Low Dose Carbon Monoxide Exposure in Idiopathic Pulmonary Fibrosis Produces a CO Signature Comprised of Oxidative Phosphorylation Genes
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Author
Casanova, NancyZhou, Tong
Gonzalez-Garay, Manuel L
Rosas, Ivan O
Goldberg, Hilary J
Ryter, Stefan W
Collard, Harold R
El-Chemaly, Souheil
Flaherty, Kevin R
Hunninghake, Gary M
Lasky, Joseph A
Lederer, David J
Machado, Roberto F
Martinez, Fernando J
Noth, Imre
Raghu, Ganesh
Choi, Augustine M K
Garcia, Joe G N
Affiliation
Univ Arizona Hlth Sci, Dept MedIssue Date
2019-10-15
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NATURE PUBLISHING GROUPCitation
Casanova, N., Zhou, T., Gonzalez-Garay, M.L. et al. Low Dose Carbon Monoxide Exposure in Idiopathic Pulmonary Fibrosis Produces a CO Signature Comprised of Oxidative Phosphorylation Genes. Sci Rep 9, 14802 (2019) doi:10.1038/s41598-019-50585-3Journal
SCIENTIFIC REPORTSRights
Copyright © The Author(s) 2019. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Compelling preclinical studies indicate that low-dose carbon monoxide (CO) abrogates experimental lung fibrosis. We recently reported the results of a multicenter, double-blinded, clinical trial of inhaled CO in patients with idiopathic pulmonary fibrosis (IPF). Identifying no significantly changes in metalloproteinase-7 (MMP7) serum concentration, or secondary endpoints of physiologic measurements, hospitalization, death, or patient-reported outcomes. In the present study, we evaluated the effect of low dose CO exposure (100-200 ppm) for 12 weeks on genome-wide gene expression in peripheral blood mononuclear cells (PBMC) derived from these IPF study subjects. We conducted transcriptome profiling on 38 IPF subjects with time points available at 0, 12, and 24 weeks. Total RNA isolated from PBMCs was hybridized onto the Affymetrix Human Gene 2.0 ST Array. We identified 621 genes significantly upregulated in the 24-week CO exposed group compared with the 12-week. Pathway analysis demonstrated association with Oxidative Phosphorylation (adjusted P < 0.05). We identified a clear CO signature dominated with 23 oxidative phosphorylation-related genes (FDR < 10%). We confirmed the expression of nine selected gene products using Nanostring's nCounter analysis system. These findings suggest this signature may serve as a potential genomic biomarker for CO exposure and for potential titration of dosage to allow precision testing of therapies in future low dose CO therapeutic studies in IPF.Note
Open access journalISSN
2045-2322PubMed ID
31615996Version
Final published versionSponsors
United States Department of Health & Human Services National Institutes of Health (NIH) - USA NIH National Heart Lung & Blood Institute (NHLBI) [5U01HL105371-03, SA 106476]ae974a485f413a2113503eed53cd6c53
10.1038/s41598-019-50585-3
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Except where otherwise noted, this item's license is described as Copyright © The Author(s) 2019. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License.
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