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Chen X, Huang H, Pu Z, Shi Y, Wang L, Yao S, Cui D. Increased risk of atypical antipsychotics-induced metabolic syndrome associated with MIF CATT >5/6 among females with chronic schizophrenia. Schizophr Res 2024; 270:94-101. [PMID: 38889656 DOI: 10.1016/j.schres.2024.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 03/11/2024] [Accepted: 05/26/2024] [Indexed: 06/20/2024]
Abstract
The utilization of atypical antipsychotics (AAPs) often leads to metabolic syndrome (MetS) in schizophrenia (SZ) patients. Macrophage migration inhibitory factor (MIF) is an important MetS-related cytokine. To investigate the potential association between the MIF-794 CATT5-8 polymorphism and AAP-induced MetS in SZ patients, data from 375 chronic SZ patients who received AAP treatment for a minimum of one year were included. MIF-794 CATT polymorphism genotyping and plasma MIF quantification was performed. The metabolism status of all patients was assessed according to the NCEP-ATP III criteria. Individuals who displayed at least three of the five risk factors (waist circumference, high-density lipoprotein cholesterol, triglycerides, fasting glucose levels, and blood pressure) were diagnosed with MetS. The prevalence of MetS in SZ patients with MIF CATT >5/6 was significantly higher than in those with CATT 5/5-5/6. In female patients, MIF CATT >5/6 was associated with an elevated risk of AAP-induced MetS after adjusting for covariates, particularly regarding abdominal obesity, and the mediating effect of plasma MIF levels was significant. In conclusion, MIF CATT >5/6 increased the risk of AAP-induced MetS among females with chronic SZ. The MIF-794 CATT5-8 microsatellite polymorphism may be a unique indicator for AAP-induced metabolic adverse effects in female SZ patients.
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Affiliation(s)
- Xi Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China
| | - Hongna Huang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China
| | - Zhengping Pu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China; Kangci Hospital of Jiaxing, Jiaxing, China
| | - Yuan Shi
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China
| | - Lijun Wang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China
| | - Shun Yao
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China.
| | - Donghong Cui
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China; Brain Science and Technology Research Center, Shanghai Jiao Tong University, Shanghai, China.
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2
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Takemoto Y, Tanimine N, Yoshinaka H, Tanaka Y, Takafuta T, Sugiyama A, Tanaka J, Ohdan H. Multi-phasic gene profiling using candidate gene approach predict the capacity of specific antibody production and maintenance following COVID-19 vaccination in Japanese population. Front Immunol 2023; 14:1217206. [PMID: 37564647 PMCID: PMC10411726 DOI: 10.3389/fimmu.2023.1217206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 07/07/2023] [Indexed: 08/12/2023] Open
Abstract
Background Vaccination against severe acute respiratory syndrome coronavirus type 2 is highly effective in preventing infection and reducing the severity of coronavirus disease (COVID-19). However, acquired humoral immunity wanes within six months. Focusing on the different tempo of acquisition and attenuation of specific antibody titers in individuals, we investigated the impact of genetic polymorphisms on antibody production after COVID-19 vaccination. Methods In total 236 healthcare workers from a Japanese municipal hospital, who received two doses of the vaccine were recruited. We employed a candidate gene approach to identify the target genetic polymorphisms affecting antibody production after vaccination. DNA samples from the study populations were genotyped for 33 polymorphisms in 15 distinct candidate genes encoding proteins involved in antigen-presenting cell activation, T cell activation, T-B interaction, and B cell survival. We measured total anti-SARS-Cov2 spike IgG antibody titers and analyzed the association with genetic polymorphisms at several time points after vaccination using an unbiased statistical method, and stepwise logistic regression following multivariate regression. Results Significant associations were observed between seven SNPs in NLRP3, OAS1, IL12B, CTLA4, and IL4, and antibody titers at 3 weeks after the first vaccination as an initial response. Six SNPs in NLRP3, TNF, OAS1, IL12B, and CTLA4 were associated with high responders with serum antibody titer > 4000 BAU/ml as boosting effect at 3 weeks after the second vaccination. Analysis of long-term maintenance showed the significance of the three SNPs in IL12B, IL7R, and MIF for the maintenance of antibody titers and that in BAFF for attenuation of neutralizing antibodies. Finally, we proposed a predictive model composed of gene profiles to identify the individuals with rapid antibody attenuation by receiver operating characteristic (ROC) analysis (area under the curve (AUC)= 0.76, sensitivity = 82.5%, specificity=67.8%). Conclusions The candidate gene approach successfully showed shifting responsible gene profiles and initial and boosting effect mainly related to the priming phase into antibody maintenance including B cell survival, which traces the phase of immune reactions. These gene profiles provide valuable information for further investigation of humoral immunity against COVID-19 and for building a strategy for personalized vaccine schedules.
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Affiliation(s)
- Yuki Takemoto
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Naoki Tanimine
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hisaaki Yoshinaka
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yuka Tanaka
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Toshiro Takafuta
- Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Chen L, Yin Z, Qin X, Zhu X, Chen X, Ding G, Sun D, Wu NN, Fei J, Bi Y, Zhang J, Bucala R, Ren J, Zheng Q. CD74 ablation rescues type 2 diabetes mellitus-induced cardiac remodeling and contractile dysfunction through pyroptosis-evoked regulation of ferroptosis. Pharmacol Res 2022; 176:106086. [PMID: 35033649 DOI: 10.1016/j.phrs.2022.106086] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/16/2021] [Accepted: 01/11/2022] [Indexed: 12/17/2022]
Abstract
Type 2 diabetes mellitus (T2D) contributes to sustained inflammation and myopathic changes in the heart although the precise interplay between the two remains largely unknown. This study evaluated the impact of deficiency in CD74, the cognate receptor for the regulatory cytokine macrophage migration inhibitory factor (MIF), in T2D-induced cardiac remodeling and functional responses, and cell death domains involved. WT and CD74-/- mice were fed a high fat diet (60% calorie from fat) for 8 weeks prior to injection of streptozotocin (STZ, 35 mg/kg, i.p., 3 consecutive days) and were maintained for another 8 weeks. KEGG analysis for differentially expressed genes (DEGs) reported gene ontology term related to ferroptosis in T2D mouse hearts. T2D patients displayed elevated plasma MIF levels. Murine T2D exerted overt global metabolic derangements, cardiac remodeling, contractile dysfunction, apoptosis, pyroptosis, ferroptosis and mitochondrial dysfunction, ablation of CD74 attenuated T2D-induced cardiac remodeling, contractile dysfunction, various forms of cell death and mitochondrial defects without affecting global metabolic defects. CD74 ablation rescued T2D-evoked NLRP3-Caspase1 activation and oxidative stress but not dampened autophagy. In vitro evidence depicted that high glucose/high fat (HGHF) compromised cardiomyocyte function and promoted lipid peroxidation, the effects were ablated by inhibitors of NLRP3, pyroptosis, and ferroptosis but not by the mitochondrial targeted antioxidant mitoQ. Recombinant MIF mimicked HGHF-induced lipid peroxidation, GSH depletion and ferroptosis, the effects of which were reversed by inhibitors of MIF, NLRP3 and pyroptosis. Taken together, these data suggest that CD74 ablation protects against T2D-induced cardiac remodeling and contractile dysfunction through NLRP3/pyroptosis-mediated regulation of ferroptosis.
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MESH Headings
- Adult
- Animals
- Antigens, Differentiation, B-Lymphocyte/genetics
- Cell Line
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Experimental/physiopathology
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Diabetes Mellitus, Type 2/physiopathology
- Female
- Ferroptosis
- Gene Expression
- Histocompatibility Antigens Class II/genetics
- Humans
- Macrophage Migration-Inhibitory Factors/blood
- Male
- Mice, Knockout
- Middle Aged
- Myocardial Contraction
- Myocardium/metabolism
- NLR Family, Pyrin Domain-Containing 3 Protein/antagonists & inhibitors
- Oxidative Stress
- Oxygen Consumption
- Pyroptosis
- Rats
- Ventricular Remodeling
- Mice
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Affiliation(s)
- Lin Chen
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Zhiqiang Yin
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Xing Qin
- Department of Cardiology, Xijing Hospital, The Air Force Military Medical University, Xi'an 710032 China
| | - Xiaoying Zhu
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Xu Chen
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Gangbing Ding
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China
| | - Dong Sun
- Department of Cardiology, Xijing Hospital, The Air Force Military Medical University, Xi'an 710032 China
| | - Ne N Wu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Juanjuan Fei
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yaguang Bi
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jingjing Zhang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Richard Bucala
- Department of Medicine, Yale School of Medicine, New Haven, CT 06520 USA
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Laboratory Medicine and Pathology, University of Washington, Seattle 98195, WA, USA.
| | - Qijun Zheng
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Shenzhen 518020, Guangdong, China; The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, Guangdong, China.
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4
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Guarneri M, Scola L, Giarratana RM, Bova M, Carollo C, Vaccarino L, Calandra L, Lio D, Balistreri CR, Cottone S. MIF rs755622 and IL6 rs1800795 Are Implied in Genetic Susceptibility to End-Stage Renal Disease (ESRD). Genes (Basel) 2022; 13:genes13020226. [PMID: 35205271 PMCID: PMC8872268 DOI: 10.3390/genes13020226] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 02/01/2023] Open
Abstract
Chronic kidney disease (CKD) is characterized by an increased risk of kidney failure and end-stage renal disease (ESRD). Aging and comorbidities as cardiovascular diseases, metabolic disorders, infectious diseases, or tumors, might increase the risk of dialysis. In addition, genetic susceptibility factors might modulate kidney damage evolution. We have analyzed, in a group of ESRD patients and matched controls, a set of SNPs of genes (Klotho rs577912, rs564481, rs9536314; FGF23 rs7955866; IGF1 rs35767; TNFA rs1800629; IL6 rs1800795; MIF rs755622, rs1007888) chosen in relation to their possible involvement with renal disease and concomitant pathologies. Analysis of the raw data did indicate that IL6 rs180795 and MIF rs755622 SNPs might be markers of genetic susceptibility to ESRD. In particular, the C positive genotypes of MIF rs755622, (dominant model) seem to be an independent risk factor for ESDR patients (data adjusted for age, gender, and associated pathologies). Stratifying results according to age MIF rs755622 C positive genotype frequencies are increased in both the two age classes considered (<59 and ≥59-year-old subjects). Analyses of data according to gender allowed us to observe that ESRD women shoved a significantly reduced frequency of genotypes bearing IL6 rs180795 C allele. In addition, MIF rs755622 might interact with diabetes or hypercholesterolemia in increasing susceptibility to ESRD. In conclusion, our data indicate that some polymorphisms involved in the regulation of both renal function and inflammatory response can influence the evolution of chronic kidney disease and suggest that the modulation of the activities of these and other genes should also be considered as therapeutic targets on to intervene with innovative therapies.
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Affiliation(s)
- Marco Guarneri
- Unit of Nephrology & Hypertension, European Society of Hypertension Excellence Center, Department of Health Promotion Sciences, Maternal & Infant Care, Internal Medicine & Medical Specialties (PROMISE), University of Palermo, “Paolo Giaccone” University Hospital, 90127 Palermo, Italy; (M.G.); (C.C.); (L.C.); (S.C.)
| | - Letizia Scola
- Clinical Pathology, Department of Bio-Medicine, Neuroscience, and Advanced Diagnostics, University of Palermo, 90100 Palermo, Italy; (L.S.); (R.M.G.); (M.B.); (L.V.); (C.R.B.)
| | - Rosa Maria Giarratana
- Clinical Pathology, Department of Bio-Medicine, Neuroscience, and Advanced Diagnostics, University of Palermo, 90100 Palermo, Italy; (L.S.); (R.M.G.); (M.B.); (L.V.); (C.R.B.)
| | - Manuela Bova
- Clinical Pathology, Department of Bio-Medicine, Neuroscience, and Advanced Diagnostics, University of Palermo, 90100 Palermo, Italy; (L.S.); (R.M.G.); (M.B.); (L.V.); (C.R.B.)
| | - Caterina Carollo
- Unit of Nephrology & Hypertension, European Society of Hypertension Excellence Center, Department of Health Promotion Sciences, Maternal & Infant Care, Internal Medicine & Medical Specialties (PROMISE), University of Palermo, “Paolo Giaccone” University Hospital, 90127 Palermo, Italy; (M.G.); (C.C.); (L.C.); (S.C.)
| | - Loredana Vaccarino
- Clinical Pathology, Department of Bio-Medicine, Neuroscience, and Advanced Diagnostics, University of Palermo, 90100 Palermo, Italy; (L.S.); (R.M.G.); (M.B.); (L.V.); (C.R.B.)
| | - Leonardo Calandra
- Unit of Nephrology & Hypertension, European Society of Hypertension Excellence Center, Department of Health Promotion Sciences, Maternal & Infant Care, Internal Medicine & Medical Specialties (PROMISE), University of Palermo, “Paolo Giaccone” University Hospital, 90127 Palermo, Italy; (M.G.); (C.C.); (L.C.); (S.C.)
| | - Domenico Lio
- Clinical Pathology, Department of Bio-Medicine, Neuroscience, and Advanced Diagnostics, University of Palermo, 90100 Palermo, Italy; (L.S.); (R.M.G.); (M.B.); (L.V.); (C.R.B.)
- Correspondence:
| | - Carmela Rita Balistreri
- Clinical Pathology, Department of Bio-Medicine, Neuroscience, and Advanced Diagnostics, University of Palermo, 90100 Palermo, Italy; (L.S.); (R.M.G.); (M.B.); (L.V.); (C.R.B.)
| | - Santina Cottone
- Unit of Nephrology & Hypertension, European Society of Hypertension Excellence Center, Department of Health Promotion Sciences, Maternal & Infant Care, Internal Medicine & Medical Specialties (PROMISE), University of Palermo, “Paolo Giaccone” University Hospital, 90127 Palermo, Italy; (M.G.); (C.C.); (L.C.); (S.C.)
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5
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Sumaiya K, Langford D, Natarajaseenivasan K, Shanmughapriya S. Macrophage migration inhibitory factor (MIF): A multifaceted cytokine regulated by genetic and physiological strategies. Pharmacol Ther 2021; 233:108024. [PMID: 34673115 DOI: 10.1016/j.pharmthera.2021.108024] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 02/08/2023]
Abstract
Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine encoded within a functionally polymorphic genetic locus. MIF was initially recognized as a cytokine generated by activated T cells, but in recent days it has been identified as a multipotent key cytokine secreted by many other cell types involved in immune response and physiological processes. MIF is a highly conserved 12.5 kDa secretory protein that is involved in numerous biological processes. The expression and secretion profile of MIF suggests that MIF to be ubiquitously and constitutively expressed in almost all mammalian cells and is vital for numerous physiological processes. MIF is a critical upstream mediator of host innate and adaptive immunity and survival pathways resulting in the clearance of pathogens thus playing a protective role during infectious diseases. On the other hand, MIF being an immune modulator accelerates detrimental inflammation, promotes cancer metastasis and progression, thus worsening disease conditions. Several reports demonstrated that genetic and physiological factors, including MIF gene polymorphisms, posttranslational regulations, and receptor binding control the functional activities of MIF. Taking into consideration the multi-faceted role of MIF both in physiology and pathology, we thought it is timely to review and summarize the expressional and functional regulation of MIF, its functional mechanisms associated with its beneficial and pathological roles, and MIF-targeting therapies. Thus, our review will provide an overview on how MIF is regulated, its response, and the potency of the therapies that target MIF.
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Affiliation(s)
- Krishnamoorthi Sumaiya
- Medical Microbiology Laboratory, Department of Microbiology, Centre for Excellence in Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Dianne Langford
- Department of Neural Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Kalimuthusamy Natarajaseenivasan
- Medical Microbiology Laboratory, Department of Microbiology, Centre for Excellence in Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India; Department of Neural Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA..
| | - Santhanam Shanmughapriya
- Heart and Vascular Institute, Department of Medicine, Department of Cellular and Molecular Physiology, Pennsylvania State University, College of Medicine, Hershey PA-17033, USA.
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6
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Tran A, He W, Chen JTC, Wellhauser L, Hopperton KE, Bazinet RP, Belsham DD. Palmitate-mediated induction of neuropeptide Y expression occurs through intracellular metabolites and not direct exposure to proinflammatory cytokines. J Neurochem 2021; 159:574-589. [PMID: 34482548 DOI: 10.1111/jnc.15504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/19/2021] [Accepted: 08/28/2021] [Indexed: 12/11/2022]
Abstract
A contributing factor to the development of obesity is the consumption of a diet high in saturated fatty acids, such as palmitate. These fats induce hypothalamic neuroinflammation, which dysregulates neuronal function and induces orexigenic neuropeptide Y (Npy) to promote food intake. An inflammatory cytokine array identified multiple candidates that could mediate palmitate-induced up-regulation of Npy mRNA levels. Of these, visfatin or nicotinamide phosphoribosyltransferase (NAMPT), macrophage migratory inhibitory factor (MIF), and IL-17F were chosen for further study. Direct treatment of the neuropeptide Y/agouti-related peptide (NPY/AgRP)-expressing mHypoE-46 neuronal cell line with the aforementioned cytokines demonstrated that visfatin could directly induce Npy mRNA expression. Preventing the intracellular metabolism of palmitate through long-chain acyl-CoA synthetase (ACSL) inhibition was sufficient to block the palmitate-mediated increase in Npy gene expression. Furthermore, thin-layer chromatography revealed that in neurons, palmitate is readily incorporated into ceramides and defined species of phospholipids. Exogenous C16 ceramide, dipalmitoyl-phosphatidylcholine, and dipalmitoyl-phosphatidylethanolamine were sufficient to significantly induce Npy expression. This study suggests that the intracellular metabolism of palmitate and elevation of metabolites, including ceramide and phospholipids, are responsible for the palmitate-mediated induction of the potent orexigen Npy. Furthermore, this suggests that the regulation of Npy expression is less reliant on inflammatory cytokines per se than palmitate metabolites in a model of NPY/AgRP neurons. These lipid species likely induce detrimental downstream cellular signaling events ultimately causing an increase in feeding, resulting in an overweight phenotype and/or obesity.
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Affiliation(s)
- Andy Tran
- Department of Physiology, University of Toronto, Ontario, Canada
| | - Wenyuan He
- Department of Physiology, University of Toronto, Ontario, Canada
| | - Jim T C Chen
- Department of Physiology, University of Toronto, Ontario, Canada
| | - Leigh Wellhauser
- Department of Physiology, University of Toronto, Ontario, Canada
| | | | | | - Denise D Belsham
- Department of Physiology, University of Toronto, Ontario, Canada.,Medicine, University of Toronto, Ontario, Canada.,Obstetrics and Gynaecology, University of Toronto, Ontario, Canada
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7
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Averdunk L, Bernhagen J, Fehnle K, Surowy H, Lüdecke HJ, Mucha S, Meybohm P, Wieczorek D, Leng L, Marx G, Leaf DE, Zarbock A, Zacharowski K, Bucala R, Stoppe C. The Macrophage Migration Inhibitory Factor ( MIF) Promoter Polymorphisms (rs3063368, rs755622) Predict Acute Kidney Injury and Death after Cardiac Surgery. J Clin Med 2020; 9:jcm9092936. [PMID: 32932965 PMCID: PMC7565645 DOI: 10.3390/jcm9092936] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/30/2020] [Accepted: 09/01/2020] [Indexed: 02/07/2023] Open
Abstract
Background: Macrophage Migration Inhibitory Factor (MIF) is highly elevated after cardiac surgery and impacts the postoperative inflammation. The aim of this study was to analyze whether the polymorphisms CATT5–7 (rs5844572/rs3063368,“-794”) and G>C single-nucleotide polymorphism (rs755622,-173) in the MIF gene promoter are related to postoperative outcome. Methods: In 1116 patients undergoing cardiac surgery, the MIF gene polymorphisms were analyzed and serum MIF was measured by ELISA in 100 patients. Results: Patients with at least one extended repeat allele (CATT7) had a significantly higher risk of acute kidney injury (AKI) compared to others (23% vs. 13%; OR 2.01 (1.40–2.88), p = 0.0001). Carriers of CATT7 were also at higher risk of death (1.8% vs. 0.4%; OR 5.12 (0.99–33.14), p = 0.026). The GC genotype was associated with AKI (20% vs. GG/CC:13%, OR 1.71 (1.20–2.43), p = 0.003). Multivariate analyses identified CATT7 predictive for AKI (OR 2.13 (1.46–3.09), p < 0.001) and death (OR 5.58 (1.29–24.04), p = 0.021). CATT7 was associated with higher serum MIF before surgery (79.2 vs. 50.4 ng/mL, p = 0.008). Conclusion: The CATT7 allele associates with a higher risk of AKI and death after cardiac surgery, which might be related to chronically elevated serum MIF. Polymorphisms in the MIF gene may constitute a predisposition for postoperative complications and the assessment may improve risk stratification and therapeutic guidance.
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Affiliation(s)
- Luisa Averdunk
- Department of Intensive Care Medicine, University Hospital Aachen, Rheinisch Westphälische Technische Hochschule Aachen, 52074 Aachen, Germany; (L.A.); (G.M.)
- Institute of Human Genetics and Department of Pediatrics, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (H.S.); (H.-J.L.); (D.W.)
| | - Jürgen Bernhagen
- Department of Vascular Biology, Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians-University Munich, 80333 Munich, Germany;
- German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, 10785 Berlin, Germany
- Munich Cluster for Systems Neurology (EXC 2145 SyNergy), 81377 Munich, Germany
| | - Karl Fehnle
- Algora: Statistics and Clinical Research GmbH, 85540 Haar, Germany;
| | - Harald Surowy
- Institute of Human Genetics and Department of Pediatrics, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (H.S.); (H.-J.L.); (D.W.)
| | - Hermann-Josef Lüdecke
- Institute of Human Genetics and Department of Pediatrics, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (H.S.); (H.-J.L.); (D.W.)
| | - Sören Mucha
- Institute of Clinical Molecular Biology, Christian Albrechts University of Kiel, 24118 Kiel, Germany;
- Institute for Cardiogenetics, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Patrick Meybohm
- Department of Anesthesiology, Intensive Care Medicine & Pain Therapy, University Hospital Frankfurt, Goethe University, 60323 Frankfurt, Germany; (P.M.); (K.Z.)
| | - Dagmar Wieczorek
- Institute of Human Genetics and Department of Pediatrics, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (H.S.); (H.-J.L.); (D.W.)
| | - Lin Leng
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA;
| | - Gernot Marx
- Department of Intensive Care Medicine, University Hospital Aachen, Rheinisch Westphälische Technische Hochschule Aachen, 52074 Aachen, Germany; (L.A.); (G.M.)
| | - David E. Leaf
- Division of Renal Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA;
- Harvard Medical School, Boston, MA 02115, USA
| | - Alexander Zarbock
- Intensive Care and Pain Medicine, Department of Anesthesiology, University of Münster, 48149 Münster, Germany;
| | - Kai Zacharowski
- Department of Anesthesiology, Intensive Care Medicine & Pain Therapy, University Hospital Frankfurt, Goethe University, 60323 Frankfurt, Germany; (P.M.); (K.Z.)
| | | | - Richard Bucala
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA;
- Correspondence: (R.B.); (C.S.); Tel.: +49-241-8036575 (R.B. & C.S.); Fax: +49-241-8082406 (R.B. & C.S.)
| | - Christian Stoppe
- Department of Intensive Care Medicine, University Hospital Aachen, Rheinisch Westphälische Technische Hochschule Aachen, 52074 Aachen, Germany; (L.A.); (G.M.)
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Würzburg, 97080 Würzburg, Germany
- Correspondence: (R.B.); (C.S.); Tel.: +49-241-8036575 (R.B. & C.S.); Fax: +49-241-8082406 (R.B. & C.S.)
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Meng F, Li D, Song B, Li L. Impaired Myocardial MIF/AMPK Activation Aggravates Myocardial Ischemia Reperfusion Injury in High-Fat Diet-Induced Obesity. Endocr Metab Immune Disord Drug Targets 2019; 19:1046-1054. [PMID: 30914037 DOI: 10.2174/1871530319666190326143254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 02/28/2019] [Accepted: 03/02/2019] [Indexed: 11/22/2022]
Abstract
Background:
Obese patients are more sensitive to myocardial ischemia, which has been
linked with high mortality rates. The following study investigates the effects of impaired macrophage
Migration Inhibitory Factor (MIF)/AMP-Activated Protein Kinase (AMPK) activation on increased
susceptibility to myocardial ischemia/reperfusion (I/R) in high-fat diet-induced obesity.
Methods:
Male C57BL/6J mice were fed with a normal diet (10% kcal as fat, lean group) or a high-fat
diet (60kcal as fat, obese group) for 12 consecutive weeks. To detect the MIF expression and AMPK
activation in response to I/R in isolated hearts from lean and obese mice, myocardial samples were
collected from left ventricular areas at different time points. To determine whether MIF supplementation
is protective against I/R injury, recombined MIF (10 ng/mL) was applied before ischemia. Myocardial
infarct size was estimated by triphenyltetrazolium staining. Western blot was used to detect
myocardial MIF expression, AMPK activation and membrane glucose transporter 4 (Glut4) expression.
Results:
The expression of MIF was remarkably higher in obese group compared to lean group.
Ischemia increased myocardial MIF expression and phosphorylation of AMPK in lean mice, whereas it
had no significant effect on obese mice. Furthermore, administration of recombinant MIF increased
ischemic AMPK activation and membrane Glut4 expression in both lean and obese mice, while it reduced
the infarct size in lean mice only.
Conclusion:
An impaired MIF/AMPK activation response and consequent reduced membrane Glut4
expression may play an important role in increasing myocardial susceptibility to I/R in obesity.
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Affiliation(s)
- Fanqing Meng
- Department of Anesthesiology, Jinan Maternity and Childcare Hospital, Jinan City, Shandong Province, China
| | - Dongliang Li
- Department of Anesthesiology, Qilu Hospital, Shandong University, Jinan City, Shandong Province, China
| | - Bingfeng Song
- Institute of Basic Medical Sciences, Qilu Hospital, Shandong University, Jinan City, Shandong Province, China
| | - Liang Li
- Department of Anesthesiology, Qilu Hospital, Shandong University, Jinan City, Shandong Province, China
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Stošić-Grujičić S, Saksida T, Miljković Đ, Stojanović I. MIF and insulin: Lifetime companions from common genesis to common pathogenesis. Cytokine 2019; 125:154792. [PMID: 31400637 DOI: 10.1016/j.cyto.2019.154792] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/01/2019] [Accepted: 07/24/2019] [Indexed: 12/19/2022]
Abstract
Pro-inflammatory nature of macrophage migration inhibitory factor (MIF) has been generally related to the propagation of inflammatory and autoimmune diseases. But this molecule possesses many other peculiar functions, unrelated to the immune system, among which is its supportive role in the post-translational modifications of insulin. In this way MIF enables proper insulin conformation within the pancreatic beta cell and its full activity. The inherent or acquired changes in MIF expression might therefore lead to different insulin processing and initiation of autoimmunity. The relation between MIF and insulin does not stop at this point; these two molecules continue to interact during pathological states characterized by inflammation and insulin resistance. In this context, MIF indirectly and negatively influences insulin action by boosting inflammatory environment and disabling target cells to respond to insulin. On the other side, insulin might interfere with MIF action as well, acting as an anti-inflammatory mediator. Therefore, the proper interaction between MIF and insulin is crucial for maintaining homeostasis, while anti-inflammatory therapies based on the systemic MIF blockage may disturb this balance. This review covers MIF-insulin relationship in the physiological and pathological conditions and discusses the approaches for MIF inhibition and their net effect specifically considering possible impact on insulin misfolding and the possible misinterpretation of previous results due to the discovery of MIF functional homolog D-dopachrome tautomerase.
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Affiliation(s)
- Stanislava Stošić-Grujičić
- Department of Immunology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia
| | - Tamara Saksida
- Department of Immunology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia
| | - Đorđe Miljković
- Department of Immunology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia
| | - Ivana Stojanović
- Department of Immunology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia.
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10
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Xu T, Pu S, Ni Y, Gao M, Li X, Zeng X. Elevated plasma macrophage migration inhibitor factor as a risk factor for the development of post-stroke depression in ischemic stroke. J Neuroimmunol 2018; 320:58-63. [PMID: 29759141 DOI: 10.1016/j.jneuroim.2018.04.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 04/02/2018] [Accepted: 04/09/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Macrophage migration inhibitory factor (MIF), a central cytokine of the innate immunity and inflammatory responses, has been reported to link to the pathophysiology of cardiovascular disease and depression. The aim of this study was to test the possible association between plasma MIF and the development of post-stroke depression (PSD) in Chinese patients with acute ischemic stroke (AIS). METHODS The first-ever AIS patients who were hospitalized at Affiliated Hospital of Weifang Medical College during the period from November 2015 to September 2017 were included. Neurological and neuropsychological evaluations were conducted at the 3-month follow-up. Plasma concentrations of MIF were tested by Quantikine Human MIF Immunoassay. Plasma levels of homocysteine (HCY), C-reactive protein (CRP) and Interleukin 6 (IL-6) were also tested. Results were expressed as percentages for categorical variables and as medians (Interquartile range-IQR) for the continuous variables. RESULTS Finally, 333 stroke patients were included, and 95 out of those patients (28.5%) were classified as major depression. In the patients with major depression, plasma levels of MIF were higher compared with those in patients free-depression [27.3(IQR, 23.5-34.9) ng/ml vs. 20.9(IQR, 17.0-24.8) ng/ml; Z = 8.369, P < 0.001]. For each 1unit increase of MIF, the unadjusted and adjusted risk of PSD increased by 18% (odds ratios [OR]: 1.18; 95% confidence interval [CI], 1.13-1.23, P < 0.001) and 11% (1.11; 1.02-1.16, P = 0.001), respectively. In a multivariate model using the elevated levels of MIF (≥median) vs. normal (<median) together with the other significant clinical variables, the marker displayed prognostic information (PSD: OR for fourth quartile, 3.05 [95% CI, 1.65-6.11; P < 0.001]). When MIF was added to the model containing established significant risk factors, Area Under the Receiver Operating Characteristic curve (AUROC; standard error) was increased from 0.81(0.025) to 0.86(0.019). A significant difference in the AUROC between the established risk factors alone and the addition of MIF was observed (difference, 0.05[0.006]; P = 0.004). CONCLUSION The present study demonstrated that elevated plasma levels of MIF at admission were associated with increased risk of PSD in the next three months and might be useful in identifying stroke at risk for PSD for early prevention strategies.
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Affiliation(s)
- Tingting Xu
- School of Clinical medicine of Weifang Medical College, Weifang, China
| | - Shuang Pu
- The Department of Neurology, Affiliated Hospital of Weifang Medical College, Weifang, China
| | - Ying Ni
- The Department of Neurosurgery, Affiliated Hospital of Weifang Medical College, Weifang, China
| | - Mingqing Gao
- The Department of Neurosurgery, Affiliated Hospital of Weifang Medical College, Weifang, China
| | - Xuemei Li
- The Department of Neurology, Affiliated Hospital of Weifang Medical College, Weifang, China
| | - Xianwei Zeng
- The Department of Neurosurgery, Affiliated Hospital of Weifang Medical College, Weifang, China.
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11
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Nikołajuk A, Matulewicz N, Stefanowicz M, Karczewska-Kupczewska M. Serum Matrix Metalloproteinase 9 and Macrophage Migration Inhibitory Factor (MIF) Are Increased in Young Healthy Nonobese Subjects with Positive Family History of Type 2 Diabetes. Int J Endocrinol 2018; 2018:3470412. [PMID: 30302090 PMCID: PMC6158960 DOI: 10.1155/2018/3470412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 08/08/2018] [Indexed: 12/13/2022] Open
Abstract
Insulin resistance increases the risk for cardiovascular disease (CVD) even in the absence of classic risk factors, such as hyperglycemia, hypertension, dyslipidemia, and obesity. Low-grade chronic inflammatory state is associated both with insulin resistance and atherosclerosis. An increased circulating level of proinflammatory proatherogenic factors and biomarkers of endothelial activation was observed in diabetes and CVD. The aim of our study was to assess serum proatherogenic and proinflammatory factors in young healthy nonobese subjects with positive family history of type 2 diabetes. We studied 74 young healthy nonobese subjects with normal glucose tolerance (age < 35 years, BMI < 30 kg/m2), 29 with positive family history of type 2 diabetes (relatives, 25 males and 4 females) and 45 subjects without family history of diabetes (control group, 39 males and 6 females). Hyperinsulinemic-euglycemic clamp was performed, and serum concentrations of monocyte chemoattractant protein-1 (MCP-1), interleukin 18 (IL-18), macrophage inhibitory cytokine 1 (MIC-1), macrophage migration inhibitory factor (MIF), matrix metalloproteinase (MMP-9), and soluble forms of adhesion molecules were measured. Relatives had markedly lower insulin sensitivity (p = 0.019) and higher serum MMP-9 (p < 0.001) and MIF (p = 0.006), but not other chemokines and biomarkers of endothelial function. Insulin sensitivity correlated negatively with serum MMP-9 (r = -0.23, p = 0.045). Our data show that young healthy subjects with positive family history of type 2 diabetes already demonstrate an increase in some nonclassical cardiovascular risk factors.
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Affiliation(s)
- Agnieszka Nikołajuk
- Department of Prophylaxis of Metabolic Diseases, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Natalia Matulewicz
- Department of Metabolic Diseases, Medical University of Białystok, Białystok, Poland
| | - Magdalena Stefanowicz
- Department of Metabolic Diseases, Medical University of Białystok, Białystok, Poland
| | - Monika Karczewska-Kupczewska
- Department of Prophylaxis of Metabolic Diseases, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
- Department of Internal Medicine and Metabolic Disorders, Medical University of Białystok, Białystok, Poland
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12
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Zheng S, Ren X, Han T, Chen Y, Qiu H, Liu W, Hu Y. Fenofibrate attenuates fatty acid-induced islet β-cell dysfunction and apoptosis via inhibiting the NF-κB/MIF dependent inflammatory pathway. Metabolism 2017; 77:23-38. [PMID: 28941594 DOI: 10.1016/j.metabol.2017.09.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Revised: 09/04/2017] [Accepted: 09/05/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Fatty acid-induced lipotoxicity and macrophage migration inhibitory factor (MIF) affect pancreatic β-cell function, and may promote the development of diabetes mellitus. However, the association of lipotoxicity with MIF and the effect of Fenofibrate on β-cell function remain unknown. METHODS LPL+/- mice and MIN6 cells stimulated with palmitic acid (PA) were utilized as models of lipid metabolism disorders. Factors associated with insulin secretion and apoptosis were assessed in the presence or absence of Fenofibrate. The possible mechanisms of lipotoxicity-induced β-cell dysfunction were also explored. RESULTS Fenofibrate effectively improved lipid accumulation in pancreatic β-cells, increased glucose-stimulated insulin secretion and β-cell mass, and significantly downregulated pro-apoptotic molecules, at the gene and protein levels, both in vivo and in vitro. Additionally, elevated MIF levels in serum from LPL+/- mice and PA-treated MIN6 cells were starkly decreased after Fenofibrate administration. Mechanistic analysis indicated that NF-κB signaling was remarkably triggered, which could further activate MIF transcription. Furthermore, Fenofibrate exerted beneficial effects on fatty acid-induced β-cell dysfunction likely by inhibiting the NF-κB/MIF dependent inflammatory response. CONCLUSIONS Fenofibrate ameliorates lipotoxicity-induced β-cell dysfunction and apoptosis by inhibiting the NF-κB/MIF inflammatory pathway. These findings provide novel insights into the treatment of lipotoxicity-induced metabolic disorders.
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Affiliation(s)
- Shuang Zheng
- Department of Endocrinology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Xingxing Ren
- Department of Endocrinology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Tingting Han
- Department of Endocrinology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yawen Chen
- Department of Endocrinology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Huiying Qiu
- Department of Endocrinology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wei Liu
- Department of Endocrinology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.
| | - Yaomin Hu
- Department of Endocrinology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.
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13
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Hirschfeld J, Howait M, Movila A, Parčina M, Bekeredjian-Ding I, Deschner J, Jepsen S, Kawai T. Assessment of the involvement of the macrophage migration inhibitory factor-glucocorticoid regulatory dyad in the expression of matrix metalloproteinase-2 during periodontitis. Eur J Oral Sci 2017; 125:345-354. [PMID: 28776753 DOI: 10.1111/eos.12363] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine and counter-regulator of endogenous glucocorticoids (GCs). It is implicated in acute and chronic inflammatory diseases. This study investigated the role of the MIF-GC regulatory dyad in the expression and release of matrix metalloproteinase-2 (MMP-2) during periodontitis, in vivo and in vitro. In a Mif-knockout (KO) mouse model of ligature-induced periodontitis, gingival tissues and blood were collected and analysed for levels of interleukin-6 (IL-6), MIF, MMP-2, and corticosterone. In addition, human gingival fibroblasts (HGFs) were tested for production of IL-6 and MMP-2 after stimulation with hydrocortisone (HC), MIF, tumour necrosis factor-alpha (TNF-α), or Fusobacterium nucleatum, a pathogen known to elicit immune responses during periodontitis. Wild-type (WT) mice showed a local and systemic increase of MIF levels during inflammation, which was confirmed by increased local IL-6 concentrations. Systemic GC levels were reduced in WT and Mif-KO mice during inflammation, with overall lower concentrations in Mif-KO mice. In vivo and in vitro, MMP-2 production was not dependent on MIF or inflammatory stimuli, but was inhibited by HC. Therefore, MIF does not appear to stimulate expression of MMP-2 in the gingival tissues, whereas GC upregulates MIF and downregulates MMP-2. Our findings further suggest that MIF may regulate systemic GC levels.
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Affiliation(s)
- Josefine Hirschfeld
- Department of Periodontology, Operative and Preventive Dentistry, University Hospital Bonn, Bonn, Germany.,Periodontal Research Group, Birmingham Dental School and Hospital, Birmingham, UK
| | - Mohammed Howait
- Faculty of Dentistry, Department of Endodontics, King AbdulAziz University, Jeddah, Saudi Arabia.,Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - Alexandru Movila
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,Harvard University School of Dental Medicine, Boston, MA, USA.,Academy of Sciences of Moldova, Institute of Zoology, Chisinau, Moldova
| | - Marijo Parčina
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| | - Isabelle Bekeredjian-Ding
- Institute of Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany.,Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany
| | - James Deschner
- Section Experimental Dento-Maxillo-Facial Medicine, University Hospital Bonn, Bonn, Germany
| | - Søren Jepsen
- Department of Periodontology, Operative and Preventive Dentistry, University Hospital Bonn, Bonn, Germany
| | - Toshihisa Kawai
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
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14
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Onat A, Ademoğlu E, Can G, Çoban N, Kaya A, Yüksel H. Lower circulating migration inhibitory factor protein is associated with metabolic syndrome and diabetes. Biomark Med 2017; 11:557-568. [DOI: 10.2217/bmm-2016-0359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: The controversial relationship between macrophage migration inhibitory factor (MIF) and the likelihood of cardiometabolic diseases was investigated. Results/methodology: Assayed MIF protein from 1225 adults was cross-sectionally analyzed. MIF was independently inversely associated with age, total testosterone and positively with high-density lipoprotein-cholesterol. In men MIF correlation with age, testosterone and waist circumference converted from inverse in the upper to positive in the bottom MIF third. Both metabolic syndrome and diabetes were significantly associated, in combined gender, with the intermediate (vs the highest) MIF tertile at an odds ratio 1.6. Coronary heart disease was not significantly related with MIF in either gender. Discussion/conclusion: Findings are consistent with oxidative damage to MIF protein and its involvement in autoimmune activation, likely more extensive in women.
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Affiliation(s)
- Altan Onat
- Department of Cardiology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Evin Ademoğlu
- Department of Biochemistry, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Günay Can
- Department of Public Health, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Neslihan Çoban
- Department of Genetics, Institute for Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Ayşem Kaya
- Department of Biochemistry Section, Institute of Cardiology, Istanbul University, Istanbul, Turkey
| | - Hüsniye Yüksel
- Department of Cardiology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
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Chang Y, Shah T, Min DI. Association of genetic polymorphisms of macrophage inhibitory factor (MIF) and B-cell activating factor (BAFF) with the detection of donor specific antibodies in kidney allograft recipients. Hum Immunol 2017. [PMID: 28624489 DOI: 10.1016/j.humimm.2017.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The posttransplant development of donor specific antibodies (DSA) initiates the antibody mediated rejection (AMR), which is associated with the increased rate of graft loss. One of the characteristics of AMR is the infiltration of innate immune system including macrophages, monocytes, neutrophils or NK cells. Macrophage inhibitory factor (MIF) and B-cell activating factor (BAFF) are well known cytokines that are associated with the activation of the innate immune system which can damage kidney allograft. In this article, the association of the genetic polymorphisms of MIF and BAFF with the development of DSA including Class I and II in kidney transplant patients is investigated. A total of 231 renal transplant patients between 2008 and 2012 at St. Vincent Medical Center, CA were studied in a retrospective study design. DSA were determined by Luminex technology, and single nucleotide polymorphisms (SNP) of MIF and BAFF were determined by the real time PCR based on 5' nuclease allelic discrimination assay. The genetic polymorphisms of MIF rs1007888 (C/T) was associated with increased risk of positive DSA detection (p=0.04) after transplantation, and consistently significant after 1year (p=0.016). Furthermore, the presence of C allele were associated with the increased risk of Class I DSA detection (OR 1.816, CI 1.141-2.889, p=0.011). Also, genetic polymorphisms of BAFF rs12583006 were associated with the increased risk of Class II DSA detection (p=0.033). In conclusion, the genetic polymorphisms of MIF and BAFF may increase the risk of posttransplant development of DSA. This result suggests the association between the development of posttransplant DSA and the activation of innate immune system.
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Affiliation(s)
- Youngil Chang
- Mendez National Institute of Transplantation, Los Angeles, CA, United States; Western University of Health Sciences, Pomona, CA, United States.
| | - Tariq Shah
- Mendez National Institute of Transplantation, Los Angeles, CA, United States; Western University of Health Sciences, Pomona, CA, United States; St. Vincent Medical Center, Los Angeles, CA, United States.
| | - David I Min
- Western University of Health Sciences, Pomona, CA, United States.
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Calan M, Kume T, Yilmaz O, Arkan T, Kocabas GU, Dokuzlar O, Aygün K, Oktan MA, Danıs N, Temur M. A possible link between luteinizing hormone and macrophage migration inhibitory factor levels in polycystic ovary syndrome. Endocr Res 2016; 41:261-9. [PMID: 26913980 DOI: 10.3109/07435800.2015.1135442] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
PURPOSE Macrophage migration inhibitory factor (MIF) is a multifunctional cytokine that plays a role in metabolic and inflammatory processes. Increasing evidence suggests that there is a link between MIF and ovulation. We aimed to evaluate plasma MIF levels in women with polycystic ovary syndrome (PCOS) and to determine whether MIF levels differ between the follicular phase and mid-cycle of the menstrual cycle in eumenorrheic women. METHODS Ninety women with PCOS and 80 age- and BMI-matched healthy eumenorrheic women were consecutively recruited into this prospective observational study. For all subjects, plasma MIF levels in the early follicular phase were measured by ELISA; for the 40 healthy controls, MIF levels were also measured during mid-cycle of the same menstrual cycle. RESULTS Plasma MIF levels were significantly higher in women with PCOS than in eumenorrheic women (14.16 ± 1.59 vs. 10.39 ± 0.70 ng/ml; p < 0.001). MIF levels were significantly higher at mid-cycle than in the follicular phase in eumenorrheic women (11.15 ± 0.61 vs. 10.56 ± 0.82 ng/ml; p < 0.001). MIF was positively correlated with BMI, high sensitivity C-reactive protein (hs-CRP), and homeostasis model assessment of insulin resistance (HOMA-IR) in both groups. MIF was positively correlated with luteinizing hormone (LH) and free-testosterone only in the PCOS group. Binary logistic regression analyses revealed that the odds ratio (OR) for PCOS independently increases linearly with elevated MIF (OR = 1.385, 95% CI = 1.087-1.764, p = 0.017). CONCLUSION MIF may play a crucial role in the reproductive system in women, including the development of PCOS and normal ovulation.
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Affiliation(s)
- Mehmet Calan
- a Division of Endocrinology and Metabolism, Department of Internal Medicine , Dokuz Eylul University Medical School , Izmir , Turkey
| | - Tuncay Kume
- b Department of Medical Biochemistry , Dokuz Eylul University Medical School , Izmir , Turkey
| | - Ozgur Yilmaz
- c Department of Obstetrics and Gynecology , Manisa Merkezefendi Hospital , Manisa , Turkey
| | - Tugba Arkan
- a Division of Endocrinology and Metabolism, Department of Internal Medicine , Dokuz Eylul University Medical School , Izmir , Turkey
| | - Gokcen Unal Kocabas
- d Division of Endocrinology and Metabolism, Department of Internal Medicine , Izmir Bozyaka Training and Research Hospital , Izmir , Turkey
| | - Ozge Dokuzlar
- e Department of Internal Medicine , Dokuz Eylul University Medical School , Izmir , Turkey
| | - Kemal Aygün
- e Department of Internal Medicine , Dokuz Eylul University Medical School , Izmir , Turkey
| | - Mehmet Asi Oktan
- e Department of Internal Medicine , Dokuz Eylul University Medical School , Izmir , Turkey
| | - Nilay Danıs
- e Department of Internal Medicine , Dokuz Eylul University Medical School , Izmir , Turkey
| | - Muzaffer Temur
- c Department of Obstetrics and Gynecology , Manisa Merkezefendi Hospital , Manisa , Turkey
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17
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Luo JY, Xu R, Li XM, Zhou Y, Zhao Q, Liu F, Chen BD, Ma YT, Gao XM, Yang YN. MIF Gene Polymorphism rs755622 Is Associated With Coronary Artery Disease and Severity of Coronary Lesions in a Chinese Kazakh Population: A Case-Control Study. Medicine (Baltimore) 2016; 95:e2617. [PMID: 26825917 PMCID: PMC5291587 DOI: 10.1097/md.0000000000002617] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Inflammation plays an important role in the pathogenesis of atherosclerosis. Recent studies indicate that macrophage migration inhibitory factor (MIF) is a potent proinflammatory cytokine which mediates the inflammatory process during atherosclerosis. The polymorphism of MIF gene (rs755622 [-173G/C], rs1007888, and rs2096525) were genotyped by TaqMan single nucleotide polymorphism (SNP) genotyping assay in 320 patients with coronary artery disease (CAD) and 603 controls in a Chinese Kazakh population. Coronary angiography was performed on all CAD patients and Gensini score was used to assess the severity of coronary artery lesions. The frequency of the CC genotype and C allele of rs755622 were significantly higher in CAD patients than that in control subjects (8.4% vs. 5.1%, P < 0.001, 30.3% vs. 22.1%, P < 0.001, respectively). Multivariate logistic regression analysis showed that individuals with CC genotype or C allele had a higher risk for CAD (CC genotype vs. GG genotype, OR = 2.224, 95% CI, 1.239-3.992, P = 0.007, and C allele vs. G allele, OR = 1.473, 95% CI, 1.156-1.876, P = 0.002, respectively). Moreover, CAD patients with rs755622 C allele (CC + CG genotype) have higher levels of Gensini score when compared to C allele noncarriers (32.74 ± 26.66 vs. 21.44 ± 19.40, P < 0.001, adjusted). Our results suggested that the CC genotype and C allele of MIF rs755622 SNP may be a genetic marker for the risk of CAD and potentially predict the severity of CAD in Chinese Kazakh population.
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Affiliation(s)
- Jun-Yi Luo
- From the Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (J-YL, X-ML, YZ, QZ, Y-TM, Y-NY); Xinjiang Key Laboratory of Cardiovascular Disease Research, Urumqi, Xinjiang, China (J-YL, X-ML, FL, B-DC, Y-TM, X-MG, Y-NY); Department of Cadres Health, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China (RX); Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (X-MG); Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia (X-MG); and Department of Surgery, Central Clinical School, Monash University, Melbourne, Victoria, Australia (X-MG)
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Abbasi A. Mendelian randomization studies of biomarkers and type 2 diabetes. Endocr Connect 2015; 4:249-60. [PMID: 26446360 PMCID: PMC4654400 DOI: 10.1530/ec-15-0087] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 10/07/2015] [Indexed: 12/16/2022]
Abstract
Many biomarkers are associated with type 2 diabetes (T2D) risk in epidemiological observations. The aim of this study was to identify and summarize current evidence for causal effects of biomarkers on T2D. A systematic literature search in PubMed and EMBASE (until April 2015) was done to identify Mendelian randomization studies that examined potential causal effects of biomarkers on T2D. To replicate the findings of identified studies, data from two large-scale, genome-wide association studies (GWAS) were used: DIAbetes Genetics Replication And Meta-analysis (DIAGRAMv3) for T2D and the Meta-Analyses of Glucose and Insulin-related traits Consortium (MAGIC) for glycaemic traits. GWAS summary statistics were extracted for the same genetic variants (or proxy variants), which were used in the original Mendelian randomization studies. Of the 21 biomarkers (from 28 studies), ten have been reported to be causally associated with T2D in Mendelian randomization. Most biomarkers were investigated in a single cohort study or population. Of the ten biomarkers that were identified, nominally significant associations with T2D or glycaemic traits were reached for those genetic variants related to bilirubin, pro-B-type natriuretic peptide, delta-6 desaturase and dimethylglycine based on the summary data from DIAGRAMv3 or MAGIC. Several Mendelian randomization studies investigated the nature of associations of biomarkers with T2D. However, there were only a few biomarkers that may have causal effects on T2D. Further research is needed to broadly evaluate the causal effects of multiple biomarkers on T2D and glycaemic traits using data from large-scale cohorts or GWAS including many different genetic variants.
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Affiliation(s)
- Ali Abbasi
- MRC Epidemiology UnitUniversity of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Addenbrooke's Hospital, Post Box 285, Cambridge CB2 0QQ, UKDepartment of Epidemiology and Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands MRC Epidemiology UnitUniversity of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Addenbrooke's Hospital, Post Box 285, Cambridge CB2 0QQ, UKDepartment of Epidemiology and Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Liang Y, Yuan W, Zhu W, Zhu J, Lin Q, Zou X, Deng C, Fu Y, Zheng X, Yang M, Wu S, Yu X, Shan Z. Macrophage migration inhibitory factor promotes expression of GLUT4 glucose transporter through MEF2 and Zac1 in cardiomyocytes. Metabolism 2015; 64:1682-93. [PMID: 26455966 DOI: 10.1016/j.metabol.2015.09.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 08/20/2015] [Accepted: 09/08/2015] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Evidence shows that both macrophage migration inhibitory factor (MIF) and GLUT4 glucose transporter are involved in diabetic cardiomyopathy (DCM), but it remains largely unknown whether and how MIF regulates GLUT4 expression in cardiomyocytes. The present study aims to investigate the mechanism underlying the modulation of GLUT4 by MIF in cardiomyocytes. MATERIAL AND METHODS Activations of AKT and AMPK signaling, and expressions of MIF, GLUT4 and the candidate GLUT4 regulation associated transcription factors in the diabetic mouse myocardium were determined. The screened transcription factors mediating MIF-promoted GLUT4 expression were verified by RNA interference (RNAi) and electrophoretic mobility shift assay (EMSA), respectively. RESULTS MIF was increased, but GLUT4 was decreased in the diabetic mouse myocardium. MIF could enhance glucose uptake and up-regulate GLUT4 expression in NMVCs. Expressions of transcription factor MEF2A, -2C, -2D and Zac1 were significantly up-regulated in MIF-treated neonatal mouse ventricular cardiomyocytes (NMVCs), and markedly reduced in the diabetic myocardium. Knockdown of MEF2A, -2C, -2D and Zac1 could significantly inhibit glucose uptake and GLUT4 expression in cardiomyocytes. Moreover, EMSA results revealed that transcriptional activities of MEF2 and Zac1 were significantly increased in MIF-treated NMVCs. AMPK signaling was activated in MIF-stimulated NMVCs, and AMPK activator AICAR could enhance MEF2A, -2C, -2D, Zac1 and GLUT4 expression. Additionally, MIF effects were inhibited by an AMPK inhibitor compound C and siRNA targeting MIF receptor CD74, suggesting the involvement of CD74-dependent AMPK activation. CONCLUSIONS Transcription factor MEF2 and Zac1 mediate MIF-induced GLUT4 expression through CD74-dependent AMPK activation in cardiomyocytes.
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Affiliation(s)
- Yeyou Liang
- Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, China.
| | - Weiwei Yuan
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Wensi Zhu
- Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, China.
| | - Jiening Zhu
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Qiuxiong Lin
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Xiao Zou
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Chunyu Deng
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Yongheng Fu
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Xilong Zheng
- The Libin Cardiovascular Institute of AB, Department of Biochemistry & Molecular Biology, Cumming School of Medicine, The University of Calgary, Calgary, Canada.
| | - Min Yang
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Shulin Wu
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Xiyong Yu
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Zhixin Shan
- Medical Research Center of Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, China.
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Morrison MC, Kleemann R. Role of Macrophage Migration Inhibitory Factor in Obesity, Insulin Resistance, Type 2 Diabetes, and Associated Hepatic Co-Morbidities: A Comprehensive Review of Human and Rodent Studies. Front Immunol 2015; 6:308. [PMID: 26124760 PMCID: PMC4467247 DOI: 10.3389/fimmu.2015.00308] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 05/29/2015] [Indexed: 12/16/2022] Open
Abstract
Obesity is associated with a chronic low-grade inflammatory state that drives the development of obesity-related co-morbidities such as insulin resistance/type 2 diabetes, non-alcoholic fatty liver disease (NAFLD), and cardiovascular disease. This metabolic inflammation is thought to originate in the adipose tissue, which becomes inflamed and insulin resistant when it is no longer able to expand in response to excess caloric and nutrient intake. The production of inflammatory mediators by dysfunctional adipose tissue is thought to drive the development of more complex forms of disease such as type 2 diabetes and NAFLD. An important factor that may contribute to metabolic inflammation is the cytokine macrophage migration inhibitory factor (MIF). Increasing evidence suggests that MIF is released by adipose tissue in obesity and that it is also involved in metabolic and inflammatory processes that underlie the development of obesity-related pathologies. This review provides a comprehensive summary of our current knowledge on the role of MIF in obesity, its production by adipose tissue, and its involvement in the development of insulin resistance, type 2 diabetes, and NAFLD. We discuss the main findings from recent clinical studies in obese subjects and weight-loss intervention studies as well as results from clinical studies in patients with insulin resistance and type 2 diabetes. Furthermore, we summarize findings from experimental disease models studying the contribution of MIF in obesity and insulin resistance, type 2 diabetes, and hepatic lipid accumulation and fibrosis. Although many of the findings support a pro-inflammatory role of MIF in disease development, recent reports also provide indications that MIF may exert protective effects under certain conditions.
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Affiliation(s)
- Martine C Morrison
- Department of Metabolic Health Research, Netherlands Organization for Applied Scientific Research (TNO) , Leiden , Netherlands
| | - Robert Kleemann
- Department of Metabolic Health Research, Netherlands Organization for Applied Scientific Research (TNO) , Leiden , Netherlands ; Department of Human and Animal Physiology, Wageningen University , Wageningen , Netherlands
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Erdos B, Clifton RR, Liu M, Li H, McCowan ML, Sumners C, Scheuer DA. Novel mechanism within the paraventricular nucleus reduces both blood pressure and hypothalamic pituitary-adrenal axis responses to acute stress. Am J Physiol Heart Circ Physiol 2015; 309:H634-45. [PMID: 26071542 DOI: 10.1152/ajpheart.00207.2015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 06/05/2015] [Indexed: 02/07/2023]
Abstract
Macrophage migration inhibitory factor (MIF) counteracts pressor effects of angiotensin II (ANG II) in the paraventricular nucleus of the hypothalamus (PVN) in normotensive rats, but this mechanism is absent in spontaneously hypertensive rats (SHRs) due to a lack of MIF in PVN neurons. Since endogenous ANG II in the PVN modulates stress reactivity, we tested the hypothesis that replacement of MIF in PVN neurons would reduce baseline blood pressure and inhibit stress-induced increases in blood pressure and plasma corticosterone in adult male SHRs. Radiotelemetry transmitters were implanted to measure blood pressure, and then an adeno-associated viral vector expressing either enhanced green fluorescent protein (GFP) or MIF was injected bilaterally into the PVN. Cardiovascular responses to a 15-min water stress (1-cm deep, 25°C) and a 60-min restraint stress were evaluated 3-4 wk later. MIF treatment in the PVN attenuated average restraint-induced increases in blood pressure (37.4 ± 2.0 and 27.6 ± 3.5 mmHg in GFP and MIF groups, respectively, P < 0.05) and corticosterone (42 ± 2 and 36 ± 3 μg/dl in GFP and MIF groups, respectively, P < 0.05). MIF treatment in the PVN also reduced stress-induced elevations in the number of c-Fos-positive cells in the rostral ventrolateral medulla (71 ± 5 in GFP and 47 ± 5 in MIF SHRs, P < 0.01) and corticotropin-releasing factor mRNA expression in the PVN. However, MIF had no significant effects on the cardiovascular responses to water stress in SHRs or to either stress in Sprague-Dawley rats. Therefore, viral vector-mediated restoration of MIF in PVN neurons of SHRs attenuates blood pressure and hypothalamic pituitary adrenal axis responses to stress.
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Affiliation(s)
- Benedek Erdos
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, Gainesville, Florida
| | - Rebekah R Clifton
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, Gainesville, Florida
| | - Meng Liu
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, Gainesville, Florida
| | - Hongwei Li
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, Gainesville, Florida
| | - Michael L McCowan
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, Gainesville, Florida
| | - Colin Sumners
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, Gainesville, Florida
| | - Deborah A Scheuer
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, Gainesville, Florida
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Li C, Qiao B, Qi W, Zhan Y, Ma C, Zhao L, Li G. Association of Macrophage Migration Inhibitory Factor Polymorphisms with Gestational Diabetes Mellitus in Han Chinese Women. Gynecol Obstet Invest 2015; 81:84-9. [DOI: 10.1159/000398796] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 04/06/2015] [Indexed: 11/19/2022]
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Boef AGC, Dekkers OM, le Cessie S. Mendelian randomization studies: a review of the approaches used and the quality of reporting. Int J Epidemiol 2015; 44:496-511. [PMID: 25953784 DOI: 10.1093/ije/dyv071] [Citation(s) in RCA: 248] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Mendelian randomization (MR) studies investigate the effect of genetic variation in levels of an exposure on an outcome, thereby using genetic variation as an instrumental variable (IV). We provide a meta-epidemiological overview of the methodological approaches used in MR studies, and evaluate the discussion of MR assumptions and reporting of statistical methods. METHODS We searched PubMed, Medline, Embase and Web of Science for MR studies up to December 2013. We assessed (i) the MR approach used; (ii) whether the plausibility of MR assumptions was discussed; and (iii) whether the statistical methods used were reported adequately. RESULTS Of 99 studies using data from one study population, 32 used genetic information as a proxy for the exposure without further estimation, 44 performed a formal IV analysis, 7 compared the observed with the expected genotype-outcome association, and 1 used both the latter two approaches. The 80 studies using data from multiple study populations used many different approaches to combine the data; 52 of these studies used some form of IV analysis; 44% of studies discussed the plausibility of all three MR assumptions in their study. Statistical methods used for IV analysis were insufficiently described in 14% of studies. CONCLUSIONS Most MR studies either use the genotype as a proxy for exposure without further estimation or perform an IV analysis. The discussion of underlying assumptions and reporting of statistical methods for IV analysis are frequently insufficient. Studies using data from multiple study populations are further complicated by the combination of data or estimates. We provide a checklist for the reporting of MR studies.
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Affiliation(s)
- Anna G C Boef
- Department of Clinical Epidemiology, Department of Endocrinology and Metabolic Diseases, and Department of Medical Statistics and Bioinformatics, Leiden University Medical Centre, Leiden, The Netherlands.
| | - Olaf M Dekkers
- Department of Clinical Epidemiology, Department of Endocrinology and Metabolic Diseases, and Department of Medical Statistics and Bioinformatics, Leiden University Medical Centre, Leiden, The Netherlands. Department of Clinical Epidemiology, Department of Endocrinology and Metabolic Diseases, and Department of Medical Statistics and Bioinformatics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Saskia le Cessie
- Department of Clinical Epidemiology, Department of Endocrinology and Metabolic Diseases, and Department of Medical Statistics and Bioinformatics, Leiden University Medical Centre, Leiden, The Netherlands. Department of Clinical Epidemiology, Department of Endocrinology and Metabolic Diseases, and Department of Medical Statistics and Bioinformatics, Leiden University Medical Centre, Leiden, The Netherlands
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Kim BS, Pallua N, Bernhagen J, Bucala R. The macrophage migration inhibitory factor protein superfamily in obesity and wound repair. Exp Mol Med 2015; 47:e161. [PMID: 25930990 PMCID: PMC4454997 DOI: 10.1038/emm.2015.26] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 02/03/2015] [Indexed: 12/15/2022] Open
Abstract
The rising number of obese individuals has become a major burden to the healthcare systems worldwide. Obesity includes not only the increase of adipose tissue mass but importantly also the altered cellular functions that collectively lead to a chronic state of adipose tissue inflammation, insulin resistance and impaired wound healing. Adipose tissue undergoing chronic inflammation shows altered cytokine expression and an accumulation of adipose tissue macrophages (ATM). The macrophage migration inhibitory factor (MIF) superfamily consists of MIF and the recently identified homolog D-dopachrome tautomerase (D-DT or MIF-2). MIF and D-DT, which both bind to the CD74/CD44 receptor complex, are differentially expressed in adipose tissue and have distinct roles in adipogenesis. MIF positively correlates with obesity as well as insulin resistance and contributes to adipose tissue inflammation by modulating ATM functions. D-DT, however, is negatively correlated with obesity and reverses glucose intolerance. In this review, their respective roles in adipose tissue homeostasis, adipose tissue inflammation, insulin resistance and impaired wound healing will be reviewed.
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Affiliation(s)
- Bong-Sung Kim
- 1] Department of Medicine, Yale University School of Medicine, New Haven, CT, USA [2] Institute of Biochemistry and Molecular Cell Biology, RWTH Aachen University, Aachen, Germany [3] Department of Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Norbert Pallua
- Department of Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Jürgen Bernhagen
- Institute of Biochemistry and Molecular Cell Biology, RWTH Aachen University, Aachen, Germany
| | - Richard Bucala
- Department of Medicine, Yale University School of Medicine, New Haven, CT, USA
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Macrophage migration inhibitory factor promoter polymorphisms (-794 CATT 5-8 and -173 G>C): relationship with mRNA expression and soluble MIF levels in young obese subjects. DISEASE MARKERS 2015; 2015:461208. [PMID: 25972622 PMCID: PMC4417998 DOI: 10.1155/2015/461208] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/29/2015] [Accepted: 03/30/2015] [Indexed: 11/18/2022]
Abstract
We analyzed the relationship of −794 CATT5–8 and −173 G>C MIF polymorphisms with mRNA and soluble MIF in young obese subjects. A total of 250 young subjects, 150 normal-weight and 100 obese subjects, were recruited in the study. Genotyping of −794 CATT5–8 and −173 G>C MIF polymorphisms was performed by PCR and PCR-RFLP, respectively. MIF mRNA expression was determined by real-time PCR and serum MIF levels were measured using an ELISA kit. For both MIF promoter polymorphisms, no significant differences in the genotype and allele frequencies between groups were observed. MIF mRNA expression was slightly higher in obese subjects than in normal-weight subjects (1.38-fold), while soluble MIF levels did not show differences between groups. In addition, we found an increase in MIF mRNA expression in carriers of the 6,6 and C/C genotypes and the 6G haplotype of the −794 CATT5–8 and −173 G>C MIF polymorphisms, although it was not significant. In conclusion, this study found no relationship between obesity and MIF gene promoter polymorphisms with MIF mRNA expression in young obese subjects.
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Macrophage migration inhibitory factor (MIF) knockout preserves cardiac homeostasis through alleviating Akt-mediated myocardial autophagy suppression in high-fat diet-induced obesity. Int J Obes (Lond) 2014; 39:387-96. [PMID: 25248618 PMCID: PMC4355049 DOI: 10.1038/ijo.2014.174] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 09/05/2014] [Accepted: 09/17/2014] [Indexed: 12/20/2022]
Abstract
Background Macrophage migration inhibitory factor (MIF) plays a role in the development of obesity and diabetes. However, whether MIF plays a role in fat diet-induced obesity and associated cardiac anomalies still remains unknown. The aim of this study was to examine the impact of MIF knockout on high fat diet-induced obesity, obesity-associated cardiac anomalies and the underlying mechanisms involved with a focus on Akt-mediated autophagy. Methods Adult male wild-type (WT) and MIF knockout (MIF−/−) mice were placed on 45% high fat diet for 5 months. Oxygen consumption, CO2 production, respiratory exchange ratio (RER), locomotor activity, and heat generation were measured using energy calorimeter. Echocardiographic, cardiomyocyte mechanical and intracellular Ca2+ properties were assessed. Apoptosis was examined using TUNEL staining and western blot analysis. Akt signaling pathway and autophagy markers were evaluated. Cardiomyocytes isolated from WT and MIF−/− mice were treated with recombinant mouse MIF (rmMIF). Results High fat diet feeding elicited increased body weight gain, insulin resistance, and caloric disturbance in WT and MIF−/− mice. High fat diet induced unfavorable geometric, contractile and histological changes in the heart, the effects of which were alleviated by MIF knockout. In addition, fat diet-induced cardiac anomalies were associated with Akt activation and autophagy suppression, which were nullified by MIF deficiency. In cardiomyocytes from WT mice, autophagy was inhibited by exogenous rmMIF through Akt activation. In addition, MIF knockout rescued palmitic acid-induced suppression of cardiomyocyte autophagy, the effect of which was nullified by rmMIF. Conclusions These results indicate that MIF knockout preserved obesity-associated cardiac anomalies without affecting fat diet-induced obesity, probably through restoring myocardial autophagy in an Akt-dependent manner. Our findings provide new insights for the role of MIF in obesity and associated cardiac anomalies.
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Davey Smith G, Hemani G. Mendelian randomization: genetic anchors for causal inference in epidemiological studies. Hum Mol Genet 2014; 23:R89-98. [PMID: 25064373 PMCID: PMC4170722 DOI: 10.1093/hmg/ddu328] [Citation(s) in RCA: 2025] [Impact Index Per Article: 202.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 06/19/2014] [Accepted: 06/20/2014] [Indexed: 12/13/2022] Open
Abstract
Observational epidemiological studies are prone to confounding, reverse causation and various biases and have generated findings that have proved to be unreliable indicators of the causal effects of modifiable exposures on disease outcomes. Mendelian randomization (MR) is a method that utilizes genetic variants that are robustly associated with such modifiable exposures to generate more reliable evidence regarding which interventions should produce health benefits. The approach is being widely applied, and various ways to strengthen inference given the known potential limitations of MR are now available. Developments of MR, including two-sample MR, bidirectional MR, network MR, two-step MR, factorial MR and multiphenotype MR, are outlined in this review. The integration of genetic information into population-based epidemiological studies presents translational opportunities, which capitalize on the investment in genomic discovery research.
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Affiliation(s)
- George Davey Smith
- MRC Integrative Epidemiology Unit (IEU) at the University of Bristol, School of Social and Community Medicine, Bristol, UK
| | - Gibran Hemani
- MRC Integrative Epidemiology Unit (IEU) at the University of Bristol, School of Social and Community Medicine, Bristol, UK
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Coban N, Onat A, Yildirim O, Can G, Erginel-Unaltuna N. Oxidative stress-mediated (sex-specific) loss of protection against type-2 diabetes by macrophage migration inhibitory factor (MIF)-173G/C polymorphism. Clin Chim Acta 2014; 438:1-6. [PMID: 25108206 DOI: 10.1016/j.cca.2014.07.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 07/25/2014] [Accepted: 07/29/2014] [Indexed: 01/14/2023]
Abstract
BACKGROUND The archetypical yet atypical cytokine macrophage migration inhibitory factor (MIF) fulfills pleiotropic immune functions in inflammatory diseases. Evidence emerging from both expression and functional studies implicates MIF in various aspects of cardiovascular diseases. We aimed to determine the covariates of MIF-173G/C polymorphism and its influence on type-2 diabetes risk in a sample representative of middle-aged Turks. METHODS Randomly selected 2250 Turkish adults (mean age; 49.7±11.9, 48.5% male) were genotyped for -173G/C polymorphism using hybridization probes in Real-Time PCR LC480 device. RESULTS The MIF-173CC genotype prevailed in 3.7% in men and 2.9% in women. C-allele carriage was associated linearly with wider waist girth, independently of fasting glucose, and was further related to higher apolipoprotein B (apoB) (p<0.05) in men, but not women. Logistic regression analysis showed the C-allele carriage to tend to predict new-onset diabetes (RR 1.51; [95% CI 0.98; 2.32]), additively to age and fasting glucose in men, but not in women. In contrast, risk for established (baseline) diabetes mellitus was lower (OR=0.49, 95% Cl 0.26-0.93, p=0.03) in heterozygotes, after adjustment for atherogenic dyslipidemia and other confounders. CONCLUSION MIF-173GC polymorphism independently contributes to abdominal obesity and is related to apoB concentrations apparently in men alone. Tendency of the -173C-allele carriage to predict new-onset diabetes independently was also confined to men. These gender-modulated associations suggest novel gene-gender-environmental interactions originating from a proinflammatory state.
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Affiliation(s)
- Neslihan Coban
- Department of Genetics, Institute for Experimental Medicine, Istanbul University, Istanbul, Turkey.
| | - Altan Onat
- Emeritus Professor, Department of Cardiology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey.
| | - Ozlem Yildirim
- Department of Genetics, Institute for Experimental Medicine, Istanbul University, Istanbul, Turkey.
| | - Gunay Can
- Cerrahpaşa Medical Faculty, Department of Public Health, Istanbul University, Istanbul, Turkey.
| | - Nihan Erginel-Unaltuna
- Department of Genetics, Institute for Experimental Medicine, Istanbul University, Istanbul, Turkey.
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Tan L, Ye X, Zhou Y, Yu M, Fu Z, Chen R, Zhuang B, Zeng B, Ye H, Gao W, Lin Q, Li Z, Zhou Q, Chen R. Macrophage migration inhibitory factor is overexpressed in pancreatic cancer tissues and impairs insulin secretion function of β-cell. J Transl Med 2014; 12:92. [PMID: 24708788 PMCID: PMC4022046 DOI: 10.1186/1479-5876-12-92] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 03/17/2014] [Indexed: 02/08/2023] Open
Abstract
Background Understanding the pathogenic mechanism of pancreatic cancer associated diabetes (PCDM) might help yield biomarkers for the early diagnosis of pancreatic cancer (PC) from population with new-onset diabetes. In the current study, we sought to determine the role of macrophage migration inhibitory factor (MIF) in PCDM pathogenesis. Methods The protein and mRNA levels of MIF in paraffin-embedded human PC samples, chronic pancreatitis specimens, and normal pancreas were measured by immunohistochemistry and quantitative reverse-transcriptase polymerase chain reaction. We measured serum levels of MIF in PC patients and controls. The biologic impacts of MIF overexpression on insulin secretion function of mice islets and β cells (HIT-T15) were investigated in vitro. Results MIF expression was significantly increased in pancreatic cancer tissues compared with chronic pancreatitis or normal pancreas specimens. The insulin secretion function of both islets and HIT-T15 cells was impaired by indirect co-cultured with PC cells or treated with conditioned media from them. Stable MIF knock-down significantly decreased the diabetogenic effect of PC cells, while MIF knock-in HPDE6 cells demonstrated a strong inhibitory effect on insulin secretion function of islets and HIT-T15 cells. MIF impaired βcell function by depressing the Ca2+ currents, decreasing L-type Ca2+ channel α1 subunit protein expression level, and enhancing p-Src activity. Mean serum level of MIF was significant higher in new-onset diabetes associated PC patients in comparison with other groups. Conclusions MIF is up-regulated in patients with pancreatic cancer and causes dysfunction of insulin secretion in β-cells.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Quanbo Zhou
- Department of Pancreaticobiliary Surgery, The Second Affiliated Hospital of Sun Yat-sen University (Sun Yat-sen Memorial Hospital), Sun Yat-sen University, 107 Yan-Jiang Xi Road, Guangzhou 510120, China.
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Strength training and testosterone treatment have opposing effects on migration inhibitor factor levels in ageing men. Mediators Inflamm 2013; 2013:539156. [PMID: 24089589 PMCID: PMC3781991 DOI: 10.1155/2013/539156] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 07/24/2013] [Accepted: 08/02/2013] [Indexed: 12/24/2022] Open
Abstract
Background. The beneficial effects of testosterone treatment (TT) are debated. Methods. Double-blinded, placebo-controlled study of six months TT (gel) in 54 men aged 60–78 with bioavailable testosterone (BioT) <7.3 nmol/L and waist >94 cm randomized to TT (50–100 mg/day, n = 20), placebo (n = 18), or strength training (ST) (n = 16) for 24 weeks. Moreover, the ST group was randomized to TT (n = 7) or placebo (n = 9) after 12 weeks. Outcomes. Chemokines (MIF, MCP-1, and MIP-1α) and lean body mass (LBM), total, central, extremity, visceral, and subcutaneous (SAT) fat mass established by DXA and MRI. Results. From 0 to 24 weeks, MIF and SAT decreased during ST + placebo versus placebo, whereas BioT and LBM were unchanged. TT decreased fat mass (total, central, extremity, and SAT) and increased BioT and LBM versus placebo. MIF levels increased during TT versus ST + placebo. ST + TT decreased fat mass (total, central, and extremity) and increased BioT and LBM versus placebo. From 12 to 24 weeks, MCP-1 levels increased during TT versus placebo and MCP-1 levels decreased during ST + placebo versus placebo. Conclusion. ST + placebo was associated with decreased MIF levels suggesting decreased inflammatory activity. TT may be associated with increased inflammatory activity. This trial is registered with ClinicalTrials.gov NCT00700024.
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Current developments of macrophage migration inhibitory factor (MIF) inhibitors. Drug Discov Today 2013; 18:592-600. [DOI: 10.1016/j.drudis.2012.12.013] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 12/14/2012] [Accepted: 12/20/2012] [Indexed: 12/21/2022]
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Tan SY, Wu PB, Zhang G, Luo HS, Yao WM. Association between macrophage migration inhibitory factor _173G/C polymorphism and inflammatory bowel disease: A meta-analysis. Shijie Huaren Xiaohua Zazhi 2013; 21:1140-1145. [DOI: 10.11569/wcjd.v21.i12.1140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To explore the association between macrophage migration inhibitory factor (MIF) -173G/C polymorphism and susceptibility to inflammatory bowel disease.
METHODS: Searches of electronic databases CBM, CNKI, PubMed and EMbase were performed to retrieve published case-control studies investigating the association between MIF -173G/C polymorphism and susceptibility to ulcerative colitis (UC) or Crohn's disease (CD). The pooled odds ratios (ORs) with 95% confidence intervals (95%CIs) were calculated using fixed-effect or random-effect methods based on the absence or presence of significant heterogeneity. Publication bias was assessed. All statistical analyses were conducted with STATA10.0 software.
RESULTS: Increased risk of UC was associated with MIF -173G/C polymorphism in the dominant genetic model (GG/C + C/C vs G/G: OR = 1.15, 95%CI: 1.00-1.32), the homozygote comparison (C/C vs G/G: OR = 1.54, 95%CI: 1.08-2.19) and recessive model (C/C vs G/C + G/G: OR = 1.52, 95%CI: 1.07-2.17). However, no association was found between MIF -173G/C polymorphism and susceptibility to CD.
CONCLUSION: Our meta-analysis strongly suggests that MIF -173G/C polymorphism is associated with susceptibility to UC. However, current studies do not support a direct relationship between MIF -173G/C polymorphism and susceptibility to CD.
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Palud A, Marciniak C, Montaigne D, Marechal X, Ballot C, Hassoun SM, Decoster B, Neviere R, Lancel S. Macrophage migration inhibitory factor inhibition is deleterious for high-fat diet-induced cardiac dysfunction. PLoS One 2013; 8:e58718. [PMID: 23536817 PMCID: PMC3594150 DOI: 10.1371/journal.pone.0058718] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 02/05/2013] [Indexed: 12/04/2022] Open
Abstract
Aims Development of metabolic syndrome is associated with impaired cardiac performance, mitochondrial dysfunction and pro-inflammatory cytokine increase, such as the macrophage migration inhibitory factor MIF. Depending on conditions, MIF may exert both beneficial and deleterious effects on the myocardium. Therefore, we tested whether pharmacological inhibition of MIF prevented or worsened metabolic syndrome-induced myocardial dysfunction. Methods and Results C57BL/6J mice were fed for ten weeks with 60% fat-enriched diet (HFD) or normal diet (ND). MIF inhibition was obtained by injecting mice twice a week with ISO-1, for three consecutive weeks. Then, triglycerides, cholesterol, fat mass, glucose intolerance, insulin resistance, ex vivo cardiac contractility, animal energetic substrate utilization assessed by indirect calorimetry and mitochondrial respiration and biogenesis were evaluated. HFD led to fat mass increase, dyslipidemia, glucose intolerance and insulin resistance. ISO-1 did not alter these parameters. However, MIF inhibition was responsible for HFD-induced cardiac dysfunction worsening. Mouse capacity to increase oxygen consumption in response to exercise was reduced in HFD compared to ND, and further diminished in ISO-1-treated HFD group. Mitochondrial respiration was reduced in HFD mice, treated or not with ISO-1. Compared to ND, mitochondrial biogenesis signaling was upregulated in the HFD as demonstrated by mitochondrial DNA amount and PGC-1α expression. However, this increase in biogenesis was blocked by ISO-1 treatment. Conclusion MIF inhibition achieved by ISO-1 was responsible for a reduction in HFD-induced mitochondrial biogenesis signaling that could explain majored cardiac dysfunction observed in HFD mice treated with MIF inhibitor.
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Affiliation(s)
- Aurore Palud
- EA4484, Physiology Department, Lille 2 University, Lille, France
| | | | - David Montaigne
- EA4484, Physiology Department, Lille 2 University, Lille, France
| | - Xavier Marechal
- EA4484, Physiology Department, Lille 2 University, Lille, France
| | - Caroline Ballot
- EA4484, Physiology Department, Lille 2 University, Lille, France
| | | | | | - Remi Neviere
- EA4484, Physiology Department, Lille 2 University, Lille, France
| | - Steve Lancel
- EA4484, Physiology Department, Lille 2 University, Lille, France
- * E-mail:
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Kamchybekov U, Figulla HR, Gerdes N, Jung C. Macrophage migration inhibitory factor is elevated in obese adolescents. Arch Physiol Biochem 2012; 118:204-9. [PMID: 22676646 DOI: 10.3109/13813455.2012.693089] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES The prevalence of obesity in childhood and adolescence is continuing rising. Macrophage migration inhibitory factor (MIF) participates in inflammatory and immune responses as a pro-inflammatory cytokine. The present study aimed to investigate MIF in overweight adolescents. METHODS Seventy-nine male adolescents were enrolled. Thirty-eight were overweight according to the 90th%ile of the age-specific waist circumference. Various parameters were recorded at one visit, including body mass index. MIF was determined using multiplex immune-assay technology. RESULTS Overweight adolescents had increased systolic blood pressure and CRP levels. Furthermore, increased circulating MIF concentrations were observed (Median: 964.6 pg/ml, Interquartile range: 590.3-2019.4 versus Median: 562.7 pg/ml, Interquartile range: 430.6-813.7, p = 0.003). Increased MIF concentrations were associated with increased markers of inflammation and obesity. CONCLUSIONS We demonstrated elevated MIF levels in obese adolescents. Taken together with other markers, this indicates the presence of low-grade inflammation in these young subjects, possibly representing a link between obesity and related co-morbidities.
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Affiliation(s)
- Uran Kamchybekov
- Friedrich-Schiller-University, Clinic of Internal Medicine I, Jena, Germany
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Khalyfa A, Kheirandish-Gozal L, Capdevila OS, Bhattacharjee R, Gozal D. Macrophage migration inhibitory factor gene polymorphisms and plasma levels in children with obstructive sleep apnea. Pediatr Pulmonol 2012; 47:1001-11. [PMID: 22451332 PMCID: PMC3405200 DOI: 10.1002/ppul.22560] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2011] [Accepted: 11/28/2011] [Indexed: 11/09/2022]
Abstract
INTRODUCTION Obstructive sleep apnea (OSA) is associated with increased risk for cardiovascular and metabolic dysfunction in both adults and children. In adults with OSA, serum levels of macrophage migration inhibitory factor (MIF) are elevated. Therefore, we assessed plasma MIF levels and MIF allelic variant frequencies in children with and without OSA (NOSA). METHODS A total of 614 consecutive children ages 5-8 years were recruited. Children were divided into those with OSA and NOSA based on the apnea-hypopnea index (AHI). In addition to lipid profile, hsCRP, and fasting insulin and glucose levels, plasma MIF levels were assayed using ELISA, and 28 single nucleotide polymorphisms (SNPs) covering the region were genotyped. Linkage disequilibrium and haplotype blocks were analyzed using Haploview version 4.2 software. RESULTS Morning plasma MIF levels were increased in children with OSA. Of the 28 SNPs tested, the frequency of rs10433310 minor allele was significantly decreased in OSA. This SNP was also associated with reduced fasting insulin and hsCRP levels in OSA. The minor allele frequency of all other 27 SNPs was similar in OSA and NOSA groups. CONCLUSIONS Childhood OSA is associated with higher plasma MIF, hsCRP, and fasting insulin levels that promote cardiometabolic risk, and the MIF gene SNP rs10433310 may account for some of the variance in such risk.
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Affiliation(s)
- Abdelnaby Khalyfa
- Department of Pediatrics, Comer Children's Hospital, The University of Chicago, Chicago, IL 60637, USA
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Insights into the role of macrophage migration inhibitory factor in obesity and insulin resistance. Proc Nutr Soc 2012; 71:622-33. [PMID: 22914223 DOI: 10.1017/s0029665112000730] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
High-fat diet (HFD)-induced obesity has emerged as a state of chronic low-grade inflammation characterised by a progressive infiltration of immune cells, particularly macrophages, into obese adipose tissue. Adipose tissue macrophages (ATM) present immense plasticity. In early obesity, M2 anti-inflammatory macrophages acquire an M1 pro-inflammatory phenotype. Pro-inflammatory cytokines including TNF-α, IL-6 and IL-1β produced by M1 ATM exacerbate local inflammation promoting insulin resistance (IR), which consequently, can lead to type-2 diabetes mellitus (T2DM). However, the triggers responsible for ATM recruitment and activation are not fully understood. Adipose tissue-derived chemokines are significant players in driving ATM recruitment during obesity. Macrophage migration inhibitory factor (MIF), a chemokine-like inflammatory regulator, is enhanced during obesity and is directly associated with the degree of peripheral IR. This review focuses on the functional role of macrophages in obesity-induced IR and highlights the importance of the unique inflammatory cytokine MIF in propagating obesity-induced inflammation and IR. Given MIF chemotactic properties, MIF may be a primary candidate promoting ATM recruitment during obesity. Manipulating MIF inflammatory activities in obesity, using pharmacological agents or functional foods, may be therapeutically beneficial for the treatment and prevention of obesity-related metabolic diseases.
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Mirzaei K, Hossein-nezhad A, Aslani S, Emamgholipour S, Karimi M, Keshavarz SA. Energy expenditure regulation via macrophage migration inhibitory factor in obesity and in vitro anti-macrophage migration inhibitory factor effect of Alpinia officinarum Hance extraction. Endocr Pract 2012; 18:39-48. [PMID: 21803717 DOI: 10.4158/ep11116.or] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To compare the resting energy expenditure in different macrophage migration inhibitory factor (MIF) genotypes and to identify the in vitro effects of Alpinia officinarum Hance extract (AOHE) on MIF expression in obese and nonobese persons. METHODS In the fasting state, obese and nonobese persons were assessed for the measurement of resting energy expenditure rate (REE) by indirect calorimetry. We compared it with the expected amount ([REE measured by indirect calorimetry / predicted REE according to Harris Benedict equations] x 100). Participants were classified into those with normal REE (≥100) vs those with impaired REE (<100). Body composition was analyzed. Real-time polymerase chain reaction was performed using specific primer pairs for MIF messenger RNA, and β-actin was used as the internal control. RESULTS The study included 69 obese and 103 non-obese participants. The proportions of MIF genotypes were slightly different in obese and nonobese participants. However, the proportions of MIF genotypes were significantly different in participants with normal REE and those with low REE. The MIF gene was highly expressed in the obese group compared with MIF expression in the nonobese group. Body fat mass and MIF expression were higher in participants with the GG genotype than in the other genotype groups. MIF expression was inversely associated with REE in both groups (r = -0.36, P = .04). After treatment of peripheral blood mononuclear cells with AOHE, MIF expression differed according to MIF genotype. CONCLUSIONS Our results indicate that AOHE is a major modulator of MIF-dependent pathologic conditions in obesity and are consistent with mounting evidence that defines a regulating role for MIF in cytokine production in an inflammatory state in in vitro studies.
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Affiliation(s)
- Khadijeh Mirzaei
- Endocrinology and Metabolism Research Center, Department of Nutrition and Biochemistry, School of Public Health and Institute of Public Health Research, Tehran University of Medical Sciences, Tehran, Iran
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Heraclides AM, Chandola T, Witte DR, Brunner EJ. Work stress, obesity and the risk of type 2 diabetes: gender-specific bidirectional effect in the Whitehall II study. Obesity (Silver Spring) 2012; 20:428-33. [PMID: 21593804 DOI: 10.1038/oby.2011.95] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Psychosocial work stress has been linked to higher risk of type 2 diabetes (T2DM), with the effect being consistently higher among women than men. Also, work stress has been linked to prospective weight gain among obese men but weight loss among lean men. Here, we aimed to examine the interaction between work stress and obesity in relation to T2DM risk in a gender-specific manner. We studied 5,568 white middle-aged men and women in the Whitehall II study, who were free from diabetes at analysis baseline (1993). After 1993, diabetes was ascertained at six consecutive phases by an oral glucose tolerance test supplemented by self-reports. Cox regression analysis was used to assess the association between job strain (high job demands/low job control) and 18-year incident T2DM stratifying by BMI (BMI <30 kg/m(2) vs. BMI ≥30 kg/m(2)). Overall, work stress was associated with incident T2DM among women (hazard ratio (HR) 1.41: 95% confidence intervals: 1.02; 1.95) but not among men (HR 0.87: 95% confidence interval 0.69; 1.11) (P(INTERACTION) = 0.017). Among men, work stress was associated with a lower risk of T2DM in nonobese (HR 0.70: 0.53; 0.93) but not in obese individuals (P(INTERACTION) = 0.17). Among women, work stress was associated with higher risk of T2DM in the obese (HR 2.01: 1.06; 3.92) but not in the nonobese (P(INTERACTION) = 0.005). Gender and body weight status play a critical role in determining the direction of the association between psychosocial stress and T2DM. The potential effect-modifying role of gender and obesity should not be ignored by future studies looking at stress-disease associations.
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Affiliation(s)
- Alexandros M Heraclides
- Department of Epidemiology and Public Health, Royal Free and University College London Medical School, London, UK.
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Yilmaz Ö, Küçük M, Kebapçilar L, Altindag T, Yüksel A, Yuvanç HO, Dal T, Savran Y. Macrophage migration-inhibitory factor is elevated in pregnant women with gestational diabetes mellitus. Gynecol Endocrinol 2012; 28:76-9. [PMID: 21848392 DOI: 10.3109/09513590.2011.588757] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVE In reports, abnormal macrophage migration-inhibitory factor (MIF) production has been associated with several diseases. Furthermore, despite scarce data, increasing evidence suggest that MIF plays a central role in glucose homeostasis and in the development of type 1 and type 2 diabetes. However, serum MIF levels in gestational diabetes mellitus (GDM) have not yet been investigated. To address this question, we performed a prospective study between a group of pregnant women with GDM and healthy pregnant controls. MATERIALS AND METHODS GDM group consisted of 43 pregnant women, whereas the control group consisted of 40 healthy pregnant women. In the morning after an overnight fast, venous blood was sampled for the measurement of serum concentrations of insulin and MIF. Serum was separated by centrifugation and immediately stored at -80°C until the assay. RESULTS There was no significant difference between the groups for maternal characteristics. Women with GDM had significantly higher levels of serum insulin (14.37 ± 9.92 µU/ml vs. 8.78 ± 4.35 µU/ml; p = 0.001) and serum MIF concentrations (11.31 ± 4.92 ng/ml vs. 5.31 ± 4.07 ng/ml; p < 0.001) when compared with healthy pregnant control group. CONCLUSION Our data demonstrated that serum levels of MIF are significantly elevated in patients with GDM. Our findings indicate that MIF might have a role in GDM; however, there is a need for further investigation.
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Affiliation(s)
- Özgür Yilmaz
- Department of Obstetrics and Gynecology, Akhisar State Hospital, Akhisar, Manisa, Turkey.
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Depression and type 2 diabetes: Inflammatory mechanisms of a psychoneuroendocrine co-morbidity. Neurosci Biobehav Rev 2012; 36:658-76. [DOI: 10.1016/j.neubiorev.2011.10.001] [Citation(s) in RCA: 168] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 10/01/2011] [Accepted: 10/05/2011] [Indexed: 01/28/2023]
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Herder C, Peeters W, Illig T, Baumert J, de Kleijn DPV, Moll FL, Poschen U, Klopp N, Müller-Nurasyid M, Roden M, Preuss M, Karakas M, Meisinger C, Thorand B, Pasterkamp G, Koenig W, Assimes TL, Deloukas P, Erdmann J, Holm H, Kathiresan S, König IR, McPherson R, Reilly MP, Roberts R, Samani NJ, Schunkert H, Stewart AFR. RANTES/CCL5 and risk for coronary events: results from the MONICA/KORA Augsburg case-cohort, Athero-Express and CARDIoGRAM studies. PLoS One 2011; 6:e25734. [PMID: 22162987 PMCID: PMC3232218 DOI: 10.1371/journal.pone.0025734] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 09/09/2011] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The chemokine RANTES (regulated on activation, normal T-cell expressed and secreted)/CCL5 is involved in the pathogenesis of cardiovascular disease in mice, whereas less is known in humans. We hypothesised that its relevance for atherosclerosis should be reflected by associations between CCL5 gene variants, RANTES serum concentrations and protein levels in atherosclerotic plaques and risk for coronary events. METHODS AND FINDINGS We conducted a case-cohort study within the population-based MONICA/KORA Augsburg studies. Baseline RANTES serum levels were measured in 363 individuals with incident coronary events and 1,908 non-cases (mean follow-up: 10.2±4.8 years). Cox proportional hazard models adjusting for age, sex, body mass index, metabolic factors and lifestyle factors revealed no significant association between RANTES and incident coronary events (HR [95% CI] for increasing RANTES tertiles 1.0, 1.03 [0.75-1.42] and 1.11 [0.81-1.54]). None of six CCL5 single nucleotide polymorphisms and no common haplotype showed significant associations with coronary events. Also in the CARDIoGRAM study (>22,000 cases, >60,000 controls), none of these CCL5 SNPs was significantly associated with coronary artery disease. In the prospective Athero-Express biobank study, RANTES plaque levels were measured in 606 atherosclerotic lesions from patients who underwent carotid endarterectomy. RANTES content in atherosclerotic plaques was positively associated with macrophage infiltration and inversely associated with plaque calcification. However, there was no significant association between RANTES content in plaques and risk for coronary events (mean follow-up 2.8±0.8 years). CONCLUSIONS High RANTES plaque levels were associated with an unstable plaque phenotype. However, the absence of associations between (i) RANTES serum levels, (ii) CCL5 genotypes and (iii) RANTES content in carotid plaques and either coronary artery disease or incident coronary events in our cohorts suggests that RANTES may not be a novel coronary risk biomarker. However, the potential relevance of RANTES levels in platelet-poor plasma needs to be investigated in further studies.
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Affiliation(s)
- Christian Herder
- Institute for Clinical Diabetology, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
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Abstract
Macrophage migration inhibitory factor (MIF) is a pleiotropic proinflammatory cytokine that has been implicated as playing a causative role in many disease states, including sepsis, pneumonia, diabetes, rheumatoid arthritis, inflammatory bowel disease, psoriasis and cancer. To inhibit the enzymatic and biologic activities of MIF, we and others have developed small-molecule MIF inhibitors. Most MIF inhibitors bind within the hydrophobic pocket that contains highly conserved amino acids known to be essential for MIF's proinflammatory activity. The best characterized of these small-molecule MIF inhibitors, (S,R)-3-(4-hydroxyphenyl)-4,5-dihydro-5-isoxazole acetic acid methyl ester (ISO-1) has been validated in scores of laboratories worldwide. Like neutralizing anti-MIF antibodies, ISO-1 significantly improves survival and reduces disease progression and/or severity in multiple murine models where MIF is implicated. This MIF inhibitor, its derivatives and other MIF-targeted compounds show great promise for future testing in disease states where increased MIF activity has been discovered.
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Immunological and cardiometabolic risk factors in the prediction of type 2 diabetes and coronary events: MONICA/KORA Augsburg case-cohort study. PLoS One 2011; 6:e19852. [PMID: 21674000 PMCID: PMC3108947 DOI: 10.1371/journal.pone.0019852] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Accepted: 04/19/2011] [Indexed: 12/20/2022] Open
Abstract
Background This study compares inflammation-related biomarkers with established cardiometabolic risk factors in the prediction of incident type 2 diabetes and incident coronary events in a prospective case-cohort study within the population-based MONICA/KORA Augsburg cohort. Methods and Findings Analyses for type 2 diabetes are based on 436 individuals with and 1410 individuals without incident diabetes. Analyses for coronary events are based on 314 individuals with and 1659 individuals without incident coronary events. Mean follow-up times were almost 11 years. Areas under the receiver-operating characteristic curve (AUC), changes in Akaike's information criterion (ΔAIC), integrated discrimination improvement (IDI) and net reclassification index (NRI) were calculated for different models. A basic model consisting of age, sex and survey predicted type 2 diabetes with an AUC of 0.690. Addition of 13 inflammation-related biomarkers (CRP, IL-6, IL-18, MIF, MCP-1/CCL2, IL-8/CXCL8, IP-10/CXCL10, adiponectin, leptin, RANTES/CCL5, TGF-β1, sE-selectin, sICAM-1; all measured in nonfasting serum) increased the AUC to 0.801, whereas addition of cardiometabolic risk factors (BMI, systolic blood pressure, ratio total/HDL-cholesterol, smoking, alcohol, physical activity, parental diabetes) increased the AUC to 0.803 (ΔAUC [95% CI] 0.111 [0.092–0.149] and 0.113 [0.093–0.149], respectively, compared to the basic model). The combination of all inflammation-related biomarkers and cardiometabolic risk factors yielded a further increase in AUC to 0.847 (ΔAUC [95% CI] 0.044 [0.028–0.066] compared to the cardiometabolic risk model). Corresponding AUCs for incident coronary events were 0.807, 0.825 (ΔAUC [95% CI] 0.018 [0.013–0.038] compared to the basic model), 0.845 (ΔAUC [95% CI] 0.038 [0.028–0.059] compared to the basic model) and 0.851 (ΔAUC [95% CI] 0.006 [0.003–0.021] compared to the cardiometabolic risk model), respectively. Conclusions Inclusion of multiple inflammation-related biomarkers into a basic model and into a model including cardiometabolic risk factors significantly improved the prediction of type 2 diabetes and coronary events, although the improvement was less pronounced for the latter endpoint.
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Li C, Qiao B, Zhan Y, Qi W, Chen ZJ. First Evidence of Genetic Association Between the MIF-173G/C Single-Nucleotide Polymorphisms and Polycystic Ovary Syndrome. Am J Reprod Immunol 2011; 66:416-22. [DOI: 10.1111/j.1600-0897.2011.01011.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Aslani S, Hossein-Nezhad A, Mirzaei K, Maghbooli Z, Asgarabad S, Karimi F. Tandem Repeats of the Catt Element of Macrophage Migration Inhibitory Factor Gene May Predict Gestational Diabetes Mellitus Severity. EUR J INFLAMM 2011. [DOI: 10.1177/1721727x1100900213] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Previous investigations have demonstrated the association of the CATT repeated allele in the Macrophage migration inhibitory factor (MIF) with obesity and diabetes. Since there are common risk factors and molecular pathways in Type 2 Diabetes and Gestational Diabetes Mellitus (GDM), we focused on the associations of MIF variation with GDM. In a case-control study we enrolled 157 GDM and 217 healthy pregnant women, referred to the outpatient clinic of Shariati Hospital. The different repeats of CATT in MIF promoter were determined. MIF relative gene expression was evaluated in Peripheral blood mononuclear cells of all the participants. The GDM group had higher mean age and pre-gravid BMI. Also fasting serum glucose, insulin and MIF gene expression were significantly higher in the GDM patients. The statistically significant difference was observed between GDM and a healthy group in carrying 7-CATT allele and MIF gene expression. Regarding GDM risk factors, MIF 7-CATT allele showed significant relation with pre-pregnancy obesity, as well as the need for insulin therapy. Our results indicate that an association between MIF genotypes and its expression with GDM, obesity and the need of insulin for management of GDM patients exists.
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Affiliation(s)
- S. Aslani
- Endocrinology and Metabolism Research Centre, Shariati Hospital, Tehran, Iran
| | - A. Hossein-Nezhad
- Endocrinology and Metabolism Research Centre, Shariati Hospital, Tehran, Iran
| | - K. Mirzaei
- Endocrinology and Metabolism Research Centre, Shariati Hospital, Tehran, Iran
| | - Z. Maghbooli
- Endocrinology and Metabolism Research Centre, Shariati Hospital, Tehran, Iran
| | - S.N. Asgarabad
- Endocrinology and Metabolism Research Centre, Shariati Hospital, Tehran, Iran
| | - F. Karimi
- Endocrinology and Metabolism Research Centre, Shariati Hospital, Tehran, Iran
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Liang JL, Xiao DZ, Liu XY, Lin QX, Shan ZX, Zhu JN, Lin SG, Yu XY. High glucose induces apoptosis in AC16 human cardiomyocytes via macrophage migration inhibitory factor and c-Jun N-terminal kinase. Clin Exp Pharmacol Physiol 2010; 37:969-73. [DOI: 10.1111/j.1440-1681.2010.05420.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Harper JM, Wilkinson JE, Miller RA. Macrophage migration inhibitory factor-knockout mice are long lived and respond to caloric restriction. FASEB J 2010; 24:2436-42. [PMID: 20219983 DOI: 10.1096/fj.09-152223] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Macrophage migration inhibitory factor (MIF) affects inflammation, glucose homeostasis, and cellular proliferation in mammals. Previously, we found that MIF was significantly elevated in multiple long-lived mouse models, including calorie restriction (CR), which led us to hypothesize that MIF might be important in the control of mammalian life span and be necessary for the life-extending effects of CR. To test this hypothesis, we examined the life span of mice with a targeted deletion of the Mif gene on a segregating B6 x 129/Sv background (MIF-KO) under ad libitum (AL) feeding and CR conditions. Control mice were generated by mating C57BL/6J females with 129/SvJ males to make an F1 hybrid, and crossing F1 males to F1 females to produce segregating F2 mice homozygous for the normal MIF allele. Not only did MIF-KO mice show a life span extension in response to CR, they were, unexpectedly, longer lived than controls under standard AL conditions. MIF-KO mice were significantly protected against lethal hemangiosarcoma, but more likely than controls to die of disseminated amyloid, an age-related inflammatory syndrome. Overall, these data refute the suggestion that MIF is required for the CR effect on life span, but raise the possibility that MIF may limit life span in normal mice.
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Affiliation(s)
- James M Harper
- Department of Pathology and Geriatrics Center, University of Michigan, Ann Arbor, Michigan, USA.
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Sanchez-Zamora Y, Terrazas LI, Vilches-Flores A, Leal E, Juárez I, Whitacre C, Kithcart A, Pruitt J, Sielecki T, Satoskar AR, Rodriguez-Sosa M. Macrophage migration inhibitory factor is a therapeutic target in treatment of non-insulin-dependent diabetes mellitus. FASEB J 2010; 24:2583-90. [PMID: 20203087 DOI: 10.1096/fj.09-147066] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine involved in the pathogenesis of a variety of autoimmune inflammatory diseases. Here, we investigated the role of MIF in the pathogenesis of non-insulin-dependent diabetes mellitus (NIDDM) using MIF(-/-) mice and a mouse model of streptozotocin (STZ)-induced NIDDM. Following single injection of STZ, MIF(+/+) BALB/c mice showed a significant increase in blood glucose levels, developed polyuria, and succumbed to disease. In contrast, no such increase in blood glucose was observed in MIF(-/-) BALB/c mice treated with STZ. These mice produced significantly less inflammatory cytokines and resistin as compared with MIF(+/+) mice and failed to develop clinical disease. Finally, oral administration of a small-molecule MIF antagonist, CPSI-1306, to outbred ICR mice following induction of NIDDM significantly lowered blood glucose levels in the majority of animals, which was also associated with a significant reduction in the levels of the proinflammatory cytokines IL-6 and TNF-alpha in the sera. Taken together, these results demonstrate that MIF is involved in the pathogenesis of NIDDM and is a therapeutic target to treat this disease.
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Affiliation(s)
- Yuriko Sanchez-Zamora
- Department of Pathology, Ohio State University Medical Center, Columbus, OH 43210, USA
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Bochud M, Rousson V. Usefulness of Mendelian randomization in observational epidemiology. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2010; 7:711-28. [PMID: 20616999 PMCID: PMC2872313 DOI: 10.3390/ijerph7030711] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2009] [Accepted: 02/16/2010] [Indexed: 11/16/2022]
Abstract
Mendelian randomization refers to the random allocation of alleles at the time of gamete formation. In observational epidemiology, this refers to the use of genetic variants to estimate a causal effect between a modifiable risk factor and an outcome of interest. In this review, we recall the principles of a "Mendelian randomization" approach in observational epidemiology, which is based on the technique of instrumental variables; we provide simulations and an example based on real data to demonstrate its implications; we present the results of a systematic search on original articles having used this approach; and we discuss some limitations of this approach in view of what has been found so far.
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Affiliation(s)
- Murielle Bochud
- University Institute of Social and Preventive Medicine, Rue du Bugnon 17, Lausanne, Switzerland.
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Macrophage migration inhibitory factor: critical role in obesity, insulin resistance, and associated comorbidities. Mediators Inflamm 2010; 2010:610479. [PMID: 20169173 PMCID: PMC2821632 DOI: 10.1155/2010/610479] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Accepted: 01/07/2010] [Indexed: 12/28/2022] Open
Abstract
Obesity is associated with insulin resistance, disturbed glucose homeostasis, low grade inflammation, and comorbidities such as type 2 diabetes and cardiovascular disease. The cytokine macrophage migration inhibitory factor (MIF) is an ubiquitously expressed protein that plays a crucial role in many inflammatory and autoimmune disorders. Increasing evidence suggests that MIF also controls metabolic and inflammatory processes underlying the development of metabolic pathologies associated with obesity. This is a comprehensive summary of our current knowledge on the role of MIF in obesity and obesity-associated comorbidities, based on human clinical data as well as animal models of disease.
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