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Chacón P, Vega-Rioja A, Doukkali B, Del Valle Rodriguez A, Fernández-Delgado L, Domínguez-Cereijo L, Segura C, Pérez-Machuca BM, Perkins JR, El Bekay R, Cornejo-García JA, Hajji N, Monteseirín J, Rivas-Pérez D. Human Neutrophils Couple Nitric Oxide Production and Extracellular Traps Formation in Allergic Asthma. Am J Respir Crit Care Med 2024. [PMID: 38445953 DOI: 10.1164/rccm.202305-0889oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 03/05/2024] [Indexed: 03/07/2024] Open
Abstract
RATIONALE Nitric oxide (NO) is elevated in the airways and serum of allergic asthmatic patients, suggesting an important role in asthma. NO production has been widely attributed to the canonical inducible nitric oxide synthase (iNOS). Much effort has been made to inhibit this enzyme with two outcomes: no asthma improvement; and partial NO reduction, suggesting the involvement of an iNOS-independent source. OBJECTIVES Neutrophils produce NO under inflammatory conditions and their role in asthma has been overlooked. The present study analyzes their possible role as source of NO. METHODS Our hypothesis was tested in 99 allergic patients with intermittent bronchial asthma and 26 healthy donors. NO production by blood and sputum neutrophils in response to allergens, anti-IgE, and anti-IgE receptors Abs was assessed by Griess, flow cytometry and confocal microscopy. Extracellular traps (ETs) formation, as a possible consequence of NO production, was quantified by western blot and confocal microscopy, and reactive oxygen species by luminol-enhanced chemiluminescence. RESULTS Among blood and sputum granulocytes from allergic asthmatic patients, only neutrophils, produce NO by an IgE-dependent mechanism. This production is independent of NOS, but dependent on a reaction between L-arginine and reactive oxygen species from NOX2. NO and ETosis are induced in parallel, and NO amplifies ETs formation, which is a key mediator in asthma. CONCLUSIONS Our findings reveal a novel role of neutrophils as the unique allergen/IgE-dependent NO source in allergic asthma enhancing ETs formation. These results suggest that NO produced by neutrophils needs further consideration in the treatment of allergic asthma.
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Affiliation(s)
- Pedro Chacón
- Hospital Universitario Virgen Macarena, 16582, UGC de Alergologia, Sevilla, Spain
| | - Antonio Vega-Rioja
- Hospital Universitario Virgen Macarena, 16582, UGC de Alergologia, Sevilla, Spain;
| | - Bouchra Doukkali
- Hospital Universitario Virgen Macarena, 16582, UGC de Alergologia, Sevilla, Spain
| | | | | | | | - Carmen Segura
- Hospital Universitario Virgen Macarena, 16582, UGC de Alergologia, Sevilla, Spain
| | | | - James R Perkins
- 3Department of Molecular Biology and Biochemistry, University of Málaga, Malaga, Spain
| | - Rajaa El Bekay
- Instituto de Investigación Biomédica de Málaga, 582139, Unidad de Gestión Clínica de Endocrinología y Nutrición, Malaga, Andalucía, Spain
| | | | - Nabil Hajji
- Imperial College London Faculty of Medicine, 4957, London, United Kingdom of Great Britain and Northern Ireland
| | - Javier Monteseirín
- 7Hospital Quirón Sagrado Corazón and Hospital Quirón Infanta-Luisa, Seville, Spain
| | - David Rivas-Pérez
- Universidad de Sevilla Facultad de Odontología, 321179, Sevilla, Andalucía, Spain
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Lhamyani S, Gentile AM, Mengual-Mesa M, Grueso E, Giráldez-Pérez RM, Fernandez-Garcia JC, Vega-Rioja A, Clemente-Postigo M, Pearson JR, González-Mariscal I, Olveira G, Bermudez-Silva FJ, El Bekay R. Au@16-pH-16/miR-21 mimic nanosystem: An efficient treatment for obesity through browning and thermogenesis induction. Biomed Pharmacother 2024; 171:116104. [PMID: 38198956 DOI: 10.1016/j.biopha.2023.116104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024] Open
Abstract
Despite the abundance of registered clinical trials worldwide, the availability of effective drugs for obesity treatment is limited due to their associated side effects. Thus, there is growing interest in therapies that stimulate energy expenditure in white adipose tissue. Recently, we demonstrated that the delivery of a miR-21 mimic using JetPEI effectively inhibits weight gain in an obese mouse model by promoting metabolism, browning, and thermogenesis, suggesting the potential of miR-21 mimic as a treatment for obesity. Despite these promising results, the implementation of more advanced delivery system techniques for miR-21 mimic would greatly enhance the advancement of safe and efficient treatment approaches for individuals with obesity in the future. Our objective is to explore whether a new delivery system based on gold nanoparticles and Gemini surfactants (Au@16-ph-16) can replicate the favorable effects of the miR-21 mimic on weight gain, browning, and thermogenesis. We found that dosages as low as 0.2 μg miR-21 mimic /animal significantly inhibited weight gain and induced browning and thermogenic parameters. This was evidenced by the upregulation of specific genes and proteins associated with these processes, as well as the biogenesis of beige adipocytes and mitochondria. Significant increases in miR-21 levels were observed in adipose tissue but not in other tissue types. Our data indicates that Au@16-ph-16 could serve as an effective delivery system for miRNA mimics, suggesting its potential suitability for the development of future clinical treatments against obesity.
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Affiliation(s)
- Said Lhamyani
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Malaga, Spain; Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Malaga, 29009 Malaga, Spain; Obesity and Nutrition CIBER (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Adriana-Mariel Gentile
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Malaga, Spain; Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Malaga, 29009 Malaga, Spain
| | - María Mengual-Mesa
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Malaga, Spain; Universidad de Málaga. Andalucía Tech, Faculty of Health Sciences, Department of Systems and Automation Engineering, Malaga, Spain
| | - Elia Grueso
- Departamento de Física Química, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain
| | - Rosa M Giráldez-Pérez
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
| | - José Carlos Fernandez-Garcia
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Malaga, Spain; Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Malaga, 29009 Malaga, Spain; Obesity and Nutrition CIBER (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio Vega-Rioja
- Laboratorio de Inmunología y Alergia-FISEVI, UGC de Alergología. Hospital Universitario Virgen Macarena, Sevilla, Spain; Departamento de Medicina. Facultad de Medicina. Universidad de Sevilla, Sevilla, Spain
| | - Mercedes Clemente-Postigo
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Malaga, Spain; Obesity and Nutrition CIBER (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain; Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Malaga, Spain; Department of Cell Biology, Genetics, and Physiology, Faculty of Science, University of Malaga, Malaga, Spain
| | - John R Pearson
- Instituto de Biomedicina de Sevilla (IBiS), Seville, Spain
| | - Isabel González-Mariscal
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Malaga, Spain; Inserm UMR1190, CHU de Lille, Universite de Lille, Institute Pasteur de Lille, Lille, France
| | - Gabriel Olveira
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Malaga, Spain; Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Malaga, 29009 Malaga, Spain; The Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Madrid, Spain; Departamento de Medicina y Cirugía, Universidad de Málaga, Málaga, Spain
| | - Francisco-Javier Bermudez-Silva
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Malaga, Spain; Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Malaga, 29009 Malaga, Spain; The Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Madrid, Spain
| | - Rajaa El Bekay
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Malaga, Spain; Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Malaga, 29009 Malaga, Spain; Obesity and Nutrition CIBER (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.
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Gentile AM, Lhamyani S, Mengual-Mesa M, García-Fuentes E, Bermúdez-Silva FJ, Rojo-Martínez G, Clemente-Postigo M, Rodriguez-Cañete A, Olveira G, El Bekay R. MiR-221-3p/222-3p Cluster Expression in Human Adipose Tissue Is Related to Obesity and Type 2 Diabetes. Int J Mol Sci 2023; 24:17449. [PMID: 38139277 PMCID: PMC10744326 DOI: 10.3390/ijms242417449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/05/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
The progression of obesity and type 2 diabetes (T2D) is intricately linked with adipose tissue (AT) angiogenesis. Despite an established network of microRNAs (miRNAs) regulating AT function, the specific role of angiogenic miRNAs remains less understood. The miR-221/222 cluster has recently emerged as being associated with antiangiogenic activity. However, no studies have explored its role in human AT amidst the concurrent development of obesity and T2D. Therefore, this study aims to investigate the association between the miR-221-3p/222-3p cluster in human AT and its regulatory network with obesity and T2D. MiR-221-3p/222-3p and their target gene (TG) expression levels were quantified through qPCR in visceral (VAT) and subcutaneous (SAT) AT from patients (n = 33) categorized based on BMI as normoweight (NW) and obese (OB) and by glycemic status as normoglycemic (NG) and type 2 diabetic (T2D) subjects. In silico analyses of miR-221-3p/222-3p and their TGs were conducted to identify pertinent signaling pathways. The results of a multivariate analysis, considering the simultaneous expression of miR-221-3p and miR-222-3p as dependent variables, revealed statistically significant distinctions when accounting for variables such as tissue depot, obesity, sex, and T2D as independent factors. Furthermore, both miRNAs and their TGs exhibited differential expression patterns based on obesity severity, glycemic status, sex, and type of AT depot. Our in silico analysis indicated that miR-221-3p/222-3p cluster TGs predominantly participate in angiogenesis, WNT signaling, and apoptosis pathways. In conclusion, these findings underscore a promising avenue for future research, emphasizing the miR-221-3p/222-3p cluster and its associated regulatory networks as potential targets for addressing obesity and related metabolic disorders.
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Affiliation(s)
- Adriana-Mariel Gentile
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Málaga, Spain; (A.-M.G.); (S.L.); (E.G.-F.); (F.-J.B.-S.); (G.R.-M.); (G.O.)
- Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Málaga, 29009 Málaga, Spain
| | - Said Lhamyani
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Málaga, Spain; (A.-M.G.); (S.L.); (E.G.-F.); (F.-J.B.-S.); (G.R.-M.); (G.O.)
- Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Málaga, 29009 Málaga, Spain
- Spanish Biomedical Research Center in Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - María Mengual-Mesa
- Andalucía Tech, Faculty of Health Sciences, Department of Systems and Automation Engineering, School of Industrial Engineering, Universidad de Málaga, Teatinos Campus, 29071 Málaga, Spain;
| | - Eduardo García-Fuentes
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Málaga, Spain; (A.-M.G.); (S.L.); (E.G.-F.); (F.-J.B.-S.); (G.R.-M.); (G.O.)
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, 28029 Málaga, Spain
| | - Francisco-Javier Bermúdez-Silva
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Málaga, Spain; (A.-M.G.); (S.L.); (E.G.-F.); (F.-J.B.-S.); (G.R.-M.); (G.O.)
- Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Málaga, 29009 Málaga, Spain
- The Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Gemma Rojo-Martínez
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Málaga, Spain; (A.-M.G.); (S.L.); (E.G.-F.); (F.-J.B.-S.); (G.R.-M.); (G.O.)
- Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Málaga, 29009 Málaga, Spain
- The Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Mercedes Clemente-Postigo
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, 29010 Málaga, Spain
- Institute of Biomedical Research in Málaga (IBIMA)-Bionand Platform, 29590 Málaga, Spain
- Department of Cell Biology, Genetics, and Physiology, Faculty of Science, University of Málaga, 29010 Málaga, Spain
| | - Alberto Rodriguez-Cañete
- Unidad de Gestión Clínica de Cirugía General, Digestiva y Trasplantes, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain;
| | - Gabriel Olveira
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Málaga, Spain; (A.-M.G.); (S.L.); (E.G.-F.); (F.-J.B.-S.); (G.R.-M.); (G.O.)
- Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Málaga, 29009 Málaga, Spain
- The Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Departamento de Medicina y Cirugía, Universidad de Málaga, 29010 Málaga, Spain
| | - Rajaa El Bekay
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, 29580 Málaga, Spain; (A.-M.G.); (S.L.); (E.G.-F.); (F.-J.B.-S.); (G.R.-M.); (G.O.)
- Clinical Unit of Endocrinology and Nutrition, University Regional Hospital of Málaga, 29009 Málaga, Spain
- Spanish Biomedical Research Center in Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, 28029 Madrid, Spain
- IBIMA-Plataforma Bionand, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain
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Carmona-Segovia ADM, Doncel-Abad MV, Becerra-Muñoz VM, Rodríguez-Capitán J, Sabatel-Pérez F, Flores-López M, Sánchez-Quintero MJ, Medina-Vera D, Molina-Ramos AI, El Bekay R, Morales-Asencio JM, Angullo-Gómez M, García-Rodríguez L, Palma-Martí L, Pavón-Morón FJ, Jiménez-Navarro MF. Prognostic stratification of older patients with multivessel coronary artery disease treated with percutaneous transluminal coronary angioplasty based on clinical and biochemical measures: protocol for a prospective cohort study. BMJ Open 2022; 12:e058042. [PMID: 35228293 PMCID: PMC8886411 DOI: 10.1136/bmjopen-2021-058042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION The incidence of acute coronary syndrome is rising in step with the growth of life expectancy. An increase in the age of patients with coronary artery disease has been related to in-hospital mortality, which has seen an upsurge over a short period of time. However, there is no consensus about the percutaneous coronary angioplasty strategy to follow for older patients with multivessel coronary artery disease (MVCAD). Complete revascularisation (CR) or incomplete revascularisation (ICR) strategy depends on prognosis but this has not yet been accurately described because of geriatric conditions and comorbidities. The aim of this study is to evaluate changes of clinical and biochemical parameters in older patients with MVCAD undergoing revascularisation and to establish a prognostic stratification model for CR and ICR. METHODS AND ANALYSIS This observational, longitudinal, prospective study will include 150 patients with MVCAD and subsequent revascularisation who attend the Hospital Universitario Virgen de la Victoria (Málaga, Spain). Because of the dropout rates, 180 patients will be recruited at the beginning. Sociodemographic characteristics, clinical and angiographic parameters, and biochemical variables, such as cardiovascular, metabolic, inflammatory, stress oxidative biomarkers, will be collected in the admission for coronary revascularisation and three follow-ups at 6, 12 and 18 months. Statistical analyses will be conducted with these data using CR and ICR as the primary exposure variable. Relevant explanatory variables will be selected from a predictive model for their inclusion in a prognostic stratification model. The primary outcome measures will be major adverse cardiovascular events. ETHICS AND DISSEMINATION Protocols and patient information have been approved by the regional research ethics committee (CEIm Provincial de Málaga-PEIBA (PI0131/2020). The results will be disseminated in international peer-reviewed journals, presented at conferences in Cardiology and Gerontology, and sent to participants, medical and health service managers, clinicians and other researchers.
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Affiliation(s)
- Ada Del Mar Carmona-Segovia
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - María Victoria Doncel-Abad
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Víctor M Becerra-Muñoz
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Centro de Investigación en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
| | - Jorge Rodríguez-Capitán
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Centro de Investigación en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
| | - Fernando Sabatel-Pérez
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - María Flores-López
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Uiversitario de Málaga, Málaga, Spain
| | - María José Sánchez-Quintero
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Centro de Investigación en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
| | - Dina Medina-Vera
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Uiversitario de Málaga, Málaga, Spain
| | - Ana Isabel Molina-Ramos
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Uiversitario de Málaga, Málaga, Spain
| | - Rajaa El Bekay
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Málaga, Spain
- Centro de Investigación en Red de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - José Miguel Morales-Asencio
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Departamento de Enfermería, Facultad de Ciencias de la Salud, Universidad de Málaga, Málaga, Spain
| | - María Angullo-Gómez
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Luis García-Rodríguez
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Lucía Palma-Martí
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Francisco Javier Pavón-Morón
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Centro de Investigación en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Uiversitario de Málaga, Málaga, Spain
| | - Manuel F Jiménez-Navarro
- Hospitales y Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Centro de Investigación en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
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Giráldez-Pérez RM, Grueso E, Lhamyani S, Perez-Tejeda P, Gentile AM, Kuliszewska E, Roman-Perez J, El Bekay R. miR-21/Gemini surfactant-capped gold nanoparticles as potential therapeutic complexes: Synthesis, characterization and in vivo nanotoxicity probes. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113577] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Clemente-Postigo M, Tinahones A, El Bekay R, Malagón MM, Tinahones FJ. The Role of Autophagy in White Adipose Tissue Function: Implications for Metabolic Health. Metabolites 2020; 10:metabo10050179. [PMID: 32365782 PMCID: PMC7281383 DOI: 10.3390/metabo10050179] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 02/07/2023] Open
Abstract
White adipose tissue (WAT) is a highly adaptive endocrine organ that continuously remodels in response to nutritional cues. WAT expands to store excess energy by increasing adipocyte number and/or size. Failure in WAT expansion has serious consequences on metabolic health resulting in altered lipid, glucose, and inflammatory profiles. Besides an impaired adipogenesis, fibrosis and low-grade inflammation also characterize dysfunctional WAT. Nevertheless, the precise mechanisms leading to impaired WAT expansibility are yet unresolved. Autophagy is a conserved and essential process for cellular homeostasis, which constitutively allows the recycling of damaged or long-lived proteins and organelles, but is also highly induced under stress conditions to provide nutrients and remove pathogens. By modulating protein and organelle content, autophagy is also essential for cell remodeling, maintenance, and survival. In this line, autophagy has been involved in many processes affected during WAT maladaptation, including adipogenesis, adipocyte, and macrophage function, inflammatory response, and fibrosis. WAT autophagy dysregulation is related to obesity and diabetes. However, it remains unclear whether WAT autophagy alteration in obese and diabetic patients are the cause or the consequence of WAT malfunction. In this review, current data regarding these issues are discussed, focusing on evidence from human studies.
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Affiliation(s)
- Mercedes Clemente-Postigo
- Department of Cell Biology, Physiology and Immunology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)-Reina Sofia University Hospital, University of Cordoba, Edificio IMIBIC, Av. Menéndez Pidal s/n, 14004 Córdoba, Spain;
- Correspondence: (M.C.-P.); (F.J.T.); Tel.: +34-957213728 (M.C.-P.); +34-951032648 (F.J.T.)
| | - Alberto Tinahones
- Unidad de Gestión Clínica de Endocrinología y Nutrición (Hospital Universitario Virgen de la Victoria), Instituto de Investigación Biomédica de Málaga (IBIMA), Universidad de Málaga, Campus Teatinos s/n, 29010 Málaga, Spain;
| | - Rajaa El Bekay
- Unidad de Gestión Clínica de Endocrinología y Nutrición (Hospital Universitario Regional de Málaga), Instituto de Investigación Biomédica de Málaga (IBIMA), Universidad de Málaga, Campus Teatinos s/n, 29010 Málaga, Spain;
- Centro de Investigación Biomédica en Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - María M. Malagón
- Department of Cell Biology, Physiology and Immunology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)-Reina Sofia University Hospital, University of Cordoba, Edificio IMIBIC, Av. Menéndez Pidal s/n, 14004 Córdoba, Spain;
- Centro de Investigación Biomédica en Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Francisco J. Tinahones
- Unidad de Gestión Clínica de Endocrinología y Nutrición (Hospital Universitario Virgen de la Victoria), Instituto de Investigación Biomédica de Málaga (IBIMA), Universidad de Málaga, Campus Teatinos s/n, 29010 Málaga, Spain;
- Centro de Investigación Biomédica en Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Correspondence: (M.C.-P.); (F.J.T.); Tel.: +34-957213728 (M.C.-P.); +34-951032648 (F.J.T.)
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7
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Guzmán-Ruiz R, Tercero-Alcázar C, Rabanal-Ruiz Y, Díaz-Ruiz A, El Bekay R, Rangel-Zuñiga OA, Navarro-Ruiz MC, Molero L, Membrives A, Ruiz-Rabelo JF, Pandit A, López-Miranda J, Tinahones FJ, Malagón MM. Adipose tissue depot-specific intracellular and extracellular cues contributing to insulin resistance in obese individuals. FASEB J 2020; 34:7520-7539. [PMID: 32293066 PMCID: PMC7384030 DOI: 10.1096/fj.201902703r] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 03/10/2020] [Accepted: 03/22/2020] [Indexed: 12/12/2022]
Abstract
Adipose tissue dysregulation in obesity strongly influences systemic metabolic homeostasis and is often linked to insulin resistance (IR). However, the molecular mechanisms underlying adipose tissue dysfunction in obesity are not fully understood. Herein, a proteomic analysis of subcutaneous (SC) and omental (OM) fat from lean subjects and obese individuals with different degrees of insulin sensitivity was performed to identify adipose tissue biomarkers related to obesity‐associated metabolic disease. Our results suggest that dysregulation of both adipose tissue extracellular matrix (ECM) organization and intracellular trafficking processes may be associated with IR in obesity. Thus, abnormal accumulation of the small leucine‐rich proteoglycan, lumican, as observed in SC fat of IR obese individuals, modifies collagen I organization, impairs adipogenesis and activates stress processes [endoplasmic reticulum and oxidative stress] in adipocytes. In OM fat, IR is associated with increased levels of the negative regulator of the Rab family of small GTPases, GDI2, which alters lipid storage in adipocytes by inhibiting insulin‐stimulated binding of the Rab protein, Rab18, to lipid droplets. Together, these results indicate that lumican and GDI2 might play depot‐dependent, pathogenic roles in obesity‐associated IR. Our findings provide novel insights into the differential maladaptive responses of SC and OM adipose tissue linking obesity to IR.
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Affiliation(s)
- Rocío Guzmán-Ruiz
- Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Reina Sofia University Hospital, Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Carmen Tercero-Alcázar
- Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Reina Sofia University Hospital, Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Yoana Rabanal-Ruiz
- Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Reina Sofia University Hospital, Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Alberto Díaz-Ruiz
- Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Reina Sofia University Hospital, Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Rajaa El Bekay
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.,Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario, University of Málaga, Málaga, Spain
| | - Oriol A Rangel-Zuñiga
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.,Lipids and Atherosclerosis Unit, IMIBIC, Reina Sofia University Hospital, University of Córdoba, Córdoba, Spain
| | - M Carmen Navarro-Ruiz
- Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Reina Sofia University Hospital, Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Laura Molero
- Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Reina Sofia University Hospital, Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio Membrives
- Unidad de Gestión Clínica de Cirugía General y Digestivo, Sección de Obesidad, IMIBIC, Reina Sofia University Hospital, Córdoba, Spain
| | - Juan F Ruiz-Rabelo
- Unidad de Gestión Clínica de Cirugía General y Digestivo, Sección de Obesidad, IMIBIC, Reina Sofia University Hospital, Córdoba, Spain
| | - Abhay Pandit
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - José López-Miranda
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.,Lipids and Atherosclerosis Unit, IMIBIC, Reina Sofia University Hospital, University of Córdoba, Córdoba, Spain
| | - Francisco J Tinahones
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.,Department of Endocrinology and Nutrition, Virgen de la Victoria Hospital (IBIMA), University of Málaga, Málaga, Spain
| | - María M Malagón
- Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Reina Sofia University Hospital, Córdoba, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
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8
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Gentile AM, Lhamyani S, Coín-Aragüez L, Clemente-Postigo M, Oliva Olivera W, Romero-Zerbo SY, García-Serrano S, García-Escobar E, Zayed H, Doblado E, Bermúdez-Silva FJ, Murri M, Tinahones FJ, El Bekay R. miR-20b, miR-296, and Let-7f Expression in Human Adipose Tissue is Related to Obesity and Type 2 Diabetes. Obesity (Silver Spring) 2019; 27:245-254. [PMID: 30597763 DOI: 10.1002/oby.22363] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 10/03/2018] [Indexed: 12/16/2022]
Abstract
OBJECTIVE This study aimed to analyze the potential association of different microRNA (miRNA) molecules with both type 2 diabetes (T2D) and obesity and determine their target genes. METHODS Quantitative PCR was used to analyze the miR-20b, miR-296, and Let-7f levels in human visceral and subcutaneous adipose tissues (ATs) in relation to obesity and T2D, miRTarBase 4.0 was used for validation of target genes, and the Protein Analysis Through Evolutionary Relationships (PANTHER) Classification System and the Database for Annotation, Visualization and Integrated Discovery (DAVID) were used to annotate the biological processes of the predicted targets. RESULTS In AT, miR-20b, miR-296, and Let-7f levels were significantly different between normoglycemic subjects and those with T2D. In visceral adipose tissue, miRNA levels were higher in normoglycemic/obesity samples than in T2D/obesity samples. miR-20b-miR-296 and Let-7f target genes that showed significant differences in both ATs in relation to obesity and T2D were CDKN1A, CX3CL1, HIF1A, PPP2R1B, STAT3, and VEGFA. These genes are known to be principally involved in the vascular endothelial growth factor (VEGF) and WNT pathways. CONCLUSIONS This study provides experimental evidence of the possible correlation between AT miR-20b-miR-296-Let-7f with obesity and T2D, which might involve vascular endothelial growth factor and WNT-dependent pathways that are regulated by six different genes, suggesting a novel signaling pathway that could be important for understanding the mechanisms underlying the AT dysfunction associated with obesity and T2D.
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Affiliation(s)
- Adriana-Mariel Gentile
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario, Universidad de Málaga, Campus Teatinos s/n - 29010, Málaga, Spain
| | - Said Lhamyani
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario, Universidad de Málaga, Campus Teatinos s/n - 29010, Málaga, Spain
| | - Leticia Coín-Aragüez
- Unidad de Gestión Clinica de Endocrinologia y Nutricion, Instituto de Investigacion Biomedica de Malaga (IBIMA), Hospital Universitario Virgen de la Victoria, CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Málaga, Spain
| | - Mercedes Clemente-Postigo
- Unidad de Gestión Clinica de Endocrinologia y Nutricion, Instituto de Investigacion Biomedica de Malaga (IBIMA), Hospital Universitario Virgen de la Victoria, CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Málaga, Spain
| | - Wilfredo Oliva Olivera
- Unidad de Gestión Clinica de Endocrinologia y Nutricion, Instituto de Investigacion Biomedica de Malaga (IBIMA), Hospital Universitario Virgen de la Victoria, CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Málaga, Spain
| | - Silvana-Yanina Romero-Zerbo
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario, CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Málaga, Spain
| | - Sara García-Serrano
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario, CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Málaga, Spain
| | - Eva García-Escobar
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario, CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Málaga, Spain
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
| | - Esther Doblado
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario, Universidad de Málaga, Campus Teatinos s/n - 29010, Málaga, Spain
| | - Francisco-Javier Bermúdez-Silva
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario, CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Málaga, Spain
| | - Mora Murri
- Unidad de Gestión Clinica de Endocrinologia y Nutricion, Instituto de Investigacion Biomedica de Malaga (IBIMA), Hospital Universitario Virgen de la Victoria, CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Málaga, Spain
| | - Francisco J Tinahones
- Unidad de Gestión Clinica de Endocrinologia y Nutricion, Instituto de Investigacion Biomedica de Malaga (IBIMA), Hospital Universitario Virgen de la Victoria, CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Málaga, Spain
| | - Rajaa El Bekay
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario, CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Institute of Health Carlos III, Málaga, Spain
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9
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Clemente-Postigo M, Oliva-Olivera W, Coin-Aragüez L, Ramos-Molina B, Giraldez-Perez RM, Lhamyani S, Alcaide-Torres J, Perez-Martinez P, El Bekay R, Cardona F, Tinahones FJ. Metabolic endotoxemia promotes adipose dysfunction and inflammation in human obesity. Am J Physiol Endocrinol Metab 2019; 316:E319-E332. [PMID: 30422702 DOI: 10.1152/ajpendo.00277.2018] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Impaired adipose tissue (AT) lipid handling and inflammation is associated with obesity-related metabolic diseases. Circulating lipopolysaccharides (LPSs) from gut microbiota (metabolic endotoxemia), proposed as a triggering factor for the low-grade inflammation in obesity, might also be responsible for AT dysfunction. Nevertheless, this hypothesis has not been explored in human obesity. To analyze the relationship between metabolic endotoxemia and AT markers for lipogenesis, lipid handling, and inflammation in human obesity, 33 patients with obesity scheduled for surgery were recruited and classified according to their LPS levels. Visceral and subcutaneous AT gene and protein expression were analyzed and adipocyte and AT in vitro assays performed. Subjects with obesity with a high degree of metabolic endotoxemia had lower expression of key genes for AT function and lipogenesis ( SREBP1, FABP4, FASN, and LEP) but higher expression of inflammatory genes in visceral and subcutaneous AT than subjects with low LPS levels. In vitro experiments corroborated that LPS are responsible for adipocyte and AT inflammation and downregulation of PPARG, SCD, FABP4, and LEP expression and LEP secretion. Thus, metabolic endotoxemia influences AT physiology in human obesity by decreasing the expression of factors involved in AT lipid handling and function as well as by increasing inflammation.
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Affiliation(s)
- Mercedes Clemente-Postigo
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria/Universidad de Málaga. Málaga, Spain
- Centro de Investigación Biomédica En Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII) , Málaga , Spain
| | - Wilfredo Oliva-Olivera
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria/Universidad de Málaga. Málaga, Spain
- Centro de Investigación Biomédica En Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII) , Málaga , Spain
| | - Leticia Coin-Aragüez
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria/Universidad de Málaga. Málaga, Spain
- Centro de Investigación Biomédica En Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII) , Málaga , Spain
| | - Bruno Ramos-Molina
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria/Universidad de Málaga. Málaga, Spain
- Centro de Investigación Biomédica En Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII) , Málaga , Spain
| | - Rosa María Giraldez-Perez
- Departamento Biología Celular, Genética y Fisiología, Facultad de Ciencias. Universidad de Málaga , Spain
| | - Said Lhamyani
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario/Universidad de Málaga , Málaga , Spain
| | - Juan Alcaide-Torres
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria/Universidad de Málaga. Málaga, Spain
- Centro de Investigación Biomédica En Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII) , Málaga , Spain
| | - Pablo Perez-Martinez
- Centro de Investigación Biomédica En Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII) , Málaga , Spain
- Lipid and Atherosclerosis Research Unit, Reina Sofia University Hospital, University of Cordoba , Cordoba , Spain
| | - Rajaa El Bekay
- Centro de Investigación Biomédica En Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII) , Málaga , Spain
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario/Universidad de Málaga , Málaga , Spain
| | - Fernando Cardona
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria/Universidad de Málaga. Málaga, Spain
- Centro de Investigación Biomédica En Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII) , Málaga , Spain
| | - Francisco J Tinahones
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria/Universidad de Málaga. Málaga, Spain
- Centro de Investigación Biomédica En Red (CIBER) Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII) , Málaga , Spain
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10
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Coín-Aragüez L, Pavón FJ, Contreras A, Gentile AM, Lhamyani S, De Diego-Otero Y, Casado Y, Oliva Olivera W, Olveira G, Tinahones FJ, Pérez Costillas L, El Bekay R. Inflammatory gene expression in adipose tissue according to diagnosis of anxiety and mood disorders in obese and non-obese subjects. Sci Rep 2018; 8:17518. [PMID: 30504920 PMCID: PMC6269530 DOI: 10.1038/s41598-018-35759-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 11/06/2018] [Indexed: 12/28/2022] Open
Abstract
Psychiatric disorders have been widely reported to be associated with systemic inflammation upregulation and adiposity. However, there are no data that link adipose tissue inflammation to these mental disorders. The analysis of adipokines and inflammation-related markers in adipose tissue could help to elucidate the potential association between obesity and mental health. An observational study was conducted in samples of patients consisting of non-obese and obese subjects, who were diagnosed with anxiety or mood disorders. Gene expression of adiponectin (ADIPOQ), leptin (LEP) and inflammatory markers (IL6, IL1B, TNF, CCL2, CSF3, ITGAM, and PLAUR) were determined in visceral (VAT) and subcutaneous (SAT) adipose tissues. Our results showed that the gene expression of adipokines and inflammation-related markers was higher in the VAT and SAT of obese subjects compared with non-obese subjects. Regarding mental disorders, all the inflammatory genes in the VAT were significantly higher in non-obese subjects with anxiety or mood disorders than in subjects without mental disorders, except for TNF and ITGAM. Additionally, IL6 expression was significantly lower in SAT. In contrast, obese patients diagnosed with anxiety or mood disorders only showed significantly lower expression levels of IL1B in VAT and ADIPOQ in SAT when compared with obese subjects without mental disorders. These data suggest the potential involvement of VAT inflammation in anxiety and mood disorders, involving complex mechanisms which are strongly affected by obesity.
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Affiliation(s)
- Leticia Coín-Aragüez
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Málaga, Spain
| | - Francisco Javier Pavón
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, Málaga, Spain
| | - Alba Contreras
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, Málaga, Spain
| | - Adriana-Mariel Gentile
- IBIMA, Universidad de Málaga, Facultad de Ciencias, Campus Teatinos s/n - 29071, Málaga, Spain
| | - Said Lhamyani
- IBIMA, Universidad de Málaga, Facultad de Ciencias, Campus Teatinos s/n - 29071, Málaga, Spain
| | - Yolanda De Diego-Otero
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, Málaga, Spain
| | - Yolanda Casado
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, Málaga, Spain
| | - Wilfredo Oliva Olivera
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Málaga, Spain
| | - Gabriel Olveira
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, CIBERDEM CB07/08/0019, Instituto de Salud Carlos III, Málaga, Spain
| | - Francisco J Tinahones
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Málaga, Spain
| | - Lucía Pérez Costillas
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, Málaga, Spain.
| | - Rajaa El Bekay
- Unidad de Gestión Clínica Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III (ISCIII), Málaga, Spain.
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11
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Oliva-Olivera W, Lhamyani S, Coín-Aragüez L, Alcaide-Torres J, Cardona F, El Bekay R, Tinahones FJ. Involvement of acetyl-CoA-producing enzymes in the deterioration of the functional potential of adipose-derived multipotent cells from subjects with metabolic syndrome. Metabolism 2018; 88:12-21. [PMID: 30172756 DOI: 10.1016/j.metabol.2018.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The expansion capacity of white adipose tissue influences the distribution of fat depots in the body, the visceral accumulation of which is linked to metabolic syndrome, regardless of the degree of obesity of the subjects. Alterations in the adipose tissue-derived mesenchymal stem cells (ASCs) may contribute to the adipose tissue remodeling associated with metabolic syndrome and impact the regional distribution of adipose tissue by generating inherently dysfunctional adipocytes. Here we examine the expression levels of acetyl-CoA-producing enzymes and their relationship with the lipogenic, antioxidant and oxidative potential of adipocytes generated from visceral ASCs (adipo-visASCs) and subcutaneous ASCs (adipo-subASCs) from subjects with different metabolic profiles. MATERIALS/METHODS Paired samples of visceral and subcutaneous adipose tissue were processed to isolate the respective ASCs from normal-weight (Nw) subjects and obese patients with metabolic syndrome (METS) and without METS (NonMETS). qPCR was used to quantify the expression levels of the genes studied in both adipo-ASCs from the patient groups and those generated after silencing by small interfering RNA of acetyl-CoA-producing enzymes. The accumulation of lipids was quantified by absorbance. RESULTS No significant differences in cell yield or CD34+CD31-CD45- ASC percentage were observed between the different patient groups. Unlike adipo-visASCs, adipo-subASCs from METS patients showed a decrease in expression levels of acetyl-CoA-producing enzymes as well as proteins linked to lipogenesis, antioxidant defense and fatty acid oxidation. Transcriptional silencing of acetyl-CoA-producing enzymes in adipo-subASCs reduced lipid accumulation and affected transcription levels of lipogenic and antioxidant defense proteins. CONCLUSIONS Adipo-subASCs may be more susceptible than adipo-visASCs to deterioration of the lipogenic, oxidative and antioxidant potential associated with metabolic syndrome. Intrinsic alterations in transcription levels of acetyl-CoA-producing enzymes may contribute to the metabolic reprogramming of adipo-subASCs from METS patients.
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Affiliation(s)
- Wilfredo Oliva-Olivera
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Spain; Pathophysiology of Obesity and Nutrition, CIBEROBN, Institute of Health Carlos III, ISCIII, Spain.
| | - Said Lhamyani
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Spain; Pathophysiology of Obesity and Nutrition, CIBEROBN, Institute of Health Carlos III, ISCIII, Spain
| | - Leticia Coín-Aragüez
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Spain; Pathophysiology of Obesity and Nutrition, CIBEROBN, Institute of Health Carlos III, ISCIII, Spain
| | - Juan Alcaide-Torres
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Spain; Pathophysiology of Obesity and Nutrition, CIBEROBN, Institute of Health Carlos III, ISCIII, Spain
| | - Fernando Cardona
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Spain; Pathophysiology of Obesity and Nutrition, CIBEROBN, Institute of Health Carlos III, ISCIII, Spain
| | - Rajaa El Bekay
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Spain; Pathophysiology of Obesity and Nutrition, CIBEROBN, Institute of Health Carlos III, ISCIII, Spain.
| | - Francisco J Tinahones
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Spain; Pathophysiology of Obesity and Nutrition, CIBEROBN, Institute of Health Carlos III, ISCIII, Spain.
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12
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Abdel-Motal UM, G A, Abdelalim EM, Ponnuraja C, Iken K, Jahromi M, Doss GP, El Bekay R, Zayed H. Prevalence of nephropathy in type 1 diabetes in the Arab world: A systematic review and meta-analysis. Diabetes Metab Res Rev 2018; 34:e3026. [PMID: 29774648 DOI: 10.1002/dmrr.3026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/13/2018] [Accepted: 05/07/2018] [Indexed: 11/08/2022]
Abstract
The aim of this study was to conduct a systematic review and meta-analysis and determine the prevalence of diabetic nephropathy (DN) among Arab patients with T1D. A systematic literature search was conducted using 4 different literature databases (PubMed, ScienceDirect, Web of Science, and Embase) to capture all relevant data about Arab patients with T1D that had DN. Meta-analysis and systematic review were performed using the random effect model, and the heterogeneity of the studies was assessed using the Q-test, I2, and Tau-squared statistics. Publication bias was assessed using the funnel-plot test. Our search strategy captured 372 studies in only 10 out of the 22 Arab countries in a period of 48 years (1969-2017); of which, 41 met our inclusion criteria for full article analysis, of those, 15 were eligible for meta-analysis. We estimated the prevalence of DN among Arab people with T1D to be 18.2% (95% confidence interval 13.1%-24.8%). In conclusion, DN prevalence is underexplored among Arab patients with T1D and represents a significant risk for the well-being of Arab patients with T1D. Therefore, there is an urgent need for comprehensive epidemiological studies for DN among Arab patients with T1D.
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Affiliation(s)
- Ussama M Abdel-Motal
- Division of Translational Medicine, Research Branch, Sidra Medicine, Doha, Qatar
| | - Akila G
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
| | - Essam M Abdelalim
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Chinnaiyan Ponnuraja
- Department of Statistics, National Institute for Research in Tuberculosis, Chennai, India
| | - Khadija Iken
- Department of Medicine/Paediatrics', Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - George Priya Doss
- Department of Integrative Biology, School of Biosciences and Technology, VIT University, Vellore, India
| | - Rajaa El Bekay
- CIBER Pathophysiology of obesity and nutrition CB06/03, Carlos III Health Institute. Unidad de Gestion Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Málaga, Spain
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
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13
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Oliva-Olivera W, Coín-Aragüez L, Lhamyani S, Salas J, Gentile AM, Romero-Zerbo SY, Zayed H, Valderrama J, Tinahones FJ, El Bekay R. Differences in the neovascular potential of thymus versus subcutaneous adipose-derived stem cells from patients with myocardial ischaemia. J Tissue Eng Regen Med 2018; 12:e1772-e1784. [PMID: 29024495 DOI: 10.1002/term.2585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 07/19/2017] [Accepted: 10/03/2017] [Indexed: 12/13/2022]
Abstract
Adipose tissue-derived multipotent mesenchymal cells (ASCs) participate in the information of blood vessels under hypoxic conditions. It is probable that the susceptibility of ASCs to the influence of age and ageing-associated pathologies compromises their therapeutic effectiveness depending on the adipose tissue depot. Our aim was to examine the neovascular potential under hypoxic conditions of ASCs-derived from thymic (thymASCs) and subcutaneous (subASCs) adipose tissue from 39 subjects with and without type 2 diabetes mellitus (T2DM) and of different ages who were undergoing coronary bypass surgery. We confirmed a significant decrease in the percentage of CD34+ CD31- CD45- subASCs in the cell yield of subASCs and in the survival of cultured endothelial cells in the medium conditioned by the hypox-subASCs with increasing patient age, which was not observed in thymASCs. Whereas the length of the tubules generated by hypox-subASCs tended to correlate negatively with patient age, tubule formation capacity of the hypoxic thymASCs increased significantly. Compared with subASCs, thymASCs from subjects over age 65 and without T2DM showed higher cell yield, tubule formation capacity, vascular endothelial growth factor secretion levels, and ability to promote endothelial cell survival in their conditioned medium. Deterioration in subASCs neovascular potential relative to thymASCs derived from these subjects was accompanied by higher expression levels of NOX4 mRNA and fibrotic proteins. Our results indicate that thymASCs from patients over age 65 and without T2DM have a higher angiogenic potential than those from the other patient groups, suggesting they may be a good candidate for angiogenic therapy in subjects undergoing coronary bypass surgery.
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Affiliation(s)
- Wilfredo Oliva-Olivera
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Clinical Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Malaga, Spain.,CIBER-The Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Malaga, Spain
| | - Leticia Coín-Aragüez
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Clinical Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Malaga, Spain.,CIBER-The Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Malaga, Spain
| | | | - Julián Salas
- Cardiovascular Surgery Department, Carlos Haya University Hospital, Malaga, Spain
| | | | - Silvana-Yanina Romero-Zerbo
- Unidad de Gestión Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Malaga, Spain.,Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Malaga, Spain
| | - Hatem Zayed
- Biomedical Sciences Program, Health Sciences Department, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Jf Valderrama
- Cardiovascular Surgery Department, Carlos Haya University Hospital, Malaga, Spain
| | - Francisco José Tinahones
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Clinical Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Malaga, Spain.,CIBER-The Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Malaga, Spain
| | - Rajaa El Bekay
- CIBER-The Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Malaga, Spain.,Unidad de Gestión Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Malaga, Spain
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14
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Oliva-Olivera W, Moreno-Indias I, Coín-Aragüez L, Lhamyani S, Alcaide Torres J, Fernández-Veledo S, Vendrell J, Camargo A, El Bekay R, Tinahones FJ. Different response to hypoxia of adipose-derived multipotent cells from obese subjects with and without metabolic syndrome. PLoS One 2017; 12:e0188324. [PMID: 29166648 PMCID: PMC5699836 DOI: 10.1371/journal.pone.0188324] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 11/03/2017] [Indexed: 12/27/2022] Open
Abstract
Background/Objectives Multiple studies suggest that hypoxia, together with inflammation, could be one of the phenomena involved in the onset and progression of obesity-related insulin resistance. In addition, dysfunction of adipose tissue in obese subjects with metabolic syndrome is associated with decreased angiogenesis. However, some subjects with a high body mass index do not develop metabolic abnormalities associated with obesity. The aim of the current study was to examine the neovascular properties of visceral adipose tissue-derived multipotent mesenchymal cells subjected to hypoxia (hypox-visASCs) from normal-weight subjects (Nw) and obese patients with metabolic syndrome (MS) and without metabolic syndrome (NonMS). Methods This was a 2-year study to enroll subjects who underwent bariatric surgery or cholecystectomy. Eight patients who underwent either bariatric surgery or cholecystectomy (27 patients) participated in the study. Visceral adipose tissue samples from Nw, MS and NonMS subjects were processed by enzymatic digestion. VisASCs cultured under hypoxic conditions were characterized by tubule formation assay, ELISA, flow cytometry, migration rate, and qRT-PCR, and the effects of visASCs-conditioned medium on survival and endothelial cell tubule formation were evaluated. Results Hypox-visASCs from NonMS subjects showed a greater capacity for tubule formation than hypox-visASCs from Nw and MS subjects. The lower percentage of CD140b+/CD44+ and CD140b+/CD184+ cells observed in hypox-visASCs from NonMS subjects compared to MS subjects was accompanied not only by a lower migration rate from the chemotactic effects of stromal cell derived factor 1α, but also by lower levels of NOX5 mRNA expression. While the levels of monocyte chemoattractant protein 1 mRNA expressed by hypox-visASCs correlated positively with the body mass index and waist circumference of the subjects, the concentration of vascular endothelial growth factor present in hypox-visASC-conditioned culture medium decreased significantly with increasing plasma glucose. The survival rate and tubules formed by endothelial cells cultured in hypox-visASC-conditioned medium decreased significantly with increasing homeostasis model assessment to quantify insulin resistance. Conclusions Our results suggest that hypox-visASCs from NonMS subjects could promote healthy adipose tissue expansion, while hypox-visASCs from MS subjects appear to contribute to the decreased angiogenic potential and increased inflammation underlying adipose tissue dysfunction in obesity. Our results emphasize the importance of taking into account not only the BMI but also the metabolic profile of the subjects during the implementation of ASCs-based therapy to promote neovascularization.
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Affiliation(s)
- Wilfredo Oliva-Olivera
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
- * E-mail: (FJT); (REB); (WOO)
| | - Isabel Moreno-Indias
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Leticia Coín-Aragüez
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Said Lhamyani
- Research Laboratory, Science School, University of Málaga (UMA), Málaga, Spain
| | - Juan Alcaide Torres
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Sonia Fernández-Veledo
- Hospital Universitari de Tarragona Joan XXIII, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovirai Virgili, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Joan Vendrell
- Hospital Universitari de Tarragona Joan XXIII, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovirai Virgili, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio Camargo
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
- Lipids and Atherosclerosis Unit, IMIBIC/Reina Sofia University Hospital/University of Córdoba, Córdoba, Spain
| | - Rajaa El Bekay
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
- * E-mail: (FJT); (REB); (WOO)
| | - Francisco José Tinahones
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
- * E-mail: (FJT); (REB); (WOO)
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15
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Oliva-Olivera W, Lhamyani S, Coín-Aragüez L, Castellano-Castillo D, Alcaide-Torres J, Yubero-Serrano EM, El Bekay R, Tinahones FJ. Neovascular deterioration, impaired NADPH oxidase and inflammatory cytokine expression in adipose-derived multipotent cells from subjects with metabolic syndrome. Metabolism 2017; 71:132-143. [PMID: 28521866 DOI: 10.1016/j.metabol.2017.03.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 02/24/2017] [Accepted: 03/23/2017] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Expansion of adipose tissue depends on the growth of its vascular network and it has been shown that adipose tissue dysfunction in obese subjects with the metabolic syndrome is associated with decreased angiogenesis. However, some subjects with a high body mass index do not develop metabolic abnormalities associated with obesity. In this study we examined the neovascular properties, expression levels of proteins involved in cellular redox balance and inflammatory cytokines in adipose-derived multipotent mesenchymal cells (ASCs) of subjects with different metabolic profiles. MATERIALS/METHODS We applied cell culture, flow cytometry, RT-qPCR and ELISA techniques to characterize the ASCs isolated from paired biopsies of visceral (visASCs) and subcutaneous (subASCs) adipose tissue from 39 subjects grouped into normal weight (Nw), obese without metabolic syndrome (NonMS) and with metabolic syndrome (MS). RESULTS VisASCs and subASCs from MS subjects showed a decrease in tubules formation capacity compared to ASCs from NonMS subjects as well as changes in the expression levels of proteins involved in cell redox balance and secretion levels of proteins linked to the senescence-associated secretory phenotype. Deterioration in the neovascular properties of subASCs from the MS subjects was also evident in the decreased levels of VEGF secretion during adipogenesis and in the effects of the conditioned medium on endothelial cell tubule formation. CONCLUSIONS Our findings suggest a redox imbalance status in ASCs from subjects with metabolic syndrome and decreased their neovascular function that probably contributes to the vascular insufficiency of adipose depots.
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Affiliation(s)
- Wilfredo Oliva-Olivera
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain; CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Spain.
| | - Said Lhamyani
- Research Laboratory, Science School, University of Málaga (UMA), Campus Teatinos s/n, 29010 Málaga, Spain
| | - Leticia Coín-Aragüez
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain; CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Spain
| | - Daniel Castellano-Castillo
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain; CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Spain
| | - Juan Alcaide-Torres
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain; CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Spain
| | - Elena María Yubero-Serrano
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain; Lipids and Atherosclerosis Unit, Maimonides Institute of Biomedical Research of Córdoba, Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain
| | - Rajaa El Bekay
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain; CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Spain.
| | - Francisco José Tinahones
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Málaga, Spain; CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Spain.
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16
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Oliva-Olivera W, Coín-Aragüez L, Lhamyani S, Clemente-Postigo M, Torres JA, Bernal-López MR, El Bekay R, Tinahones FJ. Adipogenic Impairment of Adipose Tissue-Derived Mesenchymal Stem Cells in Subjects With Metabolic Syndrome: Possible Protective Role of FGF2. J Clin Endocrinol Metab 2017; 102:478-487. [PMID: 27967316 DOI: 10.1210/jc.2016-2256] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 12/08/2016] [Indexed: 11/19/2022]
Abstract
CONTEXT The decreased expansion capacity of adipose tissue plays a crucial role in the onset of disorders associated with metabolic syndrome. OBJECTIVE The aim of this study was to examine the state of adipose tissue-derived mesenchymal stem cells (ASCs) from obese subjects with different metabolic profiles. DESIGN This was a 2-year study to enroll subjects who underwent bariatric surgery or cholecystectomy. SETTING University Hospital. PATIENTS AND INTERVENTION Patients who underwent either bariatric surgery (20 morbidly obese) or cholecystectomy (40 subjects) participated in the study. MAIN OUTCOME MEASURES ASCs were obtained from both visceral and subcutaneous adipose tissue. Adipogenic, fibrotic gene expression was quantified by quantitative polymerase chain reaction; Smad7 and fibroblast growth factor 2 were quantified by western blotting and enzyme-linked immunosorbent assay, respectively. The susceptibility of ASCs to apoptosis, their population doubling time, and their clonogenic potential were evaluated. RESULTS The worsening metabolic profile of the patients was accompanied by a decrease in the intrinsic levels of adipogenic gene expression, reduced proliferation rate, clonogenic potential, and exportation of fibroblast growth factor 2 to the cell surface of the ASCs derived from both tissues. In addition, the ASCs from patients without metabolic syndrome showed differences in susceptibility to apoptosis and expression of TGFβ-signaling inhibitory protein Smad7 with respect to the ASCs from patients with metabolic syndrome. CONCLUSION Our results suggest that the decrease in adipogenic-gene mRNA and clonogenic potential, as well as the accumulation of fibrotic proteins with metabolic alterations, could be a relevant mechanism controlling the number and size of neogenerated adipocytes and involved in alteration of adipose-tissue expansion.
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Affiliation(s)
- Wilfredo Oliva-Olivera
- Departments of Clinical Endocrinology and Nutrition, and
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Leticia Coín-Aragüez
- Departments of Clinical Endocrinology and Nutrition, and
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Said Lhamyani
- Departments of Clinical Endocrinology and Nutrition, and
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Mercedes Clemente-Postigo
- Departments of Clinical Endocrinology and Nutrition, and
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Juan Alcaide Torres
- Departments of Clinical Endocrinology and Nutrition, and
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Maria Rosa Bernal-López
- Internal Medicine, Regional University Hospital of Málaga, Institute of Biomedical Research of Málaga, Hospital of Málaga (Virgen de la Victoria), University of Málaga, Málaga 29010, Spain; and
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Rajaa El Bekay
- Departments of Clinical Endocrinology and Nutrition, and
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Francisco José Tinahones
- Departments of Clinical Endocrinology and Nutrition, and
- CIBER Fisiopatología Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid 28029, Spain
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17
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Moseilhy A, Hassan MM, El Abd HSA, Mohammad SA, El Bekay R, Abdel-Motal UM, Ouhtit A, Zaki OK, Zayed H. Severe neurological manifestations in an Egyptian patient with a novel frameshift mutation in the Glutaryl-CoA dehydrogenase gene. Metab Brain Dis 2017; 32:35-40. [PMID: 27476540 DOI: 10.1007/s11011-016-9879-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/19/2016] [Indexed: 11/28/2022]
Abstract
To characterize an Egyptian patient with glutaric acidemia type I (GA I) and to identify the causative mutation(s) that may be responsible for the disease phenotype. MRI was performed on the patient using the 1.5 T magnet, biochemical analysis was carried out using gas chromatography/mass spectrometry on the patient's dried blood spot, and the patient's organic acids were measured in dried blood and a urine sample using MS/MS and GC/MS, respectively. Total RNA was isolated from the patient's peripheral blood, and the synthesized cDNA was bi-directionally sequenced. The patient exhibited clinical features and MRI findings compatible with a diagnosis of GA I. The abnormal elevation of organic acids in the urine supported the presence of glutaryl-CoA dehydrogenase deficiency. Gene sequencing revealed a novel homozygous frameshift mutation, c.644_645insCTCG; p.(Pro217Leufs*14), in exon 8 of the GCDH gene. The present study revealed a novel frameshift mutation responsible for a severe GA I phenotype in an Egyptian patient. This novel mutation will ultimately contribute to a better understanding of the molecular pathology of the disease and shed light on the intricacies of the genotype-phenotype correlation of GA I disease.
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Affiliation(s)
- Ahmed Moseilhy
- Medical Genetics Unit, Pediatric Department, Faculty of Medicine, Ain Shams University Hospital, Cairo, 11665, Egypt
| | - Magdy M Hassan
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Heba S A El Abd
- Medical Genetics Unit, Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Shaimaa A Mohammad
- Department of Radiodiagnosis, Faculty of Medicine, Ain-Shams University, Cairo, Egypt
| | - Rajaa El Bekay
- Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, 29010, Málaga, Spain
| | | | - Allal Ouhtit
- Department of Biological & Environmental Sciences, College of Arts & Sciences, Qatar University, Doha, Qatar
| | - Osama K Zaki
- Medical Genetics Unit, Pediatric Department, Faculty of Medicine, Ain Shams University Hospital, Cairo, 11665, Egypt.
- Medical Genetics Unit, Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
| | - Hatem Zayed
- Biomedical Sciences Department, College of Health Sciences, Qatar University, Doha, Qatar.
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18
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Zaki OK, Krishnamoorthy N, El Abd HS, Harche SA, Mattar RA, Al Disi RS, Nofal MY, El Bekay R, Ahmed KA, George Priya Doss C, Zayed H. Two patients with Canavan disease and structural modeling of a novel mutation. Metab Brain Dis 2017; 32:171-177. [PMID: 27531131 DOI: 10.1007/s11011-016-9896-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 08/08/2016] [Indexed: 10/21/2022]
Abstract
Canavan disease (CD) is a rare fatal childhood neurological autosomal recessive genetic disease caused by mutations in the ASPA gene, which lead to catalytic deficiency of the ASPA enzyme, which catalyzes the hydrolysis of N-acetyl-L-aspartate (NAA) into aspartate and acetate. CD occurs frequently among Ashkenazi Jewish population, however it has been reported in many other ethnic groups with significantly lower frequency. Here, we report on two Egyptian patients diagnosed with CD, the first patient harbors five missense mutations (c.427 A > G; p. I143V, c.502C > T; p. R168C, c.530 T > C; p. I177T, c.557 T > C; p. V186D c.548C > T; p. P183L) and a silent mutation (c.693 C > T; p. Y231Y). The second patient was found to be homozygous for two missense mutations (c.427 A > G; p. I143V and c.557 T > A; p. V186D). Furthermore, molecular modeling of the novel mutation p. P183L provides an instructive explanation of the mutational impact on the protein structure that can affect the function of the ASPA. Here, the clinical, radiological, and biochemical profile of the two patients are reviewed in details.
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Affiliation(s)
- Osama K Zaki
- Medical Genetics Unit, Pediatric Department, Faculty of Medicine, Ain Shams University Hospital, Cairo, 11665, Egypt.
| | - Navaneethakrishnan Krishnamoorthy
- Division of Experimental Genetics, Sidra Medical and Research Centre, Qatar Foundation, Doha, Qatar
- Heart Science Centre, National Heart and Lung Institute, Imperial College London, Harefield, UK
| | - Heba S El Abd
- Medical Genetics Unit, Pediatric Department, Faculty of Medicine, Ain Shams University Hospital, Cairo, 11665, Egypt
| | - Soumaya A Harche
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
| | - Reem A Mattar
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
| | - Rana S Al Disi
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
| | - Mariam Y Nofal
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
| | - Rajaa El Bekay
- Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, 29010, Málaga, Spain
| | - Khalid A Ahmed
- Medical Genetics Unit, Pediatric Department, Faculty of Medicine, Ain Shams University Hospital, Cairo, 11665, Egypt
| | - C George Priya Doss
- Department of Integrative Biology, School of Biosciences and Technology, VIT- University, Vellore, India
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar.
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Doss CGP, Alasmar DR, Bux RI, Sneha P, Bakhsh FD, Al-Azwani I, El Bekay R, Zayed H. Corrigendum: Genetic Epidemiology of Glucose-6-Phosphate Dehydrogenase Deficiency in the Arab World. Sci Rep 2017; 7:39370. [PMID: 28045019 PMCID: PMC5206616 DOI: 10.1038/srep39370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Abstract
BACKGROUND The Arab world encompasses twenty-two Arabic-speaking countries, where the rate of consanguinity can exceed 50%. Type 1 diabetes (T1D), a chronic disorder that requires lifelong treatment, is believed to be largely due to genetic predisposition. The objective of this review is to discuss the benefits of establishing an Arab population-based diabetes registry, which will provide a reference for T1D prevalence and incidence. METHODS An online search was carried out through various websites, including PubMed, government, hospitals and health ministries of the 22 Arab countries to understand the reporting activities of diabetes in the Arab world. RESULTS AND CONCLUSION The prevalence and incidence of T1D is variable among Arabs, with the availability of only a few national/regional diabetes registries to support diabetes research, provide reliable data, and to cope with the widespread threat of this disease. Hence, the need of establishing a population based Arab diabetes registry.
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Affiliation(s)
- Hatem Zayed
- a College of Health and Sciences, Biomedical Sciences Department , Qatar University , Doha , Qatar
| | - Allal Ouhtit
- b Department of Biological and Environmental Sciences, College of Arts and Sciences , Qatar University , Doha , Qatar
| | - Rajaa El Bekay
- c CIBER Pathophysiology of Obesity and Nutrition CB06/03 , Carlos III Health Institute , Malaga , Spain
- d Laboratory of Biomedical Research , Virgen de la Victoria Clinical University Hospital , Málaga , Spain
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21
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Gentile AM, Lhamyani S, Coín-Aragüez L, Oliva-Olivera W, Zayed H, Vega-Rioja A, Monteseirin J, Romero-Zerbo SY, Tinahones FJ, Bermúdez-Silva FJ, El Bekay R. RPL13A and EEF1A1 Are Suitable Reference Genes for qPCR during Adipocyte Differentiation of Vascular Stromal Cells from Patients with Different BMI and HOMA-IR. PLoS One 2016; 11:e0157002. [PMID: 27304673 PMCID: PMC4909211 DOI: 10.1371/journal.pone.0157002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 05/23/2016] [Indexed: 12/21/2022] Open
Abstract
Real-time or quantitative PCR (qPCR) is a useful technique that requires reliable reference genes for data normalization in gene expression analysis. Adipogenesis is among the biological processes suitable for this technique. The selection of adequate reference genes is essential for qPCR gene expression analysis of human Vascular Stromal Cells (hVSCs) during their differentiation into adipocytes. To the best of our knowledge, there are no studies validating reference genes for the analyses of visceral and subcutaneous adipose tissue hVSCs from subjects with different Body Mass Index (BMI) and Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) index. The present study was undertaken to analyze this question. We first analyzed the stability of expression of five potential reference genes: CYC, GAPDH, RPL13A, EEF1A1, and 18S ribosomal RNA, during in vitro adipogenic differentiation, in samples from these types of patients. The expression of RPL13A and EEF1A1 was not affected by differentiation, thus being these genes the most stable candidates, while CYC, GAPDH, and 18S were not suitable for this sort of analysis. This work highlights that RPL13A and EEF1A1 are good candidates as reference genes for qPCR analysis of hVSCs differentiation into adipocytes from subjects with different BMI and HOMA-IR.
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Affiliation(s)
| | - Said Lhamyani
- IBIMA, Universidad de Málaga, Campus Teatinos s/n, 29010, Málaga, España
| | - Leticia Coín-Aragüez
- CIBER Pathophysiology of obesity and nutrition CB06/03, Carlos III Health Institute, Malaga, 29010, Spain, Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, 29010, Spain
| | - Wilfredo Oliva-Olivera
- CIBER Pathophysiology of obesity and nutrition CB06/03, Carlos III Health Institute, Malaga, 29010, Spain, Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, 29010, Spain
| | - Hatem Zayed
- Biomedical Sciences Program, Health Sciences Department, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Antonio Vega-Rioja
- Unidad de Gestión Clínica de Alergia Intercentros, Hospital Universitario Virgen Macarena, Sevilla, Spain
- * E-mail: (AVR); (FJBS); (REB)
| | - Javier Monteseirin
- Unidad de Gestión Clínica de Alergia Intercentros, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - Silvana-Yanina Romero-Zerbo
- Unidad de Gestion Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, 29009, Málaga, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Málaga, Spain
| | - Francisco-José Tinahones
- CIBER Pathophysiology of obesity and nutrition CB06/03, Carlos III Health Institute, Malaga, 29010, Spain, Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, 29010, Spain
- Endocrinology Service, Virgen de la Victoria Clinical University Hospital, Malaga, 29010, Spain
| | - Francisco-Javier Bermúdez-Silva
- Unidad de Gestion Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, 29009, Málaga, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Málaga, Spain
- * E-mail: (AVR); (FJBS); (REB)
| | - Rajaa El Bekay
- CIBER Pathophysiology of obesity and nutrition CB06/03, Carlos III Health Institute, Malaga, 29010, Spain, Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, 29010, Spain
- * E-mail: (AVR); (FJBS); (REB)
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22
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El Bekay R, Coín-Aragüez L, Fernández-García D, Oliva-Olivera W, Bernal-López R, Clemente-Postigo M, Delgado-Lista J, Diaz-Ruiz A, Guzman-Ruiz R, Vázquez-Martínez R, Lhamyani S, Roca-Rodríguez MM, Veledo SF, Vendrell J, Malagón MM, Tinahones FJ. Effects of glucagon-like peptide-1 on the differentiation and metabolism of human adipocytes. Br J Pharmacol 2016; 173:1820-34. [PMID: 26993859 DOI: 10.1111/bph.13481] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 02/15/2016] [Accepted: 02/29/2016] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND AND PURPOSE Glucagon-like peptide-1 (GLP-1) analogues improve glycaemic control in type 2 diabetic (T2D) patients and cause weight loss in obese subjects by as yet unknown mechanisms. We recently demonstrated that the GLP-1 receptor, which is present in adipocytes and the stromal vascular fraction of human adipose tissue (AT), is up-regulated in AT of insulin-resistant morbidly obese subjects compared with healthy lean subjects. The aim of this study was to explore the effects of in vitro and in vivo administration of GLP-1 and its analogues on AT and adipocyte functions from T2D morbidly obese subjects. EXPERIMENTAL APPROACH We analysed the effects of GLP-1 on human AT and isolated adipocytes in vitro and the effects of GLP-1 mimetics on AT of morbidly obese T2D subjects in vivo. KEY RESULTS GLP-1 down-regulated the expression of lipogenic genes when administered during in vitro differentiation of human adipocytes from morbidly obese patients. GLP-1 also decreased the expression of adipogenic/lipogenic genes in AT explants and mature adipocytes, while increasing that of lipolytic markers and adiponectin. In 3T3-L1 adipocytes, GLP-1 decreased free cytosolic Ca2+ concentration ([Ca2+]i). GLP-1-induced responses were only partially blocked by GLP-1 receptor antagonist exendin (9–39). Moreover, administration of exenatide or liraglutide reduced adipogenic and inflammatory marker mRNA in AT of T2D obese subjects. CONCLUSIONS AND IMPLICATIONS Our data suggest that the beneficial effects of GLP-1 are associated with changes in the adipogenic potential and ability of AT to expand, via activation of the canonical GLP-1 receptor and an additional, as yet unknown, receptor.
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Affiliation(s)
- Rajaa El Bekay
- CIBER Pathophysiology of Obesity and Nutrition CB06/03, Carlos III Health Institute, Malaga, Spain.,Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, Spain
| | - Leticia Coín-Aragüez
- CIBER Pathophysiology of Obesity and Nutrition CB06/03, Carlos III Health Institute, Malaga, Spain.,Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, Spain
| | - Diego Fernández-García
- CIBER Pathophysiology of Obesity and Nutrition CB06/03, Carlos III Health Institute, Malaga, Spain.,Endocrinology Service, Virgen de la Victoria Clinical University Hospital, Malaga, Spain
| | - Wilfredo Oliva-Olivera
- CIBER Pathophysiology of Obesity and Nutrition CB06/03, Carlos III Health Institute, Malaga, Spain.,Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, Spain
| | - Rosa Bernal-López
- CIBER Pathophysiology of Obesity and Nutrition CB06/03, Carlos III Health Institute, Malaga, Spain.,Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, Spain
| | - Mercedes Clemente-Postigo
- CIBER Pathophysiology of Obesity and Nutrition CB06/03, Carlos III Health Institute, Malaga, Spain.,Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, Spain
| | - Javier Delgado-Lista
- Lipids and Atherosclerosis Unit, Department of Medicine, IMIBIC/Reina Sofia University Hospital/University of Córdoba, Córdoba, Spain
| | - Alberto Diaz-Ruiz
- Department of Cell Biology, Physiology, and Immunology, IMIBIC/Reina Sofia University Hospital/Universidad de Cordoba, CIBERobn, Córdoba, Spain
| | - Rocío Guzman-Ruiz
- Department of Cell Biology, Physiology, and Immunology, IMIBIC/Reina Sofia University Hospital/Universidad de Cordoba, CIBERobn, Córdoba, Spain
| | - Rafael Vázquez-Martínez
- Department of Cell Biology, Physiology, and Immunology, IMIBIC/Reina Sofia University Hospital/Universidad de Cordoba, CIBERobn, Córdoba, Spain
| | - Said Lhamyani
- CIBER Pathophysiology of Obesity and Nutrition CB06/03, Carlos III Health Institute, Malaga, Spain.,Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, Spain
| | - María Mar Roca-Rodríguez
- CIBER Pathophysiology of Obesity and Nutrition CB06/03, Carlos III Health Institute, Malaga, Spain.,Laboratory of Biomedical Research, Virgen de la Victoria Clinical University Hospital, Málaga, Spain
| | | | - Joan Vendrell
- CIBERDEM, Joan XXIII University Hospital, Pere Virgili Institute, Tarragona, Spain
| | - María M Malagón
- Department of Cell Biology, Physiology, and Immunology, IMIBIC/Reina Sofia University Hospital/Universidad de Cordoba, CIBERobn, Córdoba, Spain
| | - Francisco José Tinahones
- CIBER Pathophysiology of Obesity and Nutrition CB06/03, Carlos III Health Institute, Malaga, Spain.,Endocrinology Service, Virgen de la Victoria Clinical University Hospital, Malaga, Spain
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Oliva-Olivera W, Leiva Gea A, Lhamyani S, Coín-Aragüez L, Alcaide Torres J, Bernal-López MR, García-Luna PP, Morales Conde S, Fernández-Veledo S, El Bekay R, Tinahones FJ. Differences in the Osteogenic Differentiation Capacity of Omental Adipose-Derived Stem Cells in Obese Patients With and Without Metabolic Syndrome. Endocrinology 2015; 156:4492-501. [PMID: 26372179 PMCID: PMC4655209 DOI: 10.1210/en.2015-1413] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Multiple studies have suggested that the reduced differentiation capacity of multipotent adipose tissue-derived mesenchymal stem cells (ASCs) in obese subjects could compromise their use in cell therapy. Our aim was to assess the osteogenic potential of omental ASCs and to examine the status of the isolated CD34(negative)-enriched fraction of omental-derived ASCs from subjects with different metabolic profiles. Omental ASCs from normal-weight subjects and subjects with or without metabolic syndrome were isolated, and the osteogenic potential of omental ASCs was evaluated. Additionally, osteogenic and clonogenic potential, proliferation rate, mRNA expression levels of proteins involved in redox balance, and fibrotic proteins were examined in the CD34(negative)-enriched fraction of omental-derived ASCs. Both the omental ASCs and the CD34(negative)-enriched fraction of omental ASCs from subjects without metabolic syndrome have a greater osteogenic potential than those from subjects with metabolic syndrome. The alkaline phosphatase and osteonectin mRNA were negatively correlated with nicotinamide adenine dinucleotide phosphate oxidase-2 mRNA and the mRNA expression levels of the fibrotic proteins correlated positively with nicotinamide adenine dinucleotide phosphate oxidase-5 mRNA and the homeostasis model assessment. Although the population doubling time was significantly higher in subjects with a body mass index of 25 kg/m(2) or greater, only the CD34(negative)-enriched omental ASC fraction in the subjects with metabolic syndrome had a higher population doubling time than the normal-weight subjects. The osteogenic, clonogenic, fibrotic potential, and proliferation rate observed in vitro suggest that omental ASCs from subjects without metabolic syndrome are more suitable for therapeutic osteogenic applications than those from subjects with metabolic syndrome.
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Affiliation(s)
- Wilfredo Oliva-Olivera
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Antonio Leiva Gea
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Said Lhamyani
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Leticia Coín-Aragüez
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Juan Alcaide Torres
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Maria Rosa Bernal-López
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Pedro Pablo García-Luna
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Salvador Morales Conde
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Sonia Fernández-Veledo
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Rajaa El Bekay
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Francisco José Tinahones
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
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Bermudez-Silva FJ, Romero-Zerbo SY, Haissaguerre M, Ruz-Maldonado I, Lhamyani S, El Bekay R, Tabarin A, Marsicano G, Cota D. The cannabinoid CB1 receptor and mTORC1 signalling pathways interact to modulate glucose homeostasis in mice. Dis Model Mech 2015; 9:51-61. [PMID: 26563389 PMCID: PMC4728331 DOI: 10.1242/dmm.020750] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 11/02/2015] [Indexed: 12/31/2022] Open
Abstract
The endocannabinoid system (ECS) is an intercellular signalling mechanism that is present in the islets of Langerhans and plays a role in the modulation of insulin secretion and expansion of the β-cell mass. The downstream signalling pathways mediating these effects are poorly understood. Mammalian target of rapamycin complex 1 (mTORC1) signalling is a key intracellular pathway involved in energy homeostasis and is known to importantly affect the physiology of pancreatic islets. We investigated the possible relationship between cannabinoid type 1 (CB1) receptor signalling and the mTORC1 pathway in the endocrine pancreas of mice by using pharmacological analysis as well as mice genetically lacking the CB1 receptor or the downstream target of mTORC1, the kinase p70S6K1. In vitro static secretion experiments on islets, western blotting, and in vivo glucose and insulin tolerance tests were performed. The CB1 receptor antagonist rimonabant decreased glucose-stimulated insulin secretion (GSIS) at 0.1 µM while increasing phosphorylation of p70S6K1 and ribosomal protein S6 (rpS6) within the islets. Specific pharmacological blockade of mTORC1 by 3 nM rapamycin, as well as genetic deletion of p70S6K1, impaired the CB1-antagonist-mediated decrease in GSIS. In vivo experiments showed that 3 mg/kg body weight rimonabant decreased insulin levels and induced glucose intolerance in lean mice without altering peripheral insulin sensitivity; this effect was prevented by peripheral administration of low doses of rapamycin (0.1 mg/kg body weight), which increased insulin sensitivity. These findings suggest a functional interaction between the ECS and the mTORC1 pathway within the endocrine pancreas and at the whole-organism level, which could have implications for the development of new therapeutic approaches for pancreatic β-cell diseases. Summary: Evidence supporting a functional interaction between the endocannabinoid system and the mTORC1 pathway within the endocrine pancreas, which could have implications for the development of new therapeutic approaches for diabetes.
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Affiliation(s)
- Francisco J Bermudez-Silva
- Unidad de Gestion Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Málaga 29009, Spain Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Málaga 29009, Spain INSERM, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France Université de Bordeaux, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France
| | - Silvana Y Romero-Zerbo
- Unidad de Gestion Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Málaga 29009, Spain Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Málaga 29009, Spain
| | - Magalie Haissaguerre
- INSERM, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France Université de Bordeaux, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France
| | - Inmaculada Ruz-Maldonado
- Unidad de Gestion Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Málaga 29009, Spain Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Málaga 29009, Spain
| | - Said Lhamyani
- Unidad de Gestion Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Málaga 29009, Spain
| | - Rajaa El Bekay
- Unidad de Gestion Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Málaga 29009, Spain
| | - Antoine Tabarin
- INSERM, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France Université de Bordeaux, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France Service d'endocrinologie, diabétologie, maladies métaboliques et nutrition, Hôpital Haut-Lévêque, Pessac F-33604, France
| | - Giovanni Marsicano
- INSERM, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France Université de Bordeaux, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France
| | - Daniela Cota
- INSERM, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France Université de Bordeaux, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, U862, Bordeaux F-33000, France
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25
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Díaz-Ruiz A, Guzmán-Ruiz R, Moreno NR, García-Rios A, Delgado-Casado N, Membrives A, Túnez I, El Bekay R, Fernández-Real JM, Tovar S, Diéguez C, Tinahones FJ, Vázquez-Martínez R, López-Miranda J, Malagón MM. Proteasome Dysfunction Associated to Oxidative Stress and Proteotoxicity in Adipocytes Compromises Insulin Sensitivity in Human Obesity. Antioxid Redox Signal 2015; 23:597-612. [PMID: 25714483 PMCID: PMC4554552 DOI: 10.1089/ars.2014.5939] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIMS Obesity is characterized by a low-grade systemic inflammatory state and adipose tissue (AT) dysfunction, which predispose individuals to the development of insulin resistance (IR) and metabolic disease. However, a subset of obese individuals, referred to as metabolically healthy obese (MHO) individuals, are protected from obesity-associated metabolic abnormalities. Here, we aim at identifying molecular factors and pathways in adipocytes that are responsible for the progression from the insulin-sensitive to the insulin-resistant, metabolically unhealthy obese (MUHO) phenotype. RESULTS Proteomic analysis of paired samples of adipocytes from subcutaneous (SC) and omental (OM) human AT revealed that both types of cells are altered in the MUHO state. Specifically, the glutathione redox cycle and other antioxidant defense systems as well as the protein-folding machinery were dysregulated and endoplasmic reticulum stress was increased in adipocytes from IR subjects. Moreover, proteasome activity was also compromised in adipocytes of MUHO individuals, which was associated with enhanced accumulation of oxidized and ubiquitinated proteins in these cells. Proteasome activity was also impaired in adipocytes of diet-induced obese mice and in 3T3-L1 adipocytes exposed to palmitate. In line with these data, proteasome inhibition significantly impaired insulin signaling in 3T3-L1 adipocytes. INNOVATION This study provides the first evidence of the occurrence of protein homeostasis deregulation in adipocytes in human obesity, which, together with oxidative damage, interferes with insulin signaling in these cells. CONCLUSION Our results suggest that proteasomal dysfunction and impaired proteostasis in adipocytes, resulting from protein oxidation and/or misfolding, constitute major pathogenic mechanisms in the development of IR in obesity.
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Affiliation(s)
- Alberto Díaz-Ruiz
- 1 Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica (IMIBIC)/Reina Sofia University Hospital/University of Córdoba , Córdoba, Spain .,2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain
| | - Rocío Guzmán-Ruiz
- 1 Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica (IMIBIC)/Reina Sofia University Hospital/University of Córdoba , Córdoba, Spain .,2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain
| | - Natalia R Moreno
- 1 Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica (IMIBIC)/Reina Sofia University Hospital/University of Córdoba , Córdoba, Spain .,2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain
| | - Antonio García-Rios
- 2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain .,3 Lipids and Atherosclerosis Unit, IMIBIC/Reina Sofia University Hospital/University of Córdoba , Córdoba, Spain
| | - Nieves Delgado-Casado
- 2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain .,3 Lipids and Atherosclerosis Unit, IMIBIC/Reina Sofia University Hospital/University of Córdoba , Córdoba, Spain
| | - Antonio Membrives
- 4 Unidad de Gestión Clínica de Cirugía General y Digestivo. Sección de Obesidad, IMIBIC/Reina Sofia University Hospital , Córdoba, Spain
| | - Isaac Túnez
- 5 Department of Biochemistry and Molecular Biology, IMIBIC/Reina Sofia University Hospital/University of Córdoba , Córdoba, Spain
| | - Rajaa El Bekay
- 2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain .,6 Biomedical Research Laboratory, Endocrinology Department, Hospital Virgen de la Victoria , Málaga, Spain
| | - José M Fernández-Real
- 2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain .,7 Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomédica de Girona (IdIBGi) , Girona, Spain
| | - Sulay Tovar
- 2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain .,8 Department of Physiology, School of Medicine-CIMUS-Instituto de Investigaciones Sanitarias (IDIS), University of Santiago de Compostela , Santiago de Compostela, A Coruña, Spain
| | - Carlos Diéguez
- 2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain .,8 Department of Physiology, School of Medicine-CIMUS-Instituto de Investigaciones Sanitarias (IDIS), University of Santiago de Compostela , Santiago de Compostela, A Coruña, Spain
| | - Francisco J Tinahones
- 2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain .,6 Biomedical Research Laboratory, Endocrinology Department, Hospital Virgen de la Victoria , Málaga, Spain
| | - Rafael Vázquez-Martínez
- 1 Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica (IMIBIC)/Reina Sofia University Hospital/University of Córdoba , Córdoba, Spain .,2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain
| | - José López-Miranda
- 2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain .,3 Lipids and Atherosclerosis Unit, IMIBIC/Reina Sofia University Hospital/University of Córdoba , Córdoba, Spain
| | - María M Malagón
- 1 Department of Cell Biology, Physiology, and Immunology, Instituto Maimónides de Investigación Biomédica (IMIBIC)/Reina Sofia University Hospital/University of Córdoba , Córdoba, Spain .,2 CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III , Córdoba, Spain
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26
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Roca-Rodríguez MM, El Bekay R, Garrido-Sanchez L, Gómez-Serrano M, Coin-Aragüez L, Oliva-Olivera W, Lhamyani S, Clemente-Postigo M, García-Santos E, de Luna Diaz R, Yubero-Serrano EM, Fernández Real JM, Peral B, Tinahones FJ. Parathyroid Hormone-Related Protein, Human Adipose-Derived Stem Cells Adipogenic Capacity and Healthy Obesity. J Clin Endocrinol Metab 2015; 100:E826-35. [PMID: 25885945 DOI: 10.1210/jc.2014-4132] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE This study aimed to define the potential role of PTHrP on adipogenic regulation and to analyze its relationship with obesity and insulin resistance. DESIGN This was a cross-sectional study in which visceral (VAT) and subcutaneous (SAT) adipose tissue were extracted from 19 morbidly obese, 10 obese, and 10 lean subjects. PTHrP mRNA levels were measured in VAT and SAT. VAT mesenchymal stem cells and 3T3-L1 cells were differentiated into adipocytes in presence or absence of PTHrP siRNA. PTHrP mRNA and protein levels as well as adipogenic markers were evaluated by Western blotting or qPCR. Immunohistochemistry and immunofluorescence procedures were used for PTHrP intracellular localization. RESULTS Both human VAT and SAT express PTHrP protein mainly in the nucleolar compartment of stromal vascular fraction cells. The highest levels of PTHrP mRNA and protein expression were detected in undifferentiated mesenchymal cells and progressively decreased during adipogenesis. Remarkably, adipogenic differentiation in human mesenchymal stem cells (A-hMSC) was significantly impaired in a pthrp knockdown. PTHrP seems to be related to obesity-associated insulin resistance (IR), given that we found that PTHrP mRNA expression was higher in VAT from morbidly obese with a low IR degree (MO-L-IR) subjects than those from morbidly obese with a high IR degree (MO-H-IR) and lean subjects, and correlated positively with body mass index and hip circumference. We also found that A-hMSC from MO-L-IRs displayed higher adipogenic capacity than those from both MO-H-IRs and leans. In addition, adipogenesis was impaired in VAT from MO-H-IRs, given that mRNA expression levels of key adipogenic regulators were lower than those from MO-L-IR subjects. CONCLUSIONS PTHrP could be a potential new therapeutic target for the reprograming of adipogenesis and adipose tissue expansion, thus possibly ameliorating the metabolic syndrome in obese subjects.
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Affiliation(s)
- María Mar Roca-Rodríguez
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Rajaa El Bekay
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Lourdes Garrido-Sanchez
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - María Gómez-Serrano
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Leticia Coin-Aragüez
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Wilfredo Oliva-Olivera
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Said Lhamyani
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Mercedes Clemente-Postigo
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Eva García-Santos
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Resi de Luna Diaz
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Elena M Yubero-Serrano
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - José M Fernández Real
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Belén Peral
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
| | - Francisco J Tinahones
- Unidad de Gestión Clínica Endocrinología y Nutrición (M.M.R.R., R.E., L.G.S., L.C.A., W.O.O., S.L., M.C.P., F.J.T.), Instituto de Investigación Biomédica de Málaga, Complejo Hospitalario de Málaga (Virgen de la Victoria), Universidad de Málaga, CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Málaga, Spain; Instituto de Investigaciones Biomédicas Alberto Sols (M.G.S., E.G.S., B.P.), Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Cirugía General y Digestiva (R.d.L.D.), Hospital Universitario Virgen de la Victoria, Málaga, Spain; Lipids and Atherosclerosis Unit (E.M.Y.S.), IMIBIC/Reina Sofia University Hospital/University of Córdoba and CIBEROBN, Instituto de Salud Carlos III, Córdoba, Spain; and Departamento de Diabetes, Endocrinología y Nutrición (J.M.F.R.), Institut d'Investigació Biomèdica de Girona, CIBEROBN e ISCIII, Girona, Spain
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Fernández-García JC, Murri M, Coin-Aragüez L, Alcaide J, El Bekay R, Tinahones FJ. GLP-1 and peptide YY secretory response after fat load is impaired by insulin resistance, impaired fasting glucose and type 2 diabetes in morbidly obese subjects. Clin Endocrinol (Oxf) 2014; 80:671-6. [PMID: 23573808 DOI: 10.1111/cen.12221] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 02/20/2013] [Accepted: 04/06/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Both glucagon-like peptide-1 (GLP-1) and peptide YY (PYY) are gut hormones involved in energy homoeostasis. Obesity, insulin resistance and hyperglycaemia are significant confounders when GLP-1 and PYY secretion is assessed. Thus, we evaluated GLP-1 and PYY response after fat load in morbidly obese patients with different degrees of insulin resistance and glycemic status. DESIGN We studied 40 morbidly obese subjects (mean age, 40·6 ± 1·3 years; mean BMI, 53·1 ± 1·2 kg/m(2) ) divided into groups according to their glycemic status: normal fasting glucose (NFG) group, impaired fasting glucose (IFG) group and type 2 diabetes mellitus (T2D) group. NFG patients were additionally subclassified, according to the homoeostasis model assessment of insulin resistance (HOMAIR ), into a low insulin-resistance (LIR) group (HOMAIR <3·9) or a high insulin-resistance (HIR) group (HOMAIR ≥3·9). MEASUREMENTS Lipid emulsion was administered orally and measurements made at baseline and 180 min postprandially of levels of GLP-1, PYY, insulin, glucose, free fatty acids, triglycerides and leptin. RESULTS At the 180-minute postprandial reading, GLP-1 and PYY had increased in LIR-NFG subjects (41·84%, P = 0·01; 35·7%, P = 0·05; respectively), whereas no changes were observed in HIR-NFG, IFG or T2D subjects. CONCLUSIONS These results suggest that in morbidly obese subjects, both insulin resistance and abnormal glucose metabolism (IFG or T2D) impair the GLP-1 and PYY response to fat load. The implications of this attenuated enteroendocrine response should be elucidated by further studies.
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Affiliation(s)
- José C Fernández-García
- Department of Endocrinology, Virgen de la Victoria University Hospital, Málaga, Spain; Research laboratory, Virgen de la Victoria University Hospital, Málaga, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERObn CB06/003), Instituto de Salud Carlos III, Madrid, Spain
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Coín Aragüez L, Murri M, Oliva Olivera W, Salas J, Mayas MD, Delgado-Lista J, Tinahones F, El Bekay R. Thymus fat as an attractive source of angiogenic factors in elderly subjects with myocardial ischemia. Age (Dordr) 2013; 35:1263-75. [PMID: 22576336 PMCID: PMC3705093 DOI: 10.1007/s11357-012-9418-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Accepted: 04/18/2012] [Indexed: 05/13/2023]
Abstract
Aging negatively affects angiogenesis which is found to be linked to declined vascular endothelial growth factor (VEGF) production. Adult human thymus degenerates into fat tissue (thymus adipose tissue (TAT)). Recently, we described that TAT from cardiomyopathy ischemic subjects has angiogenic properties. The goal of our study was to analyze whether aging could also impair angiogenic properties in TAT as in other adipose tissue such as subcutaneous (subcutaneous adipose tissue (SAT)). SAT and TAT specimens were obtained from 35 patients undergoing cardiac surgery, making these tissues readily available as a prime source of adipose tissue. Patients were separated into two age-dependent groups; middle-aged (n = 18) and elderly (n = 17). Angiogenic, endothelial, and adipogenic expression markers were analyzed in both tissues from each group and correlations were examined between these parameters and also with age. There were no significant differences in subjects from either group in clinical or biological variables. Angiogenic markers VEGF-A, B, C, and D and adipogenic parameters, peroxisome proliferator-activated receptors (PPARγ2), FABP4, and ADRP showed elevated expression levels in TAT from elderly patients compared to the middle-aged group, while in SAT, expression levels of these isoforms were significantly decreased in elderly patients. VEGF-R1, VEGF-R2, VEGF-R3, Thy1, CD31, CD29, and VLA1 showed increased levels in TAT from the elderly compared to the middle-aged, while in SAT these levels displayed a decline with aging. Also, in TAT, angiogenic and endothelial parameters exhibited strong positive correlations with age. TAT appears to be the most appropriate source of angiogenic and endothelial factors in elderly cardiomyopathy subjects compared to SAT.
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Affiliation(s)
- Leticia Coín Aragüez
- />CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Malaga, Spain
- />Laboratorio de Investigación Biomédica, Hospital Clínico Universitario Virgen de la Victoria, Campus de Teatinos s/n 29010, Málaga, Spain
| | - Mora Murri
- />CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Malaga, Spain
- />Laboratorio de Investigación Biomédica, Hospital Clínico Universitario Virgen de la Victoria, Campus de Teatinos s/n 29010, Málaga, Spain
| | - Wilfredo Oliva Olivera
- />CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Malaga, Spain
- />Laboratorio de Investigación Biomédica, Hospital Clínico Universitario Virgen de la Victoria, Campus de Teatinos s/n 29010, Málaga, Spain
| | - Julian Salas
- />Departamento de Cirugía Cardiovascular, Hospital Regional Universitario Carlos Haya, Málaga, Spain
| | - Maria Dolores Mayas
- />CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Malaga, Spain
- />Laboratorio de Investigación Biomédica, Hospital Clínico Universitario Virgen de la Victoria, Campus de Teatinos s/n 29010, Málaga, Spain
| | - Javier Delgado-Lista
- />Unidad de Lípidos y Arteriosclerosis, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Francisco Tinahones
- />CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Malaga, Spain
- />Laboratorio de Investigación Biomédica, Hospital Clínico Universitario Virgen de la Victoria, Campus de Teatinos s/n 29010, Málaga, Spain
- />Servicio de Endocrinología, Hospital Virgen de la Victoria, Málaga, Spain
| | - Rajaa El Bekay
- />CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Malaga, Spain
- />Laboratorio de Investigación Biomédica, Hospital Clínico Universitario Virgen de la Victoria, Campus de Teatinos s/n 29010, Málaga, Spain
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Garrido-Sanchez L, Escote X, Coin-Aragüez L, Fernandez-Garcia JC, El Bekay R, Vendrell J, Garcia-Fuentes E, Tinahones FJ. Munc18c in adipose tissue is downregulated in obesity and is associated with insulin. PLoS One 2013; 8:e63937. [PMID: 23700440 PMCID: PMC3659121 DOI: 10.1371/journal.pone.0063937] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 04/09/2013] [Indexed: 02/07/2023] Open
Abstract
Objective Munc18c is associated with glucose metabolism and could play a relevant role in obesity. However, little is known about the regulation of Munc18c expression. We analyzed Munc18c gene expression in human visceral (VAT) and subcutaneous (SAT) adipose tissue and its relationship with obesity and insulin. Materials and Methods We evaluated 70 subjects distributed in 12 non-obese lean subjects, 23 overweight subjects, 12 obese subjects and 23 nondiabetic morbidly obese patients (11 with low insulin resistance and 12 with high insulin resistance). Results The lean, overweight and obese persons had a greater Munc18c gene expression in adipose tissue than the morbidly obese patients (p<0.001). VAT Munc18c gene expression was predicted by the body mass index (B = −0.001, p = 0.009). In SAT, no associations were found by different multiple regression analysis models. SAT Munc18c gene expression was the main determinant of the improvement in the HOMA-IR index 15 days after bariatric surgery (B = −2148.4, p = 0.038). SAT explant cultures showed that insulin produced a significant down-regulation of Munc18c gene expression (p = 0.048). This decrease was also obtained when explants were incubated with liver X receptor alpha (LXRα) agonist, either without (p = 0.038) or with insulin (p = 0.050). However, Munc18c gene expression was not affected when explants were incubated with insulin plus a sterol regulatory element-binding protein-1c (SREBP-1c) inhibitor (p = 0.504). Conclusions Munc18c gene expression in human adipose tissue is down-regulated in morbid obesity. Insulin may have an effect on the Munc18c expression, probably through LXRα and SREBP-1c.
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Affiliation(s)
- Lourdes Garrido-Sanchez
- Endocrinology and Diabetes Unit, Joan XXIII University Hospital, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Tarragona, Spain
| | - Xavier Escote
- Endocrinology and Diabetes Unit, Joan XXIII University Hospital, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Tarragona, Spain
| | - Leticia Coin-Aragüez
- Servicio de Endocrinología y Nutrición, Hospital Clínico Virgen de la Victoria, Malaga, Spain
- Ciber Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain
| | | | - Rajaa El Bekay
- Servicio de Endocrinología y Nutrición, Hospital Clínico Virgen de la Victoria, Malaga, Spain
- Ciber Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain
- Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Málaga, Spain
| | - Joan Vendrell
- Endocrinology and Diabetes Unit, Joan XXIII University Hospital, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Tarragona, Spain
| | - Eduardo Garcia-Fuentes
- Ciber Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain
- Instituto de Investigaciones Biomédicas de Málaga (IBIMA), Málaga, Spain
- Servicio de Endocrinología y Nutrición, Hospital Regional Universitario Carlos Haya, Malaga, Spain
- * E-mail: (EGF); (FT)
| | - Francisco J. Tinahones
- Servicio de Endocrinología y Nutrición, Hospital Clínico Virgen de la Victoria, Malaga, Spain
- Ciber Fisiopatología Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain
- * E-mail: (EGF); (FT)
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Abstract
Histamine is an important mediator in the development of allergic reactions. Only a small subset of human cell types is able to produce histamine. No previous studies have shown that human neutrophils are among them. The present work was undertaken to analyze whether human neutrophils produce histamine, and to determine what agonists are involved in histamine production by human neutrophils. The expression of histidine decarboxylase in human neutrophils was established by quantitative PCR, Western blotting, and flow cytometry analysis. The activity of the enzyme was determined by ELISA, which measured histamine in the culture supernatant of neutrophils stimulated with a set of classical agonists. Human neutrophils are bona fide histamine-producing cells. Neutrophils store ∼0.29 pg/cell and release ∼50% of the histamine content in an antigen-dependent manner and on stimulation with other neutrophil agonists. Basal expression of histidine decarboxylase, the rate-limiting enzyme in histamine production, is higher in neutrophils from patients with allergies than from healthy donors. Our results cannot be ascribed to cell contamination for several reasons. LPS failed to induce histamine release by basophils, whereas it induced histamine release by neutrophils; and we did not detect basophils, monocytes, or lymphocytes in our neutrophil preparations. Eosinophils, albeit detected, were only 0.001-0.004% of the final cell population, and they did not store or release histamine on antigen or LPS stimulation. Antigens to which patients with allergies were sensitized stimulated release of histamine from neutrophils. These observations represent a novel view of neutrophils as possible source of histamine in the allergic diseases.
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Affiliation(s)
- Lorena Alcañiz
- Servicio Regional de Inmunología y Alergia, Hospital Universitario Virgen Macarena, Seville, Spain
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Tinahones FJ, Coín Aragüez L, Murri M, Oliva Olivera W, Mayas Torres MD, Barbarroja N, Gomez Huelgas R, Malagón MM, El Bekay R. Caspase induction and BCL2 inhibition in human adipose tissue: a potential relationship with insulin signaling alteration. Diabetes Care 2013; 36. [PMID: 23193206 PMCID: PMC3579349 DOI: 10.2337/dc12-0194] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Cell death determines the onset of obesity and associated insulin resistance. Here, we analyze the relationship among obesity, adipose tissue apoptosis, and insulin signaling. RESEARCH DESIGN AND METHODS The expression levels of initiator (CASP8/9) and effector (CASP3/7) caspases as well as antiapoptotic B-cell lymphoma (BCL)2 and inflammatory markers were assessed in visceral (VAT) and subcutaneous (SAT) adipose tissue from patients with different degrees of obesity and without insulin resistance or diabetes. Adipose tissue explants from lean subjects were cultured with TNF-α or IL-6, and the expression of apoptotic and insulin signaling components was analyzed and compared with basal expression levels in morbidly obese subjects. RESULTS SAT and VAT exhibited increased CASP3/7 and CASP8/9 expression levels and decreased BCL2 expression with BMI increase. These changes were accompanied by increased inflammatory cytokine mRNA levels and macrophage infiltration markers. In obese subjects, CASP3/7 activation and BCL2 downregulation correlated with the IRS-1/2-expression levels. Expression levels of caspases, BCL2, p21, p53, IRS-1/2, GLUT4, protein tyrosine phosphatase 1B, and leukocyte antigen-related phosphatase in TNF-α- or IL-6-treated explants from lean subjects were comparable with those found in adipose tissue samples from morbidly obese subjects. These insulin component expression levels were reverted with CASP3/7 inhibition in these TNF-α- or IL-6-treated explants. CONCLUSIONS Body fat mass increase is associated with CASP3/7 and BCL2 expression in adipose tissue. Moreover, this proapoptotic state correlated with insulin signaling, suggesting its potential contribution to the development of insulin resistance.
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Affiliation(s)
- Francisco José Tinahones
- CIBER in Physiopathology of Obesity and Nutrition (CB06/03), Instituto de Salud Carlos III, Spain.
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Barbarroja N, Lopez-Pedrera C, Garrido-Sanchez L, Mayas MD, Oliva-Olivera W, Bernal-Lopez MR, El Bekay R, Tinahones FJ. Progression from high insulin resistance to type 2 diabetes does not entail additional visceral adipose tissue inflammation. PLoS One 2012; 7:e48155. [PMID: 23110196 PMCID: PMC3480488 DOI: 10.1371/journal.pone.0048155] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Accepted: 09/21/2012] [Indexed: 02/07/2023] Open
Abstract
Obesity is associated with a low-grade chronic inflammation state. As a consequence, adipose tissue expresses pro-inflammatory cytokines that propagate inflammatory responses systemically elsewhere, promoting whole-body insulin resistance and consequential islet β-cell exhaustation. Thus, insulin resistance is considered the early stage of type 2 diabetes. However, there is evidence of obese individuals that never develop diabetes indicating that the mechanisms governing the association between the increase of inflammatory factors and type 2 diabetes are much more complex and deserve further investigation. We studied for the first time the differences in insulin signalling and inflammatory pathways in blood and visceral adipose tissue (VAT) of 20 lean healthy donors and 40 equal morbidly obese (MO) patients classified in high insulin resistance (high IR) degree and diabetes state. We studied the changes in proinflammatory markers and lipid content from serum; macrophage infiltration, mRNA expression of inflammatory cytokines and transcription factors, activation of kinases involved in inflammation and expression of insulin signalling molecules in VAT. VAT comparison of these experimental groups revealed that type 2 diabetic-MO subjects exhibit the same pro-inflammatory profile than the high IR-MO patients, characterized by elevated levels of IL-1β, IL-6, TNFα, JNK1/2, ERK1/2, STAT3 and NFκB. Our work rules out the assumption that the inflammation should be increased in obese people with type 2 diabetes compared to high IR obese. These findings indicate that some mechanisms, other than systemic and VAT inflammation must be involved in the development of type 2 diabetes in obesity.
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Affiliation(s)
- Nuria Barbarroja
- Servicio de Endocrinología y Nutrición, Hospital Virgen de la Victoria (Fundación IMABIS), Málaga, Spain.
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Alba G, Santa-María C, Reyes-Quiroz ME, El Bekay R, Geniz I, Martín-Nieto J, Pintado E, Sobrino F. Calcineurin expression and activity is regulated by the intracellular redox status and under hypertension in human neutrophils. J Endocrinol 2012; 214:399-408. [PMID: 22739212 DOI: 10.1530/joe-12-0106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Calcineurin (protein phosphatase 2B) (CN) comprises a family of serine/threonine phosphatases that play a pivotal role in signal transduction cascades in a variety of cells, including neutrophils. Angiotensin II (Ang II) increases both activity and de novo synthesis of CN in human neutrophils. This study focuses on the role that intracellular redox status plays in the induction of CN activity by Ang II. Both de novo synthesis of CN and activity increase promoted by Ang II were downregulated when cells were treated with L-buthionine-(S,R)-sulfoximine, an inhibitor of synthesis of the antioxidant glutathione. We have also investigated the effect of pyrrolidine dithiocarbamate and phenazine methosulfate, which are antioxidant and oxidant compounds, respectively, and concluded that the intracellular redox status of neutrophils is highly critical for Ang II-induced increase of CN expression and activity. Results obtained in neutrophils from hypertensive patients were very similar to those obtained in these cells on treatment with Ang II. We have also addressed the possible functional implication of CN activation in the development of hypertension. Present findings indicate that downregulation of hemoxygenase-1 expression in neutrophils from hypertensive subjects is likely mediated by CN, which acts by hindering translocation to the nucleus of the transcription factor NRF2. These data support and extend our previous results and those from other authors on modulation of CN expression and activity levels by the intracellular redox status.
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Affiliation(s)
- Gonzalo Alba
- Departamento de Bioquímica Médica y Biología Molecular, Facultad de Medicina and Departamento de Bioquímica y Biología Molecular, Universidad de Sevilla, Avenida Sánchez Pizjuán 4, E-41009 Sevilla, Spain
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Tinahones FJ, Coín-Aragüez L, Mayas MD, Garcia-Fuentes E, Hurtado-Del-Pozo C, Vendrell J, Cardona F, Calvo RM, Obregon MJ, El Bekay R. Obesity-associated insulin resistance is correlated to adipose tissue vascular endothelial growth factors and metalloproteinase levels. BMC Physiol 2012; 12:4. [PMID: 22471305 PMCID: PMC3382430 DOI: 10.1186/1472-6793-12-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Accepted: 04/02/2012] [Indexed: 12/15/2022]
Abstract
Background The expansion of adipose tissue is linked to the development of its vasculature, which appears to have the potential to regulate the onset of obesity. However, at present, there are no studies highlighting the relationship between human adipose tissue angiogenesis and obesity-associated insulin resistance (IR). Results Our aim was to analyze and compare angiogenic factor expression levels in both subcutaneous (SC) and omentum (OM) adipose tissues from morbidly obese patients (n = 26) with low (OB/L-IR) (healthy obese) and high (OB/H-IR) degrees of IR, and lean controls (n = 17). Another objective was to examine angiogenic factor correlations with obesity and IR. Here we found that VEGF-A was the isoform with higher expression in both OM and SC adipose tissues, and was up-regulated 3-fold, together with MMP9 in OB/L-IR as compared to leans. This up-regulation decreased by 23% in OB/-H-IR compared to OB/L-IR. On the contrary, VEGF-B, VEGF-C and VEGF-D, together with MMP15 was down-regulated in both OB/H-IR and OB/L-IR compared to lean patients. Moreover, MMP9 correlated positively and VEGF-C, VEGF-D and MMP15 correlated negatively with HOMA-IR, in both SC and OM. Conclusion We hereby propose that the alteration in MMP15, VEGF-B, VEGF-C and VEGF-D gene expression may be caused by one of the relevant adipose tissue processes related to the development of IR, and the up-regulation of VEGF-A in adipose tissue could have a relationship with the prevention of this pathology.
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Affiliation(s)
- Francisco José Tinahones
- CIBER Fisiopatología Obesidad y Nutrición (CB06/03), Instituto de Salud Carlos III, Madrid, Spain
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Vendrell J, El Bekay R, Peral B, García-Fuentes E, Megia A, Macias-Gonzalez M, Fernández Real J, Jimenez-Gomez Y, Escoté X, Pachón G, Simó R, Selva DM, Malagón MM, Tinahones FJ. Study of the potential association of adipose tissue GLP-1 receptor with obesity and insulin resistance. Endocrinology 2011; 152:4072-9. [PMID: 21862620 DOI: 10.1210/en.2011-1070] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The increase in glucagon-like peptide-1 (GLP-1) activity has emerged as a useful therapeutic tool for the treatment of type 2 diabetes mellitus. The actions of GLP-1 on β-cells and the nervous and digestive systems are well known. The action of this peptide in adipose tissue (AT), however, is still poorly defined. Furthermore, no relationship has been established between GLP-1 receptor (GLP-1R) in AT and obesity and insulin resistance (IR). We provide evidence for the presence of this receptor in AT and show that its mRNA and protein expressions are increased in visceral adipose depots from morbidly obese patients with a high degree of IR. Experiments with the 3T3-L1 cell line showed the lipolytic and lipogenic dose-dependent effect of GLP-1. Moreover, GLP-1 stimulated lipolysis in 3T3-L1 adipocytes in a receptor-dependent manner involving downstream adenylate cyclase/cAMP signaling. Our data also demonstrate that the expression of the GLP-1R in AT correlated positively with the homeostasis model assessment index in obese IR subjects. Furthermore, prospective studies carried out with patients that underwent biliopancreatic diversion surgery showed that subjects with high levels of GLP-1R expression in AT, which indicates a deficit of GLP-1 in this tissue, were those whose insulin sensitivity improved after surgery, suggesting the potential relationship between AT GLP-1R and insulin sensitivity amelioration in obese subjects. Altogether these results indicate that the GLP-1/GLP-1R system in AT represents another potential candidate for improving insulin sensitivity in obese patients.
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Affiliation(s)
- Joan Vendrell
- University Hospital of Tarragona Joan XXIII, IISPV, Rovira i Virgili University, Centro de Investigación Biomédica en Red Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, 43007 Tarragona, Spain
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Vega A, El Bekay R, Chacón P, Ventura I, Monteseirín J. Angiotensin II induces CD62L shedding in human neutrophils. Atherosclerosis 2010; 209:344-51. [DOI: 10.1016/j.atherosclerosis.2009.09.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2008] [Revised: 09/23/2009] [Accepted: 09/24/2009] [Indexed: 11/16/2022]
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Tinahones F, Salas J, Mayas MD, Ruiz-Villalba A, Macias-Gonzalez M, Garrido-Sanchez L, DeMora M, Moreno-Santos I, Bernal R, Cardona F, Bekay RE. VEGF gene expression in adult human thymus fat: a correlative study with hypoxic induced factor and cyclooxygenase-2. PLoS One 2009; 4:e8213. [PMID: 20011601 PMCID: PMC2788242 DOI: 10.1371/journal.pone.0008213] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2009] [Accepted: 10/21/2009] [Indexed: 11/18/2022] Open
Abstract
It is well known that the adult human thymus degenerates into fat tissue; however, it has never been considered as a potential source of angiogenic factors. Recently, we have described that this fat (TAT) produces angiogenic factors and induces human endothelial cell proliferation and migration, indicating its potential angiogenic properties. Design Adult thymus fat and subcutaneous adipose tissue specimens were obtained from 28 patients undergoing cardiac surgery, making this tissue readily available as a prime source of adipose tissue. We focused our investigation on determining VEGF gene expression and characterizing the different genes, mediators of inflammation and adipogenesis, and which are known to play a relevant role in angiogenesis regulation. Results We found that VEGF-A was the isoform most expressed in TAT. This expression was accompanied by an upregulation of HIF-1α, COX-2 and HO-1 proteins, and by increased HIF-1 DNA binding activity, compared to SAT. Furthermore, we observed that TAT contains a high percentage of mature adipocytes, 0.25% of macrophage cells, 15% of endothelial cells and a very low percentage of thymocyte cells, suggesting the cellular variability of TAT, which could explain the differences in gene expression observed in TAT. Subsequently, we showed that the expression of genes known as adipogenic mediators, including PPARγ1/γ2, FABP-4 and adiponectin was similar in both TAT and SAT. Moreover the expression of these latter genes presented a significantly positive correlation with VEGF, suggesting the potential association between VEGF and the generation of adipose tissue in adult thymus. Conclusion Here we suggest that this fat has a potential angiogenic function related to ongoing adipogenesis, which substitutes immune functions within the adult thymus. The expression of VEGF seems to be associated with COX-2, HO-1 and adipogenesis related genes, suggesting the importance that this new fat has acquired in research in relation to adipogenesis and angiogenesis.
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Affiliation(s)
- Francisco Tinahones
- Centro de Investigación Biomédica en Red, Fisiopatología de la Obesidad y Nutrición (CB03/06), Instituto Carlos III, Madrid, Spain
- Servicio de Endocrinología, Hospital Virgen de la Victoria, Málaga, Spain
| | - Julian Salas
- Departamento de Cirugía Cardiovascular, Hospital Carlos Haya, Malaga, Spain
| | - María Dolores Mayas
- Centro de Investigación Biomédica en Red, Fisiopatología de la Obesidad y Nutrición (CB03/06), Instituto Carlos III, Madrid, Spain
| | - Adrian Ruiz-Villalba
- Fundacion Instituto Mediterráneo para el Avance de la Biotecnología y la Investigación Sanitaria, Laboratorio de Investigación Biomédica, Hospital Virgen de la Victoria, Malaga, Spain
| | - Manuel Macias-Gonzalez
- Centro de Investigación Biomédica en Red, Fisiopatología de la Obesidad y Nutrición (CB03/06), Instituto Carlos III, Madrid, Spain
| | - Lourdes Garrido-Sanchez
- Centro de Investigación Biomédica en Red, Fisiopatología de la Obesidad y Nutrición (CB03/06), Instituto Carlos III, Madrid, Spain
| | - Manuel DeMora
- Departamento de Enfermedades Cardiovasculares, Hospital Carlos Haya, Málaga, Spain
| | - Inmaculada Moreno-Santos
- Centro de Investigación Biomédica en Red, Fisiopatología de la Obesidad y Nutrición (CB03/06), Instituto Carlos III, Madrid, Spain
| | - Rosa Bernal
- Centro de Investigación Biomédica en Red, Fisiopatología de la Obesidad y Nutrición (CB03/06), Instituto Carlos III, Madrid, Spain
| | - Fernando Cardona
- Centro de Investigación Biomédica en Red, Fisiopatología de la Obesidad y Nutrición (CB03/06), Instituto Carlos III, Madrid, Spain
| | - Rajaa El Bekay
- Centro de Investigación Biomédica en Red, Fisiopatología de la Obesidad y Nutrición (CB03/06), Instituto Carlos III, Madrid, Spain
- Fundacion Instituto Mediterráneo para el Avance de la Biotecnología y la Investigación Sanitaria, Laboratorio de Investigación Biomédica, Hospital Virgen de la Victoria, Malaga, Spain
- * E-mail:
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Salas J, Montiel M, Jiménez E, Valenzuela M, Valderrama JF, Castillo R, González S, El Bekay R. Angiogenic properties of adult human thymus fat. Cell Tissue Res 2009; 338:313-8. [PMID: 19760288 DOI: 10.1007/s00441-009-0867-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Accepted: 08/23/2009] [Indexed: 01/06/2023]
Abstract
The endogenous proangiogenic properties of adipose tissue are well recognized. Although the adult human thymus has long been known to degenerate into fat tissue, it has never been considered as a potential source of angiogenic factors. We have investigated the expression of diverse angiogenic factors, including vascular endothelial growth factor A and B, angiopoietin 1, and tyrosine-protein kinase receptor-2 (an angiopoietin receptor), and then analyzed their physiological role on endothelial cell migration and proliferation, two relevant events in angiogenesis. The detection of the gene and protein expression of the various proteins has been performed by immunohistochemistry, Western blotting, and quantitative real-time polymerase chain reaction. We show, for the first time, that adult thymus fat produces a variety of angiogenic factors and induces the proliferation and migration of human umbilical cord endothelial cells. Based on these findings, we suggest that this fat has a potential angiogenic function that might affect thymic function and ongoing adipogenesis within the thymus.
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Affiliation(s)
- Julián Salas
- Departamento de Cirugía Cardiovascular, Hospital Regional Universitario Carlos Haya, Avda. Carlos Haya s/n, Málaga, Spain.
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Alba G, El Bekay R, Chacón P, Reyes ME, Ramos E, Oliván J, Jiménez J, López JM, Martín-Nieto J, Pintado E, Sobrino F. Heme oxygenase-1 expression is down-regulated by angiotensin II and under hypertension in human neutrophils. J Leukoc Biol 2008; 84:397-405. [DOI: 10.1189/jlb.0108035] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Vega A, Chacón P, Monteseirín J, El Bekay R, Alba G, Martín-Nieto J, Sobrino F. Expression of the transcription factor NFAT2 in human neutrophils: IgE-dependent, Ca2+- and calcineurin-mediated NFAT2 activation. J Cell Sci 2007; 120:2328-37. [PMID: 17606988 DOI: 10.1242/jcs.000331] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
NFAT (nuclear factors of activated T cells) proteins constitute a family of transcription factors involved in mediating signal transduction. The presence of NFAT isoforms has been described in all cell types of the immune system, with the exception of neutrophils. In the present work we report for the first time the expression in human neutrophils of NFAT2 mRNA and protein. We also report that specific antigens were able to promote NFAT2 protein translocation to the nucleus, an effect that was mimicked by the treatment of neutrophils with anti-immunoglobulin E (anti-IgE) or anti-Fcepsilon-receptor antibodies. Antigens, anti-IgE and anti-FcepsilonRs also increased Ca2+ release and the intracellular activity of calcineurin, which was able to interact physically with NFAT2, in parallel to eliciting an enhanced NFAT2 DNA-binding activity. In addition, specific chemical inhibitors of the NFAT pathway, such as cyclosporin A and VIVIT peptide, abolished antigen and anti-IgE-induced cyclooxygenase-2 (COX2) gene upregulation and prostaglandin (PGE(2)) release, suggesting that this process is through NFAT. Our results provide evidence that NFAT2 is constitutively expressed in human neutrophils, and after IgE-dependent activation operates as a transcription factor in the modulation of genes, such as COX2, during allergic inflammation.
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Affiliation(s)
- Antonio Vega
- Servicio Regional de Inmunología y Alergia, Hospital Universitario Virgen Macarena, Sevilla, Spain
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El Bekay R, Alba G, Reyes ME, Chacón P, Vega A, Martín-Nieto J, Jiménez J, Ramos E, Oliván J, Pintado E, Sobrino F. Rac2 GTPase activation by angiotensin II is modulated by Ca2+/calcineurin and mitogen-activated protein kinases in human neutrophils. J Mol Endocrinol 2007; 39:351-63. [PMID: 17975262 DOI: 10.1677/jme-07-0074] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Angiotensin II (Ang II) highly stimulates superoxide anion production by neutrophils. The G-protein Rac2 modulates the activity of NADPH oxidase in response to various stimuli. Here, we describe that Ang II induced both Rac2 translocation from the cytosol to the plasma membrane and Rac2 GTP-binding activity. Furthermore, Clostridium difficile toxin A, an inhibitor of the Rho-GTPases family Rho, Rac and Cdc42, prevented Ang II-elicited O2-/ROS production, phosphorylation of the mitogen-activated protein kinases (MAPKs) p38, extracellular signal-regulated kinase 1/2 (ERK1/2) and c-Jun N-terminal kinase 1/2, and Rac2 activation. Rac2 GTPase inhibition by C. difficile toxin A was accompanied by a robust reduction of the cytosolic Ca(2)(+) elevation induced by Ang II in human neutrophils. Furthermore, SB203580 and PD098059 act as inhibitors of p38MAPK and ERK1/2 respectively, wortmannin, an inhibitor of phosphatidylinositol-3-kinase, and cyclosporin A, a calcineurin inhibitor, hindered both translocation of Rac2 from the cytosol to the plasma membrane and enhancement of Rac2 GTP-binding elicited by Ang II. These results provide evidence that the activation of Rac2 by Ang II is exerted through multiple signalling pathways, involving Ca(2)(+)/calcineurin and protein kinases, the elucidation of which should be insightful in the design of new therapies aimed at reversing the inflammation of vessel walls found in a number of cardiovascular diseases.
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Affiliation(s)
- Rajaa El Bekay
- Departamento de Bioquímica Médica y Biología Molecular, Facultad de Medicina, Universidad de Sevilla, Avda. Sánchez Pizjuán 4, E-41009 Sevilla, Spain
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Monteseirín J, Vega A, Chacón P, Camacho MJ, El Bekay R, Asturias JA, Martínez A, Guardia P, Pérez-Cano R, Conde J. Neutrophils as a novel source of eosinophil cationic protein in IgE-mediated processes. J Immunol 2007; 179:2634-41. [PMID: 17675527 DOI: 10.4049/jimmunol.179.4.2634] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The production of eosinophil cationic protein (ECP) in IgE-mediated diseases has been associated mainly with eosinophils, although no IgE-dependent ECP release has been observed in these cells. Because there is increasing evidence of neutrophil participation in allergic processes, we have examined whether human neutrophils from allergic patients were able to produce ECP by an IgE-dependent mechanism. After challenge with specific Ags to which the patients were sensitized, ECP release was detected in the culture medium. Furthermore, intracellular protein was detected by flow cytometry, immunofluorescence staining, and Western blotting. Expression at both mRNA and de novo protein synthesis were detected, respectively, by RT-PCR and radiolabeling with (35)S. Ag effect was mimicked by cell treatment with anti-IgE Abs or Abs against FcepsilonRI and galectin-3 (FcepsilonRI>galectin-3), but not against FcepsilonRII. These observations represent a novel view of neutrophils as possible source of ECP in IgE-dependent diseases.
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Affiliation(s)
- Javier Monteseirín
- Servicio Regional de Inmunología y Alergia, Hospital Universitario Virgen Macarena, Sevilla, Spain.
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Chacón P, Vega A, Monteseirín J, El Bekay R, Alba G, Pérez-Formoso J, Msartínez A, Asturias J, Pérez-Cano R, Sobrino F, Conde J. Correction: Induction of cyclooxygenase-2 expression by allergens in lymphocytes from allergic patients conversion via the transcription factor E2A. Eur J Immunol 2006. [DOI: 10.1002/eji.200690035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Vega A, Chacón P, Alba G, El Bekay R, Martín-Nieto J, Sobrino F. Modulation of IgE-dependent COX-2 gene expression by reactive oxygen species in human neutrophils. J Leukoc Biol 2006; 80:152-63. [PMID: 16624933 DOI: 10.1189/jlb.0705411] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Cyclooxygenase (COX) is a key enzyme in prostaglandin (PG) synthesis. Up-regulation of its COX-2 isoform is responsible for the increased PG release, taking place under inflammatory conditions, and also, is thought to be involved in allergic and inflammatory diseases. In the present work, we demonstrate that COX-2 expression becomes highly induced by anti-immunoglobulin E (IgE) antibodies and by antigens in human neutrophils from allergic patients. This induction was detected at mRNA and protein levels and was accompanied by a concomitant PGE(2) and thromboxane A(2) release. We also show evidence that inhibitors of reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase, such as 4-(2-aminoethyl)benzenesulphonyl fluoride and 4-hydroxy-3-methoxyaceto-phenone, completely cancelled anti-IgE-induced COX-2 protein up-regulation, suggesting that this process is mediated by reactive oxygen species (ROS) derived from NADPH oxidase activity. Moreover, the mitogen-activated protein kinases (MAPKs), p38 and extracellular signal-regulated kinase, and also, the transcription factor, nuclear factor (NF)-kappaB, are involved in the up-regulation of COX-2 expression, as specific chemical inhibitors of these two kinases, such as SB203580 and PD098059, and of the NF-kappaB pathway, such as N(alpha)-benzyloxycarbonyl-l-leucyl-l-leucyl-l-leucinal, abolished IgE-dependent COX-2 induction. Evidence is also presented, using Fe(2)(+)/Cu(2)(+) ions, that hydroxyl radicals generated from hydrogen peroxide through Fenton reactions could constitute candidate modulators able to directly trigger anti-IgE-elicited COX-2 expression through MAPK and NF-kappaB pathways. Present results underscore a new role for ROS as second messengers in the modulation of COX-2 expression by human neutrophils in allergic conditions.
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Affiliation(s)
- Antonio Vega
- Departamento de Bioquímica Médica y Biología, Universidad de Sevilla, E-41009 Sevilla, Spain
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de Diego Otero Y, Romero Zerbo Y, El Bekay R, Decara del Olmo J, Sánchez Salido L, Bermúdez Silva F, del Arco Herrera I, Fernández Carvajal I, Rodríguez de Fonseca F. Modelos experimentales utilizados en la investigación de trastornos genéticos que cursan con discapacidad intelectual. Rev Neurol 2006. [DOI: 10.33588/rn.42s01.2005719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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46
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Chacón P, Vega A, Monteseirín J, El Bekay R, Alba G, Pérez-Formoso JL, Msartínez A, Asturias JA, Pérez-Cano R, Sobrino F, Conde J. Induction of cyclooxygenase-2 expression by allergens in lymphocytes from allergic patients. Eur J Immunol 2005; 35:2313-24. [PMID: 15997464 DOI: 10.1002/eji.200425572] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Cyclooxygenase (COX) is a key enzyme in prostaglandin (PG) synthesis. Up-regulation of COX-2 expression is responsible for increased PG release during inflammatory conditions and is thought to be also involved in allergic states. In this study, we demonstrate that in human T, B and natural killer lymphocytes from allergic patients, COX-2 expression became induced upon cell challenge with specific allergens and that this process is presumably IgE dependent and occurs after CD23 receptor ligation. This induction took place at both mRNA and protein levels and was accompanied by PGD2 release. IgE-dependent lymphocyte treatment elicited, in parallel, an activation of the MAPK p38 and extracellular signal-regulated kinase 1/2, an enhancement of calcineurin (CaN) activity, and an increase of the DNA-binding activity of the nuclear factor of activated T cells and of NF-kappaB, with a concomitant decrease in the levels of the cytosolic inhibitor of kappaB, IkappaB. In addition, specific chemical inhibitors of MAPK, such as PD098059 and SB203580, as well as MG-132, an inhibitor of proteasomal activity, abolished allergen-induced COX-2 up-regulation, suggesting that this process is mediated by MAPK and NF-kappaB. However, induction of COX-2 expression was not hampered by the CaN inhibitor cyclosporin A. We also examined the effect of a selective COX-2 inhibitor, NS-398, on cytokine production by human lymphocytes. Treatment with NS-398 severely diminished the IgE-dependently induced production of IL-8 and TNF-alpha. These results underscore the relevant role of lymphocyte COX-2 in allergy and suggest that COX-2 inhibitors may contribute to the improvement of allergic inflammation through the reduction of inflammatory mediator production by human lymphocytes.
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Affiliation(s)
- Pedro Chacón
- Servicio de Inmunología y Alergia, Hospital Universitario Virgen Macarena, Universidad de Sevilla, Sevilla, Spain
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Alba G, El Bekay R, Alvarez-Maqueda M, Chacón P, Vega A, Monteseirín J, Santa María C, Pintado E, Bedoya FJ, Bartrons R, Sobrino F. Stimulators of AMP-activated protein kinase inhibit the respiratory burst in human neutrophils. FEBS Lett 2004; 573:219-25. [PMID: 15328001 DOI: 10.1016/j.febslet.2004.07.077] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2004] [Revised: 06/02/2004] [Accepted: 07/30/2004] [Indexed: 11/23/2022]
Abstract
In the present study, we have examined the potential ability of 5'-AMP-activated protein kinase (AMPK) to modulate NADPH oxidase activity in human neutrophils. AMPK activated with either 5'-aminoimidazole-4-carboxamide ribonucleoside (AICAR) or with 5'-AMP significantly attenuated both phorbol 12-myristate 13-acetate (PMA) and formyl methionyl leucyl phenylalanine-stimulated superoxide anion O2- release by human neutrophils, consistently with a reduced translocation to the cell membrane and phosphorylation of a cytosolic component of NADPH oxidase, namely p47phox. AMPK was found to be present in human neutrophils and to become phosphorylated in response to either AICAR or other stimulators of its enzyme activity. Furthermore, AICAR also strongly reduced PMA-dependent H2O2 release, and induced the phosphorylation of c-jun N-terminal kinase 1 (p46), p38 mitogen-activated protein kinase and extracellular signal-regulated kinase. Present data demonstrate for the first time that the activation of AMPK, in states of low cellular energy charge (such as under high levels of 5'-AMP) or other signals, could be a factor contributing to reduce the host defense mechanisms.
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Affiliation(s)
- Gonzalo Alba
- Departamento de Bioquímica Médica y Biología Molecular, Facultad de Medicina, Universidad de Sevilla, Sevilla, Spain
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Alvarez-Maqueda M, El Bekay R, Monteseirín J, Alba G, Chacón P, Vega A, Santa María C, Tejedo JR, Martín-Nieto J, Bedoya FJ, Pintado E, Sobrino F. Homocysteine enhances superoxide anion release and NADPH oxidase assembly by human neutrophils. Effects on MAPK activation and neutrophil migration. Atherosclerosis 2004; 172:229-38. [PMID: 15019532 DOI: 10.1016/j.atherosclerosis.2003.11.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2003] [Revised: 10/27/2003] [Accepted: 11/07/2003] [Indexed: 11/18/2022]
Abstract
Hyperhomocysteinaemia has recently been recognized as a risk factor of cardiovascular disease. However, the action mechanisms of homocysteine (Hcy) are not well understood. Given that Hcy may be involved in the recruitment of monocytes and neutrophils to the vascular wall, we have investigated the role of Hcy in essential functions of human neutrophils. We show that Hcy increased superoxide anion (O2*-) release by neutrophils to the extracellular medium, and that this effect was inhibited by superoxide dismutase and diphenyleneiodonium (DPI), an inhibitor of NADPH oxidase activity. The enzyme from rat peritoneal macrophages displayed a similar response. These effects were accompanied by a time-dependent increased translocation of p47phox and p67phox subunits of NADPH oxidase to the plasma membrane. We also show that Hcy increased intracellular H2O2 production by neutrophils, that Hcy enhanced the activation and phosphorylation of mitogen-activated protein kinases (MAPKs), specifically p38-MAPK and ERK1/2, and that the migration of neutrophils was increased by Hcy. Present results are the first evidence that Hcy enhances the oxidative stress of neutrophils, and underscore the potential role of phagocytic cells in vascular wall injury through O2*- release in hyperhomocysteinaemia conditions.
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Affiliation(s)
- Moisés Alvarez-Maqueda
- Departamento de Bioquímica Médica y Biología Molecular, Universidad de Sevilla, Avda. Sánchez Pizjuán 4, 41009 Sevilla, Spain
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Monteseirín J, Chacón P, Vega A, El Bekay R, Alvarez M, Alba G, Conde M, Jiménez J, Asturias JA, Martínez A, Conde J, Pintado E, Bedoya FJ, Sobrino F. Human neutrophils synthesize IL-8 in an IgE-mediated activation. J Leukoc Biol 2004; 76:692-700. [PMID: 15178703 DOI: 10.1189/jlb.0903441] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
It has been demonstrated that neutrophils are responsible for the release of large amounts of the inflammatory chemokine interleukin-8 (IL-8), associated with inflammation. To further define the mechanisms implicated, we have analyzed the response of human neutrophils from allergic patients to specific antigens or challenge with anti-immunoglobulin (Ig)E antibodies. Neutrophils showed a dose- and time-dependent production of IL-8. The release of the cytokine was parallel to expression of IL-8 mRNA analyzed by the polymerase chain reaction. This expression was transient-it occurred after 3 h of anti-IgE treatment and was maintained for 18 h. Trifluoperazine, EGTA, reduced nicotinamide adenine dinucleotide phosphate-oxidase inhibitors, and reactive oxygen species (ROS) scavengers inhibited IL-8 production, indicating a critical dependence of calcium and oxidative stress. Moreover, an inhibitory effect of cyclosporin A, an immunosuppressor that inhibits calcineurin activity, on IL-8 release and IL-8 mRNA expression was observed. This is the first evidence of the involvement of ROS and calcium/calcineurin in IgE-dependent IL-8 production. These findings open new perspectives into the functional role of neutrophils in IgE-associated diseases.
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Affiliation(s)
- Javier Monteseirín
- Departamento de Medicina, Servicio de Immunología y alergia, Hospital Universitario Virgen Macarena, Sevilla, Spain
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Alvarez-Maqueda M, El Bekay R, Alba G, Monteseirín J, Chacón P, Vega A, Martín-Nieto J, Bedoya FJ, Pintado E, Sobrino F. 15-Deoxy-Δ12,14-prostaglandin J2 Induces Heme Oxygenase-1 Gene Expression in a Reactive Oxygen Species-dependent Manner in Human Lymphocytes. J Biol Chem 2004; 279:21929-37. [PMID: 15024026 DOI: 10.1074/jbc.m400492200] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
15-Deoxy-delta(12,14)-prostaglandin J(2) (15dPGJ(2) has been recently proposed as a potent anti-inflammatory agent. However, the mechanisms by which 15dPGJ(2) mediates its therapeutic effects in vivo are unclear. We demonstrate that 15dPGJ(2) at micromolar (2.5-10 microm) concentrations induces the expression of heme oxygenase-1 (HO-1), an anti-inflammatory enzyme, at both mRNA and protein levels in human lymphocytes. In contrast, troglitazone and ciglitazone, two thiazolidinediones that mimic several effects of 15dPGJ(2) through their binding to the peroxisome proliferator-activated receptor (PPAR)-gamma, did not affect HO-1 expression, and the positive effect of 15dPGJ(2) on this process was mimicked instead by other cyclopentenone prostaglandins (PG), such as PGD(2) (the precursor of 15dPGJ(2)) and PGA(1) and PGA(2) which do not interact with PPAR-gamma. Also, 15dPGJ(2) enhanced the intracellular production of reactive oxygen species (ROS) and increased xanthine oxidase activity in vitro. Inhibition of intracellular ROS production by N-acetylcysteine, TEMPO, Me(2)SO, 1,10-phenanthroline, or allopurinol resulted in a decreased 15dPGJ(2)-dependent HO-1 expression in the cells. Furthermore, buthionine sulfoximine, an inhibitor of reduced glutathione synthesis, or Fe(2+)/Cu(2+) ions enhanced the positive effect of 15dPGJ(2) on HO-1 expression. On the other hand, the inhibition of phosphatidylinositol 3-kinase or p38 mitogen-activated protein kinase, or the blockade of transcription factor NF-kappaB activation, hindered 15dPGJ(2)-elicited HO-1 expression. Collectively, the present data suggest that 15dPGJ(2) anti-inflammatory actions at pharmacological concentrations involve the induction of HO-1 gene expression through mechanisms independent of PPAR-gamma activation and dependent on ROS produced via the xanthine/xanthine oxidase system and/or through Fenton reactions. Both phosphatidylinositol 3-kinase and p38 mitogen-activated protein kinase signaling pathways also appear implicated in modulation of HO-1 expression by 15dPGJ(2).
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Affiliation(s)
- Moisés Alvarez-Maqueda
- Departamento de Bioquímica Médica y Biología Molecular, Hospital Universitario Virgen Macarena, Universidad de Sevilla, Sevilla, Spain
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