期刊
EUROPEAN RESPIRATORY JOURNAL
卷 49, 期 6, 页码 -出版社
EUROPEAN RESPIRATORY SOC JOURNALS LTD
DOI: 10.1183/13993003.02322-2016
关键词
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资金
- Swedish Heart-Lung Foundation [HLF 20140469, HLF20130486, HLF20100463, HLF20120801, HLF20160427]
- Swedish Research Council [2016-02798, K2014-58X-22502-01-5]
- Swedish Foundation for Strategic Research (SSF)
- VINNOVA (VINN-MER)
- EU FP6 Marie Curie
- Karolinska Institutet
- AFA Insurance
- King Oscar II Jubilee Foundation
- King Gustaf V and Queen Victoria's Freemasons Foundation
- regional agreement on medical training and clinical research (ALF)
- AstraZeneca Joint Research Program in Translational Science (ChAMP
- Centre for Allergy Research Highlights Asthma Markers of Phenotype)
- Canadian Institutes of Health Research Fellowship [MFE-135481]
- Swedish Heart Lung Foundation [HLF 20150640]
- Crossref Funder Registry
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease and a leading cause of mortality and morbidity worldwide. The aim of this study was to investigate the sex dependency of circulating metabolic profiles in COPD. Serum from healthy never-smokers (healthy), smokers with normal lung function (smokers), and smokers with COPD (COPD; Global Initiative for Chronic Obstructive Lung Disease stages I-II/A-B) from the Karolinska COSMIC cohort (n=116) was analysed using our nontargeted liquid chromatography-high resolution mass spectrometry metabolomics platform. Pathway analyses revealed that several altered metabolites are involved in oxidative stress. Supervised multivariate modelling showed significant classification of smokers from COPD (p=2.8x10(-7)). Sex stratification indicated that the separation was driven by females (p=2.4x10(-7)) relative to males (p=4.0x10(-4)). Significantly altered metabolites were confirmed quantitatively using targeted metabolomics. Multivariate modelling of targeted metabolomics data confirmed enhanced metabolic dysregulation in females with COPD (p=3.0x10(-3)) relative to males (p=0.10). The autotaxin products lysoPA (16: 0) and lysoPA (18: 2) correlated with lung function (forced expiratory volume in 1 s) in males with COPD (r=0.86; p<0.0001), but not females (r=0.44; p=0.15), potentially related to observed dysregulation of the miR-29 family in the lung. These findings highlight the role of oxidative stress in COPD, and suggest that sex-enhanced dysregulation in oxidative stress, and potentially the autotaxin-lysoPA axis, are associated with disease mechanisms and/or prevalence.
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