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Werder RB, Zhou X, Cho MH, Wilson AA. Breathing new life into the study of COPD with genes identified from genome-wide association studies. Eur Respir Rev 2024; 33:240019. [PMID: 38811034 PMCID: PMC11134200 DOI: 10.1183/16000617.0019-2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 02/23/2024] [Indexed: 05/31/2024] Open
Abstract
COPD is a major cause of morbidity and mortality globally. While the significance of environmental exposures in disease pathogenesis is well established, the functional contribution of genetic factors has only in recent years drawn attention. Notably, many genes associated with COPD risk are also linked with lung function. Because reduced lung function precedes COPD onset, this association is consistent with the possibility that derangements leading to COPD could arise during lung development. In this review, we summarise the role of leading genes (HHIP, FAM13A, DSP, AGER and TGFB2) identified by genome-wide association studies in lung development and COPD. Because many COPD genome-wide association study genes are enriched in lung epithelial cells, we focus on the role of these genes in the lung epithelium in development, homeostasis and injury.
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Affiliation(s)
- Rhiannon B Werder
- Murdoch Children's Research Institute, Melbourne, Australia
- Center for Regenerative Medicine of Boston University and Boston Medical Center, Boston, MA, USA
| | - Xiaobo Zhou
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael H Cho
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrew A Wilson
- Center for Regenerative Medicine of Boston University and Boston Medical Center, Boston, MA, USA
- The Pulmonary Center and Department of Medicine, Boston University School of Medicine, Boston, MA, USA
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2
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Rojas A, Lindner C, Schneider I, Gonzalez I, Uribarri J. The RAGE Axis: A Relevant Inflammatory Hub in Human Diseases. Biomolecules 2024; 14:412. [PMID: 38672429 PMCID: PMC11048448 DOI: 10.3390/biom14040412] [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: 03/04/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
In 1992, a transcendental report suggested that the receptor of advanced glycation end-products (RAGE) functions as a cell surface receptor for a wide and diverse group of compounds, commonly referred to as advanced glycation end-products (AGEs), resulting from the non-enzymatic glycation of lipids and proteins in response to hyperglycemia. The interaction of these compounds with RAGE represents an essential element in triggering the cellular response to proteins or lipids that become glycated. Although initially demonstrated for diabetes complications, a growing body of evidence clearly supports RAGE's role in human diseases. Moreover, the recognizing capacities of this receptor have been extended to a plethora of structurally diverse ligands. As a result, it has been acknowledged as a pattern recognition receptor (PRR) and functionally categorized as the RAGE axis. The ligation to RAGE leads the initiation of a complex signaling cascade and thus triggering crucial cellular events in the pathophysiology of many human diseases. In the present review, we intend to summarize basic features of the RAGE axis biology as well as its contribution to some relevant human diseases such as metabolic diseases, neurodegenerative, cardiovascular, autoimmune, and chronic airways diseases, and cancer as a result of exposure to AGEs, as well as many other ligands.
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Affiliation(s)
- Armando Rojas
- Biomedical Research Laboratories, Faculty of Medicine, Catholic University of Maule, Talca 34600000, Chile; (A.R.); (I.G.)
| | - Cristian Lindner
- Department of Radiology, Faculty of Medicine, University of Concepción, Concepción 4030000, Chile;
| | - Ivan Schneider
- Centre of Primary Attention, South Metropolitan Health Service, Santiago 3830000, Chile;
| | - Ileana Gonzalez
- Biomedical Research Laboratories, Faculty of Medicine, Catholic University of Maule, Talca 34600000, Chile; (A.R.); (I.G.)
| | - Jaime Uribarri
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10021, USA
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3
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Zhou J, Liu S, Bi S, Kong W, Qian R, Xie X, Zeng M, Jiang X, Liao Z, Shuai M, Liu W, Cheng L, Wu M. The RAGE signaling in osteoporosis. Biomed Pharmacother 2023; 165:115044. [PMID: 37354815 DOI: 10.1016/j.biopha.2023.115044] [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: 05/14/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 06/26/2023] Open
Abstract
Osteoporosis (OP), characterized by an imbalance of bone remodeling between formation and resorption, has become a health issue worldwide. The receptor for advanced glycation end product (RAGE), a transmembrane protein in the immunoglobin family, has multiple ligands and has been involved in many chronic diseases, such as diabetes and OP. Increasing evidence shows that activation of the RAGE signaling negatively affects bone remodeling. Ligands, such as advanced glycation end products (AGEs), S100, β-amyloid (Aβ), and high mobility group box 1 (HMGB1), have been well documented that they may negatively regulate the proliferation and differentiation of osteoblasts and positively stimulate osteoclastogenesis by activating the expression of RAGE. In this review, we comprehensively discuss the structure of RAGE and its biological functions in the pathogenesis of OP. The research findings suggest that RAGE signaling has become a potential target for the therapeutic management of OP.
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Affiliation(s)
- Jianguo Zhou
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China.
| | - Shiwei Liu
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Shengrong Bi
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Weihao Kong
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Rui Qian
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Xunlu Xie
- Department of Pathology, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Ming Zeng
- Department of Orthopedics, Ruijin Traditional Chinese Medicine Hospital, Ruijin 342500, China
| | - Xiaowei Jiang
- Department of Joint Surgery, Ningdu County People's Hospital, Ningdu 342800, China
| | - Zhibin Liao
- Department of Joint Surgery, Ningdu County People's Hospital, Ningdu 342800, China
| | - Ming Shuai
- Department of Orthopedics, Chongyi County People's Hospital, Chongyi 341300, China
| | - Wei Liu
- Department of Orthopedics, Ningdu County Traditional Chinese Medicine Hospital, Ningdu 342800, China
| | - Long Cheng
- Department of Orthopedics, Ningdu County Traditional Chinese Medicine Hospital, Ningdu 342800, China
| | - Moujian Wu
- Department of Orthopedics, Xingguo County Traditional Chinese Medicine Hospital, Xingguo 342400, China
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4
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Chaurasiya A, Khilari AA, Kazi R, Jaiswal MR, Bhoite GM, Padwal MK, Momin AA, Shanmugam D, Kulkarni MJ. Nanopore Sequencing of RAGE Gene Polymorphisms and Their Association with Type 2 Diabetes. ACS OMEGA 2023; 8:25727-25738. [PMID: 37521601 PMCID: PMC10373474 DOI: 10.1021/acsomega.3c00297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 05/22/2023] [Indexed: 08/01/2023]
Abstract
The receptor for advanced glycation end products (RAGE) is a transmembrane protein that interacts with its ligands, advanced glycation end products (AGEs). AGEs are elevated in diabetes and diabetic complications, leading to increased oxidative stress and activation of pro-inflammatory pathways facilitated by AGE-RAGE signaling. Polymorphisms in the RAGE gene can potentially affect AGE-RAGE interaction and its downstream signaling, which plays a crucial role in the progression of diabetes and its complications. In this study, we used nanopore sequencing for genotyping of RAGE polymorphism and identified a maximum number of 33 polymorphisms, including two previously unreported novel mutations in a cohort of healthy, type 2 diabetics without nephropathy and type 2 diabetics with nephropathy in order to identify associations. Two novel RAGE polymorphisms in the intron 8 and 3'UTR region at genomic locations 32181834 and 32181132, respectively, were detected with a low frequency. For four previously reported polymorphisms, cross-validation by PCR-RFLP showed 99.75% concordance with nanopore sequencing. Analysis of genotype distribution and allele frequencies revealed that five single nucleotide polymorphisms, i.e., rs1800625, rs3131300, rs3134940, rs2070600, and rs9391855, were associated with an increased risk for type 2 diabetes.
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Affiliation(s)
- Arvindkumar
H. Chaurasiya
- Biochemical
Sciences Division, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ajinkya A. Khilari
- Biochemical
Sciences Division, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rubina Kazi
- Biochemical
Sciences Division, CSIR-National Chemical
Laboratory, Pune 411008, India
| | - Meera R. Jaiswal
- Biochemical
Sciences Division, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Gouri M. Bhoite
- Department
of Biochemistry, Bharati Vidyapeeth (DTU)
Dental College, Pune 411043, India
| | - Meghana K. Padwal
- Department
of Biochemistry, Bharati Vidyapeeth (DTU)
Medical College, Pune 411043, India
| | - Abdulrahaman A. Momin
- Department
of Biochemistry, Bharati Vidyapeeth (DTU)
Medical College, Pune 411043, India
| | - Dhanasekaran Shanmugam
- Biochemical
Sciences Division, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mahesh J. Kulkarni
- Biochemical
Sciences Division, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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5
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Reynaert NL, Vanfleteren LEGW, Perkins TN. The AGE-RAGE Axis and the Pathophysiology of Multimorbidity in COPD. J Clin Med 2023; 12:jcm12103366. [PMID: 37240472 DOI: 10.3390/jcm12103366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/24/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a disease of the airways and lungs due to an enhanced inflammatory response, commonly caused by cigarette smoking. Patients with COPD are often multimorbid, as they commonly suffer from multiple chronic (inflammatory) conditions. This intensifies the burden of individual diseases, negatively affects quality of life, and complicates disease management. COPD and comorbidities share genetic and lifestyle-related risk factors and pathobiological mechanisms, including chronic inflammation and oxidative stress. The receptor for advanced glycation end products (RAGE) is an important driver of chronic inflammation. Advanced glycation end products (AGEs) are RAGE ligands that accumulate due to aging, inflammation, oxidative stress, and carbohydrate metabolism. AGEs cause further inflammation and oxidative stress through RAGE, but also through RAGE-independent mechanisms. This review describes the complexity of RAGE signaling and the causes of AGE accumulation, followed by a comprehensive overview of alterations reported on AGEs and RAGE in COPD and in important co-morbidities. Furthermore, it describes the mechanisms by which AGEs and RAGE contribute to the pathophysiology of individual disease conditions and how they execute crosstalk between organ systems. A section on therapeutic strategies that target AGEs and RAGE and could alleviate patients from multimorbid conditions using single therapeutics concludes this review.
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Affiliation(s)
- Niki L Reynaert
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, 6229 ER Maastricht, The Netherlands
| | - Lowie E G W Vanfleteren
- COPD Center, Department of Respiratory Medicine and Allergology, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Timothy N Perkins
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
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Chittimalli K, Jahan J, Sakamuri A, Weyrick H, Winkle W, Adkins S, Vetter SW, Jarajapu YPR. Reversal of aging-associated increase in myelopoiesis and expression of alarmins by angiotensin-(1-7). Sci Rep 2023; 13:2543. [PMID: 36782016 PMCID: PMC9925828 DOI: 10.1038/s41598-023-29853-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 02/11/2023] [Indexed: 02/15/2023] Open
Abstract
Aging is associated with chronic systemic inflammation largely due to increased myelopoiesis, which in turn increases risk for vascular disease. We have previously shown evidence for the therapeutic potential of Angiotensin-(1-7) (Ang-(1-7)) in reversing vasoreparative dysfunction in aging. This study tested the hypothesis that ischemic vascular repair in aging by Ang-(1-7) involves attenuation of myelopoietic potential in the bone marrow and decreased mobilization of inflammatory cells. Young or Old male mice of age 3-4 and 22-24 months, respectively, received Ang-(1-7) (1 µg/kg/min, s.c.) for four weeks. Myelopoiesis was evaluated in the bone marrow (BM) cells by carrying out the colony forming unit (CFU-GM) assay followed by flow cytometry of monocyte-macrophages. Expression of pro-myelopoietic factors and alarmins in the hematopoietic progenitor-enriched BM cells was evaluated. Hindlimb ischemia (HLI) was induced by femoral ligation, and mobilization of monocytes into the blood stream was determined. Blood flow recovery was monitored by Laser Doppler imaging and infiltration of inflammatory cells was evaluated by immunohistochemistry. BM cells from Old mice generated a higher number of monocytes (Ly6G-CD11b+Ly6Chi) and M1 macrophages (Ly6ChiF4/80+) compared to that of Young, which was reversed by Ang-(1-7). Gene expression of selected myelopoietic factors, alarmins (S100A8, S100A9, S100A14 and HMGb1) and the receptor for alarmins, RAGE, was higher in the Old hematopoietic progenitor-enriched BM cells compared to the Young. Increased expressions of these factors were decreased by Ang-(1-7). Ischemia-induced mobilization of monocytes was higher in Old mice with decreased blood flow recovery and increased infiltration of monocyte-macrophages compared to the Young, all of which were reversed by Ang-(1-7). Enhanced ischemic vascular repair by Ang-(1-7) in aging is largely by decreasing the generation and recruitment of inflammatory monocyte-macrophages to the areas of ischemic injury. This is associated with decreased alarmin signaling in the BM-hematopoietic progenitor cells.
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Affiliation(s)
- Kishore Chittimalli
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Jesmin Jahan
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Anil Sakamuri
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Hope Weyrick
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Wink Winkle
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Steven Adkins
- School of Biomedical Sciences, University of North Dakota, Grand Forks, ND, 58202, USA
| | - Stefan W Vetter
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Yagna P R Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA.
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Kim Y, Park H, Kim Y, Kim SH, Lee JH, Yang H, Kim SJ, Li CM, Lee H, Na DH, Moon S, Shin Y, Kam TI, Lee HW, Kim S, Song JJ, Jung YK. Pathogenic Role of RAGE in Tau Transmission and Memory Deficits. Biol Psychiatry 2022; 93:829-841. [PMID: 36759256 DOI: 10.1016/j.biopsych.2022.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 09/19/2022] [Accepted: 10/09/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND In tauopathies, brain regions with tau accumulation strongly correlate with clinical symptoms, and spreading of misfolded tau along neural network leads to disease progression. However, the underlying mechanisms by which tau proteins enter neurons during pathological propagation remain unclear. METHODS To identify membrane receptors responsible for neuronal propagation of tau oligomers, we established a cell-based tau uptake assay and screened complementary DNA expression library. Tau uptake and propagation were analyzed in vitro and in vivo using a microfluidic device and stereotactic injection. The cognitive function of mice was assessed using behavioral tests. RESULTS From a genome-wide cell-based functional screening, RAGE (receptor for advanced glycation end products) was isolated to stimulate the cellular uptake of tau oligomers. Rage deficiency reduced neuronal uptake of pathological tau prepared from rTg4510 mouse brains or cerebrospinal fluid from patients with Alzheimer's disease and slowed tau propagation between neurons cultured in a 3-chamber microfluidic device. RAGE levels were increased in the brains of rTg4510 mice and tau oligomer-treated neurons. Rage knockout decreased tau transmission in the brains of nontransgenic mice after injection with Alzheimer's disease patient-derived tau and ameliorated memory loss after injection with GFP-P301L-tau-AAV. Treatment of RAGE antagonist FPS-ZM1 blocked transsynaptic tau propagation and inflammatory responses and alleviated cognitive impairment in rTg4510 mice. CONCLUSIONS These results suggest that in neurons and microglia, RAGE binds to pathological tau and facilitates neuronal tau pathology progression and behavioral deficits in tauopathies.
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Affiliation(s)
- Youbin Kim
- Interdisciplinary Program in Neuroscience, Seoul National University, Seoul, Republic of Korea; School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Hyejin Park
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Youngwon Kim
- School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Seo-Hyun Kim
- School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Jae Hoon Lee
- Department of Biochemistry, Yonsei University, Seoul, Republic of Korea
| | - Hanseul Yang
- School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Seo Jin Kim
- School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Cathena Meiling Li
- School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Haneul Lee
- School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Do-Hyeong Na
- School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Seowon Moon
- School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Yumi Shin
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Tae-In Kam
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Han-Woong Lee
- Department of Biochemistry, Yonsei University, Seoul, Republic of Korea
| | - SangYun Kim
- Department of Neurology, Seoul National University Bundang Hospital and Seoul National University College of Medicine, Gyeonggi-do, Republic of Korea
| | - Ji-Joon Song
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Yong-Keun Jung
- Interdisciplinary Program in Neuroscience, Seoul National University, Seoul, Republic of Korea; School of the Biological Sciences, Seoul National University, Seoul, Republic of Korea.
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Chen L, Sun X, Zhong X. Role of RAGE and its ligand HMGB1 in the development of COPD. Postgrad Med 2022; 134:763-775. [PMID: 36094155 DOI: 10.1080/00325481.2022.2124087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Smoking is a well-established risk factor for chronic obstructive pulmonary disease (COPD). Chronic lung inflammation continues even after smoking cessation and leads to COPD progression. To date, anti-inflammatory therapies are ineffective in improving pulmonary function and COPD symptoms, and new molecular targets are urgently needed to deal with this challenge. The receptor for advanced glycation end-products (RAGE) was shown to be relevant in COPD pathogenesis, since it is both a genetic determinant of low lung function and a determinant of COPD susceptibility. Moreover, RAGE is involved in the physiological response to cigarette smoke exposure. Since innate and acquired immunity plays an essential role in the development of chronic inflammation and emphysema in COPD, here we summarized the roles of RAGE and its ligand HMGB1 in COPD immunity.
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Affiliation(s)
- Lin Chen
- Department of Respiratory and Critical Care Medicine, Liuzhou People's Hospital, LiuZhou, Guangxi, China
| | - Xuejiao Sun
- Department of Respiratory and Critical Care Medicine, Liuzhou People's Hospital, LiuZhou, Guangxi, China
| | - Xiaoning Zhong
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
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Zhang X, Ye T, Li M, Yan H, Lin H, Lu H, Qi Z, Sheng H, He C. Association of Polymorphisms in Inflammation Genes With the Prognosis of Advanced Non-Small Cell Lung Cancer Patients Receiving Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors. Front Oncol 2022; 12:836117. [PMID: 35372081 PMCID: PMC8971721 DOI: 10.3389/fonc.2022.836117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/23/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundInflammation is not only involved in the development and progression of cancer but also affects the response to therapy. The aim of this study was to investigate the association of single nucleotide polymorphisms (SNPs) in inflammation genes with the prognosis of advanced non-small cell lung cancer (NSCLC) patients treated with epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs).MethodsForty-seven SNPs were genotyped in 318 advanced NSCLC patients receiving EGFR-TKIs. Of 318 patients, 182 (57.2%) patients died during follow-up period. We assessed the association of SNPs with the progression-free survival (PFS) and overall survival (OS) as well as calculated the weighted genetic risk score (GRS). We also explored the expression levels and prognostic values of inflammation genes in lung adenocarcinoma (LUAD) in Gene Expression Profiling Interactive Analysis (GEPIA) and using UCSC Xena, respectively. The relationship between the expression levels of IL15, IL17RA, AGER, MIF, and TNFRSF1A and EGFR mutation status was analyzed using UCSC Xena.ResultsIn single variant analyses, 3 SNPs (rs10519613, rs4819554, and rs4149570) were significantly associated with worse PFS. Five SNPs (rs10519613, rs4819554, rs2070600, rs755622, and rs4149570) were significantly with worse OS. In addition, high and intermediate GRSs (based on rs10519613, rs4819554, and rs4149570) were associated with worse PFS than those with low GRS. For OS, patients with high GRSs (based on rs10519613, rs4819554, rs2070600, rs755622, and rs4149570) had shorter survival time than those with low GRS. Furthermore, IL15, IL17RA, AGER, MIF, and TNFRSF1A were dysregulated in LUAD. There was difference in the expression level of TNFRSF1A between EGFR wildtype and EGFR-mutant LUAD. Both low AGER expression and high TNFRSF1A expression were significantly associated with worse PFS in LUAD. In addition, low IL17RA and AGER expression, high MIF and TNFRSF1A expression were significantly associated with worse OS in LUAD.ConclusionSNPs in inflammation genes could serve as prognostic biomarkers for NSCLC patients treated with EGFR-TKIs.
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Affiliation(s)
- Xuelin Zhang
- Department of Thoracic Surgery, The First People’s Hospital of Wenling, Taizhou, China
| | - Tengfei Ye
- Department of Pharmacy, The First People’s Hospital of Wenling, Taizhou, China
| | - Mingdong Li
- Department of Thoracic Surgery, The First People’s Hospital of Wenling, Taizhou, China
| | - Hongwang Yan
- Department of Thoracic Surgery, The First People’s Hospital of Wenling, Taizhou, China
| | - Hui Lin
- Department of Thoracic Surgery, The First People’s Hospital of Wenling, Taizhou, China
| | - Hongsheng Lu
- Department of Pathology, Taizhou Central Hospital, Taizhou, China
| | - Zecheng Qi
- Department of Thoracic Surgery, Taizhou Central Hospital, Taizhou, China
| | - Haihui Sheng
- Outdo Clinic, Shanghai Engineering Center for Molecular Medicine, National Engineering Center for Biochip at Shanghai, Shanghai, China
- *Correspondence: Haihui Sheng, ; Chunya He,
| | - Chunya He
- Department of Surgical Oncology, Taizhou Central Hospital, Taizhou, China
- *Correspondence: Haihui Sheng, ; Chunya He,
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10
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Navel V, Malecaze J, Belville C, Choltus H, Henrioux F, Dutheil F, Malecaze F, Chiambaretta F, Blanchon L, Sapin V. Dysregulation of Receptor for Advanced Glycation End Products (RAGE) Expression as a Biomarker of Keratoconus. DISEASE MARKERS 2022; 2022:1543742. [PMID: 35075374 PMCID: PMC8783726 DOI: 10.1155/2022/1543742] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/11/2021] [Accepted: 01/03/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Because of the implications of Receptor for Advanced Glycation End Products (RAGE) in keratoconus (KC), we describe a differential expression of RAGE transcripts and proteins in corneal tissues and tears of KC and healthy patients. METHODS Using a case-controlled study, corneal epitheliums and tears of KC and healthy subjects were obtained during corneal collagen cross-linking and photorefractive keratectomy (PKR) and during usual consultations. Quantitative reverse transcription (RT-qPCR) and Western-Blot were performed to analyze RAGE transcripts and proteins' expression in corneal tissues and tears. RESULTS One hundred and six patients were included in this study. The characteristics of the patients were as follows: 56 KC (25 corneal epithelium and 31 tears) and 50 control subjects (25 corneal epithelium and 25 tears). Transcripts of RAGE, HMGB1, and S100 family ligands were quantified by RT-qPCR, identifying a significantly higher expression of RAGE and HMGB1 in the healthy group than in the KC group (p = 0.03 and 0.04, respectively). Western Blot showed a significantly higher fl-RAGE expression in KC corneal epithelium than control (p < 0.001) and lower s-RAGE expression in KC tears than control (p = 0.04). CONCLUSIONS Linked with the inflammatory process occurring in KC pathophysiology, we propose for the first time that the RAGE expression (total and truncated forms of receptor and ligands) in KC corneal tissues and tear samples provides viable biomarkers.
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Affiliation(s)
- Valentin Navel
- University Hospital of Clermont-Ferrand, CHU Clermont-Ferrand, Ophthalmology, F-63000 Clermont-Ferrand, France
- Translational Approach to Epithelial Injury and Repair Team, University of Clermont Auvergne, CNRS UMR 6293, INSERM U1103, Genetic Reproduction and Development Laboratory (GReD), F-63000 Clermont-Ferrand, France
| | - Jean Malecaze
- University Hospital of Clermont-Ferrand, CHU Clermont-Ferrand, Ophthalmology, F-63000 Clermont-Ferrand, France
- Translational Approach to Epithelial Injury and Repair Team, University of Clermont Auvergne, CNRS UMR 6293, INSERM U1103, Genetic Reproduction and Development Laboratory (GReD), F-63000 Clermont-Ferrand, France
| | - Corinne Belville
- Translational Approach to Epithelial Injury and Repair Team, University of Clermont Auvergne, CNRS UMR 6293, INSERM U1103, Genetic Reproduction and Development Laboratory (GReD), F-63000 Clermont-Ferrand, France
| | - Héléna Choltus
- Translational Approach to Epithelial Injury and Repair Team, University of Clermont Auvergne, CNRS UMR 6293, INSERM U1103, Genetic Reproduction and Development Laboratory (GReD), F-63000 Clermont-Ferrand, France
| | - Fanny Henrioux
- Translational Approach to Epithelial Injury and Repair Team, University of Clermont Auvergne, CNRS UMR 6293, INSERM U1103, Genetic Reproduction and Development Laboratory (GReD), F-63000 Clermont-Ferrand, France
| | - Frédéric Dutheil
- University of Clermont Auvergne, CNRS, LaPSCo, Physiological and Psychosocial Stress, CHU Clermont-Ferrand, University Hospital of Clermont-Ferrand, Preventive and Occupational Medicine, Witty Fit, F-63000 Clermont-Ferrand, France
| | - François Malecaze
- Ophthalmology Department, Pierre-Paul Riquet Hospital, Toulouse University Hospital, Toulouse, France
| | - Frédéric Chiambaretta
- University Hospital of Clermont-Ferrand, CHU Clermont-Ferrand, Ophthalmology, F-63000 Clermont-Ferrand, France
- Translational Approach to Epithelial Injury and Repair Team, University of Clermont Auvergne, CNRS UMR 6293, INSERM U1103, Genetic Reproduction and Development Laboratory (GReD), F-63000 Clermont-Ferrand, France
| | - Loïc Blanchon
- Translational Approach to Epithelial Injury and Repair Team, University of Clermont Auvergne, CNRS UMR 6293, INSERM U1103, Genetic Reproduction and Development Laboratory (GReD), F-63000 Clermont-Ferrand, France
| | - Vincent Sapin
- Translational Approach to Epithelial Injury and Repair Team, University of Clermont Auvergne, CNRS UMR 6293, INSERM U1103, Genetic Reproduction and Development Laboratory (GReD), F-63000 Clermont-Ferrand, France
- Department of Biochemistry and Molecular Genetic, CHU Clermont-Ferrand, F-63000 Clermont-Ferrand, France
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11
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Kinscherf NA, Pehar M. Role and Therapeutic Potential of RAGE Signaling in Neurodegeneration. Curr Drug Targets 2022; 23:1191-1209. [PMID: 35702767 PMCID: PMC9589927 DOI: 10.2174/1389450123666220610171005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/29/2022] [Accepted: 04/29/2022] [Indexed: 01/03/2023]
Abstract
Activation of the receptor for advanced glycation end products (RAGE) has been shown to play an active role in the development of multiple neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease, and Amyotrophic Lateral Sclerosis. Although originally identified as a receptor for advanced glycation end products, RAGE is a pattern recognition receptor able to bind multiple ligands. The final outcome of RAGE signaling is defined in a context and cell type specific manner and can exert both neurotoxic and neuroprotective functions. Contributing to the complexity of the RAGE signaling network, different RAGE isoforms with distinctive signaling capabilities have been described. Moreover, multiple RAGE ligands bind other receptors and RAGE antagonism can significantly affect their signaling. Here, we discuss the outcome of celltype specific RAGE signaling in neurodegenerative pathologies. In addition, we will review the different approaches that have been developed to target RAGE signaling and their therapeutic potential. A clear understanding of the outcome of RAGE signaling in a cell type- and disease-specific manner would contribute to advancing the development of new therapies targeting RAGE. The ability to counteract RAGE neurotoxic signaling while preserving its neuroprotective effects would be critical for the success of novel therapies targeting RAGE signaling.
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Affiliation(s)
- Noah Alexander Kinscherf
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Mariana Pehar
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA.,Geriatric Research Education Clinical Center, Veterans Affairs Medical Center, Madison, WI, USA
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12
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Faiz A, Rathnayake SNH, Ten Hacken NHT, Guryev V, van den Berge M, Pouwels SD. Single-nucleotide polymorphism rs2070600 regulates AGER splicing and the sputum levels of the COPD biomarker soluble receptor for advanced glycation end-products. ERJ Open Res 2021; 7:00947-2020. [PMID: 34195255 PMCID: PMC8236754 DOI: 10.1183/23120541.00947-2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 04/24/2021] [Indexed: 11/05/2022] Open
Abstract
The COPD susceptibility SNP rs2070600 affects the levels of the COPD biomarker sRAGE in sputum as well as splicing of AGER. Moreover, @PouwelsScience et al. demonstrate large differences in sRAGE levels between serum and sputum. https://bit.ly/3t0pJtK.
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Affiliation(s)
- Alen Faiz
- Respiratory Bioinformatics and Molecular Biology Group, University of Technology Sydney, Sydney, Australia
| | - Senani N H Rathnayake
- Respiratory Bioinformatics and Molecular Biology Group, University of Technology Sydney, Sydney, Australia
| | - Nick H T Ten Hacken
- Dept of Pulmonary Diseases, University Medical Center Groningen, Groningen, The Netherlands
| | - Victor Guryev
- European Research Institute for the Biology of Ageing, Groningen, The Netherlands
| | - Maarten van den Berge
- Dept of Pulmonary Diseases, University Medical Center Groningen, Groningen, The Netherlands.,GRIAC Research Institute, University of Groningen, Groningen, The Netherlands
| | - Simon D Pouwels
- Dept of Pulmonary Diseases, University Medical Center Groningen, Groningen, The Netherlands.,GRIAC Research Institute, University of Groningen, Groningen, The Netherlands.,Dept of Pathology and Medical Biology, University Medical Center Groningen, Groningen, The Netherlands
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13
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Shen L, Zhang T, Yang Y, Lu D, Xu A, Li K. FPS-ZM1 Alleviates Neuroinflammation in Focal Cerebral Ischemia Rats via Blocking Ligand/RAGE/DIAPH1 Pathway. ACS Chem Neurosci 2021; 12:63-78. [PMID: 33300334 DOI: 10.1021/acschemneuro.0c00530] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Receptor for advanced glycation end products (RAGEs), a multiligand receptor belonging to the cell-surface immunoglobulin superfamily, has been reported to play a crucial role in neuroinflammation and neurodegenerative diseases. Here, we tested our hypothesis that the RAGE-specific antagonist FPS-ZM1 is neuroprotective against ischemic brain injury. Distal middle cerebral artery occlusion (MCAO) or sham operation was performed on anesthetized Sprague-Dawley male rats (n = 60), which were then treated with FPS-ZM1 or vehicle (four groups in total = Vehicle + MCAO, FPS-ZM1 + MCAO, Vehicle + sham, and FPS-ZM1 + sham). After 1 week, neurological function was evaluated, and then, brain tissues were collected for 2,3,5-triphenyltetrazolium chloride staining, Nissl staining, TUNEL staining, Western blotting, and immunohistochemical analyses. FPS-ZM1 treatment after MCAO markedly attenuated neurological deficits and reduced the infarct area. More interestingly, FPS-ZM1 inhibited ischemia-induced astrocytic activation and microgliosis and decreased the elevated levels of proinflammatory cytokines. Furthermore, FPS-ZM1 blocked the increase in the level of RAGE and, notably, of DIAPH1, the key cytoplasmic hub for RAGE-ligand-mediated activation of cellular signaling. Accordingly, FPS-ZM1 also reversed the MCAO-induced increase in phosphorylation of NF-κB targets that are potentially downstream from RAGE/DIAPH1. Our findings reveal that FPS-ZM1 treatment reduces neuroinflammation in rats with focal cerebral ischemia and further suggest that the ligand/RAGE/DIAPH1 pathway contributes to this FPS-ZM1-mediated alleviation of neuroinflammation.
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Affiliation(s)
- Lingling Shen
- Department of Neurology and Stroke Centre, the Fist Affiliated Hospital of Jinan University, Guangzhou 510632, China
- Clinical Neuroscience Institute of Jinan University, Guangzhou 510632, China
| | - Tianyuan Zhang
- Department of Neurology and Stroke Centre, the Fist Affiliated Hospital of Jinan University, Guangzhou 510632, China
- Clinical Neuroscience Institute of Jinan University, Guangzhou 510632, China
| | - Yu Yang
- Department of Neurology and Stroke Centre, the Fist Affiliated Hospital of Jinan University, Guangzhou 510632, China
- Clinical Neuroscience Institute of Jinan University, Guangzhou 510632, China
| | - Dan Lu
- Department of Neurology and Stroke Centre, the Fist Affiliated Hospital of Jinan University, Guangzhou 510632, China
- Clinical Neuroscience Institute of Jinan University, Guangzhou 510632, China
| | - Anding Xu
- Department of Neurology and Stroke Centre, the Fist Affiliated Hospital of Jinan University, Guangzhou 510632, China
- Clinical Neuroscience Institute of Jinan University, Guangzhou 510632, China
| | - Keshen Li
- Clinical Neuroscience Institute of Jinan University, Guangzhou 510632, China
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14
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C RC, Lukose B, Rani P. G82S RAGE polymorphism influences amyloid-RAGE interactions relevant in Alzheimer's disease pathology. PLoS One 2020; 15:e0225487. [PMID: 33119615 PMCID: PMC7595441 DOI: 10.1371/journal.pone.0225487] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 09/05/2020] [Indexed: 11/18/2022] Open
Abstract
Receptor for advanced glycation end products (RAGE) has been implicated in the pathophysiology of Alzheimers disease(AD) due to its ability to bind amyloid-beta (Aβ42) and mediate inflammatory response. G82S RAGE polymorphism is associated with AD but the molecular mechanism for this association is not understood. Our previous in silico study indicated a higher binding affinity for mutated G82S RAGE, which could be caused due to changes in N linked glycosylation at residue N81. To confirm this hypothesis, in the present study molecular dynamics (MD) simulations were used to simulate the wild type (WT) and G82S glycosylated structures of RAGE to identify the global structural changes and to find the binding efficiency with Aβ42 peptide. Binding pocket analysis of the MD trajectory showed that cavity/binding pocket in mutant G82S glycosylated RAGE variants is more exposed and accessible to external ligands compared to WT RAGE, which can enhance the affinity of RAGE for Aβ. To validate the above concept, an in vitro binding study was carried using SHSY5Y cell line expressing recombinant WT and mutated RAGE variant individually to which HiLyte Fluor labeled Aβ42 was incubated at different concentrations. Saturated binding kinetics method was adopted to determine the Kd values for Aβ42 binding to RAGE. The Kd value for Aβ42- WT and Aβ42-mutant RAGE binding were 92±40 nM (95% CI-52 to 152nM; R2-0.92) and 45±20 nM (95% CI -29 to 64nM; R2-0.93), respectively. The Kd value of <100nM observed for both variants implicates RAGE as a high-affinity receptor for Aβ42 and mutant RAGE has higher affinity compared to WT. The alteration in binding affinity is responsible for activation of the inflammatory pathway as implicated by enhanced expression of TNFα and IL6 in mutant RAGE expressing cell line which gives a mechanistic view for the G82S RAGE association with AD.
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Affiliation(s)
- Rani Cathrine. C
- Department of Biotechnology, PSG College of Technology, Coimbatore, Tamil Nadu, India
| | - Bincy Lukose
- Department of Biotechnology, PSG College of Technology, Coimbatore, Tamil Nadu, India
| | - P. Rani
- Department of Biotechnology, PSG College of Technology, Coimbatore, Tamil Nadu, India
- * E-mail:
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15
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Egaña-Gorroño L, López-Díez R, Yepuri G, Ramirez LS, Reverdatto S, Gugger PF, Shekhtman A, Ramasamy R, Schmidt AM. Receptor for Advanced Glycation End Products (RAGE) and Mechanisms and Therapeutic Opportunities in Diabetes and Cardiovascular Disease: Insights From Human Subjects and Animal Models. Front Cardiovasc Med 2020; 7:37. [PMID: 32211423 PMCID: PMC7076074 DOI: 10.3389/fcvm.2020.00037] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 02/25/2020] [Indexed: 12/21/2022] Open
Abstract
Obesity and diabetes are leading causes of cardiovascular morbidity and mortality. Although extensive strides have been made in the treatments for non-diabetic atherosclerosis and its complications, for patients with diabetes, these therapies provide less benefit for protection from cardiovascular disease (CVD). These considerations spur the concept that diabetes-specific, disease-modifying therapies are essential to identify, especially as the epidemics of obesity and diabetes continue to expand. Hence, as hyperglycemia is a defining feature of diabetes, it is logical to probe the impact of the specific consequences of hyperglycemia on the vessel wall, immune cell perturbation, and endothelial dysfunction-all harbingers to the development of CVD. In this context, high levels of blood glucose stimulate the formation of the irreversible advanced glycation end products, the products of non-enzymatic glycation and oxidation of proteins and lipids. AGEs accumulate in diabetic circulation and tissues and the interaction of AGEs with their chief cellular receptor, receptor for AGE or RAGE, contributes to vascular and immune cell perturbation. The cytoplasmic domain of RAGE lacks endogenous kinase activity; the discovery that this intracellular domain of RAGE binds to the formin, DIAPH1, and that DIAPH1 is essential for RAGE ligand-mediated signal transduction, identifies the specific cellular means by which RAGE functions and highlights a new target for therapeutic interruption of RAGE signaling. In human subjects, prominent signals for RAGE activity include the presence and levels of two forms of soluble RAGE, sRAGE, and endogenous secretory (es) RAGE. Further, genetic studies have revealed single nucleotide polymorphisms (SNPs) of the AGER gene (AGER is the gene encoding RAGE) and DIAPH1, which display associations with CVD. This Review presents current knowledge regarding the roles for RAGE and DIAPH1 in the causes and consequences of diabetes, from obesity to CVD. Studies both from human subjects and animal models are presented to highlight the breadth of evidence linking RAGE and DIAPH1 to the cardiovascular consequences of these metabolic disorders.
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Affiliation(s)
- Lander Egaña-Gorroño
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University School of Medicine, New York, NY, United States
| | - Raquel López-Díez
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University School of Medicine, New York, NY, United States
| | - Gautham Yepuri
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University School of Medicine, New York, NY, United States
| | - Lisa S Ramirez
- Department of Chemistry, University of Albany, State University of New York, Albany, NY, United States
| | - Sergey Reverdatto
- Department of Chemistry, University of Albany, State University of New York, Albany, NY, United States
| | - Paul F Gugger
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University School of Medicine, New York, NY, United States
| | - Alexander Shekhtman
- Department of Chemistry, University of Albany, State University of New York, Albany, NY, United States
| | - Ravichandran Ramasamy
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University School of Medicine, New York, NY, United States
| | - Ann Marie Schmidt
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University School of Medicine, New York, NY, United States
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16
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Abstract
Genome-wide association studies (GWAS) have identified more than 20 genomic regions associated with chronic obstructive pulmonary disease (COPD) susceptibility. However, the functional genetic variants within these COPD GWAS loci remain largely unidentified, thus limiting translation of these GWAS discoveries to new disease insights. Whole-exome and whole-genome sequencing studies have the potential to identify rare genetic determinants of COPD. Efforts to understand the biological effects of novel COPD genetic loci include gene-targeted murine models, integration of additional omics data (including transcriptomics and epigenetics), and functional variant identification. COPD genetic determinants likely act through biological networks, and a variety of network-based approaches have been used to gain insights into COPD susceptibility and heterogeneity.
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17
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Wadén JM, Dahlström EH, Elonen N, Thorn LM, Wadén J, Sandholm N, Forsblom C, Groop PH. Soluble receptor for AGE in diabetic nephropathy and its progression in Finnish individuals with type 1 diabetes. Diabetologia 2019; 62:1268-1274. [PMID: 31127314 PMCID: PMC6559996 DOI: 10.1007/s00125-019-4883-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 03/26/2019] [Indexed: 01/11/2023]
Abstract
AIMS/HYPOTHESIS Activation of the receptor for AGE (RAGE) has been shown to be associated with diabetic nephropathy. The soluble isoform of RAGE (sRAGE) is considered to function as a decoy receptor for RAGE ligands and thereby protects against diabetic complications. A possible association between sRAGE and diabetic nephropathy is still, however, controversial and a more comprehensive analysis of sRAGE with respect to diabetic nephropathy in type 1 diabetes is therefore warranted. METHODS sRAGE was measured in baseline serum samples from 3647 participants with type 1 diabetes from the nationwide multicentre Finnish Diabetic Nephropathy (FinnDiane) Study. Associations between sRAGE and diabetic nephropathy, as well as sRAGE and diabetic nephropathy progression, were evaluated by regression, competing risks and receiver operating characteristic curve analyses. The non-synonymous SNP rs2070600 (G82S) was used to test causality in the Mendelian randomisation analysis. RESULTS Baseline sRAGE concentrations were highest in participants with diabetic nephropathy, compared with participants with a normal AER or those with microalbuminuria. Baseline sRAGE was associated with progression from macroalbuminuria to end-stage renal disease (ESRD) in the competing risks analyses, but this association disappeared when eGFR was entered into the model. The SNP rs2070600 was strongly associated with sRAGE concentrations and with progression from macroalbuminuria to ESRD. However, Mendelian randomisation analysis did not support a causal role for sRAGE in progression to ESRD. CONCLUSIONS/INTERPRETATION sRAGE is associated with progression from macroalbuminuria to ESRD, but does not add predictive value on top of conventional risk factors. Although sRAGE is a biomarker of diabetic nephropathy, in light of the Mendelian randomisation analysis it does not seem to be causally related to progression from macroalbuminuria to ESRD.
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Affiliation(s)
- Jenny M Wadén
- Folkhälsan Research Center, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, 00014, Helsinki, Finland
- Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programs Unit, Diabetes and Obesity, University of Helsinki, Helsinki, Finland
| | - Emma H Dahlström
- Folkhälsan Research Center, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, 00014, Helsinki, Finland
- Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programs Unit, Diabetes and Obesity, University of Helsinki, Helsinki, Finland
| | - Nina Elonen
- Folkhälsan Research Center, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, 00014, Helsinki, Finland
- Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programs Unit, Diabetes and Obesity, University of Helsinki, Helsinki, Finland
| | - Lena M Thorn
- Folkhälsan Research Center, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, 00014, Helsinki, Finland
- Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programs Unit, Diabetes and Obesity, University of Helsinki, Helsinki, Finland
| | - Johan Wadén
- Folkhälsan Research Center, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, 00014, Helsinki, Finland
- Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programs Unit, Diabetes and Obesity, University of Helsinki, Helsinki, Finland
| | - Niina Sandholm
- Folkhälsan Research Center, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, 00014, Helsinki, Finland
- Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programs Unit, Diabetes and Obesity, University of Helsinki, Helsinki, Finland
| | - Carol Forsblom
- Folkhälsan Research Center, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, 00014, Helsinki, Finland
- Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programs Unit, Diabetes and Obesity, University of Helsinki, Helsinki, Finland
| | - Per-Henrik Groop
- Folkhälsan Research Center, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, 00014, Helsinki, Finland.
- Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
- Research Programs Unit, Diabetes and Obesity, University of Helsinki, Helsinki, Finland.
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia.
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18
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Insights into the effects of N-glycosylation on the characteristics of the VC1 domain of the human receptor for advanced glycation end products (RAGE) secreted by Pichia pastoris. Glycoconj J 2019; 36:27-38. [DOI: 10.1007/s10719-018-09855-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/23/2018] [Accepted: 12/18/2018] [Indexed: 01/11/2023]
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19
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Castaldi PJ, Guo F, Qiao D, Du F, Naing ZZC, Li Y, Pham B, Mikkelsen TS, Cho MH, Silverman EK, Zhou X. Identification of Functional Variants in the FAM13A Chronic Obstructive Pulmonary Disease Genome-Wide Association Study Locus by Massively Parallel Reporter Assays. Am J Respir Crit Care Med 2019; 199:52-61. [PMID: 30079747 PMCID: PMC6353020 DOI: 10.1164/rccm.201802-0337oc] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 08/01/2018] [Indexed: 12/26/2022] Open
Abstract
RATIONALE The identification of causal variants responsible for disease associations from genome-wide association studies (GWASs) facilitates functional understanding of the biological mechanisms by which those genetic variants influence disease susceptibility. OBJECTIVE We aim to identify causal variants in or near the FAM13A (family with sequence similarity member 13A) GWAS locus associated with chronic obstructive pulmonary disease (COPD). METHODS We used an integrated approach featuring conditional genetic analysis, massively parallel reporter assays (MPRAs), traditional reporter assays, chromatin conformation capture assays, and clustered regularly interspaced short palindromic repeats (CRISPR)-based gene editing to characterize COPD-associated regulatory variants in the FAM13A region in human bronchial epithelial cell lines. MEASUREMENTS AND MAIN RESULTS Conditional genetic association suggests the presence of two independent COPD association signals in FAM13A. MPRAs identified 45 regulatory variants within FAM13A, among which six variants were prioritized for further investigation. Three COPD-associated variants demonstrated significant allele-specific activity in reporter assays. One of three variants, rs2013701, was tested in the endogenous genomic context by CRISPR-based genome editing that confirmed its allele-specific effects on FAM13A expression and on cell proliferation, providing functional characterization for this COPD-associated variant. CONCLUSIONS The human GWAS association near FAM13A may contain independent association signals. MPRAs identified multiple functional variants in this region, including rs2013701, a putative COPD-causing variant with allele-specific regulatory activity.
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Affiliation(s)
- Peter J. Castaldi
- Channing Division of Network Medicine and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts; and
| | - Feng Guo
- Channing Division of Network Medicine and
| | - Dandi Qiao
- Channing Division of Network Medicine and
| | - Fei Du
- Channing Division of Network Medicine and
| | | | - Yan Li
- Channing Division of Network Medicine and
| | - Betty Pham
- Channing Division of Network Medicine and
| | | | - Michael H. Cho
- Channing Division of Network Medicine and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts; and
| | - Edwin K. Silverman
- Channing Division of Network Medicine and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts; and
| | - Xiaobo Zhou
- Channing Division of Network Medicine and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts; and
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20
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Palanissami G, Paul SFD. RAGE and Its Ligands: Molecular Interplay Between Glycation, Inflammation, and Hallmarks of Cancer—a Review. Discov Oncol 2018; 9:295-325. [DOI: 10.1007/s12672-018-0342-9] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 06/25/2018] [Indexed: 12/15/2022] Open
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21
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Kumar V, Fleming T, Terjung S, Gorzelanny C, Gebhardt C, Agrawal R, Mall MA, Ranzinger J, Zeier M, Madhusudhan T, Ranjan S, Isermann B, Liesz A, Deshpande D, Häring HU, Biswas SK, Reynolds PR, Hammes HP, Peperkok R, Angel P, Herzig S, Nawroth PP. Homeostatic nuclear RAGE-ATM interaction is essential for efficient DNA repair. Nucleic Acids Res 2017; 45:10595-10613. [PMID: 28977635 PMCID: PMC5737477 DOI: 10.1093/nar/gkx705] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 08/02/2017] [Indexed: 12/12/2022] Open
Abstract
The integrity of genome is a prerequisite for healthy life. Indeed, defects in DNA repair have been associated with several human diseases, including tissue-fibrosis, neurodegeneration and cancer. Despite decades of extensive research, the spatio-mechanical processes of double-strand break (DSB)-repair, especially the auxiliary factor(s) that can stimulate accurate and timely repair, have remained elusive. Here, we report an ATM-kinase dependent, unforeseen function of the nuclear isoform of the Receptor for Advanced Glycation End-products (nRAGE) in DSB-repair. RAGE is phosphorylated at Serine376 and Serine389 by the ATM kinase and is recruited to the site of DNA-DSBs via an early DNA damage response. nRAGE preferentially co-localized with the MRE11 nuclease subunit of the MRN complex and orchestrates its nucleolytic activity to the ATR kinase signaling. This promotes efficient RPA2S4-S8 and CHK1S345 phosphorylation and thereby prevents cellular senescence, IPF and carcinoma formation. Accordingly, loss of RAGE causatively linked to perpetual DSBs signaling, cellular senescence and fibrosis. Importantly, in a mouse model of idiopathic pulmonary fibrosis (RAGE−/−), reconstitution of RAGE efficiently restored DSB-repair and reversed pathological anomalies. Collectively, this study identifies nRAGE as a master regulator of DSB-repair, the absence of which orchestrates persistent DSB signaling to senescence, tissue-fibrosis and oncogenesis.
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Affiliation(s)
- Varun Kumar
- Department of Medicine I and Clinical Chemistry, University Hospital of Heidelberg, INF 410, Heidelberg, Germany.,German Center for Diabetes Research (DZD), Helmholtz-Zentrum, München, Germany
| | - Thomas Fleming
- Department of Medicine I and Clinical Chemistry, University Hospital of Heidelberg, INF 410, Heidelberg, Germany.,German Center for Diabetes Research (DZD), Helmholtz-Zentrum, München, Germany
| | - Stefan Terjung
- European Molecular Biology Laboratory, Advanced Light Microscopy Facility, Heidelberg, Germany
| | - Christian Gorzelanny
- Experimental Dermatology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Christoffer Gebhardt
- Division of Dermatooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Division of Signal Transduction and Growth Control DKFZ DKFZ-ZMBH Alliance, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Raman Agrawal
- Department of Translational Pulmonology, Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), University of Heidelberg, INF 156, Heidelberg, Germany
| | - Marcus A Mall
- Department of Translational Pulmonology, Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), University of Heidelberg, INF 156, Heidelberg, Germany
| | - Julia Ranzinger
- Department of Nephrology, University of Heidelberg, Heidelberg, INF 410, Heidelberg, Germany
| | - Martin Zeier
- Department of Nephrology, University of Heidelberg, Heidelberg, INF 410, Heidelberg, Germany
| | - Thati Madhusudhan
- Institute of Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke-University, Magdeburg, Germany
| | - Satish Ranjan
- Institute of Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke-University, Magdeburg, Germany
| | - Berend Isermann
- Institute of Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke-University, Magdeburg, Germany
| | - Arthur Liesz
- Institute for Stroke and Dementia Research (ISD) University Hospital München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Divija Deshpande
- Department of Medicine I and Clinical Chemistry, University Hospital of Heidelberg, INF 410, Heidelberg, Germany
| | - Hans-Ulrich Häring
- German Center for Diabetes Research (DZD), Helmholtz-Zentrum, München, Germany.,Department of Internal Medicine, University of Tübingen, Tübingen, Germany
| | - Subrata K Biswas
- Department of Biochemistry and Molecular Biology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Shahbag, Dhaka 1000, Bangladesh
| | - Paul R Reynolds
- Department of Physiology and Developmental Biology, Brigham Young University, 3054 Life Sciences Building, Provo, UT 84602, USA
| | - Hans-Peter Hammes
- 5th Medical Department, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Rainer Peperkok
- European Molecular Biology Laboratory, Advanced Light Microscopy Facility, Heidelberg, Germany
| | - Peter Angel
- Division of Signal Transduction and Growth Control DKFZ DKFZ-ZMBH Alliance, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stephan Herzig
- Department of Medicine I and Clinical Chemistry, University Hospital of Heidelberg, INF 410, Heidelberg, Germany.,German Center for Diabetes Research (DZD), Helmholtz-Zentrum, München, Germany.,Institute for Diabetes and Cancer, Helmholtz Center Munich, Neuherberg, Germany.,Joint Heidelberg-IDC Translational Diabetes Program, Helmholtz-Zentrum, München, Germany
| | - Peter P Nawroth
- Department of Medicine I and Clinical Chemistry, University Hospital of Heidelberg, INF 410, Heidelberg, Germany.,German Center for Diabetes Research (DZD), Helmholtz-Zentrum, München, Germany.,Joint Heidelberg-IDC Translational Diabetes Program, Helmholtz-Zentrum, München, Germany
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22
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Gao J, Deng L, Wang Y, Shi Y, Xiao X, Zheng X, Ren H, Xu D. Relationship between RAGE gene polymorphisms and cardiovascular disease prognosis in the Chinese Han population. Mol Genet Genomics 2017; 292:1139-1149. [PMID: 28660308 DOI: 10.1007/s00438-017-1341-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/20/2017] [Indexed: 01/31/2023]
Abstract
Cardiovascular disease (CVD) is the leading cause of death in China. This study aimed to investigate whether RAGE gene polymorphisms are associated with the prognosis of various cardiovascular diseases in the Chinese Han population. This study was conducted from July 2004 to December 2005 and a total of 425 subjects from Guangdong province were enrolled. Genotyping of the three polymorphisms (-429T/C, 1704G/T, and G82S) in the RAGE gene was performed with polymerase chain reaction/restriction fragment length polymorphism (PCR-RFLP). Patients were followed for 6.5 years to watch for the development of cardiovascular events and mortality. Subjects with the S mutation of the G82S polymorphism had a significantly higher risk of all-cause mortality and acute myocardial infarction (AMI) than did those with wild-type homozygosity. Logistic regression analysis and Kaplan-Meier analysis all revealed that the G82S polymorphism of the RAGE gene was associated with a significantly increased risk of all-cause mortality and AMI. However, the -429T/C and 1704G/T polymorphisms were not shown to have any effect on prognosis. In conclusion, the G82S variant of the RAGE gene was significantly associated with an increased risk of all-cause mortality and AMI in the Chinese Han population.
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Affiliation(s)
- Jinxiong Gao
- Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838 Northern Guangzhou Ave, Guangzhou, 510515, Guangdong, China.,Department of Cardiology, Boai Hospital of Zhongshan, Zhongshan, China
| | - Liehua Deng
- Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838 Northern Guangzhou Ave, Guangzhou, 510515, Guangdong, China
| | - Ying Wang
- Department of Cardiology, Boai Hospital of Zhongshan, Zhongshan, China
| | - Yanke Shi
- Department of Cardiology, Boai Hospital of Zhongshan, Zhongshan, China
| | - Xiaohua Xiao
- Department of Cardiology, Boai Hospital of Zhongshan, Zhongshan, China
| | - Xueou Zheng
- Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838 Northern Guangzhou Ave, Guangzhou, 510515, Guangdong, China
| | - Hao Ren
- Department of Rheumatology, Nanfang Hospital, Southern Medical University, 1838 Northern Guangzhou Ave, Guangzhou, 510515, Guangdong, China.
| | - Dingli Xu
- Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838 Northern Guangzhou Ave, Guangzhou, 510515, Guangdong, China.
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23
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Plasma Soluble Receptor for Advanced Glycation End Products in Idiopathic Pulmonary Fibrosis. Ann Am Thorac Soc 2017; 14:628-635. [PMID: 28248552 PMCID: PMC5427736 DOI: 10.1513/annalsats.201606-485oc] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
RATIONALE The receptor for advanced glycation end products (RAGE) is underexpressed in idiopathic pulmonary fibrosis (IPF) lung, but the role of RAGE in human lung fibrosis remains uncertain. OBJECTIVES To examine (1) the association between IPF risk and variation at rs2070600, a functional missense variant in AGER (the gene that codes for RAGE), and (2) the associations between plasma-soluble RAGE (sRAGE) levels with disease severity and time to death or lung transplant in IPF. METHODS We genotyped the rs2070600 single-nucleotide polymorphism in 108 adults with IPF and 324 race-/ethnicity-matched control subjects. We measured plasma sRAGE by ELISA in 103 adults with IPF. We used generalized linear and additive models as well as Cox models to control for potential confounders. We repeated our analyses in 168 (genetic analyses) and 177 (sRAGE analyses) adults with other forms of interstitial lung disease (ILD). RESULTS There was no association between rs2070600 variation among adults with IPF (P = 0.31). Plasma sRAGE levels were lower among adults with IPF and other forms of ILD than in control subjects (P < 0.001). The rs2070600 allele A was associated with a 49% lower sRAGE level (95% confidence interval [CI], 11 to 71%; P = 0.02) among adults with IPF. In adjusted analyses, lower sRAGE levels were associated with greater disease severity (14% sRAGE decrement per 10% FVC decrement; 95% CI, 5 to 22%) and a higher rate of death or lung transplant at 1 year (adjusted hazard ratio, 1.9 per logarithmic unit of sRAGE decrement; 95% CI, 1.2-3.3) in IPF. Similar findings were observed in a heterogeneous group of adults with other forms of ILD. CONCLUSIONS Lower plasma sRAGE levels may be a biological measure of disease severity in IPF. Variation at the rs2070600 single-nucleotide polymorphism was not associated with IPF risk.
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24
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Miller S, Henry AP, Hodge E, Kheirallah AK, Billington CK, Rimington TL, Bhaker SK, Obeidat M, Melén E, Merid SK, Swan C, Gowland C, Nelson CP, Stewart CE, Bolton CE, Kilty I, Malarstig A, Parker SG, Moffatt MF, Wardlaw AJ, Hall IP, Sayers I. The Ser82 RAGE Variant Affects Lung Function and Serum RAGE in Smokers and sRAGE Production In Vitro. PLoS One 2016; 11:e0164041. [PMID: 27755550 PMCID: PMC5068780 DOI: 10.1371/journal.pone.0164041] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 09/19/2016] [Indexed: 12/30/2022] Open
Abstract
INTRODUCTION Genome-Wide Association Studies have identified associations between lung function measures and Chronic Obstructive Pulmonary Disease (COPD) and chromosome region 6p21 containing the gene for the Advanced Glycation End Product Receptor (AGER, encoding RAGE). We aimed to (i) characterise RAGE expression in the lung, (ii) identify AGER transcripts, (iii) ascertain if SNP rs2070600 (Gly82Ser C/T) is associated with lung function and serum sRAGE levels and (iv) identify whether the Gly82Ser variant is functionally important in altering sRAGE levels in an airway epithelial cell model. METHODS Immunohistochemistry was used to identify RAGE protein expression in 26 human tissues and qPCR was used to quantify AGER mRNA in lung cells. Gene expression array data was used to identify AGER expression during lung development in 38 fetal lung samples. RNA-Seq was used to identify AGER transcripts in lung cells. sRAGE levels were assessed in cells and patient serum by ELISA. BEAS2B-R1 cells were transfected to overexpress RAGE protein with either the Gly82 or Ser82 variant and sRAGE levels identified. RESULTS Immunohistochemical assessment of 6 adult lung samples identified high RAGE expression in the alveoli of healthy adults and individuals with COPD. AGER/RAGE expression increased across developmental stages in human fetal lung at both the mRNA (38 samples) and protein levels (20 samples). Extensive AGER splicing was identified. The rs2070600T (Ser82) allele is associated with higher FEV1, FEV1/FVC and lower serum sRAGE levels in UK smokers. Using an airway epithelium model overexpressing the Gly82 or Ser82 variants we found that HMGB1 activation of the RAGE-Ser82 receptor results in lower sRAGE production. CONCLUSIONS This study provides new information regarding the expression profile and potential role of RAGE in the human lung and shows a functional role of the Gly82Ser variant. These findings advance our understanding of the potential mechanisms underlying COPD particularly for carriers of this AGER polymorphism.
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Affiliation(s)
- Suzanne Miller
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
- * E-mail:
| | - Amanda P. Henry
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Emily Hodge
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | | | | | - Tracy L. Rimington
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Sangita K. Bhaker
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Ma’en Obeidat
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Simon K. Merid
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Caroline Swan
- Department of Biology, University of York, York, United Kingdom
| | - Catherine Gowland
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Carl P. Nelson
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Ceri E. Stewart
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Charlotte E. Bolton
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Iain Kilty
- Pfizer Worldwide Research & Development, Cambridge, Massachusetts, United States of America
| | - Anders Malarstig
- Pfizer Worldwide Research & Development, Cambridge, United Kingdom
| | - Stuart G. Parker
- Institute for Ageing and Health, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne, United Kingdom
| | - Miriam F. Moffatt
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Andrew J. Wardlaw
- Institute for Lung Health, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Ian P. Hall
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Ian Sayers
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
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25
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Miyashita M, Watanabe T, Ichikawa T, Toriumi K, Horiuchi Y, Kobori A, Kushima I, Hashimoto R, Fukumoto M, Koike S, Ujike H, Arinami T, Tatebayashi Y, Kasai K, Takeda M, Ozaki N, Okazaki Y, Yoshikawa T, Amano N, Washizuka S, Yamamoto H, Miyata T, Itokawa M, Yamamoto Y, Arai M. The regulation of soluble receptor for AGEs contributes to carbonyl stress in schizophrenia. Biochem Biophys Res Commun 2016; 479:447-452. [PMID: 27641663 DOI: 10.1016/j.bbrc.2016.09.074] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 09/15/2016] [Indexed: 11/28/2022]
Abstract
Our previous study showed that enhanced carbonyl stress is closely related to schizophrenia. The endogenous secretory receptor for advanced glycation end-products (esRAGE) is a splice variant of the AGER gene and is one of the soluble forms of RAGE. esRAGE is considered to be a key molecule for alleviating the burden of carbonyl stress by entrapping advanced glycation end-products (AGEs). In the current study, we conducted genetic association analyses focusing on AGER, in which we compared 212 schizophrenic patients to 214 control subjects. We also compared esRAGE levels among a subgroup of 104 patients and 89 controls and further carried out measurements of total circulating soluble RAGE (sRAGE) in 25 patients and 49 healthy subjects. Although the genetic association study yielded inconclusive results, multiple regression analysis indicated that a specific haplotype composed of rs17846798, rs2071288, and a 63 bp deletion, which were in perfect linkage disequilibrium (r2 = 1), and rs2070600 (Gly82Ser) were significantly associated with a marked decrease in serum esRAGE levels. Furthermore, compared to healthy subjects, schizophrenia showed significantly lower esRAGE (p = 0.007) and sRAGE (p = 0.03) levels, respectively. This is the first study to show that serum esRAGE levels are regulated by a newly identified specific haplotype in AGER and that a subpopulation of schizophrenic patients are more vulnerable to carbonyl stress.
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Affiliation(s)
- Mitsuhiro Miyashita
- Project for Schizophrenia Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan; Department of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Tokyo, Japan; Department of Psychiatry, Shinshu University School of Medicine, Matsumoto, Japan.
| | - Takuo Watanabe
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Tomoe Ichikawa
- Project for Schizophrenia Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Kazuya Toriumi
- Project for Schizophrenia Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Yasue Horiuchi
- Project for Schizophrenia Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Akiko Kobori
- Project for Schizophrenia Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Itaru Kushima
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ryota Hashimoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Motoyuki Fukumoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shinsuke Koike
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | - Tadao Arinami
- Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Yoshitaka Tatebayashi
- Affective Disorder Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masatoshi Takeda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuji Okazaki
- Department of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Tokyo, Japan
| | - Takeo Yoshikawa
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Wako, Japan
| | - Naoji Amano
- Department of Psychiatry, Shinshu University School of Medicine, Matsumoto, Japan
| | - Shinsuke Washizuka
- Department of Psychiatry, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hiroshi Yamamoto
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Toshio Miyata
- Molecular Medicine and Therapy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masanari Itokawa
- Project for Schizophrenia Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan; Department of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Tokyo, Japan
| | - Yasuhiko Yamamoto
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Makoto Arai
- Project for Schizophrenia Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
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26
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Rowisha M, El-Batch M, El Shikh T, El Melegy S, Aly H. Soluble receptor and gene polymorphism for AGE: relationship with obesity and cardiovascular risks. Pediatr Res 2016; 80:67-71. [PMID: 26991258 DOI: 10.1038/pr.2016.55] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Accepted: 12/30/2015] [Indexed: 01/24/2023]
Abstract
BACKGROUND Obesity in adolescents has quadrupled in the past 30 y. Markers for cardiovascular risks are needed in this population. We hypothesized that soluble receptor for advanced glycation end products (sRAGE) and asymmetric dimethyl arginine (ADMA) can correlate with carotid intima-media thickness (cIMT), a known index of subclinical atherosclerosis. We also aimed to evaluate the frequency of (Gly82Ser) RAGE gene polymorphism in obese adolescents. METHODS Obese and nonobese adolescents were evaluated in a cross-sectional study for lipid profile, insulin resistance, ADMA, sRAGE, and RAGE gene (Gly 82 Ser) polymorphism. We measured cIMT in all subjects and performed correlation analyses with all markers. RESULTS The study included 50 obese and 40 healthy control adolescents. Compared to controls, obese subjects had less sRAGE (P = 0.02) and greater cIMT (P = 0.006), insulin resistance (P < 0.0001), and ADMA (P < 0.0001). In a multivariate linear regression model, sRAGE was associated with cIMT (β = 0.28, P = 0.04). Both GS and SS genotypes of RAGE were more frequent in obese than controls (P = 0.04). CONCLUSION Increased ADMA and decreased sRAGE are associated with cardiovascular risks in obese adolescents. The S allele in RAGE gene is more frequently detected with obesity. The role of RAGE gene and mechanisms leading to cardiovascular risks need further studying.
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Affiliation(s)
- Mohamed Rowisha
- Department of Pediatrics, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Manal El-Batch
- Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Thanaa El Shikh
- Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Salwa El Melegy
- Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Hany Aly
- Department of Pediatrics, the George Washington University and Children's National Medical Center, Washington, DC
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27
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Hobbs BD, Parker MM, Chen H, Lao T, Hardin M, Qiao D, Hawrylkiewicz I, Sliwinski P, Yim JJ, Kim WJ, Kim DK, Castaldi PJ, Hersh CP, Morrow J, Celli BR, Pinto-Plata VM, Criner GJ, Marchetti N, Bueno R, Agustí A, Make BJ, Crapo JD, Calverley PM, Donner CF, Lomas DA, Wouters EFM, Vestbo J, Paré PD, Levy RD, Rennard SI, Zhou X, Laird NM, Lin X, Beaty TH, Silverman EK, Cho MH. Exome Array Analysis Identifies a Common Variant in IL27 Associated with Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2016; 194:48-57. [PMID: 26771213 PMCID: PMC4960630 DOI: 10.1164/rccm.201510-2053oc] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/15/2016] [Indexed: 12/14/2022] Open
Abstract
RATIONALE Chronic obstructive pulmonary disease (COPD) susceptibility is in part related to genetic variants. Most genetic studies have been focused on genome-wide common variants without a specific focus on coding variants, but common and rare coding variants may also affect COPD susceptibility. OBJECTIVES To identify coding variants associated with COPD. METHODS We tested nonsynonymous, splice, and stop variants derived from the Illumina HumanExome array for association with COPD in five study populations enriched for COPD. We evaluated single variants with a minor allele frequency greater than 0.5% using logistic regression. Results were combined using a fixed effects meta-analysis. We replicated novel single-variant associations in three additional COPD cohorts. MEASUREMENTS AND MAIN RESULTS We included 6,004 control subjects and 6,161 COPD cases across five cohorts for analysis. Our top result was rs16969968 (P = 1.7 × 10(-14)) in CHRNA5, a locus previously associated with COPD susceptibility and nicotine dependence. Additional top results were found in AGER, MMP3, and SERPINA1. A nonsynonymous variant, rs181206, in IL27 (P = 4.7 × 10(-6)) was just below the level of exome-wide significance but attained exome-wide significance (P = 5.7 × 10(-8)) when combined with results from other cohorts. Gene expression datasets revealed an association of rs181206 and the surrounding locus with expression of multiple genes; several were differentially expressed in COPD lung tissue, including TUFM. CONCLUSIONS In an exome array analysis of COPD, we identified nonsynonymous variants at previously described loci and a novel exome-wide significant variant in IL27. This variant is at a locus previously described in genome-wide associations with diabetes, inflammatory bowel disease, and obesity and appears to affect genes potentially related to COPD pathogenesis.
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Affiliation(s)
- Brian D. Hobbs
- Channing Division of Network Medicine
- Division of Pulmonary and Critical Care Medicine
| | | | - Han Chen
- Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | | | - Megan Hardin
- Channing Division of Network Medicine
- Division of Pulmonary and Critical Care Medicine
| | | | | | - Pawel Sliwinski
- National Tuberculosis and Lung Disease Research Institute, Warsaw, Poland
| | - Jae-Joon Yim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Woo Jin Kim
- Kangwon National University, Chuncheon, South Korea
| | - Deog Kyeom Kim
- Seoul National University Boramae Medical Center, Seoul, South Korea
| | - Peter J. Castaldi
- Channing Division of Network Medicine
- Division of General Medicine and Primary Care, and
| | - Craig P. Hersh
- Channing Division of Network Medicine
- Division of Pulmonary and Critical Care Medicine
| | | | | | - Victor M. Pinto-Plata
- Department of Critical Care Medicine and Pulmonary Disease, Baystate Medical Center, Springfield, Massachusetts
| | | | - Nathaniel Marchetti
- Department of Thoracic Medicine and Surgery, Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Raphael Bueno
- Division of Thoracic Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Alvar Agustí
- Thorax Institute, Hospital Clinic, IDIBAPS, University of Barcelona, CIBERES, Barcelona, Spain
| | | | | | | | - Claudio F. Donner
- Mondo Medico di I.F.I.M. srl, Multidisciplinary and Rehabilitation Outpatient Clinic, Borgomanero (NO), Italy
| | | | | | - Jorgen Vestbo
- University of Manchester, Manchester, United Kingdom
| | - Peter D. Paré
- University of British Columbia, Vancouver, British Columbia, Canada
| | - Robert D. Levy
- University of British Columbia, Vancouver, British Columbia, Canada
| | - Stephen I. Rennard
- Pulmonary and Critical Care Medicine, University of Nebraska Medical Center, Omaha, Nebraska
- Clinical Discovery Unit, AstraZeneca, Cambridge, United Kingdom; and
| | | | - Nan M. Laird
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Xihong Lin
- Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Terri H. Beaty
- Department of Epidemiology, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, Maryland
| | - Edwin K. Silverman
- Channing Division of Network Medicine
- Division of Pulmonary and Critical Care Medicine
| | - Michael H. Cho
- Channing Division of Network Medicine
- Division of Pulmonary and Critical Care Medicine
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28
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Wong FN, Chua KH, Kuppusamy UR, Wong CM, Lim SK, Tan JAMA. Association of the receptor for advanced glycation end-products (RAGE) gene polymorphisms in Malaysian patients with chronic kidney disease. PeerJ 2016; 4:e1908. [PMID: 27114872 PMCID: PMC4841215 DOI: 10.7717/peerj.1908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 03/17/2016] [Indexed: 11/20/2022] Open
Abstract
Background: Chronic kidney disease (CKD) is a condition associated with progressive loss of kidney function and kidney damage. The two common causes of CKD are diabetes mellitus and hypertension. Other causes of CKD also include polycystic kidney disease, obstructive uropathy and primary glomerulonephritis. The receptor for advanced glycation end-products (RAGE) is a multi-ligand cell surface receptor of the immunoglobulin superfamily and it has been associated with kidney disease in both non-diabetic and diabetic patients. Presently, data on the association between RAGE polymorphisms and CKD in the Malaysian population is limited, while numerous studies have reported associations of RAGE polymorphisms with diabetic complications in other populations. The present study aims to explore the possibility of using RAGE polymorphisms as candidate markers of CKD in Malaysian population by using association analysis. Methods: A total of 102 non-diabetic CKD patients, 204 diabetic CKD patients and 345 healthy controls were enrolled in the study. DNA isolated from blood samples were subjected to genotyping of RAGE G82S, −374T/A, −429T/C, 1704G/T and 2184A/G polymorphisms using real-time polymerase chain reaction (PCR). The 63-bp deletion, a polymorphism in the RAGE gene promoter, was genotyped using conventional PCR method and visualized using agarose gel electrophoresis. The collective frequencies of genotypes with at least one copy of the minor alleles of the four polymorphisms were compared between the non-diabetic CKD patients, diabetic CKD patients and healthy controls. Results: After adjustment of age, gender and ethnic groups in binary logistic regression analysis, the G82S CT + TT genotypes were associated with non-diabetic CKD patients when compared with diabetic CKD patients (p = 0.015, OR = 1.896, 95% CI = 1.132–3.176). After further adjustment of CKD comorbidities, the G82S CT + TT genotypes were still associated with non-diabetic CKD patients when compared with diabetic CKD patients (p = 0.011, OR = 2.024, 95% CI = 1.178–3.476). However, it cannot be suggested that G82S polymorphism was associated with CKD in non-diabetic patients in this study. This is because there were no significant differences in the frequencies of G82S CT + TT genotypes between non-diabetic CKD patients and healthy controls. In addition, the RAGE −374T/A, −429T/C, 1704G/T, 2184A/G and 63-bp deletion polymorphisms were also not associated with non-diabetic CKD patients and diabetic CKD patients in this study. Conclusion: The G82S, −374T/A, −429T/C, 1704G/T, 2184A/G and 63-bp deletion polymorphisms examined in this study were not associated with chronic kidney disease in the Malaysian patients.
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Affiliation(s)
- Foo Nian Wong
- Department of Biomedical Science, Faculty of Medicine, University of Malaya , Kuala Lumpur , Malaysia
| | - Kek Heng Chua
- Department of Biomedical Science, Faculty of Medicine, University of Malaya , Kuala Lumpur , Malaysia
| | - Umah Rani Kuppusamy
- Department of Biomedical Science, Faculty of Medicine, University of Malaya , Kuala Lumpur , Malaysia
| | - Chew Ming Wong
- Department of Medicine, Faculty of Medicine, University of Malaya , Kuala Lumpur , Malaysia
| | - Soo Kun Lim
- Department of Medicine, Faculty of Medicine, University of Malaya , Kuala Lumpur , Malaysia
| | - Jin Ai Mary Anne Tan
- Department of Biomedical Science, Faculty of Medicine, University of Malaya , Kuala Lumpur , Malaysia
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29
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Al-Qattan KK, Mansour MH, Thomson M, Ali M. Garlic decreases liver and kidney receptor for advanced glycation end products expression in experimental diabetes. ACTA ACUST UNITED AC 2016; 23:135-45. [PMID: 26968224 DOI: 10.1016/j.pathophys.2016.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 02/18/2016] [Accepted: 02/29/2016] [Indexed: 12/19/2022]
Abstract
The up-regulation of the receptor for advanced glycation end products (RAGE) has been implicated as a major mediator in the development and progression of diabetic nephropathy and hepatic fibrogenesis. The present study was designed to investigate the potential of garlic (Allium sativum L.) to modulate the level of expression of RAGE in renal and hepatic tissues of diabetic rats. Three groups of rats were studied after 8 weeks following diabetes induction: normal, streptozotocin-induced diabetic (control diabetic), and garlic-treated diabetic rats. A polyclonal antibody of proven specificity to RAGE indicated in immunohistochemical assays that RAGE labeling was significantly increased in renal and hepatic tissues of control diabetic rats compared to the normal group. The increased RAGE labeling involved mesangial cells in glomeruli exhibiting signs of mesangial expansion, mesangial nodule formation and glomerulosclerosis. In the liver, a significant up-regulation of RAGE was observed in hepatocytes and bile ducts and vessels in portal tracts. In 2-dimensional Western blots, RAGE expression in both tissues was dominated by heterogeneous charge variants, represented by 46-50kDa isoforms with more basic pIs compared to their counterparts in normal rats. Compared to control diabetic rats, RAGE labeling in the garlic-treated diabetic group was significantly reduced throughout renal and hepatic regions and was marked by the expression of 43-50kDa acidic charge variants comparable to those observed in normal rats. The capacity of garlic to modulate diabetes-induced up-regulation of selective RAGE polymorphic variants may be implicated in attenuating the detrimental consequences of excessive RAGE signaling manifested by diabetes-associated disorders.
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Affiliation(s)
- Khaled K Al-Qattan
- Department of Biological Sciences, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait.
| | - Mohamed H Mansour
- Department of Biological Sciences, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
| | - Martha Thomson
- Department of Biological Sciences, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
| | - Muslim Ali
- Department of Biological Sciences, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
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Yonchuk JG, Silverman EK, Bowler RP, Agustí A, Lomas DA, Miller BE, Tal-Singer R, Mayer RJ. Circulating soluble receptor for advanced glycation end products (sRAGE) as a biomarker of emphysema and the RAGE axis in the lung. Am J Respir Crit Care Med 2015; 192:785-92. [PMID: 26132989 DOI: 10.1164/rccm.201501-0137pp] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a complex and heterogeneous disease that has been traditionally characterized by incompletely reversible airflow limitation. Yet, the latter is poorly correlated with many other clinically relevant characteristics of the disease. Thus, the identification of biomarkers to more accurately assess this heterogeneity and disease severity may facilitate the discovery and development of new treatments and better management of patients with COPD. One molecule that has attracted attention as a potentially useful biomarker specifically for the emphysema subpopulation is the soluble receptor for advanced glycation end products (sRAGE). As the soluble isoform of a key proinflammatory signaling receptor, sRAGE acts as a "decoy" for RAGE ligands and prevents their interaction with the receptor. Multiple reports have now linked sRAGE to COPD, and more specifically to emphysema, and evidence is accumulating that this link is likely mechanistic in nature. Here we review the current state of knowledge about sRAGE biology, the mechanistic links to COPD, and the evidence for using it as a biomarker for emphysema. We also discuss sRAGE as a potential target for therapeutic intervention in COPD.
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Affiliation(s)
- John G Yonchuk
- 1 GlaxoSmithKline Research and Development, King of Prussia, Pennsylvania
| | - Edwin K Silverman
- 2 Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | | | - Alvar Agustí
- 4 Thorax Institute, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona and Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, Barcelona, Spain; and
| | - David A Lomas
- 5 Wolfson Institute for Biochemical Research, Division of Medicine, University College London, London, United Kingdom
| | - Bruce E Miller
- 1 GlaxoSmithKline Research and Development, King of Prussia, Pennsylvania
| | - Ruth Tal-Singer
- 1 GlaxoSmithKline Research and Development, King of Prussia, Pennsylvania
| | - Ruth J Mayer
- 1 GlaxoSmithKline Research and Development, King of Prussia, Pennsylvania
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Shanthi KB, Krishnan S, Rani P. A systematic review and meta-analysis of plasma amyloid 1-42 and tau as biomarkers for Alzheimer's disease. SAGE Open Med 2015; 3:2050312115598250. [PMID: 26770797 PMCID: PMC4679337 DOI: 10.1177/2050312115598250] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 06/27/2015] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE Amyloid 1-42 (Aβ42) and tau in cerebrospinal fluid are currently used as markers for diagnosis of Alzheimer's disease. Conflicting reports exist regarding their plasma levels in Alzheimer's disease patients. A meta-analysis was performed to statistically validate the use of plasma Aβ42 and tau as biomarkers for Alzheimer's disease. METHODS Different databases were searched using the search key: (amyloid OR amyloid1-42 OR Aβ42) AND (tau OR total tau) AND plasma AND (alzheimer's OR alzheimer's disease), and for databases not accepting boolean search, records were retrieved using the search key: plasma + amyloid + tau + alzheimer's. A total of 1880 articles for Aβ42 and 1508 articles for tau were shortlisted. The abstracts were screened, and 69 articles reporting plasma Aβ42 levels and 6 articles reporting plasma tau were identified. After exclusion, 25 studies reporting plasma Aβ42 and 6 studies reporting total tau were analysed in Review Manager version 5.2 using weighted mean difference method, and the bias between studies was assessed using the funnel plot. RESULTS Plasma Aβ42 and tau did not vary significantly between Alzheimer's disease patients and controls. The funnel plot showed that there was no bias between studies for Aβ42, while possible bias existed for tau due to availability of limited studies. CONCLUSION This analysis pinpoints that plasma Aβ42 and tau could not serve as reliable markers independently for diagnosis of Alzheimer's disease and a cohort study with age, sex and apolipoprotein E correction is warranted for their possible use as Alzheimer's disease markers.
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Affiliation(s)
| | - Sreeram Krishnan
- Department of Biotechnology, PSG College of Technology, Coimbatore, India
| | - P Rani
- Department of Biotechnology, PSG College of Technology, Coimbatore, India
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32
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Wagner NB, Weide B, Reith M, Tarnanidis K, Kehrel C, Lichtenberger R, Pflugfelder A, Herpel E, Eubel J, Ikenberg K, Busch C, Holland-Letz T, Naeher H, Garbe C, Umansky V, Enk A, Utikal J, Gebhardt C. Diminished levels of the soluble form of RAGE are related to poor survival in malignant melanoma. Int J Cancer 2015; 137:2607-17. [PMID: 26018980 DOI: 10.1002/ijc.29619] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 05/07/2015] [Accepted: 05/11/2015] [Indexed: 01/11/2023]
Abstract
RAGE is a central driver of tumorigenesis by sustaining an inflammatory tumor microenvironment. This study links the soluble forms of RAGE (sRAGE and esRAGE) with clinical outcome of melanoma patients. Moreover, tissue expression of RAGE was analyzed using immunohistochemistry on two independent tissue microarrays (TMA) containing 35 or 257 primary melanomas, and 41 or 22 benign nevi, respectively. Serum concentrations of sRAGE and esRAGE were measured in 229 Stage III-IV patients using ELISA and plasma concentrations of sRAGE were analyzed in an independent second cohort with 173 samples of Stage I-IV patients. In this cohort, three well-described SNPs in the RAGE gene were analyzed. RAGE protein expression was highly upregulated in primary melanomas compared to benign nevi in the two TMA (p < 0.001 and p = 0.005) as well as in sun-exposed melanomas (p = 0.046). sRAGE and esRAGE were identified as prognostic markers for survival as diminished sRAGE (p = 0.034) and esRAGE (p = 0.012) serum levels correlated with poor overall survival (OS). Multivariate Cox regression analysis showed that diminished serum sRAGE was independently associated with poor survival (p = 0.009). Moreover, diminished sRAGE was strongly associated with impaired OS in the second cohort (p < 0.001). Multivariate Cox regression analysis including the investigated SNPs revealed an independent correlation of the two interacting promoter SNPs with impaired OS. In conclusion, the soluble forms of RAGE and variants in its genetic locus are prognostic markers for survival in melanoma patients with high risk for progression.
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Affiliation(s)
- Nikolaus B Wagner
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | - Benjamin Weide
- Department of Dermatology, University Hospital Tuebingen, Tuebingen, Germany
| | - Maike Reith
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | - Kathrin Tarnanidis
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | - Coretta Kehrel
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | - Ramtin Lichtenberger
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | - Annette Pflugfelder
- Department of Dermatology, University Hospital Tuebingen, Tuebingen, Germany
| | - Esther Herpel
- NCT Tissue Bank, National Center of Tumor Diseases (NCT), Heidelberg, Germany.,Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Jana Eubel
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Kristian Ikenberg
- Institute of Surgical Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Christian Busch
- Department of Dermatology, University Hospital Tuebingen, Tuebingen, Germany
| | - Tim Holland-Letz
- Division of Biostatistics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Helmut Naeher
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Claus Garbe
- Department of Dermatology, University Hospital Tuebingen, Tuebingen, Germany
| | - Viktor Umansky
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | - Alexander Enk
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Jochen Utikal
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | - Christoffer Gebhardt
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
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Degani G, Colzani M, Tettamanzi A, Sorrentino L, Aliverti A, Fritz G, Aldini G, Popolo L. An improved expression system for the VC1 ligand binding domain of the receptor for advanced glycation end products in Pichia pastoris. Protein Expr Purif 2015; 114:48-57. [PMID: 26118699 DOI: 10.1016/j.pep.2015.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 06/19/2015] [Accepted: 06/20/2015] [Indexed: 11/19/2022]
Abstract
The receptor for the advanced glycation end products (RAGE) is a type I transmembrane glycoprotein belonging to the immunoglobulin superfamily and binds a variety of unrelated ligands sharing a negative charge. Most ligands bind to the extracellular V or VC1 domains of the receptor. In this work, V and VC1 of human RAGE were produced in the methylotrophic yeast Pichia pastoris and directed to the secretory pathway. Fusions to a removable C-terminal His-tag evidenced proteolytic processing of the tag by extracellular proteases and also intracellular degradation of the N-terminal portion of V-His. Expression of untagged forms was attempted. While the V domain was retained intracellularly, VC1 was secreted into the medium and was functionally active in binding AGEs. The glycosylation state of VC1 was analyzed by mass spectrometry and peptide-N-glycosidase F digestion. Like RAGE isolated from mammalian sources, the degree of occupancy of the N-glycosylation sites was full at Asn25 and partial at Asn81 which was also subjected to non-enzymatic deamidation. A simple procedure for the purification to homogeneity of VC1 from the medium was developed. The folded state of the purified protein was assessed by thermal shift assays. Recombinant VC1 from P. pastoris showed a remarkably high thermal stability as compared to the protein expressed in bacteria. Our in vivo approach indicates that the V and C1 domains constitute a single folding unit. The stability and solubility of the yeast-secreted VC1 may be beneficial for future in vitro studies aimed to identify new ligands or inhibitors of RAGE.
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Affiliation(s)
- Genny Degani
- Department of Biosciences, Via Celoria 26, University of Milan, 20133 Milano, Italy
| | - Mara Colzani
- Department of Pharmaceutical Sciences, Via Mangiagalli 25, University of Milan, 20133 Milano, Italy
| | - Alberto Tettamanzi
- Department of Biosciences, Via Celoria 26, University of Milan, 20133 Milano, Italy
| | - Luca Sorrentino
- Department of Biosciences, Via Celoria 26, University of Milan, 20133 Milano, Italy
| | - Alessandro Aliverti
- Department of Biosciences, Via Celoria 26, University of Milan, 20133 Milano, Italy
| | - Guenter Fritz
- Institute for Neuropathology, University of Freiburg, Breisacher Str. 64, 79106 Freiburg, Germany
| | - Giancarlo Aldini
- Department of Pharmaceutical Sciences, Via Mangiagalli 25, University of Milan, 20133 Milano, Italy
| | - Laura Popolo
- Department of Biosciences, Via Celoria 26, University of Milan, 20133 Milano, Italy.
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The receptor for advanced glycation end products (RAGE) contributes to the progression of emphysema in mice. PLoS One 2015; 10:e0118979. [PMID: 25781626 PMCID: PMC4364508 DOI: 10.1371/journal.pone.0118979] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 01/27/2015] [Indexed: 01/11/2023] Open
Abstract
Several recent clinical studies have implied a role for the receptor for advanced glycation end products (RAGE) and its variants in chronic obstructive pulmonary disease (COPD). In this study we have defined a role for RAGE in the pathogenesis of emphysema in mice. RAGE deficient mice (RAGE-/-) exposed to chronic cigarette smoke were significantly protected from smoke induced emphysema as determined by airspace enlargement and had no significant reduction in lung tissue elastance when compared to their air exposed controls contrary to their wild type littermates. The progression of emphysema has been largely attributed to an increased inflammatory cell-mediated elastolysis. Acute cigarette smoke exposure in RAGE-/- mice revealed an impaired early recruitment of neutrophils, approximately a 6-fold decrease compared to wild type mice. Hence, impaired neutrophil recruitment with continued cigarette smoke exposure reduces elastolysis and consequent emphysema.
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35
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Duan Z, Chen G, Chen L, Stolzenberg-Solomon R, Weinstein SJ, Mannisto S, White DL, Albanes D, Jiao L. Determinants of concentrations of N(ε)-carboxymethyl-lysine and soluble receptor for advanced glycation end products and their associations with risk of pancreatic cancer. INTERNATIONAL JOURNAL OF MOLECULAR EPIDEMIOLOGY AND GENETICS 2014; 5:152-163. [PMID: 25379135 PMCID: PMC4214263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 09/16/2014] [Indexed: 06/04/2023]
Abstract
The soluble receptor for advanced glycation end-products (sRAGE) is shown to mitigate pro-inflammatory effects triggered by ligation of RAGE with N(ε)-carboxymethyl-lysine (CML)-AGE or other ligands. We examined the associations among host, lifestyle, and genetic determinants of CML-AGE or sRAGE and risk of pancreatic cancer in the prospective ATBC Study. We obtained baseline exposure information, data on serological and genetic biomarkers from 141 patients with pancreatic cancer and 141 subcohort controls. Stepwise linear and logistic regression models were used for data analysis. Multiple linear regression analyses showed that CML-AGE concentrations were independently inversely correlated with the minor allele of rs640742 of DDOST, physical activity, alcohol consumption, diastolic blood pressure (BP), and positively correlated with heart rate, serum sRAGE and HDL concentrations (P < 0.05). sRAGE concentrations were independently inversely correlated with the 82Ser allele of rs2070600 of RAGE, age, body mass index, heart rate, and serum HDL; and positively correlated with serum CML-AGE, sucrose consumption, and diastolic BP (P < 0.05). The minor allele of rs1035786 of RAGE was associated with reduced risk of pancreatic cancer (any T compared with CC: multivariate OR = 0.61, 95% CI: 0.38-0.98). We identified host metabolic profile, lifestyle and genetic factors that explained approximately 50% of variability of CML-AGE or sRAGE in Finnish men smokers. The association between RAGE SNPs and pancreatic cancer risk warrants further investigation.
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Affiliation(s)
- Zhigang Duan
- Department of Medicine, Baylor College of MedicineHouston, TX, USA
- Section of Health Services Research (IQuESt), Michael. E DeBakey VA Medical CenterHouston, TX, USA
| | - Guoqing Chen
- Division of Health Services Research, University of Kansas Medical CenterKansas City, KS, USA
| | - Liang Chen
- Department of Medicine, Baylor College of MedicineHouston, TX, USA
- Section of Health Services Research (IQuESt), Michael. E DeBakey VA Medical CenterHouston, TX, USA
| | - Rachael Stolzenberg-Solomon
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of HealthBethesda, MD, USA
| | - Stephanie J Weinstein
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of HealthBethesda, MD, USA
| | - Satu Mannisto
- Department of Chronic Disease Prevention, National Institute for Health and WelfareHelsinki, Finland
| | - Donna L White
- Department of Medicine, Baylor College of MedicineHouston, TX, USA
- Section of Health Services Research (IQuESt), Michael. E DeBakey VA Medical CenterHouston, TX, USA
- Texas Medical Center Digestive Disease CenterHouston, TX, USA
- Dan L. Duncan Cancer Center at Baylor College of MedicineHouston, TX, USA
- Center for Translational Research on Inflammatory Diseases (CTRID), Michael E. DeBakey Veterans Affairs Medical CenterHouston, TX, USA
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of HealthBethesda, MD, USA
| | - Li Jiao
- Department of Medicine, Baylor College of MedicineHouston, TX, USA
- Section of Health Services Research (IQuESt), Michael. E DeBakey VA Medical CenterHouston, TX, USA
- Texas Medical Center Digestive Disease CenterHouston, TX, USA
- Dan L. Duncan Cancer Center at Baylor College of MedicineHouston, TX, USA
- Center for Translational Research on Inflammatory Diseases (CTRID), Michael E. DeBakey Veterans Affairs Medical CenterHouston, TX, USA
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Tae HJ, Kim JM, Park S, Tomiya N, Li G, Wei W, Petrashevskaya N, Ahmet I, Pang J, Cruschwitz S, Riebe RA, Zhang Y, Morrell CH, Browe D, Lee YC, Xiao RP, Talan MI, Lakatta EG, Lin L. The N-glycoform of sRAGE is the key determinant for its therapeutic efficacy to attenuate injury-elicited arterial inflammation and neointimal growth. J Mol Med (Berl) 2013; 91:1369-81. [PMID: 24132651 PMCID: PMC3846495 DOI: 10.1007/s00109-013-1091-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 09/30/2013] [Accepted: 10/02/2013] [Indexed: 11/29/2022]
Abstract
UNLABELLED Signaling of the receptor for advanced glycation end products (RAGE) has been implicated in the development of injury-elicited vascular complications. Soluble RAGE (sRAGE) acts as a decoy of RAGE and has been used to treat pathological vascular conditions in animal models. However, previous studies used a high dose of sRAGE produced in insect Sf9 cells (sRAGE(Sf9))and multiple injections to achieve the therapeutic outcome. Here, we explore whether modulation of sRAGE N-glycoform impacts its bioactivity and augments its therapeutic efficacy. We first profiled carbohydrate components of sRAGE produced in Chinese hamster Ovary cells (sRAGE(CHO)) to show that a majority of its N-glycans belong to sialylated complex types that are not shared by sRAGE(Sf9). In cell-based NF-κB activation and vascular smooth muscle cell (VSMC) migration assays, sRAGE(CHO) exhibited a significantly higher bioactivity relative to sRAGE(Sf9) to inhibit RAGE alarmin ligand-induced NF-κB activation and VSMC migration. We next studied whether this N-glycoform-associated bioactivity of sRAGE(CHO) is translated to higher in vivo therapeutic efficacy in a rat carotid artery balloon injury model. Consistent with the observed higher bioactivity in cell assays, sRAGE(CHO) significantly reduced injury-induced neointimal growth and the expression of inflammatory markers in injured vasculature. Specifically, a single dose of 3 ng/g of sRAGE(CHO) reduced neointimal hyperplasia by over 70%, whereas the same dose of sRAGE(Sf9) showed no effect. The administered sRAGE(CHO) is rapidly and specifically recruited to the injured arterial locus, suggesting that early intervention of arterial injury with sRAGE(CHO) may offset an inflammatory circuit and reduce the ensuing tissue remodeling. Our findings showed that the N-glycoform of sRAGE is the key determinant underlying its bioactivity and thus is an important glycobioengineering target to develop a highly potent therapeutic sRAGE for future clinical applications. KEY MESSAGE The specific N-glycoform modification is the key underlying sRAGE bioactivity Markedly reduced sRAGE dose to attenuate neointimal hyperplasia and inflammation Provide a molecular target for glycobioengineering of sRAGE as a therapeutic protein Blocking RAGE alarmin ligands during acute injury phase offsets neointimal growth.
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Affiliation(s)
- Hyun-Jin Tae
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
- Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University, Chunchon, Korea
| | - Ji Min Kim
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - Sungha Park
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
- Division of Cardiology, Cardiovascular Center, Yonsei University College of Medicine, Seoul, Korea
| | - Noboru Tomiya
- Department of Biology, Johns Hopkins University, Baltimore, Maryland, United States
| | - Geng Li
- Institute of Molecular Medicine, Peking University, Beijing, the People’s Republic of China
| | - Wen Wei
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - Natalia Petrashevskaya
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - Ismayil Ahmet
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - John Pang
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - Stefanie Cruschwitz
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - Rebecca A. Riebe
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - Yinghua Zhang
- Department of Physiology, University of Maryland School of Medicine, Baltimore, Maryland, United States
| | - Christopher H. Morrell
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
- Department of Mathematics and Statistics, Loyola University, Baltimore, Maryland, the United States
| | - David Browe
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - Yuan Chuan Lee
- Department of Biology, Johns Hopkins University, Baltimore, Maryland, United States
| | - Rui-ping Xiao
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
- Institute of Molecular Medicine, Peking University, Beijing, the People’s Republic of China
| | - Mark I. Talan
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - Edward G. Lakatta
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
| | - Li Lin
- Laboratory of Cardiovascular Science, National Institute on Aging, Baltimore, Maryland, United States
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Gao J, Teng J, Liu H, Han X, Chen B, Xie A. Association of RAGE gene polymorphisms with sporadic Parkinson's disease in Chinese Han population. Neurosci Lett 2013; 559:158-62. [PMID: 24304868 DOI: 10.1016/j.neulet.2013.11.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Revised: 11/12/2013] [Accepted: 11/20/2013] [Indexed: 11/28/2022]
Abstract
Previous studies have corroborated receptor for advanced glycation end-products (RAGE) ablation had a protective effect on nigral dopaminergic neurons in the MPTP model of Parkinson's disease (PD). Genetic variation of RAGE gene may be associated with the development of onset of sporadic PD. The present study aimed to explore the possible association of RAGE gene polymorphisms namely -374T/A,-429T/C, and G82S with PD. A total of 285 PD patients and 285 healthy-matched individuals in Chinese Han population were enrolled. Genotype analyses were performed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Only the -429T/C polymorphism denoted a significant difference between PD patients and controls (P=0.015) of the three examined single nucleotide polymorphisms (SNPs). Our data also revealed that -429C allele carriers seem to have a decreased risk of PD (OR=0.617, P=0.007). Moreover, there were significant differences in genotype distribution in female PD group and its healthy-matched control subgroup (P=0.014), as well as between late-onset PD (LOPD) and the controls subgroup (P=0.016). However, for -374T/A and 82GS polymorphisms, there was no significant difference in the genotype and allele frequencies between PD patients and the controls, as well as gender- and age-related differences. Our present findings indicate that the RAGE -429T/C polymorphism may be associated with the susceptibility of PD and the CC genotype of -429T/C may be a protective factor for PD in Chinese Han population.
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Affiliation(s)
- Jing Gao
- Department of Neurology, Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
| | - Jijun Teng
- Department of Neurology, Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
| | - Hongxin Liu
- Department of Neurology, Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
| | - Xun Han
- Department of Neurology, Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
| | - Biao Chen
- Department of Neurology, Beijing Xuanwu Hospital, Chinese Human Genetic Center, Beijing, China
| | - Anmu Xie
- Department of Neurology, Affiliated Hospital of Medical College, Qingdao University, Qingdao, China.
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38
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Gly82Ser polymorphism of the receptor for advanced glycation end-product (RAGE) potential high risk in patients with colorectal cancer. Tumour Biol 2013; 35:3171-5. [DOI: 10.1007/s13277-013-1414-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Accepted: 11/11/2013] [Indexed: 11/25/2022] Open
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39
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Association of RAGE gene polymorphism with circulating AGEs level and paraoxonase activity in relation to macro-vascular complications in Indian type 2 diabetes mellitus patients. Gene 2013; 526:325-30. [DOI: 10.1016/j.gene.2013.05.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 05/01/2013] [Accepted: 05/06/2013] [Indexed: 10/26/2022]
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40
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Liu YF, Swart M, Ke Y, Ly K, McDonald FJ. Functional interaction of COMMD3 and COMMD9 with the epithelial sodium channel. Am J Physiol Renal Physiol 2013; 305:F80-9. [PMID: 23637203 DOI: 10.1152/ajprenal.00158.2013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The epithelial sodium channel (ENaC) plays an important role in controlling Na⁺ homeostasis, extracellular fluid volume, and blood pressure. Copper metabolism Murr1 domain-containing protein 1 (COMMD1) interacts with ENaC and downregulates ENaC. COMMD1 belongs to the COMMD family consisting of COMMD1-10, and all COMMD family members share a C-terminal COMM domain. Here, we report that COMMD2-10 also interacts with ENaC, and COMMD3 and COMMD9 were selected for further study. Amiloride-sensitive current in mammalian epithelia expressing ENaC was significantly reduced by COMMD3 or COMMD9, and ENaC expression at the cell surface was significantly decreased in the presence of COMMD3 or COMMD9. COMMD3 and COMMD9 retained their ability to reduce current when COMMD1 was knocked down. COMMD3 and COMMD9 were widely expressed in kidney and were colocalized with ENaC in renal collecting duct cells. These data suggest that COMMD3 and COMMD9 may be endogenous regulators of ENaC to regulate Na⁺ transport through altering ENaC cell surface expression.
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Affiliation(s)
- Yong Feng Liu
- Department of Physiology, University of Otago, Dunedin, New Zealand
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Zhao N, Enns CA. N-linked glycosylation is required for transferrin-induced stabilization of transferrin receptor 2, but not for transferrin binding or trafficking to the cell surface. Biochemistry 2013; 52:3310-9. [PMID: 23556518 PMCID: PMC3656769 DOI: 10.1021/bi4000063] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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Transferrin receptor 2 (TfR2) is
a member of the transferrin receptor-like
family of proteins. Mutations in TfR2 can lead to a rare form of the
iron overload disease, hereditary hemochromatosis. TfR2 is proposed
to sense body iron levels and increase the level of expression of
the iron regulatory hormone, hepcidin. Human TfR2 (hTfR2) contains
four potential Asn-linked (N-linked) glycosylation sites on its ectodomain.
The importance of glycosylation in TfR2 function has not been elucidated.
In this study, by employing site-directed mutagenesis to remove glycosylation
sites of hTfR2 individually or in combination, we found that hTfR2
was glycosylated at Asn 240, 339, and 754, while the consensus sequence
for N-linked glycosylation at Asn 540 was not utilized. Cell surface
protein biotinylation and biotin-labeled Tf indicated that in the
absence of N-linked oligosaccharides, hTfR2 still moved to the plasma
membrane and bound its ligand, holo-Tf. However, without N-linked
glycosylation, hTfR2 did not form the intersubunit disulfide bonds
as efficiently as the wild type (WT). Moreover, the unglycosylated
form of hTfR2 could not be stabilized by holo-Tf. We further provide
evidence that the unglycosylated hTfR2 behaved in manner different
from that of the WT in response to holo-Tf treatment. Thus, the putative
iron-sensing function of TfR2 could not be achieved in the absence
of N-linked oligosaccharides. On the basis of our analyses, we conclude
that unlike TfR1, N-linked glycosylation is dispensable for the cell
surface expression and holo-Tf binding, but it is required for efficient
intersubunit disulfide bond formation and holo-Tf-induced stabilization
of TfR2.
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Affiliation(s)
- Ningning Zhao
- Department of Cell and Developmental Biology, Oregon Health & Science University , Portland, Oregon 97239, United States
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42
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Abstract
RAGE is a key molecule in the onset and sustainment of the inflammatory response. New studies indicate that RAGE might represent a new link between the innate and adaptive immune system. RAGE belongs to the superfamily of Ig cell-surface receptors and is expressed on all types of leukocytes promoting activation, migration, or maturation of the different cells. RAGE expression is prominent on the activated endothelium, where it mediates leukocyte adhesion and transmigration. Moreover, proinflammatory molecules released from the inflamed or injured vascular system induce migration and proliferation of SMCs. RAGE binds a large number of different ligands and is therefore considered as a PRR, recognizing a structural motif rather than a specific ligand. In this review, we summarize the current knowledge about the signaling pathways activated in the different cell types and discuss a potential activation mechanism of RAGE, as well as putative options for therapeutic intervention.
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Affiliation(s)
- Katrin Kierdorf
- Department of Neuropathology, University of Freiburg, Freiburg, Germany
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43
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Receptor for advanced glycation end products (RAGE) and glyoxalase I gene polymorphisms in pathological pregnancy. Clin Biochem 2012; 45:1409-14. [DOI: 10.1016/j.clinbiochem.2012.06.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Revised: 06/22/2012] [Accepted: 06/24/2012] [Indexed: 12/27/2022]
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Sukkar MB, Ullah MA, Gan WJ, Wark PAB, Chung KF, Hughes JM, Armour CL, Phipps S. RAGE: a new frontier in chronic airways disease. Br J Pharmacol 2012; 167:1161-76. [PMID: 22506507 PMCID: PMC3504985 DOI: 10.1111/j.1476-5381.2012.01984.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 02/13/2012] [Accepted: 02/22/2012] [Indexed: 12/21/2022] Open
Abstract
Asthma and chronic obstructive pulmonary disease (COPD) are heterogeneous inflammatory disorders of the respiratory tract characterized by airflow obstruction. It is now clear that the environmental factors that drive airway pathology in asthma and COPD, including allergens, viruses, ozone and cigarette smoke, activate innate immune receptors known as pattern-recognition receptors, either directly or indirectly by causing the release of endogenous ligands. Thus, there is now intense research activity focused around understanding the mechanisms by which pattern-recognition receptors sustain the airway inflammatory response, and how these mechanisms might be targeted therapeutically. One pattern-recognition receptor that has recently come to attention in chronic airways disease is the receptor for advanced glycation end products (RAGE). RAGE is a member of the immunoglobulin superfamily of cell surface receptors that recognizes pathogen- and host-derived endogenous ligands to initiate the immune response to tissue injury, infection and inflammation. Although the role of RAGE in lung physiology and pathophysiology is not well understood, recent genome-wide association studies have linked RAGE gene polymorphisms with airflow obstruction. In addition, accumulating data from animal and clinical investigations reveal increased expression of RAGE and its ligands, together with reduced expression of soluble RAGE, an endogenous inhibitor of RAGE signalling, in chronic airways disease. In this review, we discuss recent studies of the ligand-RAGE axis in asthma and COPD, highlight important areas for future research and discuss how this axis might potentially be harnessed for therapeutic benefit in these conditions.
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Affiliation(s)
- Maria B Sukkar
- School of Pharmacy, The University of Technology SydneyNSW, Australia
- Woolcock Institute of Medical Research, Sydney Medical School, The University of SydneyNSW, Australia
| | - Md Ashik Ullah
- Woolcock Institute of Medical Research, Sydney Medical School, The University of SydneyNSW, Australia
- School of Biomedical Sciences and Australian Infectious Diseases Research Centre, The University of QueenslandQld, Australia
| | - Wan Jun Gan
- School of Biomedical Sciences and Australian Infectious Diseases Research Centre, The University of QueenslandQld, Australia
| | - Peter AB Wark
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of NewcastleNSW, Australia
- Department of Respiratory and Sleep Medicine, John Hunter HospitalNSW, Australia
| | - Kian Fan Chung
- Airways Disease Section, National Heart and Lung Institute, Imperial College LondonLondon, UK
| | | | - Carol L Armour
- Woolcock Institute of Medical Research, Sydney Medical School, The University of SydneyNSW, Australia
| | - Simon Phipps
- School of Biomedical Sciences and Australian Infectious Diseases Research Centre, The University of QueenslandQld, Australia
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45
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Shaikh SB, Uy B, Perera A, Nicholson LF. AGEs–RAGE mediated up-regulation of connexin43 in activated human microglial CHME-5 cells. Neurochem Int 2012; 60:640-51. [DOI: 10.1016/j.neuint.2012.02.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 12/14/2011] [Accepted: 02/21/2012] [Indexed: 10/28/2022]
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46
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Cunha C, Giovannini G, Pierini A, Bell AS, Sorci G, Riuzzi F, Donato R, Rodrigues F, Velardi A, Aversa F, Romani L, Carvalho A. Genetically-determined hyperfunction of the S100B/RAGE axis is a risk factor for aspergillosis in stem cell transplant recipients. PLoS One 2011; 6:e27962. [PMID: 22114731 PMCID: PMC3219695 DOI: 10.1371/journal.pone.0027962] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 10/28/2011] [Indexed: 12/22/2022] Open
Abstract
Invasive aspergillosis (IA) is a major threat to the successful outcome of hematopoietic stem cell transplantation (HSCT), although individual risk varies considerably. Recent evidence has established a pivotal role for a danger sensing mechanism implicating the S100B/receptor for advanced glycation end products (RAGE) axis in antifungal immunity. The association of selected genetic variants in the S100B/RAGE axis with susceptibility to IA was investigated in 223 consecutive patients undergoing HSCT. Furthermore, studies addressing the functional consequences of these variants were performed. Susceptibility to IA was significantly associated with two distinct polymorphisms in RAGE (-374T/A) and S100B (+427C/T) genes, the relative contribution of each depended on their presence in both transplantation counterparts [patient SNPRAGE, adjusted hazard ratio (HR), 1.97; P = 0.042 and donor SNPRAGE, HR, 2.03; P = 0.047] or in donors (SNPS100B, HR, 3.15; P = 7.8e-4) only, respectively. Functional assays demonstrated a gain-of-function phenotype of both variants, as shown by the enhanced expression of inflammatory cytokines in RAGE polymorphic cells and increased S100B secretion in vitro and in vivo in the presence of the S100B polymorphism. These findings point to a relevant role of the danger sensing signaling in human antifungal immunity and highlight a possible contribution of a genetically-determined hyperfunction of the S100B/RAGE axis to susceptibility to IA in the HSCT setting.
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Affiliation(s)
- Cristina Cunha
- Microbiology Section, Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Perugia, Italy
| | - Gloria Giovannini
- Microbiology Section, Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Perugia, Italy
| | - Antonio Pierini
- Division of Hematology and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy
| | - Alain S. Bell
- Division of Hematology and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy
| | - Guglielmo Sorci
- Anatomy Section, Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Perugia, Italy
| | - Francesca Riuzzi
- Anatomy Section, Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Perugia, Italy
| | - Rosario Donato
- Anatomy Section, Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Perugia, Italy
| | - Fernando Rodrigues
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Andrea Velardi
- Division of Hematology and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy
| | - Franco Aversa
- Division of Hematology and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy
| | - Luigina Romani
- Microbiology Section, Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Perugia, Italy
| | - Agostinho Carvalho
- Microbiology Section, Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Perugia, Italy
- Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
- * E-mail:
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