determined. RESULTS Male mice lacking ARMCX3 showed significant induction of white adipose tissue browning. In humans, ARMCX3 expression in subcutaneous adipose tissue was inversely correlated with the expression of marker genes of thermogenic activity, including CIDEA, mitochondrial transcripts, and creatine kinase-B. Armcx3 expression in adipose tissues was repressed by thermogenic activation (cold or β3-adrenergic stimulation) and was upregulated by obesity in mice and humans. Experimentally-induced increases in Armcx3 caused down-regulation of thermogenesis-related genes and reduced mitochondrial oxidative activity of adipocytes in culture, whereas siRNA-mediated Armcx3 knocking-down enhanced expression of thermogenesis-related genes. CONCLUSION ARMCX3 is a novel player in the control of thermogenic adipose tissue plasticity that acts to repress acquisition of the browning phenotype and shows a direct association with indicators of obesity in mice and humans.
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26
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Altınova AE. Beige Adipocyte as the Flame of White Adipose Tissue: Regulation of Browning and Impact of Obesity. J Clin Endocrinol Metab 2022; 107:e1778-e1788. [PMID: 34967396 DOI: 10.1210/clinem/dgab921] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Indexed: 11/19/2022]
Abstract
Beige adipocyte, the third and relatively new type of adipocyte, can emerge in white adipose tissue (WAT) under thermogenic stimulations that is termed as browning of WAT. Recent studies suggest that browning of WAT deserves more attention and therapies targeting browning of WAT can be helpful for reducing obesity. Beyond the major inducers of browning, namely cold and β 3-adrenergic stimulation, beige adipocytes are affected by several factors, and excess adiposity per se may also influence the browning process. The objective of the present review is to provide an overview of recent clinical and preclinical studies on the hormonal and nonhormonal factors that affect the browning of WAT. This review further focuses on the role of obesity per se on browning process.
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Affiliation(s)
- Alev Eroğlu Altınova
- Gazi University Faculty of Medicine, Department of Endocrinology and Metabolism, 06500 Ankara, Turkey
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27
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Abstract
PURPOSE OF REVIEW This review highlights aspects of brown adipose tissue (BAT) communication with other organ systems and how BAT-to-tissue cross-talk could help elucidate future obesity treatments. RECENT FINDINGS Until recently, research on BAT has focused mainly on its thermogenic activity. New research has identified an endocrine/paracrine function of BAT and determined that many BAT-derived molecules, termed "batokines," affect the physiology of a variety of organ systems and cell types. Batokines encompass a variety of signaling molecules including peptides, metabolites, lipids, or microRNAs. Recent studies have noted significant effects of batokines on physiology as it relates whole-body metabolism and cardiac function. This review will discuss batokines and other BAT processes that affect the liver, cardiovascular system, skeletal muscle, immune cells, and brown and white adipose tissue. Brown adipose tissue has a crucial secretory function that plays a key role in systemic physiology.
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Affiliation(s)
- Felix T Yang
- Department of Physiology and Cell Biology, The Ohio State University Wexner Medical Center, 460 W. 12th Ave, Columbus, OH, 43210, USA
- Diabetes and Metabolism Research Center, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Kristin I Stanford
- Department of Physiology and Cell Biology, The Ohio State University Wexner Medical Center, 460 W. 12th Ave, Columbus, OH, 43210, USA.
- Diabetes and Metabolism Research Center, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
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28
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Herrmann JR, Fink EL, Fabio A, Au AK, Berger RP, Janesko-Feldman K, Clark RSB, Kochanek PM, Jackson TC. Serum levels of the cold stress hormones FGF21 and GDF-15 after cardiac arrest in infants and children enrolled in single center therapeutic hypothermia clinical trials. Resuscitation 2022; 172:173-180. [PMID: 34822938 PMCID: PMC8923906 DOI: 10.1016/j.resuscitation.2021.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/29/2021] [Accepted: 11/15/2021] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Fibroblast Growth Factor 21 (FGF21) and Growth Differentiation Factor-15 (GDF-15) are putative neuroprotective cold stress hormones (CSHs) provoked by cold exposure that may be age-dependent. We sought to characterize serum FGF21 and GDF-15 levels in pediatric cardiac arrest (CA) patients and their association with use of therapeutic hypothermia (TH). METHODS Secondary analysis of serum samples from clinical trials. We measured FGF21 and GDF-15 levels in pediatric patients post-CA and compared levels to both pediatric intensive care (PICU) and healthy controls. Post-CA, we compared normothermia (NT) vs TH (33 °C for 72 h) treated cohorts at < 24 h, 24 h, 48 h, 72 h, and examined the change in CSHs over 72 h. We also assessed association between hospital mortality and initial levels. RESULTS We assessed 144 samples from 68 patients (27 CA [14 TH, 13 NT], 9 PICU and 32 healthy controls). Median initial FGF21 levels were higher post-CA vs. healthy controls (392 vs. 40 pg/mL, respectively, P < 0.001). Median GDF-15 levels were higher post-CA vs. healthy controls (7,089 vs. 396 pg/mL, respectively, P < 0.001). In the CA group, the median change in FGF21 from PICU day 1-3 (after 72 h of temperature control), was higher in TH vs. NT (231 vs. -20 pg/mL, respectively, P < 0.05), with no difference in GDF-15 over time. Serum GDF-15 levels were higher in CA patients that died vs. survived (19,450 vs. 5,337 pg/mL, respectively, P < 0.05), whereas serum FGF21 levels were not associated with mortality. CONCLUSION Serum levels of FGF21 and GDF-15 increased after pediatric CA, and FGF21 appears to be augmented by TH.
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Affiliation(s)
- Jeremy R Herrmann
- Departments of Critical Care Medicine, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine and UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Ericka L Fink
- Departments of Critical Care Medicine, Pittsburgh, PA, USA; Pediatrics, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine and UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Anthony Fabio
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alicia K Au
- Departments of Critical Care Medicine, Pittsburgh, PA, USA; Pediatrics, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine and UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Rachel P Berger
- Pediatrics, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine and UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Keri Janesko-Feldman
- Departments of Critical Care Medicine, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine and UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Robert S B Clark
- Departments of Critical Care Medicine, Pittsburgh, PA, USA; Pediatrics, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine and UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Patrick M Kochanek
- Departments of Critical Care Medicine, Pittsburgh, PA, USA; Pediatrics, Pittsburgh, PA, USA; Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine and UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA.
| | - Travis C Jackson
- Department of Molecular Pharmacology and Physiology, University of South Florida Morsani College of Medicine, Tampa, FL, USA
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29
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Gavaldà-Navarro A, Villarroya J, Cereijo R, Giralt M, Villarroya F. The endocrine role of brown adipose tissue: An update on actors and actions. Rev Endocr Metab Disord 2022; 23:31-41. [PMID: 33712997 DOI: 10.1007/s11154-021-09640-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/26/2021] [Indexed: 02/06/2023]
Abstract
In recent years, brown adipose tissue (BAT) has been recognized not only as a main site of non-shivering thermogenesis in mammals, but also as an endocrine organ. BAT secretes a myriad of regulatory factors. These so-called batokines exert local autocrine and paracrine effects, as well as endocrine actions targeting tissues and organs at a distance. The endocrine batokines include peptide factors, such as fibroblast growth factor-21 (FGF21), neuregulin-4 (NRG4), phospholipid transfer protein (PLTP), interleukin-6, adiponectin and myostatin, and also lipids (lipokines; e.g., 12,13-dihydroxy-9Z-octadecenoic acid [12,13-diHOME]) and miRNAs (e.g., miR-99b). The liver, heart, and skeletal muscle are the most commonly reported targets of batokines. In response to BAT thermogenic activation, batokines such as NRG4 and PLTP are released and act to reduce hepatic steatosis and improve insulin sensitivity. Stress-induced interleukin-6-mediated signaling from BAT to liver favors hepatic glucose production through enhanced gluconeogenesis. Batokines may act on liver to induce the secretion of regulatory hepatokines (e.g. FGF21 and bile acids in response to miR-99b and PLTP, respectively), thereby resulting in a systemic expansion of BAT-originating signals. Batokines also target extrahepatic tissues: FGF21 and 12,13-diHOME are cardioprotective, whereas BAT-secreted myostatin and 12,13-diHOME influence skeletal muscle development and performance. Further research is needed to ascertain in humans the role of batokines, which have been identified mostly in experimental models. The endocrine role of BAT may explain the association between active BAT and a healthy metabolism in the human system, which is characterized by small amounts of BAT and a likely moderate BAT-mediated energy expenditure.
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Affiliation(s)
- Aleix Gavaldà-Navarro
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain
- Institut de Recerca Sant Joan de Déu, Esplugues, Catalonia, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain
| | - Joan Villarroya
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain
- Institut de Recerca Sant Joan de Déu, Esplugues, Catalonia, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain
| | - Rubén Cereijo
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain
- Institut de Recerca Hospital de La Santa Creu I Sant Pau, Barcelona, Spain
| | - Marta Giralt
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain
- Institut de Recerca Sant Joan de Déu, Esplugues, Catalonia, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain
| | - Francesc Villarroya
- Departament de Bioquimica I Biomedicina Molecular, and Institut de Biomedicina de La Universitat de Barcelona, Barcelona, Catalonia, Spain.
- Institut de Recerca Sant Joan de Déu, Esplugues, Catalonia, Spain.
- CIBER Fisiopatología de La Obesidad Y Nutrición, Madrid, Spain.
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30
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Klein AB, Kleinert M, Richter EA, Clemmensen C. GDF15 in Appetite and Exercise: Essential Player or Coincidental Bystander? Endocrinology 2022; 163:6440292. [PMID: 34849709 DOI: 10.1210/endocr/bqab242] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Indexed: 02/07/2023]
Abstract
Growth differentiation factor 15 (GDF15) has recently moved to the forefront of metabolism research. When administered pharmacologically, GDF15 reduces food intake and lowers body weight via the hindbrain-situated receptor GFRAL (glial cell-derived neurotrophic factor family receptor alpha-like). Endogenous GDF15 is a ubiquitous cellular stress signal that can be produced and secreted by a variety of cell types. Circulating levels are elevated in a series of disease states, but also in response to exogenous agents such as metformin, colchicine, AICAR, and cisplatin. Recently, exercise has emerged as a relevant intervention to interrogate GDF15 physiology. Prolonged endurance exercise increases circulating GDF15 to levels otherwise associated with certain pathological states and in response to metformin treatment. The jury is still out on whether GDF15 is a functional "exerkine" mediating organ-to-brain crosstalk or whether it is a coincidental bystander. In this review, we discuss the putative physiological implication of exercise-induced GDF15, focusing on the potential impact on appetite and metabolism.
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Affiliation(s)
- Anders B Klein
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Maximilian Kleinert
- Muscle Physiology and Metabolism Group, German Institute of Human Nutrition (DIfE), Potsdam - Rehbrücke, Nuthetal, Germany
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Erik A Richter
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Christoffer Clemmensen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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31
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Agueda-Oyarzabal M, Emanuelli B. Immune Cells in Thermogenic Adipose Depots: The Essential but Complex Relationship. Front Endocrinol (Lausanne) 2022; 13:839360. [PMID: 35360060 PMCID: PMC8963988 DOI: 10.3389/fendo.2022.839360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 01/28/2022] [Indexed: 01/09/2023] Open
Abstract
Brown adipose tissue (BAT) is a unique organ in mammals capable of dissipating energy in form of heat. Additionally, white adipose tissue (WAT) can undergo browning and perform thermogenesis. In recent years, the research community has aimed to harness thermogenic depot functions for new therapeutic strategies against obesity and the metabolic syndrome; hence a comprehensive understanding of the thermogenic fat microenvironment is essential. Akin to WAT, immune cells also infiltrate and reside within the thermogenic adipose tissues and perform vital functions. As highly plastic organs, adipose depots rely on crucial interplay with these tissue resident cells to conserve their healthy state. Evidence has accumulated to show that different immune cell populations contribute to thermogenic adipose tissue homeostasis and activation through complex communicative networks. Furthermore, new studies have identified -but still not fully characterized further- numerous immune cell populations present in these depots. Here, we review the current knowledge of this emerging field by describing the immune cells that sway the thermogenic adipose depots, and the complex array of communications that influence tissue performance.
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32
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Pinckard KM, Stanford KI. The Heartwarming Effect of Brown Adipose Tissue. Mol Pharmacol 2021; 102:460-471. [PMID: 34933905 PMCID: PMC9341250 DOI: 10.1124/molpharm.121.000328] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 10/27/2021] [Indexed: 11/22/2022] Open
Abstract
Brown adipose tissue (BAT) is a metabolically active tissue that improves glucose metabolism and protects against the development of type 2 diabetes and obesity. However, the role of BAT to improve cardiovascular health has only recently been investigated. In this review, we discuss multiple mechanisms through which both the thermogenic and endocrine functions of BAT mediate cardiac health. β-adrenergic stimulation activates the thermogenic function of BAT, resulting in reduced circulating lipids and glucose, and enhanced clearance of hepatic cholesterol-enriched remnants leading to reduced atherosclerotic region size. Additionally, the thermogenic role of BAT has been implicated in activation of the protein kinase B-extracellular-signal-regulated kinase (ERK) 1/2 pathway after myocardial infarction (MI), contributing to reduced injury size. The endocrine function of BAT has also been implicated to improve both systemic metabolic health and cardiac health. Specifically, the batokines fibroblast growth factor 21 (FGF21) and 12,13-diHOME improve cardiovascular health via reduced hypertension, hypertrophy and MI injury size (FGF21) or by directly improving cardiac function via calcium cycling (12,13-diHOME). Finally, we discuss relevant pharmacological treatment methods currently aiming to activate BAT, typically through sympathetic activation.
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Shamsi F, Wang CH, Tseng YH. The evolving view of thermogenic adipocytes - ontogeny, niche and function. Nat Rev Endocrinol 2021; 17:726-744. [PMID: 34625737 PMCID: PMC8814904 DOI: 10.1038/s41574-021-00562-6] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/27/2021] [Indexed: 12/12/2022]
Abstract
The worldwide incidence of obesity and its sequelae, such as type 2 diabetes mellitus, have reached pandemic levels. Central to the development of these metabolic disorders is adipose tissue. White adipose tissue stores excess energy, whereas brown adipose tissue (BAT) and beige (also known as brite) adipose tissue dissipate energy to generate heat in a process known as thermogenesis. Strategies that activate and expand BAT and beige adipose tissue increase energy expenditure in animal models and offer therapeutic promise to treat obesity. A better understanding of the molecular mechanisms underlying the development of BAT and beige adipose tissue and the activation of thermogenic function is the key to creating practical therapeutic interventions for obesity and metabolic disorders. In this Review, we discuss the regulation of the tissue microenvironment (the adipose niche) and inter-organ communication between BAT and other tissues. We also cover the activation of BAT and beige adipose tissue in response to physiological cues (such as cold exposure, exercise and diet). We highlight advances in harnessing the therapeutic potential of BAT and beige adipose tissue by genetic, pharmacological and cell-based approaches in obesity and metabolic disorders.
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Affiliation(s)
- Farnaz Shamsi
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, USA
| | - Chih-Hao Wang
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Yu-Hua Tseng
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA.
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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34
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Keipert S, Ost M. Stress-induced FGF21 and GDF15 in obesity and obesity resistance. Trends Endocrinol Metab 2021; 32:904-915. [PMID: 34526227 DOI: 10.1016/j.tem.2021.08.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/16/2021] [Accepted: 08/21/2021] [Indexed: 02/06/2023]
Abstract
Fibroblast growth factor 21 (FGF21) and growth differentiation factor 15 (GDF15) are established as stress-responsive cytokines that can modulate energy balance by increasing energy expenditure or suppressing food intake, respectively. Despite their pharmacologically induced beneficial effects on obesity and comorbidities, circulating levels of both cytokines are elevated during obesity and related metabolic complications. On the other hand, endocrine crosstalk via FGF21 and GDF15 was also reported to play a crucial role in genetically modified mouse models of mitochondrial perturbations leading to diet-induced obesity (DIO) resistance. This review aims to dissect the complexities of endogenous FGF21 and GDF15 action in obesity versus DIO resistance for the regulation of energy balance in metabolic health and disease.
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Affiliation(s)
- Susanne Keipert
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden.
| | - Mario Ost
- Institute of Anatomy, University of Leipzig, Leipzig, Germany
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35
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Jiang WW, Zhang ZZ, He PP, Jiang LP, Chen JZ, Zhang XT, Hu M, Zhang YK, Ouyang XP. Emerging roles of growth differentiation factor-15 in brain disorders (Review). Exp Ther Med 2021; 22:1270. [PMID: 34594407 PMCID: PMC8456456 DOI: 10.3892/etm.2021.10705] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 08/06/2021] [Indexed: 12/14/2022] Open
Abstract
Brain disorders, such as Alzheimer's and Parkinson's disease and cerebral stroke, are an important contributor to mortality and disability worldwide, where their pathogenesis is currently a topic of intense research. The mechanisms underlying the development of brain disorders are complex and vary widely, including aberrant protein aggregation, ischemic cell necrosis and neuronal dysfunction. Previous studies have found that the expression and function of growth differentiation factor-15 (GDF15) is closely associated with the incidence of brain disorders. GDF15 is a member of the TGFβ superfamily, which is a dimer-structured stress-response protein. The expression of GDF15 is regulated by a number of proteins upstream, including p53, early growth response-1, non-coding RNAs and hormones. In particular, GDF15 has been reported to serve an important role in regulating angiogenesis, apoptosis, lipid metabolism and inflammation. For example, GDF15 can promote angiogenesis by promoting the proliferation of human umbilical vein endothelial cells, apoptosis of prostate cancer cells and fat metabolism in fasted mice, and GDF15 can decrease the inflammatory response of lipopolysaccharide-treated mice. The present article reviews the structure and biosynthesis of GDF15, in addition to the possible roles of GDF15 in Alzheimer's disease, cerebral stroke and Parkinson's disease. The purpose of the present review is to summarize the mechanism underlying the role of GDF15 in various brain disorders, which hopes to provide evidence and guide the prevention and treatment of these debilitating conditions.
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Affiliation(s)
- Wei-Wei Jiang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Zi-Zhen Zhang
- Department of Medical Humanities, School of Medicine, Hunan Polytechnic of Environment and Biology, Hengyang, Hunan 421001, P.R. China
| | - Ping-Ping He
- Hunan Province Cooperative Innovation Centre for Molecular Target New Drug Study, Nursing School, University of South China, Hengyang, Hunan 421001, P.R. China.,Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Li-Ping Jiang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China.,Department of Critical Care Medicine, Hunan Taihe Hospital, Changsha, Hunan 410004, P.R. China
| | - Jin-Zhi Chen
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Xing-Ting Zhang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Mi Hu
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Yang-Kai Zhang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Xin-Ping Ouyang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China.,Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan 421001, P.R. China
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36
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Wang D, Day EA, Townsend LK, Djordjevic D, Jørgensen SB, Steinberg GR. GDF15: emerging biology and therapeutic applications for obesity and cardiometabolic disease. Nat Rev Endocrinol 2021; 17:592-607. [PMID: 34381196 DOI: 10.1038/s41574-021-00529-7] [Citation(s) in RCA: 158] [Impact Index Per Article: 52.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/17/2021] [Indexed: 02/06/2023]
Abstract
Growth differentiation factor 15 (GDF15) is a member of the TGFβ superfamily whose expression is increased in response to cellular stress and disease as well as by metformin. Elevations in GDF15 reduce food intake and body mass in animal models through binding to glial cell-derived neurotrophic factor family receptor alpha-like (GFRAL) and the recruitment of the receptor tyrosine kinase RET in the hindbrain. This effect is largely independent of other appetite-regulating hormones (for example, leptin, ghrelin or glucagon-like peptide 1). Consistent with an important role for the GDF15-GFRAL signalling axis, some human genetic studies support an interrelationship with human obesity. Furthermore, findings in both mice and humans have shown that metformin and exercise increase circulating levels of GDF15. GDF15 might also exert anti-inflammatory effects through mechanisms that are not fully understood. These unique and distinct mechanisms for suppressing food intake and inflammation makes GDF15 an appealing candidate to treat many metabolic diseases, including obesity, type 2 diabetes mellitus, non-alcoholic fatty liver disease, cardiovascular disease and cancer cachexia. Here, we review the mechanisms regulating GDF15 production and secretion, GDF15 signalling in different cell types, and how GDF15-targeted pharmaceutical approaches might be effective in the treatment of metabolic diseases.
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Affiliation(s)
- Dongdong Wang
- Centre for Metabolism, Obesity and Diabetes Research and the Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Emily A Day
- Centre for Metabolism, Obesity and Diabetes Research and the Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Logan K Townsend
- Centre for Metabolism, Obesity and Diabetes Research and the Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Djordje Djordjevic
- Global Obesity and Liver Disease Research, Novo Nordisk A/S, Maaloev, Denmark
| | | | - Gregory R Steinberg
- Centre for Metabolism, Obesity and Diabetes Research and the Department of Medicine, McMaster University, Hamilton, ON, Canada.
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37
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Milbank E, Dragano NRV, González-García I, Garcia MR, Rivas-Limeres V, Perdomo L, Hilairet G, Ruiz-Pino F, Mallegol P, Morgan DA, Iglesias-Rey R, Contreras C, Vergori L, Cuñarro J, Porteiro B, Gavaldà-Navarro A, Oelkrug R, Vidal A, Roa J, Sobrino T, Villarroya F, Diéguez C, Nogueiras R, García-Cáceres C, Tena-Sempere M, Mittag J, Carmen Martínez M, Rahmouni K, Andriantsitohaina R, López M. Small extracellular vesicle-mediated targeting of hypothalamic AMPKα1 corrects obesity through BAT activation. Nat Metab 2021; 3:1415-1431. [PMID: 34675439 DOI: 10.1038/s42255-021-00467-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 09/02/2021] [Indexed: 12/17/2022]
Abstract
Current pharmacological therapies for treating obesity are of limited efficacy. Genetic ablation or loss of function of AMP-activated protein kinase alpha 1 (AMPKα1) in steroidogenic factor 1 (SF1) neurons of the ventromedial nucleus of the hypothalamus (VMH) induces feeding-independent resistance to obesity due to sympathetic activation of brown adipose tissue (BAT) thermogenesis. Here, we show that body weight of obese mice can be reduced by intravenous injection of small extracellular vesicles (sEVs) delivering a plasmid encoding an AMPKα1 dominant negative mutant (AMPKα1-DN) targeted to VMH-SF1 neurons. The beneficial effect of SF1-AMPKα1-DN-loaded sEVs is feeding-independent and involves sympathetic nerve activation and increased UCP1-dependent thermogenesis in BAT. Our results underscore the potential of sEVs to specifically target AMPK in hypothalamic neurons and introduce a broader strategy to manipulate body weight and reduce obesity.
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Affiliation(s)
- Edward Milbank
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
- SOPAM, U1063, INSERM, University of Angers, SFR ICAT, Bat IRIS-IBS, Angers, France
| | - Nathalia R V Dragano
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | - Ismael González-García
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Marcos Rios Garcia
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | - Verónica Rivas-Limeres
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | - Liliana Perdomo
- SOPAM, U1063, INSERM, University of Angers, SFR ICAT, Bat IRIS-IBS, Angers, France
| | - Grégory Hilairet
- SOPAM, U1063, INSERM, University of Angers, SFR ICAT, Bat IRIS-IBS, Angers, France
| | - Francisco Ruiz-Pino
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica (IMIBIC)/Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Patricia Mallegol
- SOPAM, U1063, INSERM, University of Angers, SFR ICAT, Bat IRIS-IBS, Angers, France
| | - Donald A Morgan
- Department of Neuroscience and Pharmacology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Ramón Iglesias-Rey
- Clinical Neurosciences Research Laboratory, Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
| | - Cristina Contreras
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | - Luisa Vergori
- SOPAM, U1063, INSERM, University of Angers, SFR ICAT, Bat IRIS-IBS, Angers, France
| | - Juan Cuñarro
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | - Begoña Porteiro
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | - Aleix Gavaldà-Navarro
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
- Institut de Biomedicina de la Universitat de Barcelona-Institut de Recerca Hospital Sant Joan de Déu, IBUB-IRSJD, Barcelona, Spain
| | - Rebecca Oelkrug
- Institute for Endocrinology and Diabetes-Molecular Endocrinology, Center of Brain Behavior and Metabolism CBBM, University of Lübeck, Lübeck, Germany
| | - Anxo Vidal
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
| | - Juan Roa
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica (IMIBIC)/Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Tomás Sobrino
- Clinical Neurosciences Research Laboratory, Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
| | - Francesc Villarroya
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
- Institut de Biomedicina de la Universitat de Barcelona-Institut de Recerca Hospital Sant Joan de Déu, IBUB-IRSJD, Barcelona, Spain
| | - Carlos Diéguez
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | - Rubén Nogueiras
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | - Cristina García-Cáceres
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), German Center for Diabetes Research (DZD), Neuherberg, Germany
- Medizinische Klinik and Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Manuel Tena-Sempere
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica (IMIBIC)/Hospital Universitario Reina Sofía, Córdoba, Spain
- FiDiPro Program, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Jens Mittag
- Institute for Endocrinology and Diabetes-Molecular Endocrinology, Center of Brain Behavior and Metabolism CBBM, University of Lübeck, Lübeck, Germany
| | - M Carmen Martínez
- SOPAM, U1063, INSERM, University of Angers, SFR ICAT, Bat IRIS-IBS, Angers, France
| | - Kamal Rahmouni
- Department of Neuroscience and Pharmacology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | | | - Miguel López
- Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain.
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain.
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Mestres-Arenas A, Villarroya J, Giralt M, Villarroya F, Peyrou M. A Differential Pattern of Batokine Expression in Perivascular Adipose Tissue Depots From Mice. Front Physiol 2021; 12:714530. [PMID: 34421656 PMCID: PMC8373243 DOI: 10.3389/fphys.2021.714530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/13/2021] [Indexed: 11/25/2022] Open
Abstract
Depending on its anatomical placement, perivascular adipose tissue (PVAT) has been found to possess features more (e.g., aortic thoracic) or less (e.g., aortic abdominal) similar to brown/beige adipose tissue in mice, whereas PVAT surrounding the mesenteric arteries and the caudal part of abdominal aorta is similar to white fat. PVAT is thought to influence vascular function through the effects of adipose-secreted molecules on vessels. Brown adipose tissue was recently shown to play differential secretory role via secretion of the so-called batokines but the involvement of differential batokine production in PVAT brown/beige plasticity was unclear. The current study characterizes for the first time the expression of batokines at aortic thoracic PVAT (tPVAT) and aortic abdominal PVAT (aPVAT) in comparison with typical brown and white adipose depots, in basal and thermogenically activated conditions. We found that both PVAT depots increased their expression of genes encoding the batokines bone morphogenetic protein-8b (BMP8B), fibroblast growth factor-21 (FGF21), and kininogen-2 (KNG2) in response to cold, indicating that, under cold-induced thermogenic activation, both thoracic aorta and abdominal aorta would experience intense local exposure to these PVAT-secreted batokines. In contrast, the gene expression levels of growth/differentiation factor-15 and vascular endothelial growth factor-A were induced only in tPVAT. Under short-term high-fat diet-induced thermogenic activation, the thoracic aorta would be specifically exposed to a local increase in PVAT-originating BMP8B, FGF21, and KNG2. Our data support the notion that acquisition of a brown/beige phenotype in PVAT is associated with upregulation of batokines, mainly BMP8B, FGF21, and KNG2, that can differentially target the vascular system.
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Affiliation(s)
- Alberto Mestres-Arenas
- Departament de Bioquímica i Biomedicina Molecular and Institut de Biomedicina, Universitat de Barcelona, Barcelona, Spain
| | - Joan Villarroya
- Departament de Bioquímica i Biomedicina Molecular and Institut de Biomedicina, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red "Fisiopatología de la Obesidad y Nutrición", Madrid, Spain.,Institut de Recerca Hospital Sant Joan de Déu, Barcelona, Spain
| | - Marta Giralt
- Departament de Bioquímica i Biomedicina Molecular and Institut de Biomedicina, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red "Fisiopatología de la Obesidad y Nutrición", Madrid, Spain.,Institut de Recerca Hospital Sant Joan de Déu, Barcelona, Spain
| | - Francesc Villarroya
- Departament de Bioquímica i Biomedicina Molecular and Institut de Biomedicina, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red "Fisiopatología de la Obesidad y Nutrición", Madrid, Spain.,Institut de Recerca Hospital Sant Joan de Déu, Barcelona, Spain
| | - Marion Peyrou
- Departament de Bioquímica i Biomedicina Molecular and Institut de Biomedicina, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red "Fisiopatología de la Obesidad y Nutrición", Madrid, Spain.,Institut de Recerca Hospital Sant Joan de Déu, Barcelona, Spain
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Townsend LK, MacPherson REK, Wright DC. New Horizon: Exercise and a Focus on Tissue-Brain Crosstalk. J Clin Endocrinol Metab 2021; 106:2147-2163. [PMID: 33982072 DOI: 10.1210/clinem/dgab333] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Indexed: 01/03/2023]
Abstract
The world population is aging, leading to increased rates of neurodegenerative disorders. Exercise has countless health benefits and has consistently been shown to improve brain health and cognitive function. The purpose of this review is to provide an overview of exercise-induced adaptations in the brain with a focus on crosstalk between peripheral tissues and the brain. We highlight recent investigations into exercise-induced circulating factors, or exerkines, including irisin, cathepsin B, GPLD1, and ketones and the mechanisms mediating their effects in the brain.
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Affiliation(s)
- Logan K Townsend
- Department of Medicine, McMaster University, Hamilton, L8S 4L8, Canada
- Department of Human Health and Nutritional Science, University of Guelph, Guelph, N1G 2W1, Canada
| | - Rebecca E K MacPherson
- Department of Health Sciences and Centre for Neuroscience, Brock University, St. Catharines, L2S 3A1, Canada
| | - David C Wright
- Department of Human Health and Nutritional Science, University of Guelph, Guelph, N1G 2W1, Canada
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Mae J, Nagaya K, Okamatsu-Ogura Y, Tsubota A, Matsuoka S, Nio-Kobayashi J, Kimura K. Adipocytes and Stromal Cells Regulate Brown Adipogenesis Through Secretory Factors During the Postnatal White-to-Brown Conversion of Adipose Tissue in Syrian Hamsters. Front Cell Dev Biol 2021; 9:698692. [PMID: 34291052 PMCID: PMC8287570 DOI: 10.3389/fcell.2021.698692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/07/2021] [Indexed: 11/13/2022] Open
Abstract
Brown adipose tissue (BAT) is a specialized tissue that regulates non-shivering thermogenesis. In Syrian hamsters, interscapular adipose tissue is composed primarily of white adipocytes at birth, which is converted to BAT through the proliferation and differentiation of brown adipocyte progenitors and the simultaneous disappearance of white adipocytes. In this study, we investigated the regulatory mechanism of brown adipogenesis during postnatal BAT formation in hamsters. Interscapular adipose tissue of a 10-day-old hamster, which primarily consists of brown adipocyte progenitors and white adipocytes, was digested with collagenase and fractioned into stromal–vascular (SV) cells and white adipocytes. SV cells spontaneously differentiated into brown adipocytes that contained multilocular lipid droplets and expressed uncoupling protein 1 (Ucp1), a marker of brown adipocytes, without treatment of adipogenic cocktail such as dexamethasone and insulin. The spontaneous differentiation of SV cells was suppressed by co-culture with adipocytes or by the addition of white adipocyte-conditioned medium. Conversely, the addition of SV cell-conditioned medium increased the expression of Ucp1. These results indicate that adipocytes secrete factors that suppress brown adipogenesis, whereas SV cells secrete factors that promote brown adipogenesis. Transcriptome analysis was conducted; however, no candidate suppressing factors secreted from adipocytes were identified. In contrast, 19 genes that encode secretory factors, including bone morphogenetic protein (BMP) family members, BMP3B, BMP5, and BMP7, were highly expressed in SV cells compared with adipocytes. Furthermore, the SMAD and MAPK signaling pathways, which represent the major BMP signaling pathways, were activated in SV cells, suggesting that BMPs secreted from SV cells induce brown adipogenesis in an autocrine manner through the SMAD/MAPK signaling pathways. Treatment of 5-day-old hamsters with type I BMP receptor inhibitor, LDN-193189, for 5 days reduced p38 MAPK phosphorylation and drastically suppressed BAT formation of interscapular adipose tissue. In conclusion, adipocytes and stromal cells regulate brown adipogenesis through secretory factors during the postnatal white-to-brown conversion of adipose tissue in Syrian hamsters.
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Affiliation(s)
- Junnosuke Mae
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Kazuki Nagaya
- 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
| | - Ayumi Tsubota
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Shinya Matsuoka
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Junko Nio-Kobayashi
- Laboratory of Histology and Cytology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kazuhiro Kimura
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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Townsend LK, Weber AJ, Day EA, Shamshoum H, Shaw SJ, Perry CGR, Kemp BE, Steinberg GR, Wright DC. AMPK mediates energetic stress-induced liver GDF15. FASEB J 2021; 35:e21218. [PMID: 33337559 DOI: 10.1096/fj.202000954r] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 10/30/2020] [Accepted: 11/10/2020] [Indexed: 12/11/2022]
Abstract
Growth differentiating factor-15 (GDF15) is an emerging target for the treatment of obesity and metabolic disease partly due to its ability to suppress food intake. GDF15 expression and secretion are thought to be regulated by a cellular integrated stress response, which involves endoplasmic reticulum (ER) stress. AMPK is another cellular stress sensor, but the relationship between AMPK, ER stress, and GDF15 has not been assessed in vivo. Wildtype (WT), AMPK β1 deficient (AMPKβ1-/- ), and CHOP-/- mice were treated with three distinct AMPK activators; AICAR, which is converted to ZMP mimicking the effects of AMP on the AMPKγ isoform, R419, which indirectly activates AMPK through inhibition of mitochondrial respiration, or A769662, a direct AMPK activator which binds the AMPKβ1 isoform ADaM site causing allosteric activation. Following treatments, liver Gdf15, markers of ER-stress, AMPK activity, adenine nucleotides, circulating GDF15, and food intake were assessed. AICAR and R419 caused ER and energetic stress, increased GDF15 expression and secretion, and suppressed food intake. Direct activation of AMPK β1 containing complexes by A769662 increased hepatic Gdf15 expression, circulating GDF15, and suppressed food intake, independent of ER stress. The effects of AICAR, R419, and A769662 on GDF15 were attenuated in AMPKβ1-/- mice. AICAR and A769662 increased GDF15 to a similar extent in WT and CHOP-/- mice. Herein, we provide evidence that AMPK plays a role in mediating the induction of GDF15 under conditions of energetic stress in mouse liver in vivo.
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Affiliation(s)
- Logan K Townsend
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada.,Centre for Metabolism, Obesity and Diabetes Research and Division of Endocrinology and Metabolism, Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Alyssa J Weber
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | - Emily A Day
- Centre for Metabolism, Obesity and Diabetes Research and Division of Endocrinology and Metabolism, Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Hesham Shamshoum
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | - Simon J Shaw
- Rigel Pharmaceuticals Inc., South San Francisco, CA, USA
| | - Christopher G R Perry
- School of Kinesiology and Health Science, Muscle Health Research Centre, York University, Toronto, ON, Canada
| | - Bruce E Kemp
- Department of Medicine, St. Vincent's Institute, University of Melbourne, Melbourne, Vic, Australia.,Mary MacKillop Institute for Health Research, Australian Catholic University, Fitzroy, Victoria, Australia
| | - Gregory R Steinberg
- Centre for Metabolism, Obesity and Diabetes Research and Division of Endocrinology and Metabolism, Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - David C Wright
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
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Abstract
Brown and beige adipocytes are mitochondria-enriched cells capable of dissipating energy in the form of heat. These thermogenic fat cells were originally considered to function solely in heat generation through the action of the mitochondrial protein uncoupling protein 1 (UCP1). In recent years, significant advances have been made in our understanding of the ontogeny, bioenergetics and physiological functions of thermogenic fat. Distinct subtypes of thermogenic adipocytes have been identified with unique developmental origins, which have been increasingly dissected in cellular and molecular detail. Moreover, several UCP1-independent thermogenic mechanisms have been described, expanding the role of these cells in energy homeostasis. Recent studies have also delineated roles for these cells beyond the regulation of thermogenesis, including as dynamic secretory cells and as a metabolic sink. This Review presents our current understanding of thermogenic adipocytes with an emphasis on their development, biological functions and roles in systemic physiology.
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Brandão BB, Poojari A, Rabiee A. Thermogenic Fat: Development, Physiological Function, and Therapeutic Potential. Int J Mol Sci 2021; 22:5906. [PMID: 34072788 PMCID: PMC8198523 DOI: 10.3390/ijms22115906] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 04/30/2021] [Accepted: 05/27/2021] [Indexed: 12/11/2022] Open
Abstract
The concerning worldwide increase of obesity and chronic metabolic diseases, such as T2D, dyslipidemia, and cardiovascular disease, motivates further investigations into preventive and alternative therapeutic approaches. Over the past decade, there has been growing evidence that the formation and activation of thermogenic adipocytes (brown and beige) may serve as therapy to treat obesity and its associated diseases owing to its capacity to increase energy expenditure and to modulate circulating lipids and glucose levels. Thus, understanding the molecular mechanism of brown and beige adipocytes formation and activation will facilitate the development of strategies to combat metabolic disorders. Here, we provide a comprehensive overview of pathways and players involved in the development of brown and beige fat, as well as the role of thermogenic adipocytes in energy homeostasis and metabolism. Furthermore, we discuss the alterations in brown and beige adipose tissue function during obesity and explore the therapeutic potential of thermogenic activation to treat metabolic syndrome.
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Affiliation(s)
- Bruna B. Brandão
- Section of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA;
| | - Ankita Poojari
- Department of Physiology & Pharmacology, Thomas J. Long School of Pharmacy & Health Sciences, University of the Pacific, Stockton, CA 95211, USA;
| | - Atefeh Rabiee
- Department of Physiology & Pharmacology, Thomas J. Long School of Pharmacy & Health Sciences, University of the Pacific, Stockton, CA 95211, USA;
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Dommerholt MB, Blankestijn M, Vieira‐Lara MA, van Dijk TH, Wolters H, Koster MH, Gerding A, van Os RP, Bloks VW, Bakker BM, Kruit JK, Jonker JW. Short-term protein restriction at advanced age stimulates FGF21 signalling, energy expenditure and browning of white adipose tissue. FEBS J 2021; 288:2257-2277. [PMID: 33089625 PMCID: PMC8048886 DOI: 10.1111/febs.15604] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 09/17/2020] [Accepted: 10/19/2020] [Indexed: 12/13/2022]
Abstract
Dietary protein restriction has been demonstrated to improve metabolic health under various conditions. However, the relevance of ageing and age-related decline in metabolic flexibility on the effects of dietary protein restriction has not been addressed. Therefore, we investigated the effect of short-term dietary protein restriction on metabolic health in young and aged mice. Young adult (3 months old) and aged (18 months old) C57Bl/6J mice were subjected to a 3-month dietary protein restriction. Outcome parameters included fibroblast growth factor 21 (FGF21) levels, muscle strength, glucose tolerance, energy expenditure (EE) and transcriptomics of brown and white adipose tissue (WAT). Here, we report that a low-protein diet had beneficial effects in aged mice by reducing some aspects of age-related metabolic decline. These effects were characterized by increased plasma levels of FGF21, browning of subcutaneous WAT, increased body temperature and EE, while no changes were observed in glucose homeostasis and insulin sensitivity. Moreover, the low-protein diet used in this study was well-tolerated in aged mice indicated by the absence of adverse effects on body weight, locomotor activity and muscle performance. In conclusion, our study demonstrates that a short-term reduction in dietary protein intake can impact age-related metabolic health alongside increased FGF21 signalling, without negatively affecting muscle function. These findings highlight the potential of protein restriction as a strategy to induce EE and browning of WAT in aged individuals.
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Affiliation(s)
- Marleen B. Dommerholt
- Sections of Molecular Metabolism and NutritionDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
| | - Maaike Blankestijn
- Sections of Molecular Metabolism and NutritionDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
| | - Marcel A. Vieira‐Lara
- Sections of Systems Medicine of Metabolism and SignalingDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
| | - Theo H. van Dijk
- Department of Laboratory MedicineUniversity Medical Center GroningenUniversity of Groningenthe Netherlands
| | - Henk Wolters
- Sections of Molecular Metabolism and NutritionDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
| | - Mirjam H. Koster
- Sections of Molecular Metabolism and NutritionDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
| | - Albert Gerding
- Sections of Systems Medicine of Metabolism and SignalingDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
- Department of Laboratory MedicineUniversity Medical Center GroningenUniversity of Groningenthe Netherlands
| | - Ronald P. van Os
- Mouse Clinic for Cancer and AgingCentral Animal FacilityUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
| | - Vincent W. Bloks
- Sections of Molecular Metabolism and NutritionDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
| | - Barbara M. Bakker
- Sections of Systems Medicine of Metabolism and SignalingDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
| | - Janine K. Kruit
- Sections of Molecular Metabolism and NutritionDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
| | - Johan W. Jonker
- Sections of Molecular Metabolism and NutritionDepartment of PediatricsUniversity Medical Center GroningenUniversity of GroningenGroningenthe Netherlands
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Ahmad B, Vohra MS, Saleemi MA, Serpell CJ, Fong IL, Wong EH. Brown/Beige adipose tissues and the emerging role of their secretory factors in improving metabolic health: The batokines. Biochimie 2021; 184:26-39. [PMID: 33548390 DOI: 10.1016/j.biochi.2021.01.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/22/2020] [Accepted: 01/28/2021] [Indexed: 12/12/2022]
Abstract
Brown and beige adipose tissues are the primary sites for adaptive non-shivering thermogenesis. Although they have been known principally for their thermogenic effects, in recent years, it has emerged that, just like white adipose tissue (WAT), brown and beige adipose tissues also play an important role in the regulation of metabolic health through secretion of various brown adipokines (batokines) in response to various physiological cues. These secreted batokines target distant organs and tissues such as the liver, heart, skeletal muscles, brain, WAT, and perform various local and systemic functions in an autocrine, paracrine, or endocrine manner. Brown and beige adipose tissues are therefore now receiving increasing levels of attention with respect to their effects on various other organs and tissues. Identification of novel secreted factors by these tissues may help in the discovery of drug candidates for the treatment of various metabolic disorders such as obesity, type-2 diabetes, skeletal deformities, cardiovascular diseases, dyslipidemia. In this review, we comprehensively describe the emerging secretory role of brown/beige adipose tissues and the metabolic effects of various brown/beige adipose tissues secreted factors on other organs and tissues in endocrine/paracrine manners, and as well as on brown/beige adipose tissue itself in an autocrine manner. This will provide insights into understanding the potential secretory role of brown/beige adipose tissues in improving metabolic health.
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Affiliation(s)
- Bilal Ahmad
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University Lakeside Campus, Subang Jaya, 47500, Malaysia
| | - Muhammad Sufyan Vohra
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University Lakeside Campus, Subang Jaya, 47500, Malaysia
| | - Mansab Ali Saleemi
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University Lakeside Campus, Subang Jaya, 47500, Malaysia
| | - Christopher J Serpell
- School of Physical Sciences, Ingram Building, University of Kent, Canterbury, Kent, CT2 7NH, United Kingdom
| | - Isabel Lim Fong
- Department of Paraclinical Sciences, Faculty of Medicine and Health Sciences Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan, Sarawak, 94300, Malaysia
| | - Eng Hwa Wong
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University Lakeside Campus, Subang Jaya, 47500, Malaysia.
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Brown Adipose Tissue and Its Role in Insulin and Glucose Homeostasis. Int J Mol Sci 2021; 22:ijms22041530. [PMID: 33546400 PMCID: PMC7913527 DOI: 10.3390/ijms22041530] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/21/2021] [Accepted: 02/01/2021] [Indexed: 12/15/2022] Open
Abstract
The increased worldwide prevalence of obesity, insulin resistance, and their related metabolic complications have prompted the scientific world to search for new possibilities to combat obesity. Brown adipose tissue (BAT), due to its unique protein uncoupling protein 1 (UPC1) in the inner membrane of the mitochondria, has been acknowledged as a promising approach to increase energy expenditure. Activated brown adipocytes dissipate energy, resulting in heat production. In other words, BAT burns fat and increases the metabolic rate, promoting a negative energy balance. Moreover, BAT alleviates metabolic complications like dyslipidemia, impaired insulin secretion, and insulin resistance in type 2 diabetes. The aim of this review is to explore the role of BAT in total energy expenditure, as well as lipid and glucose homeostasis, and to discuss new possible activators of brown adipose tissue in humans to treat obesity and metabolic disorders.
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47
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Jackson TC, Gorse K, Herrmann JR, Kochanek PM. Hippocampal and Prefrontal Cortical Brain Tissue Levels of Irisin and GDF15 Receptor Subunits in Children. Mol Neurobiol 2021; 58:2145-2157. [PMID: 33411243 PMCID: PMC7788542 DOI: 10.1007/s12035-020-02250-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/04/2020] [Indexed: 02/07/2023]
Abstract
Cold-stress hormones (CSHs) stimulate thermogenesis and have direct neuroprotective effects on the brain. The obligatory receptor components of two new CSHs (irisin and growth differentiation factor-15 [GDF15]) were recently discovered. Irisin binds integrin-αV/β5 heterodimers while GDF-15 binds to the orphan receptor glial cell-derived neurotrophic factor (GDNF) family receptor α-like (GFRAL). In addition, integrin-αV/β5 was just identified as the key receptor mediating Zika virus infection in the CNS. We measured integrin-αV, integrin-β5, and GFRAL protein levels across 78 high-quality human male/female brain tissues in infants, toddlers, preschoolers, adolescent, and adults-providing the most robust analysis to date on their levels in the human cortex and hippocampus. We report that integrin-αV was detected at all ages in the prefrontal cortex with levels greatest in adults. Integrin-αV was also detected in the hippocampus in all age groups. In contrast, integrin-β5 was detected in cortex and hippocampus largely restricted to infants. Co-expression of integrin-αV/β5 in the human infant hippocampus and cortex suggests the possibility that irisin has a more robust effect on the developing vs. the adult brain and may have implications for Zika virus infection in infants and young children.
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Affiliation(s)
- Travis C Jackson
- University of South Florida, Morsani College of Medicine, USF Health Heart Institute, MDD 0742, 560 Channelside Dr, Tampa, FL, 33602, USA.
- Department of Molecular Pharmacology & Physiology, University of South Florida, Morsani College of Medicine, 12901 Bruce B Downs BLVD, MDC 2532, Tampa, FL, 33612-4799, USA.
| | - Kiersten Gorse
- University of South Florida, Morsani College of Medicine, USF Health Heart Institute, MDD 0742, 560 Channelside Dr, Tampa, FL, 33602, USA
- Department of Molecular Pharmacology & Physiology, University of South Florida, Morsani College of Medicine, 12901 Bruce B Downs BLVD, MDC 2532, Tampa, FL, 33612-4799, USA
| | - Jeremy R Herrmann
- School of Medicine, Children's Hospital of Pittsburgh of UPMC, Safar Center for Resuscitation Research, University of Pittsburgh, John G. Rangos Research Center - 6th Floor, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Scaife Hall 3550 Terrace Street, Pittsburgh, PA, 15213, USA
| | - Patrick M Kochanek
- School of Medicine, Children's Hospital of Pittsburgh of UPMC, Safar Center for Resuscitation Research, University of Pittsburgh, John G. Rangos Research Center - 6th Floor, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Scaife Hall 3550 Terrace Street, Pittsburgh, PA, 15213, USA
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The chemokine CXCL14 is negatively associated with obesity and concomitant type-2 diabetes in humans. Int J Obes (Lond) 2021; 45:706-710. [PMID: 33414488 DOI: 10.1038/s41366-020-00732-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/23/2020] [Accepted: 12/09/2020] [Indexed: 11/09/2022]
Abstract
Chemokine (C-X-C motif) ligand-14 (CXCL14) levels are downregulated in experimental rodent models of obesity. Moreover, CXCL14 reportedly favors insulin sensitization in obese mice. Here we examined, for the first time, the role of CXCL14 in human obesity. We found that circulating levels of CXCL14 were decreased in patients with obesity and, especially, those with concomitant type-2 diabetes. CXCL14 levels were negatively associated with BMI and with indices of impaired glucose/insulin homeostasis. CXCL14 expression was decreased in subcutaneous adipose tissue from patients with obesity and type-2 diabetes. In adipose tissue, CXCL14 expression was negatively correlated with the expression of genes encoding pro-inflammatory molecules, and positively correlated with GLUT4 and adiponectin expression. In conclusion, obesity, and especially, concomitant type-2 diabetes are associated with abnormally decreased levels of CXCL14 in blood and impaired CXCL14 expression in adipose tissue. CXCL14 downregulation may be a novel biomarker of altered metabolism in obesity. CXCL14 also deserves further research as a therapeutic candidate.
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Chen HJ, Meng T, Gao PJ, Ruan CC. The Role of Brown Adipose Tissue Dysfunction in the Development of Cardiovascular Disease. Front Endocrinol (Lausanne) 2021; 12:652246. [PMID: 34113316 PMCID: PMC8185286 DOI: 10.3389/fendo.2021.652246] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/03/2021] [Indexed: 12/18/2022] Open
Abstract
Brown adipose tissue (BAT), consisted of brown adipocytes and stromal vascular fraction, which includes endothelial cells, lymphocytes, fibroblasts and stem cells, plays a vital role in regulating cardiovascular health and diseases. As a thermogenic organ, BAT can influence body through strengthening energy expenditure by promoting glucose and lipid metabolism. In addition, BAT is also an endocrine organ which is able to secret adipokines in an autocrine and/or paracrine fashion. BAT plays a protective role in cardiovascular system through attenuating cardiac remodeling and suppressing inflammatory response. In this review, we summarize the advances from the discovery of BAT to the present and provide an overview on the role of BAT dysfunction in cardiovascular diseases.
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Affiliation(s)
- Hong-Jin Chen
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai, China
- Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ting Meng
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Ping-Jin Gao
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai, China
- Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Cheng-Chao Ruan
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai, China
- Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
- *Correspondence: Cheng-Chao Ruan,
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50
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Aging and Immunometabolic Adaptations to Thermogenesis. Ageing Res Rev 2020; 63:101143. [PMID: 32810648 DOI: 10.1016/j.arr.2020.101143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/20/2020] [Accepted: 08/10/2020] [Indexed: 12/14/2022]
Abstract
Brown and subcutaneous adipose tissues play a key role in non-shivering thermogenesis both in mice and human, and their activation by adrenergic stimuli promotes energy expenditure, reduces adiposity, and protects against age-related metabolic diseases such as type 2 diabetes (T2D). Low-grade inflammation and insulin resistance characterize T2D. Even though the decline of thermogenic adipose tissues is well-established during ageing, the mechanisms by which this event affects immune system and contributes to the development of T2D is still poorly defined. It is emerging that activation of thermogenic adipose tissues promotes type 2 immunity skewing, limiting type 1 inflammation. Of note, metabolic substrates sustaining type 1 inflammation (e.g. glucose and succinate) are also used by activated adipocytes to promote thermogenesis. Keeping in mind this aspect, a nutrient competition between adipocytes and adipose tissue immune cell infiltrates could be envisaged. Herein, we reviewed the metabolic rewiring of adipocytes during thermogenesis in order to give important insight into the anti-inflammatory role of thermogenic adipose tissues and delineate how their decline during ageing may favor the setting of low-grade inflammatory states that predispose to type 2 diabetes in elderly. A brief description about the contribution of adipokines secreted by thermogenic adipocytes in modulation of immune cell activation is also provided. Finally, we have outlined experimental flow chart procedures and provided technical advices to investigate the physiological processes leading to thermogenic adipose tissue impairment that are behind the immunometabolic decline during aging.
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