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Gordon ER, Fahmy LM, Trager MH, Adeuyan O, Lapolla BA, Schreidah CM, Geskin LJ. From Molecules to Microbes: Tracing Cutaneous T-Cell Lymphoma Pathogenesis through Malignant Inflammation. J Invest Dermatol 2024; 144:1954-1962. [PMID: 38703171 DOI: 10.1016/j.jid.2024.03.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/14/2024] [Accepted: 03/16/2024] [Indexed: 05/06/2024]
Abstract
The etiology of CTCL is a subject of extensive investigation. Researchers have explored links between CTCL and environmental chemical exposures, such as aromatic hydrocarbons (eg, pesticides and benzene), as well as infectious factors, including various viruses (eg, human T-lymphotropic virus [HTLV]-I and HTLV-II) and bacteria (eg, Staphylococcus aureus). There has been growing emphasis on the role of malignant inflammation in CTCL development. In this review, we synthesize studies of environmental and infectious exposures, along with research on the aryl hydrocarbon receptor and the involvement of pathogens in disease etiology, providing insight into the pathogenesis of CTCL.
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Affiliation(s)
- Emily R Gordon
- Columbia University Vagelos College of Physicians and Surgeons, New York, New York, USA
| | - Lauren M Fahmy
- Columbia University Vagelos College of Physicians and Surgeons, New York, New York, USA
| | - Megan H Trager
- Department of Dermatology, Columbia University Irving Medical Center, New York, New York, USA
| | - Oluwaseyi Adeuyan
- Columbia University Vagelos College of Physicians and Surgeons, New York, New York, USA
| | - Brigit A Lapolla
- Department of Dermatology, Columbia University Irving Medical Center, New York, New York, USA
| | - Celine M Schreidah
- Columbia University Vagelos College of Physicians and Surgeons, New York, New York, USA
| | - Larisa J Geskin
- Columbia University Vagelos College of Physicians and Surgeons, New York, New York, USA; Department of Dermatology, Columbia University Irving Medical Center, New York, New York, USA.
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2
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Barkas F, Sener YZ, Golforoush PA, Kheirkhah A, Rodriguez-Sanchez E, Novak J, Apellaniz-Ruiz M, Akyea RK, Bianconi V, Ceasovschih A, Chee YJ, Cherska M, Chora JR, D'Oria M, Demikhova N, Kocyigit Burunkaya D, Rimbert A, Macchi C, Rathod K, Roth L, Sukhorukov V, Stoica S, Scicali R, Storozhenko T, Uzokov J, Lupo MG, van der Vorst EPC, Porsch F. Advancements in risk stratification and management strategies in primary cardiovascular prevention. Atherosclerosis 2024; 395:117579. [PMID: 38824844 DOI: 10.1016/j.atherosclerosis.2024.117579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/29/2024] [Accepted: 05/14/2024] [Indexed: 06/04/2024]
Abstract
Atherosclerotic cardiovascular disease (ASCVD) remains a leading cause of morbidity and mortality worldwide, highlighting the urgent need for advancements in risk assessment and management strategies. Although significant progress has been made recently, identifying and managing apparently healthy individuals at a higher risk of developing atherosclerosis and those with subclinical atherosclerosis still poses significant challenges. Traditional risk assessment tools have limitations in accurately predicting future events and fail to encompass the complexity of the atherosclerosis trajectory. In this review, we describe novel approaches in biomarkers, genetics, advanced imaging techniques, and artificial intelligence that have emerged to address this gap. Moreover, polygenic risk scores and imaging modalities such as coronary artery calcium scoring, and coronary computed tomography angiography offer promising avenues for enhancing primary cardiovascular risk stratification and personalised intervention strategies. On the other hand, interventions aiming against atherosclerosis development or promoting plaque regression have gained attention in primary ASCVD prevention. Therefore, the potential role of drugs like statins, ezetimibe, proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, omega-3 fatty acids, antihypertensive agents, as well as glucose-lowering and anti-inflammatory drugs are also discussed. Since findings regarding the efficacy of these interventions vary, further research is still required to elucidate their mechanisms of action, optimize treatment regimens, and determine their long-term effects on ASCVD outcomes. In conclusion, advancements in strategies addressing atherosclerosis prevention and plaque regression present promising avenues for enhancing primary ASCVD prevention through personalised approaches tailored to individual risk profiles. Nevertheless, ongoing research efforts are imperative to refine these strategies further and maximise their effectiveness in safeguarding cardiovascular health.
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Affiliation(s)
- Fotios Barkas
- Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.
| | - Yusuf Ziya Sener
- Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | | | - Azin Kheirkhah
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Elena Rodriguez-Sanchez
- Division of Cardiology, Department of Medicine, Department of Physiology, and Molecular Biology Institute, UCLA, Los Angeles, CA, USA
| | - Jan Novak
- 2(nd) Department of Internal Medicine, St. Anne's University Hospital in Brno and Faculty of Medicine of Masaryk University, Brno, Czech Republic; Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Maria Apellaniz-Ruiz
- Genomics Medicine Unit, Navarra Institute for Health Research - IdiSNA, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), Pamplona, Spain
| | - Ralph Kwame Akyea
- Centre for Academic Primary Care, School of Medicine, University of Nottingham, United Kingdom
| | - Vanessa Bianconi
- Department of Medicine and Surgery, University of Perugia, Italy
| | - Alexandr Ceasovschih
- Internal Medicine Department, Grigore T. Popa University of Medicine and Pharmacy, Iasi, Romania
| | - Ying Jie Chee
- Department of Endocrinology, Tan Tock Seng Hospital, Singapore
| | - Mariia Cherska
- Cardiology Department, Institute of Endocrinology and Metabolism, Kyiv, Ukraine
| | - Joana Rita Chora
- Unidade I&D, Grupo de Investigação Cardiovascular, Departamento de Promoção da Saúde e Doenças Não Transmissíveis, Instituto Nacional de Saúde Doutor Ricardo Jorge, Lisboa, Portugal; Universidade de Lisboa, Faculdade de Ciências, BioISI - Biosystems & Integrative Sciences Institute, Lisboa, Portugal
| | - Mario D'Oria
- Division of Vascular and Endovascular Surgery, Department of Medical Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Nadiia Demikhova
- Sumy State University, Sumy, Ukraine; Tallinn University of Technology, Tallinn, Estonia
| | | | - Antoine Rimbert
- Nantes Université, CNRS, INSERM, l'institut du Thorax, Nantes, France
| | - Chiara Macchi
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", Università Degli Studi di Milano, Milan, Italy
| | - Krishnaraj Rathod
- Centre for Cardiovascular Medicine and Devices, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom; Barts Interventional Group, Barts Heart Centre, St. Bartholomew's Hospital, London, United Kingdom
| | - Lynn Roth
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - Vasily Sukhorukov
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Petrovsky National Research Centre of Surgery, Moscow, Russia
| | - Svetlana Stoica
- "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania; Institute of Cardiovascular Diseases Timisoara, Timisoara, Romania
| | - Roberto Scicali
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Tatyana Storozhenko
- Cardiovascular Center Aalst, OLV Clinic, Aalst, Belgium; Department of Prevention and Treatment of Emergency Conditions, L.T. Malaya Therapy National Institute NAMSU, Kharkiv, Ukraine
| | - Jamol Uzokov
- Republican Specialized Scientific Practical Medical Center of Therapy and Medical Rehabilitation, Tashkent, Uzbekistan
| | | | - Emiel P C van der Vorst
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, 52074, Aachen, Germany; Aachen-Maastricht Institute for CardioRenal Disease (AMICARE), RWTH Aachen University, 52074, Aachen, Germany; Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, 80336, Munich, Germany; Interdisciplinary Center for Clinical Research (IZKF), RWTH Aachen University, 52074, Aachen, Germany
| | - Florentina Porsch
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
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3
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Fu Y, Liu H, Li K, Wei P, Alam N, Deng J, Li M, Wu H, He X, Hou H, Xia C, Wang R, Wang W, Bai L, Xu B, Li Y, Wu Y, Liu E, Zhao S. C-reactive protein deficiency ameliorates experimental abdominal aortic aneurysms. Front Immunol 2023; 14:1233807. [PMID: 37753091 PMCID: PMC10518468 DOI: 10.3389/fimmu.2023.1233807] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023] Open
Abstract
Background C-reactive protein (CRP) levels are elevated in patients with abdominal aortic aneurysms (AAA). However, it has not been investigated whether CRP contributes to AAA pathogenesis. Methods CRP deficient and wild type (WT) male mice were subjected to AAA induction via transient intra-aortic infusion of porcine pancreatic elastase. AAAs were monitored by in situ measurements of maximal infrarenal aortic external diameters immediately prior to and 14 days following elastase infusion. Key AAA pathologies were assessed by histochemical and immunohistochemical staining procedures. The influence of CRP deficiency on macrophage activation was evaluated in peritoneal macrophages in vitro. Results CRP protein levels were higher in aneurysmal than that in non-aneurysmal aortas. Aneurysmal aortic dilation was markedly suppressed in CRP deficient (aortic diameter: 1.08 ± 0.11 mm) as compared to WT (1.21 ± 0.08 mm) mice on day 14 after elastase infusion. More medial elastin was retained in CRP deficient than in WT elastase-infused mice. Macrophage accumulation was significantly less in aneurysmal aorta from CRP deficient than that from WT mice. Matrix metalloproteinase 2 expression was also attenuated in CRP deficient as compared to WT aneurysmal aortas. CRP deficiency had no recognizable influence on medial smooth muscle loss, lymphocyte accumulation, aneurysmal angiogenesis, and matrix metalloproteinase 9 expression. In in vitro assays, mRNA levels for tumor necrosis factor α and cyclooxygenase 2 were reduced in lipopolysaccharide activated peritoneal macrophages from CRP deficient as compared to wild type mice. Conclusion CRP deficiency suppressed experimental AAAs by attenuating aneurysmal elastin destruction, macrophage accumulation and matrix metalloproteinase 2 expression.
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Affiliation(s)
- Yu Fu
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Haole Liu
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Kexin Li
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Panpan Wei
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Naqash Alam
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Jie Deng
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Meng Li
- Department of Vascular Surgery, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Haibin Wu
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Xue He
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Haiwen Hou
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Congcong Xia
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Rong Wang
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Weirong Wang
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Liang Bai
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Baohui Xu
- Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Yankui Li
- Department of Vascular Surgery, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Yi Wu
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi’an, Shaanxi, China
| | - Enqi Liu
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Sihai Zhao
- Institute of Cardiovascular Science, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
- Department of Cardiology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
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4
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Sforzini L, Cattaneo A, Ferrari C, Turner L, Mariani N, Enache D, Hastings C, Lombardo G, Nettis MA, Nikkheslat N, Worrell C, Zajkowska Z, Kose M, Cattane N, Lopizzo N, Mazzelli M, Pointon L, Cowen PJ, Cavanagh J, Harrison NA, Jones D, Drevets WC, Mondelli V, Bullmore ET, Pariante CM. Higher immune-related gene expression in major depression is independent of CRP levels: results from the BIODEP study. Transl Psychiatry 2023; 13:185. [PMID: 37264010 PMCID: PMC10235092 DOI: 10.1038/s41398-023-02438-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 04/14/2023] [Accepted: 04/19/2023] [Indexed: 06/03/2023] Open
Abstract
Compelling evidence demonstrates that some individuals suffering from major depressive disorder (MDD) exhibit increased levels of inflammation. Most studies focus on inflammation-related proteins, such as serum or plasma C-reactive protein (CRP). However, the immune-related modifications associated with MDD may be not entirely captured by CRP alone. Analysing mRNA gene expression levels, we aimed to identify broader molecular immune-related phenotypes of MDD. We examined 168 individuals from the non-interventional, case-control, BIODEP study, 128 with a diagnosis of MDD and 40 healthy controls. Individuals with MDD were further divided according to serum high-sensitivity (hs)CRP levels (n = 59 with CRP <1, n = 33 with CRP 1-3 and n = 36 with CRP >3 mg/L). We isolated RNA from whole blood and performed gene expression analyses using RT-qPCR. We measured the expression of 16 immune-related candidate genes: A2M, AQP4, CCL2, CXCL12, CRP, FKBP5, IL-1-beta, IL-6, ISG15, MIF, GR, P2RX7, SGK1, STAT1, TNF-alpha and USP18. Nine of the 16 candidate genes were differentially expressed in MDD cases vs. controls, with no differences between CRP-based groups. Only CRP mRNA was clearly associated with serum CRP. In contrast, plasma (proteins) IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-16, IL-17A, IFN-gamma and TNF-alpha, and neutrophils counts, were all differentially regulated between CRP-based groups (higher in CRP >3 vs. CRP <1 and/or controls), reflecting the gradient of CRP values. Secondary analyses on MDD individuals and controls with CRP values <1 mg/L (usually interpreted as 'no inflammation') confirmed MDD cases still had significantly different mRNA expression of immune-related genes compared with controls. These findings corroborate an immune-related molecular activation in MDD, which appears to be independent of serum CRP levels. Additional biological mechanisms may then be required to translate this mRNA signature into inflammation at protein and cellular levels. Understanding these mechanisms will help to uncover the true immune abnormalities in depression, opening new paths for diagnosis and treatment.
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Affiliation(s)
- Luca Sforzini
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK.
| | - Annamaria Cattaneo
- Biological Psychiatric Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, 25125, Brescia, Italy
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Clarissa Ferrari
- Research and Clinical Trials Service, Fondazione Poliambulanza Istituto Ospedaliero, Brescia, 25124, Italy
| | - Lorinda Turner
- Department of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, CB2 0SZ, UK
| | - Nicole Mariani
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
| | - Daniela Enache
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
| | - Caitlin Hastings
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
| | - Giulia Lombardo
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
| | - Maria A Nettis
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
| | - Naghmeh Nikkheslat
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
| | - Courtney Worrell
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
| | - Zuzanna Zajkowska
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
| | - Melisa Kose
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
| | - Nadia Cattane
- Biological Psychiatric Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, 25125, Brescia, Italy
| | - Nicola Lopizzo
- Biological Psychiatric Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, 25125, Brescia, Italy
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Monica Mazzelli
- Biological Psychiatric Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, 25125, Brescia, Italy
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Linda Pointon
- Department of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, CB2 0SZ, UK
| | - Philip J Cowen
- University of Oxford Department of Psychiatry, Warneford Hospital, Oxford, OX3 7JX, UK
| | - Jonathan Cavanagh
- Centre for Immunobiology, School of Infection & Immunity, University of Glasgow, G12 8TA, Glasgow, Scotland
| | - Neil A Harrison
- School of Medicine, School of Psychology, Cardiff University Brain Research Imaging Centre, Maindy Road, Cardiff, CF24 4HQ, UK
| | - Declan Jones
- Neuroscience External Innovation, Janssen Pharmaceuticals, J&J Innovation Centre, London, W1G 0BG, UK
| | - Wayne C Drevets
- Janssen Research & Development, Neuroscience Therapeutic Area, 3210 Merryfield Row, San Diego, CA, 92121, USA
| | - Valeria Mondelli
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust, London, UK
| | - Edward T Bullmore
- Department of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, CB2 0SZ, UK
| | - Carmine M Pariante
- King's College London, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychological Medicine, Maurice Wohl Clinical Neuroscience Institute, London, SE5 9RT, UK
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust, London, UK
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5
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McCarthy WC, Sherlock LG, Grayck MR, Zheng L, Lacayo OA, Solar M, Orlicky DJ, Dobrinskikh E, Wright CJ. Innate Immune Zonation in the Liver: NF-κB (p50) Activation and C-Reactive Protein Expression in Response to Endotoxemia Are Zone Specific. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:1372-1385. [PMID: 36946778 PMCID: PMC10121917 DOI: 10.4049/jimmunol.2200900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/27/2023] [Indexed: 03/23/2023]
Abstract
Hepatic innate immune function plays an important role in the pathogenesis of many diseases. Importantly, a growing body of literature has firmly established the spatial heterogeneity of hepatocyte metabolic function; however, whether innate immune function is zonated remains unknown. To test this question, we exposed adult C57BL/6 mice to endotoxemia, and hepatic tissue was assessed for the acute phase response (APR). The zone-specific APR was evaluated in periportal and pericentral/centrilobular hepatocytes isolated using digitonin perfusion and on hepatic tissue using RNAscope and immunohistochemistry. Western blot, EMSA, chromatin immunoprecipitation, and immunohistochemistry were used to determine the role of the transcription factor NF-κB in mediating hepatic C-reactive protein (CRP) expression. Finally, the ability of mice lacking the NF-κB subunit p50 (p50-/-) to raise a hepatic APR was evaluated. We found that endotoxemia induces a hepatocyte transcriptional APR in both male and female mice, with Crp, Apcs, Fga, Hp, and Lbp expression being enriched in pericentral/centrilobular hepatocytes. Focusing our work on CRP expression, we determined that NF-κB transcription factor subunit p50 binds to consensus sequence elements present in the murine CRP promoter. Furthermore, pericentral/centrilobular hepatocyte p50 nuclear translocation is temporally associated with zone-specific APR during endotoxemia. Lastly, the APR and CRP expression is blunted in endotoxemic p50-/- mice. These results demonstrate that the murine hepatocyte innate immune response to endotoxemia includes zone-specific activation of transcription factors and target gene expression. These results support further study of zone-specific hepatocyte innate immunity and its role in the development of various disease states.
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Affiliation(s)
- William C. McCarthy
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Laura G. Sherlock
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Maya R. Grayck
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Lijun Zheng
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Oscar A. Lacayo
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Mack Solar
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - David J. Orlicky
- Dept of Pathology, University of Colorado Anschutz School of Medicine, Aurora, CO
| | - Evgenia Dobrinskikh
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
- Department of Medicine, University of Colorado School of Medicine, Aurora, CO
| | - Clyde J. Wright
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
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6
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Miao J, Guo H, Song G, Zhao Z, Hou L, Lu Q. Quantifying portable genetic effects and improving cross-ancestry genetic prediction with GWAS summary statistics. Nat Commun 2023; 14:832. [PMID: 36788230 PMCID: PMC9929290 DOI: 10.1038/s41467-023-36544-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
Polygenic risk scores (PRS) calculated from genome-wide association studies (GWAS) of Europeans are known to have substantially reduced predictive accuracy in non-European populations, limiting their clinical utility and raising concerns about health disparities across ancestral populations. Here, we introduce a statistical framework named X-Wing to improve predictive performance in ancestrally diverse populations. X-Wing quantifies local genetic correlations for complex traits between populations, employs an annotation-dependent estimation procedure to amplify correlated genetic effects between populations, and combines multiple population-specific PRS into a unified score with GWAS summary statistics alone as input. Through extensive benchmarking, we demonstrate that X-Wing pinpoints portable genetic effects and substantially improves PRS performance in non-European populations, showing 14.1%-119.1% relative gain in predictive R2 compared to state-of-the-art methods based on GWAS summary statistics. Overall, X-Wing addresses critical limitations in existing approaches and may have broad applications in cross-population polygenic risk prediction.
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Affiliation(s)
- Jiacheng Miao
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Hanmin Guo
- Center for Statistical Science, Department of Industrial Engineering, Tsinghua University, Beijing, 100084, China
| | - Gefei Song
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Zijie Zhao
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Lin Hou
- Center for Statistical Science, Department of Industrial Engineering, Tsinghua University, Beijing, 100084, China.
- MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
| | - Qiongshi Lu
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, 53706, USA.
- Department of Statistics, University of Wisconsin-Madison, Madison, WI, 53706, USA.
- Center for Demography of Health and Aging, University of Wisconsin-Madison, Madison, WI, 53706, USA.
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7
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Wang H, Bai C. The accurate expression pattern of acute phase marker C-reactive protein depends on the distal enhancer. CHINESE SCIENCE BULLETIN-CHINESE 2022. [DOI: 10.1360/tb-2022-0962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Non-fasting changes of Hs-CRP level in Chinese patients with coronary heart disease after a daily meal. Sci Rep 2022; 12:18435. [PMID: 36319655 PMCID: PMC9626540 DOI: 10.1038/s41598-022-20645-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 09/16/2022] [Indexed: 11/05/2022] Open
Abstract
High-sensitivity C-reactive protein (hs-CRP) is a key inflammatory factor in atherosclerotic cardiovascular diseases. In Chinese patients with coronary heart disease (CHD), the changes in hs-CRP levels after a daily meal and the effect of statins on those were never explored. A total of 300 inpatients with CHD were included in this study. Hs-CRP levels were measured in the fasting and non-fasting states at 2 h and 4 h after a daily breakfast. All inpatients were divided into two groups according to fasting hs-CRP ≤ 3 mg/L or not. Group with fasting hs-CRP ≤ 3 mg/L had a significantly higher percentage of patients with statins using ≥ 1 month (m) before admission than that with fasting hs-CRP > 3 mg/L (51.4% vs. 23.9%, P < 0.05). Hs-CRP levels increased significantly in the non-fasting state in two groups (P < 0.05). About 32% of patients with non-fasting hs-CRP > 3 mg/L came from those with fasting hs-CRP ≤ 3 mg/L. In conclusion, hs-CRP levels increased significantly in CHD patients after a daily meal. It suggested that the non-fasting hs-CRP level could be a better parameter to evaluate the inflammation state of CHD patients rather than fasting hs-CRP level.
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9
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Zeller J, Bogner B, McFadyen JD, Kiefer J, Braig D, Pietersz G, Krippner G, Nero TL, Morton CJ, Shing KSCT, Parker MW, Peter K, Eisenhardt SU. Transitional changes in the structure of C-reactive protein create highly pro-inflammatory molecules: Therapeutic implications for cardiovascular diseases. Pharmacol Ther 2022; 235:108165. [PMID: 35247517 DOI: 10.1016/j.pharmthera.2022.108165] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/28/2022] [Accepted: 02/28/2022] [Indexed: 02/08/2023]
Abstract
C-reactive protein (CRP) is the prototypic acute-phase reactant that has long been recognized almost exclusively as a marker of inflammation and predictor of cardiovascular risk. However, accumulating evidence indicates that CRP is also a direct pathogenic pro-inflammatory mediator in atherosclerosis and cardiovascular diseases. The 'CRP system' consists of at least two protein conformations with distinct pathophysiological functions. The binding of the native, pentameric CRP (pCRP) to activated cell membranes leads to a conformational change resulting in two highly pro-inflammatory isoforms, pCRP* and monomeric CRP (mCRP). The deposition of these pro-inflammatory isoforms has been shown to aggravate the localized tissue injury in a broad range of pathological conditions including atherosclerosis and thrombosis, myocardial infarction, and stroke. Here, we review recent findings on how these structural changes contribute to the inflammatory response and discuss the transitional changes in the structure of CRP as a novel therapeutic target in cardiovascular diseases and overshooting inflammation.
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Affiliation(s)
- J Zeller
- Department of Plastic and Hand Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany; Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.
| | - B Bogner
- Department of Plastic and Hand Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - J D McFadyen
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, Victoria, Australia
| | - J Kiefer
- Department of Plastic and Hand Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany
| | - D Braig
- Department of Plastic and Hand Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany; Division of Hand, Plastic and Aesthetic Surgery, University Hospital, LMU Munich, Munich, Germany
| | - G Pietersz
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; Department of Cardiometabolic Health, The University of Melbourne, Parkville, Victoria, Australia
| | - G Krippner
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - T L Nero
- Department of Cardiometabolic Health, The University of Melbourne, Parkville, Victoria, Australia; Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - C J Morton
- Department of Cardiometabolic Health, The University of Melbourne, Parkville, Victoria, Australia; Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - K S Cheung Tung Shing
- Department of Cardiometabolic Health, The University of Melbourne, Parkville, Victoria, Australia; Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Victoria, Australia
| | - M W Parker
- Department of Cardiometabolic Health, The University of Melbourne, Parkville, Victoria, Australia; Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Melbourne, Victoria, Australia; ACRF Rational Drug Discovery Centre, St. Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia.
| | - K Peter
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, Victoria, Australia; Department of Cardiometabolic Health, The University of Melbourne, Parkville, Victoria, Australia; Department of Immunology, Monash University, Melbourne, Victoria, Australia.
| | - S U Eisenhardt
- Department of Plastic and Hand Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Breisgau, Germany.
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10
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Wang MY, Zhang CM, Zhou HH, Ge ZB, Su CC, Lou ZH, Zhang XY, Xu TT, Li SY, Zhu L, Zhou YL, Wu Y, Ji SR. Identification of a distal enhancer that determines the expression pattern of acute phase marker C-reactive protein. J Biol Chem 2022; 298:102160. [PMID: 35724961 PMCID: PMC9287136 DOI: 10.1016/j.jbc.2022.102160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/09/2022] [Accepted: 06/11/2022] [Indexed: 11/18/2022] Open
Abstract
C-reactive protein (CRP) is a major acute phase protein and inflammatory marker, the expression of which is largely liver specific and highly inducible. Enhancers are regulatory elements critical for the precise activation of gene expression, yet the contributions of enhancers to the expression pattern of CRP have not been well defined. Here, we identify a constitutively active enhancer (E1) located 37.7 kb upstream of the promoter of human CRP in hepatocytes. By using chromatin immunoprecipitation, luciferase reporter assay, in situ genetic manipulation, CRISPRi, and CRISPRa, we show that E1 is enriched in binding sites for transcription factors STAT3 and C/EBP-β and is essential for the full induction of human CRP during the acute phase. Moreover, we demonstrate that E1 orchestrates with the promoter of CRP to determine its varied expression across tissues and species through surveying activities of E1-promoter hybrids and the associated epigenetic modifications. These results thus suggest an intriguing mode of molecular evolution wherein expression-changing mutations in distal regulatory elements initiate subsequent functional selection involving coupling among distal/proximal regulatory mutations and activity-changing coding mutations.
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Affiliation(s)
- Ming-Yu Wang
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China
| | - Chun-Miao Zhang
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China
| | - Hai-Hong Zhou
- Gansu Provincial Cancer Hospital, Lanzhou 730050, P.R. China
| | - Zhong-Bo Ge
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China
| | - Chen-Chen Su
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China
| | - Zi-Hao Lou
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xin-Yun Zhang
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China
| | - Tao-Tao Xu
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China
| | - Si-Yi Li
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China
| | - Li Zhu
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China; Electron Microscopy Centre of Lanzhou University, Lanzhou 730000, China
| | - Ya-Li Zhou
- Cuiying Biomedical Research Center, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Yi Wu
- MOE Key Laboratory of Environment and Genes Related to Diseases, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China; Key Laboratory of Precision Medicine to Pediatric Diseases of Shaanxi Province, Xi'an Children's Hospital, Xi'an Jiaotong University, Xi'an, P.R. China.
| | - Shang-Rong Ji
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, P.R. China.
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11
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Ngwa DN, Pathak A, Agrawal A. IL-6 regulates induction of C-reactive protein gene expression by activating STAT3 isoforms. Mol Immunol 2022; 146:50-56. [PMID: 35430542 PMCID: PMC9811655 DOI: 10.1016/j.molimm.2022.04.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/15/2022] [Accepted: 04/06/2022] [Indexed: 01/07/2023]
Abstract
C-reactive protein (CRP) is synthesized in hepatocytes. The serum concentration of CRP increases dramatically during the acute phase response. In human hepatoma Hep3B cells, maximal CRP expression occurs in cells treated with the combination of IL-6 and IL-1β. IL-6 induces transcription of the CRP gene and IL-1β synergistically enhances the effects of IL-6. We investigated the role of IL-6-activated transcription factor STAT3, also known as STAT3α, in inducing CRP expression since we identified four consensus STAT3-binding sites centered at positions - 72, - 108, - 134 and - 164 on the CRP promoter. It has been shown previously that STAT3 binds to the site at - 108 and induces CRP expression. We found that STAT3 also bound to the other three sites, and several STAT3-containing complexes were formed at each site, suggesting the presence of STAT3 isoforms and additional transcription factors in the complexes. Mutation of the STAT3 sites at - 108, - 134 or - 164 resulted in decreased CRP expression in response to IL-6 and IL-1β treatment, although the synergy between IL-6 and IL-1β was not affected by the mutations. The STAT3 site at - 72 could not be investigated employing mutagenesis. We also found that IL-6 activated two isoforms of STAT3 in Hep3B cells: STAT3α which contains both a DNA-binding domain and a transactivation domain and STAT3β which contains only the DNA-binding domain. Taken together, these findings raise the possibility that IL-6 not only induces CRP expression but also regulates the induction of CRP expression by activating STAT3 isoforms and by utilizing all four STAT3 sites.
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Affiliation(s)
- Donald N Ngwa
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Asmita Pathak
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
| | - Alok Agrawal
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA.
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12
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Sun YW, Chen KM, Atkins H, Aliaga C, Gordon T, Guttenplan JB, El-Bayoumy K. Effects of E-Cigarette Aerosols with Varying Levels of Nicotine on Biomarkers of Oxidative Stress and Inflammation in Mice. Chem Res Toxicol 2021; 34:1161-1168. [PMID: 33761748 DOI: 10.1021/acs.chemrestox.1c00033] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
To provide insights into the cause of e-cigarette (e-cig) associated lung injury, we examined the effects of propylene glycol (PG) and glycerol (G), two common solvent carriers used to deliver nicotine/flavor, on markers of oxidative stress and inflammation in female B6C3F1 mice which had been used successfully in tobacco smoke (TS)-induced lung carcinogenesis. Mice exposed to air and TS were used as negative and positive controls, respectively. Using LC-MS/MS, we showed that PG/G alone, in the absence of nicotine, significantly increased the levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG or its tautomer 8-oxodG), a biomarker of DNA oxidative damage, in lung and plasma of mice; moreover, addition of nicotine (12 and 24 mg/mL) in e-cig liquid appears to suppress the levels of 8-oxodG. Exposure to e-cig aerosols or TS induced nonsignificant increases of plasma C-reactive protein (CRP), a biomarker of inflammation; nonetheless, the levels of fibronectin (FN), a biomarker of tissue injury, were significantly increased by e-cig aerosols or TS. Although preliminary, our data showed that exposure to e-cig aerosols induced a higher score of lung injury than did control air or TS exposure. Our results indicate that the B6C3F1 mouse model may be suitable for an in-depth examination of the impact of e-cig on lung injury associated with oxidative stress and inflammation and this study adds to the growing evidence that the use of e-cig can lead to lung damage.
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Affiliation(s)
| | | | | | | | - Terry Gordon
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10010, United States
| | - Joseph B Guttenplan
- Department of Basic Science, New York University College of Dentistry, New York, New York 10010, United States
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13
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Dona AC, DeLouize AM, Eick G, Thiele E, Salinas Rodríguez A, Manrique Espinoza BS, Robledo R, Villalpando S, Naidoo N, Chatterji S, Kowal P, Snodgrass JJ. Inflammation and central adiposity as mediators of depression and uncontrolled diabetes in the study on global AGEing and adult health (SAGE). Am J Hum Biol 2020; 32:e23413. [PMID: 32222050 DOI: 10.1002/ajhb.23413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 02/22/2020] [Accepted: 03/09/2020] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVES Diabetes and depression are commonly present in the same individuals, suggesting the possibility of underlying shared physiological processes. Inflammation, as assessed with the biomarker C-reactive protein (CRP), has not consistently explained the observed relationship between diabetes and depression, although both are associated with inflammation and share proposed inflammatory mechanisms. Central adiposity has also been associated with both conditions, potentially by causing increased inflammation. This study uses the World Health Organization's Study on global AGEing and adult health (SAGE) Mexico Wave 1 biomarker data (n = 1831) to evaluate if inflammation and central adiposity mediate the relationship between depression and diabetes. METHODS Depression was estimated using a behavior-based diagnostic algorithm, inflammation using venous dried blood spot (DBS) CRP, central adiposity using waist-to-height ratio (WHtR), and uncontrolled diabetes using venous DBS-glycated hemoglobin (HbA1c). RESULTS The association between depression and uncontrolled diabetes was partially mediated by CRP before but not after WHtR was considered. When WHtR was added to the model, it partially mediated the relationship between diabetes and depression while fully mediating the relationship between depression and CRP. CONCLUSIONS These findings suggest that central adiposity may be a more significant mediator between diabetes and depression than inflammation and account for the relationship between these disorders and inflammation. Depression may cause an increase in central adiposity, which then may lead to diabetes, but the increase in known systemic inflammatory pathways caused by central adiposity may not be the key pathological mechanism.
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Affiliation(s)
- Allison C Dona
- Department of Anthropology, University of Oregon, Eugene, Oregon, USA
| | - Alicia M DeLouize
- Department of Anthropology, University of Oregon, Eugene, Oregon, USA
| | - Geeta Eick
- Department of Anthropology, University of Oregon, Eugene, Oregon, USA
| | - Elizabeth Thiele
- Department of Biology, Vassar College, Poughkeepsie, New York, USA
| | | | | | - Ricardo Robledo
- Nutrition and Health Investigation Center, National Institute of Public Health Laboratory, Cuernavaca, Morelos, Mexico
| | - Salvador Villalpando
- Nutrition and Health Investigation Center, National Institute of Public Health Laboratory, Cuernavaca, Morelos, Mexico
| | - Nirmala Naidoo
- Department of Health Statistics and Information Systems, World Health Organization SAGE, Geneva, Switzerland
| | - Somnath Chatterji
- Department of Health Statistics and Information Systems, World Health Organization SAGE, Geneva, Switzerland
| | - Paul Kowal
- Department of Anthropology, University of Oregon, Eugene, Oregon, USA.,Department of Health Statistics and Information Systems, World Health Organization SAGE, Geneva, Switzerland.,Research Centre for Generational Health and Ageing, University of Newcastle, Newcastle, Australia
| | - J Josh Snodgrass
- Department of Anthropology, University of Oregon, Eugene, Oregon, USA
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14
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King Thomas J, Mir H, Kapur N, Singh S. Racial Differences in Immunological Landscape Modifiers Contributing to Disparity in Prostate Cancer. Cancers (Basel) 2019; 11:cancers11121857. [PMID: 31769418 PMCID: PMC6966521 DOI: 10.3390/cancers11121857] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/13/2019] [Accepted: 11/15/2019] [Indexed: 12/20/2022] Open
Abstract
Prostate cancer affects African Americans disproportionately by exhibiting greater incidence, rapid disease progression, and higher mortality when compared to their Caucasian counterparts. Additionally, standard treatment interventions do not achieve similar outcome in African Americans compared to Caucasian Americans, indicating differences in host factors contributing to racial disparity. African Americans have allelic variants and hyper-expression of genes that often lead to an immunosuppressive tumor microenvironment, possibly contributing to more aggressive tumors and poorer disease and therapeutic outcomes than Caucasians. In this review, we have discussed race-specific differences in external factors impacting internal milieu, which modify immunological topography as well as contribute to disparity in prostate cancer.
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Affiliation(s)
- Jeronay King Thomas
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA; (J.K.T.); (H.M.); (N.K.)
- Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Hina Mir
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA; (J.K.T.); (H.M.); (N.K.)
- Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Neeraj Kapur
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA; (J.K.T.); (H.M.); (N.K.)
- Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Shailesh Singh
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA; (J.K.T.); (H.M.); (N.K.)
- Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
- Correspondence: ; Tel.: +1-404-756-5718; Fax: +1-404-752-1179
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15
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Hormonal regulation of visfatin gene in avian Leghorn male hepatoma (LMH) cells. Comp Biochem Physiol A Mol Integr Physiol 2019; 240:110592. [PMID: 31669171 DOI: 10.1016/j.cbpa.2019.110592] [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: 08/20/2019] [Revised: 10/07/2019] [Accepted: 10/22/2019] [Indexed: 01/08/2023]
Abstract
Visfain has been extensively studied in mammals and has been shown to play an important role in obesity and insulin resistance. However, there is a paucity of information on visfatin regulation in non-mammalian species. After characterization of chicken visfatin gene, we undertook this study to determine its hormonal regulation in avian (non-mammalian) liver cells. Addition of 5 ng/mL TNFα, 100 ng/mL leptin, 1, 3, 10 or 100 ng/mL T3 for 24 h upregulated visfatin gene expression by 1.2, 1.8, 1.95, 1.75, 1.80, and 2.45 folds (P < .05), respectively, compared to untreated LMH cells. Administration of 10 ng/mL of orexin A significantly down regulated visfatin gene expression by 1.35 folds compared to control cells. In contrast, treatment with IL-6 or orexin B for 24 h did not influence visfatin mRNA abundance. These pro-inflammatory cytokines and obesity-related hormones modulate the expression of CRP, INSIG2, and nuclear orphan receptors. Hepatic CRP gene expression was significantly upregulated by IL-6, TNFα, orexin B, and T3 and down regulated by leptin and orexin A. LXR mRNA abundances were increased by orexin A, decreased by orexin B, and T3, and did not affected by IL6, TNFα, or leptin. The expression of FXR gene was induced by IL-6, leptin, and T3, but it was not influenced by TNFα, orexin A or B. CXR gene expression was up regulated by TNFα, leptin, orexin B, and T3, down regulated by 5 ng/mL orexin A, and did not affected by IL-6. INSIG2 mRNA levels were increased by TNFα (5 ng/mL), leptin (100 ng/mL), and T3 (1, 3, 10, and 100 ng/mL), decreased by orexin A, and remained unchanged with IL-6 or orexin B treatment. Together, this is the first report showing hormonal regulation of visfatin in avian hepatocyte cells and suggesting a potential role of CRP, INSIG2, and nuclear orphan receptor LXR, FXR, and CXR in mediating these hormonal effects.
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16
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Fan Z, Li N, Xu Z, Wu J, Fan X, Xu Y. An interaction between MKL1, BRG1, and C/EBPβ mediates palmitate induced CRP transcription in hepatocytes. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2019; 1862:194412. [PMID: 31356989 DOI: 10.1016/j.bbagrm.2019.194412] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 12/11/2022]
Abstract
Non-alcoholic steatohepatitis (NASH) is one of the most predominant disorders in metabolic syndrome. Induction of pro-inflammatory mediators in hepatocytes exposed to free fatty acids represents a hallmark event during NASH pathogenesis. C-reactive protein (CRP) is a prototypical pro-inflammatory mediator. In the present study, we investigated the mechanism by which megakaryocytic leukemia 1 (MKL1) mediates palmitate (PA) induced CRP transcription in hepatocytes. We report that over-expression of MKL1, but not MKL2, activated the CRP promoter whereas depletion or inhibition of MKL1 repressed the CRP promoter. MKL1 potentiated the induction of the CRP promoter activity by PA treatment. Importantly, MKL1 knockdown by siRNA or pharmaceutical inhibition by CCG-1423 attenuated the induction of endogenous CRP expression in hepatocytes. Similarly, primary hepatocytes isolated from wild type (WT) mice produced more CRP than those isolated from MKL1 deficient (KO) mice when stimulated with PA. Mechanistically, the sequence-specific transcription factor CCAAT-enhancer-binding protein (C/EBPβ) interacted with MKL1 and recruited MKL1 to activate CRP transcription. Reciprocally, MKL1 modulated C/EBPβ activity by recruiting the chromatin remodeling protein BRG1 to the CRP promoter to alter histone modifications. In conclusion, our data delineate a novel epigenetic mechanism underlying augmented hepatic inflammation during NASH pathogenesis.
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Affiliation(s)
- Zhiwen Fan
- Department of Pathology, Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Nan Li
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Zheng Xu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Jiahao Wu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Xiangshan Fan
- Department of Pathology, Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.
| | - Yong Xu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China; Institute of Biomedical Research, Liaocheng University, Liaocheng, China.
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17
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M1 Macrophages but Not M2 Macrophages Are Characterized by Upregulation of CRP Expression via Activation of NFκB: a Possible Role for Ox-LDL in Macrophage Polarization. Inflammation 2018; 41:1477-1487. [DOI: 10.1007/s10753-018-0793-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Samblas M, Milagro FI, Mansego ML, Marti A, Martinez JA. PTPRS and PER3 methylation levels are associated with childhood obesity: results from a genome-wide methylation analysis. Pediatr Obes 2018; 13:149-158. [PMID: 28614626 DOI: 10.1111/ijpo.12224] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 04/07/2017] [Accepted: 05/01/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND The global prevalence of childhood overweight and obesity has increased in the last years. Epigenetic dysregulation affecting gene expression could be a determinant in early-life obesity onset and accompanying complications. OBJECTIVE The aim of the present investigation was to analyse the putative association between DNA methylation and childhood obesity. METHODS DNA was isolated from white blood cells of 24 children obtained from the GENOI study and was hybridized in a 450K methylation array. Two CpG sites associated with obesity were validated in 91 children by MassArray® EpiTyper™ technology. RESULTS Genome-wide analysis identified 734 CpGs (783 genes) differentially methylated between cases (n = 12) and controls (n = 12). Ingenuity Pathway Analysis showed that these genes were involved in oxidative stress and circadian rhythm signalling pathways. Moreover, the DNA methylation levels of VIPR2, GRIN2D, ADCYAP1R1, PER3 and PTPRS regions correlated with the obesity trait. EpiTyper™ validation also identified significant correlations between methylation levels of CpG sites on PTPRS and PER3 with BMI z-score. CONCLUSIONS This study identified several CpG sites and specifically several CpGs in the PTPRS and PER3 genes differentially methylated between obese and non-obese children, suggesting a role for DNA methylation concerning development of childhood obesity.
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Affiliation(s)
- M Samblas
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain
| | - F I Milagro
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity, Carlos III Institute, Madrid, Spain
| | - M L Mansego
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain
| | - A Marti
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity, Carlos III Institute, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity, Carlos III Institute, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
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19
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Ubiquitin-Specific Protease 2 Modulates the Lipopolysaccharide-Elicited Expression of Proinflammatory Cytokines in Macrophage-like HL-60 Cells. Mediators Inflamm 2017; 2017:6909415. [PMID: 29138532 PMCID: PMC5613470 DOI: 10.1155/2017/6909415] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/21/2017] [Accepted: 07/30/2017] [Indexed: 12/13/2022] Open
Abstract
We investigated the regulatory roles of USP2 in mRNA accumulation of proinflammatory cytokines in macrophage-like cells after stimulation with a toll-like receptor (TLR) 4 ligand, lipopolysaccharide (LPS). Human macrophage-like HL-60 cells, mouse macrophage-like J774.1 cells, and mouse peritoneal macrophages demonstrated negative feedback to USP2 mRNA levels after LPS stimulation, suggesting that USP2 plays a significant role in LPS-stimulated macrophages. USP2 knockdown (KD) by short hairpin RNA in HL-60 cells promoted the accumulation of transcripts for 25 of 104 cytokines after LPS stimulation. In contrast, limited induction of cytokines was observed in cells forcibly expressing the longer splice variant of USP2 (USP2A), or in peritoneal macrophages isolated from Usp2a transgenic mice. An ubiquitin isopeptidase-deficient USP2A mutant failed to suppress LPS-induced cytokine expression, suggesting that protein ubiquitination contributes to USP2-mediated cytokine repression. Although USP2 deficiency did not accelerate TNF receptor-associated factor (TRAF) 6-nuclear factor-κB (NF-κB) signaling, it increased the DNA binding ratio of the octamer binding transcription factor (Oct)-1 to Oct-2 in TNF, CXCL8, CCL4, and IL6 promoters. USP2 decreased nuclear Oct-2 protein levels in addition to decreasing the polyubiquitination of Oct-1. In summary, USP2 modulates proinflammatory cytokine induction, possibly through modification of Oct proteins, in macrophages following TLR4 activation.
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20
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Barosi G, Massa M, Campanelli R, Fois G, Catarsi P, Viarengo G, Villani L, Poletto V, Bosoni T, Magrini U, Gale RP, Rosti V. Primary myelofibrosis: Older age and high JAK2 V617F allele burden are associated with elevated plasma high-sensitivity C-reactive protein levels and a phenotype of progressive disease. Leuk Res 2017. [DOI: 10.1016/j.leukres.2017.06.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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21
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Chawes BL, Stokholm J, Schoos AMM, Fink NR, Brix S, Bisgaard H. Allergic sensitization at school age is a systemic low-grade inflammatory disorder. Allergy 2017; 72:1073-1080. [PMID: 27992959 DOI: 10.1111/all.13108] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Systemic low-grade inflammation has been demonstrated in a range of the frequent noncommunicable diseases (NCDs) proposing a shared mechanism, but is largely unexplored in relation to allergic sensitization. We therefore aimed to investigate the possible association with childhood allergic sensitization. METHODS High-sensitivity C-reactive protein (hs-CRP), interleukin-1β (IL-1β), IL-6, tumor necrosis factor-α (TNF-α), and chemokine (C-X-C motif) ligand 8 (CXCL8) were measured in plasma at age 6 months (N = 214) and 7 years (N = 277) in children from the Copenhagen Prospective Studies on Asthma in Childhood2000 (COPSAC2000 ) birth cohort. Allergic sensitization against common inhalant and food allergens was determined longitudinally at ages ½, 1½, 4 and 6 years by specific IgE assessments and skin prick tests. Associations between inflammatory biomarkers and sensitization phenotypes were tested with logistic regression and principal component analyses (PCAs). RESULTS Adjusted for gender, recent infections, and a CRP genetic risk score, hs-CRP at 7 years was associated with concurrent elevated specific IgE against any allergen [adjusted OR (aOR) = 1.40; 95% CI, 1.14-1.72; P = 0.001], aeroallergens (aOR, 1.43; 1.15-1.77; P = 0.001), food allergens (aOR, 1.31; 95% CI, 1.02-1.67; P = 0.04), sensitization without any clinical allergy symptoms (aOR = 1.40; 1.06-1.85; P = 0.02), and with similar findings for skin prick tests. The other inflammatory markers were not univariately associated with sensitization, but multiparametric PCA suggested a specific inflammatory response among sensitized children. Inflammatory markers at age 6 months were not associated with subsequent development of sensitization phenotypes. CONCLUSIONS Elevated hs-CRP is associated with allergic sensitization in school-aged children suggesting systemic low-grade inflammation as a phenotypic characteristic of this early-onset NCD.
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Affiliation(s)
- B. L. Chawes
- COPSAC; Copenhagen Prospective Studies on Asthma in Childhood; Herlev and Gentofte Hospital; University of Copenhagen; Copenhagen Denmark
| | - J. Stokholm
- COPSAC; Copenhagen Prospective Studies on Asthma in Childhood; Herlev and Gentofte Hospital; University of Copenhagen; Copenhagen Denmark
- Department of Pediatrics; Naestved Hospital; Naestved Denmark
| | - A.-M. M. Schoos
- COPSAC; Copenhagen Prospective Studies on Asthma in Childhood; Herlev and Gentofte Hospital; University of Copenhagen; Copenhagen Denmark
| | - N. R. Fink
- COPSAC; Copenhagen Prospective Studies on Asthma in Childhood; Herlev and Gentofte Hospital; University of Copenhagen; Copenhagen Denmark
| | - S. Brix
- Department of Systems Biology; Center for Biological Sequence Analysis; Technical University of Denmark; Lyngby Denmark
| | - H. Bisgaard
- COPSAC; Copenhagen Prospective Studies on Asthma in Childhood; Herlev and Gentofte Hospital; University of Copenhagen; Copenhagen Denmark
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22
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Dasgupta N, Thakur BK, Ta A, Das S, Banik G, Das S. Polo-like kinase 1 expression is suppressed by CCAAT/enhancer-binding protein α to mediate colon carcinoma cell differentiation and apoptosis. Biochim Biophys Acta Gen Subj 2017; 1861:1777-1787. [PMID: 28341486 DOI: 10.1016/j.bbagen.2017.03.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/12/2017] [Accepted: 03/18/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND Human polo-like kinase 1 (PLK1), a highly conserved serine/threonine kinase is a key player in several essential cell-cycle events. PLK1 is considered an oncogene and its overexpression often correlates with poor prognosis of cancers, including colorectal cancer (CRC). However, regulation of PLK1 expression in colorectal cells was never studied earlier and it is currently unknown if PLK1 regulates differentiation and apoptosis of CRC. METHODS PLK1 expression was analyzed by real-time PCR and western blotting. Transcriptional regulation was studied by reporter assay, gene knock-down, EMSA and ChIP. RESULTS PLK1 expression was down-regulated during butyrate-induced differentiation of HT-29 and other CRC cells. Also, PLK1 down-regulation mediated the role of butyrate in CRC differentiation and apoptosis. We report here a novel transcriptional regulation of PLK1 by butyrate. Transcription factors CCAAT/enhancer-binding protein α (C/EBPα) and Oct-1 share an overlapping binding site over the PLK1 promoter. Elevated levels of C/EBPα by butyrate treatment of CRC cells competed out the activator protein Oct-1 from binding to the PLK1 promoter and sequestered it. Binding of C/EBPα was associated with increased deacetylation near the transcription start site (TSS) of the PLK1 promoter, which abrogated transcription through reduced recruitment of RNA polymerase II. We also found a synergistic role between the synthetic PLK1-inhibitor SBE13 and butyrate on the apoptosis of CRC cells. CONCLUSION This study offered a novel p53-independent regulation of PLK1 during CRC differentiation and apoptosis. GENERAL SIGNIFICANCE Down-regulation of PLK1 is one of the mechanisms underlying the anti-cancer role of dietary fibre-derived butyrate in CRC.
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Affiliation(s)
- Nirmalya Dasgupta
- National Institute of Cholera & Enteric Diseases (ICMR), Clinical Medicine, P-33, CIT Road, Scheme-XM, Beliaghata, Kolkata 700010, West Bengal, India; Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Road, La Jolla, CA 92037, United States
| | - Bhupesh Kumar Thakur
- National Institute of Cholera & Enteric Diseases (ICMR), Clinical Medicine, P-33, CIT Road, Scheme-XM, Beliaghata, Kolkata 700010, West Bengal, India
| | - Atri Ta
- National Institute of Cholera & Enteric Diseases (ICMR), Clinical Medicine, P-33, CIT Road, Scheme-XM, Beliaghata, Kolkata 700010, West Bengal, India
| | - Sayan Das
- National Institute of Cholera & Enteric Diseases (ICMR), Clinical Medicine, P-33, CIT Road, Scheme-XM, Beliaghata, Kolkata 700010, West Bengal, India
| | - George Banik
- BD Biosciences, Salt Lake, Kolkata 700102, India
| | - Santasabuj Das
- National Institute of Cholera & Enteric Diseases (ICMR), Clinical Medicine, P-33, CIT Road, Scheme-XM, Beliaghata, Kolkata 700010, West Bengal, India.
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23
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Thirumalai A, Singh SK, Hammond DJ, Gang TB, Ngwa DN, Pathak A, Agrawal A. Purification of recombinant C-reactive protein mutants. J Immunol Methods 2017; 443:26-32. [PMID: 28167277 DOI: 10.1016/j.jim.2017.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/09/2017] [Accepted: 01/17/2017] [Indexed: 12/18/2022]
Abstract
C-reactive protein (CRP) is an evolutionarily conserved protein, a component of the innate immune system, and an acute phase protein in humans. In addition to its raised level in blood in inflammatory states, CRP is also localized at sites of inflammation including atherosclerotic lesions, arthritic joints and amyloid plaque deposits. Results of in vivo experiments in animal models of inflammatory diseases indicate that CRP is an anti-pneumococcal, anti-atherosclerotic, anti-arthritic and an anti-amyloidogenic molecule. The mechanisms through which CRP functions in inflammatory diseases are not fully defined; however, the ligand recognition function of CRP in its native and non-native pentameric structural conformations and the complement-activating ability of ligand-complexed CRP have been suggested to play a role. One tool to understand the structure-function relationships of CRP and determine the contributions of the recognition and effector functions of CRP in host defense is to employ site-directed mutagenesis to create mutants for experimentation. For example, CRP mutants incapable of binding to phosphocholine are generated to investigate the importance of the phosphocholine-binding property of CRP in mediating host defense. Recombinant CRP mutants can be expressed in mammalian cells and, if expressed, can be purified from the cell culture media. While the methods to purify wild-type CRP are well established, different purification strategies are needed to purify various mutant forms of CRP if the mutant does not bind to either calcium or phosphocholine. In this article, we report the methods used to purify pentameric recombinant wild-type and mutant CRP expressed in and secreted by mammalian cells.
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Affiliation(s)
- Avinash Thirumalai
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, United States
| | - Sanjay K Singh
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, United States
| | - David J Hammond
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, United States
| | - Toh B Gang
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, United States
| | - Donald N Ngwa
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, United States
| | - Asmita Pathak
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, United States
| | - Alok Agrawal
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, United States.
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24
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Vázquez-Arreguín K, Tantin D. The Oct1 transcription factor and epithelial malignancies: Old protein learns new tricks. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1859:792-804. [PMID: 26877236 PMCID: PMC4880489 DOI: 10.1016/j.bbagrm.2016.02.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 02/06/2016] [Accepted: 02/09/2016] [Indexed: 01/29/2023]
Abstract
The metazoan-specific POU domain transcription factor family comprises activities underpinning developmental processes such as embryonic pluripotency and neuronal specification. Some POU family proteins efficiently bind an 8-bp DNA element known as the octamer motif. These proteins are known as Oct transcription factors. Oct1/POU2F1 is the only widely expressed POU factor. Unlike other POU factors it controls no specific developmental or organ system. Oct1 was originally described to operate at target genes associated with proliferation and immune modulation, but more recent results additionally identify targets associated with oxidative and cytotoxic stress resistance, metabolic regulation, stem cell function and other unexpected processes. Oct1 is pro-oncogenic in multiple contexts, and several recent reports provide broad evidence that Oct1 has prognostic and therapeutic value in multiple epithelial tumor settings. This review focuses on established and emerging roles of Oct1 in epithelial tumors, with an emphasis on mechanisms of transcription regulation by Oct1 that may underpin these findings. This article is part of a Special Issue entitled: The Oct Transcription Factor Family, edited by Dr. Dean Tantin.
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Affiliation(s)
- Karina Vázquez-Arreguín
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Dean Tantin
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA.
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25
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Kirchner B, Pfaffl MW, Dumpler J, von Mutius E, Ege MJ. microRNA in native and processed cow's milk and its implication for the farm milk effect on asthma. J Allergy Clin Immunol 2015; 137:1893-1895.e13. [PMID: 26707195 DOI: 10.1016/j.jaci.2015.10.028] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 09/14/2015] [Accepted: 10/08/2015] [Indexed: 02/02/2023]
Affiliation(s)
- Benedikt Kirchner
- Animal Science/Physiology, Technical University Munich, Freising, Germany
| | - Michael W Pfaffl
- Animal Science/Physiology, Technical University Munich, Freising, Germany
| | - Joseph Dumpler
- Food Process Engineering and Dairy Technology, Technical University Munich, Freising, Germany
| | - Erika von Mutius
- Dr von Hauner Children's Hospital, Ludwig-Maximilians-Universität, Munich, Germany, a member of the German Center for Lung Research (DZL)
| | - Markus J Ege
- Dr von Hauner Children's Hospital, Ludwig-Maximilians-Universität, Munich, Germany, a member of the German Center for Lung Research (DZL).
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26
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Posttranscriptional Regulation of the Inflammatory Marker C-Reactive Protein by the RNA-Binding Protein HuR and MicroRNA 637. Mol Cell Biol 2015; 35:4212-21. [PMID: 26438598 DOI: 10.1128/mcb.00645-15] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 09/28/2015] [Indexed: 12/14/2022] Open
Abstract
C-reactive protein (CRP), an acute-phase plasma protein, is a major component of inflammatory reactions functioning as a mediator of innate immunity. It has been widely used as a validated clinical biomarker of the inflammatory state in trauma, infection, and age-associated chronic diseases, including cancer and cardiovascular disease (CVD). Despite this, the molecular mechanisms that regulate CRP expression are not well understood. Given that the CRP 3' untranslated region (UTR) is long and AU rich, we hypothesized that CRP may be regulated posttranscriptionally by RNA-binding proteins (RBPs) and by microRNAs. Here, we found that the RBP HuR bound directly to the CRP 3' UTR and affected CRP mRNA levels. Through this interaction, HuR selectively increased CRP mRNA stability and promoted CRP translation. Interestingly, treatment with the age-associated inflammatory cytokine interleukin-6 (IL-6) increased binding of HuR to CRP mRNA, and conversely, HuR was required for IL-6-mediated upregulation of CRP expression. In addition, we identified microRNA 637 (miR-637) as a microRNA that potently inhibited CRP expression in competition with HuR. Taken together, we have uncovered an important posttranscriptional mechanism that modulates the expression of the inflammatory marker CRP, which may be utilized in the development of treatments for inflammatory processes that cause CVD and age-related diseases.
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27
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Singer RE, Moss K, Kim SJ, Beck JD, Offenbacher S. Oxidative Stress and IgG Antibody Modify Periodontitis-CRP Association. J Dent Res 2015; 94:1698-705. [PMID: 26318589 DOI: 10.1177/0022034515602693] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In a previous report, we demonstrated the inverse association of high serum 8-isoprostane levels, a marker for oxidative stress, with decreased serum IgG antibodies to oral bacteria. The association between increased serum IgG with increased plaque and periodontitis (increased probing depths) was attenuated by high systemic oxidative stress. Other investigations have reported a role for systemic oxidative stress as a stimulus of hepatic C-reactive protein (CRP) response. These observations led us to hypothesize that the reported relationship of periodontitis to elevated serum CRP, a systemic inflammatory marker, may be modified by oxidative stress and that the levels of serum antibodies to oral bacteria might be an intermediary explanatory variable linking the association of systemic oxidative stress, periodontal disease, and levels of CRP. This hypothesis was explored as a secondary analysis of the Dental ARIC (Atherosclerosis Risk in Communities) study using serum levels of CRP, serum IgG levels to 16 oral organisms, serum levels of 8-isoprostane, and periodontal status. The findings indicate periodontitis is associated with high CRP in the presence of elevated oxidative stress that serves to suppress the IgG response. Only within the highest 8-isoprostane quartile was periodontitis (pocket depth) associated with increased serum CRP levels (P = 0.0003). Increased serum IgG antibody levels to oral bacteria were associated with lowered serum CRP levels. Thus, systemic oxidative stress, which has been demonstrated to be associated with increased levels of CRP in other studies, appears to be associated with the suppression of bacterial-specific IgG levels, which in the presence of periodontal disease can result in an enhanced systemic CRP response. Conversely, individuals with increased serum IgG antibodies to plaque bacteria exhibit lowered serum CRP levels. These 2 factors, oxidative stress and the serum IgG response, appear to function in opposing directions to modify serum levels of CRP and the association with periodontitis.
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Affiliation(s)
- R E Singer
- Center for Oral and Systemic Diseases and Department of Periodontology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
| | - K Moss
- Center for Oral and Systemic Diseases and Department of Dental Ecology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
| | - S J Kim
- Center for Oral and Systemic Diseases and Department of Periodontology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
| | - J D Beck
- Center for Oral and Systemic Diseases and Department of Dental Ecology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
| | - S Offenbacher
- Center for Oral and Systemic Diseases and Department of Periodontology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
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28
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Víctor VM, Rovira-Llopis S, Saiz-Alarcón V, Sangüesa MC, Rojo-Bofill L, Bañuls C, de Pablo C, Álvarez Á, Rojo L, Rocha M, Hernández-Mijares A. Involvement of leucocyte/endothelial cell interactions in anorexia nervosa. Eur J Clin Invest 2015; 45:670-8. [PMID: 25944525 DOI: 10.1111/eci.12454] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 04/22/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND Anorexia nervosa is a common psychiatric disorder in adolescence and is related to cardiovascular complications. Our aim was to study the effect of anorexia nervosa on metabolic parameters, leucocyte-endothelium interactions, adhesion molecules and proinflammatory cytokines. MATERIALS AND METHODS This multicentre, cross-sectional, case-control study employed a population of 24 anorexic female patients and 36 controls. We evaluated anthropometric and metabolic parameters, interactions between leucocytes polymorphonuclear neutrophils (PMN) and human umbilical vein endothelial cells (HUVEC), proinflammatory cytokines such as tumour necrosis factor alpha (TNF-α) and interleukin-6 (IL-6) and soluble cellular adhesion molecules (CAMs) including E-selectin, vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1). RESULTS Anorexia nervosa was related to a decrease in weight, body mass index, waist circumference, systolic blood pressure, glucose, insulin and HOMA-IR, and an increase in HDL cholesterol. These effects disappeared after adjusting for BMI. Anorexia nervosa induced a decrease in PMN rolling velocity and an increase in PMN rolling flux and PMN adhesion. Increases in IL-6 and TNF-α and adhesion molecule VCAM-1 were also observed. CONCLUSIONS This study supports the hypothesis of an association between anorexia nervosa, inflammation and the induction of leucocyte-endothelium interactions. These findings may explain, in part at least, the increased risk of vascular disease among patients with anorexia nervosa.
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Affiliation(s)
- Víctor M Víctor
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain.,Service of Endocrinology, University Hospital Doctor Peset, Valencia, Spain.,Institute of Health Research INCLIVA, University of Valencia, Valencia, Spain.,Department of Physiology, University of Valencia, Valencia, Spain
| | - Susana Rovira-Llopis
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain.,Service of Endocrinology, University Hospital Doctor Peset, Valencia, Spain.,Institute of Health Research INCLIVA, University of Valencia, Valencia, Spain
| | | | | | | | - Celia Bañuls
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain.,Service of Endocrinology, University Hospital Doctor Peset, Valencia, Spain.,Institute of Health Research INCLIVA, University of Valencia, Valencia, Spain
| | - Carmen de Pablo
- Department of Pharmacology and CIBER CB06/04/0071 Research Group, CIBER Hepatic and Digestive Diseases, University of Valencia, Valencia, Spain
| | - Ángeles Álvarez
- Department of Pharmacology and CIBER CB06/04/0071 Research Group, CIBER Hepatic and Digestive Diseases, University of Valencia, Valencia, Spain.,Fundacion General de la Universidad de Valencia, Valencia, Spain
| | - Luis Rojo
- Psychiatry Service, University Hospital La Fe, Valencia, Spain.,Research Group CIBER CB/06/02/0045 CIBER actions - Epidemiology and Public Health, University of Valencia, Valencia, Spain.,Department of Medicine, University of Valencia, Valencia, Spain
| | - Milagros Rocha
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain.,Service of Endocrinology, University Hospital Doctor Peset, Valencia, Spain.,Institute of Health Research INCLIVA, University of Valencia, Valencia, Spain
| | - Antonio Hernández-Mijares
- Foundation for the Promotion of Healthcare and Biomedical Research in the Valencian Community (FISABIO), Valencia, Spain.,Service of Endocrinology, University Hospital Doctor Peset, Valencia, Spain.,Institute of Health Research INCLIVA, University of Valencia, Valencia, Spain.,Department of Medicine, University of Valencia, Valencia, Spain
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29
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Chawes BLK, Stokholm J, Bønnelykke K, Brix S, Bisgaard H. Neonates with reduced neonatal lung function have systemic low-grade inflammation. J Allergy Clin Immunol 2015; 135:1450-6.e1. [PMID: 25579483 PMCID: PMC7173110 DOI: 10.1016/j.jaci.2014.11.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 11/14/2014] [Accepted: 11/14/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Children and adults with asthma and impaired lung function have been reported to have low-grade systemic inflammation, but it is unknown whether this inflammation starts before symptoms and in particular whether low-grade inflammation is present in asymptomatic neonates with reduced lung function. OBJECTIVE We sought to investigate the possible association between neonatal lung function and biomarkers of systemic inflammation. METHODS Plasma levels of high-sensitivity C-reactive protein (hs-CRP), IL-1β, IL-6, TNF-α, and CXCL8 (IL-8) were measured at age 6 months in 300 children of the Copenhagen Prospective Study on Asthma in Childhood2000 birth cohort who had completed neonatal lung function testing at age 4 weeks. Associations between neonatal lung function indices and inflammatory biomarkers were investigated by conventional statistics and unsupervised principal component analysis. RESULTS The neonatal forced expiratory volume at 0.5 seconds was inversely associated with hs-CRP (β-coefficient, -0.12; 95% CI, -0.21 to -0.04; P < .01) and IL-6 (β-coefficient, -0.10; 95% CI, -0.18 to -0.01; P = .03) levels. The multivariate principal component analysis approach, including hs-CRP, IL-6, TNF-α, and CXCL8, confirmed a uniform upregulated inflammatory profile in children with reduced forced expiratory volume at 0.5 seconds (P = .02). Adjusting for body mass index at birth, maternal smoking, older children in the home, neonatal bacterial airway colonization, infections 14 days before, and asthmatic symptoms, as well as virus-induced wheezing, at any time before biomarker assessment at age 6 months did not affect the associations. CONCLUSION Diminished neonatal lung function is associated with upregulated systemic inflammatory markers, such as hs-CRP.
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Affiliation(s)
- Bo L K Chawes
- Copenhagen Prospective Studies on Asthma in Childhood, Health and Medical Sciences, University of Copenhagen & Danish Pediatric Asthma Center, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jakob Stokholm
- Copenhagen Prospective Studies on Asthma in Childhood, Health and Medical Sciences, University of Copenhagen & Danish Pediatric Asthma Center, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark; Department of Pediatrics, Naestved Hospital, Copenhagen, Denmark
| | - Klaus Bønnelykke
- Copenhagen Prospective Studies on Asthma in Childhood, Health and Medical Sciences, University of Copenhagen & Danish Pediatric Asthma Center, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Susanne Brix
- Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, Copenhagen, Denmark
| | - Hans Bisgaard
- Copenhagen Prospective Studies on Asthma in Childhood, Health and Medical Sciences, University of Copenhagen & Danish Pediatric Asthma Center, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
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30
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Yi JH, Wang D, Li ZY, Hu J, Niu XF, Liu XL. C-reactive protein as a prognostic factor for human osteosarcoma: a meta-analysis and literature review. PLoS One 2014; 9:e94632. [PMID: 24800842 PMCID: PMC4011684 DOI: 10.1371/journal.pone.0094632] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 03/19/2014] [Indexed: 12/12/2022] Open
Abstract
Background Osteosarcoma is the most common primary bone cancer in growing adolescents and young adults. The prognostic role of C-reactive protein (CRP) in patients with osteosarcoma is not fully investigated. The purpose of this study is to perform a meta-analysis and literature review on the role of CRP in osteosarcoma and to assess the potential role of serum CRP as a prognostic factor for patients with osteosarcoma. Methods A detailed literature search was made in Medline for related research publications written in English. Methodological quality of the studies was also evaluated. The data were extracted and assessed by two reviewers independently. Analysis of pooled data were performed, risk ratio (RR) and corresponding confidence intervals (CIs) were calculated and summarized respectively. Results Final analysis of 397 patients from 2 eligible studies was performed. Combined RR of CRP expression suggested that the raised serum CRP level had an adverse prognostic effect on overall survival of patients with osteosarcoma (n = 397 in 2 studies; RR = 0.35; 95% CI: 0.18–0.68; p = 0.002). In the uni- and multivariate survival analysis, response rate and CRP levels were the only independent prognostic variables. Conclusions The results of this meta-analysis suggest that CRP expression confers a worse prognosis in patients with osteosarcoma. Large prospective studies are necessary to provide solid data to confirm the prognostic significance of CRP.
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Affiliation(s)
- Jian-Hua Yi
- The Upper Limb Orthopedic Department of Huang Pu Award, The First Affiliated Hospital of Sun Yat-Sen University Guangzhou, China
| | - Dong Wang
- The Upper Limb Orthopedic Department of Huang Pu Award, The First Affiliated Hospital of Sun Yat-Sen University Guangzhou, China
| | - Zhi-Yong Li
- The Upper Limb Orthopedic Department of Huang Pu Award, The First Affiliated Hospital of Sun Yat-Sen University Guangzhou, China
- * E-mail:
| | - Jun Hu
- The Upper Limb Orthopedic Department of Huang Pu Award, The First Affiliated Hospital of Sun Yat-Sen University Guangzhou, China
| | - Xiao-Feng Niu
- The Upper Limb Orthopedic Department of Huang Pu Award, The First Affiliated Hospital of Sun Yat-Sen University Guangzhou, China
| | - Xiao-Lin Liu
- The Upper Limb Orthopedic Department of Huang Pu Award, The First Affiliated Hospital of Sun Yat-Sen University Guangzhou, China
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31
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Esteves CL, Kelly V, Breton A, Taylor AI, West CC, Donadeu FX, Péault B, Seckl JR, Chapman KE. Proinflammatory cytokine induction of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) in human adipocytes is mediated by MEK, C/EBPβ, and NF-κB/RelA. J Clin Endocrinol Metab 2014; 99:E160-8. [PMID: 24243637 DOI: 10.1210/jc.2013-1708] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
CONTEXT Levels of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1), which regenerates active glucocorticoids, are selectively elevated in adipose tissue in human obesity and metabolic syndrome, both conditions associated with chronic low-grade inflammation. 11β-HSD1 expression is induced by proinflammatory cytokines in a variety of cell types, including in human adipocytes differentiated in vitro. OBJECTIVE Our objective was to determine the mechanisms by which proinflammatory cytokines induce 11β-HSD1 in human adipocytes. RESULTS The proinflammatory cytokines IL-1α (10 ng/mL) and TNFα (20 ng/mL) increased 11β-HSD1 mRNA levels in human primary adipocyte fractions and Simpson-Golabi-Behmel syndrome (SGBS) adipocytes (P<.001). Inhibition of the MAPK/ERK kinase (MEK) attenuated CCAAT/enhancer binding protein (C/EBP) β phosphorylation at Thr235 and IL-1α/TNFα induction of 11β-HSD1 (P≤.007). The small interfering RNA-mediated knockdown of C/EBPβ and nuclear factor (NF)-κB/RelA or inhibition of NF-κB/RelA also attenuated cytokine induction of 11β-HSD1 (P≤.001). Moreover, induction of 11β-HSD1 by IL-1α in SGBS cells was associated with nuclear localization of C/EBPβ and NF-κB/RelA. Chromatin immunoprecipitation experiments showed C/EBPβ and NF-κB/RelA located to the 11β-HSD1 promoter in human adipose tissue. Treatment of adipocyte fractions or SGBS adipocytes with metformin or acetylsalicylic acid, which target C/EBPβ and NF-κB/RelA signaling, attenuated the IL-1α induction of 11β-HSD1 (P≤.002). CONCLUSIONS Increased proinflammatory signaling in inflamed adipose tissue may mediate elevated 11β-HSD1 expression at this site via MEK, C/EBPβ, and NF-κB/RelA. These molecules/signaling pathways are, therefore, potential targets for drugs, including metformin and acetylsalicylic acid, to prevent/decreased up-regulation of 11β-HSD1 in human obese/metabolic syndrome adipose tissue.
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Affiliation(s)
- Cristina L Esteves
- Endocrinology Unit, University/British Heart Foundation Centre for Cardiovascular Science (C.L.E., V.K., A.I.T., C.C.W., B.P., J.R.S., K.E.C.), Centre for Regenerative Medicine (C.C.W., B.P.), The University of Edinburgh, Edinburgh EH16 4TJ, United Kingdom; and Division of Developmental Biology (A.B., F.X.D.), The Roslin Institute, EH25 9RG, United Kingdom
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Menschikowski M, Hagelgans A, Schuler U, Froeschke S, Rosner A, Siegert G. Plasma Levels of Phospholipase A2-IIA in Patients with Different Types of Malignancies: Prognosis and Association with Inflammatory and Coagulation Biomarkers. Pathol Oncol Res 2013; 19:839-46. [DOI: 10.1007/s12253-013-9652-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 05/05/2013] [Indexed: 12/13/2022]
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Does diabetes accelerate the progression of aortic stenosis through enhanced inflammatory response within aortic valves? Inflammation 2012; 35:834-40. [PMID: 21935671 PMCID: PMC3332381 DOI: 10.1007/s10753-011-9384-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Diabetes predisposes to aortic stenosis (AS). We aimed to investigate if diabetes affects the expression of selected coagulation proteins and inflammatory markers in AS valves. Twenty patients with severe AS and concomitant type 2 diabetes mellitus (DM) and 40 well-matched patients without DM scheduled for valve replacement were recruited. Valvular tissue factor (TF), TF pathway inhibitor (TFPI), prothrombin, C-reactive protein (CRP) expression were evaluated by immunostaining and TF, prothrombin, and CRP transcripts were analyzed by real-time PCR. DM patients had elevated plasma CRP (9.2 [0.74–51.9] mg/l vs. 4.7 [0.59–23.14] mg/l, p = 0.009) and TF (293.06 [192.32–386.12] pg/ml vs. 140 [104.17–177.76] pg/ml, p = 0.003) compared to non-DM patients. In DM group, TF−, TFPI−, and prothrombin expression within valves was not related to demographics, body mass index, and concomitant diseases, whereas increased expression related to DM was found for CRP on both protein (2.87 [0.5–9]% vs. 0.94 [0–4]%, p = 0.01) and transcript levels (1.3 ± 0.61 vs. 0.22 ± 0.43, p = 0.009). CRP-positive areas were positively correlated with mRNA TF (r = 0.84, p = 0.036). Diabetes mellitus is associated with enhanced inflammation within AS valves, measured by CRP expression, which may contribute to faster AS progression.
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Voleti B, Hammond DJ, Thirumalai A, Agrawal A. Oct-1 acts as a transcriptional repressor on the C-reactive protein promoter. Mol Immunol 2012; 52:242-8. [PMID: 22750226 DOI: 10.1016/j.molimm.2012.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 06/02/2012] [Indexed: 12/13/2022]
Abstract
C-reactive protein (CRP), a plasma protein of the innate immune system, is produced by hepatocytes. A critical regulatory region (-42 to -57) on the CRP promoter contains binding site for the IL-6-activated transcription factor C/EBPβ. The IL-1β-activated transcription factor NF-κB binds to a κB site located nearby (-63 to -74). The κB site overlaps an octamer motif (-59 to -66) which is the binding site for the constitutively active transcription factor Oct-1. Oct-1 is known to function both as a transcriptional repressor and as an activator depending upon the promoter context. Also, Oct-1 can regulate gene expression either by binding directly to the promoter or by interacting with other transcription factors bound to the promoter. The aim of this study was to investigate the functions of Oct-1 in regulating CRP expression. In luciferase transactivation assays, overexpressed Oct-1 inhibited (IL-6+IL-1β)-induced CRP expression in Hep3B cells. Deletion of the Oct-1 site from the promoter drastically reduced the cytokine response because the κB site was altered as a consequence of deleting the Oct-1 site. Surprisingly, overexpressed Oct-1 inhibited the residual (IL-6+IL-1β)-induced CRP expression through the promoter lacking the Oct-1 site. Similarly, deletion of the Oct-1 site reduced the induction of CRP expression in response to overexpressed C/EBPβ, and overexpressed Oct-1 inhibited C/EBPβ-induced CRP expression through the promoter lacking the Oct-1 site. We conclude that Oct-1 acts as a transcriptional repressor of CRP expression and it does so by occupying its cognate site on the promoter and also via other transcription factors by an as yet undefined mechanism.
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Affiliation(s)
- Bhavya Voleti
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
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Deraz TE, Kamel TB, El-Kerdany TA, El-Ghazoly HMA. High-sensitivity C reactive protein as a biomarker for grading of childhood asthma in relation to clinical classification, induced sputum cellularity, and spirometry. Pediatr Pulmonol 2012; 47:220-5. [PMID: 21960260 DOI: 10.1002/ppul.21539] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 06/22/2011] [Indexed: 11/08/2022]
Abstract
BACKGROUND Asthma is the most common chronic inflammatory disease in childhood and some reports have demonstrated systemic inflammation. The relevance of high-sensitivity assays for C-reactive protein (hs-CRP), which are known to be a sensitive marker of low-grade systemic inflammation, has not been fully studied in childhood asthma. AIM OF STUDY This cross sectional case-control study aimed at evaluating serum hs-CRP in asthmatic children with different grades of severity and control. METHODS Serum hs-CRP, sputum cytology study, and forced expiratory volume in 1 sec (FEV1) % of predicted for age and sex were estimated in 60 asthmatic children (30 uncontrolled steroid-naïve, and 30 controlled on inhaled steroid). They were recruited from Pediatric Chest Clinic, Children's Hospital, Ain Shams University. Sixty healthy children-age and sex-matched were included as a control group. RESULTS Serum hs-CRP concentrations were significantly higher in asthmatics than in controls with a median of 1.93 mg/L and 0.24 mg/L, respectively. Serum hs-CRP levels were significantly higher in uncontrolled steroid-naïve asthmatics than those controlled on inhaled steroid with a median of 3.15 mg/L and 1.55 mg/L, respectively. Serum hs-CRP showed a sensitivity of 72% and a specificity of 93%. CONCLUSIONS Despite that pulmonary function tests and clinical classification are the gold standard for grading of asthma, hs-CRP can be considered as a new marker for assessment of different grades of asthma severity and control. It can be used for indirect detection and monitoring of airway inflammation, disease severity, and response to steroid treatment in asthmatic children.
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Affiliation(s)
- T E Deraz
- Department of Pediatrics, Faculty of Medicine, Ain Shams University, Egypt
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Bode JG, Albrecht U, Häussinger D, Heinrich PC, Schaper F. Hepatic acute phase proteins--regulation by IL-6- and IL-1-type cytokines involving STAT3 and its crosstalk with NF-κB-dependent signaling. Eur J Cell Biol 2011; 91:496-505. [PMID: 22093287 DOI: 10.1016/j.ejcb.2011.09.008] [Citation(s) in RCA: 284] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 09/15/2011] [Accepted: 09/15/2011] [Indexed: 12/16/2022] Open
Abstract
The function of the liver as an important constituent of the immune system involved in innate as well as adaptive immunity is warranted by different highly specialized cell populations. As the major source of acute phase proteins, including secreted pathogen recognition receptors (PRRs), short pentraxins, components of the complement system or regulators of iron metabolism, hepatocytes are essential constituents of innate immunity and largely contribute to the control of a systemic inflammatory response. The production of acute phase proteins in hepatocytes is controlled by a variety of different cytokines released during the inflammatory process with IL-1- and IL-6-type cytokines as the leading regulators operating both as a cascade and as a network having additive, inhibitory, or synergistic regulatory effects on acute phase protein expression. Hence, IL-1β substantially modifies IL-6-induced acute phase protein production as it almost completely abrogates production of acute phase proteins such as γ-fibrinogen, α(2)-macroglobulin or α(1)-antichymotrypsin, whereas production of for example hepcidin, C-reactive protein and serum amyloid A is strongly up-regulated. This switch-like regulation of IL-6-induced acute phase protein production by IL-1β is due to a complex processing of the intracellular signaling events activated in response to IL-6 and/or IL-1β, with the crosstalk between STAT3- and NF-κB-mediated signal transduction being of particular importance. Recent data suggest that in this context complex formation between STAT3 and the p65 subunit of NF-κB might be of key importance. The present review summarizes the regulation of acute phase protein production focusing on the role of the crosstalk of STAT3- and NF-κB-driven pathways for transcriptional control of acute phase gene expression.
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Affiliation(s)
- Johannes G Bode
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital, Medical Faculty, Heinrich-Heine University, Moorenstraße 5, D-40225 Düsseldorf, Germany.
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Effect of obesity on the association between common variations in the HNF1A gene region and C-reactive protein level in Taiwanese. Clin Chim Acta 2011; 412:725-9. [DOI: 10.1016/j.cca.2010.12.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Revised: 12/21/2010] [Accepted: 12/22/2010] [Indexed: 01/02/2023]
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Dehghan A, Dupuis J, Barbalic M, Bis JC, Eiriksdottir G, Lu C, Pellikka N, Wallaschofski H, Kettunen J, Henneman P, Baumert J, Strachan DP, Fuchsberger C, Vitart V, Wilson JF, Paré G, Naitza S, Rudock ME, Surakka I, de Geus EJC, Alizadeh BZ, Guralnik J, Shuldiner A, Tanaka T, Zee RYL, Schnabel RB, Nambi V, Kavousi M, Ripatti S, Nauck M, Smith NL, Smith AV, Sundvall J, Scheet P, Liu Y, Ruokonen A, Rose LM, Larson MG, Hoogeveen RC, Freimer NB, Teumer A, Tracy RP, Launer LJ, Buring JE, Yamamoto JF, Folsom AR, Sijbrands EJG, Pankow J, Elliott P, Keaney JF, Sun W, Sarin AP, Fontes JD, Badola S, Astor BC, Hofman A, Pouta A, Werdan K, Greiser KH, Kuss O, Meyer zu Schwabedissen HE, Thiery J, Jamshidi Y, Nolte IM, Soranzo N, Spector TD, Völzke H, Parker AN, Aspelund T, Bates D, Young L, Tsui K, Siscovick DS, Guo X, Rotter JI, Uda M, Schlessinger D, Rudan I, Hicks AA, Penninx BW, Thorand B, Gieger C, Coresh J, Willemsen G, Harris TB, Uitterlinden AG, Järvelin MR, Rice K, Radke D, Salomaa V, van Dijk KW, Boerwinkle E, Vasan RS, Ferrucci L, Gibson QD, Bandinelli S, Snieder H, Boomsma DI, Xiao X, Campbell H, Hayward C, Pramstaller PP, van Duijn CM, Peltonen L, Psaty BM, Gudnason V, Ridker PM, Homuth G, Koenig W, Ballantyne CM, Witteman JCM, Benjamin EJ, Perola M, Chasman DI. Meta-analysis of genome-wide association studies in >80 000 subjects identifies multiple loci for C-reactive protein levels. Circulation 2011; 123:731-8. [PMID: 21300955 PMCID: PMC3147232 DOI: 10.1161/circulationaha.110.948570] [Citation(s) in RCA: 393] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Accepted: 11/23/2010] [Indexed: 02/07/2023]
Abstract
BACKGROUND C-reactive protein (CRP) is a heritable marker of chronic inflammation that is strongly associated with cardiovascular disease. We sought to identify genetic variants that are associated with CRP levels. METHODS AND RESULTS We performed a genome-wide association analysis of CRP in 66 185 participants from 15 population-based studies. We sought replication for the genome-wide significant and suggestive loci in a replication panel comprising 16 540 individuals from 10 independent studies. We found 18 genome-wide significant loci, and we provided evidence of replication for 8 of them. Our results confirm 7 previously known loci and introduce 11 novel loci that are implicated in pathways related to the metabolic syndrome (APOC1, HNF1A, LEPR, GCKR, HNF4A, and PTPN2) or the immune system (CRP, IL6R, NLRP3, IL1F10, and IRF1) or that reside in regions previously not known to play a role in chronic inflammation (PPP1R3B, SALL1, PABPC4, ASCL1, RORA, and BCL7B). We found a significant interaction of body mass index with LEPR (P<2.9×10(-6)). A weighted genetic risk score that was developed to summarize the effect of risk alleles was strongly associated with CRP levels and explained ≈5% of the trait variance; however, there was no evidence for these genetic variants explaining the association of CRP with coronary heart disease. CONCLUSIONS We identified 18 loci that were associated with CRP levels. Our study highlights immune response and metabolic regulatory pathways involved in the regulation of chronic inflammation.
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Affiliation(s)
- Abbas Dehghan
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
- Member of Netherlands Consortium for Healthy Aging (NCHA) sponsored by Netherlands Genomics Initiative (NGI), Leiden, The Netherlands
| | - Josée Dupuis
- Department of Biostatistics, School of Public Health, Boston University, Boston, MA, USA
- The NHLBI and Boston University’s Framingham Heart Study, Framingham, MA, USA
| | - Maja Barbalic
- Human Genetics Center and Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Joshua C Bis
- Department of Medicine, University of Washington, Seattle, WA USA
| | | | - Chen Lu
- Department of Biostatistics, School of Public Health, Boston University, Boston, MA, USA
| | - Niina Pellikka
- Unit of Public Health Genomics, Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
| | - Henri Wallaschofski
- Institute of Clinical Chemistry and Laboratory Medicine, University of Greifswald, Germany
| | - Johannes Kettunen
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Peter Henneman
- Department of Human Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Jens Baumert
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - David P Strachan
- Division of Community Health Sciences, St George's University of London, London, UK
| | - Christian Fuchsberger
- Institute of Genetic Medicine, European Academy Bozen/Bolzano (EURAC), Bolzano, Italy. Affiliated Institute of University of Lübeck, Lübeck, Germany
| | - Veronique Vitart
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, UK
| | - James F Wilson
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh EH89AG, UK
| | - Guillaume Paré
- Center for Cardiovascular Disease Prevention, Harvard Medical School, Boston, MA, USA
| | - Silvia Naitza
- Istituto di Neurogenetica e Neurofarmacologia, Consiglio Nazionale delle Ricerche, Cagliari, Italy
| | - Megan E Rudock
- Department of Epidemiology and Prevention, Wake Forest University School of Medicine, Wake Forest, USA
| | - Ida Surakka
- Institute for Molecular Medicine Finland FIMM, University of Helsinki, Helsinki, Finland
| | - Eco JC de Geus
- Department of Biological Psychology, VU University, Amsterdam, The Netherlands
| | - Behrooz Z Alizadeh
- Unit of Genetic Epidemiology and Bioinformatics, Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jack Guralnik
- Laboratory of Epidemiology, Demography and Biometry, National Institute on Aging, NIH, Bethesda, MD, USA
| | - Alan Shuldiner
- Division of Endocrinology, Diabetes and Nutrition, University of Maryland School of Medicine, Maryland, USA
| | - Toshiko Tanaka
- Clinical Research Branch, National Institute on Aging, Baltimore, Maryland, USA
- Medstar Research Institute, Baltimore MD, USA
| | - Robert YL Zee
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, USA
| | - Renate B Schnabel
- Department of Medicine, Johannes Gutenberg-University, Mainz, Germany
| | - Vijay Nambi
- Department of Medicine, Baylor College of Medicine and Center for Cardiovascular Prevention, Methodist DeBakey Heart and Vascular Center, Houston, USA
| | - Maryam Kavousi
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
- Member of Netherlands Consortium for Healthy Aging (NCHA) sponsored by Netherlands Genomics Initiative (NGI), Leiden, The Netherlands
| | - Samuli Ripatti
- Institute for Molecular Medicine Finland FIMM, University of Helsinki, Helsinki, Finland
| | - Matthias Nauck
- Institute of Clinical Chemistry and Laboratory Medicine, University of Greifswald, Germany
| | - Nicholas L Smith
- Department of Epidemiology, University of Washington, Seattle, WA, USA
- Seattle Epidemiologic Research and Information Center of the Department of Veterans Affairs Office of Research and Development, Seattle, WA, USA
| | | | - Jouko Sundvall
- Unit of Disease Risk, Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
| | - Paul Scheet
- Department of Epidemiology, MD Anderson Cancer Center, University of Texas, Houston, Texas, USA
| | - Yongmei Liu
- Department of Epidemiology and Prevention, Wake Forest University School of Medicine, Wake Forest, USA
| | - Aimo Ruokonen
- Department of Clinical Chemistry, University of Oulu, Oulu, Finland
| | - Lynda M Rose
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, USA
| | - Martin G Larson
- The NHLBI and Boston University’s Framingham Heart Study, Framingham, MA, USA
| | - Ron C Hoogeveen
- Department of Medicine, Baylor College of Medicine and Center for Cardiovascular Prevention, Methodist DeBakey Heart and Vascular Center, Houston, USA
| | - Nelson B Freimer
- Center for Cardiovascular Disease Prevention, Harvard Medical School, Boston, MA, USA
| | - Alexander Teumer
- Interfaculty Institute for Genetics and Functional Genomics, Ernst-Moritz-Arndt-University Greifswald, 17487 Greifswald, Germany
| | - Russell P Tracy
- Departments of Pathology and Biochemistry, Colchester Research Facility, Colchester, VT, USA
| | - Lenore J Launer
- Laboratory of Epidemiology, Demography and Biometry, National Institute on Aging, NIH, Bethesda, MD, USA
| | - Julie E Buring
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, USA
| | - Jennifer F Yamamoto
- The NHLBI and Boston University’s Framingham Heart Study, Framingham, MA, USA
| | - Aaron R Folsom
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - Eric JG Sijbrands
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - James Pankow
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - Paul Elliott
- MRC-HPA Centre for Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, St Mary's Campus, Imperial College London, London, UK
| | - John F Keaney
- The NHLBI and Boston University’s Framingham Heart Study, Framingham, MA, USA
| | - Wei Sun
- Department of Biostatistics, Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Antti-Pekka Sarin
- Institute for Molecular Medicine Finland FIMM, University of Helsinki, Helsinki, Finland
| | - João D Fontes
- The NHLBI and Boston University’s Framingham Heart Study, Framingham, MA, USA
| | | | - Brad C Astor
- Department of Medicine, Baylor College of Medicine and Center for Cardiovascular Prevention, Methodist DeBakey Heart and Vascular Center, Houston, USA
| | - Albert Hofman
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
- Member of Netherlands Consortium for Healthy Aging (NCHA) sponsored by Netherlands Genomics Initiative (NGI), Leiden, The Netherlands
| | - Anneli Pouta
- Department of Life course and Services, National Institute for Health and Welfare, Helsinki, Finland
| | - Karl Werdan
- Department of Medicine III, Martin-Luther-University Halle-Wittenberg, Germany
| | - Karin H Greiser
- Institute for Medical Epidemiology, Biostatistics, and Informatics, Martin-Luther-University Halle-Wittenberg, Germany
- Division of Cancer Epidemiology, German Cancer Research Centre, Heidelberg, Germany
| | - Oliver Kuss
- Institute for Medical Epidemiology, Biostatistics, and Informatics, Martin-Luther-University Halle-Wittenberg, Germany
| | | | - Joachim Thiery
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics (ILM), University of Leipzig, Germany
| | - Yalda Jamshidi
- Division of Clinical Developmental Sciences, St George’s University of London, London, UK
- Department of Twin Research and Genetic Epidemiology Unit, St Thomas’ Campus, King’s College London, St Thomas’ Hospital, London, UK
| | - Ilja M Nolte
- Unit of Genetic Epidemiology and Bioinformatics, Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | | | - Timothy D Spector
- Department of Twin Research and Genetic Epidemiology Unit, King’s College London, United Kingdom
| | - Henry Völzke
- Institute for Community Medicine, Ernst-Moritz-Arndt-Universität Greifswald, Greifswald, Germany
| | | | - Thor Aspelund
- Icelandic Heart Association, Kopavogur, Iceland
- University of Iceland, Reykjavik, Iceland
| | - David Bates
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, USA
| | | | | | - David S Siscovick
- Cardiovascular Health Research Unit, Departments of Medicine, Epidemiology, and Health Services, University of Washington, Seattle, WA, USA
| | - Xiuqing Guo
- Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jerome I Rotter
- Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Manuela Uda
- Istituto di Neurogenetica e Neurofarmacologia, Consiglio Nazionale delle Ricerche, Cagliari, Italy
| | - David Schlessinger
- Laboratory of Genetics, National Institute on Aging, Baltimore, MD 21224, USA
| | - Igor Rudan
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh EH89AG, UK
- Croatian Centre for Global Health, University of Split Medical School, Split, Croatia
| | - Andrew A Hicks
- Institute of Genetic Medicine, European Academy Bozen/Bolzano (EURAC), Bolzano, Italy. Affiliated Institute of University of Lübeck, Lübeck, Germany
| | - Brenda W Penninx
- Department of Psychiatry/EMGO Institute/Neuroscience Campus, VU University Medical Centre, Amsterdam, The Netherlands
| | - Barbara Thorand
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Christian Gieger
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Joe Coresh
- Department of Medicine, Baylor College of Medicine and Center for Cardiovascular Prevention, Methodist DeBakey Heart and Vascular Center, Houston, USA
| | - Gonneke Willemsen
- Department of Biological Psychology, VU University, Amsterdam, The Netherlands
| | - Tamara B Harris
- Laboratory of Epidemiology, Demography and Biometry, National Institute on Aging, NIH, Bethesda, MD, USA
| | - Andre G Uitterlinden
- Member of Netherlands Consortium for Healthy Aging (NCHA) sponsored by Netherlands Genomics Initiative (NGI), Leiden, The Netherlands
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Marjo-Riitta Järvelin
- MRC-HPA Centre for Environment and Health, Department of Epidemiology and Biostatistics, School of Public Health, St Mary's Campus, Imperial College London, London, UK
- Department of Life course and Services, National Institute for Health and Welfare, Helsinki, Finland
- Institute of Health Sciences and Biocenter Oulu, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Kenneth Rice
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Dörte Radke
- Institute for Community Medicine, Ernst-Moritz-Arndt-Universität Greifswald, Greifswald, Germany
| | - Veikko Salomaa
- Unit of Chronic Disease Epidemiology and Prevention, Department of Chronic Disease Prevention , National Institute for Health and Welfare, Helsinki, Finland
| | - Ko Willems van Dijk
- Departments of Internal Medicine and Human Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Eric Boerwinkle
- Human Genetics Center and Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Ramachandran S Vasan
- The NHLBI and Boston University’s Framingham Heart Study, Framingham, MA, USA
- Preventive Medicine and Cardiology Sections, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Luigi Ferrucci
- Clinical Research Branch, National Institute on Aging, Baltimore, Maryland, USA
| | - Quince D Gibson
- Division of Endocrinology, Diabetes and Nutrition, University of Maryland School of Medicine, Maryland, USA
| | | | - Harold Snieder
- Unit of Genetic Epidemiology and Bioinformatics, Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Dorret I Boomsma
- Department of Biological Psychology, VU University, Amsterdam, The Netherlands
| | - Xiangjun Xiao
- Department of Epidemiology, MD Anderson Cancer Center, University of Texas, Houston, Texas, USA
| | - Harry Campbell
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh EH89AG, UK
| | - Caroline Hayward
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, UK
| | - Peter P Pramstaller
- Institute of Genetic Medicine, European Academy Bozen/Bolzano (EURAC), Bolzano, Italy. Affiliated Institute of University of Lübeck, Lübeck, Germany
- Department of Neurology, General Central Hospital, Bolzano, Italy
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Cornelia M van Duijn
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
- Member of Netherlands Consortium for Healthy Aging (NCHA) sponsored by Netherlands Genomics Initiative (NGI), Leiden, The Netherlands
| | - Leena Peltonen
- Department of Human Genetics, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Bruce M Psaty
- Cardiovascular Health Research Unit, Departments of Medicine, Epidemiology, and Health Services, University of Washington, Seattle, WA, USA
- Group Health Research Institute, Group Health Cooperative, Seattle, WA, USA
| | - Vilmundur Gudnason
- Icelandic Heart Association, Kopavogur, Iceland
- University of Iceland, Reykjavik, Iceland
| | - Paul M Ridker
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, USA
| | - Georg Homuth
- Interfaculty Institute for Genetics and Functional Genomics, Ernst-Moritz-Arndt-University Greifswald, 17487 Greifswald, Germany
| | - Wolfgang Koenig
- Department of Internal Medicine II - Cardiology, University of Ulm Medical Center, Ulm, Germany
| | - Christie M Ballantyne
- Department of Medicine, Baylor College of Medicine and Center for Cardiovascular Prevention, Methodist DeBakey Heart and Vascular Center, Houston, USA
| | - Jacqueline CM Witteman
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
- Member of Netherlands Consortium for Healthy Aging (NCHA) sponsored by Netherlands Genomics Initiative (NGI), Leiden, The Netherlands
| | - Emelia J Benjamin
- The NHLBI and Boston University’s Framingham Heart Study, Framingham, MA, USA
- Preventive Medicine and Cardiology Sections, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Markus Perola
- Unit of Public Health Genomics, Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
| | - Daniel I Chasman
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, USA
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Ng MCY, Lam VKL, Tam CHT, Chan AWH, So WY, Ma RCW, Zee BCY, Waye MMY, Mak WW, Hu C, Wang CR, Tong PCY, Jia WP, Chan JCN. Association of the POU class 2 homeobox 1 gene (POU2F1) with susceptibility to Type 2 diabetes in Chinese populations. Diabet Med 2010; 27:1443-9. [PMID: 21059098 DOI: 10.1111/j.1464-5491.2010.03124.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
AIMS POU class 2 homeobox 1 (POU2F1), also known as octamer-binding transcription factor-1 (OCT-1), is a ubiquitous transcription factor that plays a key role in the regulation of genes related to inflammation and cell cycles. POU2F1 is located on chromosome 1q24, a region with linkage for Type 2 diabetes in Chinese and other populations. We examined the association of POU2F1 genetic variants with Type 2 diabetes in Hong Kong Chinese using two independent cohorts. METHODS We genotyped five haplotype-tagging single nucleotide polymorphisms at POU2F1 in 1378 clinic-based patients with Type 2 diabetes and 601 control subjects, as well as 707 members from 179 families with diabetes. RESULTS We found significant associations of rs4657652, rs7532692, rs10918682 and rs3767434 (OR = 1.26-1.59, 0.0003 < P(unadjusted) < 0.035) with Type 2 diabetes in the clinic-based case-control cohorts. Rs3767434 was also associated with Type 2 diabetes (OR = 1.55, P(unadjusted) = 0.013) in the family-based cohort. Meta-analysis revealed similar associations. In addition, the risk G allele of rs10918682 showed increased usage of insulin treatment during a mean follow-up period of 7 years [hazard ratio = 1.50 (1.05-2.14), P = 0.025]. CONCLUSIONS Using separate cohorts, we observed consistent results showing the contribution of multiple variants at POU2F1 to the risk of Type 2 diabetes.
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Affiliation(s)
- M C Y Ng
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China.
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Yang X, Hu W, Zhang Q, Wang Y, Sun L. Puerarin Inhibits C-Reactive Protein Expression via Suppression of Nuclear Factor κB Activation in Lipopolysaccharide-Induced Peripheral Blood Mononuclear Cells of Patients with Stable Angina Pectoris. Basic Clin Pharmacol Toxicol 2010; 107:637-42. [PMID: 20346059 DOI: 10.1111/j.1742-7843.2010.00548.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Low-grade inflammation, a minor elevation in the baseline concentration of inflammatory markers such as C-reactive protein (CRP), is nowadays recognized as an important underlying condition in many common diseases. Concentrations of CRP under 10 mg/1 are called low-grade inflammation and values above that are considered as clinically significant inflammatory states. Epidemiological studies have revealed demographic and socioeconomic factors that associate with CRP concentration; these include age, sex, birth weight, ethnicity, socioeconomic status, body mass index (BMI), fiber consumption, alcohol intake, and dietary fatty acids. At the molecular level, production of CRP is induced by proinflammatory cytokines IL-1, IL-6, and IL-17 in the liver, although extra hepatic production most likely contributes to systemic concentrations. The cytokines are produced in response to, for example, steroid hormones, thrombin, C5a, bradykinin, other cytokines, UV-light, neuropeptides and bacterial components, such as lipopolysaccharide. Cytokines exert their biological effects on CRP by signaling through their receptors on hepatic cells and activating different kinases and phosphatases leading to translocation of various transcription factors on CRP gene promoter and production of CRP protein. Genetic polymorphisms in the interleukin genes as well as in CRP gene have been associated with minor elevation in CRP. As minor elevation in CRP is associated with both inflammatory and noninflammatory conditions, it should be noticed that the elevation might just reflect distressed or injured cells homeostasis maintenance in everyday life, rather than inflammation with classical symptoms of redness, swelling, heat, and pain.
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Affiliation(s)
- Carita M Eklund
- Department of Microbiology and Immunology, University of Tampere, Medical School, 33520 Tampere, Finland.
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42
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Mao XM, Liu H, Tao XJ, Yin GP, Li Q, Wang SK. Independent anti-inflammatory effect of insulin in newly diagnosed type 2 diabetes. Diabetes Metab Res Rev 2009; 25:435-41. [PMID: 19405039 DOI: 10.1002/dmrr.968] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Although insulin has been reported to have an anti-inflammatory effect, whether this effect is independent of its property to reduce blood glucose with insulin treatment in type 2 diabetes has not been investigated in detail. The purpose of this study was to evaluate the independent anti-inflammatory effect of insulin in patients with newly diagnosed type 2 diabetes. RESEARCH DESIGN AND METHODS An 8-week, randomized, parallel-group study that enrolled 90 patients with newly diagnosed type 2 diabetes, who were randomly assigned to receive either insulin or metformin, was carried out. The doses of insulin and metformin were titrated according to fasting plasma glucose (FPG) and postprandial plasma glucose (PPG) during the 4 weeks; the target of FPG was 126 mg/dL and that of PPG was 160 mg/dL. The blood glucose levels were kept stabilized till the end of the study. The serum concentrations of high-sensitive C-reactive protein (hsCRP) and interleukin (IL)-6 were measured before starting the study and 4 and 8 weeks after initiation of insulin or metformin therapy. RESULTS After 4 weeks of dose titration, the levels of FPG were reduced in the two groups compared to baseline (p < 0.001), but there was no significant difference between the two groups (p > 0.05). During the next 4 weeks' treatment, the levels of FPG were stable, but the serum concentration of hsCRP and IL-6 was markedly reduced in the insulin-treated group compared with that in the metformin-treated group (p < 0.001). CONCLUSIONS Our data suggest that insulin has an anti-inflammatory effect that is independent of the reduction it causes in blood glucose.
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Affiliation(s)
- Xiao-Ming Mao
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Jiangsu, China.
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43
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Meshkani R, Adeli K. Hepatic insulin resistance, metabolic syndrome and cardiovascular disease. Clin Biochem 2009; 42:1331-46. [PMID: 19501581 DOI: 10.1016/j.clinbiochem.2009.05.018] [Citation(s) in RCA: 298] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2009] [Revised: 05/26/2009] [Accepted: 05/29/2009] [Indexed: 02/06/2023]
Abstract
BACKGROUND The metabolic syndrome is a constellation of common metabolic disorders that is associated with cardiovascular disease. Insulin resistance has a central role in the pathophysiology of metabolic syndrome. RECENT ADVANCES It is now commonly accepted that chronic inflammation associated with visceral obesity induces insulin resistance in the liver. Chronic inflammation is characterized by the production of abnormal adipokines and cytokines such as TNF-alpha, FFA, IL-1, IL-6, leptin and resistin. These factors inhibit insulin signalling in hepatocytes by activating SOCS proteins, several kinases such as JNK, IKK-beta and PKC and protein tyrosine phosphatases such as PTP1B and PTEN, that in turn impair insulin signalling at insulin receptor and insulin receptor substrate (IRS) level. Hepatic insulin resistance in turn causes impaired suppression of glucose production by insulin in hepatocytes leading to hyperglycemia. An important and early complication of hepatic insulin resistance is the induction of hepatic VLDL production, via changes in the rate of apoB synthesis and degradation and de novo lipogenesis, or increased FFA flux from adipose tissue into the liver. Insulin resistance also stimulates the production of CRP and PAI-1, both markers of an inflammatory state. All metabolic abnormalities related to hepatic insulin resistance have been shown to directly or indirectly promote atherosclerosis. Hyperglycemia induces a series of alterations including endothelial dysfunction, cellular proliferation, changes in extracellular matrix conformation and impairment of LDL receptor-mediated uptake decreasing the in vivo clearance of LDL. Small dense LDLs associated with high circulating VLDL have higher affinity to the intimal proteoglycans leading to the penetration of more LDL particles into the arterial wall. CRP can also accelerate atherosclerosis by increasing the expression of PAI-1 and adhesion molecules in endothelial cells, inhibition of nitric oxide formation and increasing LDL uptake into macrophages. CONCLUSIONS Overall, growing evidence suggests that hepatic insulin resistance is sufficient to induce several components of the metabolic syndrome and promote progression to cardiovascular disease. Many unresolved questions remain however on the molecular and cellular mechanisms that trigger hepatic insulin resistance and promote the development of clinical metabolic syndrome.
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Affiliation(s)
- Reza Meshkani
- Department of Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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44
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Hage FG, Szalai AJ. The role of C-reactive protein polymorphisms in inflammation and cardiovascular risk. Curr Atheroscler Rep 2009; 11:124-30. [DOI: 10.1007/s11883-009-0020-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Kang J, Gemberling M, Nakamura M, Whitby FG, Handa H, Fairbrother WG, Tantin D. A general mechanism for transcription regulation by Oct1 and Oct4 in response to genotoxic and oxidative stress. Genes Dev 2009; 23:208-22. [PMID: 19171782 DOI: 10.1101/gad.1750709] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Oct1 and Oct4 are homologous transcription factors with similar DNA-binding specificities. Here we show that Oct1 is dynamically phosphorylated in vivo following exposure of cells to oxidative and genotoxic stress. We further show that stress regulates the selectivity of both proteins for specific DNA sequences. Mutation of conserved phosphorylation target DNA-binding domain residues in Oct1, and Oct4 confirms their role in regulating binding selectivity. Using chromatin immunoprecipitation, we show that association of Oct4 and Oct1 with a distinct group of in vivo targets is inducible by stress, and that Oct1 is essential for a normal post-stress transcriptional response. Finally, using an unbiased Oct1 target screen we identify a large number of genes targeted by Oct1 specifically under conditions of stress, and show that several of these inducible Oct1 targets are also inducibly bound by Oct4 in embryonic stem cells following stress exposure.
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Affiliation(s)
- Jinsuk Kang
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah 84112, USA
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Gaitonde S, Samols D, Kushner I. C-reactive protein and systemic lupus erythematosus. ACTA ACUST UNITED AC 2009; 59:1814-20. [PMID: 19035410 DOI: 10.1002/art.24316] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Agrawal A, Singh PP, Bottazzi B, Garlanda C, Mantovani A. Pattern Recognition by Pentraxins. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2009; 653:98-116. [DOI: 10.1007/978-1-4419-0901-5_7] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Okazaki M, Iwasaki Y, Jing H, Nishiyama M, Taguchi T, Tsugita M, Taniguchi Y, Kambayashi M, Hashimoto K. Insulin enhancement of cytokine-induced coagulation/inflammation-related gene transcription in hepatocytes. Endocr J 2008; 55:967-75. [PMID: 18614853 DOI: 10.1507/endocrj.k08e-078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Hyperinsulinemia is a known risk factor for cardiovascular events, but its molecular basis is not completely understood. In this study, we examined the effects of insulin alone, or insulin and proinflammatory cytokines, on the expression of inflammation/coagulation-related genes in hepatocytes. We found that, in the HepG2 human hepatocyte cell line, insulin stimulated the transcriptional activity of plasminogen activator inhibitor 1 (PAI-1), fibrinogen-gamma and C-reactive protein (CRP) genes in time- and dose-dependent manners. These effects were completely inhibited by MAP kinase inhibitor PD98059, but not by PI3 kinase inhibitor wortmannin. As previously reported, proinflammatory cytokines like interleukin 1beta and interleukin 6 showed stimulatory effects on the expression of these genes, and we now found that the combination of insulin and the cytokines showed more than additive effects in most cases. Interleukin 1beta and insulin also cooperatively increased the endogenous mRNA level of PAI-1. These results suggest that the coexistence of high insulin and cytokines may induce inflammation and hypercoagulation in a synergistic manner. This may partly explain why the accumulation of multiple risk factors, especially hyperinsulinemia caused by insulin resistance and enhanced production of proinflammatory cytokines, results in inflammation, thrombosis, and cardiovascular events in metabolic syndrome.
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Affiliation(s)
- Mizuho Okazaki
- Department of Endocrinology, Metabolism, and Nephrology, Kochi Medical School, Kochi University, Oko-cho, Nankoku, Japan
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Agrawal A, Suresh MV, Singh SK, Ferguson DA. The protective function of human C-reactive protein in mouse models of Streptococcus pneumoniae infection. Endocr Metab Immune Disord Drug Targets 2008; 8:231-7. [PMID: 19075776 PMCID: PMC2698992 DOI: 10.2174/187153008786848321] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Human C-reactive protein (CRP), injected intravenously into mice or produced inside mice by a human transgene, protects mice from death following administration of lethal numbers of Streptococcus pneumoniae. The protective effect of CRP is due to reduction in the concentration of bacteria in the blood. The exact mechanism of CRP-dependent killing of pneumococci and the partners of CRP in this process are yet to be defined. The current efforts to determine the mechanism of action of CRP in mice are directed by four known in vitro functions of CRP: 1. the ability of pneumococcal C-polysaccharide-complexed CRP to activate complement pathways, 2. the ability of CRP to bind to Fcgamma receptors on phagocytic cells, 3. the ability of CRP to bind to immobilized complement regulator protein factor H which can also be present on pneumococci, and, 4. the ability of CRP to interact with dendritic cells. CRP-treated dendritic cells may well be as host-defensive as CRP alone. An interesting condition for the protective function of CRP is that CRP must be given to mice within a few hours of the administration of pneumococci. CRP does not protect mice if given later, suggesting that CRP works prophylactically but not as a treatment for infection. However, full knowledge of CRP may lead to the development of CRP-based treatment strategies to control pneumococcal infection. Also, because CRP deficiency in humans has not yet been reported, it becomes important to investigate the deficiency of the mechanism of action of CRP in CRP-positive individuals.
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Affiliation(s)
- Alok Agrawal
- Department of Pharmacology, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA.
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50
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Beischlag TV, Luis Morales J, Hollingshead BD, Perdew GH. The aryl hydrocarbon receptor complex and the control of gene expression. Crit Rev Eukaryot Gene Expr 2008; 18:207-50. [PMID: 18540824 DOI: 10.1615/critreveukargeneexpr.v18.i3.20] [Citation(s) in RCA: 543] [Impact Index Per Article: 33.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that controls the expression of a diverse set of genes. The toxicity of the potent AhR ligand 2,3,7,8-tetrachlorodibenzo-p-dioxin is almost exclusively mediated through this receptor. However, the key alterations in gene expression that mediate toxicity are poorly understood. It has been established through characterization of AhR-null mice that the AhR has a required physiological function, yet how endogenous mediators regulate this orphan receptor remains to be established. A picture as to how the AhR/ARNT heterodimer actually mediates gene transcription is starting to emerge. The AhR/ARNT complex can alter transcription both by binding to its cognate response element and through tethering to other transcription factors. In addition, many of the coregulatory proteins necessary for AhR-mediated transcription have been identified. Cross talk between the estrogen receptor and the AhR at the promoter of target genes appears to be an important mode of regulation. Inflammatory signaling pathways and the AhR also appear to be another important site of cross talk at the level of transcription. A major focus of this review is to highlight experimental efforts to characterize nonclassical mechanisms of AhR-mediated modulation of gene transcription.
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Affiliation(s)
- Timothy V Beischlag
- Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, PA 16802, USA
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