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Wang K, Zhou Z, Huang L, Kan Q, Wang Z, Wu W, Yao C. PINK1 dominated mitochondria associated genes signature predicts abdominal aortic aneurysm with metabolic syndrome. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166919. [PMID: 38251428 DOI: 10.1016/j.bbadis.2023.166919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 01/23/2024]
Abstract
Abdominal aortic aneurysm (AAA) is typically asymptomatic but a devastating cardiovascular disorder, with overall mortality exceeding 80 % once it ruptures. Some patients with AAA may also have comorbid metabolic syndrome (MS), suggesting a potential common underlying pathogenesis. Mitochondrial dysfunction has been reported as a key factor contributing to the deterioration of both AAA and MS. However, the intricate interplay between metabolism and mitochondrial function, both contributing to the development of AAA, has not been thoroughly explored. In this study, we identified candidate genes related to mitochondrial function in AAA and MS. Subsequently, we developed a nomoscore model comprising hub genes (PINK1, ACSL1, CYP27A1, and SLC25A11), identified through the application of two machine learning algorithms, to predict AAA. We observed a marked disparity in immune infiltration profiles between high- and low-nomoscore groups. Furthermore, we confirmed a significant upregulation of the expression of the four hub genes in AAA tissues. Among these, ACSL1 showed relatively higher expression in LPS-treated RAW264.7 cell lines, while CYP27A1 exhibited a notable decrease. Moreover, SLC25A11 displayed a significant upregulation in AngII-treated VSMCs. Conversely, the expression level of PINK1 declined in LPS-stimulated RAW264.7 cell lines but significantly increased in AngII-treated VSMCs. In vivo experiments revealed that the activation of PINK1-mediated mitophagy inhibited the development of AAA in mice. In this current study, we have innovatively identified four mitochondrial function-related genes through integrated bioinformatic analysis. This discovery sheds light on the regulatory mechanisms and unveils promising therapeutic targets for the comorbidity of AAA and MS.
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Affiliation(s)
- Kangjie Wang
- Division of Vascular Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510800, China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhihao Zhou
- Division of Vascular Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510800, China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Lin Huang
- Division of Vascular Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510800, China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Qinghui Kan
- Division of Vascular Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510800, China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhecun Wang
- Division of Vascular Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510800, China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
| | - Weibin Wu
- Division of Vascular Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510800, China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
| | - Chen Yao
- Division of Vascular Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510800, China; National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Disease, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
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Møller AL, Vasan RS, Levy D, Andersson C, Lin H. Integrated omics analysis of coronary artery calcifications and myocardial infarction: the Framingham Heart Study. Sci Rep 2023; 13:21581. [PMID: 38062110 PMCID: PMC10703905 DOI: 10.1038/s41598-023-48848-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023] Open
Abstract
Gene function can be described using various measures. We integrated association studies of three types of omics data to provide insights into the pathophysiology of subclinical coronary disease and myocardial infarction (MI). Using multivariable regression models, we associated: (1) single nucleotide polymorphism, (2) DNA methylation, and (3) gene expression with coronary artery calcification (CAC) scores and MI. Among 3106 participants of the Framingham Heart Study, 65 (2.1%) had prevalent MI and 60 (1.9%) had incident MI, median CAC value was 67.8 [IQR 10.8, 274.9], and 1403 (45.2%) had CAC scores > 0 (prevalent CAC). Prevalent CAC was associated with AHRR (linked to smoking) and EXOC3 (affecting platelet function and promoting hemostasis). CAC score was associated with VWA1 (extracellular matrix protein associated with cartilage structure in endomysium). For prevalent MI we identified FYTTD1 (down-regulated in familial hypercholesterolemia) and PINK1 (linked to cardiac tissue homeostasis and ischemia-reperfusion injury). Incident MI was associated with IRX3 (enhancing browning of white adipose tissue) and STXBP3 (controlling trafficking of glucose transporter type 4 to plasma). Using an integrative trans-omics approach, we identified both putatively novel and known candidate genes associated with CAC and MI. Replication of findings is warranted.
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Affiliation(s)
- Amalie Lykkemark Møller
- Section of Preventive Medicine and Epidemiology, Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
- Department of Cardiology, Nordsjællands Hospital, Hillerød, Denmark.
| | - Ramachandran S Vasan
- Section of Preventive Medicine and Epidemiology, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
- Boston University's and National Heart, Lung, and Blood Institute's Framingham Heart Study, Framingham, MA, USA
- University of Texas School of Public Health San Antonio, and Departments of Medicine and Population Health Sciences, University of Texas Health Science Center, San Antonio, TX, USA
| | - Daniel Levy
- Boston University's and National Heart, Lung, and Blood Institute's Framingham Heart Study, Framingham, MA, USA
- Population Sciences Branch, Division of Intramural Research, National Institutes of Health, Bethesda, MD, USA
| | - Charlotte Andersson
- Section of Cardiovascular Medicine, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - Honghuang Lin
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
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Wang L, Mao Z, Shao F. Identification of toll-like receptor 5 and acyl-CoA synthetase long chain family member 1 as hub genes are correlated with the severe forms of COVID-19 by Weighted gene co-expression network analysis. IET Syst Biol 2023; 17:327-335. [PMID: 37823415 PMCID: PMC10725708 DOI: 10.1049/syb2.12079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 09/05/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023] Open
Abstract
Since a 25% mortality rate occurred in critical Coronavirus disease 2019 (COVID-19) patients, investigating the potential drivers remains to be important. Here, the authors applied Weighted Gene Co-expression Network Analysis to identify the potential drivers in the blood samples of multiple COVID-19 expression profiles. The authors found that the darkslateblue module was significantly correlated with critical COVID-19, and Gene Ontology analysis indicated terms associated with the inflammation pathway and apoptotic process. The authors intersected differentially expressed genes, Maximal Clique Centrality calculated hub genes, and COVID-19 related genes in the Genecards dataset, and two genes, toll-like receptor 5 (TLR5) and acyl-CoA synthetase long chain family member 1 (ACSL1), were screened out. The Gene Set Enrichment Analysis further supports their core role in the inflammatory pathway. Furthermore, the cell-type identification by estimating relative subsets of RNA transcript demonstrated that TLR5 and ACSL1 were associated with neutrophil enrichment in critical COVID-19 patients. Collectively, the aurthors identified two hub genes that were strongly correlated with critical COVID-19. These may help clarify the pathogenesis and assist the immunotherapy development.
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Affiliation(s)
- Luoyi Wang
- Department of NephrologyHenan Provincial Key Laboratory of Kidney Disease and ImmunologyHenan Provincial Clinical Research Center for Kidney DiseaseHenan Provincial People's Hospital and People's Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Zhaomin Mao
- Key Clinical Laboratory of Henan ProvinceDepartment of Clinical LaboratoryThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanChina
| | - Fengmin Shao
- Department of NephrologyHenan Provincial Key Laboratory of Kidney Disease and ImmunologyHenan Provincial Clinical Research Center for Kidney DiseaseHenan Provincial People's Hospital and People's Hospital of Zhengzhou UniversityZhengzhouHenanChina
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Monge P, Astudillo AM, Pereira L, Balboa MA, Balsinde J. Dynamics of Docosahexaenoic Acid Utilization by Mouse Peritoneal Macrophages. Biomolecules 2023; 13:1635. [PMID: 38002317 PMCID: PMC10669016 DOI: 10.3390/biom13111635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/02/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
In this work, the incorporation of docosahexaenoic acid (DHA) in mouse resident peritoneal macrophages and its redistribution within the various phospholipid classes were investigated. Choline glycerophospholipids (PC) behaved as the major initial acceptors of DHA. Prolonged incubation with the fatty acid resulted in the transfer of DHA from PC to ethanolamine glycerophospholipids (PE), reflecting phospholipid remodeling. This process resulted in the cells containing similar amounts of DHA in PC and PE in the resting state. Mass spectrometry-based lipidomic analyses of phospholipid molecular species indicated a marked abundance of DHA in ether phospholipids. Stimulation of the macrophages with yeast-derived zymosan resulted in significant decreases in the levels of all DHA-containing PC and PI species; however, no PE or PS molecular species were found to decrease. In contrast, the levels of an unusual DHA-containing species, namely PI(20:4/22:6), which was barely present in resting cells, were found to markedly increase under zymosan stimulation. The levels of this phospholipid also significantly increased when the calcium-ionophore A23187 or platelet-activating factor were used instead of zymosan to stimulate the macrophages. The study of the route involved in the synthesis of PI(20:4/22:6) suggested that this species is produced through deacylation/reacylation reactions. These results define the increases in PI(20:4/22:6) as a novel lipid metabolic marker of mouse macrophage activation, and provide novel information to understand the regulation of phospholipid fatty acid turnover in activated macrophages.
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Affiliation(s)
- Patricia Monge
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), 47003 Valladolid, Spain (A.M.A.); (M.A.B.)
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Alma M. Astudillo
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), 47003 Valladolid, Spain (A.M.A.); (M.A.B.)
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Laura Pereira
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), 47003 Valladolid, Spain (A.M.A.); (M.A.B.)
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - María A. Balboa
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), 47003 Valladolid, Spain (A.M.A.); (M.A.B.)
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Jesús Balsinde
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), 47003 Valladolid, Spain (A.M.A.); (M.A.B.)
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Yu S, Lin Y, Li Y, Chen S, Zhou L, Song H, Yang C, Zhang H, Zhou J, Sun S, Li Y, Chen J, Feng R, Qiao N, Xie Y, Zhang R, Yin T, Chen S, Li Q, Zhu J, Qu J. Systemic immune profiling of Omicron-infected subjects inoculated with different doses of inactivated virus vaccine. Cell 2023; 186:4615-4631.e16. [PMID: 37769658 DOI: 10.1016/j.cell.2023.08.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 07/03/2023] [Accepted: 08/23/2023] [Indexed: 10/03/2023]
Abstract
SARS-CoV-2 primary strain-based vaccination exerts a protective effect against Omicron variants-initiated infection, symptom occurrence, and disease severity in a booster-dependent manner. Yet, the underlying mechanisms remain unclear. During the 2022 Omicron outbreak in Shanghai, we enrolled 122 infected adults and 50 uninfected controls who had been unvaccinated or vaccinated with two or three doses of COVID-19 inactive vaccines and performed integrative analysis of 41-plex CyTOF, RNA-seq, and Olink on their peripheral blood samples. The frequencies of HLA-DRhi classical monocytes, non-classical monocytes, and Th1-like Tem tended to increase, whereas the frequency of Treg was reduced by booster vaccine, and they influenced symptom occurrence in a vaccine dose-dependent manner. Intercorrelation and mechanistic analysis suggested that the booster vaccination induced monocytic training, which would prime monocytic activation and maturation rather than differentiating into myeloid-derived suppressive cells upon Omicron infections. Overall, our study provides insights into how booster vaccination elaborates protective immunity across SARS-CoV-2 variants.
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Affiliation(s)
- Shanhe Yu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China
| | - Yingni Lin
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China
| | - Yong Li
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China
| | - Shijun Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Lina Zhou
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China
| | - Hejie Song
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China
| | - Cuiping Yang
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai 201801, China
| | - Haiqing Zhang
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China
| | - Jianping Zhou
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China
| | - Shunchang Sun
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai 201801, China
| | - Yanan Li
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China
| | - Juan Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Ruixue Feng
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Niu Qiao
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Yinyin Xie
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Ruihong Zhang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Tong Yin
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China
| | - Saijuan Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China.
| | - Qingyun Li
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China.
| | - Jiang Zhu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Collaborative Innovation Center of Hematology, Ruijin Hospital Affiliated to Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China.
| | - Jieming Qu
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China; National Research Center for Translational Medicine at Shanghai, Shanghai 200025, China.
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6
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Nattero-Chávez L, Bayona Cebada A, Fernández-Durán E, Quintero Tobar A, Dorado Avendaño B, Escobar-Morreale H, Luque-Ramírez M. "Arterial stiffness is not associated with changes in the circadian pattern of blood pressure in patients with type 1 diabetes mellitus and cardiovascular autonomic dysfunction". Diab Vasc Dis Res 2023; 20:14791641231173621. [PMID: 37184151 DOI: 10.1177/14791641231173621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
INTRODUCTION Cardiovascular autonomic neuropathy (CAN) associates an abnormal circadian pattern in blood pressure (BP) regulation that might be aggravated by the coexistence of arterial stiffness. We aimed to evaluate the effect of arterial stiffness in the circadian rhythm of BP in patients with type 1 diabetes and CAN. METHODS Cross-sectional study including 56 consecutive patients with type 1 diabetes and CAN, with (n = 28) or without (n = 24) arterial stiffness as defined by an ankle-brachial index above 1.2. CAN was diagnosed by BP and heart rate responses to active standing and cardiovascular autonomic reflex tests. Absence of nocturnal decrease in BP-"non-dipping" pattern- was defined by a daytime to nighttime decrease in mean BP smaller than 10%. RESULTS The study's subjects mean age was 40 ± 11 years-old, their mean duration of diabetes was 22 ± 10 years, and their mean A1c was 7.9 ± 1.5%. A "non-dipping" pattern was observed in 28 patients (54%) regardless of the presence or absence of arterial stiffness. Age, waist circumference, body mass index, and A1c, were introduced as independent variables into a multiple regression analysis. The stepwise model (R2: 0.113, p = 0.016) retained only A1c levels (β: ‒ 0.333, 95% confidence interval [CI]: -3.10 to -0.33) as significant predictor of the percentage of nighttime decrease in mean BP. CONCLUSIONS A non-dipping pattern in BP is very common in patients with type 1 diabetes presenting with subclinical CAN and is associated with a poorer metabolic control. On the contrary, coexistence of arterial stiffness is not associated with abnormalities in circadian BP regulation.
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Affiliation(s)
- Lía Nattero-Chávez
- Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Grupo de Investigación en Diabetes, Obesidad y Reproducción Humana, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
- Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - Ane Bayona Cebada
- Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Grupo de Investigación en Diabetes, Obesidad y Reproducción Humana, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Elena Fernández-Durán
- Grupo de Investigación en Diabetes, Obesidad y Reproducción Humana, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Alejandra Quintero Tobar
- Grupo de Investigación en Diabetes, Obesidad y Reproducción Humana, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Beatriz Dorado Avendaño
- Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Héctor Escobar-Morreale
- Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Grupo de Investigación en Diabetes, Obesidad y Reproducción Humana, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
- Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - Manuel Luque-Ramírez
- Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Grupo de Investigación en Diabetes, Obesidad y Reproducción Humana, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
- Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
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7
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Thevkar-Nagesh P, Habault J, Voisin M, Ruff SE, Ha S, Ruoff R, Chen X, Rawal S, Zahr T, Szabo G, Rogatsky I, Fisher EA, Garabedian MJ. Transcriptional regulation of Acsl1 by CHREBP and NF-kappa B in macrophages during hyperglycemia and inflammation. PLoS One 2022; 17:e0272986. [PMID: 36054206 PMCID: PMC9439225 DOI: 10.1371/journal.pone.0272986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 08/01/2022] [Indexed: 11/18/2022] Open
Abstract
Acyl-CoA synthetase 1 (ACSL1) is an enzyme that converts fatty acids to acyl-CoA-derivatives for lipid catabolism and lipid synthesis in general and can provide substrates for the production of mediators of inflammation in monocytes and macrophages. Acsl1 expression is increased by hyperglycemia and inflammatory stimuli in monocytes and macrophages, and promotes the pro-atherosclerotic effects of diabetes in mice. Yet, surprisingly little is known about the mechanisms underlying Acsl1 transcriptional regulation. Here we demonstrate that the glucose-sensing transcription factor, Carbohydrate Response Element Binding Protein (CHREBP), is a regulator of the expression of Acsl1 mRNA by high glucose in mouse bone marrow-derived macrophages (BMDMs). In addition, we show that inflammatory stimulation of BMDMs with lipopolysaccharide (LPS) increases Acsl1 mRNA via the transcription factor, NF-kappa B. LPS treatment also increases ACSL1 protein abundance and localization to membranes where it can exert its activity. Using an Acsl1 reporter gene containing the promoter and an upstream regulatory region, which has multiple conserved CHREBP and NF-kappa B (p65/RELA) binding sites, we found increased Acsl1 promoter activity upon CHREBP and p65/RELA expression. We also show that CHREBP and p65/RELA occupy the Acsl1 promoter in BMDMs. In primary human monocytes cultured in high glucose versus normal glucose, ACSL1 mRNA expression was elevated by high glucose and further enhanced by LPS treatment. Our findings demonstrate that CHREBP and NF-kappa B control Acsl1 expression under hyperglycemic and inflammatory conditions.
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Affiliation(s)
- Prashanth Thevkar-Nagesh
- Department of Microbiology, NYU School of Medicine, New York, NY, United States of America
- Department of Medicine, NYU School of Medicine, New York, NY, United States of America
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States of America
| | - Justine Habault
- Department of Microbiology, NYU School of Medicine, New York, NY, United States of America
| | - Maud Voisin
- Department of Microbiology, NYU School of Medicine, New York, NY, United States of America
| | - Sophie E. Ruff
- Department of Microbiology, NYU School of Medicine, New York, NY, United States of America
| | - Susan Ha
- Department of Urology, NYU School of Medicine, New York, NY, United States of America
| | - Rachel Ruoff
- Department of Microbiology, NYU School of Medicine, New York, NY, United States of America
| | - Xi Chen
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States of America
- Hosptial for Special Surgery, New York, NY, United States of America
| | - Shruti Rawal
- Department of Medicine, NYU School of Medicine, New York, NY, United States of America
| | - Tarik Zahr
- Department of Medicine, NYU School of Medicine, New York, NY, United States of America
| | - Gyongyi Szabo
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States of America
| | - Inez Rogatsky
- Hosptial for Special Surgery, New York, NY, United States of America
- Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School for Medical Sciences, New York, NY, United States of America
| | - Edward A. Fisher
- Department of Microbiology, NYU School of Medicine, New York, NY, United States of America
- Department of Medicine, NYU School of Medicine, New York, NY, United States of America
| | - Michael J. Garabedian
- Department of Microbiology, NYU School of Medicine, New York, NY, United States of America
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The Relationship between Selected Inflammation and Oxidative Stress Biomarkers and Carotid Intima-Media Thickness (IMT) Value in Youth with Type 1 Diabetes Co-Existing with Early Microvascular Complications. J Clin Med 2022; 11:jcm11164732. [PMID: 36012972 PMCID: PMC9409989 DOI: 10.3390/jcm11164732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/21/2022] Open
Abstract
Recent years have confirmed the importance of oxidative stress and biomarkers of inflammation in estimating the risk of cardiovascular disease (CVD) and explaining not fully understood pathogenesis of diabetic macroangiopathy. We aimed to analyze the relation between the intima-media thickness (IMT) of common carotid arteries and the occurrence of classical cardiovascular risk factors, together with the newly proposed biomarkers of CVD risk (high-sensitivity C-reactive protein (hsCRP), myeloperoxidase (MPO), adiponectin, N-terminal-pro B-type natriuretic peptide (NT-proBNP) and vitamin D) in youth with type 1 diabetes (T1D) recognized in screening tests to present early stages of microvascular complications (VC). The study group consisted of 50 adolescents and young adults with T1D, mean age 17.1 years (10–26 age range), including 20 patients with VC (+) and 30 VC (−). The control group (Control) consisted of 22 healthy volunteers, mean age 16.5 years (11–26 age range). In the VC (+) patients, we found a significantly higher concentration of HbA1c, lipid levels, hsCRP and NT-proBNP. BMI and blood pressure values were highest in the VC (+) group. Higher levels of MPO and lower levels of vitamin D were found in both diabetic groups vs. Control. IMT in VC (+) patients was significantly higher and correlated positively with HbA1c, hsCRP, NT-pro-BNP and negatively with vitamin D levels. In conclusion, youth with T1D and VC (+) present many abnormalities in the classical and new CVD biomarkers. hsCRP and MPO seem to be the most important markers for estimating the risk of macroangiopathy. NT-proBNP may present a possible marker of early myocardial injury in this population.
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9
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Adoptive transfer of metabolically reprogrammed macrophages for atherosclerosis treatment in diabetic ApoE−/- mice. Bioact Mater 2022; 16:82-94. [PMID: 35386323 PMCID: PMC8958426 DOI: 10.1016/j.bioactmat.2022.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 01/24/2022] [Accepted: 02/07/2022] [Indexed: 01/02/2023] Open
Abstract
Atherosclerosis is characterized by inflammation in the arterial wall, which is known to be exacerbated by diabetes. Therapeutic repression of inflammation is a promising strategy for treating atherosclerosis. In this study, we showed that diabetes aggravated atherosclerosis in apolipoproteinE knockout (ApoE−/-) mice, in which increased expression of long-chain acyl-CoA synthetase 1 (Acsl1) in macrophages played an important role. Knockdown of Acsl1 in macrophages (MφshAcsl1) reprogrammed macrophages to an anti-inflammatory phenotype, especially under hyperglycemic conditions. Injection of MφshAcsl1 reprogrammed macrophages into streptozotocin (STZ)-induced diabetic ApoE−/- mice (ApoE−/-+ STZ) alleviated inflammation locally in the plaque, liver and spleen. Consistent with the reduction in inflammation, plaques became smaller and more stable after the adoptive transfer of reprogrammed macrophages. Taken together, our findings indicate that increased Acsl1 expression in macrophages play a key role in aggravated atherosclerosis of diabetic mice, possibly by promoting inflammation. Adoptive transfer of Acsl1 silenced macrophages may serve as a potential therapeutic strategy for atherosclerosis. Increased Acsl1 in macrophages is responsible for the exacerbated inflammation in diabetes MφshAcsl1 is characterized as anti-inflammatory phenotype Adoptive transfer of MφshAcsl1 alleviates atherosclerosis in diabetic ApoE−/- mice MφshAcsl1 inhibits both local and systemic inflammation in vivo
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10
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Felici N, Liu D, Maret J, Restrepo M, Borovskiy Y, Hajj J, Chung W, Laudanski K. Long-Term Abnormalities of Lipid Profile After a Single Episode of Sepsis. Front Cardiovasc Med 2021; 8:674248. [PMID: 34869619 PMCID: PMC8634493 DOI: 10.3389/fcvm.2021.674248] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 09/29/2021] [Indexed: 01/15/2023] Open
Abstract
Background: Acute disturbances of the lipid profile are commonplace during acute sepsis episode. However, their long-term persistence has not to be investigated despite pivotal role of dyslipidemia in several comorbidities excessively noted in sepsis survivors (stroke, cardiomyopathy). Methods: A total of 9,861 individuals hospitalized for a singular episode of sepsis between 2009 and 2019 were identified from electronic medical records. Lab measurements of total cholesterol (Tchol), high-density lipoprotein (HDL-c), low-density lipoprotein (LDL-c), very low-density lipoprotein (VLDL), triglycerides (TG), lipoprotein(a) [Lp (a)], apolipoprotein B (ApoB), and C-reactive protein (CRP). The data were examined as baseline values before sepsis, during hospitalization, and <3 months, 3–6 months, 6–12 months, 1–2 years, and more than 2 years from initial sepsis. Results: Significant reductions in HDL-c (HDLbaseline = 44.06 vs. HDLsepsis = 28.2; U = −37.79, p < 0.0001, Cohen's d = 0.22) and LDL-c serum levels were observed during and up to three months post sepsis, with females much less affected. In contrast, male subjects had derangement in HDL present for up to two years after a singular septic episode. Total cholesterol levels were slightly yet significantly elevated for up to two years after sepsis. TG were elevated up to one year [TGbaseline = 128.26 vs. TGsepsis = 170.27, t(8255) = −21.33, p < 0.0001, Cohen's d = 0.49] and normalized. Lp(a) was elevated up to two years after initial episode [Lp(a)baseline = 24.6 ± 16.06; Lp(a)sepsis−2year = 8.25 ± 5.17; Lp(a)morethan2years = 61.4 ± 40.1; ANOVA F(2, 24) = 7.39; p = 0.0032]. Response to statin therapy was blunted in sepsis survivors for several years after sepsis resolution. Significant drop-out in prescription of statins and niacin after sepsis was observed. Serum high sensitivity C-reactive protein was elevated for up to five years after sepsis resolution (H [6;1685] = 502.2; p < 0.0001). Discussion: Lipid abnormalities persisted long after the initial septic insult suggesting potential role in accelerating atherosclerosis and other abnormalities. In addition, sepsis seems to blunt statin effectiveness. Additionally, a significant and unexplained drop in statin use was seen in post-septic period. Conclusions: Our study suggests that persistent derangements of lipid profile components for up to two years after sepsis may be associated with altered risk of atherosclerosis-related events among sepsis survivors.
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Affiliation(s)
| | - Da Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Josh Maret
- College Arts and Sciences, Drexel University, Philadelphia, PA, United States
| | - Mariana Restrepo
- College Arts and Science, University of Pennsylvania, Philadelphia, PA, United States
| | - Yuliya Borovskiy
- Corporate Informational Service, Penn Medicine, Philadelphia, PA, United States.,Data Analytics Core, Penn Medicine, Philadelphia, PA, United States
| | - Jihane Hajj
- Department of Nursing, Widener University, Chester, PA, United States
| | - Wesley Chung
- Society for HealthCare Innovation, San Francisco, CA, United States
| | - Krzysztof Laudanski
- Department of Anesthesiology and Critical Care, Hospital of the University of Pennsylvania, Philadelphia, PA, United States.,Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, United States.,Leonard Davis Institute of Health Economics, Philadelphia, PA, United States
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11
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Xia H, Zhang Z, You F. Inhibiting ACSL1-Related Ferroptosis Restrains Murine Coronavirus Infection. Viruses 2021; 13:2383. [PMID: 34960652 PMCID: PMC8708337 DOI: 10.3390/v13122383] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/25/2021] [Accepted: 11/25/2021] [Indexed: 12/02/2022] Open
Abstract
Murine hepatitis virus strain A59 (MHV-A59) was shown to induce pyroptosis, apoptosis, and necroptosis of infected cells, especially in the murine macrophages. However, whether ferroptosis, a recently identified form of lytic cell death, was involved in the pathogenicity of MHV-A59 is unknown. We utilized murine macrophages and a C57BL/6 mice intranasal infection model to address this. In primary macrophages, the ferroptosis inhibitor inhibited viral propagation, inflammatory cytokines released, and cell syncytia formed after MHV-A59 infection. In the mouse model, we found that in vivo administration of liproxstatin-1 ameliorated lung inflammation and tissue injuries caused by MHV-A59 infection. To find how MHV-A59 infection influenced the expression of ferroptosis-related genes, we performed RNA-seq in primary macrophages and found that MHV-A59 infection upregulates the expression of the acyl-CoA synthetase long-chain family member 1 (ACSL1), a novel ferroptosis inducer. Using ferroptosis inhibitors and a TLR4 inhibitor, we showed that MHV-A59 resulted in the NF-kB-dependent, TLR4-independent ACSL1 upregulation. Accordingly, ACSL1 inhibitor Triacsin C suppressed MHV-A59-infection-induced syncytia formation and viral propagation in primary macrophages. Collectively, our study indicates that ferroptosis inhibition protects hosts from MHV-A59 infection. Targeting ferroptosis may serve as a potential treatment approach for dealing with hyper-inflammation induced by coronavirus infection.
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Affiliation(s)
| | | | - Fuping You
- Department of Systems Biomedicine, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (H.X.); (Z.Z.)
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12
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Song Q, Wang Z, Zhang H, Li X, Zhang Y, Xu Q, Chang G, Zhang H, Chen G. Single nucleotide polymorphism scanning and expression analysis of ACSL1 from different duck breeds. CANADIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1139/cjas-2020-0131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Accumulating studies have indicated that the long-chain fatty acyl-CoA1 (ACSL1) gene is related to fat deposition and meat quality in mammals. However, few studies have investigated the relationship between ACSL1 and lipid deposition in ducks. To examine this, we assessed the physicochemical property, homologous alignment, and phylogenetic analyses of the ACSL1 amino acid sequence using bioinformatics tools. The analysis indicated that the ACSL1 amino acid sequence varies in animals, and the duck ACSL1 protein is most closely related to that of chicken. Two single nucleotide polymorphism (SNP) sites were identified at 1749 and 1905 bp of the coding region of ACSL1 by sequencing. Quantitative real-time PCR and western blotting were used to measure mRNA and protein levels in abdominal fat, breast muscle, and liver tissue of Pekin duck (BD) and Cherry Valley duck (CD). mRNA and protein expression were significantly higher in BD than in CD in abdominal fat and liver tissue (P < 0.05). In breast muscle, the mRNA level of ACSL1 was also significantly higher in BD than in CD (P < 0.05), and protein expression in BD tended to be higher than that of CD. These results suggest that ACSL1 may contribute to lipid deposition and meat quality in ducks.
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Affiliation(s)
- Qianqian Song
- Key Laboratory of Animal Genetics and Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, People’s Republic of China
| | - Zhixiu Wang
- Key Laboratory of Animal Genetics and Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, People’s Republic of China
| | - Hongliang Zhang
- Bureau of Agriculture and Rural of the Lhasa, Lhasa 850000, People’s Republic of China
| | - Xiangxiang Li
- National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing 100193, People’s Republic of China
| | - Yang Zhang
- Key Laboratory of Animal Genetics and Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, People’s Republic of China
| | - Qi Xu
- Key Laboratory of Animal Genetics and Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, People’s Republic of China
| | - Guobin Chang
- Key Laboratory of Animal Genetics and Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, People’s Republic of China
| | - Hao Zhang
- National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing 100193, People’s Republic of China
| | - Guohong Chen
- Key Laboratory of Animal Genetics and Breeding and Molecular Design of Jiangsu Province, Yangzhou University, Yangzhou 225009, People’s Republic of China
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13
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Kizilay Mancini O, Huynh DN, Menard L, Shum-Tim D, Ong H, Marleau S, Colmegna I, Servant MJ. Ex vivo Ikkβ ablation rescues the immunopotency of mesenchymal stromal cells from diabetics with advanced atherosclerosis. Cardiovasc Res 2021; 117:756-766. [PMID: 32339220 PMCID: PMC7898947 DOI: 10.1093/cvr/cvaa118] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/16/2020] [Accepted: 04/21/2020] [Indexed: 12/16/2022] Open
Abstract
AIMS Diabetes is a conventional risk factor for atherosclerotic cardiovascular disease and myocardial infarction (MI) is the most common cause of death among these patients. Mesenchymal stromal cells (MSCs) in patients with type 2 diabetes mellitus (T2DM) and atherosclerosis have impaired ability to suppress activated T-cells (i.e. reduced immunopotency). This is mediated by an inflammatory shift in MSC-secreted soluble factors (i.e. pro-inflammatory secretome) and can contribute to the reduced therapeutic effects of autologous T2DM and atherosclerosis-MSC post-MI. The signalling pathways driving the altered secretome of atherosclerosis- and T2DM-MSC are unknown. Specifically, the effect of IκB kinase β (IKKβ) modulation, a key regulator of inflammatory responses, on the immunopotency of MSCs from T2DM patients with advanced atherosclerosis has not been studied. METHODS AND RESULTS MSCs were isolated from adipose tissue obtained from patients with (i) atherosclerosis and T2DM (atherosclerosis+T2DM MSCs, n = 17) and (ii) atherosclerosis without T2DM (atherosclerosis MSCs, n = 17). MSCs from atherosclerosis+T2DM individuals displayed an inflammatory senescent phenotype and constitutively expressed active forms of effectors of the canonical IKKβ nuclear factor-κB transcription factors inflammatory pathway. Importantly, this constitutive pro-inflammatory IKKβ signature resulted in an altered secretome and impaired in vitro immunopotency and in vivo healing capacity in an acute MI model. Notably, treatment with a selective IKKβ inhibitor or IKKβ knockdown (KD) (clustered regularly interspaced short palindromic repeats/Cas9-mediated IKKβ KD) in atherosclerosis+T2DM MSCs reduced the production of pro-inflammatory secretome, increased survival, and rescued their immunopotency both in vitro and in vivo. CONCLUSIONS Constitutively active IKKβ reduces the immunopotency of atherosclerosis+T2DM MSC by changing their secretome composition. Modulation of IKKβ in atherosclerosis+T2DM MSCs enhances their myocardial repair ability.
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Affiliation(s)
- Ozge Kizilay Mancini
- Faculty of Pharmacy, University of Montreal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C 3J7, Canada
| | - David N Huynh
- Faculty of Pharmacy, University of Montreal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C 3J7, Canada
| | - Liliane Menard
- Faculty of Pharmacy, University of Montreal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C 3J7, Canada
| | - Dominique Shum-Tim
- Division of Cardiac Surgery Department of Surgery, McGill University, Montreal, QC H4A 3J1, Canada
- Division of Surgical Research, Department of Surgery, McGill University, Montreal, QC H4A 3J1, Canada
| | - Huy Ong
- Faculty of Pharmacy, University of Montreal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C 3J7, Canada
| | - Sylvie Marleau
- Faculty of Pharmacy, University of Montreal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C 3J7, Canada
| | - Ines Colmegna
- Division of Rheumatology, Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada
| | - Marc J Servant
- Faculty of Pharmacy, University of Montreal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C 3J7, Canada
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14
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Yanik BM, Dauch JR, Cheng HT. Interleukin-10 Reduces Neurogenic Inflammation and Pain Behavior in a Mouse Model of Type 2 Diabetes. J Pain Res 2020; 13:3499-3512. [PMID: 33402846 PMCID: PMC7778525 DOI: 10.2147/jpr.s264136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/29/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose Neurogenic inflammation is a major component of chronic neuropathic pain. Previously, we established the db/db mouse as an animal model of painful diabetic neuropathy (PDN) of type 2 diabetes. In the current study, we investigate the roles of interleukin (IL)-10, an anti-inflammatory cytokine, in the development of neurogenic inflammation and pain behavior in db/db mouse. Materials and Methods We first studied IL-10 expression in lumbar dorsal root ganglion (LDRG) neurons of db/db mice using immunohistochemistry, immunoblots, and reverse transcription polymerase chain reaction during the period of pain behavior (from 8 to 16 wk of age). To determine if the reduced IL-10 expression mediates the mechanical allodynia in db/db mice, we administered recombinant mouse IL-10 or saline (control) intraperitoneally to control db/+ and db/db mice starting at 8 wk of age. IL-10 treatment was repeated every other day for 2 wk until the mice reached 10 wk of age. Results During the period of pain behavior, reduction of IL-10 protein and gene expression was detected in LDRG of db/db mice. Treatment with recombinant IL-10, from 8 to 10 wk of age, alleviates pain behaviors in db/db mice without affecting other diabetic parameters. In parallel, IL-10 treatment reduced the upregulation of nerve growth factor (NGF), inducible nitric oxide synthase (iNOS), tumor necrosis factor (TNF)-α, and high-affinity NGF receptor (Trk A) in LDRG, as well as the numbers of iNOS-positive Langerhans cells and CD-68-positive dermal dendritic cells in the hind-foot-pad skin in db/db mice. Conclusion Our findings suggest that the reduction in neuronal IL-10 increases inflammatory phenomena, ultimately contributing to PDN. These results suggest that the dysregulation of cytokine-mediated inflammation contributes to the development of PDN in db/db mice. Targeting this pathophysiologic mechanism could be an effective approach for treating PDN in type 2 diabetes.
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Affiliation(s)
- Brandon M Yanik
- Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Jacqueline R Dauch
- Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Hsinlin T Cheng
- Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan, USA.,Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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15
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Ray SL, Coulson DJ, Yeoh MLY, Tamara A, Latief JS, Bakhashab S, Weaver JU. The Role of miR-342 in Vascular Health. Study in Subclinical Cardiovascular Disease in Mononuclear Cells, Plasma, Inflammatory Cytokines and PANX2. Int J Mol Sci 2020; 21:ijms21197217. [PMID: 33003647 PMCID: PMC7582278 DOI: 10.3390/ijms21197217] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/06/2020] [Accepted: 08/13/2020] [Indexed: 12/13/2022] Open
Abstract
Cardiovascular disease (CVD) correlates with inflammation and a reduction in circulating endothelial progenitor cells (cEPCs). Recently, CVD was shown to be the main cause of mortality in individuals with type 1 diabetes (T1DM). In animals, miR-342 was shown to exert an anti-inflammatory effect in CVD. Hypothesis: miR-342-3p/-5p are downregulated in subclinical CVD (T1DM), whereas inflammatory cytokines are upregulated. We studied miR -342 -3p/5p in plasma/peripheral blood mononuclear cells (PBMCs) in 29 T1DM and 20 controls (HC). Vascular health was measured by fibronectin adhesion assay (FAA), cEPCs (CD45dimCD34+133+ cells) and by assessing inflammation and tissue inhibition of metalloproteases (TIMP-1). In T1DM IL-7, IL-8, TNFα and VEGF-C were increased in plasma. MiR-342-3p/-5p were downregulated in PBMCs in T1DM, but not in plasma. PANX2, chemokine receptors CXCR1/2 mRNAs, were increased in PBMCs in T1DM. MiR-342-3p was negatively correlated with TIMP-1, IL-6, IL-8, TNF-α, HbA1c and CXCR2, whilst miR-342-5p was negatively correlated with TIMP-1, IL-6, IL-8 and HbA1c. There was a positive correlation among miR-342-3p, FAA and cEPCs, and between miR-342-5p and cEPCs. ROC curve analyses showed significant downregulation of miR-342-3p/-5p at HbA1c > 46.45 mmol/mol, indicating their potential as biomarkers for subclinical CVD. Our findings validated animal studies and confirmed the proangiogenic properties of miR-342-3p/-5p. MiR-342-3p/-5p-based intervention or monitoring may prove to be beneficial in managing CVD.
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Affiliation(s)
- Sabina L. Ray
- Translational & Clinical Research Institute, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK; (S.L.R.); (D.J.C.); (M.L.Y.Y.); (A.T.); (J.S.L.); (S.B.)
| | - David J. Coulson
- Translational & Clinical Research Institute, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK; (S.L.R.); (D.J.C.); (M.L.Y.Y.); (A.T.); (J.S.L.); (S.B.)
| | - Megan Li Yuen Yeoh
- Translational & Clinical Research Institute, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK; (S.L.R.); (D.J.C.); (M.L.Y.Y.); (A.T.); (J.S.L.); (S.B.)
| | - Alice Tamara
- Translational & Clinical Research Institute, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK; (S.L.R.); (D.J.C.); (M.L.Y.Y.); (A.T.); (J.S.L.); (S.B.)
| | - Jevi Septyani Latief
- Translational & Clinical Research Institute, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK; (S.L.R.); (D.J.C.); (M.L.Y.Y.); (A.T.); (J.S.L.); (S.B.)
| | - Sherin Bakhashab
- Translational & Clinical Research Institute, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK; (S.L.R.); (D.J.C.); (M.L.Y.Y.); (A.T.); (J.S.L.); (S.B.)
- Biochemistry Department, King Abdulaziz University, P.O. Box 80218, Jeddah 21589, Saudi Arabia
| | - Jolanta U. Weaver
- Translational & Clinical Research Institute, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK; (S.L.R.); (D.J.C.); (M.L.Y.Y.); (A.T.); (J.S.L.); (S.B.)
- Department of Diabetes, Queen Elizabeth Hospital, Gateshead, Newcastle Upon Tyne NE9 6SH, UK
- Vascular Biology and Medicine Theme, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK
- Correspondence: ; Tel.: +44-(191)-445-2181
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16
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Zhang JR, Sun HJ. Roles of circular RNAs in diabetic complications: From molecular mechanisms to therapeutic potential. Gene 2020; 763:145066. [PMID: 32827686 DOI: 10.1016/j.gene.2020.145066] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 08/17/2020] [Indexed: 02/06/2023]
Abstract
Diabetes is characterized by changed homeostasis of blood glucose levels, which is associated with various complications, including cardiomyopathy, atherosclerosis, endothelial dysfunction, nephropathy, retinopathy and neuropathy. In recent years, accumulative evidence has demonstrated that circular RNAs are identified as a novel type of noncoding RNAs (ncRNAs) involving in the regulation of various physiological processes and pathologic conditions. Specifically, the emergence of complications response to diabetes is finely controlled by a complex gene regulatory network in which circular RNAs play a critical role. Recently, circular RNAs are emerging as messengers that could influence cellular functions under diabetic conditions. Dysregulation of circular RNAs has been closely linked to the pathophysiology of diabetes-related complications. In this review, we aimed to summarize the current progression and underlying mechanisms of circular RNA in the development of diabetes-related complications. We will also provide an overview of circular RNA-regulated cell communications in different types of cells that have been linked to diabetic complications. We anticipated that the completion of this review will provide potential clues for developing novel circular RNAs-based biomarkers or therapeutic targets for diabetes and its associated complications.
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Affiliation(s)
- Ji-Ru Zhang
- Department of Anesthesiology, Affiliated Hospital of Jiangnan University, Wuxi 214062, PR China
| | - Hai-Jian Sun
- Department of Basic Medicine, Wuxi Medical School, Jiangnan University, Wuxi 214122, PR China; Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
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17
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Vinci MC, Gambini E, Bassetti B, Genovese S, Pompilio G. When Good Guys Turn Bad: Bone Marrow's and Hematopoietic Stem Cells' Role in the Pathobiology of Diabetic Complications. Int J Mol Sci 2020; 21:ijms21113864. [PMID: 32485847 PMCID: PMC7312629 DOI: 10.3390/ijms21113864] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 12/15/2022] Open
Abstract
Diabetes strongly contributes to the development of cardiovascular disease, the leading cause of mortality and morbidity in these patients. It is widely accepted that hyperglycemia impairs hematopoietic stem/progenitor cell (HSPC) mobilization from the bone marrow (BM) by inducing stem cell niche dysfunction. Moreover, a recent study demonstrated that type 2 diabetic patients are characterized by significant depletion of circulating provascular progenitor cells and increased frequency of inflammatory cells. This unbalance, potentially responsible for the reduction of intrinsic vascular homeostatic capacity and for the establishment of a low-grade inflammatory status, suggests that bone BM-derived HSPCs are not only victims but also active perpetrators in diabetic complications. In this review, we will discuss the most recent literature on the molecular mechanisms underpinning hyperglycemia-mediated BM dysfunction and differentiation abnormality of HSPCs. Moreover, a section will be dedicated to the new glucose-lowering therapies that by specifically targeting the culprits may prevent or treat diabetic complications.
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Affiliation(s)
- Maria Cristina Vinci
- Unit of Vascular Biology and Regenerative Medicine, IRCCS Centro Cardiologico Monzino, I-20138- Milan, Italy; (E.G.); (B.B.); (G.P.)
- Correspondence: ; Tel.: +39-02-5800-2028
| | - Elisa Gambini
- Unit of Vascular Biology and Regenerative Medicine, IRCCS Centro Cardiologico Monzino, I-20138- Milan, Italy; (E.G.); (B.B.); (G.P.)
| | - Beatrice Bassetti
- Unit of Vascular Biology and Regenerative Medicine, IRCCS Centro Cardiologico Monzino, I-20138- Milan, Italy; (E.G.); (B.B.); (G.P.)
| | - Stefano Genovese
- Unit of Diabetes, Endocrine and Metabolic Diseases, IRCCS Centro Cardiologico Monzino, I-20138- Milan, Italy;
| | - Giulio Pompilio
- Unit of Vascular Biology and Regenerative Medicine, IRCCS Centro Cardiologico Monzino, I-20138- Milan, Italy; (E.G.); (B.B.); (G.P.)
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18
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Li H, Zhan J, Liao B, Wang Y, Liu Y. Plasma levels of adiponectin and chemerin are associated with early stage of atherosclerosis in older adults with type 2 diabetes mellitus. Aging Med (Milton) 2019; 2:198-206. [PMID: 34553107 PMCID: PMC8445043 DOI: 10.1002/agm2.12087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/17/2019] [Accepted: 09/26/2019] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE Adipokines, such as adiponectin and chemerin, regulate fat metabolism and are critical for the development of atherosclerosis. Investigating the correlations of adiponectin and chemerin with atherosclerosis in older adults with type 2 diabetes mellitus (T2DM) will shed light on the search for new markers for early diagnosis of diabetic atherosclerosis. METHODS A total of 120 older T2DM patients and nine healthy controls were enrolled in this study. The clinical parameters, such as brachial-ankle pulse wave velocity (ba-PWV), adiponectin, and chemerin, were examined and recorded. T2DM subjects were divided into three groups according to ba-PWV level (high, medium, or low). The data were processed and analyzed by identical methods. RESULTS Significantly higher chemerin and lower adiponectin levels were detected in the plasma of T2DM patients than in healthy controls. The plasma levels of chemerin and adiponectin were negatively correlated in T2DM patients. Moreover, chemerin and adiponectin were significantly correlated with body mass index, ankle-brachial index, insulin, and ba-PWV. Multiple linear regression analysis revealed that chemerin and adiponectin were independently affecting ba-PWV. CONCLUSION Adiponectin and chemerin are potential markers for diagnosis and monitoring of early stage of atherosclerosis in older adults with T2DM. Further clinical investigations are required to confirm these markers.
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Affiliation(s)
- Huahua Li
- Department of GeriatricsThe Hunan Provincial People's HospitalFirst Affiliated Hospital of Hunan Normal UniversityChangshaChina
| | - Junkun Zhan
- Department of GeriatricsThe Second Xiang‐Ya HospitalInstitute of Aging and Geriatric ResearchCentral South UniversityChangshaChina
| | - Bin Liao
- Department of GeriatricsThe Hunan Provincial People's HospitalFirst Affiliated Hospital of Hunan Normal UniversityChangshaChina
| | - Yanjiao Wang
- Department of GeriatricsThe Second Xiang‐Ya HospitalInstitute of Aging and Geriatric ResearchCentral South UniversityChangshaChina
| | - Youshuo Liu
- Department of GeriatricsThe Second Xiang‐Ya HospitalInstitute of Aging and Geriatric ResearchCentral South UniversityChangshaChina
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19
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Roelands J, Garand M, Hinchcliff E, Ma Y, Shah P, Toufiq M, Alfaki M, Hendrickx W, Boughorbel S, Rinchai D, Jazaeri A, Bedognetti D, Chaussabel D. Long-Chain Acyl-CoA Synthetase 1 Role in Sepsis and Immunity: Perspectives From a Parallel Review of Public Transcriptome Datasets and of the Literature. Front Immunol 2019; 10:2410. [PMID: 31681299 PMCID: PMC6813721 DOI: 10.3389/fimmu.2019.02410] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 09/26/2019] [Indexed: 12/21/2022] Open
Abstract
A potential role for the long-chain acyl-CoA synthetase family member 1 (ACSL1) in the immunobiology of sepsis was explored during a hands-on training workshop. Participants first assessed the robustness of the potential gap in biomedical knowledge identified via an initial screen of public transcriptome data and of the literature associated with ACSL1. Increase in ACSL1 transcript abundance during sepsis was confirmed in several independent datasets. Querying the ACSL1 literature also confirmed the absence of reports associating ACSL1 with sepsis. Inferences drawn from both the literature (via indirect associations) and public transcriptome data (via correlation) point to the likely participation of ACSL1 and ACSL4, another family member, in inflammasome activation in neutrophils during sepsis. Furthermore, available clinical data indicate that levels of ACSL1 and ACSL4 induction was significantly higher in fatal cases of sepsis. This denotes potential translational relevance and is consistent with involvement in pathways driving potentially deleterious systemic inflammation. Finally, while ACSL1 expression was induced in blood in vitro by a wide range of pathogen-derived factors as well as TNF, induction of ACSL4 appeared restricted to flagellated bacteria and pathogen-derived TLR5 agonists and IFNG. Taken together, this joint review of public literature and omics data records points to two members of the acyl-CoA synthetase family potentially playing a role in inflammasome activation in neutrophils. Translational relevance of these observations in the context of sepsis and other inflammatory conditions remain to be investigated.
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Affiliation(s)
- Jessica Roelands
- Sidra Medicine, Doha, Qatar.,Department of Surgery, Leiden University Medical Center, Leiden, Netherlands
| | | | - Emily Hinchcliff
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ying Ma
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Parin Shah
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | | | | | | | | | | | - Amir Jazaeri
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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20
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Guijas C, Bermúdez MA, Meana C, Astudillo AM, Pereira L, Fernández-Caballero L, Balboa MA, Balsinde J. Neutral Lipids Are Not a Source of Arachidonic Acid for Lipid Mediator Signaling in Human Foamy Monocytes. Cells 2019; 8:cells8080941. [PMID: 31434356 PMCID: PMC6721759 DOI: 10.3390/cells8080941] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 08/16/2019] [Accepted: 08/18/2019] [Indexed: 12/13/2022] Open
Abstract
Human monocytes exposed to free arachidonic acid (AA), a secretory product of endothelial cells, acquire a foamy phenotype which is due to the accumulation of cytoplasmic lipid droplets with high AA content. Recruitment of foamy monocytes to the inflamed endothelium contributes to the development of atherosclerotic lesions. In this work, we investigated the potential role of AA stored in the neutral lipids of foamy monocytes to be cleaved by lipases and contribute to lipid mediator signaling. To this end, we used mass spectrometry-based lipidomic approaches combined with strategies to generate monocytes with different concentrations of AA. Results from our experiments indicate that the phospholipid AA pool in monocytes is stable and does not change upon exposure of the cells to the external AA. On the contrary, the AA pool in triacylglycerol is expandable and can accommodate relatively large amounts of fatty acid. Stimulation of the cells with opsonized zymosan results in the expected decreases of cellular AA. Under all conditions examined, all of the AA decreases observed in stimulated cells were accounted for by decreases in the phospholipid pool; we failed to detect any contribution of the triacylglycerol pool to the response. Experiments utilizing selective inhibitors of phospholipid or triacylglyerol hydrolysis confirmed that the phospholipid pool is the sole contributor of the AA liberated by stimulated cells. Thus, the AA in the triacylglycerol is not a source of free AA for the lipid mediator signaling during stimulation of human foamy monocytes and may be used for other cellular functions.
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Affiliation(s)
- Carlos Guijas
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Valladolid, 47003 Valladolid, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain
| | - Miguel A Bermúdez
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Valladolid, 47003 Valladolid, Spain
| | - Clara Meana
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Valladolid, 47003 Valladolid, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain
| | - Alma M Astudillo
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Valladolid, 47003 Valladolid, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain
| | - Laura Pereira
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Valladolid, 47003 Valladolid, Spain
| | - Lidia Fernández-Caballero
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Valladolid, 47003 Valladolid, Spain
| | - María A Balboa
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Valladolid, 47003 Valladolid, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain
| | - Jesús Balsinde
- Instituto de Biología y Genética Molecular, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Valladolid, 47003 Valladolid, Spain.
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain.
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21
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Zhang Y, Zheng Y, Li J, Nie L, Hu Y, Wang F, Liu H, Fernandes SM, Zhong Q, Li X, Schnaar RL, Jia Y. Immunoregulatory Siglec ligands are abundant in human and mouse aorta and are up-regulated by high glucose. Life Sci 2018; 216:189-199. [PMID: 30471282 DOI: 10.1016/j.lfs.2018.11.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 11/18/2018] [Accepted: 11/21/2018] [Indexed: 12/19/2022]
Abstract
AIM Inflammation is a driving force in development of atherosclerosis, and hyperglycemia is a significant risk factor for angiopathy. Siglec-9, expressed on human neutrophils and macrophages, engages specific glycan ligands on tissues to diminish ongoing inflammation. MATERIALS AND METHOD Siglec-9 ligands on human aorta were characterized and the effects of high glucose exposure on the expression of ligands for Siglec-9 on human umbilical vein endothelial cells (HUV-EC-C) in vitro and ligands for the comparable siglec (Siglec-E) on mouse aorta in vivo were studied. KEY FINDINGS Siglec-9 ligands were expressed broadly on human aorta, as well as on HUV-EC-C. Siglec-9 ligands on HUV-EC-C were sharply up-regulated under high glucose exposure in vitro, as were Siglec-E ligands on the aortas of hyperglycemic mice. Exposure of HUV-EC-C to high-glucose resulted in consistent inhibitory changes in co-cultured macrophages including increased apoptosis and decreased phagocytosis. Control of Siglec-9 ligand expression on HUV-EC-C was downstream of changes in an enzyme involved in their biosynthesis, UDP-galactose-4-epimerase (GALE) and increased cellular N-acetylgalactosamine. The alteration of GALE was associated with the regulatory microRNA hsa-let-7f. SIGNIFICANCE We conclude that exposure to high-glucose results in up-regulation of immune inhibitory Siglec-9 sialoglycan ligands on aorta and HUV-EC-C cells downstream of altered GALE and GalNAc expression, resulting in up-regulation of apoptosis and decrease of phagocytic activity of macrophages. Changes in Siglec-9 sialoglycan ligand expression on vascular endothelial cells may be a natural response to the initial steps of atherosclerosis and might be a potential target to regulate inflammation in diabetic angiopathy.
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Affiliation(s)
- Yingxian Zhang
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, ChongQing 400038, China; Department of Pharmacy, The Third Affiliated Hospital, ChongQing Medical University, Yubei, Chongqing 401120, China
| | - Yu Zheng
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, ChongQing 400038, China; Department of Pharmacy, Hainan Western Central Hospital, Danzhou, Hainan 571799, China
| | - Jin Li
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, ChongQing 400038, China
| | - Ling Nie
- Department of Nephrology, Xinqiao Hospital, Third Military Medical University, ChongQing 400037, China
| | - Yijie Hu
- Department of Cardiovascular Surgery, Research Institute of Surgery, Daping Hospital, Third Military Medical University, ChongQing 400042, China
| | - Fangjie Wang
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, ChongQing 400038, China
| | - Hongmei Liu
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, ChongQing 400038, China
| | - Steve M Fernandes
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Qianjin Zhong
- Department of Cardiovascular Surgery, Research Institute of Surgery, Daping Hospital, Third Military Medical University, ChongQing 400042, China
| | - Xiaohui Li
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, ChongQing 400038, China.
| | - Ronald L Schnaar
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
| | - Yi Jia
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Third Military Medical University, ChongQing 400038, China.
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22
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Schiffman C, McHale CM, Hubbard AE, Zhang L, Thomas R, Vermeulen R, Li G, Shen M, Rappaport SM, Yin S, Lan Q, Smith MT, Rothman N. Identification of gene expression predictors of occupational benzene exposure. PLoS One 2018; 13:e0205427. [PMID: 30300410 PMCID: PMC6177191 DOI: 10.1371/journal.pone.0205427] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 09/25/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Previously, using microarrays and mRNA-Sequencing (mRNA-Seq) we found that occupational exposure to a range of benzene levels perturbed gene expression in peripheral blood mononuclear cells. OBJECTIVES In the current study, we sought to identify gene expression biomarkers predictive of benzene exposure below 1 part per million (ppm), the occupational standard in the U.S. METHODS First, we used the nCounter platform to validate altered expression of 30 genes in 33 unexposed controls and 57 subjects exposed to benzene (<1 to ≥5 ppm). Second, we used SuperLearner (SL) to identify a minimal number of genes for which altered expression could predict <1 ppm benzene exposure, in 44 subjects with a mean air benzene level of 0.55±0.248 ppm (minimum 0.203ppm). RESULTS nCounter and microarray expression levels were highly correlated (coefficients >0.7, p<0.05) for 26 microarray-selected genes. nCounter and mRNA-Seq levels were poorly correlated for 4 mRNA-Seq-selected genes. Using negative binomial regression with adjustment for covariates and multiple testing, we confirmed differential expression of 23 microarray-selected genes in the entire benzene-exposed group, and 27 genes in the <1 ppm-exposed subgroup, compared with the control group. Using SL, we identified 3 pairs of genes that could predict <1 ppm benzene exposure with cross-validated AUC estimates >0.9 (p<0.0001) and were not predictive of other exposures (nickel, arsenic, smoking, stress). The predictive gene pairs are PRG2/CLEC5A, NFKBI/CLEC5A, and ACSL1/CLEC5A. They play roles in innate immunity and inflammatory responses. CONCLUSIONS Using nCounter and SL, we validated the altered expression of multiple mRNAs by benzene and identified gene pairs predictive of exposure to benzene at levels below the US occupational standard of 1ppm.
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Affiliation(s)
- Courtney Schiffman
- School of Public Health, University of California, Berkeley, California, United States of America
| | - Cliona M. McHale
- School of Public Health, University of California, Berkeley, California, United States of America
| | - Alan E. Hubbard
- School of Public Health, University of California, Berkeley, California, United States of America
| | - Luoping Zhang
- School of Public Health, University of California, Berkeley, California, United States of America
| | - Reuben Thomas
- School of Public Health, University of California, Berkeley, California, United States of America
| | - Roel Vermeulen
- Institute of Risk assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Guilan Li
- Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Min Shen
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, NCI, NIH, DHHS, Bethesda, Maryland, United States of America
| | - Stephen M. Rappaport
- School of Public Health, University of California, Berkeley, California, United States of America
| | - Songnian Yin
- Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Qing Lan
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, NCI, NIH, DHHS, Bethesda, Maryland, United States of America
| | - Martyn T. Smith
- School of Public Health, University of California, Berkeley, California, United States of America
| | - Nathaniel Rothman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, NCI, NIH, DHHS, Bethesda, Maryland, United States of America
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23
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Guo M, Xiao J, Sheng X, Zhang X, Tie Y, Wang L, Zhao L, Ji X. Ginsenoside Rg3 Mitigates Atherosclerosis Progression in Diabetic apoE-/- Mice by Skewing Macrophages to the M2 Phenotype. Front Pharmacol 2018; 9:464. [PMID: 29867472 PMCID: PMC5954105 DOI: 10.3389/fphar.2018.00464] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 04/20/2018] [Indexed: 11/21/2022] Open
Abstract
Atherosclerosis (AS) in diabetic patients is often associated with low stability, which might be largely attributed to unfavorable macrophage polarization and increased inflammatory response induced by hyperglycaemia. Ginsenoside Rg3 is one of the main active principles of Panax Ginseng, which has been reported to be a natural ligand of peroxisome proliferator-activated receptor-gamma (PPARγ), a key nuclear transcriptional factor involved in inflammation and macrophage differentiation. However, it remains unclear if Rg3 could exert protective effects on plaque stability in diabetes. In this study, we investigated the role of ginsenoside 20(S)-Rg3 in macrophage polarization and AS plaque stability using advanced glycation end products-treated macrophages and diabetic AS mice models. In vitro, advanced glycation end products (AGEs) treatment promoted the expression of proinflammatory molecules and M1 surface markers, whereas 20(S)-Rg3 could reverse the M1 polarization to the M2 phenotype. In vivo, the administration of 20(S)-Rg3 promoted AS lesion stability and reduced the plaque burden, accompanied by increased M2 macrophages and reduced M1 macrophages. In addition, PPARγ antagonist GW9662 co-administration mostly blocked these effects, suggesting the important role of PPARγ pathways in mediating 20(S)-Rg3 effects in macrophage polarization and atherosclerosis progression. Together, these results demonstrated an immunomodulatory role of ginsenoside 20(S)-Rg3 in promoting macrophages to a profile of the M2 type through PPARγ-dependent mechanisms, and indicated a potential role of 20(S)-Rg3 in the prevention and treatment of diabetic atherosclerosis.
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Affiliation(s)
- Mengqi Guo
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Jie Xiao
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Xi Sheng
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Xinyu Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Yuanyuan Tie
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Lei Wang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Lang Zhao
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
| | - Xiaoping Ji
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China
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24
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Dhulekar J, Simionescu A. Challenges in vascular tissue engineering for diabetic patients. Acta Biomater 2018; 70:25-34. [PMID: 29396167 PMCID: PMC5871600 DOI: 10.1016/j.actbio.2018.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/06/2018] [Accepted: 01/09/2018] [Indexed: 12/16/2022]
Abstract
Hyperglycemia and dyslipidemia coexist in diabetes and result in inflammation, degeneration, and impaired tissue remodeling, processes which are not conducive to the desired integration of tissue engineered products into the surrounding tissues. There are several challenges for vascular tissue engineering such as non-thrombogenicity, adequate burst pressure and compliance, suturability, appropriate remodeling responses, and vasoactivity, but, under diabetic conditions, an additional challenge needs to be considered: the aggressive oxidative environment generated by the high glucose and lipid concentrations that lead to the formation of advanced glycation end products (AGEs) in the vascular wall. Extracellular matrix-based scaffolds have adequate physical properties and are biocompatible, however, these scaffolds are altered in diabetes by the formation AGEs and impaired collagen degradation, consequently increasing vascular wall stiffness. In addition, vascular cells detect and respond to altered stimuli from the matrix by pathological remodeling of the vascular wall. Due to the immunomodulatory effects of mesenchymal stem cells (MSCs), they are frequently used in tissue engineering in order to protect the scaffolds from inflammation. MSCs together with antioxidant treatments of the scaffolds are expected to protect the vascular grafts from diabetes-induced alterations. In conclusion, as one of the most daunting environments that could damage the ECM and its interaction with cells is progressively built in diabetes, we recommend that cells and scaffolds used in vascular tissue engineering for diabetic patients are tested in diabetic animal models, in order to obtain valuable results regarding their resistance to diabetic adversities. STATEMENT OF SIGNIFICANCE Almost 25 million Americans have diabetes, characterized by high levels of blood sugar that binds to tissues and disturbs the function of cardiovascular structures. Therefore, patients with diabetes have a high risk of cardiovascular diseases. Surgery is required to replace diseased arteries with implants, but these fail after 5-10 years because they are made of non-living materials, not resistant to diabetes. New tissue engineering materials are developed, based on the patients' own stem cells, isolated from fat, and added to extracellular matrix-based scaffolds. Our main concern is that diabetes could damage the tissue-like implants. Thus we review studies related to the effect of diabetes on tissue components and recommend antioxidant treatments to increase the resistance of implants to diabetes.
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25
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Association of vascular indices with novel circulating biomarkers as prognostic factors for cardiovascular complications in patients with type 2 diabetes mellitus. Clin Biochem 2018; 53:31-37. [DOI: 10.1016/j.clinbiochem.2017.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/15/2017] [Accepted: 12/26/2017] [Indexed: 11/22/2022]
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26
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Yang L, Yang Y, Si D, Shi K, Liu D, Meng H, Meng F. High expression of long chain acyl-coenzyme A synthetase 1 in peripheral blood may be a molecular marker for assessing the risk of acute myocardial infarction. Exp Ther Med 2017; 14:4065-4072. [PMID: 29104625 PMCID: PMC5658692 DOI: 10.3892/etm.2017.5091] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 06/22/2017] [Indexed: 01/10/2023] Open
Abstract
The current study aimed to investigate whether the increased expression of long chain acyl-coenzymeA synthetase 1 (ACSL1) in peripheral blood leukocytes (PBL) may be a molecular marker for the genetic evaluation of acute myocardial infarction (AMI). The mechanism of action of ACSL1 in the pathogenesis of AMI was also investigated. A total of 75 patients with AMI and 70 individuals without coronary heart disease were selected to participate in the present study. The demographic and clinical information of the enrolled subjects was recorded. Reverse transcription quantitative polymerase chain reaction and western blot analysis were applied to measure the expression of ACSL1 at the mRNA and protein levels. It was demonstrated that the expression of ACSL1 mRNA and protein in PBL was increased in patients with AMI compared with controls. Logistic regression analysis indicated that ACSL1 expression in PBL was an independent risk factor of AMI. There was a significant positive association between the level of ACSL1 expression and the degree of atherosclerosis in the coronary artery. Furthermore, patients with AMI exhibited an increased risk of atherosclerosis due to increased fasting blood glucose, total cholesterol, triglyceride and lipoprotein levels and decreased high-density lipoprotein levels, compared with controls. Therefore, the current study demonstrated that ACSL1 expression was increased in the PBLs of patients with AMI. The elevated expression of ACSL1 acts an independent risk factor of AMI and may act as a potential biomarker when determining the risk of AMI.
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Affiliation(s)
- Liping Yang
- Department of Cardiology, The China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Yushuang Yang
- Department of Cardiology, The China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Daoyuan Si
- Department of Cardiology, The China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Kaiyao Shi
- Department of Cardiology, The China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Dongna Liu
- Department of Cardiology, The China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Heyu Meng
- Medical College, Yanbian University, Yanji, Jilin 130002, P.R. China
| | - Fanbo Meng
- Department of Cardiology, The China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
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27
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Fuller KNZ, Summers CM, Valentine RJ. Effect of a single bout of aerobic exercise on high-fat meal-induced inflammation. Metabolism 2017; 71:144-152. [PMID: 28521867 DOI: 10.1016/j.metabol.2017.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 02/27/2017] [Accepted: 03/01/2017] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND AIMS Chronic low-grade inflammation is involved in the development of metabolic disorders including atherosclerosis, type 2 diabetes (T2D) and metabolic syndrome. Aerobic exercise has been shown to be anti-inflammatory and attenuate postprandial blood lipids, however, the effect of exercise on postprandial inflammation remains unclear. The aim of this study was to determine the protective effect of a single bout of aerobic exercise against postprandial lipemia and peripheral blood mononuclear cell (PBMC) inflammation and to evaluate associations with changes in the energy-sensing enzyme, AMP-activated protein kinase (AMPK). MATERIALS AND METHODS Healthy male subjects (n=12, age=23±2, %Fat=19±2) reported to the laboratory following an overnight fast (12-14h) on two separate occasions for consumption of a high-fat meal (HFM). Participants completed an acute bout of aerobic exercise the afternoon prior to one of the HFM visits. RESULTS AND CONCLUSION Results indicate that the single bout of moderate aerobic exercise increased AMPK signaling in PBMCs, as shown by increased phosphorylated acetyl-CoA carboxylase (p-ACC). This may be due to decreases in the AMPK inhibitory kinases PKD and GSK3β. Additionally, prior moderate intensity exercise decreased postprandial lipemia (PPL) and some mediators of the inflammatory pathway, such as p-NF-κB. These findings that acute aerobic exercise improves AMPK and NF-κB signaling in human PBMCs contribute support to the anti-inflammatory roles of exercise.
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Affiliation(s)
- Kelly N Z Fuller
- The Interdepartmental Graduate Program in Nutritional Sciences, Iowa State University, Ames, IA; Department of Kinesiology, Iowa State University, Ames, IA
| | - Corey M Summers
- Department of Kinesiology, Iowa State University, Ames, IA; The Immunobiology Interdepartmental Graduate Program, Iowa State University, Ames, IA
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Sagar S, Parida SR, Sabnam S, Rizwan H, Pal S, Swain MM, Pal A. Increasing NO level regulates apoptosis and inflammation in macrophages after 2-chloroethyl ethyl sulphide challenge. Int J Biochem Cell Biol 2017; 83:1-14. [DOI: 10.1016/j.biocel.2016.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/23/2016] [Accepted: 12/08/2016] [Indexed: 12/19/2022]
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Özcan B, Leenen PJM, Delhanty PJD, Baldéon-Rojas LY, Neggers SJ, van der Lely AJ. Unacylated ghrelin modulates circulating angiogenic cell number in insulin-resistant states. Diabetol Metab Syndr 2017; 9:43. [PMID: 28572856 PMCID: PMC5452348 DOI: 10.1186/s13098-017-0239-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 05/17/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Type 2 diabetes (T2D) is associated with reduced numbers and impaired function of circulating angiogenic cells (CAC) which contributes to the progression of atherosclerosis and microvascular disease. Previous studies suggest that short-term infusion of unacylated ghrelin (UAG) normalizes CAC number in patients with T2D. To determine dose-dependent effects of short-term infusion of UAG in T2D patients using a cross-over model, and of long-term infusion of UAG in obese mice, on differentiation of monocyte progenitors into CAC. METHODS Eight overweight T2D patients were infused overnight with 3 and 10 µg/kg/h of UAG in a double-blind, placebo-controlled cross-over study. To assess the effects of long-term UAG treatment, obese mice were infused with UAG for 4 weeks. Monocyte progenitors were assessed for their ability to differentiate into CAC in vitro. RESULTS In T2D patients, UAG treatment caused a reduction in differentiation of CAC, dependent on UAG dose and differentiation method. However, mice treated with UAG showed a significant increase in differentiation of bone marrow progenitors into CAC. CONCLUSION UAG causes a minor suppressive effect on CAC development after short-term treatment in humans, but experiments in mice suggest that long-term treatment has beneficial effects on CAC formation. The Netherlands Trial Register: TC=2487.
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Affiliation(s)
- Behiye Özcan
- Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands
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Myeloid Cell Prostaglandin E2 Receptor EP4 Modulates Cytokine Production but Not Atherogenesis in a Mouse Model of Type 1 Diabetes. PLoS One 2016; 11:e0158316. [PMID: 27351842 PMCID: PMC4924840 DOI: 10.1371/journal.pone.0158316] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 06/14/2016] [Indexed: 11/19/2022] Open
Abstract
Type 1 diabetes mellitus (T1DM) is associated with cardiovascular complications induced by atherosclerosis. Prostaglandin E2 (PGE2) is often raised in states of inflammation, including diabetes, and regulates inflammatory processes. In myeloid cells, a key cell type in atherosclerosis, PGE2 acts predominately through its Prostaglandin E Receptor 4 (EP4; Ptger4) to modulate inflammation. The effect of PGE2-mediated EP4 signaling specifically in myeloid cells on atherosclerosis in the presence and absence of diabetes is unknown. Because diabetes promotes atherosclerosis through increased arterial myeloid cell accumulation, we generated a myeloid cell-targeted EP4-deficient mouse model (EP4M-/-) of T1DM-accelerated atherogenesis to investigate the relationship between myeloid cell EP4, inflammatory phenotypes of myeloid cells, and atherogenesis. Diabetic mice exhibited elevated plasma PGE metabolite levels and elevated Ptger4 mRNA in macrophages, as compared with non-diabetic littermates. PGE2 increased Il6, Il1b, Il23 and Ccr7 mRNA while reducing Tnfa mRNA through EP4 in isolated myeloid cells. Consistently, the stimulatory effect of diabetes on peritoneal macrophage Il6 was mediated by PGE2-EP4, while PGE2-EP4 suppressed the effect of diabetes on Tnfa in these cells. In addition, diabetes exerted effects independent of myeloid cell EP4, including a reduction in macrophage Ccr7 levels and increased early atherogenesis characterized by relative lesional macrophage accumulation. These studies suggest that this mouse model of T1DM is associated with increased myeloid cell PGE2-EP4 signaling, which is required for the stimulatory effect of diabetes on IL-6, markedly blunts the effect of diabetes on TNF-α and does not modulate diabetes-accelerated atherogenesis.
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Jin X, Liu L, Zhou Z, Ge J, Yao T, Shen C. Pioglitazone alleviates inflammation in diabetic mice fed a high-fat diet via inhibiting advanced glycation end-product-induced classical macrophage activation. FEBS J 2016; 283:2295-308. [PMID: 27062545 DOI: 10.1111/febs.13735] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 02/22/2016] [Accepted: 04/06/2016] [Indexed: 11/30/2022]
Abstract
Classically activated macrophages (M1) are associated with inflammation in diabetic patients. Inflammation is a known risk factor in diabetes. The present study tested the hypothesis that pioglitazone (PIO) alleviates inflammation in diabetic mice fed a high-fat diet by inhibiting advanced glycation end-product (AGE)-induced classical macrophage activation. It was found that AGE treatment promoted the transcription of pro-inflammatory molecules and M1 surface markers, whereas PIO increased the expression of anti-inflammatory genes and decreased the expression of pro-inflammatory mediators in bone marrow-derived macrophages (BMDMs) in a dose-dependent manner. Furthermore, pretreatment with PIO abrogated the effects of AGE on pro-inflammatory markers and partly inhibited AGE-induced nuclear factor-κB (NF-κB) activation. PIO treatment partly reduced the inflammatory phenotype in diabetic ApoE(-/-) mice, and significantly reduced NF-κB activation in plaques. Therefore, we conclude that PIO blocks classical activation of macrophages and attenuates inflammation in mouse models of diabetes.
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Affiliation(s)
- Xian Jin
- Department of Cardiology, Central Hospital of Minhang District, Shanghai, China.,Department of Cardiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Liang Liu
- Department of Cardiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Zhong'e Zhou
- Department of Cardiology, Central Hospital of Minhang District, Shanghai, China.,Department of Cardiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Junhua Ge
- Department of Cardiology, The Affiliated Hospital of Qingdao University, China
| | - Tongqing Yao
- Department of Cardiology, Tongling People's Hospital, China
| | - Chengxing Shen
- Department of Cardiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, China
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Kumar P, Swain MM, Pal A. Hyperglycemia-induced inflammation caused down-regulation of 8-oxoG-DNA glycosylase levels in murine macrophages is mediated by oxidative-nitrosative stress-dependent pathways. Int J Biochem Cell Biol 2016; 73:82-98. [DOI: 10.1016/j.biocel.2016.02.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 02/01/2016] [Accepted: 02/05/2016] [Indexed: 10/22/2022]
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Hamers AAJ, Argmann C, Moerland PD, Koenis DS, Marinković G, Sokolović M, de Vos AF, de Vries CJM, van Tiel CM. Nur77-deficiency in bone marrow-derived macrophages modulates inflammatory responses, extracellular matrix homeostasis, phagocytosis and tolerance. BMC Genomics 2016; 17:162. [PMID: 26932821 PMCID: PMC4774191 DOI: 10.1186/s12864-016-2469-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 02/12/2016] [Indexed: 02/08/2023] Open
Abstract
Background The nuclear orphan receptor Nur77 (NR4A1, TR3, or NGFI-B) has been shown to modulate the inflammatory response of macrophages. To further elucidate the role of Nur77 in macrophage physiology, we compared the transcriptome of bone marrow-derived macrophages (BMM) from wild-type (WT) and Nur77-knockout (KO) mice. Results In line with previous observations, SDF-1α (CXCL12) was among the most upregulated genes in Nur77-deficient BMM and we demonstrated that Nur77 binds directly to the SDF-1α promoter, resulting in inhibition of SDF-1α expression. The cytokine receptor CX3CR1 was strongly downregulated in Nur77-KO BMM, implying involvement of Nur77 in macrophage tolerance. Ingenuity pathway analyses (IPA) to identify canonical pathways regulation and gene set enrichment analyses (GSEA) revealed a potential role for Nur77 in extracellular matrix homeostasis. Nur77-deficiency increased the collagen content of macrophage extracellular matrix through enhanced expression of several collagen subtypes and diminished matrix metalloproteinase (MMP)-9 activity. IPA upstream regulator analyses discerned the small GTPase Rac1 as a novel regulator of Nur77-mediated gene expression. We identified an inhibitory feedback loop with increased Rac1 activity in Nur77-KO BMM, which may explain the augmented phagocytic activity of these cells. Finally, we predict multiple chronic inflammatory diseases to be influenced by macrophage Nur77 expression. GSEA and IPA associated Nur77 to osteoarthritis, chronic obstructive pulmonary disease, rheumatoid arthritis, psoriasis, and allergic airway inflammatory diseases. Conclusions Altogether these data identify Nur77 as a modulator of macrophage function and an interesting target to treat chronic inflammatory disease. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-2469-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Anouk A J Hamers
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. .,Present address: Department of Inflammation Biology, La Jolla Institute for Allergy and Immunology, San Diego, USA.
| | - Carmen Argmann
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. .,Present address: Institute for Genomics and Multiscale Biology Mount Sinai Hospital, New York, USA.
| | - Perry D Moerland
- Bioinformatics Laboratory, Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
| | - Duco S Koenis
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
| | - Goran Marinković
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
| | - Milka Sokolović
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. .,Present address: European Food Information Council, Brussels, Belgium.
| | - Alex F de Vos
- Center for Experimental and Molecular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
| | - Carlie J M de Vries
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
| | - Claudia M van Tiel
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
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Riahi S, Mohammadi MT, Sobhani V, Ababzadeh S. Chronic Aerobic Exercise Decreases Lectin-Like Low Density Lipoprotein (LOX-1) Receptor Expression in Heart of Diabetic Rat. IRANIAN BIOMEDICAL JOURNAL 2015; 20:26-32. [PMID: 26432573 PMCID: PMC4689279 DOI: 10.7508/ibj.2016.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Overexpression of lectin-like low density lipoprotein (LOX-1) receptor plays an important role in hyperglycemia-induced vascular complications such as atherosclerosis. Based on the beneficial effects of exercise on preventing cardiovascular complications of diabetes, we aimed to examine the protective effects of aerobic exercise on expression of LOX-1 receptor and production of free radicals in the heart of diabetic rats. METHODS Four groups of rats were used: (n = 5 per group): sedentary normal, trained normal, sedentary diabetes and trained diabetes. Diabetes was induced by a single intraperitoneal injection of streptozotocin (50 mg/kg). The exercise protocol was consisted of swimming 30 min/day, 5 days/week for eight weeks. Plasma glucose was evaluated at initiation, weeks 4 and 8 of experiment. At the end of experiment, rats were sacrificed and the heart was removed for determination of nitrate, malondialdehyde, and LOX-1 gene expression. RESULTS In normal non-diabetic rats, the blood glucose level was <150 mg/dl; however, the induction of diabetes resulted in levels more than >400 mg/dl. Gene expression of LOX-1 was increased in the heart of diabetic rats. Exercise reduced the gene expression of this protein in diabetic states without reducing the blood glucose. Finally, swimming exercise decreased the malondialdehyde and nitrate levels in heart tissue both in control and diabetic rats. CONCLUSION Swimming exercise reduces heart expression of the LOX-1 receptor in accompany with reduction of free radicals production. Since these parameters are important in generation of diabetic complications, swimming exercise is a good candidate for reducing these complications.
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Affiliation(s)
- Simin Riahi
- Exercise Physiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mohammad Taghi Mohammadi
- Dept. of Physiology and Biophysics, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Vahid Sobhani
- Exercise Physiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Shima Ababzadeh
- Dept. Anatomy, Faculty of Medicine, Qom University of Medical Sciences, Qom, Iran
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Abstract
The risk of cardiovascular events in humans increases in the presence of type 1 or type 2 diabetes mellitus, in large part due to exacerbated atherosclerosis. Genetically engineered mouse models have begun to elucidate cellular and molecular mechanisms responsible for diabetes-exacerbated atherosclerosis. Research on these mouse models has revealed that diabetes independently accelerates initiation and progression of lesions of atherosclerosis and also impairs the regression of lesions following aggressive lipid lowering. Myeloid cell activation in combination with proatherogenic changes allowing for increased monocyte recruitment into arteries of diabetic mice has emerged as an important mediator of the effects of diabetes on the three stages of atherosclerosis. The effects of diabetes on atherosclerosis appear to be dependent on an interplay between glucose and lipids, as well as other factors, and result in increased recruitment of monocytes into both progressing and regressing lesions of atherosclerosis. Importantly, some of the mechanisms revealed by mouse models are now being studied in human subjects. This Perspective highlights new mechanistic findings based on mouse models of diabetes-exacerbated atherosclerosis and discusses the relevance to humans and areas in which more research is urgently needed in order to lessen the burden of macrovascular complications of type 1 and type 2 diabetes mellitus.
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Affiliation(s)
- Karin E Bornfeldt
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition and Department of Pathology, Diabetes and Obesity Center of Excellence, University of Washington School of Medicine, Seattle, WA
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Savić V, Janić M, Lunder M, Kanc K, Janež A, Eržen B, Šabovič M. Long-term improvement of arterial wall characteristics in patients with diabetes mellitus type 1 using cyclic, intermittent treatment with a low-dose fluvastatin and valsartan combination. Exp Ther Med 2015; 10:1207-1211. [PMID: 26622466 DOI: 10.3892/etm.2015.2622] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 06/01/2015] [Indexed: 01/22/2023] Open
Abstract
Improvement of arterial wall (AW) characteristics decreases cardiovascular risk. In a previous study, it was observed that AW characteristics in patients with diabetes mellitus type 1 are significantly improved by short-term treatment with a low-dose combination of fluvastatin and valsartan. Additionally, a unique phenomenon of prolonged effect after treatment discontinuation was suggested. The present study tested whether repeated treatm ent after a certain period results in the same beneficial effect, th ereby advancing the hypothesis that cyclic treatment can provide a long-term improvement of AW characteristics. A total of 44 patients with diabetes mellitus type 1 that participated in the previous study were recruited. Six months after the discontinuation of the initial treatment, the same treatment with a low-dose fluvastatin (10 mg daily) and valsartan (20 mg daily) combination (n=22) or placebo (n=22) was repeated. Brachial artery flow-mediated dilation (FMD), pulse wave velocity (PWV) and carotid artery β-stiffness were measured. It was found that the beneficial effect achieved with an initial 1-month treatment was completely regained following treatment repetition: FMD improved by 50.9% (P<0.01), PWV by 5.7% (P<0.001) and β-stiffness by 9.9% (P<0.001). In addition, a gradual decline of the obtained effects was observed, reaching the level of 9.6% for FM D, 6.3% for PWV and 9.5% for β-stiffness 6 months after treatm ent discontinuation. It was observed that repetition of treatment was similarly effective as the initial intervention. The benefits achieved by treatment steadily declined with time. Combining these findings, cyclic intermittent treatment with a low-dose fluvastatin and valsartan combination is proposed as a new cardiovascular preventive strategy in patients with DM1.
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Affiliation(s)
- Vedran Savić
- Department of Vascular Diseases, Ljubljana University Medical Centre, Ljubljana SI-1000, Slovenia
| | - Miodrag Janić
- Department of Vascular Diseases, Ljubljana University Medical Centre, Ljubljana SI-1000, Slovenia
| | - Mojca Lunder
- Department of Vascular Diseases, Ljubljana University Medical Centre, Ljubljana SI-1000, Slovenia
| | - Karin Kanc
- Diabetes & Me, Private Diabetes Centre, Ljubljana SI-1000, Slovenia
| | - Andrej Janež
- Department of Endocrinology, Diabetes and Metabolic Diseases, Ljubljana University Medical Centre, Ljubljana SI-1000, Slovenia
| | - Barbara Eržen
- Department of Vascular Diseases, Ljubljana University Medical Centre, Ljubljana SI-1000, Slovenia
| | - Mišo Šabovič
- Department of Vascular Diseases, Ljubljana University Medical Centre, Ljubljana SI-1000, Slovenia
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Cooper DE, Young PA, Klett EL, Coleman RA. Physiological Consequences of Compartmentalized Acyl-CoA Metabolism. J Biol Chem 2015; 290:20023-31. [PMID: 26124277 DOI: 10.1074/jbc.r115.663260] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Meeting the complex physiological demands of mammalian life requires strict control of the metabolism of long-chain fatty acyl-CoAs because of the multiplicity of their cellular functions. Acyl-CoAs are substrates for energy production; stored within lipid droplets as triacylglycerol, cholesterol esters, and retinol esters; esterified to form membrane phospholipids; or used to activate transcriptional and signaling pathways. Indirect evidence suggests that acyl-CoAs do not wander freely within cells, but instead, are channeled into specific pathways. In this review, we will discuss the evidence for acyl-CoA compartmentalization, highlight the key modes of acyl-CoA regulation, and diagram potential mechanisms for controlling acyl-CoA partitioning.
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Affiliation(s)
| | | | - Eric L Klett
- From the Departments of Nutrition and Medicine, University of North Carolina, Chapel Hill, North Carolina 27599
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Menegazzo L, Poncina N, Albiero M, Menegolo M, Grego F, Avogaro A, Fadini GP. Diabetes modifies the relationships among carotid plaque calcification, composition and inflammation. Atherosclerosis 2015; 241:533-8. [PMID: 26093886 DOI: 10.1016/j.atherosclerosis.2015.06.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 06/10/2015] [Accepted: 06/10/2015] [Indexed: 01/03/2023]
Abstract
BACKGROUND AND AIMS Diabetes is traditionally associated with vascular calcification, but the molecular mechanisms are largely unknown. We herein explored the relationships among carotid plaque calcification, composition and gene expression, and how these are modified by diabetes. METHODS We collected carotid endoarterectomy specimen from 59 patients, of whom 23 had diabetes. We analysed histology with pentachromic staining, calcification with Alizarin red and Von Kossa's staining, chemical calcium extraction and quantification, as well as gene expression by quantitative PCR. RESULTS We detected no differences in the extent of plaque calcification and in plaque composition between diabetic and non-diabetic patients. In non-diabetic plaques, calcium content was directly correlated with the area occupied by muscle/fibrinoid tissue and inversely correlated with collagen, but such correlations were not seen in plaques from diabetic patients. While consistent correlations were found between calcium content and RUNX2 (direct), as well as Osteopontin (inverse), diabetes modified the association between plaque calcification and inflammatory gene expression. Only in diabetic plaques, calcium content was inversely correlated with MCP1 and IL1b, whereas the direct correlation with TNF-alpha expression seen in non-diabetic plaques was lost in diabetes. CONCLUSIONS Though plaque composition and calcification were not quantitatively affected, diabetes modified the relationships between plaque calcium, composition and inflammation. These results suggest that the mechanisms and the clinical significance of atherosclerotic calcification in diabetic may be different than in non-diabetic patients.
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Affiliation(s)
- Lisa Menegazzo
- Department of Medicine, University of Padova, Padova, Italy; Venetian Institute of Molecular Medicine, Padova, Italy
| | - Nicol Poncina
- Department of Medicine, University of Padova, Padova, Italy; Venetian Institute of Molecular Medicine, Padova, Italy
| | - Mattia Albiero
- Department of Medicine, University of Padova, Padova, Italy; Venetian Institute of Molecular Medicine, Padova, Italy
| | - Mirko Menegolo
- Department of Cardiac, Vascular and Thoracic Sciences, University of Padova, Padova, Italy
| | - Franco Grego
- Department of Cardiac, Vascular and Thoracic Sciences, University of Padova, Padova, Italy
| | - Angelo Avogaro
- Department of Medicine, University of Padova, Padova, Italy; Venetian Institute of Molecular Medicine, Padova, Italy
| | - Gian Paolo Fadini
- Department of Medicine, University of Padova, Padova, Italy; Venetian Institute of Molecular Medicine, Padova, Italy.
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Advanced Glycation End Products Enhance Macrophages Polarization into M1 Phenotype through Activating RAGE/NF-κB Pathway. BIOMED RESEARCH INTERNATIONAL 2015; 2015:732450. [PMID: 26114112 PMCID: PMC4465680 DOI: 10.1155/2015/732450] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 05/12/2015] [Indexed: 01/01/2023]
Abstract
Atherosclerotic lesions are accelerated in patients with diabetes. M1 (classically activated in contrast to M2 alternatively activated) macrophages play key roles in the progression of atherosclerosis. Since advanced glycation end products (AGEs) are major pathogenic factors and active inflammation inducers in diabetes mellitus, this study assessed the effects of AGEs on macrophage polarization. The present study showed that AGEs significantly promoted macrophages to express IL-6 and TNF-α. M1 macrophage markers such as iNOS and surface markers including CD11c and CD86 were significantly upregulated while M2 macrophage markers such as Arg1 and CD206 remained unchanged after AGEs stimulation. AGEs significantly increased RAGE expression in macrophages and activated NF-κB pathway, and the aforementioned effects were partly abolished by administration of anti-RAGE antibody or NF-κB inhibitor PDTC. In conclusion, our results suggest that AGEs enhance macrophage differentiation into proinflammatory M1 phenotype at least partly via RAGE/NF-κB pathway activation.
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Duffy DM. Novel contraceptive targets to inhibit ovulation: the prostaglandin E2 pathway. Hum Reprod Update 2015; 21:652-70. [PMID: 26025453 DOI: 10.1093/humupd/dmv026] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 05/05/2015] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Prostaglandin E2 (PGE2) is an essential intrafollicular regulator of ovulation. In contrast with the one-gene, one-protein concept for synthesis of peptide signaling molecules, production and metabolism of bioactive PGE2 requires controlled expression of many proteins, correct subcellular localization of enzymes, coordinated PGE2 synthesis and metabolism, and prostaglandin transport in and out of cells to facilitate PGE2 action and degradation. Elevated intrafollicular PGE2 is required for successful ovulation, so disruption of PGE2 synthesis, metabolism or transport may yield effective contraceptive strategies. METHODS This review summarizes case reports and studies on ovulation inhibition in women and macaques treated with cyclooxygenase inhibitors published from 1987 to 2014. These findings are discussed in the context of studies describing levels of mRNA, protein, and activity of prostaglandin synthesis and metabolic enzymes as well as prostaglandin transporters in ovarian cells. RESULTS The ovulatory surge of LH regulates the expression of each component of the PGE2 synthesis-metabolism-transport pathway within the ovulatory follicle. Data from primary ovarian cells and cancer cell lines suggest that enzymes and transporters can cooperate to optimize bioactive PGE2 levels. Elevated intrafollicular PGE2 mediates key ovulatory events including cumulus expansion, follicle rupture and oocyte release. Inhibitors of the prostaglandin-endoperoxide synthase 2 (PTGS2) enzyme (also known as cyclooxygenase-2 or COX2) reduce ovulation rates in women. Studies in macaques show that PTGS2 inhibitors can reduce the rates of cumulus expansion, oocyte release, follicle rupture, oocyte nuclear maturation and fertilization. A PTGS2 inhibitor reduced pregnancy rates in breeding macaques when administered to simulate emergency contraception. However, PTGS2 inhibition did not prevent pregnancy in monkeys when administered to simulate monthly contraceptive use. CONCLUSION PTGS2 inhibitors alone may be suitable for use as emergency contraceptives. However, drugs of this class are unlikely to be effective as monthly contraceptives. Inhibitors of additional PGE2 synthesis enzymes or modulation of PGE2 metabolism or transport also hold potential for reducing follicular PGE2 and preventing ovulation. Approaches which target multiple components of the PGE2 synthesis-metabolism-transport pathway may be required to effectively block ovulation and lead to the development of novel contraceptive options for women. Therapies which target PGE2 may also impact disorders of the uterus and could also have benefits for women's health in addition to contraception.
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Affiliation(s)
- Diane M Duffy
- Department of Physiological Sciences, Eastern Virginia Medical School, 700 Olney Road, Lewis Hall, Norfolk, VA 23507, USA
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Abstract
Despite the wealth of pre-clinical support for a role for reactive oxygen and nitrogen species (ROS/RNS) in the aetiology of diabetic complications, enthusiasm for antioxidant therapeutic approaches has been dampened by less favourable outcomes in large clinical trials. This has necessitated a re-evaluation of pre-clinical evidence and a more rational approach to antioxidant therapy. The present review considers current evidence, from both pre-clinical and clinical studies, to address the benefits of antioxidant therapy. The main focus of the present review is on the effects of direct targeting of ROS-producing enzymes, the bolstering of antioxidant defences and mechanisms to improve nitric oxide availability. Current evidence suggests that a more nuanced approach to antioxidant therapy is more likely to yield positive reductions in end-organ injury, with considerations required for the types of ROS/RNS involved, the timing and dosage of antioxidant therapy, and the selective targeting of cell populations. This is likely to influence future strategies to lessen the burden of diabetic complications such as diabetes-associated atherosclerosis, diabetic nephropathy and diabetic retinopathy.
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Joseph R, Poschmann J, Sukarieh R, Too PG, Julien SG, Xu F, Teh AL, Holbrook JD, Ng KL, Chong YS, Gluckman PD, Prabhakar S, Stünkel W. ACSL1 Is Associated With Fetal Programming of Insulin Sensitivity and Cellular Lipid Content. Mol Endocrinol 2015; 29:909-20. [PMID: 25915184 DOI: 10.1210/me.2015-1020] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Individuals who are born small for gestational age (SGA) have a risk to develop various metabolic diseases during their life course. The biological memory of the prenatal state of growth restricted individuals may be reflected in epigenetic alterations in stem cell populations. Mesenchymal stem cells (MSCs) from the Wharton's jelly of umbilical cord tissue are multipotent, and we generated primary umbilical cord MSC isolates from SGA and normal neonates, which were subsequently differentiated into adipocytes. We established chromatin state maps for histone marks H3K27 acetylation and H3K27 trimethylation and tested whether enrichment of these marks was associated with gene expression changes. After validating gene expression levels for 10 significant chromatin immunoprecipitation sequencing candidate genes, we selected acyl-coenzyme A synthetase 1 (ACSL1) for further investigations due to its key roles in lipid metabolism. The ACSL1 gene was found to be highly associated with histone acetylation in adipocytes differentiated from MSCs with SGA background. In SGA-derived adipocytes, the ACSL1 expression level was also found to be associated with increased lipid loading as well as higher insulin sensitivity. ACSL1 depletion led to changes in expression of candidate genes such as proinflammatory chemokines and down-regulated both, the amount of cellular lipids and glucose uptake. Increased ACSL1, as well as modulated downstream candidate gene expression, may reflect the obese state, as detected in mice fed a high-fat diet. In summary, we believe that ACSL1 is a programmable mediator of insulin sensitivity and cellular lipid content and adipocytes differentiated from Wharton's jelly MSCs recapitulate important physiological characteristics of SGA individuals.
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Affiliation(s)
- Roy Joseph
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Jeremie Poschmann
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Rami Sukarieh
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Peh Gek Too
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Sofi G Julien
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Feng Xu
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Ai Ling Teh
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Joanna D Holbrook
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Kai Lyn Ng
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Yap Seng Chong
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Peter D Gluckman
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Shyam Prabhakar
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
| | - Walter Stünkel
- Singapore Institute for Clinical Sciences (R.J., R.S., P.G.T., S.G.J., F.X., A.L.T., J.D.H., Y.S.C., P.D.G., W.S.), Agency for Science, Technology and Research, Singapore 117609; Genome Institute of Singapore (J.P., S.P.), Agency for Science, Technology and Research, Singapore 138672; Department of Obstetrics and Gynaecology (K.L.N., Y.S.C.), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228; and Liggins Institute (P.D.G.), University of Auckland, Auckland 1142, New Zealand
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Abstract
Oxidative stress is considered to play an important role in the pathogenesis of diabetes-induced cardiovascular disease (CVD), which is invariably associated with abnormal blood lipid profile, insulin resistance and metabolic syndrome. Stress, smoking, high saturated fat intake as well as low fruit and vegetable intakes have been shown to increase oxidative stress and hyperlipidemia, which increase the predisposition of diabetic subjects to atherosclerosis, stroke and coronary heart disease. The oxidation of low-density lipoprotein by oxidative stress is essential for the development of atherosclerosis, and the reduction in oxidative stress as well as blood glucose and cholesterol is considered critical for the prevention of diabetes-induced CVD. Although epidemiological studies have demonstrated that vitamin C and vitamin E decrease the incidence of coronary heart disease, different clinical trials have failed to support the beneficial effect of these antioxidants. Nonetheless, it has been suggested that natural forms of these vitamins may be more efficacious than synthetic vitamins, and this may explain the inconsistencies in results. Antioxidants, N-acetyl-L-cysteine and resveratrol, have also been shown to attenuate the diabetes-induced cardiovascular complications. It has been indicated that the antioxidant therapy may be effective in a prevention strategy rather than as a treatment for CVD. The evidence presented here supports the view that cardiovascular complications in diabetes may be induced by oxidative stress and appropriate antioxidant therapy may be promising for attenuating the progression of diabetes-induced CVD.
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Abstract
Long-chain fatty acyl-coenzyme As (CoAs) are critical regulatory molecules and metabolic intermediates. The initial step in their synthesis is the activation of fatty acids by one of 13 long-chain acyl-CoA synthetase isoforms. These isoforms are regulated independently and have different tissue expression patterns and subcellular locations. Their acyl-CoA products regulate metabolic enzymes and signaling pathways, become oxidized to provide cellular energy, and are incorporated into acylated proteins and complex lipids such as triacylglycerol, phospholipids, and cholesterol esters. Their differing metabolic fates are determined by a network of proteins that channel the acyl-CoAs toward or away from specific metabolic pathways and serve as the basis for partitioning. This review evaluates the evidence for acyl-CoA partitioning by reviewing experimental data on proteins that are believed to contribute to acyl-CoA channeling, the metabolic consequences of loss of these proteins, and the potential role of maladaptive acyl-CoA partitioning in the pathogenesis of metabolic disease and carcinogenesis.
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Di Marco E, Gray SP, Chew P, Koulis C, Ziegler A, Szyndralewiez C, Touyz RM, Schmidt HHHW, Cooper ME, Slattery R, Jandeleit-Dahm KA. Pharmacological inhibition of NOX reduces atherosclerotic lesions, vascular ROS and immune-inflammatory responses in diabetic Apoe(-/-) mice. Diabetologia 2014; 57:633-42. [PMID: 24292634 DOI: 10.1007/s00125-013-3118-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 11/06/2013] [Indexed: 01/09/2023]
Abstract
AIMS/HYPOTHESIS Enhanced vascular inflammation, immune cell infiltration and elevated production of reactive oxygen species (ROS) contribute significantly to pro-atherogenic responses in diabetes. We assessed the immunomodulatory role of NADPH oxidase (NOX)-derived ROS in diabetes-accelerated atherosclerosis. METHODS Diabetes was induced in male Apoe(-/-) mice with five daily doses of streptozotocin (55 mg kg(-1) day(-1)). Atherosclerotic plaque size, markers of ROS and immune cell accumulation were assessed in addition to flow cytometric analyses of cells isolated from the adjacent mediastinal lymph nodes (meLNs). The role of NOX-derived ROS was investigated using the NOX inhibitor, GKT137831 (60 mg/kg per day; gavage) administered to diabetic and non-diabetic Apoe(-/-) mice for 10 weeks. RESULTS Diabetes increased atherosclerotic plaque development in the aortic sinus and this correlated with increased lesional accumulation of T cells and CD11c(+) cells and altered T cell activation in the adjacent meLNs. Diabetic Apoe(-/-) mice demonstrated an elevation in vascular ROS production and expression of the proinflammatory markers monocyte chemoattractant protein 1, vascular adhesion molecule 1 and IFNγ. Blockade of NOX-derived ROS using GKT137831 prevented the diabetes-mediated increase in atherosclerotic plaque area and associated vascular T cell infiltration and also significantly reduced vascular ROS as well as markers of inflammation and plaque necrotic core area. CONCLUSIONS/INTERPRETATION Diabetes promotes pro-inflammatory immune responses in the aortic sinus and its associated lymphoid tissue. These changes are associated with increased ROS production by NOX. Blockade of NOX-derived ROS using the NOX inhibitor GKT137831 is associated with attenuation of these changes in the immune response and reduces the diabetes-accelerated development of atherosclerotic plaques in Apoe(-/-) mice.
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Affiliation(s)
- E Di Marco
- Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, PO Box 6429, St Kilda Rd, Melbourne, VIC, 8008, Australia
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Xiao SJ, Fu GJ, Lv YL, Zhong XN, Wang RH. Prevalence and risk factors of fatty liver disease in young and middle-aged population: one center study in Southwestern China. J Gastroenterol Hepatol 2014; 29:358-64. [PMID: 23869713 DOI: 10.1111/jgh.12334] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/04/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIM Fatty liver disease has become common hepatic disease not only in western countries but also in developing countries in Asia-Pacific area. Our aim was to determine the prevalence and risk factors of fatty liver disease as well as its correlation with metabolic syndrome in young and middle-aged population. METHODS Data were collected from check-up center at the 1st Affiliated Hospital of Chongqing Medical University in 2011. Relationships of fatty liver disease and age, body mass index, and metabolic syndrome were determined. Logistic regression was performed to identify the risk factors for fatty liver disease. RESULTS Data of 18 676 subjects (mean age 40.55 ± 9.94 ranging from 18 to 59) were analyzed. The prevalence of fatty liver disease was 22.0% and increased along with age, body mass index, and the presence and severity of metabolic syndrome. In logistic regression, living area was significantly associated with fatty liver in total population. Male, overweight and obese, waist-to-height ratio ≥ 0.5, hypertension, hypercholesterolemia, high triglyceride, low high-density lipoprotein cholesterol, and fasting plasma glucose ≥ 7.0 mmol/L were common independent risk factors for fatty liver disease in urban and rural areas. Older age and white blood cell over 5.5 ×10(9) /L were related to fatty liver disease in urban area. Obesity was the most important factors in both areas. CONCLUSION Fatty liver disease was prevalent in young and middle-aged population and mainly associated to multiple metabolic disorders.
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Affiliation(s)
- Shao-Jun Xiao
- Department of Medical Statistics, School of Public Health, Chongqing, China
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