Receptor for Advanced Glycation End-Products and World Trade Center Particulate Induced Lung Function Loss: A Case-Cohort Study and Murine Model of Acute Particulate Exposure
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2017/09/19
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Details
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Personal Author:Caraher EJ ; Chen L-C ; Crowley G ; Ebrahim M ; Gordon T ; Haider SH ; Kwon S ; Lee A ; Liu M ; Nolan A ; Prezant DJ ; Schmidt AM ; Zhang L
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Description:World Trade Center-particulate matter(WTC-PM) exposure and metabolic-risk are associated with WTC-Lung Injury(WTC-LI). The receptor for advanced glycation end-products (RAGE) is most highly expressed in the lung, mediates metabolic risk, and single-nucleotide polymorphisms at the AGER-locus predict forced expiratory volume(FEV). Our objectives were to test the hypotheses that RAGE is a biomarker of WTC-LI in the FDNY-cohort and that loss of RAGE in a murine model would protect against acute PM-induced lung disease. We know from previous work that early intense exposure at the time of the WTC collapse was most predictive of WTC-LI therefore we utilized a murine model of intense acute PM-exposure to determine if loss of RAGE is protective and to identify signaling/cytokine intermediates. This study builds on a continuing effort to identify serum biomarkers that predict the development of WTC-LI. A case-cohort design was used to analyze a focused cohort of male never-smokers with normal pre-9/11 lung function. Odds of developing WTC-LI increased by 1.2, 1.8 and 1.0 in firefighters with soluble RAGE (sRAGE) >/= 97pg/mL, CRP >/= 2.4mg/L, and MMP-9 ≤ 397ng/mL, respectively, assessed in a multivariate logistic regression model (ROCAUC of 0.72). Wild type(WT) and RAGE-deficient(Ager-/-) mice were exposed to PM or PBS-control by oropharyngeal aspiration. Lung function, airway hyperreactivity, bronchoalveolar lavage, histology, transcription factors and plasma/BAL cytokines were quantified. WT-PM mice had decreased FEV and compliance, and increased airway resistance and methacholine reactivity after 24-hours. Decreased IFN-gamma and increased LPA were observed in WT-PM mice; similar findings have been reported for firefighters who eventually develop WTC-LI. In the murine model, lack of RAGE was protective from loss of lung function and airway hyperreactivity and was associated with modulation of MAP kinases. We conclude that in a multivariate adjusted model increased sRAGE is associated with WTC-LI. In our murine model, absence of RAGE mitigated acute deleterious effects of PM and may be a biologically plausible mediator of PM-related lung disease. [Description provided by NIOSH]
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ISSN:1932-6203
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Volume:12
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Issue:9
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NIOSHTIC Number:nn:20050446
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Citation:PLoS One 2017 Sep; 12(9):e0184331
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Contact Point Address:Anna Nolan, Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, New York, United States of America
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Email:anna.nolan@med.nyu.edu
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Federal Fiscal Year:2017
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Performing Organization:New York City Fire Department
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Peer Reviewed:True
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Start Date:20040701
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Source Full Name:PLoS One
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End Date:20110630
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Main Document Checksum:urn:sha-512:b89b1f7bf9e62ba42f9442a08e8a67e7a4a3c2808055879bec4775f04b254496fd836a518cdc387fa981c9ea33e0591c5d2faa5d89d54164fa96aff649322376
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