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Sandek A, Gertler C, Valentova M, Jauert N, Wallbach M, Doehner W, von Haehling S, Anker SD, Fielitz J, Volk HD. Increased Expression of Proinflammatory Genes in Peripheral Blood Cells Is Associated with Cardiac Cachexia in Patients with Heart Failure with Reduced Ejection Fraction. J Clin Med 2024; 13:733. [PMID: 38337428 PMCID: PMC10856330 DOI: 10.3390/jcm13030733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/19/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Background: Cardiac cachexia (CC) in chronic heart failure with reduced ejection fraction (HFrEF) is characterized by catabolism and inflammation predicting poor prognosis. Levels of responsible transcription factors like signal transducer and activator of transcription (STAT)1, STAT3, suppressor of cytokine signaling (SOCS)1 and SOCS3 in peripheral blood cells (PBC) are underinvestigated in CC. Expression of mediators was related to patients' functional status, body composition (BC) and metabolic gene expression in skeletal muscle (SM). Methods: Gene expression was quantified by qRT-PCR in three cohorts: non-cachectic patients (ncCHF, n = 19, LVEF 31 ± 7%, BMI 30.2 ± 5.0 kg/m2), cachectic patients (cCHF; n = 18, LVEF 27 ± 7%, BMI 24.3 ± 2.5 kg/m2) and controls (n = 17, LVEF 70 ± 7%, BMI 27.6 ± 4.6 kg/m2). BC was assessed by dual-energy X-ray absorptiometry. Blood inflammatory markers were measured. We quantified solute carrier family 2 member 4 (SLC2A4) and protein degradation by expressions of proteasome 20S subunit beta 2 and calpain-1 catalytic subunit in SM biopsies. Results: TNF and IL-10 expression was higher in cCHF than in ncCHF and controls (all p < 0.004). cCHF had a lower fat mass index (FMI) and lower fat-free mass index (FFMI) compared to ncCHF and controls (p < 0.05). STAT1 and STAT3 expression was higher in cCHF vs. ncCHF or controls (1.1 [1.6] vs. 0.8 [0.9] vs. 0.9 [1.1] RU and 4.6 [5.5] vs. 2.5 [4.8] vs. 3.0 [4.2] RU, all ANOVA-p < 0.05). The same applied for SOCS1 and SOCS3 expression (1.1 [1.5] vs. 0.4 [0.4] vs. 0.4 [0.5] and 0.9 [3.3] vs. 0.4 [1.1] vs. 0.8 [0.9] RU, all ANOVA-p < 0.04). In cCHF, higher TNF and STAT1 expression was associated with lower FMI (r = 0.5, p = 0.053 and p < 0.05) but not with lower FFMI (p > 0.4). In ncCHF, neither cytokine nor STAT/SOCS expression was associated with BC (all p > 0.3). SLC2A4 was upregulated in SM of cCHF vs. ncCHF (p < 0.03). Conclusions: Increased STAT1, STAT3, SOCS1 and SOCS3 expression suggests their involvement in CC. In cCHF, higher TNF and STAT-1 expression in PBC were associated with lower FMI. Increased SLC2A4 in cachectic SM biopsies indicates altered glucose metabolism.
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Affiliation(s)
- Anja Sandek
- Department of Cardiology and Pneumology, University Medical Center Göttingen, 37075 Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, 37075 Göttingen, Germany
| | - Christoph Gertler
- Department of Cardiology and Pneumology, University Medical Center Göttingen, 37075 Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, 37075 Göttingen, Germany
| | - Miroslava Valentova
- Department of Cardiology and Pneumology, University Medical Center Göttingen, 37075 Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, 37075 Göttingen, Germany
| | - Nadja Jauert
- Centre for Stroke Research Berlin, Charité-University Medicine Berlin, Corporate Member of Free University Berlin and Humboldt-University Berlin, 10117 Berlin, Germany
- Division of Physiology, Department of Human Medicine, MSB Medical School Berlin, Rüdesheimerstr 50, 14197 Berlin, Germany
| | - Manuel Wallbach
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, 37075 Göttingen, Germany
- Department of Nephrology and Rheumatology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Wolfram Doehner
- Department of Internal Medicine and Cardiology, Campus Virchow-Klinikum, German Heart Center Charité, Charité-University Medicine Berlin, Corporate Member of Free University Berlin and Humboldt-University Berlin, 13353 Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, 13353 Berlin, Germany
| | - Stephan von Haehling
- Department of Cardiology and Pneumology, University Medical Center Göttingen, 37075 Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, 37075 Göttingen, Germany
| | - Stefan D Anker
- Department of Internal Medicine and Cardiology, Campus Virchow-Klinikum, German Heart Center Charité, Charité-University Medicine Berlin, Corporate Member of Free University Berlin and Humboldt-University Berlin, 13353 Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, 13353 Berlin, Germany
- BIH Center for Regenerative Therapies (BCRT), Charité-University Medicine Berlin, Corporate Member of Free University Berlin and Humboldt-University Berlin, 10117 Berlin, Germany
| | - Jens Fielitz
- Department of Internal Medicine B, Cardiology, University Medicine Greifswald, 17475 Greifswald, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Greifswald, 17475 Greifswald, Germany
| | - Hans-Dieter Volk
- BIH Center for Regenerative Therapies (BCRT), Charité-University Medicine Berlin, Corporate Member of Free University Berlin and Humboldt-University Berlin, 10117 Berlin, Germany
- Department of Medical Immunology, Charité-University Medicine Berlin, Corporate Member of Free University Berlin and Humboldt-University Berlin, 10117 Berlin, Germany
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Yonamine CY, Michalani MLE, Moreira RJ, Machado UF. Glucose Transport and Utilization in the Hippocampus: From Neurophysiology to Diabetes-Related Development of Dementia. Int J Mol Sci 2023; 24:16480. [PMID: 38003671 PMCID: PMC10671460 DOI: 10.3390/ijms242216480] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
The association of diabetes with cognitive dysfunction has at least 60 years of history, which started with the observation that children with type 1 diabetes mellitus (T1D), who had recurrent episodes of hypoglycemia and consequently low glucose supply to the brain, showed a deficit of cognitive capacity. Later, the growing incidence of type 2 diabetes mellitus (T2D) and dementia in aged populations revealed their high association, in which a reduced neuronal glucose supply has also been considered as a key mechanism, despite hyperglycemia. Here, we discuss the role of glucose in neuronal functioning/preservation, and how peripheral blood glucose accesses the neuronal intracellular compartment, including the exquisite glucose flux across the blood-brain barrier (BBB) and the complex network of glucose transporters, in dementia-related areas such as the hippocampus. In addition, insulin resistance-induced abnormalities in the hippocampus of obese/T2D patients, such as inflammatory stress, oxidative stress, and mitochondrial stress, increased generation of advanced glycated end products and BBB dysfunction, as well as their association with dementia/Alzheimer's disease, are addressed. Finally, we discuss how these abnormalities are accompained by the reduction in the expression and translocation of the high capacity insulin-sensitive glucose transporter GLUT4 in hippocampal neurons, which leads to neurocytoglycopenia and eventually to cognitive dysfunction. This knowledge should further encourage investigations into the beneficial effects of promising therapeutic approaches which could improve central insulin sensitivity and GLUT4 expression, to fight diabetes-related cognitive dysfunctions.
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Affiliation(s)
- Caio Yogi Yonamine
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark;
| | - Maria Luiza Estimo Michalani
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil; (M.L.E.M.); (R.J.M.)
| | - Rafael Junges Moreira
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil; (M.L.E.M.); (R.J.M.)
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil; (M.L.E.M.); (R.J.M.)
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Yonamine CY, Passarelli M, Suemoto CK, Pasqualucci CA, Jacob-Filho W, Alves VAF, Marie SKN, Correa-Giannella ML, Britto LR, Machado UF. Postmortem Brains from Subjects with Diabetes Mellitus Display Reduced GLUT4 Expression and Soma Area in Hippocampal Neurons: Potential Involvement of Inflammation. Cells 2023; 12:cells12091250. [PMID: 37174649 PMCID: PMC10177173 DOI: 10.3390/cells12091250] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/13/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
Diabetes mellitus (DM) is an important risk factor for dementia, which is a common neurodegenerative disorder. DM is known to activate inflammation, oxidative stress, and advanced glycation end products (AGEs) generation, all capable of inducing neuronal dysfunctions, thus participating in the neurodegeneration progress. In that process, disturbed neuronal glucose supply plays a key role, which in hippocampal neurons is controlled by the insulin-sensitive glucose transporter type 4 (GLUT4). We investigated the expression of GLUT4, nuclear factor NF-kappa B subunit p65 [NFKB (p65)], carboxymethyllysine and synapsin1 (immunohistochemistry), and soma area in human postmortem hippocampal samples from control, obese, and obese+DM subjects (41 subjects). Moreover, in human SH-SY5Y neurons, tumor necrosis factor (TNF) and glycated albumin (GA) effects were investigated in GLUT4, synapsin-1 (SYN1), tyrosine hydroxylase (TH), synaptophysin (SYP) proteins, and respective genes; NFKB binding activity in the SLC2A4 promoter; effects of increased histone acetylation grade by histone deacetylase 3 (HDAC3) inhibition. Hippocampal neurons (CA4 area) of obese+DM subjects displayed reduced GLUT4 expression and neuronal soma area, associated with increased expression of NFKB (p65). Challenges with TNF and GA decreased the SLC2A4/GLUT4 expression in SH-SY5Y neurons. TNF decreased SYN1, TH, and SYP mRNAs and respective proteins, and increased NFKB binding activity in the SLC2A4 promoter. Inhibition of HDAC3 increased the SLC2A4 expression and the total neuronal content of CRE-binding proteins (CREB/ICER), and also counterbalanced the repressor effect of TNF upon these parameters. This study revealed reduced postmortem human hippocampal GLUT4 content and neuronal soma area accompanied by increased proinflammatory activity in the brains of DM subjects. In isolated human neurons, inflammatory activation by TNF reduced not only the SLC2A4/GLUT4 expression but also the expression of some genes related to neuronal function (SYN1, TH, SYP). These effects may be related to epigenetic regulations (H3Kac and H4Kac status) since they can be counterbalanced by inhibiting HDAC3. These results uncover the improvement in GLUT4 expression and/or the inhibition of HDAC3 as promising therapeutic targets to fight DM-related neurodegeneration.
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Affiliation(s)
- Caio Yogi Yonamine
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Marisa Passarelli
- Laboratório de Lipides (LIM-10) do HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-000, Brazil
- Programa de Pos-Graduação em Medicina, Universidade Nove de Julho (UNINOVE), São Paulo 01525-000, Brazil
| | - Claudia Kimie Suemoto
- Divisao de Geriatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 01246-000, Brazil
| | | | - Wilson Jacob-Filho
- Divisao de Geriatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 01246-000, Brazil
| | - Venâncio Avancini Ferreira Alves
- Laboratório de Investigação Médica em Patologia Hepática, (LIM14) do Hospital das Clínicas (HCFMUSP), Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-000, Brazil
| | | | - Maria Lucia Correa-Giannella
- Laboratorio de Carboidratos e Radioimunoensaio (LIM-18) do Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo 01246-000, Brazil
| | - Luiz Roberto Britto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
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Damaiyanti DW, Tsai ZY, Masbuchin AN, Huang CY, Liu PY. Interplay between fish oil, obesity and cardiometabolic diabetes. J Formos Med Assoc 2023:S0929-6646(23)00098-0. [DOI: 10.1016/j.jfma.2023.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/24/2023] [Accepted: 03/14/2023] [Indexed: 03/31/2023] Open
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Advanced Glycation End Products and Diabetes Mellitus: Mechanisms and Perspectives. Biomolecules 2022; 12:biom12040542. [PMID: 35454131 PMCID: PMC9030615 DOI: 10.3390/biom12040542] [Citation(s) in RCA: 146] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 02/06/2023] Open
Abstract
Persistent hyperglycemic state in type 2 diabetes mellitus leads to the initiation and progression of non-enzymatic glycation reaction with proteins and lipids and nucleic acids. Glycation reaction leads to the generation of a heterogeneous group of chemical moieties known as advanced glycated end products (AGEs), which play a central role in the pathophysiology of diabetic complications. The engagement of AGEs with its chief cellular receptor, RAGE, activates a myriad of signaling pathways such as MAPK/ERK, TGF-β, JNK, and NF-κB, leading to enhanced oxidative stress and inflammation. The downstream consequences of the AGEs/RAGE axis involve compromised insulin signaling, perturbation of metabolic homeostasis, RAGE-induced pancreatic beta cell toxicity, and epigenetic modifications. The AGEs/RAGE signaling instigated modulation of gene transcription is profoundly associated with the progression of type 2 diabetes mellitus and pathogenesis of diabetic complications. In this review, we will summarize the exogenous and endogenous sources of AGEs, their role in metabolic dysfunction, and current understandings of AGEs/RAGE signaling cascade. The focus of this review is to recapitulate the role of the AGEs/RAGE axis in the pathogenesis of type 2 diabetes mellitus and its associated complications. Furthermore, we present an overview of future perspectives to offer new therapeutic interventions to intervene with the AGEs/RAGE signaling pathway and to slow down the progression of diabetes-related complications.
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Passarelli M, Machado UF. AGEs-Induced and Endoplasmic Reticulum Stress/Inflammation-Mediated Regulation of GLUT4 Expression and Atherogenesis in Diabetes Mellitus. Cells 2021; 11:104. [PMID: 35011666 PMCID: PMC8750246 DOI: 10.3390/cells11010104] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 02/08/2023] Open
Abstract
In recent decades, complex and exquisite pathways involved in the endoplasmic reticulum (ER) and inflammatory stress responses have been demonstrated to participate in the development and progression of numerous diseases, among them diabetes mellitus (DM). In those pathways, several players participate in both, reflecting a complicated interplay between ER and inflammatory stress. In DM, ER and inflammatory stress are involved in both the pathogenesis of the loss of glycemic control and the development of degenerative complications. Furthermore, hyperglycemia increases the generation of advanced glycation end products (AGEs), which in turn refeed ER and inflammatory stress, contributing to worsening glycemic homeostasis and to accelerating the development of DM complications. In this review, we present the current knowledge regarding AGEs-induced and ER/inflammation-mediated regulation of the expression of GLUT4 (solute carrier family 2, facilitated glucose transporter member 4), as a marker of glycemic homeostasis and of cardiovascular disease (CVD) development/progression, as a leading cause of morbidity and mortality in DM.
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Affiliation(s)
- Marisa Passarelli
- Laboratório de Lípides (LIM-10), Hospital das Clínicas (HCFMUSP) da Faculdade de Medicina da Universidade de São Paulo, São Paulo 01246-000, Brazil;
- Programa de Pos-Graduação em Medicina, Universidade Nove de Julho, São Paulo 01525-000, Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
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Tsosura TVS, Mattera MSDLC, Chiba FY, Carnevali ACN, Belardi BE, Dos Santos RM, Cintra LTA, Lopes FL, Scaramele NF, Matsushita DH. Effect of maternal apical periodontitis on the final step of insulin signalling and inflammatory pathway in the adult male offspring of rats. Int Endod J 2021; 54:2113-2124. [PMID: 34389996 DOI: 10.1111/iej.13610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/11/2021] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the final step of insulin signalling, inflammatory pathway (related to the inhibition of insulin signalling), peroxisome proliferator-activated receptor-gamma coactivator 1α (PGC-1α) protein content and DNA methylation in the Slc2a4 gene promoter region in the skeletal muscle of adult male offspring of rats with apical periodontitis (AP) in a single tooth or in four teeth. METHODOLOGY Female Wistar rats were distributed into three groups: a control group, a group with one tooth with AP and a group with four teeth with AP. Thirty days after induction of AP, female rats from all groups were mated with healthy male rats. When male offspring reached 75 days of age, the following analyses were performed in the gastrocnemius muscle (GM): insulin-stimulated Akt serine and threonine phosphorylation status; NF-κB p50 and p65 subunits phosphorylation status; GLUT4, TNF-α and PGC-1α protein content by Western blotting; GLUT4 and TNF-α gene expression by real-time polymerase chain reaction (PCR); and DNA methylation in the Slc2a4 gene promoter region by restriction digestion and real-time PCR. Analysis of variance was performed, followed by Tukey's post hoc test. p values <.05 were considered to be statistically significant. RESULTS Maternal AP in four teeth decreased insulin-stimulated Akt serine and threonine phosphorylation status, reduced GLUT4 gene expression and its protein content, and increased NF-κB p50 and p65 subunits phosphorylation status in the GM of adult offspring. There were no alterations in the parameters analysed in the GM of adult offspring of rats with AP in a single tooth. In addition, maternal AP did not affect TNF-α gene expression and its protein content, PGC-1α protein content and DNA methylation in the Slc2a4 gene promoter region in the GM of adult offspring. CONCLUSIONS Maternal AP in four teeth was associated with impairment in the final step of insulin signalling in the GM of adult male offspring in rats. An increase in NF-κB activity may be involved in this decrease in insulin signalling. This study demonstrates the impact of maternal AP on the health of offspring, demonstrating the importance of maintaining adequate maternal oral health to prevent diseases in adult offspring in rats.
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Affiliation(s)
- Thaís Verônica Saori Tsosura
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil.,Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas (PPGMCF)/Sociedade Brasileira de Fisiologia (SBFis), School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | | | - Fernando Yamamoto Chiba
- Department of Preventive and Restorative Dental, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | | | - Bianca Elvira Belardi
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil.,Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas (PPGMCF)/Sociedade Brasileira de Fisiologia (SBFis), School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Rodrigo Martins Dos Santos
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil.,Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas (PPGMCF)/Sociedade Brasileira de Fisiologia (SBFis), School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Luciano Tavares Angelo Cintra
- Department of Preventive and Restorative Dental, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Flávia Lombardi Lopes
- Department of Production and Animal Health, School of Veterinary Medicine, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Natália Francisco Scaramele
- Department of Production and Animal Health, School of Veterinary Medicine, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Doris Hissako Matsushita
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil.,Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas (PPGMCF)/Sociedade Brasileira de Fisiologia (SBFis), School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
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Estrogen and Glycemic Homeostasis: The Fundamental Role of Nuclear Estrogen Receptors ESR1/ESR2 in Glucose Transporter GLUT4 Regulation. Cells 2021; 10:cells10010099. [PMID: 33430527 PMCID: PMC7827878 DOI: 10.3390/cells10010099] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/03/2021] [Accepted: 01/04/2021] [Indexed: 02/07/2023] Open
Abstract
Impaired circulating estrogen levels have been related to impaired glycemic homeostasis and diabetes mellitus (DM), both in females and males. However, for the last twenty years, the relationship between estrogen, glycemic homeostasis and the mechanisms involved has remained unclear. The characterization of estrogen receptors 1 and 2 (ESR1 and ESR2) and of insulin-sensitive glucose transporter type 4 (GLUT4) finally offered a great opportunity to shed some light on estrogen regulation of glycemic homeostasis. In this manuscript, we review the relationship between estrogen and DM, focusing on glycemic homeostasis, estrogen, ESR1/ESR2 and GLUT4. We review glycemic homeostasis and GLUT4 expression (muscle and adipose tissues) in Esr1−/− and Esr2−/− transgenic mice. We specifically address estradiol-induced and ESR1/ESR2-mediated regulation of the solute carrier family 2 member 4 (Slc2a4) gene, examining ESR1/ESR2-mediated genomic mechanisms that regulate Slc2a4 transcription, especially those occurring in cooperation with other transcription factors. In addition, we address the estradiol-induced translocation of ESR1 and GLUT4 to the plasma membrane. Studies make it clear that ESR1-mediated effects are beneficial, whereas ESR2-mediated effects are detrimental to glycemic homeostasis. Thus, imbalance of the ESR1/ESR2 ratio may have important consequences in metabolism, highlighting that ESR2 hyperactivity assumes a diabetogenic role.
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Triptolide dysregulates glucose uptake via inhibition of IKKβ-NF-κB pathway by p53 activation in cardiomyocytes. Toxicol Lett 2020; 318:1-11. [DOI: 10.1016/j.toxlet.2019.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 08/05/2019] [Accepted: 10/08/2019] [Indexed: 02/08/2023]
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10
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Fatima LA, Campello RS, Barreto-Andrade JN, Passarelli M, Santos RS, Clegg DJ, Machado UF. Estradiol stimulates adipogenesis and Slc2a4/GLUT4 expression via ESR1-mediated activation of CEBPA. Mol Cell Endocrinol 2019; 498:110447. [PMID: 31100494 DOI: 10.1016/j.mce.2019.05.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/10/2019] [Accepted: 05/10/2019] [Indexed: 02/07/2023]
Abstract
The ability of adipose tissue to expand is dependent on adipocyte differentiation and adipose tissue glucose disposal. The CCAAT/enhancer-binding protein alpha (CEBPA) enhances the expression of the Slc2a4 gene and GLUT4 protein, which are markers of adipocyte differentiation/glucose disposal. We hypothesized estradiol (E2) facilitates adipocyte differentiation/glucose disposal by an estrogen receptor 1 (ESR1)-dependent and CEBPA-mediated mechanism. Our results suggest that E2 (10 nM) has a positive effect on 3T3-L1 adipocyte differentiation (days 2-8), lipid accumulation, Slc2a4 and Cebpa mRNA expression, total GLUT4 and nuclear CEBPA contents, and CEBP/Slc2a4-binding activity. Esr1 silencing (∼50%) in mature adipocytes abrogates the 24-h E2 effects on nuclear CEBPA content, Slc2a4/GLUT4 expression and GLUT4 translocation to the cell membrane. Thus, E2 stimulates adipocyte differentiation and Slc2a4/GLUT4 expression in an ESR1/CEBPA-mediated pathway. Our data provide mechanistic insight demonstrating E2 participates in adipose-tissue differentiation and glucose transporter expression which ultimately can improve adipose tissue expandability and glycemic control.
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Affiliation(s)
- Luciana A Fatima
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Raquel S Campello
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - João N Barreto-Andrade
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marisa Passarelli
- Lipids Laboratory (LIM 10), Medical School, University of São Paulo, São Paulo, Brazil; Graduate Studies Program in Medicine, University Nove Nove de Julho, São Paulo, Brazil
| | - Roberta S Santos
- Biomedical Research Department, Diabetes and Obesity Research Division, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Deborah J Clegg
- Biomedical Research Department, Diabetes and Obesity Research Division, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Ubiratan F Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
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Al-Huseini I, Harada M, Nishi K, Nguyen-Tien D, Kimura T, Ashida N. Improvement of insulin signalling rescues inflammatory cardiac dysfunction. Sci Rep 2019; 9:14801. [PMID: 31616027 PMCID: PMC6794250 DOI: 10.1038/s41598-019-51304-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 09/27/2019] [Indexed: 12/26/2022] Open
Abstract
Inflammation resulting from virus infection is the cause of myocarditis; however, the precise mechanism by which inflammation induces cardiac dysfunction is still unclear. In this study, we investigated the contribution of insulin signalling to inflammatory cardiac dysfunction induced by the activation of signalling by NF-κB, a major transcriptional factor regulating inflammation. We generated mice constitutively overexpressing kinase-active IKK-β, an essential kinase for NF-κB activation, in cardiomyocytes (KA mice). KA mice demonstrated poor survival and significant cardiac dysfunction with remarkable dilation. Histologically, KA hearts revealed increased cardiac apoptosis and fibrosis and the enhanced recruitment of immune cells. By molecular analysis, we observed the increased phosphorylation of IRS-1, indicating the suppression of insulin signalling in KA hearts. To evaluate the contribution of insulin signalling to cardiac dysfunction in KA hearts, we generated mice with cardiac-specific suppression of phosphatase and tensin homologue 10 (PTEN), a negative regulator of insulin signalling, in the KA mouse background (KA-PTEN). The suppression of PTEN successfully improved insulin signalling in KA-PTEN hearts, and interestingly, KA-PTEN mice showed significantly improved cardiac function and survival. These results indicated that impaired insulin signalling underlies the mechanism involved in inflammation-induced cardiac dysfunction, which suggests that it may be a target for the treatment of myocarditis.
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Affiliation(s)
- Isehaq Al-Huseini
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Physiology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Masayuki Harada
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kiyoto Nishi
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Mitochondria and Metabolism Center, Department of Anaesthesiology and Pain Medicine, University of Washington, Seattle, WA98109, USA
| | - Dat Nguyen-Tien
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Molecular Immunology and Inflammation, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Noboru Ashida
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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12
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Davis HM, Essex AL, Valdez S, Deosthale PJ, Aref MW, Allen MR, Bonetto A, Plotkin LI. Short-term pharmacologic RAGE inhibition differentially affects bone and skeletal muscle in middle-aged mice. Bone 2019; 124:89-102. [PMID: 31028960 PMCID: PMC6543548 DOI: 10.1016/j.bone.2019.04.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/17/2019] [Accepted: 04/22/2019] [Indexed: 12/27/2022]
Abstract
Loss of bone and muscle mass are two major clinical complications among the growing list of chronic diseases that primarily affect elderly individuals. Persistent low-grade inflammation, one of the major drivers of aging, is also associated with both bone and muscle dysfunction in aging. Particularly, chronic activation of the receptor for advanced glycation end products (RAGE) and elevated levels of its ligands high mobility group box 1 (HMGB1), AGEs, S100 proteins and Aβ fibrils have been linked to bone and muscle loss in various pathologies. Further, genetic or pharmacologic RAGE inhibition has been shown to preserve both bone and muscle mass. However, whether short-term pharmacologic RAGE inhibition can prevent early bone and muscle loss in aging is unknown. To address this question, we treated young (4-mo) and middle-aged (15-mo) C57BL/6 female mice with vehicle or Azeliragon, a small-molecule RAGE inhibitor initially developed to treat Alzheimer's disease. Azeliragon did not prevent the aging-induced alterations in bone geometry or mechanics, likely due to its differential effects [direct vs. indirect] on bone cell viability/function. On the other hand, Azeliragon attenuated the aging-related body composition changes [fat and lean mass] and reversed the skeletal muscle alterations induced with aging. Interestingly, while Azeliragon induced similar metabolic changes in bone and skeletal muscle, aging differentially altered the expression of genes associated with glucose uptake/metabolism in these two tissues, highlighting a potential explanation for the differential effects of Azeliragon on bone and skeletal muscle in middle-aged mice. Overall, our findings suggest that while short-term pharmacologic RAGE inhibition did not protect against early aging-induced bone alterations, it prevented against the early effects of aging in skeletal muscle.
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Affiliation(s)
- Hannah M Davis
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America.
| | - Alyson L Essex
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America.
| | - Sinai Valdez
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America.
| | - Padmini J Deosthale
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America.
| | - Mohammad W Aref
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America.
| | - Matthew R Allen
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America; Roudebush Veterans Administration Medical Center, Indianapolis, IN, United States of America.
| | - Andrea Bonetto
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America; Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, United States of America.
| | - Lilian I Plotkin
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America; Roudebush Veterans Administration Medical Center, Indianapolis, IN, United States of America.
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13
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Mattera MSDLC, Chiba FY, Lopes FL, Tsosura TVS, Peres MA, Brito VGB, Oliveira SHP, Pereira RF, Marani F, dos Santos RM, Belardi BE, Tessarin GWL, Benites ML, Ervolino E, Heimann JC, Sumida DH. Effect of maternal periodontitis on GLUT4 and inflammatory pathway in adult offspring. J Periodontol 2019; 90:884-893. [DOI: 10.1002/jper.18-0568] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 01/02/2019] [Accepted: 01/08/2019] [Indexed: 01/04/2023]
Affiliation(s)
- Maria Sara de Lima Coutinho Mattera
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | - Fernando Yamamoto Chiba
- Department of Child and Social DentistrySchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | | | - Thaís Verônica Saori Tsosura
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | - Maria Angelica Peres
- Department of Internal MedicineLaboratory of Experimental Hypertension, School of Medicine, University of São Paulo São Paulo Brazil
| | - Victor Gustavo Balera Brito
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | - Sandra Helena Penha Oliveira
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | - Renato Felipe Pereira
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | - Fernando Marani
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | - Rodrigo Martins dos Santos
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | - Bianca Elvira Belardi
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | - Gestter Willian Lattari Tessarin
- Institute of BiosciencesSão Paulo State University (UNESP) Botucatu Brazil
- Department of Basic SciencesDivision of HistologyDental School of AracatubaUNESP‐Univ Estadual Paulista Araçatuba Brazil
| | - Mariana Lopes Benites
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
| | - Edilson Ervolino
- Institute of BiosciencesSão Paulo State University (UNESP) Botucatu Brazil
- Department of Basic SciencesDivision of HistologyDental School of AracatubaUNESP‐Univ Estadual Paulista Araçatuba Brazil
| | - Joel Claudio Heimann
- Department of Internal MedicineLaboratory of Experimental Hypertension, School of Medicine, University of São Paulo São Paulo Brazil
| | - Doris Hissako Sumida
- Multicenter Post‐Graduate Program in Physiological Sciences (SBFis)Department of Basic SciencesSchool of DentistrySão Paulo State University (UNESP) Araçatuba Brazil
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14
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Guedes JAC, Esteves JV, Morais MR, Zorn TM, Furuya DT. Osteocalcin improves insulin resistance and inflammation in obese mice: Participation of white adipose tissue and bone. Bone 2018; 115:68-82. [PMID: 29183784 DOI: 10.1016/j.bone.2017.11.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/21/2017] [Accepted: 11/23/2017] [Indexed: 12/15/2022]
Abstract
AIMS/HYPOTHESIS The discovery of osteocalcin, a protein synthetized by osteoblasts, as a hormone that has positive effects on insulin resistance, contributed to support the concept of bone as an endocrine organ. However, very little is known about the molecular pathways involved in osteocalcin improved-insulin resistance. The present study aimed to investigate the mechanisms of action of osteocalcin on insulin resistance and inflammation in obese mice and 3T3-L1 adipocytes. METHODS AND RESULTS Lean control, saline-treated obese and uncarboxylated osteocalcin (uOC)-treated obese mice were subjected to insulin tolerance test in vivo. Blood was collect for biochemical/metabolic profile analysis; and, skeletal muscle, white adipose tissue (WAT) and bone were collected for protein (Western blotting) and mRNA (RT-qPCR) analysis. uOC effects on insulin resistance and inflammation were also investigated in 3T3-L1 adipocytes challenged with tumor necrosis factor. Osteocalcin treatment improved in vivo insulin resistance in obese mice. In WAT, osteocalcin had positive effects such as (1) WAT weight reduction; (2) upregulation of glucose transporter (GLUT) 4 protein and its mRNA (Slc2a4); (3) improved insulin-induced AKT phosphorylation; (4) downregulation of several genes involved in inflammation and inflammassome transcriptional machinery, and (5) reduction of the density of macrophage in crown-like structures (histomorphometrical analysis). Notably, in 3T3-L1 adipocytes, osteocalcin restored Slc2a4/GLUT4 content and reduced the expression of inflammatory genes after TNF-a challenge; moreover, osteocalcin treatment increased AKT phosphorylation induced by insulin. Finally, it was observed that in bone, osteocalcin improves insulin resistance by increasing insulin-induced AKT phosphorylation and reducing the expression of genes involved in bone insulin resistance, resulting in increased secretion of uncarboxylated osteocalcin in circulation. CONCLUSION We provided some mechanisms of action for osteocalcin in the amelioration of insulin resistance in obesity: in WAT, osteocalcin improves insulin resistance by decreasing inflammation, and increasing insulin signaling and the expression of Slc2a4/GLUT4; and, in bone, osteocalcin increases the secretion of uncarboxylated osteocalcin by improving insulin resistance.
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Affiliation(s)
- J A C Guedes
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - J V Esteves
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - M R Morais
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - T M Zorn
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - D T Furuya
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
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15
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Advanced glycation end products-induced insulin resistance involves repression of skeletal muscle GLUT4 expression. Sci Rep 2018; 8:8109. [PMID: 29802324 PMCID: PMC5970140 DOI: 10.1038/s41598-018-26482-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 05/14/2018] [Indexed: 11/08/2022] Open
Abstract
Little is known about advanced glycation end products (AGEs) participation in glucose homeostasis, a process in which skeletal muscle glucose transporter GLUT4 (Scl2a4 gene) plays a key role. This study investigated (1) the in vivo and in vitro effects of AGEs on Slc2a4/GLUT4 expression in skeletal muscle of healthy rats, and (2) the potential involvement of endoplasmic reticulum and inflammatory stress in the observed regulations. For in vivo analysis, rats were treated with advanced glycated rat albumin (AGE-albumin) for 12 weeks; for in vitro analysis, soleus muscles from normal rats were incubated with bovine AGE-albumin for 2.5 to 7.5 hours. In vivo, AGE-albumin induced whole-body insulin resistance; decreased (~30%) Slc2a4 mRNA and GLUT4 protein content; and increased (~30%) the nuclear content of nuclear factor NF-kappa-B p50 subunit (NFKB1), and cellular content of 78 kDa glucose-regulated protein (GRP78). In vitro, incubation with AGE-albumin decreased (~50%) the Slc2a4/GLUT4 content; and increased cellular content of GRP78/94, phosphorylated-IKK-alpha/beta, nuclear content of NFKB1 and RELA, and the nuclear protein binding into Slc2a4 promoter NFKB-binding site. The data reveal that AGEs impair glucose homeostasis in non-diabetic states of increased AGEs concentration; an effect that involves activation of endoplasmic reticulum- and inflammatory-stress and repression of Slc2a4/GLUT4 expression.
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16
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Ebersbach-Silva P, Poletto AC, David-Silva A, Seraphim PM, Anhê GF, Passarelli M, Furuya DT, Machado UF. Palmitate-induced Slc2a4/GLUT4 downregulation in L6 muscle cells: evidence of inflammatory and endoplasmic reticulum stress involvement. Lipids Health Dis 2018; 17:64. [PMID: 29609616 PMCID: PMC5879605 DOI: 10.1186/s12944-018-0714-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 03/21/2018] [Indexed: 12/22/2022] Open
Abstract
Background Obesity is strongly associated to insulin resistance, inflammation, and elevated plasma free fatty acids, but the mechanisms behind this association are not fully comprehended. Evidences suggest that endoplasmic reticulum (ER) stress may play a role in this complex pathophysiology. The aim of the present study was to investigate the involvement of inflammation and ER stress in the modulation of glucose transporter GLUT4, encoded by Slc2a4 gene, in L6 skeletal muscle cells. Methods L6 cells were acutely (2 h) and chronically (6 and 12 h) exposed to palmitate, and the expression of several proteins involved in insulin resistance, ER stress and inflammation were analyzed. Results Chronic and acute palmitate exposure significantly reduced GLUT4 protein (~ 39%, P < 0.01) and its mRNA (18%, P < 0.01) expression. Only acute palmitate treatment increased GRP78 (28%, P < 0.05), PERK (98%, P < 0.01), eIF-2A (35%, P < 0.01), IRE1a (60%, P < 0.05) and TRAF2 (23%, P < 0.05) protein content, and PERK phosphorylation (106%, P < 0.001), but did not elicit eIF-2A, IKK phosphorylation or increased XBP1 nuclear content. Additionally, acute and chronic palmitate increased NFKB p65 nuclear content (~ 30%, P < 0.05) and NFKB binding activity to Slc2a4 gene promoter (~ 45%, P < 0.05). Conclusion Different pathways are activated in acute and chronic palmitate induced-repression of Slc2a4/GLUT4 expression. This regulation involves activation of initial component of ER stress, such as the formation of a IRE1a-TRAF2-IKK complex, and converges to NFKB-induced repression of Slc2a4/GLUT4. These results link ER stress, inflammation and insulin resistance in L6 cells.
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Affiliation(s)
- Patrícia Ebersbach-Silva
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo, 05508-900, Brazil
| | - Ana Cláudia Poletto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo, 05508-900, Brazil
| | - Aline David-Silva
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo, 05508-900, Brazil
| | - Patrícia Monteiro Seraphim
- Department of Physical Therapy, School of Science and Technology, Universidade Estadual Paulista, São Paulo, Brazil
| | - Gabriel Forato Anhê
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, Brazil
| | - Marisa Passarelli
- Laboratório de Lípides (LIM-10), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Daniela Tomie Furuya
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo, 05508-900, Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo, 05508-900, Brazil.
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17
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Xiang Z, Li W, Wang L, Yi J, Chen K, Hong M. Identification of a NF κB Inhibition Site on the Proximal Promoter Region of Human Organic Anion Transporting Polypeptide 1A2 Coding Gene SLCO1A2. Drug Metab Dispos 2018; 46:643-651. [PMID: 29549185 DOI: 10.1124/dmd.117.078832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 03/12/2018] [Indexed: 01/21/2023] Open
Abstract
Organic anion transporting polypeptides (OATPs; gene symbol SLCO) are membrane transporters that mediate the transport of wide ranges of compounds. The expression of different OATP members has been reported in the kidney, liver, placenta, brain, and intestine. Because of their broad substrate spectra and wide distribution within the human body, these transporters have been proposed to play key roles in the influx transport of many oral drugs. Inflammation is known to regulate the expression and functions of many drug-metabolizing enzymes and drug transporters. As a proinflammatory cytokine, tumor necrosis factor-α (TNFα) has been shown to affect the expression of different drug transporters, including OATP family members. In the present study, a putative nuclear factor-κB (NFκB) binding site ranging from -1845 to -1836 was identified at the proximal promoter region of OATP1A2 coding gene SLCO1A2 Electrophoretic mobility shift assays and chromatin immunoprecipitation showed that nuclear extracts from both breast cancer cell MCF7 and liver cancer cell HepG2 interacted with an oligonucleotide probe containing the putative NFκB binding site and that the DNA-protein complexes contained both p65 and p50 subunits of NFκB. Further study revealed that the binding site may be responsible in part for the suppression effect of TNFα toward SLCO1A2 expression because the treatment of TNFα significantly increased. Treatment of TNFα significantly increased formation of the DNA-protein complexes and mutations at essential bases of the putative NFκB binding site abolished responsiveness to the TNFα neutralizing antibody, suggesting that the binding site may be responsible in part for the suppression effect of TNFα towars SLCO1A2 expression.
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Affiliation(s)
- Zhaojian Xiang
- College of Life Sciences (Z.X., W.L., L.W., J.Y., K.C., M.H.) and Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms (M.H.), South China Agricultural University, Guangzhou, People's Republic of China
| | - Weike Li
- College of Life Sciences (Z.X., W.L., L.W., J.Y., K.C., M.H.) and Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms (M.H.), South China Agricultural University, Guangzhou, People's Republic of China
| | - Lixue Wang
- College of Life Sciences (Z.X., W.L., L.W., J.Y., K.C., M.H.) and Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms (M.H.), South China Agricultural University, Guangzhou, People's Republic of China
| | - Jicai Yi
- College of Life Sciences (Z.X., W.L., L.W., J.Y., K.C., M.H.) and Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms (M.H.), South China Agricultural University, Guangzhou, People's Republic of China
| | - Kaiwen Chen
- College of Life Sciences (Z.X., W.L., L.W., J.Y., K.C., M.H.) and Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms (M.H.), South China Agricultural University, Guangzhou, People's Republic of China
| | - Mei Hong
- College of Life Sciences (Z.X., W.L., L.W., J.Y., K.C., M.H.) and Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms (M.H.), South China Agricultural University, Guangzhou, People's Republic of China
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18
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Esteves JV, Yonamine CY, Pinto-Junior DC, Gerlinger-Romero F, Enguita FJ, Machado UF. Diabetes Modulates MicroRNAs 29b-3p, 29c-3p, 199a-5p and 532-3p Expression in Muscle: Possible Role in GLUT4 and HK2 Repression. Front Endocrinol (Lausanne) 2018; 9:536. [PMID: 30258406 PMCID: PMC6143689 DOI: 10.3389/fendo.2018.00536] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/23/2018] [Indexed: 12/16/2022] Open
Abstract
The reduced expression of solute carrier family 2, facilitated glucose transporter member 4 (GLUT4) and hexokinase-2 (HK2) in skeletal muscle participates in insulin resistance of diabetes mellitus (DM). MicroRNAs (miRNAs) have emerged as important modulators of mRNA/protein expression, but their role in DM is unclear. We investigated miRNAs hypothetically involved in GLUT4/HK2 expression in soleus muscle of type 1 diabetes-like rats. In silico analysis revealed 651 miRNAs predicted to regulate solute carrier family 2 member 4 (Slc2a4) mRNA, several of them also predicted to regulate Hk2 mRNA, and 16 miRNAs were selected for quantification. Diabetes reduced Slc2a4/GLUT4 and Hk2/HK2 expression (50-77%), upregulated miR-29b-3p and miR-29c-3p (50-100%), and downregulated miR-93-5p, miR-150-5p, miR-199a-5p, miR-345-3p, and miR-532-3p (~30%) expression. Besides, GLUT4 and HK2 proteins correlated (P < 0.05) negatively with miR-29b-3p and miR-29c-3p and positively with miR-199a-5p and miR-532-3p, suggesting that these miRNAs could be markers of alterations in GLUT4 and HK2 expression. Additionally, diabetes increased the nuclear factor kappa B subunit 1 protein (p50) expression, a repressor of Slc2a4, which was also predicted as a target for miR-199a-5p and miR-532-3p. Correlations were also detected between these miRNAs and blood glucose, 24-h glycosuria and plasma fructosamine, and insulin therapy reversed most of the alterations. In sum, we report that diabetes altered miR-29b-3p, miR-29c-3p, miR-199a-5p and miR-532-3p expression in muscle of male rats, where their predicted targets Slc2a4/GLUT4 and Hk2/HK2 are repressed. These data shed light on these miRNAs as a markers of impaired skeletal muscle glucose disposal, and, consequently, glycemic control in diabetes.
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Affiliation(s)
- João V. Esteves
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- *Correspondence: João V. Esteves
| | - Caio Y. Yonamine
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Danilo C. Pinto-Junior
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Frederico Gerlinger-Romero
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Francisco J. Enguita
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Ubiratan F. Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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19
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Hyun H, Lee SE, Son YJ, Shin MY, Park YG, Kim EY, Park SP. Cell Synchronization by Rapamycin Improves the Developmental Competence of Porcine SCNT Embryos. Cell Reprogram 2017; 18:195-205. [PMID: 27253629 DOI: 10.1089/cell.2015.0090] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The cell cycle stage of donor cells influences the success of somatic cell nuclear transfer (SCNT). This study investigated the effects of rapamycin treatment on synchronization of porcine fibroblasts in comparison with control and serum-starved cells, SCNT donor cell viability, and SCNT-derived embryo development. Porcine fibroblasts were treated with 0.1, 1, 10, and 100 μM rapamycin for 1 or 3 days. The proportion of cells in G0/G1 phase was significantly higher among cells treated with 1 μM rapamycin for 3 days (D3-1R) than among control and serum-starved cells (p < 0.05). In comparison with control cells, rapamycin-treated cells exhibited reduced proliferation, similar to serum-starved cells. The viability (as assessed by the MTT assay) of D3-1R-treated cells was good, similar to control cells, showing their quality was maintained. To confirm nutrient regulation by rapamycin treatment, we checked the transcript levels of nutrient transporter genes (SLC2A2, SLC2A4, SLC6A14, and SLC7A1). These levels were significantly lower in D3-1R-treated cells than in control cells (p < 0.01). We performed SCNT with D3-1R-treated cells (SCNT(D3-1R)) to confirm the effect of cell cycle synchronization by rapamycin treatment. Although SCNT(D3-1R) embryos did not have an increased fusion rate, their cleavage and blastocyst formation rates were significantly higher than those of control embryos (p < 0.05). Regarding embryo quality, the numbers of total and apoptotic cells per blastocyst were increased and decreased, respectively, in SCNT(D3-1R) blastocysts. The mRNA levels of developmental (CDX2 and CDH1) and proapoptotic (FAS and CASP3) genes were significantly higher and lower, respectively, in SCNT(D3-1R) blastocysts than in control blastocysts (p < 0.05). These results demonstrate that rapamycin treatment affects the cell cycle synchronization of donor cells and enhances the developmental potential of porcine SCNT embryos.
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Affiliation(s)
- Hyuk Hyun
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Seung-Eun Lee
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Yeo-Jin Son
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Min-Young Shin
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Yun-Gwi Park
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Eun-Young Kim
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,3 Mirae Cell Bio , Gwangjin-gu, Seoul, Korea
| | - Se-Pill Park
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,3 Mirae Cell Bio , Gwangjin-gu, Seoul, Korea
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20
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Campello RS, Fátima LA, Barreto-Andrade JN, Lucas TF, Mori RC, Porto CS, Machado UF. Estradiol-induced regulation of GLUT4 in 3T3-L1 cells: involvement of ESR1 and AKT activation. J Mol Endocrinol 2017; 59:257-268. [PMID: 28729437 DOI: 10.1530/jme-17-0041] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/20/2017] [Indexed: 12/11/2022]
Abstract
Impaired insulin-stimulated glucose uptake involves reduced expression of the GLUT4 (solute carrier family 2 facilitated glucose transporter member 4, SLC2A4 gene). 17β-estradiol (E2) modulates SLC2A4/GLUT4 expression, but the involved mechanisms are unclear. Although E2 exerts biological effects by binding to estrogen receptors 1/2 (ESR1/2), which are nuclear transcriptional factors; extranuclear effects have also been proposed. We hypothesize that E2 regulates GLUT4 through an extranuclear ESR1 mechanism. Thus, we investigated the effects of E2 upon (1) subcellular distribution of ESRs and the proto-oncogene tyrosine-protein kinases (SRC) involvement; (2) serine/threonine-protein kinase (AKT) activation; (3) Slc2a4/GLUT4 expression and (4) GLUT4 subcellular distribution and glucose uptake in 3T3-L1 adipocytes. Differentiated 3T3-L1 adipocytes were cultivated or not with E2 for 24 h, and additionally treated or not with ESR1-selective agonist (PPT), ESR1-selective antagonist (MPP) or selective SRC inhibitor (PP2). Subcellular distribution of ESR1, ESR2 and GLUT4 was analyzed by immunocytochemistry; Slc2a4 mRNA and GLUT4 were quantified by qPCR and Western blotting, respectively; plasma membrane GLUT4 translocation and glucose uptake were analyzed under insulin stimulus for 20 min or not. E2 induced (1) translocation of ESR1, but not of ESR2, from nucleus to plasma membrane and AKT phosphorylation, effects mimicked by PPT and blocked by MPP and PP2; (2) increased Slc2a4/GLUT4 expression and (3) increased insulin-stimulated GLUT4 translocation and glucose uptake. In conclusion, E2 treatment promoted a SRC-mediated nucleus-plasma membrane shuttle of ESR1, and increased AKT phosphorylation, Slc2a4/GLUT4 expression and plasma membrane GLUT4 translocation; consequently, improving insulin-stimulated glucose uptake. These results unravel mechanisms through which estrogen improves insulin sensitivity.
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Affiliation(s)
- Raquel S Campello
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Luciana A Fátima
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - João Nilton Barreto-Andrade
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Thais F Lucas
- Section of Experimental EndocrinologyDepartment of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Rosana C Mori
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Catarina S Porto
- Section of Experimental EndocrinologyDepartment of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ubiratan F Machado
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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21
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Sousa LMMDC, Silva RDS, Fonseca VUD, Leandro RM, Di Vincenzo TS, Alves-Wagner AB, Machado UF, Papa PDC. Is the canine corpus luteum an insulin-sensitive tissue? J Endocrinol 2016; 231:223-233. [PMID: 27679426 DOI: 10.1530/joe-16-0173] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 09/27/2016] [Indexed: 01/08/2023]
Abstract
This study aimed to determine in the canine corpus luteum throughout the dioestrus (1) the influence of insulin on glucose uptake; (2) the regulation of genes potentially involved; and (3) the influence of hypoxia on glucose transporter expression and steroidogenesis, after treatment with cobalt chloride (CoCl2). Glucose uptake by luteal cells increased 2.7 folds (P < 0.05) in response to insulin; a phenomenon related to increased expression of glucose transporter (GLUT) 4 and phosphorylation of protein kinase B (AKT). The gene expression of insulin receptor and SLC2A4 (codifier of GLUT4) genes after insulin stimulation increased on day 20 post ovulation (p.o.) and declined on day 40 p.o. (P < 0.05). Regarding potentially involved molecular mechanisms, the nuclear factor kappa B gene RELA was upregulated on days 30/40 p.o., when SLC2A4 mRNA was low, and the interleukin 6 (IL6) gene was upregulated in the first half of dioestrus, when SLC2A4 mRNA was high. CoCl2 in luteal cell cultures increased the hypoxia-inducible factor HIF1A/HIF1A and the SLC2A4/GLUT4 expression, and decreased progesterone (P4) production and hydroxyl-delta-5-steroid dehydrogenase 3 beta (HSD3B) mRNA expression (P < 0.05). This study shows that the canine luteal cells are responsive to insulin, which stimulates glucose uptake in AKT/GLUT4-mediated pathway; that may be related to local activity of RELA and IL6. Besides, the study reveals that luteal cells under hypoxia activate HIF1A-modulating luteal function and insulin-stimulated glucose uptake. These data indicate that insulin regulates luteal cells' glucose disposal, participating in the maintenance and functionality of the corpus luteum.
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Affiliation(s)
| | - Renata Dos Santos Silva
- Department of SurgerySchool of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Vanessa Uemura da Fonseca
- Department of SurgerySchool of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Rafael Magdanelo Leandro
- Department of SurgerySchool of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Thiago Senna Di Vincenzo
- Department of SurgerySchool of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Ana Bárbara Alves-Wagner
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and BiophysicsInstitute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Paula de Carvalho Papa
- Department of SurgerySchool of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
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22
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Yonamine CY, Pinheiro-Machado E, Michalani ML, Freitas HS, Okamoto MM, Corrêa-Giannella ML, Machado UF. Resveratrol improves glycemic control in insulin-treated diabetic rats: participation of the hepatic territory. Nutr Metab (Lond) 2016; 13:44. [PMID: 27366200 PMCID: PMC4928352 DOI: 10.1186/s12986-016-0103-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 06/22/2016] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Resveratrol is a natural polyphenol that has been proposed to improve glycemic control in diabetes, by mechanisms that involve improvement in insulin secretion and activity. In type 1 diabetes (T1D), in which insulin therapy is obligatory, resveratrol treatment has never been investigated. The present study aimed to evaluate resveratrol as an adjunctive agent to insulin therapy in a T1D-like experimental model. METHODS Rats were rendered diabetic by streptozotocin (STZ) treatment. Twenty days later, four groups of animals were studied: non-diabetic (ND); diabetic treated with placebo (DP); diabetic treated with insulin (DI) and diabetic treated with insulin plus resveratrol (DIR). After 30 days of treatment, 24-hour urine was collected; then, blood, soleus muscle, proximal small intestine, renal cortex and liver were sampled. Specific glucose transporter proteins were analyzed (Western blotting) in each territory of interest. Solute carrier family 2 member 2 (Slc2a2), phosphoenolpyruvate carboxykinase (Pck1) and glucose-6-phosphatase catalytic subunit (G6pc) mRNAs (qPCR), glycogen storage and sirtuin 1 (SIRT1) activity were analyzed in liver. RESULTS Diabetes induction increased blood glucose, plasma fructosamine concentrations, and glycosuria. Insulin therapy partially recovered the glycemic control; however, resveratrol as adjunctive therapy additionally improved glycemic control and restored plasma fructosamine concentration to values of non-diabetic rats. Resveratrol did not alter the expression of the glucose transporters GLUT2 and SGLT1 in the intestine, GLUT2 and SGLT2 in kidney and GLUT4 in soleus, suggesting that fluxes of glucose in these territories were unaltered. Differently, in liver, resveratrol promoted a reduction in Slc2a2, Pck1, and G6pc mRNAs, as well as in GLUT2 protein (P < 0.05, DIR vs. DI); besides, it increased (P < 0.01, DIR vs. DI) the hepatic glycogen content, and SIRT1 protein. CONCLUSIONS Resveratrol is able to improve glycemic control in insulin-treated T1D-like rats. This effect seems not to involve changes in glucose fluxes in the small intestine, renal proximal tubule, and soleus skeletal muscle; but to be related to several changes in the liver, where downregulation of Slc2a2/GLUT2, Pck1, and G6pc expression was observed, favoring reduction of glucose production and efflux. Besides, resveratrol increased SIRT1 nuclear protein content in liver, which may be related to the observed gene expression regulations.
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Affiliation(s)
- Caio Yogi Yonamine
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Erika Pinheiro-Machado
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Maria Luiza Michalani
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Helayne Soares Freitas
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Maristela Mitiko Okamoto
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
| | - Maria Lucia Corrêa-Giannella
- />Laboratory of Medical Investigation 18 (LIM-18) and Cell and Molecular Therapy Center (NUCEL), Medical School, University of São Paulo, São Paulo, Brazil
| | - Ubiratan Fabres Machado
- />Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 1524, 05508-000 São Paulo, SP Brazil
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23
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Malodobra-Mazur M, Bednarska-Chabowska D, Olewinski R, Chmielecki Z, Adamiec R, Dobosz T. Single nucleotide polymorphisms in 5′-UTR of the SLC2A4 gene regulate solute carrier family 2 member 4 gene expression in visceral adipose tissue. Gene 2016; 576:499-504. [DOI: 10.1016/j.gene.2015.10.067] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 10/15/2015] [Accepted: 10/28/2015] [Indexed: 11/25/2022]
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24
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Alves-Wagner AB, Mori RC, Sabino-Silva R, Fatima LA, da Silva Alves A, Britto LR, D'Agord Schaan B, Machado UF. Beta-adrenergic blockade increases GLUT4 and improves glycemic control in insulin-treated diabetic Wistar rats. Auton Neurosci 2015; 193:108-16. [DOI: 10.1016/j.autneu.2015.10.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/25/2015] [Accepted: 10/27/2015] [Indexed: 12/20/2022]
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25
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Poletto AC, Furuya DT, David-Silva A, Ebersbach-Silva P, Santos CL, Corrêa-Giannella ML, Passarelli M, Machado UF. Oleic and linoleic fatty acids downregulate Slc2a4/GLUT4 expression via NFKB and SREBP1 in skeletal muscle cells. Mol Cell Endocrinol 2015; 401:65-72. [PMID: 25486510 DOI: 10.1016/j.mce.2014.12.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 11/30/2014] [Accepted: 12/01/2014] [Indexed: 10/24/2022]
Abstract
Oleic (OA) and linoleic (LA) fatty acids may be important regulators of Slc2a4 gene (GLUT4 protein) in skeletal muscle, thus participating in insulin resistance. We investigated the effect of OA and LA on the Slc2a4/GLUT4 expression in L6 muscle cells; as well as potential transcriptional regulators. OA and LA (50-400 µM) decreased the Slc2a4/GLUT4 expression in a dose-dependent way (maximum of ~50%, P < 0.001). OA and LA did not alter the Slc2a4-binding activity of oxysterols-receptor-LXR-alpha and peroxisome-proliferator-activated-receptor-gamma; but decreased the Slc2a4-binding activity of the sterol-regulatory-element-binding-protein-1 (SREBP1) enhancer (50%, P < 0.001), and increased (~30%, P < 0.001) the nuclear proteins binding into the Slc2a4-nuclear-factor-NF-kappa-B-binding site (repressor), and the phosphorylation of the inhibitors of nuclear-factor-kappa-B-kinase alpha/beta (150-300%, P < 0.001). In sum, OA and LA are potent inhibitors of the Slc2a4/GLUT4 expression in muscle cells; an effect involving reduced SREBP1 and increased NFKB transcriptional activity. These regulations may participate in the fatty acid-related pathophysiology of insulin resistance.
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Affiliation(s)
- Ana Cláudia Poletto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Daniela Tomie Furuya
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Aline David-Silva
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Patrícia Ebersbach-Silva
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Camilo Lellis Santos
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Maria Lúcia Corrêa-Giannella
- Department of Internal Medicine, Endocrinology, and Laboratory for Cellular and Molecular Endocrinology (LIM-25), School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Marisa Passarelli
- Lipids Laboratory (LIM10), School of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil.
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26
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Poletto AC, David-Silva A, Yamamoto APDM, Machado UF, Furuya DT. Reduced Slc2a4/GLUT4 expression in subcutaneous adipose tissue of monosodium glutamate obese mice is recovered after atorvastatin treatment. Diabetol Metab Syndr 2015; 7:18. [PMID: 25834641 PMCID: PMC4381373 DOI: 10.1186/s13098-015-0015-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 02/24/2015] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Decreased expression of glucose transporter protein GLUT4, encoded by the solute carrier 2A4 (Slc2a4) gene, is involved in obesity-induced insulin resistance. Local tissue inflammation, by nuclear factor-κB (NFκB)-mediated pathway, has been related to Slc2a4 repression; a mechanism that could be modulated by statins. Using a model of obesity with insulin resistance, this study investigated whether (1) inflammatory markers and Slc2a4 expression are altered; (2) atorvastatin has beneficial effects on inflammation and Slc2a4 expression; and (3) inhibitor of NFκB (IKK)/NFκB pathway is involved in subcutaneous adipose tissue (SAT). FINDINGS Obese mice showed insulin resistance, decreased expression of Slc2a4 mRNA (66%, P < 0.01) and GLUT4 protein (30%, P < 0.05), and increased expression of interleukin 6 (Il6) mRNA (44%, P < 0.05) in SAT. Obese mice treated with atorvastatin had enhanced in vivo insulin sensitivity, besides increased Slc2a4/GLUT4 expression and reduced Il6 expression in SAT. No alterations of tumor necrosis factor-α, interleukin 1β and adiponectin expression or IKKα/β activity in SAT of obese mice or obese mice treated with atorvastatin were observed. CONCLUSIONS Atorvastatin has beneficial effect upon glycemic homeostasis, which may be related to its positive impact on Il6 and Slc2a4/GLUT4 expression in SAT.
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Affiliation(s)
- Ana Cláudia Poletto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, 05508-900 São Paulo, Brazil
| | - Aline David-Silva
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, 05508-900 São Paulo, Brazil
| | - Aline Pedro de Melo Yamamoto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, 05508-900 São Paulo, Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, 05508-900 São Paulo, Brazil
| | - Daniela Tomie Furuya
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, 05508-900 São Paulo, Brazil
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27
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Lehnen TE, Lehnen AM, Tavares AMV, Belló-Klein A, Markoski MM, Machado UF, Schaan B. Atorvastatin administered before myocardial infarction in rats improves contractility irrespective of metabolic changes. Clin Exp Pharmacol Physiol 2014; 41:986-94. [DOI: 10.1111/1440-1681.12313] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 08/27/2014] [Accepted: 09/03/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Tatiana Ederich Lehnen
- Postgraduate Program in Endocrinology; Federal University of Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
- Endocrine Division; Hospital de Clínicas de Porto Alegre; Porto Alegre Rio Grande do Sul Brazil
- Institute of Cardiology/University Foundation of Cardiology of Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
| | - Alexandre Machado Lehnen
- Postgraduate Program in Endocrinology; Federal University of Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
- Endocrine Division; Hospital de Clínicas de Porto Alegre; Porto Alegre Rio Grande do Sul Brazil
- Institute of Cardiology/University Foundation of Cardiology of Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
| | - Angela Maria Vicente Tavares
- Laboratory of Cardiovascular Physiology; Institute of Basic Health Sciences; Federal University of Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
| | - Adriane Belló-Klein
- Laboratory of Cardiovascular Physiology; Institute of Basic Health Sciences; Federal University of Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
| | - Melissa Medeiros Markoski
- Institute of Cardiology/University Foundation of Cardiology of Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics; Institute of Biomedical Sciences; University of São Paulo; São Paulo Brazil
| | - Beatriz Schaan
- Postgraduate Program in Endocrinology; Federal University of Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
- Endocrine Division; Hospital de Clínicas de Porto Alegre; Porto Alegre Rio Grande do Sul Brazil
- Institute of Cardiology/University Foundation of Cardiology of Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
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28
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Moraes PA, Yonamine CY, Pinto Junior DC, Esteves JVD, Machado UF, Mori RC. Insulin acutely triggers transcription of Slc2a4 gene: participation of the AT-rich, E-box and NFKB-binding sites. Life Sci 2014; 114:36-44. [PMID: 25123536 DOI: 10.1016/j.lfs.2014.07.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 07/30/2014] [Accepted: 07/31/2014] [Indexed: 11/16/2022]
Abstract
AIMS The insulin-sensitive glucose transporter protein GLUT4 (solute carrier family 2 member 4 (Slc2a4) gene) plays a key role in glycemic homeostasis. Decreased GLUT4 expression is a current feature in insulin resistant conditions such as diabetes, and the restoration of GLUT4 content improves glycemic control. This study investigated the effect of insulin upon Slc2a4/GLUT4 expression, focusing on the AT-rich element, E-box and nuclear factor NF-kappa-B (NFKB) site. MAIN METHODS Rat soleus muscles were incubated during 180 min with insulin, added or not with wortmannin (phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit gamma isoform (PI3K)-inhibitor), ML9 (serine/threonine protein kinase (AKT) inhibitor) and tumor necrosis factor (TNF, GLUT4 repressor), and processed for analysis of GLUT4 protein (Western blotting); Slc2a4, myocyte enhancer factor 2a/d (Mef2a/d), hypoxia inducible factor 1a (Hif1a), myogenic differentiation 1 (Myod1) and nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (Nfkb1) messenger ribonucleic acids (mRNAs) (polymerase chain reaction (PCR)); and AT-rich- (myocyte-specific enhancer factor 2 (MEF2)-binding site), E-box- (hypoxia inducible factor 1 alpha (HIF1A)- and myoblast determination protein 1 (MYOD1)-binding site), and NFKB-binding activity (electrophoretic mobility assay). KEY FINDINGS Insulin increased Slc2a4 mRNA expression (140%) and nuclear proteins binding to AT-rich and E-box elements (~90%), all effects were prevented by wortmannin and ML9. Insulin also increased Mef2a/d and Myod1 mRNA expression, suggesting the participation of these transcriptional factors in the Slc2a4 enhancing effect. Conversely, insulin decreased Nfkb1 mRNA expression and protein binding to the NFKB-site (~50%). Furthermore, TNF-induced inhibition of GLUT4 expression (~40%) was prevented by insulin in an NFKB-binding repressing mechanism. GLUT4 protein paralleled the Slc2a4 mRNA regulations. SIGNIFICANCE Insulin enhances the Slc2a4/GLUT4 expression in the skeletal muscle by activating AT-rich and E-box elements, in a PI3K/AKT-dependent mechanism, and repressing NFKB-site activity as well. These results unravel how post-prandial increase of insulin may guarantee GLUT4 expression, and how the insulin signaling impairment can participate in insulin resistance-induced repression of GLUT4.
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Affiliation(s)
- Paulo Alexandre Moraes
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Caio Yogi Yonamine
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Danilo Correa Pinto Junior
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - João Victor DelConti Esteves
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Rosana Cristina Mori
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil.
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29
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Langhans C, Weber-Carstens S, Schmidt F, Hamati J, Kny M, Zhu X, Wollersheim T, Koch S, Krebs M, Schulz H, Lodka D, Saar K, Labeit S, Spies C, Hubner N, Spranger J, Spuler S, Boschmann M, Dittmar G, Butler-Browne G, Mouly V, Fielitz J. Inflammation-induced acute phase response in skeletal muscle and critical illness myopathy. PLoS One 2014; 9:e92048. [PMID: 24651840 PMCID: PMC3961297 DOI: 10.1371/journal.pone.0092048] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 02/17/2014] [Indexed: 12/29/2022] Open
Abstract
Objectives Systemic inflammation is a major risk factor for critical-illness myopathy (CIM) but its pathogenic role in muscle is uncertain. We observed that interleukin 6 (IL-6) and serum amyloid A1 (SAA1) expression was upregulated in muscle of critically ill patients. To test the relevance of these responses we assessed inflammation and acute-phase response at early and late time points in muscle of patients at risk for CIM. Design Prospective observational clinical study and prospective animal trial. Setting Two intensive care units (ICU) and research laboratory. Patients/Subjects 33 patients with Sequential Organ Failure Assessment scores ≥8 on 3 consecutive days within 5 days in ICU were investigated. A subgroup analysis of 12 patients with, and 18 patients without CIM (non-CIM) was performed. Two consecutive biopsies from vastus lateralis were obtained at median days 5 and 15, early and late time points. Controls were 5 healthy subjects undergoing elective orthopedic surgery. A septic mouse model and cultured myoblasts were used for mechanistic analyses. Measurements and Main Results Early SAA1 expression was significantly higher in skeletal muscle of CIM compared to non-CIM patients. Immunohistochemistry showed SAA1 accumulations in muscle of CIM patients at the early time point, which resolved later. SAA1 expression was induced by IL-6 and tumor necrosis factor-alpha in human and mouse myocytes in vitro. Inflammation-induced muscular SAA1 accumulation was reproduced in a sepsis mouse model. Conclusions Skeletal muscle contributes to general inflammation and acute-phase response in CIM patients. Muscular SAA1 could be important for CIM pathogenesis. Trial Registration ISRCTN77569430.
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Affiliation(s)
- Claudia Langhans
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
| | - Steffen Weber-Carstens
- Charité Universitätsmedizin Berlin, Campus Virchow and Campus Mitte, Anesthesiology and Operative Intensive Care Medicine, Berlin, Germany
| | - Franziska Schmidt
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
| | - Jida Hamati
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
| | - Melanie Kny
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
| | - Xiaoxi Zhu
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
| | - Tobias Wollersheim
- Charité Universitätsmedizin Berlin, Campus Virchow and Campus Mitte, Anesthesiology and Operative Intensive Care Medicine, Berlin, Germany
| | - Susanne Koch
- Charité Universitätsmedizin Berlin, Campus Virchow and Campus Mitte, Anesthesiology and Operative Intensive Care Medicine, Berlin, Germany
| | - Martin Krebs
- Charité Universitätsmedizin Berlin, Campus Virchow and Campus Mitte, Anesthesiology and Operative Intensive Care Medicine, Berlin, Germany
| | - Herbert Schulz
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Doerte Lodka
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
| | - Kathrin Saar
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | | | - Claudia Spies
- Charité Universitätsmedizin Berlin, Campus Virchow and Campus Mitte, Anesthesiology and Operative Intensive Care Medicine, Berlin, Germany
| | - Norbert Hubner
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Joachim Spranger
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
- Charité Universitätsmedizin Berlin, NeuroCure Clinical Research Center, Berlin, Germany
- Charité Universitätsmedizin Berlin, Department of Endocrinology, Diabetes and Nutrition, Berlin, Germany
| | - Simone Spuler
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
| | - Michael Boschmann
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
| | - Gunnar Dittmar
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Gillian Butler-Browne
- Institut de Myologie, Institut national de la santé et de la recherche médicale, and L’Université Pierre et Marie Curie Paris, Paris, France
| | - Vincent Mouly
- Institut de Myologie, Institut national de la santé et de la recherche médicale, and L’Université Pierre et Marie Curie Paris, Paris, France
| | - Jens Fielitz
- Experimental and Clinical Research Center (ECRC), a Cooperation between Max Delbrück Center and Charité Universitätsmedizin Berlin, Campus Buch, Berlin, Germany
- Charité Universitätsmedizin Berlin, Campus Virchow, Cardiology, Berlin, Germany
- * E-mail:
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