1
|
Kassotis CD, Vom Saal FS, Babin PJ, Lagadic-Gossmann D, Le Mentec H, Blumberg B, Mohajer N, Legrand A, Munic Kos V, Martin-Chouly C, Podechard N, Langouët S, Touma C, Barouki R, Ji Kim M, Audouze K, Choudhury M, Shree N, Bansal A, Howard S, Heindel JJ. Obesity III: Obesogen assays: Limitations, strengths, and new directions. Biochem Pharmacol 2022; 199:115014. [PMID: 35393121 PMCID: PMC9050906 DOI: 10.1016/j.bcp.2022.115014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 12/11/2022]
Abstract
There is increasing evidence of a role for environmental contaminants in disrupting metabolic health in both humans and animals. Despite a growing need for well-understood models for evaluating adipogenic and potential obesogenic contaminants, there has been a reliance on decades-old in vitro models that have not been appropriately managed by cell line providers. There has been a quick rise in available in vitro models in the last ten years, including commercial availability of human mesenchymal stem cell and preadipocyte models; these models require more comprehensive validation but demonstrate real promise in improved translation to human metabolic health. There is also progress in developing three-dimensional and co-culture techniques that allow for the interrogation of a more physiologically relevant state. While diverse rodent models exist for evaluating putative obesogenic and/or adipogenic chemicals in a physiologically relevant context, increasing capabilities have been identified for alternative model organisms such as Drosophila, C. elegans, zebrafish, and medaka in metabolic health testing. These models have several appreciable advantages, including most notably their size, rapid development, large brood sizes, and ease of high-resolution lipid accumulation imaging throughout the organisms. They are anticipated to expand the capabilities of metabolic health research, particularly when coupled with emerging obesogen evaluation techniques as described herein.
Collapse
Affiliation(s)
- Christopher D Kassotis
- Institute of Environmental Health Sciences and Department of Pharmacology, Wayne State University, Detroit, MI 48202, United States.
| | - Frederick S Vom Saal
- Division of Biological Sciences, The University of Missouri, Columbia, MO 65211, United States
| | - Patrick J Babin
- Department of Life and Health Sciences, University of Bordeaux, INSERM, Pessac, France
| | - Dominique Lagadic-Gossmann
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Helene Le Mentec
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Bruce Blumberg
- Department of Developmental and Cell Biology, The University of California, Irvine, Irvine CA 92697, United States
| | - Nicole Mohajer
- Department of Developmental and Cell Biology, The University of California, Irvine, Irvine CA 92697, United States
| | - Antoine Legrand
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Vesna Munic Kos
- Department of Physiology and Pharmacology, Karolinska Institute, Solna, Sweden
| | - Corinne Martin-Chouly
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Normand Podechard
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Sophie Langouët
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Charbel Touma
- Univ Rennes, Inserm, EHESP, Irset (Research Institute for Environmental and Occupational Health) - UMR_S 1085, 35 000 Rennes, France
| | - Robert Barouki
- Department of Biochemistry, University of Paris, INSERM, Paris, France
| | - Min Ji Kim
- University of Sorbonne Paris Nord, Bobigny, INSERM U1124 (T3S), Paris, France
| | | | - Mahua Choudhury
- Department of Pharmaceutical Sciences, Texas A & M University, College Station, TX 77843, United States
| | - Nitya Shree
- Department of Pharmaceutical Sciences, Texas A & M University, College Station, TX 77843, United States
| | - Amita Bansal
- College of Health & Medicine, Australian National University, Canberra, ACT, 2611, Australia
| | - Sarah Howard
- Healthy Environment and Endocrine Disruptor Strategies, Commonweal, Bolinas, CA 92924, United States
| | - Jerrold J Heindel
- Healthy Environment and Endocrine Disruptor Strategies, Commonweal, Bolinas, CA 92924, United States
| |
Collapse
|
2
|
Dufau J, Shen JX, Couchet M, De Castro Barbosa T, Mejhert N, Massier L, Griseti E, Mouisel E, Amri EZ, Lauschke VM, Rydén M, Langin D. In vitro and ex vivo models of adipocytes. Am J Physiol Cell Physiol 2021; 320:C822-C841. [PMID: 33439778 DOI: 10.1152/ajpcell.00519.2020] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Adipocytes are specialized cells with pleiotropic roles in physiology and pathology. Several types of fat cells with distinct metabolic properties coexist in various anatomically defined fat depots in mammals. White, beige, and brown adipocytes differ in their handling of lipids and thermogenic capacity, promoting differences in size and morphology. Moreover, adipocytes release lipids and proteins with paracrine and endocrine functions. The intrinsic properties of adipocytes pose specific challenges in culture. Mature adipocytes float in suspension culture due to high triacylglycerol content and are fragile. Moreover, a fully differentiated state, notably acquirement of the unilocular lipid droplet of white adipocyte, has so far not been reached in two-dimensional culture. Cultures of mouse and human-differentiated preadipocyte cell lines and primary cells have been established to mimic white, beige, and brown adipocytes. Here, we survey various models of differentiated preadipocyte cells and primary mature adipocyte survival describing main characteristics, culture conditions, advantages, and limitations. An important development is the advent of three-dimensional culture, notably of adipose spheroids that recapitulate in vivo adipocyte function and morphology in fat depots. Challenges for the future include isolation and culture of adipose-derived stem cells from different anatomic location in animal models and humans differing in sex, age, fat mass, and pathophysiological conditions. Further understanding of fat cell physiology and dysfunction will be achieved through genetic manipulation, notably CRISPR-mediated gene editing. Capturing adipocyte heterogeneity at the single-cell level within a single fat depot will be key to understanding diversities in cardiometabolic parameters among lean and obese individuals.
Collapse
Affiliation(s)
- Jérémy Dufau
- Inserm, Institute of Metabolic and Cardiovascular Diseases (I2MC), UMR1297, Toulouse, France.,Faculté de Médecine, I2MC, UMR1297, Université de Toulouse, Université Paul Sabatier, Toulouse, France
| | - Joanne X Shen
- Karolinska Institutet, Department of Physiology and Pharmacology, Stockholm, Sweden
| | - Morgane Couchet
- Karolinska Institutet, Department of Medicine (H7), Stockholm, Sweden
| | | | - Niklas Mejhert
- Karolinska Institutet, Department of Medicine (H7), Stockholm, Sweden
| | - Lucas Massier
- Karolinska Institutet, Department of Medicine (H7), Stockholm, Sweden
| | - Elena Griseti
- Inserm, Institute of Metabolic and Cardiovascular Diseases (I2MC), UMR1297, Toulouse, France.,Faculté de Médecine, I2MC, UMR1297, Université de Toulouse, Université Paul Sabatier, Toulouse, France
| | - Etienne Mouisel
- Inserm, Institute of Metabolic and Cardiovascular Diseases (I2MC), UMR1297, Toulouse, France.,Faculté de Médecine, I2MC, UMR1297, Université de Toulouse, Université Paul Sabatier, Toulouse, France
| | | | - Volker M Lauschke
- Karolinska Institutet, Department of Physiology and Pharmacology, Stockholm, Sweden
| | - Mikael Rydén
- Karolinska Institutet, Department of Medicine (H7), Stockholm, Sweden
| | - Dominique Langin
- Inserm, Institute of Metabolic and Cardiovascular Diseases (I2MC), UMR1297, Toulouse, France.,Faculté de Médecine, I2MC, UMR1297, Université de Toulouse, Université Paul Sabatier, Toulouse, France.,Toulouse University Hospitals, Department of Biochemistry, Toulouse, France
| |
Collapse
|
3
|
Klusóczki Á, Veréb Z, Vámos A, Fischer-Posovszky P, Wabitsch M, Bacso Z, Fésüs L, Kristóf E. Differentiating SGBS adipocytes respond to PPARγ stimulation, irisin and BMP7 by functional browning and beige characteristics. Sci Rep 2019; 9:5823. [PMID: 30967578 PMCID: PMC6456729 DOI: 10.1038/s41598-019-42256-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 03/26/2019] [Indexed: 12/24/2022] Open
Abstract
Brown and beige adipocytes are enriched in mitochondria with uncoupling protein-1 (UCP1) to generate heat instead of ATP contributing to healthy energy balance. There are few human cellular models to reveal regulatory networks in adipocyte browning and key targets for enhancing thermogenesis in obesity. The Simpson-Golabi-Behmel syndrome (SGBS) preadipocyte line has been a useful tool to study human adipocyte biology. Here we report that SGBS cells, which are comparable to subcutaneous adipose-derived stem cells, carry an FTO risk allele. Upon sustained PPARγ stimulation or irisin (a myokine released in response to exercise) treatment, SGBS cells differentiated into beige adipocytes exhibiting multilocular lipid droplets, high UCP1 content with induction of typical browning genes (Cidea, Elovl3) and the beige marker Tbx1. The autocrine mediator BMP7 led to moderate browning with the upregulation of the classical brown marker Zic1 instead of Tbx1. Thermogenesis potential resulted from PPARγ stimulation, irisin and BMP7 can be activated in UCP1-dependent and the beige specific, creatine phosphate cycle mediated way. The beige phenotype, maintained under long-term (28 days) conditions, was partially reversed by withdrawal of PPARγ ligand. Thus, SGBS cells can serve as a cellular model for both white and sustainable beige adipocyte differentiation and function.
Collapse
Affiliation(s)
- Ágnes Klusóczki
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zoltán Veréb
- Regenerative Medicine and Cellular Pharmacology Research Laboratory, Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - Attila Vámos
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | | | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, University Medical Center Ulm, Ulm, Germany
| | - Zsolt Bacso
- Department of Biophysics and Cell Biology, Faculties of Medicine and Pharmacology, University of Debrecen, Debrecen, Hungary
| | - László Fésüs
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
| | - Endre Kristóf
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
| |
Collapse
|
4
|
Abstract
Brown adipocytes are the key cell type in brown adipose tissue (BAT) that express the genes required for heat production through the process of thermogenesis. Brown adipocyte cell culture models are important for researching the molecular pathways that control cell autonomous processes. In vitro tools for the study of brown adipocytes include BAT explant cultures and BAT primary cultures that are first proliferated and then differentiated. A number of stable brown preadipocyte cell lines have been generated by the expression transforming factors such as SV40 T antigen. The application of these cell lines reduces the requirement for animal tissue which is needed for primary culture and explants. Furthermore, brown adipocyte cell lines that effectively recapitulate the properties of brown adipocytes permit large-scale experimental procedures that are generally unfeasible with primary cultures that undergo a restricted number of cell divisions. Cell lines are valuable for applications such as large-scale endogenous protein expression, ChIP assay, and procedures requiring antibiotic selection over several cell divisions including stable exogenous gene expression and CRISR/Cas9 gene editing.
Collapse
Affiliation(s)
- Mark Christian
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, UK.
| |
Collapse
|
5
|
Yao X, Dani V, Dani C. Human Pluripotent Stem Cells: A Relevant Model to Identify Pathways Governing Thermogenic Adipocyte Generation. Front Endocrinol (Lausanne) 2019; 10:932. [PMID: 32038489 PMCID: PMC6990109 DOI: 10.3389/fendo.2019.00932] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/20/2019] [Indexed: 01/19/2023] Open
Abstract
Brown and brown-like adipocytes (BAs) are promising cell targets to counteract obesity thanks to their potential to drain and oxidize circulating glucose and triglycerides. However, the scarcity of BAs in human adults is a major limitation for energy expenditure based therapies. Enhanced characterization of BA progenitor cells (BAPs) and identification of critical pathways regulating their generation and differentiation into mature BAs would be an effective way to increase the BA mass. The identification of molecular mechanisms involved in the generation of thermogenic adipocytes is progressing substantially in mice. Much less is known in humans, thus highlighting the need for an in vitro model of human adipocyte development. Pluripotent stem cells (PSCs), i.e., embryonic stem cells and induced pluripotent stem cells, help gain insight into the different phases in the development of multiple cell types. We will discuss the capacity of human PSCs to differentiate into BAs in this review. Several groups, including ours, have reported low spontaneous adipocyte generation from PSCs. However, factors governing the differentiation of induced pluripotent stem cell-derived BA progenitors cells were recently identified, and the TGFβ signaling pathway has a pivotal role. The development of new relevant methods, such as the differentiation of hPSC-BAPs into 3D adipospheres to better mimick the lobular structure of human adipose tissue, will also be discussed. Differentiation of human PSCs into thermogenic adipocytes at high frequency provides an opportunity to characterize new targets for anti-obesity therapy.
Collapse
|
6
|
Evaluation and optimization of differentiation conditions for human primary brown adipocytes. Sci Rep 2018; 8:5304. [PMID: 29593245 PMCID: PMC5871774 DOI: 10.1038/s41598-018-23700-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 03/19/2018] [Indexed: 12/15/2022] Open
Abstract
As an effective way to improve energy expenditure, increasing the mass and activity of brown adipose tissue (BAT) has become a promising treatment for obesity and its associated disorders. Many efforts have been made to promote brown adipogenesis and increase the thermogenic capacity of brown adipose cells (BACs). The present culture schemes for human BAC differentiation are mostly derived from white adipocyte differentiation schemes. To solve this issue, we compared the adipogenic and thermogenic effects of various components on human BAC differentiation and optimized their concentrations as well as the culture time for BAC differentiation. In this study, we found that the induction factors did not show a dose-dependent promotion of brown adipogenesis or thermogenic capacity. The higher differentiation levels did not inevitably result in higher BAT-specific gene expression levels or increased β3-receptor agonist sensitivity. As an important element of culture medium, triiodothyronine was found to be essential for differentiation and metabolic property maintenance. Furthermore, compared with other reported methods, this protocol induced a specific intrinsic differentiation program. Our study provides not only an optimized method for human BAC differentiation but also a cell model with good differentiation and thermogenic capacity for brown adipose research.
Collapse
|
7
|
Ahmadian M, Liu S, Reilly SM, Hah N, Fan W, Yoshihara E, Jha P, De Magalhaes Filho CD, Jacinto S, Gomez AV, Dai Y, Yu RT, Liddle C, Atkins AR, Auwerx J, Saltiel AR, Downes M, Evans RM. ERRγ Preserves Brown Fat Innate Thermogenic Activity. Cell Rep 2018; 22:2849-2859. [PMID: 29539415 PMCID: PMC5884669 DOI: 10.1016/j.celrep.2018.02.061] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 01/11/2018] [Accepted: 02/15/2018] [Indexed: 12/25/2022] Open
Abstract
Brown adipose tissue (BAT) adaptively transfers energy from glucose and fat into heat by inducing a gene network that uncouples mitochondrial electron transport. However, the innate transcription factors that enable the rapid adaptive response of BAT are unclear. Here, we identify estrogen-related receptor gamma (ERRγ) as a critical factor for maintaining BAT identity. ERRγ is selectively expressed in BAT versus WAT, in which, in the absence of PGC1α, it drives a signature transcriptional network of thermogenic and oxidative genes in the basal (i.e., thermoneutral) state. Mice lacking ERRγ in adipose tissue (ERRγKO mice) display marked downregulation of BAT-selective genes that leads to a pronounced whitening of BAT. Consistent with the transcriptional changes, the thermogenic capacity of ERRγKO mice is severely blunted, such that they fail to survive an acute cold challenge. These findings reveal a role for ERRγ as a critical thermoneutral maintenance factor required to prime BAT for thermogenesis.
Collapse
Affiliation(s)
- Maryam Ahmadian
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Sihao Liu
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Shannon M Reilly
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093-0757, USA
| | - Nasun Hah
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Weiwei Fan
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Eiji Yoshihara
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Pooja Jha
- Laboratory of Integrative and Systems Physiology, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | | | - Sandra Jacinto
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Andrew V Gomez
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093-0757, USA
| | - Yang Dai
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Ruth T Yu
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Christopher Liddle
- Storr Liver Centre, The Westmead Institute for Medical Research and Sydney Medical School, University of Sydney, Westmead, NSW 2145, Australia
| | - Annette R Atkins
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Johan Auwerx
- Laboratory of Integrative and Systems Physiology, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Alan R Saltiel
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093-0757, USA
| | - Michael Downes
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
| | - Ronald M Evans
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA; Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
| |
Collapse
|
8
|
Guénantin AC, Briand N, Capel E, Dumont F, Morichon R, Provost C, Stillitano F, Jeziorowska D, Siffroi JP, Hajjar RJ, Fève B, Hulot JS, Collas P, Capeau J, Vigouroux C. Functional Human Beige Adipocytes From Induced Pluripotent Stem Cells. Diabetes 2017; 66:1470-1478. [PMID: 28270520 PMCID: PMC5440013 DOI: 10.2337/db16-1107] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 03/02/2017] [Indexed: 12/25/2022]
Abstract
Activation of thermogenic beige adipocytes has recently emerged as a promising therapeutic target in obesity and diabetes. Relevant human models for beige adipocyte differentiation are essential to implement such therapeutic strategies. We report a straightforward and efficient protocol to generate functional human beige adipocytes from human induced pluripotent stem cells (hiPSCs). Without overexpression of exogenous adipogenic genes, our method recapitulates an adipogenic developmental pathway through successive mesodermal and adipogenic progenitor stages. hiPSC-derived adipocytes are insulin sensitive and display beige-specific markers and functional properties, including upregulation of thermogenic genes, increased mitochondrial content, and increased oxygen consumption upon activation with cAMP analogs. Engraftment of hiPSC-derived adipocytes in mice produces well-organized and vascularized adipose tissue, capable of β-adrenergic-responsive glucose uptake. Our model of human beige adipocyte development provides a new and scalable tool for disease modeling and therapeutic screening.
Collapse
Affiliation(s)
- Anne-Claire Guénantin
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMR_S938, Centre de Recherche Saint-Antoine, Institute of Cardiometabolism and Nutrition, Paris, France
- Metabolic Research Laboratories, Addenbrooke's Treatment Centre, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, U.K
| | - Nolwenn Briand
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMR_S938, Centre de Recherche Saint-Antoine, Institute of Cardiometabolism and Nutrition, Paris, France
| | - Emilie Capel
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMR_S938, Centre de Recherche Saint-Antoine, Institute of Cardiometabolism and Nutrition, Paris, France
| | - Florent Dumont
- Institut Cochin, Université Paris Descartes, INSERM U1016, Paris, France
| | - Romain Morichon
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMR_S938, Centre de Recherche Saint-Antoine, Institute of Cardiometabolism and Nutrition, Paris, France
| | - Claire Provost
- Plateforme LIMP, UMS28 Phénotypage du petit animal, Université Pierre et Marie Curie, Paris, France
| | - Francesca Stillitano
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Dorota Jeziorowska
- Sorbonne Universités, Université Pierre et Marie Curie, UMR_S1166, Institute of Cardiometabolism and Nutrition, France
| | - Jean-Pierre Siffroi
- Sorbonne Universités, Université Pierre et Marie Curie, Assistance Publique-Hôspitaux de Paris, Service de Génétique et d'Embryologie Médicales, Hôpital Trousseau, Paris, France
| | - Roger J Hajjar
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Bruno Fève
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMR_S938, Centre de Recherche Saint-Antoine, Institute of Cardiometabolism and Nutrition, Paris, France
- Assistance Publique-Hôspitaux de Paris, Service d'Endocrinologie, Hôpital Saint-Antoine, Paris, France
| | - Jean-Sébastien Hulot
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY
- Sorbonne Universités, Université Pierre et Marie Curie, UMR_S1166, Institute of Cardiometabolism and Nutrition, France
| | - Philippe Collas
- Department of Molecular Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
- Norwegian Center for Stem Cell Research, Oslo University Hospital, Oslo, Norway
| | - Jacqueline Capeau
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMR_S938, Centre de Recherche Saint-Antoine, Institute of Cardiometabolism and Nutrition, Paris, France
| | - Corinne Vigouroux
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMR_S938, Centre de Recherche Saint-Antoine, Institute of Cardiometabolism and Nutrition, Paris, France
- Assistance Publique-Hôspitaux de Paris, Service d'Endocrinologie, Hôpital Saint-Antoine, Paris, France
- Assistance Publique-Hôspitaux de Paris, Laboratoire Commun de Biologie et Génétique Moléculaires, Hôpital Saint-Antoine, Paris, France
| |
Collapse
|
9
|
Angiopoietin-like protein 8 (ANGPTL8) in pregnancy: a brown adipose tissue-derived endocrine factor with a potential role in fetal growth. Transl Res 2016; 178:1-12. [PMID: 27469268 DOI: 10.1016/j.trsl.2016.06.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/27/2016] [Accepted: 06/30/2016] [Indexed: 12/21/2022]
Abstract
Angiopoietin-like protein 8 (ANGPTL8), a protein implicated in lipid and glucose homeostasis, is present only in mammals, suggesting that it is involved in processes unique to these vertebrates such as pregnancy and homeothermy. We explored the role of ANGPTL8 in maternal-fetal crosstalk and its relationship with newborn adiposity. In a longitudinal analysis of healthy pregnant women, ANGPTL8 levels decreased progressively during pregnancy although remained higher than levels in the postpartum period. In a cross-sectional observational study of women with or without gestational diabetes mellitus (GDM), and their offspring, ANGPTL8 levels were higher in venous cord blood than those in maternal blood and were significantly lower in GDM patients than those in healthy women. Infants small for gestational age and with low-fat mass had the highest ANGPTL8 cord blood levels. Studies in vitro revealed that ANGPTL8 was secreted by brown adipocytes and its expression was increased in experimental models of white-to-brown fat conversion. In addition, ANGPTL8 induced the expression of markers of brown adipocytes. The high levels of ANGPTL8 found in fetal life together with its relationship with newborn adiposity and brown adipose tissue point to ANGPTL8 as a potential new player in the modulation of the thermogenic machinery during the fetal-neonatal transition.
Collapse
|
10
|
Seiler SE, Xu D, Ho JP, Lo KA, Buehrer BM, Ludlow YJW, Kovalik JP, Sun L. Characterization of a primary brown adipocyte culture system derived from human fetal interscapular fat. Adipocyte 2015; 4:303-10. [PMID: 26451287 DOI: 10.1080/21623945.2015.1042192] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 04/08/2015] [Accepted: 04/09/2015] [Indexed: 12/24/2022] Open
Abstract
Brown fat has gained widespread attention as a potential therapeutic target to treat obesity and associated metabolic disorders. Indeed, the anti-obesity potential of multiple targets to stimulate both brown adipocyte differentiation and recruitment have been verified in rodent models. However, their therapeutic potential in humans is unknown due to the lack of a human primary brown adipocyte cell culture system. Likewise, the lack of a well-characterized human model has limited the discovery of novel targets for the activation of human brown fat. To address this current need, we aimed to identify and describe the first primary brown adipocyte cell culture system from human fetal interscapular brown adipose tissue. Pre-adipocytes isolated from non-viable human fetal interscapular tissue were expanded and cryopreserved. Cells were then thawed and plated alongside adult human subcutaneous and omental pre-adipocytes for subsequent differentiation and phenotypic characterization. Interscapular pre-adipocytes in cell culture differentiated into mature adipocytes that were morphologically indistinguishable from the adult white depots. Throughout differentiation, cultured human fetal interscapular adipocytes demonstrated increased expression of classical brown fat markers compared to subcutaneous and omental cells. Further, functional analysis revealed an elevation in fatty acid oxidation as well as maximal and uncoupled oxygen consumption in interscapular brown adipocytes compared to white control cells. These data collectively identify the brown phenotype of these cells. Thus, our primary cell culture system derived from non-viable human fetal interscapular brown adipose tissue provides a valuable tool for the study of human brown adipocyte biology and for the development of anti-obesity therapeutics.
Collapse
|
11
|
Ceperuelo-Mallafré V, Ejarque M, Duran X, Pachón G, Vázquez-Carballo A, Roche K, Núñez-Roa C, Garrido-Sánchez L, Tinahones FJ, Vendrell J, Fernández-Veledo S. Zinc-α2-Glycoprotein Modulates AKT-Dependent Insulin Signaling in Human Adipocytes by Activation of the PP2A Phosphatase. PLoS One 2015; 10:e0129644. [PMID: 26068931 PMCID: PMC4465909 DOI: 10.1371/journal.pone.0129644] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 05/07/2015] [Indexed: 11/30/2022] Open
Abstract
Objective Evidence from mouse models suggests that zinc-α2-glycoprotein (ZAG) is a novel anti-obesity adipokine. In humans, however, data are controversial and its physiological role in adipose tissue (AT) remains unknown. Here we explored the molecular mechanisms by which ZAG regulates carbohydrate metabolism in human adipocytes. Methods ZAG action on glucose uptake and insulin action was analyzed. β1 and β2-adrenoreceptor (AR) antagonists and siRNA targeting PP2A phosphatase were used to examine the mechanisms by which ZAG modulates insulin sensitivity. Plasma levels of ZAG were measured in a lean patient cohort stratified for HOMA-IR. Results ZAG treatment increased basal glucose uptake, correlating with an increase in GLUT expression, but induced insulin resistance in adipocytes. Pretreatment of adipocytes with propranolol and a specific β1-AR antagonist demonstrated that ZAG effects on basal glucose uptake and GLUT4 expression are mediated via β1-AR, whereas inhibition of insulin action is dependent on β2-AR activation. ZAG treatment correlated with an increase in PP2A activity. Silencing of the PP2A catalytic subunit abrogated the negative effect of ZAG on insulin-stimulated AKT phosphorylation and glucose uptake but not on GLUT4 expression and basal glucose uptake. ZAG circulating levels were unchanged in a lean patient cohort stratified for HOMA-IR. Neither glucose nor insulin was associated with plasma ZAG. Conclusions ZAG inhibits insulin-induced glucose uptake in human adipocytes by impairing insulin signaling at the level of AKT in a β2-AR- and PP2A-dependent manner.
Collapse
Affiliation(s)
- Victòria Ceperuelo-Mallafré
- Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Miriam Ejarque
- Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Xavier Duran
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Gisela Pachón
- Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Ana Vázquez-Carballo
- Departament of Biochemistry and Molecular Biology II, School of Pharmacy, Complutense University, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Madrid, Spain
| | - Kelly Roche
- Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Catalina Núñez-Roa
- Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Lourdes Garrido-Sánchez
- Hospital Universitario Virgen de la Victoria, Instituto de Investigaciones Biomédicas de Málaga, Málaga, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Francisco J. Tinahones
- Hospital Universitario Virgen de la Victoria, Instituto de Investigaciones Biomédicas de Málaga, Málaga, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Joan Vendrell
- Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
- * E-mail: (JV); (SFV)
| | - Sonia Fernández-Veledo
- Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
- * E-mail: (JV); (SFV)
| |
Collapse
|
12
|
Guennoun A, Kazantzis M, Thomas R, Wabitsch M, Tews D, Seetharama Sastry K, Abdelkarim M, Zilberfarb V, Strosberg AD, Chouchane L. Comprehensive molecular characterization of human adipocytes reveals a transient brown phenotype. J Transl Med 2015; 13:135. [PMID: 25925588 PMCID: PMC4438513 DOI: 10.1186/s12967-015-0480-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 03/31/2015] [Indexed: 12/30/2022] Open
Abstract
Background Functional brown adipose tissue (BAT), involved in energy expenditure, has recently been detected in substantial amounts in adults. Formerly overlooked BAT has now become an attractive anti-obesity target. Methods and results Molecular characterization of human brown and white adipocytes, using a myriad of techniques including high-throughput RNA sequencing and functional assays, showed that PAZ6 and SW872 cells exhibit classical molecular and phenotypic markers of brown and white adipocytes, respectively. However, the pre-adipocyte cell line SGBS presents a versatile phenotype. A transit expression of classical brown markers such as UCP1 and PPARγ peaked and declined at day 28 post-differentiation initiation. Conversely, white adipocyte markers, including Tcf21, showed reciprocal behavior. Interestingly, leptin levels peaked at day 28 whereas the highest adiponectin mRNA levels were detected at day 14 of differentiation. Phenotypic analysis of the abundance and shape of lipid droplets were consistent with the molecular patterns. Accordingly, the oxidative capacity of SGBS adipocytes peaked on differentiation day 14 and declined progressively towards differentiation day 28. Conclusions Our studies have unveiled a new phenotype of human adipocytes, providing a tool to identify molecular gene expression patterns and pathways involved in the conversion between white and brown adipocytes. Electronic supplementary material The online version of this article (doi:10.1186/s12967-015-0480-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Andrea Guennoun
- Laboratory of Genetic Medicine & Immunology, Weill Cornell Medical College in Qatar, P.O. Box 24144, Doha, Qatar.
| | - Melissa Kazantzis
- Center for Diabetes and Metabolic Diseases, The Scripps Research Institute, Florida, USA.
| | - Remy Thomas
- Laboratory of Genetic Medicine & Immunology, Weill Cornell Medical College in Qatar, P.O. Box 24144, Doha, Qatar.
| | - Martin Wabitsch
- Department of Paediatrics and Adolescent Medicine, Division of Pediatric Endocrinology and Diabetology, Ulm, Germany.
| | - Daniel Tews
- Department of Paediatrics and Adolescent Medicine, Division of Pediatric Endocrinology and Diabetology, Ulm, Germany.
| | - Konduru Seetharama Sastry
- Laboratory of Genetic Medicine & Immunology, Weill Cornell Medical College in Qatar, P.O. Box 24144, Doha, Qatar.
| | | | - Vladimir Zilberfarb
- Institut Cochin INSERM U1016, Université Paris 7-Denis-Diderot, Paris, France.
| | | | - Lotfi Chouchane
- Laboratory of Genetic Medicine & Immunology, Weill Cornell Medical College in Qatar, P.O. Box 24144, Doha, Qatar.
| |
Collapse
|
13
|
Beranger GE, Karbiener M, Barquissau V, Pisani DF, Scheideler M, Langin D, Amri EZ. In vitro brown and “brite”/“beige” adipogenesis: Human cellular models and molecular aspects. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1831:905-14. [DOI: 10.1016/j.bbalip.2012.11.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 10/31/2012] [Accepted: 11/02/2012] [Indexed: 11/30/2022]
|