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Shrestha D, Kim E, Shrestha KK, Suh SS, Kim SH, Seo JB. Methanol extract of Elsholtzia fruticosa promotes 3T3-L1 preadipocyte differentiation. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2024; 66:204-218. [PMID: 38618027 PMCID: PMC11007459 DOI: 10.5187/jast.2024.e6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 04/16/2024]
Abstract
Elsholtzia fruticosa (EF) is present in tropical regions throughout South Asian countries as well as the Himalayas. Although it has been used as a traditional medicine to treat digestive, respiratory, and inflammatory issues, its effect on preadipocyte differentiation is unknown. In this study, we examined the effects of a methanol extract prepared from EF on the differentiation of 3T3-L1 preadipocytes. Cell differentiation was assessed by microscopic observation and oil-red O staining. The expression of adipogenic and lipogenic genes, including PPARγ and C/EBPα, was measured by western blot analysis and quantitative real-time polymerase chain reaction (qRT-PCR), to provide insight into adipogenesis and lipogenesis mechanisms. The results indicated that EF promotes the differentiation of 3T3-L1 preadipocytes, with elevated lipid accumulation occurring in a concentration-dependent manner without apparent cytotoxicity. EF enhances the expression of adipogenic and lipogenic genes, including PPARγ, FABP4, adiponectin, and FAS, at the mRNA and protein levels. The effect of EF was more pronounced during the early and middle stages of 3T3-L1 cell differentiation. Treatment with EF decreased C/EBP homologous protein (CHOP) mRNA and protein levels, while increasing C/EBPα and PPARγ expression. Treatment with EF resulted in the upregulation of cyclin E and CDK2 gene expression within 24 h, followed by a decrease at 48 h, demonstrating the early-stage impact of EF. A concomitant increase in cyclin-D1 levels was observed compared with untreated cells, indicating that EF modulates lipogenic and adipogenic genes through intricate mechanisms involving CHOP and cell cycle pathways. In summary, EF induces the differentiation of 3T3-L1 preadipocytes by increasing the expression of adipogenic and lipogenic genes, possibly through CHOP and cell cycle-dependent mechanisms.
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Affiliation(s)
- Deumaya Shrestha
- Department of Biosciences, Mokpo National
University, Jeonnam 58554, Korea
| | - Eunbin Kim
- Department of Biomedicine, Health &
Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research
Institute, Mokpo National University, Jeonnam 58554,
Korea
| | | | - Sung-Suk Suh
- Department of Biosciences, Mokpo National
University, Jeonnam 58554, Korea
- Department of Biomedicine, Health &
Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research
Institute, Mokpo National University, Jeonnam 58554,
Korea
| | - Sung-Hak Kim
- Department of Animal Science, Chonnam
National University, Gwangju 61186, Korea
| | - Jong Bae Seo
- Department of Biosciences, Mokpo National
University, Jeonnam 58554, Korea
- Department of Biomedicine, Health &
Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research
Institute, Mokpo National University, Jeonnam 58554,
Korea
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Parrillo L, Spinelli R, Longo M, Zatterale F, Santamaria G, Leone A, Campitelli M, Raciti GA, Beguinot F. The Transcription Factor HOXA5: Novel Insights into Metabolic Diseases and Adipose Tissue Dysfunction. Cells 2023; 12:2090. [PMID: 37626900 PMCID: PMC10453582 DOI: 10.3390/cells12162090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/03/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
The transcription factor HOXA5, from the HOX gene family, has long been studied due to its critical role in physiological activities in normal cells, such as organ development and body patterning, and pathological activities in cancer cells. Nonetheless, recent evidence supports the hypothesis of a role for HOXA5 in metabolic diseases, particularly in obesity and type 2 diabetes (T2D). In line with the current opinion that adipocyte and adipose tissue (AT) dysfunction belong to the group of primary defects in obesity, linking this condition to an increased risk of insulin resistance (IR) and T2D, the HOXA5 gene has been shown to regulate adipocyte function and AT remodeling both in humans and mice. Epigenetics adds complexity to HOXA5 gene regulation in metabolic diseases. Indeed, epigenetic mechanisms, specifically DNA methylation, influence the dynamic HOXA5 expression profile. In human AT, the DNA methylation profile at the HOXA5 gene is associated with hypertrophic obesity and an increased risk of developing T2D. Thus, an inappropriate HOXA5 gene expression may be a mechanism causing or maintaining an impaired AT function in obesity and potentially linking obesity to its associated disorders. In this review, we integrate the current evidence about the involvement of HOXA5 in regulating AT function, as well as its association with the pathogenesis of obesity and T2D. We also summarize the current knowledge on the role of DNA methylation in controlling HOXA5 expression. Moreover, considering the susceptibility of epigenetic changes to reversal through targeted interventions, we discuss the potential therapeutic value of targeting HOXA5 DNA methylation changes in the treatment of metabolic diseases.
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Affiliation(s)
- Luca Parrillo
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy; (R.S.); (M.L.); (F.Z.); (A.L.); (M.C.); (G.A.R.)
| | - Rosa Spinelli
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy; (R.S.); (M.L.); (F.Z.); (A.L.); (M.C.); (G.A.R.)
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, 41345 Gothenburg, Sweden
| | - Michele Longo
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy; (R.S.); (M.L.); (F.Z.); (A.L.); (M.C.); (G.A.R.)
| | - Federica Zatterale
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy; (R.S.); (M.L.); (F.Z.); (A.L.); (M.C.); (G.A.R.)
| | - Gianluca Santamaria
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy;
| | - Alessia Leone
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy; (R.S.); (M.L.); (F.Z.); (A.L.); (M.C.); (G.A.R.)
| | - Michele Campitelli
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy; (R.S.); (M.L.); (F.Z.); (A.L.); (M.C.); (G.A.R.)
| | - Gregory Alexander Raciti
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy; (R.S.); (M.L.); (F.Z.); (A.L.); (M.C.); (G.A.R.)
| | - Francesco Beguinot
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Department of Translational Medical Sciences, Federico II University of Naples, 80131 Naples, Italy; (R.S.); (M.L.); (F.Z.); (A.L.); (M.C.); (G.A.R.)
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3
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Pepe RB, Lottenberg AM, Fujiwara CTH, Beyruti M, Cintra DE, Machado RM, Rodrigues A, Jensen NSO, Caldas APS, Fernandes AE, Rossoni C, Mattos F, Motarelli JHF, Bressan J, Saldanha J, Beda LMM, Lavrador MSF, Del Bosco M, Cruz P, Correia PE, Maximino P, Pereira S, Faria SL, Piovacari SMF. Position statement on nutrition therapy for overweight and obesity: nutrition department of the Brazilian association for the study of obesity and metabolic syndrome (ABESO-2022). Diabetol Metab Syndr 2023; 15:124. [PMID: 37296485 DOI: 10.1186/s13098-023-01037-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 03/23/2023] [Indexed: 06/12/2023] Open
Abstract
Obesity is a chronic disease resulting from multifactorial causes mainly related to lifestyle (sedentary lifestyle, inadequate eating habits) and to other conditions such as genetic, hereditary, psychological, cultural, and ethnic factors. The weight loss process is slow and complex, and involves lifestyle changes with an emphasis on nutritional therapy, physical activity practice, psychological interventions, and pharmacological or surgical treatment. Because the management of obesity is a long-term process, it is essential that the nutritional treatment contributes to the maintenance of the individual's global health. The main diet-related causes associated with excess weight are the high consumption of ultraprocessed foods, which are high in fats, sugars, and have high energy density; increased portion sizes; and low intake of fruits, vegetables, and grains. In addition, some situations negatively interfere with the weight loss process, such as fad diets that involve the belief in superfoods, the use of teas and phytotherapics, or even the avoidance of certain food groups, as has currently been the case for foods that are sources of carbohydrates. Individuals with obesity are often exposed to fad diets and, on a recurring basis, adhere to proposals with promises of quick solutions, which are not supported by the scientific literature. The adoption of a dietary pattern combining foods such as grains, lean meats, low-fat dairy, fruits, and vegetables, associated with an energy deficit, is the nutritional treatment recommended by the main international guidelines. Moreover, an emphasis on behavioral aspects including motivational interviewing and the encouragement for the individual to develop skills will contribute to achieve and maintain a healthy weight. Therefore, this Position Statement was prepared based on the analysis of the main randomized controlled studies and meta-analyses that tested different nutrition interventions for weight loss. Topics in the frontier of knowledge such as gut microbiota, inflammation, and nutritional genomics, as well as the processes involved in weight regain, were included in this document. This Position Statement was prepared by the Nutrition Department of the Brazilian Association for the Study of Obesity and Metabolic Syndrome (ABESO), with the collaboration of dietitians from research and clinical fields with an emphasis on strategies for weight loss.
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Affiliation(s)
- Renata Bressan Pepe
- Grupo de Obesidade e Sindrome Metabolica, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, SP, Brazil
| | - Ana Maria Lottenberg
- Laboratório de Lipides (LIM10), Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil.
- Nutrition Department of the Brazilian Association for the Study of Obesity and Metabolic Syndrome (ABESO), Rua Mato Grosso 306 - cj 1711, Sao Paulo, SP, 01239-040, Brazil.
| | - Clarissa Tamie Hiwatashi Fujiwara
- Grupo de Obesidade e Sindrome Metabolica, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, SP, Brazil
| | - Mônica Beyruti
- Brazilian Association for the Study of Obesity and Metabolic Syndrome (ABESO), São Paulo, SP, Brazil
| | - Dennys Esper Cintra
- Centro de Estudos em Lipídios e Nutrigenômica - CELN - University of Campinas, Campinas, SP, Brazil
| | - Roberta Marcondes Machado
- Liga Acadêmica de Controle de Diabetes do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Alessandra Rodrigues
- Brazilian Association for the Study of Obesity and Metabolic Syndrome (ABESO), São Paulo, SP, Brazil
| | - Natália Sanchez Oliveira Jensen
- Liga Acadêmica de Controle de Diabetes do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | | | - Ariana Ester Fernandes
- Grupo de Obesidade e Sindrome Metabolica, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, SP, Brazil
| | - Carina Rossoni
- Instituto de Saúde Ambiental, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - Fernanda Mattos
- Programa de Obesidade e Cirurgia Bariátrica do Hospital Universitário Clementino Fraga Filho da UFRJ, Rio de Janeiro, RJ, Brazil
| | - João Henrique Fabiano Motarelli
- Núcleo de Estudos e Extensão em Comportamento Alimentar e Obesidade (NEPOCA) da Universidade de São Paulo - FMRP/USP, Ribeirão Preto, Brazil
| | - Josefina Bressan
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | | | - Lis Mie Masuzawa Beda
- Brazilian Association for the Study of Obesity and Metabolic Syndrome (ABESO), São Paulo, SP, Brazil
| | - Maria Sílvia Ferrari Lavrador
- Liga Acadêmica de Controle de Diabetes do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Mariana Del Bosco
- Brazilian Association for the Study of Obesity and Metabolic Syndrome (ABESO), São Paulo, SP, Brazil
| | - Patrícia Cruz
- Grupo de Obesidade e Sindrome Metabolica, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, SP, Brazil
| | | | - Priscila Maximino
- Instituto PENSI - Fundação José Luiz Egydio Setúbal, Instituto Pensi, Fundação José Luiz Egydio Setúbal, Hospital Infantil Sabará, São Paulo, SP, Brazil
| | - Silvia Pereira
- Núcleo de Saúde Alimentar da Sociedade Brasileira de Cirurgia Bariátrica e Metabólica, São Paulo, Brazil
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4
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Yang J, Liang C, Liu L, Wang L, Yu G. High-Fat Diet Related Lung Fibrosis-Epigenetic Regulation Matters. Biomolecules 2023; 13:biom13030558. [PMID: 36979493 PMCID: PMC10046645 DOI: 10.3390/biom13030558] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/12/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Pulmonary fibrosis (PF) is an interstitial lung disease characterized by the destruction of the pulmonary parenchyma caused by excessive extracellular matrix deposition. Despite the well-known etiological factors such as senescence, aberrant epithelial cell and fibroblast activation, and chronic inflammation, PF has recently been recognized as a metabolic disease and abnormal lipid signature was observed both in serum and bronchoalveolar lavage fluid (BALF) of PF patients and mice PF model. Clinically, observational studies suggest a significant link between high-fat diet (HFD) and PF as manifested by high intake of saturated fatty acids (SFAs) and meat increases the risk of PF and mice lung fibrosis. However, the possible mechanisms between HFD and PF remain unclear. In the current review we emphasize the diversity effects of the epigenetic dysregulation induced by HFD on the fibrotic factors such as epithelial cell injury, abnormal fibroblast activation and chronic inflammation. Finally, we discuss the potential ways for patients to improve their conditions and emphasize the prospect of targeted therapy based on epigenetic regulation for scientific researchers or drug developers.
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Affiliation(s)
- Juntang Yang
- State Key Laboratory of Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, China
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, Henan Normal University, Xinxiang 453007, China
| | - Chenxi Liang
- State Key Laboratory of Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, China
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, Henan Normal University, Xinxiang 453007, China
| | - Lulu Liu
- State Key Laboratory of Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, China
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, Henan Normal University, Xinxiang 453007, China
| | - Lan Wang
- State Key Laboratory of Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, China
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, Henan Normal University, Xinxiang 453007, China
| | - Guoying Yu
- State Key Laboratory of Cell Differentiation and Regulation, College of Life Science, Henan Normal University, Xinxiang 453007, China
- Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, Henan Normal University, Xinxiang 453007, China
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5
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Zatterale F, Raciti GA, Prevenzano I, Leone A, Campitelli M, De Rosa V, Beguinot F, Parrillo L. Epigenetic Reprogramming of the Inflammatory Response in Obesity and Type 2 Diabetes. Biomolecules 2022; 12:biom12070982. [PMID: 35883538 PMCID: PMC9313117 DOI: 10.3390/biom12070982] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/16/2022] Open
Abstract
For the past several decades, the prevalence of obesity and type 2 diabetes (T2D) has continued to rise on a global level. The risk contributing to this pandemic implicates both genetic and environmental factors, which are functionally integrated by epigenetic mechanisms. While these conditions are accompanied by major abnormalities in fuel metabolism, evidence indicates that altered immune cell functions also play an important role in shaping of obesity and T2D phenotypes. Interestingly, these events have been shown to be determined by epigenetic mechanisms. Consistently, recent epigenome-wide association studies have demonstrated that immune cells from obese and T2D individuals feature specific epigenetic profiles when compared to those from healthy subjects. In this work, we have reviewed recent literature reporting epigenetic changes affecting the immune cell phenotype and function in obesity and T2D. We will further discuss therapeutic strategies targeting epigenetic marks for treating obesity and T2D-associated inflammation.
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Affiliation(s)
- Federica Zatterale
- Department of Translational Medical Science, Federico II University of Naples, 80131 Naples, Italy; (F.Z.); (G.A.R.); (I.P.); (A.L.); (M.C.)
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy;
| | - Gregory Alexander Raciti
- Department of Translational Medical Science, Federico II University of Naples, 80131 Naples, Italy; (F.Z.); (G.A.R.); (I.P.); (A.L.); (M.C.)
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy;
| | - Immacolata Prevenzano
- Department of Translational Medical Science, Federico II University of Naples, 80131 Naples, Italy; (F.Z.); (G.A.R.); (I.P.); (A.L.); (M.C.)
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy;
| | - Alessia Leone
- Department of Translational Medical Science, Federico II University of Naples, 80131 Naples, Italy; (F.Z.); (G.A.R.); (I.P.); (A.L.); (M.C.)
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy;
| | - Michele Campitelli
- Department of Translational Medical Science, Federico II University of Naples, 80131 Naples, Italy; (F.Z.); (G.A.R.); (I.P.); (A.L.); (M.C.)
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy;
| | - Veronica De Rosa
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy;
| | - Francesco Beguinot
- Department of Translational Medical Science, Federico II University of Naples, 80131 Naples, Italy; (F.Z.); (G.A.R.); (I.P.); (A.L.); (M.C.)
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy;
- Correspondence: (F.B.); (L.P.); Tel.: +39-081-746-3248 (F.B.); +39-081-746-3045 (L.P.)
| | - Luca Parrillo
- Department of Translational Medical Science, Federico II University of Naples, 80131 Naples, Italy; (F.Z.); (G.A.R.); (I.P.); (A.L.); (M.C.)
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy;
- Correspondence: (F.B.); (L.P.); Tel.: +39-081-746-3248 (F.B.); +39-081-746-3045 (L.P.)
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6
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Vyas H, Alcheikh A, Lowe G, Stevenson WS, Morgan NV, Rabbolini DJ. Prevalence and natural history of variants in the ANKRD26 gene: a short review and update of reported cases. Platelets 2022; 33:1107-1112. [PMID: 35587581 PMCID: PMC9555274 DOI: 10.1080/09537104.2022.2071853] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
ANKRD26 is a highly conserved gene located on chromosome 10p12.1 which has shown to play a role in normal megakaryocyte differentiation. ANKRD26-related thrombocytopenia, or thrombocytopenia 2, is an inherited thrombocytopenia with mild bleeding diathesis resulting from point mutations the 5ʹUTR of the ANKRD26 gene. Point mutations in the 5ʹUTR region have been shown to prevent transcription factor-mediated downregulation of ANKRD26 in normal megakaryocyte differentiation. Patients with ANKRD26-related thrombocytopenia have a predisposition to developing hematological malignancies, with acute myeloid leukemia and myelodysplastic syndrome most commonly described in the literature. We review the clinical features and biological mechanisms of ANKRD26-related thrombocytopenia and summarize known cases in the literature.
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Affiliation(s)
- Hrushikesh Vyas
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Ahmad Alcheikh
- Northern Blood Research Centre, Kolling Institute, University of Sydney, Sydney, Australia
| | - Gillian Lowe
- Comprehensive Care Haemophilia Centre, University Hospital Birmingham NHS Foundation Trust, Birmingham, UK
| | - William S Stevenson
- Northern Blood Research Centre, Kolling Institute, University of Sydney, Sydney, Australia.,Department of Haematology and Transfusion Medicine, Royal North Shore Hospital, Sydney, Australia
| | - Neil V Morgan
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - David J Rabbolini
- Northern Blood Research Centre, Kolling Institute, University of Sydney, Sydney, Australia
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7
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Spinelli R, Florese P, Parrillo L, Zatterale F, Longo M, D’Esposito V, Desiderio A, Nerstedt A, Gustafson B, Formisano P, Miele C, Raciti GA, Napoli R, Smith U, Beguinot F. ZMAT3 hypomethylation contributes to early senescence of preadipocytes from healthy first-degree relatives of type 2 diabetics. Aging Cell 2022; 21:e13557. [PMID: 35146866 PMCID: PMC8920444 DOI: 10.1111/acel.13557] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 12/16/2021] [Accepted: 01/09/2022] [Indexed: 12/18/2022] Open
Abstract
Senescence of adipose precursor cells (APC) impairs adipogenesis, contributes to the age-related subcutaneous adipose tissue (SAT) dysfunction, and increases risk of type 2 diabetes (T2D). First-degree relatives of T2D individuals (FDR) feature restricted adipogenesis, reflecting the detrimental effects of APC senescence earlier in life and rendering FDR more vulnerable to T2D. Epigenetics may contribute to these abnormalities but the underlying mechanisms remain unclear. In previous methylome comparison in APC from FDR and individuals with no diabetes familiarity (CTRL), ZMAT3 emerged as one of the top-ranked senescence-related genes featuring hypomethylation in FDR and associated with T2D risk. Here, we investigated whether and how DNA methylation changes at ZMAT3 promote early APC senescence. APC from FDR individuals revealed increases in multiple senescence markers compared to CTRL. Senescence in these cells was accompanied by ZMAT3 hypomethylation, which caused ZMAT3 upregulation. Demethylation at this gene in CTRL APC led to increased ZMAT3 expression and premature senescence, which were reverted by ZMAT3 siRNA. Furthermore, ZMAT3 overexpression in APC determined senescence and activation of the p53/p21 pathway, as observed in FDR APC. Adipogenesis was also inhibited in ZMAT3-overexpressing APC. In FDR APC, rescue of ZMAT3 methylation through senolytic exposure simultaneously downregulated ZMAT3 expression and improved adipogenesis. Interestingly, in human SAT, aging and T2D were associated with significantly increased expression of both ZMAT3 and the P53 senescence marker. Thus, DNA hypomethylation causes ZMAT3 upregulation in FDR APC accompanied by acquisition of the senescence phenotype and impaired adipogenesis, which may contribute to FDR predisposition for T2D.
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Affiliation(s)
- Rosa Spinelli
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Pasqualina Florese
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Luca Parrillo
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Federica Zatterale
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Michele Longo
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Vittoria D’Esposito
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Antonella Desiderio
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Annika Nerstedt
- Lundberg Laboratory for Diabetes Research Department of Molecular and Clinical Medicine Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Birgit Gustafson
- Lundberg Laboratory for Diabetes Research Department of Molecular and Clinical Medicine Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Pietro Formisano
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Claudia Miele
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Gregory Alexander Raciti
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
| | - Raffaele Napoli
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
| | - Ulf Smith
- Lundberg Laboratory for Diabetes Research Department of Molecular and Clinical Medicine Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Francesco Beguinot
- Department of Translational Medical Sciences Federico II University of Naples Naples Italy
- URT Genomics of Diabetes Institute of Experimental Endocrinology and Oncology National Research Council Naples Italy
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8
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Epigenetic Dysregulation of the Homeobox A5 ( HOXA5) Gene Associates with Subcutaneous Adipocyte Hypertrophy in Human Obesity. Cells 2022; 11:cells11040728. [PMID: 35203377 PMCID: PMC8870634 DOI: 10.3390/cells11040728] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 02/14/2022] [Indexed: 12/28/2022] Open
Abstract
Along with insulin resistance and increased risk of type 2 diabetes (T2D), lean first-degree relatives of T2D subjects (FDR) feature impaired adipogenesis in subcutaneous adipose tissue (SAT) and subcutaneous adipocyte hypertrophy well before diabetes onset. The molecular mechanisms linking these events have only partially been clarified. In the present report, we show that silencing of the transcription factor Homeobox A5 (HOXA5) in human preadipocytes impaired differentiation in mature adipose cells in vitro. The reduced adipogenesis was accompanied by inappropriate WNT-signaling activation. Importantly, in preadipocytes from FDR individuals, HOXA5 expression was attenuated, with hypermethylation of the HOXA5 promoter region found responsible for its downregulation, as revealed by luciferase assay. Both HOXA5 gene expression and DNA methylation were significantly correlated with SAT adipose cell hypertrophy in FDR, whose increased adipocyte size marks impaired adipogenesis. In preadipocytes from FDR, the low HOXA5 expression negatively correlated with enhanced transcription of the WNT signaling downstream genes NFATC1 and WNT2B. In silico evidence indicated that NFATC1 and WNT2B were directly controlled by HOXA5. The HOXA5 promoter region also was hypermethylated in peripheral blood leukocytes from these same FDR individuals, which was further revealed in peripheral blood leukocytes from an independent group of obese subjects. Thus, HOXA5 controlled adipogenesis in humans by suppressing WNT signaling. Altered DNA methylation of the HOXA5 promoter contributed to restricted adipogenesis in the SAT of lean subjects who were FDR of type 2 diabetics and in obese individuals.
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9
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Kaimala S, Kumar CA, Allouh MZ, Ansari SA, Emerald BS. Epigenetic modifications in pancreas development, diabetes, and therapeutics. Med Res Rev 2022; 42:1343-1371. [PMID: 34984701 PMCID: PMC9306699 DOI: 10.1002/med.21878] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 11/24/2021] [Accepted: 12/18/2021] [Indexed: 12/26/2022]
Abstract
A recent International Diabetes Federation report suggests that more than 463 million people between 20 and 79 years have diabetes. Of the 20 million women affected by hyperglycemia during pregnancy, 84% have gestational diabetes. In addition, more than 1.1 million children or adolescents are affected by type 1 diabetes. Factors contributing to the increase in diabetes prevalence are complex and include contributions from genetic, environmental, and epigenetic factors. However, molecular regulatory mechanisms influencing the progression of an individual towards increased susceptibility to metabolic diseases such as diabetes are not fully understood. Recent studies suggest that the pathogenesis of diabetes involves epigenetic changes, resulting in a persistently dysregulated metabolic phenotype. This review summarizes the role of epigenetic mechanisms, mainly DNA methylation and histone modifications, in the development of the pancreas, their contribution to the development of diabetes, and the potential employment of epigenetic modulators in diabetes treatment.
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Affiliation(s)
- Suneesh Kaimala
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE
| | - Challagandla Anil Kumar
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE
| | - Mohammed Z Allouh
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE
| | - Suraiya Anjum Ansari
- Department of Biochemistry, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE.,Zayed Center for Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE
| | - Bright Starling Emerald
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE.,Zayed Center for Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE
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10
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Mishra P, Beura S, Ghosh R, Modak R. Nutritional Epigenetics: How Metabolism Epigenetically Controls Cellular Physiology, Gene Expression and Disease. Subcell Biochem 2022; 100:239-267. [PMID: 36301497 DOI: 10.1007/978-3-031-07634-3_8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The regulation of gene expression is a dynamic process that is influenced by both internal and external factors. Alteration in the epigenetic profile is a key mechanism in the regulation process. Epigenetic regulators, such as enzymes and proteins involved in posttranslational modification (PTM), use different cofactors and substrates derived from dietary sources. For example, glucose metabolism provides acetyl CoA, S-adenosylmethionine (SAM), α- ketoglutarate, uridine diphosphate (UDP)-glucose, adenosine triphosphate (ATP), nicotinamide adenine dinucleotide (NAD+), and fatty acid desaturase (FAD), which are utilized by chromatin-modifying enzymes in many intermediary metabolic pathways. Any alteration in the metabolic status of the cell results in the alteration of these metabolites, which causes dysregulation in the activity of chromatin regulators, resulting in the alteration of the epigenetic profile. Such long-term or repeated alteration of epigenetic profile can lead to several diseases, like cancer, insulin resistance and diabetes, cognitive impairment, neurodegenerative disease, and metabolic syndromes. Here we discuss the functions of key nutrients that contribute to epigenetic regulation and their role in pathophysiological conditions.
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Affiliation(s)
- Pragyan Mishra
- Infection and Epigenetics Group, School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, Odisha, India
| | - Shibangini Beura
- Infection and Epigenetics Group, School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, Odisha, India
| | - Ritu Ghosh
- Infection and Epigenetics Group, School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, Odisha, India
| | - Rahul Modak
- Infection and Epigenetics Group, School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, Odisha, India.
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11
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Viraragavan A, Willmer T, Patel O, Basson A, Johnson R, Pheiffer C. Cafeteria diet induces global and Slc27a3-specific hypomethylation in male Wistar rats. Adipocyte 2021; 10:108-118. [PMID: 33570456 PMCID: PMC7889207 DOI: 10.1080/21623945.2021.1886697] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Increased visceral adipose tissue (VAT) is associated with metabolic dysfunction, while subcutaneous adipose tissue (SAT) is considered protective. The mechanisms underlying these differences are not fully elucidated. This study aimed to investigate molecular differences in VAT and SAT of male Wistar rats fed a cafeteria diet (CD) or a standard rodent diet (STD) for three months. The expression of fatty acid metabolism genes was analysed by quantitative real-time PCR. Global and gene-specific DNA methylation was quantified using the Imprint® Methylated DNA Quantification Kit and pyrosequencing, respectively. Bodyweight, retroperitoneal fat mass, insulin resistance, leptin and triglyceride concentrations and adipocyte hypertrophy were higher in CD- compared to STD-fed rats. The expression of solute carrier family 27 member 3 (Slc27a3), a fatty acid transporter, was 9.6-fold higher in VAT and 6.3-fold lower in SAT of CD- versus STD-fed rats. Taqman probes confirmed increased Slc27a3 expression, while pyrosequencing showed Slc27a3 hypomethylation in VAT of CD- compared to STD-fed rats. The CD decreased global methylation in both VAT and SAT, although no depot differences were observed. Dysregulated fatty acid influx in VAT, in response to a CD, provides insight into the mechanisms underlying depot-differences in adipose tissue expansion during obesity and metabolic disease. Abbreviations: CD: cafeteria diet; E2F1: E2F Transcription Factor 1; EMSA: electrophoretic mobility shift assay; EGFR: epidermal growth factor receptor; GCF: GC-Rich Sequence DNA-Binding Factor; HOMA-IR: Homeostasis model for insulin resistance; NKX2-1: NK2 homeobox 1; PCR: Polymerase chain reaction; qRT-PCR: quantitative real-time PCR; RF: retroperitoneal fat; SAT: subcutaneous adipose tissue; Slc27a3: solute carrier family 27 member 3; STD: standard diet; TNFα: tumour necrosis factor alpha; TTS: transcriptional start site; T2D: Type 2 Diabetes; VAT: visceral adipose tissue; WT1 I: Wilms’ tumour protein 1
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Affiliation(s)
- Amsha Viraragavan
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
- Department of Biochemistry and Microbiology, University of Zululand, Kwa-Dlangezwa, South Africa
| | - Tarryn Willmer
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
- Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Oelfah Patel
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, University of Stellenbosch, Tygerberg, South Africa
| | - Albertus Basson
- Department of Biochemistry and Microbiology, University of Zululand, Kwa-Dlangezwa, South Africa
| | - Rabia Johnson
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
- Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Carmen Pheiffer
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
- Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg, South Africa
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12
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D'Esposito V, Ambrosio MR, Liguoro D, Perruolo G, Lecce M, Cabaro S, Aprile M, Marino A, Pilone V, Forestieri P, Miele C, Bruzzese D, Terracciano D, Beguinot F, Formisano P. In severe obesity, subcutaneous adipose tissue cell-derived cytokines are early markers of impaired glucose tolerance and are modulated by quercetin. Int J Obes (Lond) 2021; 45:1811-1820. [PMID: 33993191 DOI: 10.1038/s41366-021-00850-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 04/19/2021] [Accepted: 04/27/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Excessive adiposity provides an inflammatory environment. However, in people with severe obesity, how systemic and local adipose tissue (AT)-derived cytokines contribute to worsening glucose tolerance is not clear. METHODS Ninty-two severely obese (SO) individuals undergoing bariatric surgery were enrolled and subjected to detailed clinical phenotyping. Following an oral glucose tolerance test, participants were included in three groups, based on the presence of normal glucose tolerance (NGT), impaired glucose tolerance (IGT), or type 2 diabetes (T2D). Serum and subcutaneous AT (SAT) biopsies were obtained and mesenchymal stem cells (MSCs) were isolated, characterized, and differentiated in adipocytes in vitro. TNFA and PPARG mRNA levels were determined by qRT-PCR. Circulating, adipocyte- and MSC-released cytokines, chemokines, and growth factors were assessed by multiplex ELISA. RESULTS Serum levels of IL-9, IL-13, and MIP-1β were increased in SO individuals with T2D, as compared with those with either IGT or NGT. At variance, SAT samples obtained from SO individuals with IGT displayed levels of TNFA which were threefold higher compared to those with NGT, but not different from those with T2D. Elevated levels of TNFα were also found in differentiated adipocytes, isolated from the SAT specimens of individuals with IGT and T2D, compared to those with NGT. Consistent with the pro-inflammatory milieu, IL-1β and IP-10 secretion was significantly higher in adipocytes from individuals with IGT and T2D. Moreover, increased levels of TNFα, both mRNA and secreted protein were detected in MSCs obtained from IGT and T2D, compared to NGT SO individuals. Exposure of T2D and IGT-derived MSCs to the anti-inflammatory flavonoid quercetin reduced TNFα levels and was paralleled by a significant decrease of the secretion of inflammatory cytokines. CONCLUSION In severe obesity, enhanced SAT-derived inflammatory phenotype is an early step in the progression toward T2D and maybe, at least in part, attenuated by quercetin.
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Affiliation(s)
- Vittoria D'Esposito
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy.,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Maria Rosaria Ambrosio
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy.,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Domenico Liguoro
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy.,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Giuseppe Perruolo
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy.,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Manuela Lecce
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy.,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Serena Cabaro
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy.,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Marianna Aprile
- Institute of Genetics and Biophysics "Adriano Buzzati-Traverso," CNR, Naples, Italy
| | - Ada Marino
- Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Vincenzo Pilone
- Department of Medicine, Surgery and Dentistry, University of Salerno, Salerno, Italy
| | - Pietro Forestieri
- Department of Medicine, Surgery and Dentistry, University of Salerno, Salerno, Italy.,Department of Clinical Medicine and Surgery, "Federico II" University of Naples, Naples, Italy
| | - Claudia Miele
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy.,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Dario Bruzzese
- Department of Public Health, "Federico II" University of Naples, Naples, Italy
| | - Daniela Terracciano
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy.,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Francesco Beguinot
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy.,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy
| | - Pietro Formisano
- URT "Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy. .,Department of Translational Medicine, "Federico II" University of Naples, Naples, Italy.
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13
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Jung BC, Kang S. Epigenetic regulation of inflammatory factors in adipose tissue. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:159019. [PMID: 34332076 DOI: 10.1016/j.bbalip.2021.159019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/10/2021] [Accepted: 07/25/2021] [Indexed: 12/13/2022]
Abstract
Obesity is a strong risk factor for insulin resistance. Chronic low-grade tissue inflammation and systemic inflammation have been proposed as major mechanisms that promote insulin resistance in obesity. Adipose tissue has been recognized as a nexus between inflammation and metabolism, but how exactly inflammatory gene expression is orchestrated during the development of obesity is not well understood. Epigenetic modifications are defined as heritable changes in gene expression and cellular function without changes to the original DNA sequence. The major epigenetic mechanisms include DNA methylation, histone modification, noncoding RNAs, nucleopositioning/remodeling and chromatin reorganization. Epigenetic mechanisms provide a critical layer of gene regulation in response to environmental changes. Accumulating evidence supports that epigenetics plays a large role in the regulation of inflammatory genes in adipocytes and adipose-resident immune cell types. This review focuses on the association between adipose tissue inflammation in obesity and major epigenetic modifications.
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Affiliation(s)
- Byung Chul Jung
- Nutritional Sciences and Toxicology Department, University of California Berkeley, Berkeley, CA 94720, United States of America
| | - Sona Kang
- Nutritional Sciences and Toxicology Department, University of California Berkeley, Berkeley, CA 94720, United States of America.
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14
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A next-generation sequencing study on mechanisms by which restraint and social instability stresses of male mice alter offspring anxiety-like behavior. Sci Rep 2021; 11:7952. [PMID: 33846458 PMCID: PMC8042048 DOI: 10.1038/s41598-021-87060-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/23/2021] [Indexed: 11/08/2022] Open
Abstract
Pathophysiological mechanisms for depression/anxiety are largely unknown. Evidence for transgenerational transmission of acquired epigenetic marks remains limited. We bred unstressed (US) female mice with adolescently restraint-stressed (RS), social instability-stressed (SI) or US males to produce RS, SI and control F1 offspring, respectively. Compared to controls, while paternal RS decreased anxiety-like behavior (ALB) in both female and male offspring, paternal SI increased ALB only in female offspring. Next-generation sequencing and bioinformatics using RS and SI female offspring identified 5 candidate anxiety-transmitting (CAT) genes; each showed a consistent pattern of DNA methylation from F0 spermatozoa through F1 blastocysts to fetal and adult hippocampi. Further analyses validated 4 CAT genes, demonstrated that paternal SI caused ALB differences between male and female offspring through modifying the CAT genes, and indicated a strong correlation between inflammation and ALB pathogenesis and an important function for intronic DNA methylation in regulating ALB-related genes. In conclusion, this study identified important CAT genes and suggested the possibility that stresses on males might alter offspring's ALB by modifying sperm DNA methylation.
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15
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Mirra P, Desiderio A, Spinelli R, Nigro C, Longo M, Parrillo L, D'Esposito V, Carissimo A, Hedjazifar S, Smith U, Formisano P, Miele C, Raciti GA, Beguinot F. Adipocyte precursor cells from first degree relatives of type 2 diabetic patients feature changes in hsa-mir-23a-5p, -193a-5p, and -193b-5p and insulin-like growth factor 2 expression. FASEB J 2021; 35:e21357. [PMID: 33710685 DOI: 10.1096/fj.202002156rrr] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 12/13/2022]
Abstract
First-degree relatives (FDRs) of type 2 diabetics (T2D) feature dysfunction of subcutaneous adipose tissue (SAT) long before T2D onset. miRNAs have a role in adipocyte precursor cells (APC) differentiation and in adipocyte identity. Thus, impaired miRNA expression may contribute to SAT dysfunction in FDRs. In the present work, we have explored changes in miRNA expression associated with T2D family history which may affect gene expression in SAT APCs from FDRs. Small RNA-seq was performed in APCs from healthy FDRs and matched controls and omics data were validated by qPCR. Integrative analyses of APC miRNome and transcriptome from FDRs revealed down-regulated hsa-miR-23a-5p, -193a-5p and -193b-5p accompanied by up-regulated Insulin-like Growth Factor 2 (IGF2) gene which proved to be their direct target. The expression changes in these marks were associated with SAT adipocyte hypertrophy in FDRs. APCs from FDRs further demonstrated reduced capability to differentiate into adipocytes. Treatment with IGF2 protein decreased APC adipogenesis, while over-expression of hsa-miR-23a-5p, -193a-5p and -193b-5p enhanced adipogenesis by IGF2 targeting. Indeed, IGF2 increased the Wnt Family Member 10B gene expression in APCs. Down-regulation of the three miRNAs and IGF2 up-regulation was also observed in Peripheral Blood Leukocytes (PBLs) from FDRs. In conclusion, APCs from FDRs feature a specific miRNA/gene profile, which associates with SAT adipocyte hypertrophy and appears to contribute to impaired adipogenesis. PBL detection of this profile may help in identifying adipocyte hypertrophy in individuals at high risk of T2D.
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Affiliation(s)
- Paola Mirra
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Antonella Desiderio
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Rosa Spinelli
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Cecilia Nigro
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Michele Longo
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Luca Parrillo
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Vittoria D'Esposito
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | | | - Shahram Hedjazifar
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ulf Smith
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Pietro Formisano
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Claudia Miele
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Gregory A Raciti
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
| | - Francesco Beguinot
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Naples, Italy
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16
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Ramos-Lopez O, Milagro FI, Riezu-Boj JI, Martinez JA. Epigenetic signatures underlying inflammation: an interplay of nutrition, physical activity, metabolic diseases, and environmental factors for personalized nutrition. Inflamm Res 2020; 70:29-49. [PMID: 33231704 PMCID: PMC7684853 DOI: 10.1007/s00011-020-01425-y] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/26/2020] [Accepted: 11/12/2020] [Indexed: 12/12/2022] Open
Abstract
Aim and objective Emerging translational evidence suggests that epigenetic alterations (DNA methylation, miRNA expression, and histone modifications) occur after external stimuli and may contribute to exacerbated inflammation and the risk of suffering several diseases including diabetes, cardiovascular diseases, cancer, and neurological disorders. This review summarizes the current knowledge about the harmful effects of high-fat/high-sugar diets, micronutrient deficiencies (folate, manganese, and carotenoids), obesity and associated complications, bacterial/viral infections, smoking, excessive alcohol consumption, sleep deprivation, chronic stress, air pollution, and chemical exposure on inflammation through epigenetic mechanisms. Additionally, the epigenetic phenomena underlying the anti-inflammatory potential of caloric restriction, n-3 PUFA, Mediterranean diet, vitamin D, zinc, polyphenols (i.e., resveratrol, gallic acid, epicatechin, luteolin, curcumin), and the role of systematic exercise are discussed. Methods Original and review articles encompassing epigenetics and inflammation were screened from major databases (including PubMed, Medline, Science Direct, Scopus, etc.) and analyzed for the writing of the review paper. Conclusion Although caution should be exercised, research on epigenetic mechanisms is contributing to understand pathological processes involving inflammatory responses, the prediction of disease risk based on the epigenotype, as well as the putative design of therapeutic interventions targeting the epigenome.
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Affiliation(s)
- Omar Ramos-Lopez
- Medicine and Psychology School, Autonomous University of Baja California, Tijuana, Baja California, Mexico
| | - Fermin I Milagro
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, 1 Irunlarrea Street, 31008, Pamplona, Spain.
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.
- CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Health Institute, Madrid, Spain.
| | - Jose I Riezu-Boj
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, 1 Irunlarrea Street, 31008, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - J Alfredo Martinez
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, 1 Irunlarrea Street, 31008, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
- CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Health Institute, Madrid, Spain
- Precision Nutrition and Cardiometabolic Health, IMDEA-Food Institute (Madrid Institute for Advanced Studies), Madrid, Spain
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17
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Low-dose Bisphenol-A Promotes Epigenetic Changes at Pparγ Promoter in Adipose Precursor Cells. Nutrients 2020; 12:nu12113498. [PMID: 33203037 PMCID: PMC7696502 DOI: 10.3390/nu12113498] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/02/2020] [Accepted: 11/11/2020] [Indexed: 12/14/2022] Open
Abstract
Exposure to endocrine-disrupting chemicals such as Bisphenol-A (BPA) is associated with an increase in obesity prevalence. Diet is the primary cause of human exposure to this contaminant. BPA promotes obesity by inducing adipocyte dysfunction and altering adipogenesis. Contradictory evidence and unanswered questions are reported in the literature concerning the BPA effects on adipogenesis. To clarify this issue, we tested the effects of prolonged low-dose BPA exposure on different phases of adipogenesis in committed 3T3L1 and uncommitted NIH3T3 preadipocytes. Our findings show that BPA effects on the adipogenesis are mediated by epigenetic mechanisms by reducing peroxisome proliferator-activated receptor gamma (Pparγ) promoter methylation in preadipocytes. Nevertheless, in BPA-exposed 3T3L1, Pparγ expression only transiently increases as lipid accumulation at day 4 of differentiation, without altering the adipogenic potential of the precursor cells. In the absence of differentiation mix, BPA does not make the 3T3L1 an in vitro model of spontaneous adipogenesis and the effects on the Pparγ expression are still limited at day 4 of differentiation. Furthermore, BPA exposure does not commit the NIH3T3 to the adipocyte lineage, although Pparγ overexpression is more evident both in preadipocytes and during the adipocyte differentiation. Interestingly, termination of the BPA exposure restores the Pparγ promoter methylation and inflammatory profile of the 3T3L1 cells. This study shows that BPA induces epigenetic changes in a key adipogenic gene. These modifications are reversible and do not affect preadipocyte commitment and/or differentiation. We identify an alternative transcriptional mechanism by which BPA affects gene expression and demonstrate how the challenge of preventing exposure is fundamental for human health.
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18
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Pastor RF, Repetto MG, Lairion F, Lazarowski A, Merelli A, Manfredi Carabetti Z, Pastor I, Pastor E, Iermoli LV, Bavasso CA, Iermoli RH. Supplementation with Resveratrol, Piperine and Alpha-Tocopherol Decreases Chronic Inflammation in a Cluster of Older Adults with Metabolic Syndrome. Nutrients 2020; 12:nu12103149. [PMID: 33076345 PMCID: PMC7602615 DOI: 10.3390/nu12103149] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 12/31/2022] Open
Abstract
Metabolic Syndrome (MetS) is increasing worldwide regardless of culture, genetic, gender, and geographic differences. While multiple individual risk factors, such as obesity, hypertension, diabetes, and hyperlipidemia, can cause cardiovascular disease (CVD), it is the intercurrence of these risk factors that defines MetS as a cluster that creates an environment for atherosclerosis and other manifestations of CVD. Despite the advances in the knowledge and management of each of the components of MetS, there are two molecular biology processes, chronic inflammation and oxidative stress, which are still underdiagnosed and undertreated. In order to assess the effect of a dietary supplement on chronic inflammation in MetS, we conducted a clinical trial with volunteers receiving a formula composed of resveratrol, piperine and alpha tocopherol (FRAMINTROL®), together with their habitual treatment, for three months. The inflammatory state was evaluated by ultrasensitive C reactive protein (US CRP) and ferritin in plasma, and oxygen consumption and chemiluminescence in neutrophils. The results showed that ferritin decreased by 10% (p < 0.05), US-CRP by 33% (p < 0.0001), oxygen consumption by 55% (p < 0.0001), and spontaneous chemiluminiscence was by 25% (p < 0.005) after treatment. As far as we know, this is the first study showing a chronic inflammation decrease in MetS patients due to the administration of a biopower Resveratrol-piperine and alpha tocopherol dietary supplement together with conventional therapy.
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Affiliation(s)
- Raúl Francisco Pastor
- Unidad Polifenoles, Vino y Salud, Cuarta Cátedra de Medicina, Hospital de Clínicas “José de San Martín” Facultad de Medicina, Universidad de Buenos Aires, City of Buenos Aires C1120AAF, Argentina; (Z.M.C.); (I.P.); (E.P.); (L.V.I.); (C.A.B.); (R.H.I.)
- Correspondence: ; Tel.: +54-9-11-4411-4806
| | - Marisa Gabriela Repetto
- Departamento de Físicoquímica y Química Analítica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires; Instituto de Bioquímica y Medicina Molecular (IBIMOL) Consejo Nacional de Ciencia y Tecnología (UBA-CONICET), City of Buenos Aires C1113AAD, Argentina; (M.G.R.); (F.L.)
| | - Fabiana Lairion
- Departamento de Físicoquímica y Química Analítica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires; Instituto de Bioquímica y Medicina Molecular (IBIMOL) Consejo Nacional de Ciencia y Tecnología (UBA-CONICET), City of Buenos Aires C1113AAD, Argentina; (M.G.R.); (F.L.)
| | - Alberto Lazarowski
- Departamento de Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Instituto de Fisiopatología y Bioquímica Clínica (INFIBIOC), Buenos Aires C1113AAD, Argentina; (A.L.); (A.M.)
| | - Amalia Merelli
- Departamento de Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Instituto de Fisiopatología y Bioquímica Clínica (INFIBIOC), Buenos Aires C1113AAD, Argentina; (A.L.); (A.M.)
| | - Zulma Manfredi Carabetti
- Unidad Polifenoles, Vino y Salud, Cuarta Cátedra de Medicina, Hospital de Clínicas “José de San Martín” Facultad de Medicina, Universidad de Buenos Aires, City of Buenos Aires C1120AAF, Argentina; (Z.M.C.); (I.P.); (E.P.); (L.V.I.); (C.A.B.); (R.H.I.)
| | - Isabel Pastor
- Unidad Polifenoles, Vino y Salud, Cuarta Cátedra de Medicina, Hospital de Clínicas “José de San Martín” Facultad de Medicina, Universidad de Buenos Aires, City of Buenos Aires C1120AAF, Argentina; (Z.M.C.); (I.P.); (E.P.); (L.V.I.); (C.A.B.); (R.H.I.)
| | - Elena Pastor
- Unidad Polifenoles, Vino y Salud, Cuarta Cátedra de Medicina, Hospital de Clínicas “José de San Martín” Facultad de Medicina, Universidad de Buenos Aires, City of Buenos Aires C1120AAF, Argentina; (Z.M.C.); (I.P.); (E.P.); (L.V.I.); (C.A.B.); (R.H.I.)
| | - Laura Valeria Iermoli
- Unidad Polifenoles, Vino y Salud, Cuarta Cátedra de Medicina, Hospital de Clínicas “José de San Martín” Facultad de Medicina, Universidad de Buenos Aires, City of Buenos Aires C1120AAF, Argentina; (Z.M.C.); (I.P.); (E.P.); (L.V.I.); (C.A.B.); (R.H.I.)
| | - Carlos Amadeo Bavasso
- Unidad Polifenoles, Vino y Salud, Cuarta Cátedra de Medicina, Hospital de Clínicas “José de San Martín” Facultad de Medicina, Universidad de Buenos Aires, City of Buenos Aires C1120AAF, Argentina; (Z.M.C.); (I.P.); (E.P.); (L.V.I.); (C.A.B.); (R.H.I.)
| | - Roberto Héctor Iermoli
- Unidad Polifenoles, Vino y Salud, Cuarta Cátedra de Medicina, Hospital de Clínicas “José de San Martín” Facultad de Medicina, Universidad de Buenos Aires, City of Buenos Aires C1120AAF, Argentina; (Z.M.C.); (I.P.); (E.P.); (L.V.I.); (C.A.B.); (R.H.I.)
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Asif S, Morrow NM, Mulvihill EE, Kim KH. Understanding Dietary Intervention-Mediated Epigenetic Modifications in Metabolic Diseases. Front Genet 2020; 11:590369. [PMID: 33193730 PMCID: PMC7593700 DOI: 10.3389/fgene.2020.590369] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022] Open
Abstract
The global prevalence of metabolic disorders, such as obesity, diabetes and fatty liver disease, is dramatically increasing. Both genetic and environmental factors are well-known contributors to the development of these diseases and therefore, the study of epigenetics can provide additional mechanistic insight. Dietary interventions, including caloric restriction, intermittent fasting or time-restricted feeding, have shown promising improvements in patients' overall metabolic profiles (i.e., reduced body weight, improved glucose homeostasis), and an increasing number of studies have associated these beneficial effects with epigenetic alterations. In this article, we review epigenetic changes involved in both metabolic diseases and dietary interventions in primary metabolic tissues (i.e., adipose, liver, and pancreas) in hopes of elucidating potential biomarkers and therapeutic targets for disease prevention and treatment.
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Affiliation(s)
- Shaza Asif
- University of Ottawa Heart Institute, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Nadya M. Morrow
- University of Ottawa Heart Institute, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Erin E. Mulvihill
- University of Ottawa Heart Institute, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Kyoung-Han Kim
- University of Ottawa Heart Institute, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
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20
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Spinelli R, Parrillo L, Longo M, Florese P, Desiderio A, Zatterale F, Miele C, Raciti GA, Beguinot F. Molecular basis of ageing in chronic metabolic diseases. J Endocrinol Invest 2020; 43:1373-1389. [PMID: 32358737 PMCID: PMC7481162 DOI: 10.1007/s40618-020-01255-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 04/10/2020] [Indexed: 02/06/2023]
Abstract
AIM Over the last decades, the shift in age distribution towards older ages and the progressive ageing which has occurred in most populations have been paralleled by a global epidemic of obesity and its related metabolic disorders, primarily, type 2 diabetes (T2D). Dysfunction of the adipose tissue (AT) is widely recognized as a significant hallmark of the ageing process that, in turn, results in systemic metabolic alterations. These include insulin resistance, accumulation of ectopic lipids and chronic inflammation, which are responsible for an elevated risk of obesity and T2D onset associated to ageing. On the other hand, obesity and T2D, the paradigms of AT dysfunction, share many physiological characteristics with the ageing process, such as an increased burden of senescent cells and epigenetic alterations. Thus, these chronic metabolic disorders may represent a state of accelerated ageing. MATERIALS AND METHODS A more precise explanation of the fundamental ageing mechanisms that occur in AT and a deeper understanding of their role in the interplay between accelerated ageing and AT dysfunction can be a fundamental leap towards novel therapies that address the causes, not just the symptoms, of obesity and T2D, utilizing strategies that target either senescent cells or DNA methylation. RESULTS In this review, we summarize the current knowledge of the pathways that lead to AT dysfunction in the chronological ageing process as well as the pathophysiology of obesity and T2D, emphasizing the critical role of cellular senescence and DNA methylation. CONCLUSION Finally, we highlight the need for further research focused on targeting these mechanisms.
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Affiliation(s)
- R Spinelli
- Department of Translation Medicine, Federico II University of Naples, 80131, Naples, Italy
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - L Parrillo
- Department of Translation Medicine, Federico II University of Naples, 80131, Naples, Italy
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - M Longo
- Department of Translation Medicine, Federico II University of Naples, 80131, Naples, Italy
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - P Florese
- Department of Translation Medicine, Federico II University of Naples, 80131, Naples, Italy
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - A Desiderio
- Department of Translation Medicine, Federico II University of Naples, 80131, Naples, Italy
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - F Zatterale
- Department of Translation Medicine, Federico II University of Naples, 80131, Naples, Italy
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - C Miele
- Department of Translation Medicine, Federico II University of Naples, 80131, Naples, Italy
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - G Alexander Raciti
- Department of Translation Medicine, Federico II University of Naples, 80131, Naples, Italy
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy
| | - F Beguinot
- Department of Translation Medicine, Federico II University of Naples, 80131, Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131, Naples, Italy.
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21
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Parrillo L, Spinelli R, Longo M, Desiderio A, Mirra P, Nigro C, Fiory F, Hedjazifar S, Mutarelli M, Carissimo A, Formisano P, Miele C, Smith U, Raciti GA, Beguinot F. Altered PTPRD DNA methylation associates with restricted adipogenesis in healthy first-degree relatives of Type 2 diabetes subjects. Epigenomics 2020; 12:873-888. [PMID: 32483983 DOI: 10.2217/epi-2019-0267] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: First-degree relatives (FDR) of individuals with Type 2 diabetes (T2D) feature restricted adipogenesis, which render them more vulnerable to T2D. Epigenetics may contribute to these abnormalities. Methods: FDR pre-adipocyte Methylome and Transcriptome were investigated by MeDIP- and RNA-Seq, respectively. Results: Methylome analysis revealed 2841 differentially methylated regions (DMR) in FDR. Most DMR localized into gene-body and were hypomethylated. The strongest hypomethylation signal was identified in an intronic-DMR at the PTPRD gene. PTPRD hypomethylation in FDR was confirmed by bisulphite sequencing and was responsible for its upregulation. Interestingly, Ptprd-overexpression in 3T3-L1 pre-adipocytes inhibited adipogenesis. Notably, the validated PTPRD-associated DMR was significantly hypomethylated in peripheral blood leukocytes from the same FDR individuals. Finally, PTPRD methylation pattern was also replicated in obese individuals. Conclusion: Our findings indicated a previously unrecognized role of PTPRD in restraining adipogenesis. This abnormality may contribute to increase FDR proclivity toward T2D.
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Affiliation(s)
- Luca Parrillo
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Rosa Spinelli
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Michele Longo
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Antonella Desiderio
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Paola Mirra
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Cecilia Nigro
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Francesca Fiory
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Shahram Hedjazifar
- Lundberg Laboratory for Diabetes Research, Department of Molecular & Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, 41345, Sweden
| | | | | | - Pietro Formisano
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Claudia Miele
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Ulf Smith
- Lundberg Laboratory for Diabetes Research, Department of Molecular & Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, 41345, Sweden
| | - Gregory Alexander Raciti
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
| | - Francesco Beguinot
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine - Federico II University of Naples, 80131, Italy
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22
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Campitelli M, Desiderio A, Cacace G, Nigro C, Prevenzano I, Leone A, de Simone S, Campiglia P, Formisano P, Raciti GA, Beguinot F, Miele C. Citrus aurantium L. Dry Extracts Ameliorate Adipocyte Differentiation of 3T3-L1 Cells Exposed to TNFα by Down-Regulating miR-155 Expression. Nutrients 2020; 12:nu12061587. [PMID: 32481686 PMCID: PMC7352926 DOI: 10.3390/nu12061587] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 01/14/2023] Open
Abstract
Citrus aurantium L. dry extracts (CAde) improve adipogenesis in vitro. These effects are dependent from an early modulation of CCAAT/enhancer-binding protein beta (C/Ebpβ) expression and cyclic Adenosine Monophosphate (cAMP) response element-binding protein (CREB) activation. C/Ebpβ and Creb are also targets of miR-155. This study investigated whether CAde regulates miR-155 expression in the early stages of adipogenesis and whether it ameliorates adipocyte differentiation of cells exposed to tumor necrosis factor-alpha (TNFα). Adipogenic stimuli (AS) were performed in 3T3-L1 pre-adipocytes treated with CAde, TNFα, or both. Gene and miRNA expression were determined by quantitative real-time PCR. Adipogenesis was evaluated by Oil-Red O staining. CAde treatment enhanced AS effects during the early adipogenesis phases by further down-regulating miR-155 expression and increasing both C/Ebpβ and Creb mRNA and protein levels. At variance, TNFα inhibited 3T3-L1 adipogenesis and abolished AS effects on miR-155, C/Ebpβ, and Creb expression. However, in cells exposed to TNFα, CAde improved adipocyte differentiation and restored the AS effects on miRNA and gene expression at early time points. In conclusion, this study identified miR-155 down-regulation as part of the mechanism through which CAde enhances adipogenesis of pre-adipocytes in vitro. Furthermore, it provides evidence of CAde efficacy against TNFα negative effects on adipogenesis.
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Affiliation(s)
- Michele Campitelli
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Antonella Desiderio
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Giuseppe Cacace
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Cecilia Nigro
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Immacolata Prevenzano
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Alessia Leone
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Sonia de Simone
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy;
- European Biomedical Research Institute of Salerno, 84125 Salerno, Italy
| | - Pietro Formisano
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Gregory A. Raciti
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
- Correspondence: (G.A.R.); (C.M.); Tel.: +39-081-746-3045 (G.A.R.); +39-081-746-3248 (C.M.)
| | - Francesco Beguinot
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
| | - Claudia Miele
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy; (M.C.); (A.D.); (G.C.); (C.N.); (I.P.); (A.L.); (S.d.S.); (P.F.); (F.B.)
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy
- Correspondence: (G.A.R.); (C.M.); Tel.: +39-081-746-3045 (G.A.R.); +39-081-746-3248 (C.M.)
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Zatterale F, Longo M, Naderi J, Raciti GA, Desiderio A, Miele C, Beguinot F. Chronic Adipose Tissue Inflammation Linking Obesity to Insulin Resistance and Type 2 Diabetes. Front Physiol 2020; 10:1607. [PMID: 32063863 PMCID: PMC7000657 DOI: 10.3389/fphys.2019.01607] [Citation(s) in RCA: 480] [Impact Index Per Article: 120.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/23/2019] [Indexed: 12/13/2022] Open
Abstract
Obesity is one of the major health burdens of the 21st century as it contributes to the growing prevalence of its related comorbidities, including insulin resistance and type 2 diabetes. Growing evidence suggests a critical role for overnutrition in the development of low-grade inflammation. Specifically, chronic inflammation in adipose tissue is considered a crucial risk factor for the development of insulin resistance and type 2 diabetes in obese individuals. The triggers for adipose tissue inflammation are still poorly defined. However, obesity-induced adipose tissue expansion provides a plethora of intrinsic signals (e.g., adipocyte death, hypoxia, and mechanical stress) capable of initiating the inflammatory response. Immune dysregulation in adipose tissue of obese subjects results in a chronic low-grade inflammation characterized by increased infiltration and activation of innate and adaptive immune cells. Macrophages are the most abundant innate immune cells infiltrating and accumulating into adipose tissue of obese individuals; they constitute up to 40% of all adipose tissue cells in obesity. In obesity, adipose tissue macrophages are polarized into pro-inflammatory M1 macrophages and secrete many pro-inflammatory cytokines capable of impairing insulin signaling, therefore promoting the progression of insulin resistance. Besides macrophages, many other immune cells (e.g., dendritic cells, mast cells, neutrophils, B cells, and T cells) reside in adipose tissue during obesity, playing a key role in the development of adipose tissue inflammation and insulin resistance. The association of obesity, adipose tissue inflammation, and metabolic diseases makes inflammatory pathways an appealing target for the treatment of obesity-related metabolic complications. In this review, we summarize the molecular mechanisms responsible for the obesity-induced adipose tissue inflammation and progression toward obesity-associated comorbidities and highlight the current therapeutic strategies.
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Affiliation(s)
- Federica Zatterale
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Michele Longo
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Jamal Naderi
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy.,Department of Environmental, Biological, and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, Caserta, Italy
| | - Gregory Alexander Raciti
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Antonella Desiderio
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Claudia Miele
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
| | - Francesco Beguinot
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy.,URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Naples, Italy
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24
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Desiderio A, Longo M, Parrillo L, Campitelli M, Cacace G, de Simone S, Spinelli R, Zatterale F, Cabaro S, Dolce P, Formisano P, Milone M, Miele C, Beguinot F, Raciti GA. Epigenetic silencing of the ANKRD26 gene correlates to the pro-inflammatory profile and increased cardio-metabolic risk factors in human obesity. Clin Epigenetics 2019; 11:181. [PMID: 31801613 PMCID: PMC6894277 DOI: 10.1186/s13148-019-0768-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 10/21/2019] [Indexed: 01/04/2023] Open
Abstract
Background Obesity is a major worldwide threat to human health. Increasing evidence indicates that epigenetic modifications have a major impact on the natural history of this disorder. Ankyrin Repeat Domain 26 (Ankrd26) is involved in the development of both obesity and diabetes in mice and is modulated by environmentally induced epigenetic modifications. This study aims at investigating whether impaired ANKRD26 gene expression and methylation occur in human obesity and whether they correlate to the phenotype of these subjects. Results We found that downregulation of ANKRD26 mRNA and hyper-methylation of a specific region of the ANKRD26 promoter, embedding the CpG dinucleotides − 689, − 659, and − 651 bp, occur in peripheral blood leukocytes from obese compared with the lean subjects. ANKRD26 gene expression correlates inversely to the percentage of DNA methylation at these 3 CpG sites. Luciferase assays reveal a cause-effect relationship between DNA methylation at the 3 CpG sites and ANKRD26 gene expression. Finally, both ANKRD26 mRNA levels and CpG methylation correlate to body mass index and to the pro-inflammatory status and the increased cardio-metabolic risk factors of these same subjects. Conclusion Downregulation of the ANKRD26 gene and hyper-methylation at specific CpGs of its promoter are common abnormalities in obese patients. These changes correlate to the pro-inflammatory profile and the cardio-metabolic risk factors of the obese individuals, indicating that, in humans, they mark adverse health outcomes.
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Affiliation(s)
- Antonella Desiderio
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Michele Longo
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Luca Parrillo
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Michele Campitelli
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Giuseppe Cacace
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Sonia de Simone
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Rosa Spinelli
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Federica Zatterale
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Serena Cabaro
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Pasquale Dolce
- Department of Public Health, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Pietro Formisano
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Marco Milone
- Department of Clinical Medicine and Surgery, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Claudia Miele
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy. .,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy.
| | - Francesco Beguinot
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy. .,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy.
| | - Gregory A Raciti
- URT Genomics of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, Via Pansini 5, 80131, Naples, Italy.,Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
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Pirone L, Smaldone G, Spinelli R, Barberisi M, Beguinot F, Vitagliano L, Miele C, Di Gaetano S, Raciti GA, Pedone E. KCTD1: A novel modulator of adipogenesis through the interaction with the transcription factor AP2α. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:158514. [PMID: 31465887 DOI: 10.1016/j.bbalip.2019.08.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 07/09/2019] [Accepted: 08/22/2019] [Indexed: 01/23/2023]
Abstract
Adipogenesis has an important role in regulating energy balance, tissue homeostasis and disease pathogenesis. 3T3-L1 preadipocytes have been widely used as an in vitro model for studying adipocyte differentiation. We here show that KCTD1, a member of the potassium channel containing tetramerization domain proteins, plays an active role in adipogenesis. In particular, we show KCTD1 expression 3T3-L1 cells increases upon adipogenesis induction. Treatment of 3T3-L1 preadipocytes with Kctd1-specific siRNA inhibited the differentiation, as indicated by reduction of expression of the specific adipogenic markers C/ebpα, Pparγ2, Glut4, and Adiponectin. Moreover, we also show that the protein physically interacts with the transcription factor AP2α, a known inhibitor of adipogenesis, both in vitro and in cells. Interestingly, our data indicate that KCTD1 promotes adipogenesis through the interaction with AP2α and by removing it from the nucleus. Collectively, these findings disclose a novel role for KCTD1 and pave the way for novel strategies aimed at modulating adipogenesis.
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Affiliation(s)
- Luciano Pirone
- Istituto di Biostrutture e Bioimmagini, CNR, Napoli, Italy
| | | | - Rosa Spinelli
- URT "Genomica del Diabete", Istituto per l'Endocrinologia e l'Oncologia Sperimentale "Gaetano Salvatore", CNR, Napoli, Italy; Dipartimento di Scienze Mediche Traslazionali, Università degli Studi di Napoli Federico II, Italy
| | - Manlio Barberisi
- Dipartimento Scienze Anastesiologiche, Chirurgiche E Dell'emergenza, Università Della Campania-Luigi Vanvitelli, Caserta, Italy
| | - Francesco Beguinot
- URT "Genomica del Diabete", Istituto per l'Endocrinologia e l'Oncologia Sperimentale "Gaetano Salvatore", CNR, Napoli, Italy; Dipartimento di Scienze Mediche Traslazionali, Università degli Studi di Napoli Federico II, Italy
| | | | - Claudia Miele
- URT "Genomica del Diabete", Istituto per l'Endocrinologia e l'Oncologia Sperimentale "Gaetano Salvatore", CNR, Napoli, Italy; Dipartimento di Scienze Mediche Traslazionali, Università degli Studi di Napoli Federico II, Italy
| | | | - Gregory Alexander Raciti
- URT "Genomica del Diabete", Istituto per l'Endocrinologia e l'Oncologia Sperimentale "Gaetano Salvatore", CNR, Napoli, Italy; Dipartimento di Scienze Mediche Traslazionali, Università degli Studi di Napoli Federico II, Italy
| | - Emilia Pedone
- Istituto di Biostrutture e Bioimmagini, CNR, Napoli, Italy.
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Parrillo L, Spinelli R, Nicolò A, Longo M, Mirra P, Raciti GA, Miele C, Beguinot F. Nutritional Factors, DNA Methylation, and Risk of Type 2 Diabetes and Obesity: Perspectives and Challenges. Int J Mol Sci 2019; 20:ijms20122983. [PMID: 31248068 PMCID: PMC6627657 DOI: 10.3390/ijms20122983] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/13/2019] [Accepted: 06/17/2019] [Indexed: 12/17/2022] Open
Abstract
A healthy diet improves life expectancy and helps to prevent common chronic diseases such as type 2 diabetes (T2D) and obesity. The mechanisms driving these effects are not fully understood, but are likely to involve epigenetics. Epigenetic mechanisms control gene expression, maintaining the DNA sequence, and therefore the full genomic information inherited from our parents, unchanged. An interesting feature of epigenetic changes lies in their dynamic nature and reversibility. Accordingly, they are susceptible to correction through targeted interventions. Here we will review the evidence supporting a role for nutritional factors in mediating metabolic disease risk through DNA methylation changes. Special emphasis will be placed on the potential of using DNA methylation traits as biomarkers to predict risk of obesity and T2D as well as on their response to dietary and pharmacological (epi-drug) interventions.
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Affiliation(s)
- Luca Parrillo
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Rosa Spinelli
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Antonella Nicolò
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Michele Longo
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Paola Mirra
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Gregory Alexander Raciti
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Claudia Miele
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Francesco Beguinot
- Department of Translation Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
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27
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Motta VF, Bargut TL, Souza-Mello V, Aguila MB, Mandarim-de-Lacerda CA. Browning is activated in the subcutaneous white adipose tissue of mice metabolically challenged with a high-fructose diet submitted to high-intensity interval training. J Nutr Biochem 2019; 70:164-173. [PMID: 31207355 DOI: 10.1016/j.jnutbio.2019.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 11/01/2018] [Accepted: 05/10/2019] [Indexed: 12/17/2022]
Abstract
Fructose may induce an endocrine dysfunction in adipose tissue in rodents. Browning is identified by deposits of beige adipocytes in subcutaneous white adipose tissue (sWAT). We study the effects of the high-intensity interval training (HIIT) on the formation of beige adipocytes in the sWAT of mice fed a high-fructose diet. Sixty male mice (3 months old; C57BL/6) were fed two diets for 18 weeks (n=30 each): control diet (C) or high-fructose diet (F). At the 10th week, for an additional 8-week period, the groups were (n=15 each) nontrained (NT) or trained (HIIT): C-NT, C-HIIT, F-NT and F-HIIT. We evaluated body mass, energy expenditure and molecular analyses for browning and thermogenic markers in sWAT. The HIIT groups showed significantly lower body mass and increased energy expenditure. The consumption of fructose was linked with an increased sWAT mass. However, HIIT caused a reduction of sWAT mass compared to the NT groups. Energy intake was parallel in the groups, regardless of the diet type and HIIT. Fructose was related to higher glucose and insulin levels and hypertrophied sWAT adipocytes, but HIIT decreased both glucose and insulin levels and led to the appearance of brown fat-like adipocytes dispersed in sWAT with higher expression of browning markers. Also, fructose reduced the sWAT markers of mitochondrial biogenesis and beta-oxidation, which were enhanced by HIIT. In conclusion, HIIT might stimulate the sWAT browning in mice fed a high-fructose diet associated with beneficial changes in mitochondrial biogenesis and beta-oxidation markers, contributing to a whole-body metabolic improvement.
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Affiliation(s)
- Victor F Motta
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Brazil.
| | - Thereza L Bargut
- Basic Sciences Department, Nova Friburgo Health Institute, Fluminense Federal University, Nova Friburgo, Brazil.
| | - Vanessa Souza-Mello
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Brazil.
| | - Marcia B Aguila
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Brazil.
| | - Carlos A Mandarim-de-Lacerda
- Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Brazil.
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Longo M, Zatterale F, Naderi J, Parrillo L, Formisano P, Raciti GA, Beguinot F, Miele C. Adipose Tissue Dysfunction as Determinant of Obesity-Associated Metabolic Complications. Int J Mol Sci 2019; 20:ijms20092358. [PMID: 31085992 PMCID: PMC6539070 DOI: 10.3390/ijms20092358] [Citation(s) in RCA: 774] [Impact Index Per Article: 154.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 02/07/2023] Open
Abstract
Obesity is a critical risk factor for the development of type 2 diabetes (T2D), and its prevalence is rising worldwide. White adipose tissue (WAT) has a crucial role in regulating systemic energy homeostasis. Adipose tissue expands by a combination of an increase in adipocyte size (hypertrophy) and number (hyperplasia). The recruitment and differentiation of adipose precursor cells in the subcutaneous adipose tissue (SAT), rather than merely inflating the cells, would be protective from the obesity-associated metabolic complications. In metabolically unhealthy obesity, the storage capacity of SAT, the largest WAT depot, is limited, and further caloric overload leads to the fat accumulation in ectopic tissues (e.g., liver, skeletal muscle, and heart) and in the visceral adipose depots, an event commonly defined as “lipotoxicity.” Excessive ectopic lipid accumulation leads to local inflammation and insulin resistance (IR). Indeed, overnutrition triggers uncontrolled inflammatory responses in WAT, leading to chronic low-grade inflammation, therefore fostering the progression of IR. This review summarizes the current knowledge on WAT dysfunction in obesity and its associated metabolic abnormalities, such as IR. A better understanding of the mechanisms regulating adipose tissue expansion in obesity is required for the development of future therapeutic approaches in obesity-associated metabolic complications.
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Affiliation(s)
- Michele Longo
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Federica Zatterale
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Jamal Naderi
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Luca Parrillo
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Pietro Formisano
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Gregory Alexander Raciti
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Francesco Beguinot
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
| | - Claudia Miele
- Department of Translational Medicine, Federico II University of Naples, 80131 Naples, Italy.
- URT Genomic of Diabetes, Institute of Experimental Endocrinology and Oncology, National Research Council, 80131 Naples, Italy.
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29
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Nigro C, Leone A, Longo M, Prevenzano I, Fleming TH, Nicolò A, Parrillo L, Spinelli R, Formisano P, Nawroth PP, Beguinot F, Miele C. Methylglyoxal accumulation de-regulates HoxA5 expression, thereby impairing angiogenesis in glyoxalase 1 knock-down mouse aortic endothelial cells. Biochim Biophys Acta Mol Basis Dis 2019; 1865:73-85. [DOI: 10.1016/j.bbadis.2018.10.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/11/2018] [Accepted: 10/08/2018] [Indexed: 01/31/2023]
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30
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Aprile M, Cataldi S, Ambrosio MR, D’Esposito V, Lim K, Dietrich A, Blüher M, Savage DB, Formisano P, Ciccodicola A, Costa V. PPARγΔ5, a Naturally Occurring Dominant-Negative Splice Isoform, Impairs PPARγ Function and Adipocyte Differentiation. Cell Rep 2018; 25:1577-1592.e6. [DOI: 10.1016/j.celrep.2018.10.035] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 08/21/2018] [Accepted: 10/08/2018] [Indexed: 12/17/2022] Open
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Vastolo V, Nettore IC, Ciccarelli M, Albano L, Raciti GA, Longo M, Beguinot F, Ungaro P. High-fat diet unveils an enhancer element at the Ped/Pea-15 gene responsible for epigenetic memory in skeletal muscle. Metabolism 2018; 87:70-79. [PMID: 29928894 DOI: 10.1016/j.metabol.2018.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/09/2018] [Accepted: 06/17/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND The impact of nutrition on the evolution towards type 2 diabetes has recently received increasing attention because of the effect on chromatin structure and gene expression. PURPOSE Evaluate the effect of high-fat diet on chromatin remodelling and expression of Ped/Pea-15, a gene commonly overexpressed in individuals at risk of type 2 diabetes. METHODS We used mouse and cell models to investigate Ped/Pea-15 transcriptional regulation by high-fat diet and glucose, respectively. Chromatin structure and histone modification marks were assessed by Micrococcal Nuclease Protection and Chromatin Immunoprecipitation assays. RESULTS Sixteen-week exposure of C57BL/6J mice to a high-fat diet impaired glucose tolerance and enhanced Ped/Pea-15 expression in their skeletal muscle tissue. This effect was associated with increased chromatin accessibility at specific regulatory sites at the Ped/Pea-15 gene. In particular, the region at -1900 to -1300 bp from Ped/Pea-15 transcription start site was revealed to feature enhancer activity as demonstrated by its function in the luciferase assay, increased p300 recruitment and H3K4me1 and H3K27Ac levels, all marks of functionally active enhancers. Returning mice to a standard chow diet was accompanied by rapid loss of acetylation of K27 on histone H3 and p300 recruitment at Ped/Pea-15. In contrast, the increased H3K4me1, which accompanied the high-fat diet exposure, remained stable. Incubation of muscle cells in culture medium supplemented with 25 mM glucose (HG) increased Ped/Pea-15 mRNA expression and H3K4me1 at the enhancer region. These effects became measurable upon 72 h of exposure to the HG medium and were not rescued upon returning the cells to the 5 mM glucose-containing medium. Interestingly, after 25 mM and sequential 5 mM glucose treatments, re-exposure of the same cells to HG medium further enhanced Ped/Pea-15 expression and increased H3K4me1 above the levels induced by the initial HG challenge already upon 24 h. CONCLUSION Transient exposure to HFD or HG unveiled the presence of an enhancer element at the Ped/Pea-15 gene. Epigenetic changes imposed at this region by diets, which impair glucose tolerance generate metabolic memory of the nutritional injury and leave Ped/Pea-15 induction in a poised state.
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Affiliation(s)
- Viviana Vastolo
- URT Genomics of Diabetes-IEOS, CNR/Department of Translational Medicine, "Federico II" University Medical School of Napoli, via Sergio Pansini 5, 80131 Naples, Italy
| | - Immacolata Cristina Nettore
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, "Federico II" University Medical School of Napoli, via Sergio Pansini 5, 80131 Naples, Italy
| | - Marco Ciccarelli
- URT Genomics of Diabetes-IEOS, CNR/Department of Translational Medicine, "Federico II" University Medical School of Napoli, via Sergio Pansini 5, 80131 Naples, Italy
| | - Luigi Albano
- URT Genomics of Diabetes-IEOS, CNR/Department of Translational Medicine, "Federico II" University Medical School of Napoli, via Sergio Pansini 5, 80131 Naples, Italy
| | - Gregory Alexander Raciti
- URT Genomics of Diabetes-IEOS, CNR/Department of Translational Medicine, "Federico II" University Medical School of Napoli, via Sergio Pansini 5, 80131 Naples, Italy
| | - Michele Longo
- URT Genomics of Diabetes-IEOS, CNR/Department of Translational Medicine, "Federico II" University Medical School of Napoli, via Sergio Pansini 5, 80131 Naples, Italy
| | - Francesco Beguinot
- URT Genomics of Diabetes-IEOS, CNR/Department of Translational Medicine, "Federico II" University Medical School of Napoli, via Sergio Pansini 5, 80131 Naples, Italy.
| | - Paola Ungaro
- URT Genomics of Diabetes-IEOS, CNR/Department of Translational Medicine, "Federico II" University Medical School of Napoli, via Sergio Pansini 5, 80131 Naples, Italy.
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Raciti GA, Fiory F, Campitelli M, Desiderio A, Spinelli R, Longo M, Nigro C, Pepe G, Sommella E, Campiglia P, Formisano P, Beguinot F, Miele C. Citrus aurantium L. dry extracts promote C/ebpβ expression and improve adipocyte differentiation in 3T3-L1 cells. PLoS One 2018; 13:e0193704. [PMID: 29596447 PMCID: PMC5875749 DOI: 10.1371/journal.pone.0193704] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/19/2018] [Indexed: 12/17/2022] Open
Abstract
Metabolic and/or endocrine dysfunction of the white adipose tissue (WAT) contribute to the development of metabolic disorders, such as Type 2 Diabetes (T2D). Therefore, the identification of products able to improve adipose tissue function represents a valuable strategy for the prevention and/or treatment of T2D. In the current study, we investigated the potential effects of dry extracts obtained from Citrus aurantium L. fruit juice (CAde) on the regulation of 3T3-L1 cells adipocyte differentiation and function in vitro. We found that CAde enhances terminal adipocyte differentiation of 3T3-L1 cells raising the expression of CCAAT/enhancer binding protein beta (C/Ebpβ), peroxisome proliferator activated receptor gamma (Pparγ), glucose transporter type 4 (Glut4) and fatty acid binding protein 4 (Fabp4). CAde improves insulin-induced glucose uptake of 3T3-L1 adipocytes, as well. A focused analysis of the phases occurring in the pre-adipocytes differentiation to mature adipocytes furthermore revealed that CAde promotes the early differentiation stage by up-regulating C/ebpβ expression at 2, 4 and 8 h post the adipogenic induction and anticipating the 3T3-L1 cell cycle entry and progression during mitotic clonal expansion (MCE). These findings provide evidence that the exposure to CAde enhances in vitro fat cell differentiation of pre-adipocytes and functional capacity of mature adipocytes, and pave the way to the development of products derived from Citrus aurantium L. fruit juice, which may improve WAT functional capacity and may be effective for the prevention and/or treatment of T2D.
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Affiliation(s)
- Gregory Alexander Raciti
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
- * E-mail: (GAR); (CM)
| | - Francesca Fiory
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
| | - Michele Campitelli
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
| | - Antonella Desiderio
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
| | - Rosa Spinelli
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
| | - Michele Longo
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
| | - Cecilia Nigro
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
| | - Giacomo Pepe
- Department of Pharmacy, School of Pharmacy, University of Salerno University of Salerno, Fisciano, Italy
| | - Eduardo Sommella
- Department of Pharmacy, School of Pharmacy, University of Salerno University of Salerno, Fisciano, Italy
| | - Pietro Campiglia
- Department of Pharmacy, School of Pharmacy, University of Salerno University of Salerno, Fisciano, Italy
- European Biomedical Research Institute of Salerno, Salerno, Italy
| | - Pietro Formisano
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
| | - Francesco Beguinot
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
| | - Claudia Miele
- URT of the Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Council of Research, Naples, Italy
- Department of Translational Medical Sciences, “Federico II” University of Naples, Naples, Italy
- * E-mail: (GAR); (CM)
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33
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Longo M, Raciti GA, Zatterale F, Parrillo L, Desiderio A, Spinelli R, Hammarstedt A, Hedjazifar S, Hoffmann JM, Nigro C, Mirra P, Fiory F, Formisano P, Miele C, Smith U, Beguinot F. Epigenetic modifications of the Zfp/ZNF423 gene control murine adipogenic commitment and are dysregulated in human hypertrophic obesity. Diabetologia 2018; 61:369-380. [PMID: 29067487 PMCID: PMC6448963 DOI: 10.1007/s00125-017-4471-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 09/08/2017] [Indexed: 12/18/2022]
Abstract
AIMS/HYPOTHESIS Subcutaneous adipocyte hypertrophy is associated with insulin resistance and increased risk of type 2 diabetes, and predicts its future development independent of obesity. In humans, subcutaneous adipose tissue hypertrophy is a consequence of impaired adipocyte precursor cell recruitment into the adipogenic pathway rather than a lack of precursor cells. The zinc finger transcription factor known as zinc finger protein (ZFP) 423 has been identified as a major determinant of pre-adipocyte commitment and maintained white adipose cell function. Although its levels do not change during adipogenesis, ectopic expression of Zfp423 in non-adipogenic murine cells is sufficient to activate expression of the gene encoding peroxisome proliferator-activated receptor γ (Pparγ; also known as Pparg) and increase the adipogenic potential of these cells. We investigated whether the Zfp423 gene is under epigenetic regulation and whether this plays a role in the restricted adipogenesis associated with hypertrophic obesity. METHODS Murine 3T3-L1 and NIH-3T3 cells were used as fibroblasts committed and uncommitted to the adipocyte lineage, respectively. Human pre-adipocytes were isolated from the stromal vascular fraction of subcutaneous adipose tissue of 20 lean non-diabetic individuals with a wide adipose cell size range. mRNA levels were measured by quantitative real-time PCR, while methylation levels were analysed by bisulphite sequencing. Chromatin structure was analysed by micrococcal nuclease protection assay, and DNA-methyltransferases were chemically inhibited by 5-azacytidine. Adipocyte differentiation rate was evaluated by Oil Red O staining. RESULTS Comparison of uncommitted (NIH-3T3) and committed (3T3-L1) adipose precursor cells revealed that Zfp423 expression increased (p < 0.01) in parallel with the ability of the cells to differentiate into mature adipocytes owing to both decreased promoter DNA methylation (p < 0.001) and nucleosome occupancy (nucleosome [NUC] 1 p < 0.01; NUC2 p < 0.001) in the 3T3-L1 compared with NIH-3T3 cells. Interestingly, non-adipogenic epigenetic profiles can be reverted in NIH-3T3 cells as 5-azacytidine treatment increased Zfp423 mRNA levels (p < 0.01), reduced DNA methylation at a specific CpG site (p < 0.01), decreased nucleosome occupancy (NUC1, NUC2: p < 0.001) and induced adipocyte differentiation (p < 0.05). These epigenetic modifications can also be initiated in response to changes in the pre-adipose cell microenvironment, in which bone morphogenetic protein 4 (BMP4) plays a key role. We finally showed that, in human adipocyte precursor cells, impaired epigenetic regulation of zinc nuclear factor (ZNF)423 (the human orthologue of murine Zfp423) was associated with inappropriate subcutaneous adipose cell hypertrophy. As in NIH-3T3 cells, the normal ZNF423 epigenetic profile was rescued by 5-azacytidine exposure. CONCLUSIONS/INTERPRETATION Our results show that epigenetic events regulate the ability of precursor cells to commit and differentiate into mature adipocytes by modulating ZNF423, and indicate that dysregulation of these mechanisms accompanies subcutaneous adipose tissue hypertrophy in humans.
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Affiliation(s)
- Michele Longo
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Gregory A Raciti
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Federica Zatterale
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Luca Parrillo
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Antonella Desiderio
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Rosa Spinelli
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Ann Hammarstedt
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Shahram Hedjazifar
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jenny M Hoffmann
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Cecilia Nigro
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Paola Mirra
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Francesca Fiory
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Pietro Formisano
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Claudia Miele
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - Ulf Smith
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Francesco Beguinot
- URT Genomics of Diabetes-IEOS, CNR & Department of Translational Medicine, Federico II University of Naples, Via Pansini 5, 80131, Naples, Italy.
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