1
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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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2
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Hagberg CE, Spalding KL. White adipocyte dysfunction and obesity-associated pathologies in humans. Nat Rev Mol Cell Biol 2024; 25:270-289. [PMID: 38086922 DOI: 10.1038/s41580-023-00680-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2023] [Indexed: 02/10/2024]
Abstract
The prevalence of obesity and associated chronic diseases continues to increase worldwide, negatively impacting on societies and economies. Whereas the association between excess body weight and increased risk for developing a multitude of diseases is well established, the initiating mechanisms by which weight gain impairs our metabolic health remain surprisingly contested. In order to better address the myriad of disease states associated with obesity, it is essential to understand adipose tissue dysfunction and develop strategies for reinforcing adipocyte health. In this Review we outline the diverse physiological functions and pathological roles of human white adipocytes, examining our current knowledge of why white adipocytes are vital for systemic metabolic control, yet poorly adapted to our current obesogenic environment.
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Affiliation(s)
- Carolina E Hagberg
- Division of Cardiovascular Medicine, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Kirsty L Spalding
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden.
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3
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Vali A, Dalle H, Loubaresse A, Gilleron J, Havis E, Garcia M, Beaupère C, Denis C, Roblot N, Poussin K, Ledent T, Bouillet B, Cormont M, Tanti JF, Capeau J, Vatier C, Fève B, Grosfeld A, Moldes M. Adipocyte Glucocorticoid Receptor Activation With High Glucocorticoid Doses Impairs Healthy Adipose Tissue Expansion by Repressing Angiogenesis. Diabetes 2024; 73:211-224. [PMID: 37963392 DOI: 10.2337/db23-0165] [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: 02/27/2023] [Accepted: 10/31/2023] [Indexed: 11/16/2023]
Abstract
In humans, glucocorticoids (GCs) are commonly prescribed because of their anti-inflammatory and immunosuppressive properties. However, high doses of GCs often lead to side effects, including diabetes and lipodystrophy. We recently reported that adipocyte glucocorticoid receptor (GR)-deficient (AdipoGR-KO) mice under corticosterone (CORT) treatment exhibited a massive adipose tissue (AT) expansion associated with a paradoxical improvement of metabolic health compared with control mice. However, whether GR may control adipose development remains unclear. Here, we show a specific induction of hypoxia-inducible factor 1α (HIF-1α) and proangiogenic vascular endothelial growth factor A (VEGFA) expression in GR-deficient adipocytes of AdipoGR-KO mice compared with control mice, together with an increased adipose vascular network, as assessed by three-dimensional imaging. GR activation reduced HIF-1α recruitment to the Vegfa promoter resulting from Hif-1α downregulation at the transcriptional and posttranslational levels. Importantly, in CORT-treated AdipoGR-KO mice, the blockade of VEGFA by a soluble decoy receptor prevented AT expansion and the healthy metabolic phenotype. Finally, in subcutaneous AT from patients with Cushing syndrome, higher VEGFA expression was associated with a better metabolic profile. Collectively, these results highlight that adipocyte GR negatively controls AT expansion and metabolic health through the downregulation of the major angiogenic effector VEGFA and inhibition of vascular network development. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Anna Vali
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Héloïse Dalle
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Alya Loubaresse
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Jérôme Gilleron
- Université Côte d'Azur, INSERM, C3M, Team Cellular and Molecular Pathophysiology of Obesity, Nice, France
| | - Emmanuelle Havis
- Sorbonne Université, CNRS, INSERM, Laboratoire de Biologie du Développement, Institut Biologie Paris Seine, Paris, France
| | - Marie Garcia
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Carine Beaupère
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Clémentine Denis
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Natacha Roblot
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Karine Poussin
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Tatiana Ledent
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
| | - Benjamin Bouillet
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Mireille Cormont
- Université Côte d'Azur, INSERM, C3M, Team Cellular and Molecular Pathophysiology of Obesity, Nice, France
| | - Jean-François Tanti
- Université Côte d'Azur, INSERM, C3M, Team Cellular and Molecular Pathophysiology of Obesity, Nice, France
| | - Jacqueline Capeau
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Camille Vatier
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Assistance Publique des Hôpitaux de Paris, Hôpital Saint-Antoine, Service Endocrinologie, CRMR PRISIS, Paris, France
| | - Bruno Fève
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Assistance Publique des Hôpitaux de Paris, Hôpital Saint-Antoine, Service Endocrinologie, CRMR PRISIS, Paris, France
| | - Alexandra Grosfeld
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
| | - Marthe Moldes
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, Paris, France
- Sorbonne Université, INSERM, Institute of CardioMetabolism and Nutrition, Paris, France
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4
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Chaube B, Citrin KM, Sahraei M, Singh AK, de Urturi DS, Ding W, Pierce RW, Raaisa R, Cardone R, Kibbey R, Fernández-Hernando C, Suárez Y. Suppression of angiopoietin-like 4 reprograms endothelial cell metabolism and inhibits angiogenesis. Nat Commun 2023; 14:8251. [PMID: 38086791 PMCID: PMC10716292 DOI: 10.1038/s41467-023-43900-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Angiopoietin-like 4 (ANGPTL4) is known to regulate various cellular and systemic functions. However, its cell-specific role in endothelial cells (ECs) function and metabolic homeostasis remains to be elucidated. Here, using endothelial-specific Angptl4 knock-out mice (Angptl4iΔEC), and transcriptomics and metabolic flux analysis, we demonstrate that ANGPTL4 is required for maintaining EC metabolic function vital for vascular permeability and angiogenesis. Knockdown of ANGPTL4 in ECs promotes lipase-mediated lipoprotein lipolysis, which results in increased fatty acid (FA) uptake and oxidation. This is also paralleled by a decrease in proper glucose utilization for angiogenic activation of ECs. Mice with endothelial-specific deletion of Angptl4 showed decreased pathological neovascularization with stable vessel structures characterized by increased pericyte coverage and reduced permeability. Together, our study denotes the role of endothelial-ANGPTL4 in regulating cellular metabolism and angiogenic functions of EC.
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Affiliation(s)
- Balkrishna Chaube
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, CT, USA
| | - Kathryn M Citrin
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, CT, USA
- Department of Cellular & Molecular Physiology, Yale University, New Haven, CT, USA
| | - Mahnaz Sahraei
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Abhishek K Singh
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA
| | - Diego Saenz de Urturi
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, CT, USA
| | - Wen Ding
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Richard W Pierce
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT, USA
| | - Raaisa Raaisa
- Department of Internal Medicine, Yale University, New Haven, CT, USA
| | - Rebecca Cardone
- Department of Internal Medicine, Yale University, New Haven, CT, USA
| | - Richard Kibbey
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, CT, USA
- Department of Cellular & Molecular Physiology, Yale University, New Haven, CT, USA
- Department of Internal Medicine, Yale University, New Haven, CT, USA
| | - Carlos Fernández-Hernando
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, CT, USA
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Yajaira Suárez
- Department of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA.
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, USA.
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, CT, USA.
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA.
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5
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Liu S, Benito-Martin A, Pelissier Vatter FA, Hanif SZ, Liu C, Bhardwaj P, Sethupathy P, Farghli AR, Piloco P, Paik P, Mushannen M, Dong X, Otterburn DM, Cohen L, Bareja R, Krumsiek J, Cohen-Gould L, Calto S, Spector JA, Elemento O, Lyden DC, Brown KA. Breast adipose tissue-derived extracellular vesicles from obese women alter tumor cell metabolism. EMBO Rep 2023; 24:e57339. [PMID: 37929643 DOI: 10.15252/embr.202357339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/07/2023] Open
Abstract
Breast adipose tissue is an important contributor to the obesity-breast cancer link. Extracellular vesicles (EVs) are nanosized particles containing selective cargo, such as miRNAs, that act locally or circulate to distant sites to modulate target cell functions. Here, we find that long-term education of breast cancer cells with EVs obtained from breast adipose tissue of women who are overweight or obese (O-EVs) results in increased proliferation. RNA-seq analysis of O-EV-educated cells demonstrates increased expression of genes involved in oxidative phosphorylation, such as ATP synthase and NADH: ubiquinone oxidoreductase. O-EVs increase respiratory complex protein expression, mitochondrial density, and mitochondrial respiration in tumor cells. The mitochondrial complex I inhibitor metformin reverses O-EV-induced cell proliferation. Several miRNAs-miR-155-5p, miR-10a-3p, and miR-30a-3p-which promote mitochondrial respiration and proliferation, are enriched in O-EVs relative to EVs from lean women. O-EV-induced proliferation and mitochondrial activity are associated with stimulation of the Akt/mTOR/P70S6K pathway, and are reversed upon silencing of P70S6K. This study reveals a new facet of the obesity-breast cancer link with human breast adipose tissue-derived EVs causing metabolic reprogramming of breast cancer cells.
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Affiliation(s)
- Shuchen Liu
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Department of Breast Surgery, The Second Hospital of Shandong University, Jinan, China
| | - Alberto Benito-Martin
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Facultad de Medicina, Unidad de Investigación Biomédica, Universidad Alfonso X el Sabio (UAX), Madrid, Spain
| | - Fanny A Pelissier Vatter
- Departments of Pediatrics and Cell and Developmental Biology, Weill Cornell Medicine, New York, NY, USA
| | - Sarah Z Hanif
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Catherine Liu
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Priya Bhardwaj
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Praveen Sethupathy
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Alaa R Farghli
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Phoebe Piloco
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Paul Paik
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Malik Mushannen
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Weill Cornell Medicine - Qatar, Doha, Qatar
| | - Xue Dong
- Department of Surgery, Weill Cornell Medicine, New York, NY, USA
| | | | - Leslie Cohen
- Department of Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Rohan Bareja
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Jan Krumsiek
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Leona Cohen-Gould
- Department of Biochemistry, Weill Cornell Medicine, New York, NY, USA
- Core Laboratories Center, Weill Cornell Medicine, New York, NY, USA
| | - Samuel Calto
- Department of Cognitive Science, University of California San Diego, La Jolla, CA, USA
| | - Jason A Spector
- Department of Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Olivier Elemento
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - David C Lyden
- Departments of Pediatrics and Cell and Developmental Biology, Weill Cornell Medicine, New York, NY, USA
| | - Kristy A Brown
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS, USA
- University of Kansas Cancer Center, Kansas City, KS, USA
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6
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Lee HJ, Jin BY, Park MR, Kim NH, Seo KS, Jeong YT, Wada T, Lee JS, Choi SH, Kim DH. Inhibition of adipose tissue angiogenesis prevents rebound weight gain after caloric restriction in mice fed a high-fat diet. Life Sci 2023; 332:122101. [PMID: 37730110 DOI: 10.1016/j.lfs.2023.122101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 08/30/2023] [Accepted: 09/15/2023] [Indexed: 09/22/2023]
Abstract
AIMS We investigated whether modulation of white adipose tissue (WAT) vasculature regulates rebound weight gain (RWG) after caloric restriction (CR) in mice fed a high-fat diet (HFD). MAIN METHODS We compared changes in energy balance, hypothalamic neuropeptide gene expression, and characteristics of WAT by RT-qPCR, ELISA, immunohistochemistry, and adipose-derived stromal vascular fraction spheroid sprouting assay in obese mice fed a HFD ad libitum (HFD-AL), mice under 40 % CR for 3 or 4 weeks, mice fed HFD-AL for 3 days after CR (CRAL), and CRAL mice treated with TNP-470, an angiogenic inhibitor. KEY FINDINGS WAT angiogenic genes were expressed at low levels, but WAT vascular density was maintained in the CR group compared to that in the HFD-AL group. The CRAL group showed RWG, fat regain, and hyperphagia with higher expression of angiogenic genes and reduced pericyte coverage of the endothelium in WAT on day 3 after CR compared to the CR group, indicating rapidly increased angiogenic activity after CR. Administration of TNP-470 suppressed RWG, fat regain, and hyperphagia only after CR compared to the CRAL group. Changes in circulating leptin levels and hypothalamic neuropeptide gene expression were correlated with changes in weight and fat mass, suggesting that TNP-470 suppressed hyperphagia independently of the hypothalamic melanocortin system. Additionally, TNP-470 increased gene expression related to thermogenesis, fuel utilization, and browning in brown adipose tissue (BAT) and WAT, indicating TNP-470-induced increase in thermogenesis. SIGNIFICANCE Modulation of the WAT vasculature attenuates RWG after CR by suppressing hyperphagia and increasing BAT thermogenesis and WAT browning.
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Affiliation(s)
- Hye-Jin Lee
- Department of Pharmacology, Korea University College of Medicine, Seoul 02841, Republic of Korea; BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Bo-Yeong Jin
- Department of Pharmacology, Korea University College of Medicine, Seoul 02841, Republic of Korea; BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Mi-Rae Park
- Department of Pharmacology, Korea University College of Medicine, Seoul 02841, Republic of Korea; BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Nam Hoon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Kwan Sik Seo
- Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Yong Taek Jeong
- Department of Pharmacology, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Tsutomu Wada
- Department of Clinical Pharmacology, University of Toyama, Toyama 930-0194, Japan
| | - Jun-Seok Lee
- Department of Pharmacology, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Sang-Hyun Choi
- Department of Pharmacology, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Dong-Hoon Kim
- Department of Pharmacology, Korea University College of Medicine, Seoul 02841, Republic of Korea; BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul 02841, Republic of Korea.
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7
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Turchi R, Sciarretta F, Ceci V, Tiberi M, Audano M, Pedretti S, Panebianco C, Nesci V, Pazienza V, Ferri A, Carotti S, Chiurchiù V, Mitro N, Lettieri-Barbato D, Aquilano K. Butyrate prevents visceral adipose tissue inflammation and metabolic alterations in a Friedreich's ataxia mouse model. iScience 2023; 26:107713. [PMID: 37701569 PMCID: PMC10494209 DOI: 10.1016/j.isci.2023.107713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/02/2023] [Accepted: 08/23/2023] [Indexed: 09/14/2023] Open
Abstract
Friedreich's ataxia (FA) is a neurodegenerative disease resulting from a mutation in the FXN gene, leading to mitochondrial frataxin deficiency. FA patients exhibit increased visceral adiposity, inflammation, and heightened diabetes risk, negatively affecting prognosis. We investigated visceral white adipose tissue (vWAT) in a murine model (KIKO) to understand its role in FA-related metabolic complications. RNA-seq analysis revealed altered expression of inflammation, angiogenesis, and fibrosis genes. Diabetes-like traits, including larger adipocytes, immune cell infiltration, and increased lactate production, were observed in vWAT. FXN downregulation in cultured adipocytes mirrored vWAT diabetes-like features, showing metabolic shifts toward glycolysis and lactate production. Metagenomic analysis indicated a reduction in fecal butyrate-producing bacteria, known to exert antidiabetic effects. A butyrate-enriched diet restrained vWAT abnormalities and mitigated diabetes features in KIKO mice. Our work emphasizes the role of vWAT in FA-related metabolic issues and suggests butyrate as a safe and promising adjunct for FA management.
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Affiliation(s)
- Riccardo Turchi
- Department Biology, University of Rome Tor Vergata, Rome, Italy
| | | | - Veronica Ceci
- PhD Program in Evolutionary Biology and Ecology, Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Marta Tiberi
- Laboratory of Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Matteo Audano
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Silvia Pedretti
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Concetta Panebianco
- Gastroenterology Unit Fondazione IRCSS “Casa Sollievo della Sofferenza” Hospital San Giovanni Rotondo (FG)-Italy
| | - Valentina Nesci
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
- Division of Experimental Neuroscience, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Valerio Pazienza
- Gastroenterology Unit Fondazione IRCSS “Casa Sollievo della Sofferenza” Hospital San Giovanni Rotondo (FG)-Italy
| | - Alberto Ferri
- Division of Experimental Neuroscience, IRCCS Fondazione Santa Lucia, Rome, Italy
- Institute of Traslational Pharmacology, IFT-CNR, Rome, Italy
| | - Simone Carotti
- Microscopic and Ultrastructural Anatomy Research Unit, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
- Predictive Molecular Diagnostics, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - Valerio Chiurchiù
- Laboratory of Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Rome, Italy
- Institute of Traslational Pharmacology, IFT-CNR, Rome, Italy
| | - Nico Mitro
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - Daniele Lettieri-Barbato
- Department Biology, University of Rome Tor Vergata, Rome, Italy
- IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Katia Aquilano
- Department Biology, University of Rome Tor Vergata, Rome, Italy
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8
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Malkani N, Rashid MU. Systemic Diseases and Gastrointestinal Cancer Risk. JOURNAL OF CANCER & ALLIED SPECIALTIES 2023; 9:473. [PMID: 37575213 PMCID: PMC10405983 DOI: 10.37029/jcas.v9i2.473] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 06/15/2023] [Indexed: 08/15/2023]
Abstract
Importance Gastrointestinal (GI) cancers are the second leading cause of cancer-related deaths worldwide. Observations The global challenges GI cancers pose are high, especially in middle- and low-income countries. Patients with these cancers present with symptoms of poor appetite, weight loss, heartburn, abdominal pain, fatigue and anaemia. Several risk factors contribute to GI cancers, including age, gender, obesity, pathogenic infections, smoking cigarettes, alcohol consumption and dietary habits. Most of these cancers are sporadic. However, some patients are at high risk due to a family history of GI cancers. Systemic diseases affect multiple organs, and their chronic occurrence elicits inflammatory responses at various sites. These diseases also contribute to GI cancers. Conclusion and Relevance In this review, we discuss that untreated systemic diseases, including diabetes, hepatitis, acquired immune deficiency syndrome, ulcers and hypertension, can potentially lead to GI cancers if they remain untreated for a longer period. Systemic diseases initiate oxidative stress, inflammatory pathways and genetic manipulations, which altogether confer risks to GI cancers. Here, we describe the association between systemic diseases and their underlying mechanisms leading to GI cancers.
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Affiliation(s)
- Naila Malkani
- Department of Zoology, Government College University, Lahore, Punjab, Pakistan
| | - Muhammad Usman Rashid
- Department of Basic Sciences Research, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Punjab, Pakistan
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9
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Karanfil AS, Louis F, Matsusaki M. Biofabrication of vascularized adipose tissues and their biomedical applications. MATERIALS HORIZONS 2023; 10:1539-1558. [PMID: 36789675 DOI: 10.1039/d2mh01391f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Recent advances in adipose tissue engineering and cell biology have led to the development of innovative therapeutic strategies in regenerative medicine for adipose tissue reconstruction. To date, the many in vitro and in vivo models developed for vascularized adipose tissue engineering cover a wide range of research areas, including studies with cells of various origins and types, polymeric scaffolds of natural and synthetic derivation, models presented using decellularized tissues, and scaffold-free approaches. In this review, studies on adipose tissue types with different functions, characteristics and body locations have been summarized with 3D in vitro fabrication approaches. The reason for the particular focus on vascularized adipose tissue models is that current liposuction and fat transplantation methods are unsuitable for adipose tissue reconstruction as the lack of blood vessels results in inadequate nutrient and oxygen delivery, leading to necrosis in situ. In the first part of this paper, current studies and applications of white and brown adipose tissues are presented according to the polymeric materials used, focusing on the studies which could show vasculature in vitro and after in vivo implantation, and then the research on adipose tissue fabrication and applications are explained.
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Affiliation(s)
- Aslı Sena Karanfil
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Japan.
| | - Fiona Louis
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, Japan
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Japan.
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, Japan
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10
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Falkevall A, Mehlem A, Folestad E, Ning FC, Osorio-Conles Ó, Radmann R, de Hollanda A, Wright SD, Scotney P, Nash A, Eriksson U. Inhibition of VEGF-B signaling prevents non-alcoholic fatty liver disease development by targeting lipolysis in the white adipose tissue. J Hepatol 2023; 78:901-913. [PMID: 36717026 DOI: 10.1016/j.jhep.2023.01.014] [Citation(s) in RCA: 14] [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: 06/23/2022] [Revised: 12/22/2022] [Accepted: 01/13/2023] [Indexed: 01/30/2023]
Abstract
BACKGROUND & AIMS Hepatic steatosis is a hallmark of non-alcoholic fatty liver disease (NAFLD), a common comorbidity in type 2 diabetes mellitus (T2DM). The pathogenesis of NAFLD is complex and involves the crosstalk between the liver and the white adipose tissue (WAT). Vascular endothelial growth factor B (VEGF-B) has been shown to control tissue lipid accumulation by regulating the transport properties of the vasculature. The role of VEGF-B signaling and the contribution to hepatic steatosis and NAFLD in T2DM is currently not understood. METHODS C57BL/6 J mice treated with a neutralizing antibody against VEGF-B, or mice with adipocyte-specific overexpression or under-expression of VEGF-B (AdipoqCre+/VEGF-BTG/+ mice and AdipoqCre+/Vegfbfl/+mice) were subjected to a 6-month high-fat diet (HFD), or chow-diet, whereafter NAFLD development was assessed. VEGF-B expression was analysed in WAT biopsies from patients with obesity and NAFLD in a pre-existing clinical cohort (n = 24 patients with NAFLD and n = 24 without NAFLD) and correlated to clinicopathological features. RESULTS Pharmacological inhibition of VEGF-B signaling in diabetic mice reduced hepatic steatosis and NAFLD by blocking WAT lipolysis. Mechanistically we show, by using HFD-fed AdipoqCre+/VEGF-BTG/+ mice and HFD-fed AdipoqCre+/Vegfbfl/+mice, that inhibition of VEGF-B signaling targets lipolysis in adipocytes. Reducing VEGF-B signaling ameliorated NAFLD by decreasing WAT inflammation, resolving WAT insulin resistance, and lowering the activity of the hormone sensitive lipase. Analyses of human WAT biopsies from individuals with NAFLD provided evidence supporting the contribution of VEGF-B signaling to NAFLD development. VEGF-B expression levels in adipocytes from two WAT depots correlated with development of dysfunctional WAT and NAFLD in humans. CONCLUSIONS Taken together, our data from mouse models and humans suggest that VEGF-B antagonism may represent an approach to combat NAFLD by targeting hepatic steatosis through suppression of lipolysis. IMPACT AND IMPLICATIONS Non-alcoholic fatty liver disease (NAFLD) is a common comorbidity in type 2 diabetes mellitus (T2DM) and has a global prevalence of between 25-29%. There are currently no approved drugs for NAFLD, and given the scale of the ongoing diabetes epidemics, there is an urgent need to identify new treatment options. Our work suggests that VEGF-B antagonism may represent an approach to combat NAFLD by targeting hepatic steatosis through suppression of lipolysis. The neutralizing anti-VEGF-B antibody, which was used in this study, has already entered clinical trials for patients with diabetes. Therefore, we believe that our results are of great general interest to a broad audience, including patients and patient organizations, the medical community, academia, the life science industry and the public.
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Affiliation(s)
- Annelie Falkevall
- Division of Vascular Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Annika Mehlem
- Division of Vascular Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Erika Folestad
- Division of Vascular Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Frank Chenfei Ning
- Division of Vascular Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Óscar Osorio-Conles
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain
| | - Rosa Radmann
- Division of Vascular Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Ana de Hollanda
- Obesity Unit. Clinical Hospital of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red Fisiopatologia de la Obesidad y Nutrición (CIBEROBN), Madrid, Spain
| | | | | | - Andrew Nash
- CSL Innovation Pty Ltd, Parkville, Victoria, Australia
| | - Ulf Eriksson
- Division of Vascular Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden.
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11
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Stafeev I, Michurina S, Agareva M, Zubkova E, Sklyanik I, Shestakova E, Gavrilova A, Sineokaya M, Ratner E, Menshikov M, Parfyonova Y, Shestakova M. Visceral mesenchymal stem cells from type 2 diabetes donors activate triglycerides synthesis in healthy adipocytes via metabolites exchange and cytokines secretion. Int J Obes (Lond) 2023:10.1038/s41366-023-01317-1. [PMID: 37100877 DOI: 10.1038/s41366-023-01317-1] [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: 10/17/2022] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023]
Abstract
BACKGROUND In recent years, there has been an increase in the prevalence of obesity and type 2 diabetes mellitus (T2DM). Development of visceral instead of subcutaneous adipose tissue is pathogenic and increases the risk of metabolic abnormalities. We hypothesize that visceral adipocytes and stromal cells are able to deteriorate other fat depots metabolism via secretory mechanisms. METHODS We study the regulatory role of visceral adipose-derived stem cells (vADSC) from donors with obesity and T2DM or normal glucose tolerance (NGT) on healthy subcutaneous ADSC (sADSC) in the Transwell system. Lipid droplets formation during adipogenesis was assessed by confocal microscopy. Cell metabolism was evaluated by 14C-glucose incorporation analysis and western blotting. vADSC secretome was assessed by Milliplex assay. RESULTS We showed that both NGT and T2DM vADSC had mesenchymal phenotype, but expression of CD29 was enhanced, whereas expressions of CD90, CD140b and IGF1R were suppressed in both NGT and T2DM vADSC. Co-differentiation with T2DM vADSC increased lipid droplet size and stimulated accumulation of fatty acids in adipocytes from healthy sADSC. In mature adipocytes T2DM vADSC stimulated triglyceride formation, whereas NGT vADSC activated oxidative metabolism. Secretome of NGT vADSC was pro-inflammatory and pro-angiogenic in comparison with T2DM vADSC. CONCLUSIONS The present study has demonstrated the critical role of secretory interactions between visceral and subcutaneous fat depots both in the level of progenitor and mature cells. Mechanisms of these interactions are related to direct exchange of metabolites and cytokines secretion.
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Affiliation(s)
- Iurii Stafeev
- National Medical Research Centre of Cardiology named after academician E.I.Chazov, 121552, Moscow, Russia.
| | - Svetlana Michurina
- National Medical Research Centre of Cardiology named after academician E.I.Chazov, 121552, Moscow, Russia
- Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Margarita Agareva
- National Medical Research Centre of Cardiology named after academician E.I.Chazov, 121552, Moscow, Russia
- Institute of Fine Chemical Technologies named after M.V. Lomonosov, 119571, Moscow, Russia
| | - Ekaterina Zubkova
- National Medical Research Centre of Cardiology named after academician E.I.Chazov, 121552, Moscow, Russia
| | - Igor Sklyanik
- Endocrinology Research Centre, 117292, Moscow, Russia
| | | | | | | | - Elizaveta Ratner
- National Medical Research Centre of Cardiology named after academician E.I.Chazov, 121552, Moscow, Russia
| | - Mikhail Menshikov
- National Medical Research Centre of Cardiology named after academician E.I.Chazov, 121552, Moscow, Russia
| | - Yelena Parfyonova
- National Medical Research Centre of Cardiology named after academician E.I.Chazov, 121552, Moscow, Russia
- Lomonosov Moscow State University, 119991, Moscow, Russia
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12
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Ziqubu K, Dludla PV, Mthembu SXH, Nkambule BB, Mabhida SE, Jack BU, Nyambuya TM, Mazibuko-Mbeje SE. An insight into brown/beige adipose tissue whitening, a metabolic complication of obesity with the multifactorial origin. Front Endocrinol (Lausanne) 2023; 14:1114767. [PMID: 36875450 PMCID: PMC9978510 DOI: 10.3389/fendo.2023.1114767] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/06/2023] [Indexed: 02/18/2023] Open
Abstract
Brown adipose tissue (BAT), a thermoregulatory organ known to promote energy expenditure, has been extensively studied as a potential avenue to combat obesity. Although BAT is the opposite of white adipose tissue (WAT) which is responsible for energy storage, BAT shares thermogenic capacity with beige adipose tissue that emerges from WAT depots. This is unsurprising as both BAT and beige adipose tissue display a huge difference from WAT in terms of their secretory profile and physiological role. In obesity, the content of BAT and beige adipose tissue declines as these tissues acquire the WAT characteristics via the process called "whitening". This process has been rarely explored for its implication in obesity, whether it contributes to or exacerbates obesity. Emerging research has demonstrated that BAT/beige adipose tissue whitening is a sophisticated metabolic complication of obesity that is linked to multiple factors. The current review provides clarification on the influence of various factors such as diet, age, genetics, thermoneutrality, and chemical exposure on BAT/beige adipose tissue whitening. Moreover, the defects and mechanisms that underpin the whitening are described. Notably, the BAT/beige adipose tissue whitening can be marked by the accumulation of large unilocular lipid droplets, mitochondrial degeneration, and collapsed thermogenic capacity, by the virtue of mitochondrial dysfunction, devascularization, autophagy, and inflammation.
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Affiliation(s)
- Khanyisani Ziqubu
- Department of Biochemistry, North-West University, Mmabatho, South Africa
| | - Phiwayinkosi V. Dludla
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
- Department of Biochemistry and Microbiology, Faculty of Science and Agriculture, University of Zululand, KwaDlangezwa, South Africa
| | - Sinenhlanhla X. H. Mthembu
- Department of Biochemistry, North-West University, Mmabatho, South Africa
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
| | - Bongani B. Nkambule
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Sihle E. Mabhida
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
| | - Babalwa U. Jack
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
| | - Tawanda M. Nyambuya
- Department of Health Sciences, Faculty of Health and Applied Sciences, Namibia University of Science and Technology, Windhoek, Namibia
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13
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Liu S, Benito-Martin A, Pelissier Vatter FA, Hanif SZ, Liu C, Bhardwaj P, Sethupathy P, Farghli AR, Piloco P, Paik P, Mushannen M, Otterburn DM, Cohen L, Bareja R, Krumsiek J, Cohen-Gould L, Calto S, Spector JA, Elemento O, Lyden D, Brown KA. Breast adipose tissue-derived extracellular vesicles from women with obesity stimulate mitochondrial-induced dysregulated tumor cell metabolism. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.08.527715. [PMID: 36798307 PMCID: PMC9934680 DOI: 10.1101/2023.02.08.527715] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Breast adipose tissue is an important contributor to the obesity-breast cancer link. Dysregulated cell metabolism is now an accepted hallmark of cancer. Extracellular vesicles (EVs) are nanosized particles containing selective cargo, such as miRNAs, that act locally or circulate to distant sites to modulate target cell functions. Here, we found that long-term education of breast cancer cells (MCF7, T47D) with EVs from breast adipose tissue of women who are overweight or obese (O-EVs) leads to sustained increased proliferative potential. RNA-Seq of O-EV-educated cells demonstrates increased expression of genes, such as ATP synthase and NADH: ubiquinone oxidoreductase, involved in oxidative phosphorylation. O-EVs increase respiratory complex protein expression, mitochondrial density, and mitochondrial respiration in tumor cells. Mitochondrial complex I inhibitor, metformin, reverses O-EV-induced cell proliferation. Several miRNAs, miR-155-5p, miR-10a-3p, and miR-30a-3p, which promote mitochondrial respiration and proliferation, are enriched in O-EVs relative to EVs from lean women. O-EV-induced proliferation and mitochondrial activity are associated with stimulation of the Akt/mTOR/P70S6K pathway, and are reversed upon silencing of P70S6K. This study reveals a new facet of the obesity-breast cancer link with human breast adipose tissue-derived EVs causing the metabolic reprogramming of ER+ breast cancer cells.
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14
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da Silva IV, Soveral G. Aquaporins in Obesity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1398:289-302. [PMID: 36717502 DOI: 10.1007/978-981-19-7415-1_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Obesity is one of the most important metabolic disorders of this century and is associated with a cluster of the most dangerous cardiovascular disease risk factors, such as insulin resistance and diabetes, dyslipidemia, and hypertension, collectively named Metabolic Syndrome. The role of aquaporins (AQP) in glycerol metabolism facilitating glycerol release from the adipose tissue and distribution to various tissues and organs unveils these membrane channels as important players in lipid balance and energy homeostasis and points to their involvement in a variety of pathophysiological mechanisms including insulin resistance, obesity, and diabetes. This review summarizes the physiologic role of aquaglyceroporins in glycerol metabolism and lipid homeostasis, describing their specific tissue distribution, involvement in glycerol balance, and implication in obesity and fat-related metabolic complications. The development of specify pharmacologic modulators able to regulate aquaglyceroporins expression and function, in particular AQP7 in adipose tissue, might constitute a novel approach for controlling obesity and other metabolic disorders.
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Affiliation(s)
- Inês V da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
- Department Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Graça Soveral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.
- Department Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.
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15
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Rudnicki M, Pislaru A, Rezvan O, Rullman E, Fawzy A, Nwadozi E, Roudier E, Gustafsson T, Haas TL. Transcriptomic profiling reveals sex-specific molecular signatures of adipose endothelial cells under obesogenic conditions. iScience 2022; 26:105811. [PMID: 36624843 PMCID: PMC9823135 DOI: 10.1016/j.isci.2022.105811] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/13/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
Female mice display greater adipose angiogenesis and maintain healthier adipose tissue than do males upon high-fat diet feeding. Through transcriptome analysis of endothelial cells (EC) from the white adipose tissue of male and female mice high-fat-fed for 7 weeks, we found that adipose EC exhibited pronouncedly sex-distinct transcriptomes. Genes upregulated in female adipose EC were associated with proliferation, oxidative phosphorylation, and chromatin remodeling contrasting the dominant enrichment for genes related to inflammation and a senescence-associated secretory of male EC. Similar sex-biased phenotypes of adipose EC were detectable in a dataset of aged EC. The highly proliferative phenotype of female EC was observed also in culture conditions. In turn, male EC displayed greater inflammatory potential than female EC in culture, based on basal and tumor necrosis factor alpha-stimulated patterns of gene expression. Our study provides insights into molecular programs that distinguish male and female EC responses to pathophysiological conditions.
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Affiliation(s)
- Martina Rudnicki
- School of Kinesiology and Health Science & Muscle Health Research Centre, York University, Toronto, Canada,Corresponding author
| | | | - Omid Rezvan
- School of Kinesiology and Health Science & Muscle Health Research Centre, York University, Toronto, Canada
| | - Eric Rullman
- Department Laboratory Medicine, Clinical Physiology, Karolinska Institutet and Department Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
| | - Aly Fawzy
- School of Kinesiology and Health Science & Muscle Health Research Centre, York University, Toronto, Canada
| | - Emmanuel Nwadozi
- School of Kinesiology and Health Science & Muscle Health Research Centre, York University, Toronto, Canada
| | - Emilie Roudier
- School of Kinesiology and Health Science & Muscle Health Research Centre, York University, Toronto, Canada
| | - Thomas Gustafsson
- Department Laboratory Medicine, Clinical Physiology, Karolinska Institutet and Department Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
| | - Tara L. Haas
- School of Kinesiology and Health Science & Muscle Health Research Centre, York University, Toronto, Canada,Department of Biology, York University, Toronto, Canada,Corresponding author
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16
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Baganha F, Schipper R, Hagberg CE. Towards better models for studying human adipocytes in vitro. Adipocyte 2022; 11:413-419. [PMID: 35894386 PMCID: PMC9331194 DOI: 10.1080/21623945.2022.2104514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
With obesity and its comorbidities continuing to rise, we urgently need to improve our understanding of what mechanisms trigger the white adipose tissue to become dysfunctional in response to over-feeding. The recent invent of 3D culturing models has produced several noteworthy protocols for differentiating unilocular adipocytes in vitro, promising to revolutionize the obesity research field by providing more representative adipose tissue models for such mechanistic studies. In parallel, these 3D models provide important insights to how profoundly the microenvironment influences adipocyte differentiation and morphology. This commentary highlights some of the most recent 3D models, including human unilocular vascularized adipocyte spheroids (HUVASs), developed by our lab. We discuss recent developments in the field, provide further insights to the importance of the microvasculature for adipocyte maturation, and summarize what challenges remain to be solved before we can achieve a culture model that fully recapitulates all aspects of human white adipocyte biology in vitro. Taken together, the commentary highlights important recent advances regarding 3D adipocyte culturing and underlines the many advantages these models provide over traditional 2D cultures, with the aim of convincing more laboratories to switch to 3D models.
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Affiliation(s)
- Fabiana Baganha
- Division of Cardiovascular Medicine, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ruby Schipper
- Division of Cardiovascular Medicine, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Carolina E Hagberg
- Division of Cardiovascular Medicine, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
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17
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Amir Levy Y, P Ciaraldi T, R. Mudaliar S, A. Phillips S, R. Henry R. Adipose tissue from subjects with type 2 diabetes exhibits impaired capillary formation in response to GROα: involvement of MMPs-2 and -9. Adipocyte 2022; 11:276-286. [PMID: 35481427 PMCID: PMC9116416 DOI: 10.1080/21623945.2022.2070949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 04/19/2022] [Accepted: 04/22/2022] [Indexed: 12/03/2022] Open
Abstract
Type 2 Diabetes (T2D) is associated with impaired vascularization of adipose tissue (AT) . IL8, GROα and IL15 are pro-angiogenic myokines, secreted at elevated levels by T2D myotubes. We explored the direct impact of these myokines on AT vascularization. AT explants from subjects with T2D and without diabetes (non-diabetic, ND) were treated with rIL8, rGROα and rIL15 in concentrations equal to those in conditioned media (CM) from T2D and ND myotubes, and sprout formation evaluated. Endothelial cells (EC) were isolated from T2D and ND-AT, treated with rGROα and tube formation evaluated. Finally, we investigated the involvement of MMP-2 and -9 in vascularization. ND and T2D concentrations of IL8 or IL15 caused similar stimulation of sprout formation in ND- and T2D-AT. GROα exerted a similar effect in ND-AT. When T2D-AT explants were exposed to GROα, sprout formation in response to T2D concentrations was reduced compared to ND. Exposure of EC from T2D-AT to GROα at T2D concentrations resulted in reduced tube formation. Reduced responses to GROα in T2D-AT and EC were also seen for secretion of MMP-2 and -9. The data indicate that skeletal muscle can potentially regulate AT vascularization, with T2D-AT having impairments in sensitivity to GROα, while responding normally to IL8 and IL15.
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Affiliation(s)
- Yifat Amir Levy
- Center for Metabolic Research, Veterans Affairs San Diego Healthcare System, San Diego, CA, USA
- Departments of Medicine, University of California, La Jolla, CA, USA
| | - Theodore P Ciaraldi
- Center for Metabolic Research, Veterans Affairs San Diego Healthcare System, San Diego, CA, USA
- Departments of Medicine, University of California, La Jolla, CA, USA
| | - Sunder R. Mudaliar
- Center for Metabolic Research, Veterans Affairs San Diego Healthcare System, San Diego, CA, USA
- Departments of Medicine, University of California, La Jolla, CA, USA
| | - Susan A. Phillips
- Center for Metabolic Research, Veterans Affairs San Diego Healthcare System, San Diego, CA, USA
- Departments of Pediatrics, University of California, La Jolla, CA, USA
| | - Robert R. Henry
- Center for Metabolic Research, Veterans Affairs San Diego Healthcare System, San Diego, CA, USA
- Departments of Medicine, University of California, La Jolla, CA, USA
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18
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Li Q, Spalding KL. The regulation of adipocyte growth in white adipose tissue. Front Cell Dev Biol 2022; 10:1003219. [PMID: 36483678 PMCID: PMC9723158 DOI: 10.3389/fcell.2022.1003219] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 11/03/2022] [Indexed: 10/25/2023] Open
Abstract
Adipocytes can increase in volume up to a thousand-fold, storing excess calories as triacylglycerol in large lipid droplets. The dramatic morphological changes required of adipocytes demands extensive cytoskeletal remodeling, including lipid droplet and plasma membrane expansion. Cell growth-related signalling pathways are activated, stimulating the production of sufficient amino acids, functional lipids and nucleotides to meet the increasing cellular needs of lipid storage, metabolic activity and adipokine secretion. Continued expansion gives rise to enlarged (hypertrophic) adipocytes. This can result in a failure to maintain growth-related homeostasis and an inability to cope with excess nutrition or respond to stimuli efficiently, ultimately leading to metabolic dysfunction. We summarize recent studies which investigate the functional and cellular structure remodeling of hypertrophic adipocytes. How adipocytes adapt to an enlarged cell size and how this relates to cellular dysfunction are discussed. Understanding the healthy and pathological processes involved in adipocyte hypertrophy may shed light on new strategies for promoting healthy adipose tissue expansion.
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Affiliation(s)
- Qian Li
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Kirsty L. Spalding
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
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19
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Adipocyte-Specific Laminin Alpha 4 Deletion Preserves Adipose Tissue Health despite Increasing Adiposity. Biomedicines 2022; 10:biomedicines10092077. [PMID: 36140178 PMCID: PMC9495590 DOI: 10.3390/biomedicines10092077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/20/2022] [Accepted: 08/21/2022] [Indexed: 11/22/2022] Open
Abstract
Laminins are heterotrimeric glycoproteins with structural and functional roles in basement membranes. The predominant laminin alpha chain found in adipocyte basement membranes is laminin α4 (LAMA4). Global LAMA4 deletion in mice leads to reduced adiposity and increased energy expenditure, but also results in vascular defects that complicate the interpretation of metabolic data. Here, we describe the generation and initial phenotypic analysis of an adipocyte-specific LAMA4 knockout mouse (Lama4AKO). We first performed an in-silico analysis to determine the degree to which laminin α4 was expressed in human and murine adipocytes. Next, male Lama4AKO and control mice were fed chow or high-fat diets and glucose tolerance was assessed along with serum insulin and leptin levels. Adipocyte area was measured in both epididymal and inguinal white adipose tissue (eWAT and iWAT, respectively), and eWAT was used for RNA-sequencing. We found that laminin α4 was highly expressed in human and murine adipocytes. Further, chow-fed Lama4AKO mice are like control mice in terms of body weight, body composition, and glucose tolerance, although they have larger eWAT adipocytes and lower insulin levels. High-fat-fed Lama4AKO mice are fatter and more glucose tolerant when compared to control mice. Transcriptionally, the eWAT of high-fat fed Lama4AKO mice resembles that of chow-fed control mice. We conclude from these findings that adipocyte-specific LAMA4 deletion is protective in an obesogenic environment, even though overall adiposity is increased.
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20
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Sreekumar S, Vijayan V, Singh F, Sudhakar M, Lakra R, Korrapati PS, Kiran MS. White to brown adipocyte transition mediated by Apigenin via VEGF-PRDM16 signaling. J Cell Biochem 2022; 123:1793-1807. [PMID: 35926149 DOI: 10.1002/jcb.30316] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 11/08/2022]
Abstract
The dysregulated energy metabolism in white adipose tissues results in derangement of biological signaling resulting in obesity. Lack of vascularization in these white adipose tissues is one of the major reasons for dysregulated energy metabolism. Not much work has been done in this direction to understand the role of angiogenesis in white adipose tissue metabolism. In the present study, we evaluated the effect of angiogenic modulator in the metabolism of white adipocyte (WAC). Bioactive Apigenin was selected and its angiogenic ability was studied. Apigenin was shown to be highly proangiogenic hence the effect of Apigenin on de novo and trans-differentiation of WAT was studied. Apigenin showed enhanced de novo differentiation and trans-differentiation of mouse WAC into brown-like phenotype. To understand the effect of Apigenin on adipose tissue vasculature, coculture studies were conducted. Cross talk between endothelial cell and adipocytes were observed in coculture studies. Gene expression studies of cocultured cells revealed that browning of WAC occurred by triggering the expression of Vascular endothelial growth factor A. The study provides a new insight for inducing metabolic shift in WACs by modulation of angiogenesis in WAC microenvironment by the upregulation of PRDM16 cascade to trigger browning for the treatment of obesity.
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Affiliation(s)
- Sreelekshmi Sreekumar
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Vinu Vijayan
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India
| | - Fathe Singh
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Manu Sudhakar
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research (DU), Chennai, India
| | - Rachita Lakra
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India
| | - Purna Sai Korrapati
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Manikantan Syamala Kiran
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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21
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Naaman SC, Shen S, Zeytinoglu M, Iyengar NM. Obesity and Breast Cancer Risk: The Oncogenic Implications of Metabolic Dysregulation. J Clin Endocrinol Metab 2022; 107:2154-2166. [PMID: 35453151 PMCID: PMC9282365 DOI: 10.1210/clinem/dgac241] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Indexed: 12/18/2022]
Abstract
CONTEXT Breast cancer is increasing in prevalence in parallel with rising rates of obesity worldwide. Obesity is recognized as a leading modifiable risk factor for the development of breast cancer; however, this association varies considerably by clinicopathologic features, and the underlying mechanisms are complex. EVIDENCE ACQUISITION Pubmed literature search using combinations of "obesity," "breast cancer risk," "diet," "exercise," "weight gain," "weight loss," "adipose tissue inflammation," "crown-like structure," "immune markers," "metformin," "gliflozins," "SGLT-2i," "GLP1-RA," and related terms. EVIDENCE SYNTHESIS Elevated body mass index and weight gain are associated with increased risk of postmenopausal, hormone receptor-positive breast cancer. Emerging evidence suggests that adverse measures of body composition in individuals of any weight can also confer increased breast cancer risk. Mechanistically, various factors including altered adipokine balance, dysfunctional adipose tissue, dysregulated insulin signaling, and chronic inflammation contribute to tumorigenesis. Weight loss and more specifically fat mass loss through lifestyle and pharmacologic interventions improve serum metabolic and inflammatory markers, sex hormone levels, and measures of breast density, suggesting a link to decreased breast cancer risk. CONCLUSION Incorporating markers of metabolic health and body composition measures with body mass index can capture breast cancer risk more comprehensively. Further studies of interventions targeting body fat levels are needed to curb the growing prevalence of obesity-related cancer.
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Affiliation(s)
| | | | | | - Neil M Iyengar
- Correspondence: Neil Iyengar, MD, Associate Attending, Department of Medicine, Memorial Sloan Kettering Cancer Center, Evelyn H. Lauder Breast Center, 300 East 66th Street | New York, NY 10065, USA.
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22
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Wang M, Zhou X, Jiang Z, Wang J. Angiogenesis Inhibitor ZM 306416 Reduces Non-Alcoholic Fatty Liver Disease in Mice Induced by High-Fat Diet. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) causes countless burden to people worldwide, especially when the quality of people’s life is improved constantly. It has clinical significance to find novel methods to deal with this common disease. Here, we aimed to assess whether angiogenesis
inhibitor ZM306416 could improve NAFLD. Mice were fed with different diets for 15 weeks and treated with ZM306416 followed by analysis of weight and inflammatory infiltration of adipose tissue, fatty degeneration, and fibrosis by immunohistochemistry, fibrosis-related proteins level by qRT-PCR.
Compared to control group, ZM306416 treatment significantly declined mice weight and adipose tissue weight. In addition, ZM306416 decreased blood vessel density of adipose tissues, mitigated inflammatory infiltration, fatty degeneration, and fibrosis. Moreover, ZM304616 alleviated adipose
fibrosis-related protein expression, and transcription of inflammatory genes and adipogenesis genes. However, the inhibitor enhanced β-oxidation of fatty acid, Nrf2, and SOD2, while decreased serum markers of liver injury. In conclsuion, angiogenesis inhibitor ZM306416 attenuates
adipose fibrosis and degradation, promotes adipose functions and lipid metabolism, thereby alleviating obesity-induced nonalcoholic fatty liver.
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Affiliation(s)
- Miaojuan Wang
- Department of General Practice, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhengjiang, China
| | - Xiajuan Zhou
- Department of General Practice, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhengjiang, China
| | - Zhenghao Jiang
- Department of General Practice, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, Zhengjiang, China
| | - Jingyuan Wang
- Health Management Center, Zhejiang Provincial People’s Hospital, Hangzhou, 310000, Zhejiang, China
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23
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Abstract
The mechanistic target of the rapamycin (mTOR) signaling pathway is the central regulator of cell growth and proliferation by integrating growth factor and nutrient availability. Under healthy physiological conditions, this process is tightly coordinated and essential to maintain whole-body homeostasis. Not surprisingly, dysregulated mTOR signaling underpins several diseases with increasing incidence worldwide, including obesity, diabetes, and cancer. Consequently, there is significant clinical interest in developing therapeutic strategies that effectively target this pathway. The transition of mTOR inhibitors from the bench to bedside, however, has largely been marked with challenges and shortcomings, such as the development of therapy resistance and adverse side effects in patients. In this review, we discuss the current status of first-, second-, and third-generation mTOR inhibitors as a cancer therapy in both preclinical and clinical settings, with a particular emphasis on the mechanisms of drug resistance. We focus especially on the emerging role of diet as an important environmental determinant of therapy response, and posit a conceptual framework that links nutrient availability and whole-body metabolic states such as obesity with many of the previously defined processes that drive resistance to mTOR-targeted therapies. Given the role of mTOR as a central integrator of cell metabolism and function, we propose that modulating nutrient inputs through dietary interventions may influence the signaling dynamics of this pathway and compensatory nodes. In doing so, new opportunities for exploiting diet/drug synergies are highlighted that may unlock the therapeutic potential of mTOR inhibitors as a cancer treatment.
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Affiliation(s)
- Nikos Koundouros
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10021,USA
- Department of Pharmacology, Weill Cornell Medicine, New York, NY 10021, USA
- Correspondence: Nikos Koundouros, Meyer Cancer Center, Weill Cornell Medicine, 413 East 69th Street, New York, NY, 10021 USA.
| | - John Blenis
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10021,USA
- Department of Pharmacology, Weill Cornell Medicine, New York, NY 10021, USA
- Department of Biochemistry, Weill Cornell Medicine, New York, NY 10021, USA
- Correspondence: John Blenis, Meyer Cancer Center, Weill Cornell Medicine, 413 East 69th Street, New York, NY, 10021 USA.
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24
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Sinha A, Bavishi A, Hibler EA, Yang EH, Parashar S, Okwuosa T, DeCara JM, Brown SA, Guha A, Sadler D, Khan SS, Shah SJ, Yancy CW, Akhter N. Interconnected Clinical and Social Risk Factors in Breast Cancer and Heart Failure. Front Cardiovasc Med 2022; 9:847975. [PMID: 35669467 PMCID: PMC9163546 DOI: 10.3389/fcvm.2022.847975] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 04/13/2022] [Indexed: 11/29/2022] Open
Abstract
Breast cancer and heart failure share several known clinical cardiovascular risk factors, including age, obesity, glucose dysregulation, cholesterol dysregulation, hypertension, atrial fibrillation and inflammation. However, to fully comprehend the complex interplay between risk of breast cancer and heart failure, factors attributed to both biological and social determinants of health must be explored in risk-assessment. There are several social factors that impede implementation of prevention strategies and treatment for breast cancer and heart failure prevention, including socioeconomic status, neighborhood disadvantage, food insecurity, access to healthcare, and social isolation. A comprehensive approach to prevention of both breast cancer and heart failure must include assessment for both traditional clinical risk factors and social determinants of health in patients to address root causes of lifestyle and modifiable risk factors. In this review, we examine clinical and social determinants of health in breast cancer and heart failure that are necessary to consider in the design and implementation of effective prevention strategies that altogether reduce the risk of both chronic diseases
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Affiliation(s)
- Arjun Sinha
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Avni Bavishi
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Elizabeth A. Hibler
- Department of Preventive Medicine, Division of Cancer Epidemiology and Prevention, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Eric H. Yang
- UCLA Cardio-Oncology Program, Division of Cardiology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Susmita Parashar
- Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA, United States
| | - Tochukwu Okwuosa
- Division of Cardiology, Department of Medicine, Rush University Medical Center, Chicago, IL, United States
| | - Jeanne M. DeCara
- Section of Cardiology, Department of Medicine, University of Chicago Medicine, Chicago, IL, United States
| | - Sherry-Ann Brown
- Division of Cardiology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Avirup Guha
- Cardio-Oncology Program, Division of Cardiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
- Cardio-Oncology Program, Division of Cardiology, The Ohio State University Medical Center, Columbus, OH, United States
| | - Diego Sadler
- Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic Florida, Weston, FL, United States
| | - Sadiya S. Khan
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Sanjiv J. Shah
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Clyde W. Yancy
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Nausheen Akhter
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- *Correspondence: Nausheen Akhter
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25
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李 茂, 于 湄, 刘 磊, 田 卫. [Application of Extracellular Vesicles Derived from Vascular Endothelial/Endothelial Progenitor Cells in Tissue Regeneration and Repair]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2022; 53:355-360. [PMID: 35332742 PMCID: PMC10409345 DOI: 10.12182/20220360507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Indexed: 06/14/2023]
Abstract
Extracellular vesicles can be released by almost all types of cells and are important mediators of intercellular signal transmssion. Extracellular vesicles regulate the function and activity of recipient cells by delivering biologically active molecules such as proteins and nucleic acids, which is of great significance in tissue repair and regeneration. According to numerous studies, extracellular vesicles derived from endothelial/endothelial progenitor cells can induce cell proliferation and differentiation, inhibit cell apoptosis, and promote angiogenesis, playing an increasingly important role in regenerative medicine. We reported in this review the latest findings on applying extracellular vesicles derived from endothelial/endothelial progenitor cells in tissue regeneration and repair, and discussed the challenges and future development directions of their application in the field of regenerative medicine.
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Affiliation(s)
- 茂叶 李
- 四川大学华西口腔医学院 (成都 610041)West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - 湄 于
- 四川大学华西口腔医学院 (成都 610041)West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - 磊 刘
- 四川大学华西口腔医学院 (成都 610041)West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - 卫东 田
- 四川大学华西口腔医学院 (成都 610041)West China School of Stomatology, Sichuan University, Chengdu 610041, China
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26
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Clément AA, Lacaille M, Lounis MA, Biertho LD, Richard D, Lemieux I, Bergeron J, Mounier C, Joanisse DR, Mauriège P. Intra-abdominal adipose depot variation in adipogenesis, lipogenesis, angiogenesis, and fibrosis gene expression and relationships with insulin resistance and inflammation in premenopausal women with severe obesity. J Physiol Biochem 2022; 78:527-542. [PMID: 35000091 DOI: 10.1007/s13105-021-00855-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 10/21/2021] [Indexed: 10/19/2022]
Abstract
Although severe obesity is associated with insulin resistance (IR) and inflammation, secretory function of intra-abdominal adipose tissues and their relationships with IR and inflammation markers remain poorly understood. Aims were to measure gene expression of adipogenic (C/EBPα/β, PPARγ-1/2, SREBP-1c, LXRα), lipogenic (SCD1, DGAT-1/2), angiogenic (VEGFα, leptin), and fibrotic (LOX, COL6A3) factors in the round ligament (RL), omental (OM), and mesenteric (ME) fat depots and to evaluate their relationships with IR and inflammation markers in 48 women with severe obesity undergoing bariatric surgery. Gene expression was assessed by RT-qPCR, and plasma glucose and insulin (HOMA-IR calculated), PAI-1, IL-6, TNFα, adiponectin, and leptin levels were determined. C/EBPβ and PPARγ-1/2 mRNA levels were more expressed in the OM (0.001<p<0.05). ME showed the highest expression of C/EBPα, SREBP-1c, DGAT-2, and leptin and the lowest of SCD1, LXRα, VEGFα, and LOX (0.001<p<0.05). COL6A3 expression was higher in the ME and RL (p<0.001). COL6A3 expression was negatively associated with IR indices in the RL (0.01<p<0.05) and with fasting glycemia and HOMA-IR in the OM (0.001<p<0.05). VEGFα expression was positively related to TNFα and PAI-1 in the RL (0.001<p<0.05) and to PAI-1 in the OM (p<0.05) and negatively to PAI-1 in the ME (p<0.001). Fibrosis gene expression correlated negatively with inflammation in RL and OM (0.001<p<0.05) and positively with PAI-1 in the ME (0.001<p<0.05). The varying relationships of gene expression profiles with selected IR indices and inflammation biomarkers further suggest these fat depots have distinct contributions to overall health in premenopausal women with severe obesity.
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Affiliation(s)
- Andrée-Anne Clément
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec (CRIUCPQ), Quebec, Canada.,Département de Biochimie et Génomique Fonctionnelle, Faculté de médecine et sciences de la santé, Université de Sherbrooke, Sherbrooke, Canada
| | - Michel Lacaille
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec (CRIUCPQ), Quebec, Canada
| | - Mohamed Amine Lounis
- Centre de Recherche du Centre Hospitalier Universitaire de Montréal (CRCHUM), Institut du Cancer de Montréal (ICM), Montreal, Quebec, Canada
| | - Laurent D Biertho
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec (CRIUCPQ), Quebec, Canada.,Département de Chirurgie, Faculté de Médecine, Université Laval, Quebec, Canada
| | - Denis Richard
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec (CRIUCPQ), Quebec, Canada.,Département de Physiologie, Faculté de Médecine, Université Laval, Quebec, Canada
| | - Isabelle Lemieux
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec (CRIUCPQ), Quebec, Canada
| | - Jean Bergeron
- Axe Endocrinologie et Néphrologie, Centre de Recherche du Centre Hospitalier Universitaire de Québec (CHUL), Québec, Canada
| | - Catherine Mounier
- Département des Sciences Biologiques et Centre d'Excellence en Recherche sur les Maladies Orphelines - Fondation Courtois (CERMO-FC), Université du Québec À Montréal, Montreal, Canada
| | - Denis R Joanisse
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec (CRIUCPQ), Quebec, Canada.,Département de Kinésiologie, Faculté de médecine, Université Laval, Quebec, Canada
| | - Pascale Mauriège
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec (CRIUCPQ), Quebec, Canada. .,Département de Kinésiologie, Faculté de médecine, Université Laval, Quebec, Canada.
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27
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Acosta FM, Stojkova K, Zhang J, Garcia Huitron EI, Jiang JX, Rathbone CR, Brey EM. Engineering Functional Vascularized Beige Adipose Tissue from Microvascular Fragments of Models of Healthy and Type II Diabetes Conditions. J Tissue Eng 2022; 13:20417314221109337. [PMID: 35782994 PMCID: PMC9248044 DOI: 10.1177/20417314221109337] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 06/08/2022] [Indexed: 01/10/2023] Open
Abstract
Engineered beige adipose tissues could be used for screening therapeutic strategies or as a direct treatment for obesity and metabolic disease. Microvascular fragments are vessel structures that can be directly isolated from adipose tissue and may contain cells capable of differentiation into thermogenic, or beige, adipocytes. In this study, culture conditions were investigated to engineer three-dimensional, vascularized functional beige adipose tissue using microvascular fragments isolated from both healthy animals and a model of type II diabetes (T2D). Vascularized beige adipose tissues were engineered and exhibited increased expression of beige adipose markers, enhanced function, and improved cellular respiration. While microvascular fragments isolated from both lean and diabetic models were able to generate functional tissues, differences were observed in regard to vessel assembly and tissue function. This study introduces an approach that could be employed to engineer vascularized beige adipose tissues from a single, potentially autologous source of cells.
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Affiliation(s)
- Francisca M. Acosta
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
- UTSA-UTHSCSA Joint Graduate Program in
Biomedical Engineering, San Antonio, TX, USA
- Department of Biochemistry and
Structural Biology, University of Texas Health Science Center, San Antonio, TX,
USA
| | - Katerina Stojkova
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
| | - Jingruo Zhang
- Department of Biochemistry and
Structural Biology, University of Texas Health Science Center, San Antonio, TX,
USA
| | - Eric Ivan Garcia Huitron
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
| | - Jean X. Jiang
- Department of Biochemistry and
Structural Biology, University of Texas Health Science Center, San Antonio, TX,
USA
| | - Christopher R. Rathbone
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
- UTSA-UTHSCSA Joint Graduate Program in
Biomedical Engineering, San Antonio, TX, USA
| | - Eric M. Brey
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
- UTSA-UTHSCSA Joint Graduate Program in
Biomedical Engineering, San Antonio, TX, USA
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28
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Role of Distinct Fat Depots in Metabolic Regulation and Pathological Implications. Rev Physiol Biochem Pharmacol 2022; 186:135-176. [PMID: 35915363 DOI: 10.1007/112_2022_73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
People suffering from obesity and associated metabolic disorders including diabetes are increasing exponentially around the world. Adipose tissue (AT) distribution and alteration in their biochemical properties play a major role in the pathogenesis of these diseases. Emerging evidence suggests that AT heterogeneity and depot-specific physiological changes are vital in the development of insulin resistance in peripheral tissues like muscle and liver. Classically, AT depots are classified into white adipose tissue (WAT) and brown adipose tissue (BAT); WAT is the site of fatty acid storage, while BAT is a dedicated organ of metabolic heat production. The discovery of beige adipocyte clusters in WAT depots indicates AT heterogeneity has a more central role than hither to ascribed. Therefore, we have discussed in detail the current state of understanding on cellular and molecular origin of different AT depots and their relevance toward physiological metabolic homeostasis. A major focus is to highlight the correlation between altered WAT distribution in the body and metabolic pathogenesis in animal models and humans. We have also underscored the disparity in the molecular (including signaling) changes in various WAT tissues during diabetic pathogenesis. Exercise-mediated beneficial alteration in WAT physiology/distribution that protects against metabolic disorders is evolving. Here we have discussed the depot-specific biochemical adjustments induced by different forms of exercise. A detailed understanding of the molecular details of inter-organ crosstalk via substrate utilization/storage and signaling through chemokines provide strategies to target selected WAT depots to pharmacologically mimic the benefits of exercise countering metabolic diseases including diabetes.
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29
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Frasca D, Strbo N. Effects of Obesity on Infections with Emphasis on Skin Infections and Wound Healing. JOURNAL OF DERMATOLOGY AND SKIN SCIENCE 2022; 4:5-10. [PMID: 37621853 PMCID: PMC10448872 DOI: 10.29245/2767-5092/2022/3.1157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Obesity represents a serious health problem as it is rapidly increasing worldwide. Obesity is associated with reduced health span and life span, decreased responses to infections and vaccination and increased frequency of inflammatory conditions. In this review, we summarize published data showing that obesity increases the risk of different types of infections, with a special focus on skin infections. Obesity also induces skin changes and conditions (inflammation-based and hypertrophic) which are often associated with fungi or bacteria overgrowth. The association of obesity with the skin microbiome has been established in both mice and humans. Balance of commensal microbes controls skin homeostasis and the host immune response, while changes in normal physiologic skin microbiome composition and pathologic bacteria contribute to skin diseases. We also summarize the major steps in wound healing and how obesity affects each of them. The role that immune cells have in this process is also described. Although the studies summarized in this review clearly demonstrate the deleterious effects of obesity on wound healing, additional studies are needed to better characterize the cellular and molecular mechanisms involved and identify specific targets of intervention.
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Affiliation(s)
- Daniela Frasca
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL USA
| | - Natasa Strbo
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL USA
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30
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Narykov O, Johnson NT, Korkin D. Predicting protein interaction network perturbation by alternative splicing with semi-supervised learning. Cell Rep 2021; 37:110045. [PMID: 34818539 DOI: 10.1016/j.celrep.2021.110045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/21/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022] Open
Abstract
Alternative splicing introduces an additional layer of protein diversity and complexity in regulating cellular functions that can be specific to the tissue and cell type, physiological state of a cell, or disease phenotype. Recent high-throughput experimental studies have illuminated the functional role of splicing events through rewiring protein-protein interactions; however, the extent to which the macromolecular interactions are affected by alternative splicing has yet to be fully understood. In silico methods provide a fast and cheap alternative to interrogating functional characteristics of thousands of alternatively spliced isoforms. Here, we develop an accurate feature-based machine learning approach that predicts whether a protein-protein interaction carried out by a reference isoform is perturbed by an alternatively spliced isoform. Our method, called the alternatively spliced interactions prediction (ALT-IN) tool, is compared with the state-of-the-art PPI prediction tools and shows superior performance, achieving 0.92 in precision and recall values.
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Affiliation(s)
- Oleksandr Narykov
- Department of Computer Science, and Bioinformatics and Computational Biology Program, Worcester Polytechnic Institute, Worcester, MA, USA
| | - Nathan T Johnson
- Department of Computer Science, and Bioinformatics and Computational Biology Program, Worcester Polytechnic Institute, Worcester, MA, USA; Harvard Program in Therapeutic Sciences, Harvard Medical School, and Breast Tumor Immunology Laboratory, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Dmitry Korkin
- Department of Computer Science, and Bioinformatics and Computational Biology Program, Worcester Polytechnic Institute, Worcester, MA, USA.
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31
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Jafari N, Kolla M, Meshulam T, Shafran JS, Qiu Y, Casey AN, Pompa IR, Ennis CS, Mazzeo CS, Rabhi N, Farmer SR, Denis GV. Adipocyte-derived exosomes may promote breast cancer progression in type 2 diabetes. Sci Signal 2021; 14:eabj2807. [PMID: 34813359 PMCID: PMC8765301 DOI: 10.1126/scisignal.abj2807] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Obesity and metabolic diseases, such as insulin resistance and type 2 diabetes (T2D), are associated with metastatic breast cancer in postmenopausal women. Here, we investigated the critical cellular and molecular factors behind this link. We found that primary human adipocytes shed extracellular vesicles, specifically exosomes, that induced the expression of genes associated with epithelial-to-mesenchymal transition (EMT) and cancer stem–like cell (CSC) traits in cocultured breast cancer cell lines. Transcription of these genes was further increased in cells exposed to exosomes shed from T2D patient–derived adipocytes or insulin-resistant adipocytes and required the epigenetic reader proteins BRD2 and BRD4 in recipient cells. The thrombospondin family protein TSP5, which is associated with cancer, was more abundant in exosomes from T2D or insulin-resistant adipocytes and partially contributed to EMT in recipient cells. Bioinformatic analysis of breast cancer patient tissue showed that greater coexpression of COMP (which encodes TSP5) and BRD2 or BRD3 correlated with poorer prognosis, specifically decreased distant metastasis–free survival. Our findings reveal a mechanism of exosome-mediated cross-talk between metabolically abnormal adipocytes and breast cancer cells that may promote tumor aggressiveness in patients with T2D.
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Affiliation(s)
- Naser Jafari
- Boston University-Boston Medical Center Cancer Center, Boston University School of Medicine, Boston, MA 02118, USA
| | - Manohar Kolla
- Boston University-Boston Medical Center Cancer Center, Boston University School of Medicine, Boston, MA 02118, USA
| | - Tova Meshulam
- Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118, USA
| | - Jordan S. Shafran
- Boston University-Boston Medical Center Cancer Center, Boston University School of Medicine, Boston, MA 02118, USA
- Current affiliation: Abbott Laboratories, Abbott Park, IL 60064, USA
| | - Yuhan Qiu
- Boston University-Boston Medical Center Cancer Center, Boston University School of Medicine, Boston, MA 02118, USA
| | - Allison N. Casey
- Boston University-Boston Medical Center Cancer Center, Boston University School of Medicine, Boston, MA 02118, USA
- Current affiliation: University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Isabella R. Pompa
- Boston University-Boston Medical Center Cancer Center, Boston University School of Medicine, Boston, MA 02118, USA
| | - Christina S. Ennis
- Boston University-Boston Medical Center Cancer Center, Boston University School of Medicine, Boston, MA 02118, USA
| | - Carla S. Mazzeo
- Section of Gastroenterology, Boston University School of Medicine, Boston, MA 02118, USA
| | - Nabil Rabhi
- Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118, USA
| | - Stephen R. Farmer
- Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118, USA
| | - Gerald V. Denis
- Boston University-Boston Medical Center Cancer Center, Boston University School of Medicine, Boston, MA 02118, USA
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA 02118, USA
- Shipley Prostate Cancer Research Professor, Boston University School of Medicine, Boston, MA 02118, USA
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32
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Aragón-Vela J, Solis-Urra P, Ruiz-Ojeda FJ, Álvarez-Mercado AI, Olivares-Arancibia J, Plaza-Diaz J. Impact of Exercise on Gut Microbiota in Obesity. Nutrients 2021; 13:nu13113999. [PMID: 34836254 PMCID: PMC8624603 DOI: 10.3390/nu13113999] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 12/19/2022] Open
Abstract
Physical activity, exercise, or physical fitness are being studied as helpful nonpharmacological therapies to reduce signaling pathways related to inflammation. Studies describing changes in intestinal microbiota have stated that physical activity could increase the microbial variance and enhance the ratio of Firmicutes/Bacteroidetes, and both actions could neutralize the obesity progression and diminish body weight. The aim of this review is to provide an overview of the literature describing the relationship between physical activity profiles and gut microbiota and in obesity and some associated comorbidities. Promoting physical activity could support as a treatment to maintain the gut microbiota composition or to restore the balance toward an improvement of dysbiosis in obesity; however, these mechanisms need to be studied in more detail. The opportunity to control the microbiota by physical activity to improve health results and decrease obesity and related comorbidities is very attractive. Nevertheless, several incompletely answered questions need to be addressed before this strategy can be implemented.
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Affiliation(s)
- Jerónimo Aragón-Vela
- Department of Physiology, School of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain
- Institute of Nutrition and Food Technology “José Mataix”, Center of Biomedical Research, University of Granada, Avda. del Conocimiento s/n, 18016 Granada, Spain; (F.J.R.-O.); (A.I.Á.-M.)
- Correspondence: (J.A.-V.); (J.P.-D.); Tel.: +34-958220319 (J.A.-V.); +34-958241599 (J.P.-D.)
| | - Patricio Solis-Urra
- PROFITH “PROmoting FITness and Health through Physical Activity” Research Group, Department of Physical Education and Sports, Faculty of Sports Science, University of Granada, 18071 Granada, Spain;
- Faculty of Education and Social Sciences, Universidad Andres Bello, Viña del Mar 2531015, Chile
| | - Francisco Javier Ruiz-Ojeda
- Institute of Nutrition and Food Technology “José Mataix”, Center of Biomedical Research, University of Granada, Avda. del Conocimiento s/n, 18016 Granada, Spain; (F.J.R.-O.); (A.I.Á.-M.)
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria IBS.GRANADA, Complejo Hospitalario Universitario de Granada, 18014 Granada, Spain
- RG Adipocytes and Metabolism, Institute for Diabetes and Obesity, Helmholtz Diabetes Center at Helmholtz Center Munich, Neuherberg, 85764 Munich, Germany
| | - Ana Isabel Álvarez-Mercado
- Institute of Nutrition and Food Technology “José Mataix”, Center of Biomedical Research, University of Granada, Avda. del Conocimiento s/n, 18016 Granada, Spain; (F.J.R.-O.); (A.I.Á.-M.)
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria IBS.GRANADA, Complejo Hospitalario Universitario de Granada, 18014 Granada, Spain
| | - Jorge Olivares-Arancibia
- Grupo AFySE, Investigación en Actividad Física y Salud Escolar, Escuela de Pedagogía en Educación Física, Facultad de Educación, Universidad de las Américas, Santiago 8370035, Chile;
- IRyS Research Group, School of Physical Education, Pontificia Universidad Católica de Valparaíso, Valparaíso 2374631, Chile
| | - Julio Plaza-Diaz
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria IBS.GRANADA, Complejo Hospitalario Universitario de Granada, 18014 Granada, Spain
- Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON K1H 8L1, Canada
- Correspondence: (J.A.-V.); (J.P.-D.); Tel.: +34-958220319 (J.A.-V.); +34-958241599 (J.P.-D.)
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Binișor I, Baniță IM, Alexandru D, Mehedinți MC, Jurja S, Andrei AM, Pisoschi CG. Progranulin: A proangiogenic factor in visceral adipose tissue in tumoral and non-tumoral visceral pathology. Exp Ther Med 2021; 22:1337. [PMID: 34630691 PMCID: PMC8495564 DOI: 10.3892/etm.2021.10772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 08/23/2021] [Indexed: 11/10/2022] Open
Abstract
The connection between central obesity and the development and metastasis of various visceral tumors is largely accepted and one of the main causes seems to be the local synthesis of proangiogenic molecules. Progranulin (PRG), recently identified as an adipokine, is a novel pleiotropic growth factor acting on the proliferation and development of fast-growing epithelial cells, cancer cells, and also a proangiogenic factor whose expression is induced in activated endothelial cells. One of the molecules that seems to trigger the angiogenic activity of PRG is vascular endothelial growth factor (VEGF). Two groups of human subjects were considered and adipose tissue was processed for an immunohistochemical and morphometric study after surgery for abdominal tumoral or non-tumoral pathology. The presence of PRG in adipose pads of the omentum was analyzed and its association with VEGF, CD34 and collagen IV in tumoral and non-tumoral visceral pathology was examined. The results showed that PRG but not VEGF expression was upregulated in adipose tissue in tumoral visceral pathology. In conclusion, the involvement of the proangiogenic activity of PRG and VEGF in adipose tissue under tumor conditions may be dependent on the visceral tumor type.
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Affiliation(s)
- Ioana Binișor
- Department of Histology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ileana Monica Baniță
- Department of Histology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Dragoș Alexandru
- Department of Medical Informatics and Biostatistics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | | | - Sanda Jurja
- Department of Ophthalmology, ‘Ovidius’ University of Constanta, 900470 Constanta, Romania
| | - Ana-Marina Andrei
- Department of Biochemistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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Hunyenyiwa T, Hendee K, Matus K, Kyi P, Mammoto T, Mammoto A. Obesity Inhibits Angiogenesis Through TWIST1-SLIT2 Signaling. Front Cell Dev Biol 2021; 9:693410. [PMID: 34660572 PMCID: PMC8511494 DOI: 10.3389/fcell.2021.693410] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 08/30/2021] [Indexed: 01/22/2023] Open
Abstract
Angiogenesis is required for functional adipose tissue maintenance, remodeling, and expansion. Physiologically balanced adipogenesis and angiogenesis are inhibited in subcutaneous adipose tissue in obese humans. However, the mechanism by which angiogenesis is inhibited in obese adipose tissue is not fully understood. Transcription factor TWIST1 controls angiogenesis and vascular function. TWIST1 expression is lower in obese human adipose tissues. Here, we have demonstrated that angiogenesis is inhibited in endothelial cells (ECs) isolated from adipose tissues of obese humans through TWIST1-SLIT2 signaling. The levels of TWIST1 and SLIT2 are lower in ECs isolated from obese human adipose tissues compared to those from lean tissues. Knockdown of TWIST1 in lean human adipose ECs decreases, while overexpression of TWIST1 in obese adipose ECs restores SLIT2 expression. DNA synthesis and cell migration are inhibited in obese adipose ECs and the effects are restored by TWIST1 overexpression. Obese adipose ECs also inhibit blood vessel formation in the gel subcutaneously implanted in mice, while these effects are restored when gels are mixed with SLIT2 or supplemented with ECs overexpressing TWIST1. These findings suggest that obesity impairs adipose tissue angiogenesis through TWIST1-SLIT2 signaling.
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Affiliation(s)
- Tendai Hunyenyiwa
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States.,Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Kathryn Hendee
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Kienna Matus
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Priscilla Kyi
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States.,Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Tadanori Mammoto
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States.,Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Akiko Mammoto
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, United States.,Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, United States
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35
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Understanding the heterogeneity and functions of metabolic tissue macrophages. Semin Cell Dev Biol 2021; 119:130-139. [PMID: 34561168 DOI: 10.1016/j.semcdb.2021.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/06/2021] [Accepted: 09/06/2021] [Indexed: 02/08/2023]
Abstract
Growing evidence places tissue-resident macrophages as essential gatekeepers of metabolic organ homeostasis, including the adipose tissue and the pancreatic islets. Therein, macrophages may adopt specific phenotypes and ensure local functions. Recent advances in single cell genomic analyses provide a comprehensive map of adipose tissue macrophage subsets and their potential roles are now better apprehended. Whether they are beneficial or detrimental, macrophages overall contribute to the proper adipose tissue expansion under steady state and during obesity. By contrast, macrophages residing inside pancreatic islets, which may exert fundamental functions to fine tune insulin secretion, have only started to attract attention and their cellular heterogeneity remains to be established. The present review will focus on the latest findings exploring the phenotype and the properties of macrophages in adipose tissue and pancreatic islets, questioning early beliefs and future perspectives in the field of immunometabolism.
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36
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Sowka A, Dobrzyn P. Role of Perivascular Adipose Tissue-Derived Adiponectin in Vascular Homeostasis. Cells 2021; 10:cells10061485. [PMID: 34204799 PMCID: PMC8231548 DOI: 10.3390/cells10061485] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 12/27/2022] Open
Abstract
Studies of adipose tissue biology have demonstrated that adipose tissue should be considered as both passive, energy-storing tissue and an endocrine organ because of the secretion of adipose-specific factors, called adipokines. Adiponectin is a well-described homeostatic adipokine with metabolic properties. It regulates whole-body energy status through the induction of fatty acid oxidation and glucose uptake. Adiponectin also has anti-inflammatory and antidiabetic properties, making it an interesting subject of biomedical studies. Perivascular adipose tissue (PVAT) is a fat depot that is conterminous to the vascular wall and acts on it in a paracrine manner through adipokine secretion. PVAT-derived adiponectin can act on the vascular wall through endothelial cells and vascular smooth muscle cells. The present review describes adiponectin's structure, receptors, and main signaling pathways. We further discuss recent studies of the extent and nature of crosstalk between PVAT-derived adiponectin and endothelial cells, vascular smooth muscle cells, and atherosclerotic plaques. Furthermore, we argue whether adiponectin and its receptors may be considered putative therapeutic targets.
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37
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Fu P, Zhu R, Jia J, Hu Y, Wu C, Cieszczyk P, Holmberg HC, Gong L. Aerobic exercise promotes the functions of brown adipose tissue in obese mice via a mechanism involving COX2 in the VEGF signaling pathway. Nutr Metab (Lond) 2021; 18:56. [PMID: 34082784 PMCID: PMC8176720 DOI: 10.1186/s12986-021-00581-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 05/27/2021] [Indexed: 12/18/2022] Open
Abstract
Background High-fat diet (HFD)-induced obesity causes immune cells to infiltrate adipose tissue, leading to chronic inflammation and metabolic syndrome. Brown adipose tissue (BAT) can dissipate the energy produced by lipid oxidation as heat, thereby counteracting obesity. Aerobic exercise activates BAT, but the specific underlying mechanism is still unclear. Methods Male C57BL/6 J mice were divided into a normal diet control group (NC group) and HFD group (H group). After becoming obese, the animals in the H group were subdivided into a control group (HC group) and an exercise group (HE group, with treadmill training). After 4 weeks, the mRNA profile of BAT was determined, and then differentially expressed key genes and pathways were verified in vitro. Results Relative to the NC group, the genes upregulated in the HC group coded mainly for proteins involved in immune system progression and inflammatory and immune responses, while the downregulated genes regulated lipid metabolism and oxidation–reduction. Relative to the HC group, the genes upregulated in the HE group coded for glycolipid metabolism, while those that were downregulated were involved in cell death and apoptosis. VEGF and other signaling pathways were enhanced by aerobic exercise. Interaction analysis revealed that the gene encoding cyclooxygenase 2 (COX2) of the VEGF signaling pathway is central to this process, which was verified by a sympathetic activator (isoprenaline hydrochloride) and COX2 inhibitor (NS-398). Conclusions In mice with HFD-induced obesity, four weeks of aerobic exercise elevated BAT mass and increased the expression of genes related to glycolipid metabolism and anti-inflammatory processes. Several pathways are involved, with COX2 in the VEGF signaling pathway playing a key role.
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Affiliation(s)
- Pengyu Fu
- China Institute of Sport and Health Science, Beijing Sport University, Xinxi Road 48, Haidian District, Beijing, 100084, China.,Department of Physical Education, Northwestern Polytechnical University, West Youyi Road 127, Beilin District, Shaanxi, 710109, China
| | - Rongxin Zhu
- China Institute of Sport and Health Science, Beijing Sport University, Xinxi Road 48, Haidian District, Beijing, 100084, China.,Shanghai Research Institute of Sports Science, Xuhui District, Wuxing Road 87, Shanghai, 200030, China
| | - Jie Jia
- China Institute of Sport and Health Science, Beijing Sport University, Xinxi Road 48, Haidian District, Beijing, 100084, China.,Sport Science College, Beijing Sport University, Xinxi Road 48, Haidian District, Beijing, 100084, China
| | - Yang Hu
- China Institute of Sport and Health Science, Beijing Sport University, Xinxi Road 48, Haidian District, Beijing, 100084, China
| | - Chengjun Wu
- School of Biomedical Engineering, Dalian University of Technology and IC Technology Key Lab of Liaoning, Dalian, 116024, China
| | - Pawel Cieszczyk
- Department of Molecular Biology, Faculty of Physical Education, Gdańsk University of Physical Education and Sport, ul. Kazimierza Górskiego 1, 80-336, Gdańsk, Poland
| | - Hans-Christer Holmberg
- Department of Physiology and Pharmacology, Biomedicum C5, Karolinska Institute, Stockholm, Sweden
| | - Lijing Gong
- China Institute of Sport and Health Science, Beijing Sport University, Xinxi Road 48, Haidian District, Beijing, 100084, China.
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Abstract
This Review focuses on the mechanistic evidence for a link between obesity, dysregulated cellular metabolism and breast cancer. Strong evidence now links obesity with the development of 13 different types of cancer, including oestrogen receptor-positive breast cancer in postmenopausal women. A number of local and systemic changes are hypothesized to support this relationship, including increased circulating levels of insulin and glucose as well as adipose tissue-derived oestrogens, adipokines and inflammatory mediators. Metabolic pathways of energy production and utilization are dysregulated in tumour cells and this dysregulation is a newly accepted hallmark of cancer. Dysregulated metabolism is also hypothesized to be a feature of non-neoplastic cells in the tumour microenvironment. Obesity-associated factors regulate metabolic pathways in both breast cancer cells and cells in the breast microenvironment, which provides a molecular link between obesity and breast cancer. Consequently, interventions that target these pathways might provide a benefit in postmenopausal women and individuals with obesity, a population at high risk of breast cancer.
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Affiliation(s)
- Kristy A Brown
- Sandra and Edward Meyer Cancer Center and Department of Medicine, Weill Cornell Medicine, New York, NY, USA.
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Pourdashti S, Faridi N, Yaghooti H, Jalali MT, Soroush A, Bathaie SZ. Possible role of WNT10B in increased proliferation and tubule formation of human umbilical vein endothelial cell cultures treated with hypoxic conditioned medium from human adipocytes. Biotech Histochem 2021; 97:168-179. [PMID: 34044678 DOI: 10.1080/10520295.2021.1923801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Regulation of angiogenesis plays an important role in adipose tissue expansion and function. The Wnt pathway and WNT10B, the main member of Wnt family, participate in angiogenesis in cancer tumors, but there is limited evidence to support the regulatory role of WNT10B in human adipose tissue angiogenesis. Subcutaneous white adipose tissue (scWAT) of 80 participants including obese and non-obese subjects was obtained and the expression of WNT10B and VEGFA genes were evaluated using qPCR. Human adipose-derived stem cells (hADSC) were differentiated to adipocytes and incubated under either hypoxic or normoxic conditions. The conditioned media of these adipocytes were collected and used as growth media for human umbilical vein endothelial cells (HUVEC) in Matrigel. We evaluated the proliferation, cell cycle phases, tubule formation and β-catenin activation of these treated cells. We found a significant correlation between WNT10B and VEGFA expression in the scWAT of both obese and non-obese subjects. Proliferation and tubule formation of HUVEC treated with conditioned media of hypoxic adipocytes (hCM) in the S-phase were increased significantly compared to the HUVEC treated with the conditioned media of normoxic adipocytes (nCM). The expression of WNT10B and VEGFA was enhanced in hypoxic adipocytes compared to normoxic adipocytes; also, activation and nuclear translocation of β-catenin was enhanced in the HUVEC treated with hCM compared to nCM. WNT10B acts as an angiogenic protein in scWAT under hypoxic conditions. Hypoxia induced WNT10B increases VEGFA expression and causes tube formation by HUVECs and angiogenesis in adipose tissue via the canonical Wnt/β-catenin pathway.
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Affiliation(s)
- Sara Pourdashti
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University (TMU), Tehran, Iran
| | - Nassim Faridi
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University (TMU), Tehran, Iran
| | - Hamid Yaghooti
- Cellular and Molecular Research Center and Hyperlipidemia Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad-Taha Jalali
- Hyperlipidemia Research Center and Diabetes Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
| | - Ahmadreza Soroush
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - S Zahra Bathaie
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University (TMU), Tehran, Iran
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Lee SG, Kim JS, Kim HJ, Schlaepfer DD, Kim IS, Nam JO. Endothelial angiogenic activity and adipose angiogenesis is controlled by extracellular matrix protein TGFBI. Sci Rep 2021; 11:9644. [PMID: 33958649 PMCID: PMC8102489 DOI: 10.1038/s41598-021-88959-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 04/05/2021] [Indexed: 12/14/2022] Open
Abstract
Several studies have suggested that extracellular matrix (ECM) remodeling and the microenvironment are tightly associated with adipogenesis and adipose angiogenesis. In the present study, we demonstrated that transforming growth factor-beta induced (TGFBI) suppresses angiogenesis stimulated by adipocyte-conditioned medium (Ad-CM), both in vitro and in vivo. TGFBI knockout (KO) mice exhibited increased numbers of blood vessels in adipose tissue, and blood vessels from these mice showed enhanced infiltration into Matrigel containing Ad-CM. The treatment of Ad-CM-stimulated SVEC-10 endothelial cells with TGFBI protein reduced migration and tube-forming activity. TGFBI protein suppressed the activation of the Src and extracellular signaling-related kinase signaling pathways of these SVEC-10 endothelial cells. Our findings indicated that TGFBI inhibited adipose angiogenesis by suppressing the activation of Src and ERK signaling pathways, possibly because of the stimulation of the angiogenic activity of endothelial cells.
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Affiliation(s)
- Seul Gi Lee
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jin Soo Kim
- National Institute for Korean Medicine Development, Kyeongsan, 38540, Republic of Korea
| | - Ha-Jeong Kim
- Department of Physiology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - David D Schlaepfer
- Moores Cancer Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - In-San Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea.,Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Ju-Ock Nam
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea.
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41
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A Novel Hypothesis and Characterization to Isolate Microvascular Endothelial Cells Simultaneously with Adipose-Derived Stem Cells from the Human Adipose-Derived Stromal Vascular Fraction. Tissue Eng Regen Med 2021; 18:429-440. [PMID: 33877617 DOI: 10.1007/s13770-021-00332-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/20/2021] [Accepted: 01/28/2021] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND Angiogenesis and vasculogenesis are essential processes for successful tissue regeneration in tissue engineering and regenerative medicine. The adipose-derived stromal vascular fraction (SVF) is not only a source of adipose stem cells (ASC) but also a suitable source of microvascular endothelial cells because it is a rich capillary network. So, we propose a new hypothesis for isolating adipose-derived human microvascular endothelial cells (HMVEC-A) from the SVF and developed a dual isolation system that isolates two cell types from one tissue. METHOD To isolate HMVEC-A, we analyzed the supernatant discarded when ASC is isolated from the adipose-derived SVF. Based on this analysis, we assumed that the SVF adherent to the bottom of the culture plate was divided into two fractions: the stromal fraction as the ASC-rich fraction, and the vascular fraction (VF) as the endothelial cells-rich fraction floating in the culture supernatant. VF isolation was optimized and the efficiency was compared, and the endothelial cells characteristics of HMVEC-A were confirmed by flow cytometric analysis, immunocytochemistry (ICC), a DiI-acetylated low-density lipoprotein (DiI-Ac-LDL) uptake, and in vitro tube formation assay. RESULTS Consistent with the hypothesis, we found a large population of HMVEC-A in the VF and isolated these HMVEC-A by our isolation method. Additionally, this method had higher yields and shorter doubling times than other endothelial cells isolation methods and showed typical morphological and phenotypic characteristics of endothelial cells. CONCLUSION Cells obtained by the method according to our hypothesis can be applied as a useful source for studies such as tissue-to-tissue networks, angiogenesis and tissue regeneration, patient-specific cell therapy, and organoid chips.
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42
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Abstract
The thrombospondin family comprises of five multifunctional glycoproteins, whose best-studied member is thrombospondin 1 (TSP1). This matricellular protein is a potent antiangiogenic agent that inhibits endothelial migration and proliferation, and induces endothelial apoptosis. Studies have demonstrated a regulatory role of TSP1 in cell migration and in activation of the latent transforming growth factor beta 1 (TGFβ1). These functions of TSP1 translate into its broad modulation of immune processes. Further, imbalances in immune regulation have been increasingly linked to pathological conditions such as obesity and diabetes mellitus. While most studies in the past have focused on the role of TSP1 in cancer and inflammation, recently published data have revealed new insights about the role of TSP1 in physiological and metabolic disorders. Here, we highlight recent findings that associate TSP1 and its receptors to obesity, diabetes, and cardiovascular diseases. TSP1 regulates nitric oxide, activates latent TGFβ1, and interacts with receptors CD36 and CD47, to play an important role in cell metabolism. Thus, TSP1 and its major receptors may be considered a potential therapeutic target for metabolic diseases.
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Affiliation(s)
- Linda S. Gutierrez
- Department of Biology, Wilkes University, Wilkes Barre, PA, United States
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43
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Fischer AW, Jaeckstein MY, Gottschling K, Heine M, Sass F, Mangels N, Schlein C, Worthmann A, Bruns OT, Yuan Y, Zhu H, Chen O, Ittrich H, Nilsson SK, Stefanicka P, Ukropec J, Balaz M, Dong H, Sun W, Reimer R, Scheja L, Heeren J. Lysosomal lipoprotein processing in endothelial cells stimulates adipose tissue thermogenic adaptation. Cell Metab 2021; 33:547-564.e7. [PMID: 33357458 DOI: 10.1016/j.cmet.2020.12.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/02/2020] [Accepted: 11/30/2020] [Indexed: 12/13/2022]
Abstract
In response to cold exposure, thermogenic adipocytes internalize large amounts of fatty acids after lipoprotein lipase-mediated hydrolysis of triglyceride-rich lipoproteins (TRL) in the capillary lumen of brown adipose tissue (BAT) and white adipose tissue (WAT). Here, we show that in cold-exposed mice, vascular endothelial cells in adipose tissues endocytose substantial amounts of entire TRL particles. These lipoproteins subsequently follow the endosomal-lysosomal pathway, where they undergo lysosomal acid lipase (LAL)-mediated processing. Endothelial cell-specific LAL deficiency results in impaired thermogenic capacity as a consequence of reduced recruitment of brown and brite/beige adipocytes. Mechanistically, TRL processing by LAL induces proliferation of endothelial cells and adipocyte precursors via beta-oxidation-dependent production of reactive oxygen species, which in turn stimulates hypoxia-inducible factor-1α-dependent proliferative responses. In conclusion, this study demonstrates a physiological role for TRL particle uptake into BAT and WAT and establishes endothelial lipoprotein processing as an important determinant of adipose tissue remodeling during thermogenic adaptation.
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Affiliation(s)
- Alexander W Fischer
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Michelle Y Jaeckstein
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kristina Gottschling
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Heine
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Frederike Sass
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Nils Mangels
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Schlein
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Anna Worthmann
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Oliver T Bruns
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, Neuherberg, Germany
| | - Yucheng Yuan
- Department of Chemistry, Brown University, Providence, RI, USA
| | - Hua Zhu
- Department of Chemistry, Brown University, Providence, RI, USA
| | - Ou Chen
- Department of Chemistry, Brown University, Providence, RI, USA
| | - Harald Ittrich
- Department of Diagnostic and Interventional Radiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan K Nilsson
- Department of Medical Biosciences, Umeå University, Umeå, Sweden
| | - Patrik Stefanicka
- Department of Otorhinolaryngology - Head and Neck Surgery, Comenius University, Bratislava, Slovakia
| | - Jozef Ukropec
- Institute of Experimental Endocrinology, Biomedical Research Center at the Slovak Academy of Sciences, Bratislava, Slovakia
| | - Miroslav Balaz
- Institute of Food, Nutrition and Health, ETH Zürich, Schwerzenbach, Switzerland
| | - Hua Dong
- Institute of Food, Nutrition and Health, ETH Zürich, Schwerzenbach, Switzerland
| | - Wenfei Sun
- Institute of Food, Nutrition and Health, ETH Zürich, Schwerzenbach, Switzerland
| | - Rudolf Reimer
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Ludger Scheja
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Joerg Heeren
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Herold J, Kalucka J. Angiogenesis in Adipose Tissue: The Interplay Between Adipose and Endothelial Cells. Front Physiol 2021; 11:624903. [PMID: 33633579 PMCID: PMC7900516 DOI: 10.3389/fphys.2020.624903] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 12/29/2020] [Indexed: 12/12/2022] Open
Abstract
Obesity is a worldwide health problem, and as its prevalence increases, so does the burden of obesity-associated co-morbidities like type 2 diabetes or cardiovascular diseases (CVDs). Adipose tissue (AT) is an endocrine organ embedded in a dense vascular network. AT regulates the production of hormones, angiogenic factors, and cytokines. During the development of obesity, AT expands through the increase in fat cell size (hypertrophy) and/or fat cell number (hyperplasia). The plasticity and expansion of AT is related to its angiogenic capacities. Angiogenesis is a tightly orchestrated process, which involves endothelial cell (EC) proliferation, migration, invasion, and new tube formation. The expansion of AT is accelerated by hypoxia, inflammation, and structural remodeling of blood vessels. The paracrine signaling regulates the functional link between ECs and adipocytes. Adipocytes can secrete both pro-angiogenic molecules, e.g., tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), or vascular endothelial growth factor (VEGF), and anti-angiogenic factors, e.g., serpins. If the pro-angiogenic molecules dominate, the angiogenesis is dysregulated and the endothelium becomes dysfunctional. However, if anti-angiogenic molecules are overexpressed relative to the angiogenic regulators, the angiogenesis is repressed, and AT becomes hypoxic. Furthermore, in the presence of chronic nutritional excess, endothelium loses its primary function and contributes to the inflammation and fibrosis of AT, which increases the risk for CVDs. This review discusses the current understanding of ECs function in AT, the cross-talk between adipose and ECs, and how obesity can lead to its dysfunction. Understanding the interplay of angiogenesis with AT can be an approach to therapy obesity and obesity-related diseases such as CVDs.
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Affiliation(s)
| | - Joanna Kalucka
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Aarhus Institute of Advanced Studies (AIAS), Aarhus University, Aarhus, Denmark
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Zhang Y, Sun Y, Wu Z, Xiong X, Zhang J, Ma J, Xiao S, Huang L, Yang B. Subcutaneous and intramuscular fat transcriptomes show large differences in network organization and associations with adipose traits in pigs. SCIENCE CHINA-LIFE SCIENCES 2021; 64:1732-1746. [PMID: 33527326 DOI: 10.1007/s11427-020-1824-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 09/14/2020] [Indexed: 11/28/2022]
Abstract
Subcutaneous fat (SCF) and intramuscular fat (IMF) deposition is relevant to health in humans, as well as meat production and quality in pigs. In this study, we generated RNA sequence data for 122 SCF, 120 IMF, and 87 longissimus dorsi muscle (LDM) samples using 155 F6 pigs from a specially designed heterogeneous population generated by intercrossing four highly selected European commercial breeds and four indigenous Chinese pig breeds. The phenotypes including waist back fat thickness and intramuscular fat content were also measured in the 155 F6 pigs. We found that the genes in SCF and IMF differed largely in both expression levels and network connectivity, and highlighted network modules that exhibited strongest gain of connectivity in SCF and IMF, containing genes that were associated with the immune process and DNA double-strand repair, respectively. We identified 215 SCF genes related to kinase inhibitor activity, mitochondrial fission, and angiogenesis, and 90 IMF genes related to lipolysis and fat cell differentiation, displayed a tissue-specific association with back fat thickness and IMF content, respectively. We found that cis-expression QTL for trait-associated genes in the two adipose tissues tended to have tissue-dependent predictability for the two adipose traits. Alternative splicing of genes was also found to be associated with SCF or IMF deposition, but the association was much less extensive than that based on expression levels. This study provides a better understanding of SCF and IMF gene transcription and network organization and identified critical genes and network modules that displayed tissue-specific associations with subcutaneous and intramuscular fat deposition. These features are helpful for designing breeding programs to genetically improve the two adipose traits in a balanced way.
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Affiliation(s)
- Yifeng Zhang
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Yingchun Sun
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Zhongzi Wu
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Xinwei Xiong
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Junjie Zhang
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Junwu Ma
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Shijun Xiao
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Lusheng Huang
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China.
| | - Bin Yang
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China.
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Li XH, Feng ST, Cao QH, Coffey JC, Baker ME, Huang L, Fang ZN, Qiu Y, Lu BL, Chen ZH, Li Y, Bettenworth D, Iacucci M, Sun CH, Ghosh S, Rieder F, Chen MH, Li ZP, Mao R. Degree of Creeping Fat Assessed by Computed Tomography Enterography is Associated with Intestinal Fibrotic Stricture in Patients with Crohn's Disease: A Potentially Novel Mesenteric Creeping Fat Index. J Crohns Colitis 2021; 15:1161-1173. [PMID: 33411893 PMCID: PMC8427713 DOI: 10.1093/ecco-jcc/jjab005] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Emerging evidence points to a link between creeping fat and the pathogenesis of Crohn's disease [CD]. Non-invasive assessment of the severity of creeping fat on cross-sectional imaging modality has seldom been investigated. This study aimed to develop and characterize a novel mesenteric creeping fat index [MCFI] based on computed tomography [CT] in CD patients. METHODS MCFI was developed based on vascular findings on CT in a retrospective cohort [n = 91] and validated in a prospective cohort [n = 30]. The severity of creeping fat was graded based on the extent to which mesenteric fat extended around the intestinal circumference using the vessels in the fat as a marker. The accuracy of MCFI was assessed by comparing it with the degree of creeping fat observed in surgical specimens. The relationship between MCFI and fibrostenosis was characterized by determining if these correlated. The accuracy of MCFI was compared with other radiographic indices [i.e. visceral to subcutaneous fat area ratio and fibrofatty proliferation score]. RESULTS In the retrospective cohort, MCFI had moderate accuracy in differentiating moderate-severe from mild fibrostenosis (area under the receiver operating characteristic [ROC] curve [AUC] = 0.799; p = 0.000). ROC analysis in the retrospective cohort identified a threshold MCFI of > 3 which accurately differentiated fibrostenosis severity in the prospective cohort [AUC = 0.756; p = 0.018]. An excellent correlation was shown between MCFI and the extent of fat wrapping in specimens in the prospective cohort [r = 0.840, p = 0.000]. Neither visceral to subcutaneous fat area ratio nor fibrofatty proliferation score correlated well with the degree of intestinal fibrosis. CONCLUSIONS MCFI can accurately characterize the extent of mesenteric fat wrapping in surgical specimens. It may become another non-invasive measure of CD fibrostenosis.
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Affiliation(s)
- Xue-Hua Li
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Shi-Ting Feng
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Qing-Hua Cao
- Department of Pathology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - J Calvin Coffey
- Department of Surgery, University Hospital Group Limerick and School of Medicine, University of Limerick, Limerick, Ireland
| | - Mark E Baker
- Section of Abdominal Imaging, Imaging Institute, Digestive Disease Institute and Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Li Huang
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Zhuang-Nian Fang
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Yun Qiu
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Bao-Lan Lu
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Zhi-Hui Chen
- Department of Gastrointestinal and Pancreatic Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Yi Li
- Center for Inflammatory Bowel Diseases, Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, People’s Republic of China
| | - Dominik Bettenworth
- Department of Medicine B for Gastroenterology and Hepatology, University Hospital Münster, Münster, Germany
| | - Marietta Iacucci
- NIHR Biomedical Research Institute, Institute of Translational Medicine, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, UK
| | - Can-Hui Sun
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Subrata Ghosh
- NIHR Biomedical Research Institute, Institute of Translational Medicine, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, UK
| | - Florian Rieder
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Min-Hu Chen
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Zi-Ping Li
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Ren Mao
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China,Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio, USA,Corresponding author: Ren Mao, The First Affiliated Hospital, Sun Yat-Sen University, 58 Zhongshan Road 2nd, Guangzhou 510080, People’s Republic of China; Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio, USA. Tel: 86-20-87755766-8471; Fax: 86-20-87615805;
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Impaired capillary tube formation induced by elevated secretion of IL8 involves altered signaling via the CXCR1/PI3K/MMP2 pathway. Mol Biol Rep 2021; 48:601-610. [PMID: 33411234 DOI: 10.1007/s11033-020-06104-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 12/18/2020] [Indexed: 10/22/2022]
Abstract
Angiogenesis is a multistep process requiring endothelial cell activation, migration, proliferation and tube formation. We recently reported that elevated secretion of interlukin 8 (IL8) by myotubes (MT) from subjects with Type-2 Diabetes (T2D) reduced angiogenesis by human umbilical vein endothelial cells (HUVEC) and human skeletal muscle explants. This lower vascularization was mediated through impaired activation of the phosphatidylinositol 3-kinase (PI3K)-pathway. We sought to investigate additional signaling elements that might mediate reduced angiogenesis. HUVEC were exposed to levels of IL8 equal to those secreted by MT from non-diabetic (ND) and T2D subjects and the involvement of components in the angiogenic response pathway examined. Cellular content of reactive oxygen species and Nitrate secretion were similar after treatment with [ND-IL8] and [T2D-IL8]. CXCR1 protein was down-regulated after treatment with [T2D-IL8] (p < 0.01 vs [ND-IL8] treatment); CXCR2 expression was unaltered. Addition of neutralizing antibodies against CXCR1 and CXCR2 to HUVEC treated with IL8 confirmed that CXCR1 alone mediated the angiogenic response to IL8. A key modulator of angiogenesis is matrix metalloproteinase-2 (MMP2). MMP2 secretion was higher after treatment with [ND-IL8] vs [T2D-IL8] (p < 0.01). MMP2 inhibition reduced tube formation to greater extent with [ND-IL8] than with [T2D-IL8] (p < 0.005). The PI3K-pathway inhibitor LY294002 reduced IL8-induced MMP2 release. IL8 regulation of MMP2 release was CXCR1 dependent, as anti-CXCR1 significantly reduced MMP2 release (p < 0.05). These results suggest that high levels of IL8 secreted by T2D MT trigger reduced capillarization via lower activation of a CXCR1-PI3K pathway, followed by impaired release and activity of MMP2.
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48
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Chen HJ, Li GL, Zhang WX, Fan J, Hu L, Zhang L, Zhang J, Yan YE. Maternal nicotine exposure during pregnancy and lactation induces brown adipose tissue whitening in female offspring. Toxicol Appl Pharmacol 2020; 409:115298. [PMID: 33091441 DOI: 10.1016/j.taap.2020.115298] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 10/11/2020] [Accepted: 10/16/2020] [Indexed: 02/06/2023]
Abstract
Maternal nicotine exposure during pregnancy and lactation is associated with obesity in female offspring. Brown adipose tissue (BAT) is related to energy metabolism and obesity. In this study, we explored the mechanism of maternal nicotine exposure on BAT "whitening" in female offspring. Pregnant rats were randomly assigned to nicotine (1.0 mg/kg twice per day, subcutaneous administration) or control groups. The weight, structure, and microvascular density of interscapular BAT (iBAT) and the expression of PGC-1αUCP1 signals, mitochondrial biogenesis-related genes and angiogenesis-related genes were tested in 4- and 26-week-aged female offspring. In vitro, C3H10T1/2 cells were induced to differentiate into mature brown adipocytes, and 0-50 μM nicotine was treated on cells during the differentiation process. Nicotine-exposed females had higher iBAT weight, white-like adipocytes and abnormal mitochondrial structure in iBAT at 26 weeks rather than 4 weeks. The PGC-1αUCP1 signals and brown-like genes were down-regulated at 26 weeks, but the microvascular density and the expression of pro-angiogenic factors reduced more at 4 weeks in the nicotine group. In vitro, 50 μM nicotine significantly decreased the expression of PGC-1αUCP1 signals and angiogenesis-related genes. In conclusion, maternal nicotine exposure during pregnancy and lactation led to the "whitening" of BAT in adult female offspring: nicotine decreased BAT angiogenesis in the early development stage, and then, the impairment of blood vessels programed for the reduction of BAT phenotype through down-regulating the PGC-1αUCP1 signals in adulthood. This impairment of BAT may be a potential mechanism of nicotine-induced obesity in female offspring.
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Affiliation(s)
- Hui-Jian Chen
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Gai-Ling Li
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Wan-Xia Zhang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Jie Fan
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Li Hu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Li Zhang
- Demonstration Center for Experimental Basic Medicine Education, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Jing Zhang
- Center for Animal Experiment/Animal Biosafety Level 3 Laboratory, Wuhan University, Wuhan 430071, China
| | - You-E Yan
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China.
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Li PH, Zhang R, Cheng LQ, Liu JJ, Chen HZ. Metabolic regulation of immune cells in proinflammatory microenvironments and diseases during ageing. Ageing Res Rev 2020; 64:101165. [PMID: 32898718 DOI: 10.1016/j.arr.2020.101165] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 08/21/2020] [Accepted: 08/26/2020] [Indexed: 02/07/2023]
Abstract
The process of ageing includes molecular changes within cells and interactions between cells, eventually resulting in age-related diseases. Although various cells (immune cells, parenchymal cells, fibroblasts and endothelial cells) in tissues secrete proinflammatory signals in age-related diseases, immune cells are the major contributors to inflammation. Many studies have emphasized the role of metabolic dysregulation in parenchymal cells in age-related inflammatory diseases. However, few studies have discussed metabolic modifications in immune cells during ageing. In this review, we introduce the metabolic dysregulation of major nutrients (glucose, lipids, and amino acids) within immune cells during ageing, which leads to dysfunctional NAD + metabolism that increases immune cell senescence and leads to the acquisition of the corresponding senescence-associated secretory phenotype (SASP). We then focus on senescent immune cell interactions with parenchymal cells and the extracellular matrix and their involvement in angiogenesis, which lead to proinflammatory microenvironments in tissues and inflammatory diseases at the systemic level. Elucidating the roles of metabolic modifications in immune cells during ageing will provide new insights into the mechanisms of ageing and therapeutic directions for age-related inflammatory diseases.
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Affiliation(s)
- Pei-Heng Li
- Department of Internal Medicine, Peking Union Medical college Hospital, Beijing, China; State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ran Zhang
- Buck Institute for Research on Ageing, Novato, United States
| | - Li-Qin Cheng
- Department of Microbiology, Tumor and Cell Biology, Centre for Translational Microbiome Research, Karolinska Institutet, Stockholm, Sweden
| | - Jin-Jing Liu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, China.
| | - Hou-Zao Chen
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
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50
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Rojas-Rodriguez R, Ziegler R, DeSouza T, Majid S, Madore AS, Amir N, Pace VA, Nachreiner D, Alfego D, Mathew J, Leung K, Moore Simas TA, Corvera S. PAPPA-mediated adipose tissue remodeling mitigates insulin resistance and protects against gestational diabetes in mice and humans. Sci Transl Med 2020; 12:eaay4145. [PMID: 33239385 PMCID: PMC8375243 DOI: 10.1126/scitranslmed.aay4145] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 04/25/2020] [Accepted: 10/21/2020] [Indexed: 12/11/2022]
Abstract
Pregnancy is a physiological state of continuous adaptation to changing maternal and fetal nutritional needs, including a reduction of maternal insulin sensitivity allowing for appropriately enhanced glucose availability to the fetus. However, excessive insulin resistance in conjunction with insufficient insulin secretion results in gestational diabetes mellitus (GDM), greatly increasing the risk for pregnancy complications and predisposing both mothers and offspring to future metabolic disease. Here, we report a signaling pathway connecting pregnancy-associated plasma protein A (PAPPA) with adipose tissue expansion in pregnancy. Adipose tissue plays a central role in the regulation of insulin sensitivity, and we show that, in both mice and humans, pregnancy caused remodeling of adipose tissue evidenced by altered adipocyte size, vascularization, and in vitro expansion capacity. PAPPA is known to be a metalloprotease secreted by human placenta that modulates insulin-like growth factor (IGF) bioavailability through prolteolysis of IGF binding proteins (IGFBPs) 2, 4, and 5. We demonstrate that recombinant PAPPA can stimulate ex vivo human adipose tissue expansion in an IGFBP-5- and IGF-1-dependent manner. Moreover, mice lacking PAPPA displayed impaired adipose tissue remodeling, pregnancy-induced insulin resistance, and hepatic steatosis, recapitulating multiple aspects of human GDM. In a cohort of 6361 pregnant women, concentrations of circulating PAPPA are inversely correlated with glycemia and odds of developing GDM. These data identify PAPPA and the IGF signaling pathway as necessary for the regulation of maternal adipose tissue physiology and systemic glucose homeostasis, with consequences for long-term metabolic risk and potential for therapeutic use.
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Affiliation(s)
- Raziel Rojas-Rodriguez
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA
- Graduate School of Biomedical Sciences, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Rachel Ziegler
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Tiffany DeSouza
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Sana Majid
- Clinical Translational Research Pathway, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Aylin S Madore
- Departments of Obstetrics and Gynecology, University of Massachusetts Medical School and UMass Memorial Healthcare, Worcester, MA 01605, USA
| | - Nili Amir
- Departments of Obstetrics and Gynecology, University of Massachusetts Medical School and UMass Memorial Healthcare, Worcester, MA 01605, USA
| | - Veronica A Pace
- Clinical Translational Research Pathway, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Daniel Nachreiner
- Clinical Translational Research Pathway, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - David Alfego
- Division of Data Sciences and Technology, IT, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Jomol Mathew
- Division of Data Sciences and Technology, IT, University of Massachusetts Medical School, Worcester, MA 01605, USA
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Katherine Leung
- Departments of Obstetrics and Gynecology, University of Massachusetts Medical School and UMass Memorial Healthcare, Worcester, MA 01605, USA
| | - Tiffany A Moore Simas
- Departments of Obstetrics and Gynecology, University of Massachusetts Medical School and UMass Memorial Healthcare, Worcester, MA 01605, USA
| | - Silvia Corvera
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA.
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