Ontology highlight
ABSTRACT: Progressive decline in lung function is a hallmark of chronic obstructive pulmonary disease (COPD). Although airway dysbiosis occurs in COPD, whether it contributes to disease progression remains unknown. Here, through a longitudinal analysis on 181 COPD individuals from two large cohorts involving four UK clinical centers, we showed that baseline airway dysbiosis, characterized by enrichment of opportunistic pathogenic taxa, was associated with rapid forced expiratory volume in one second (FEV1) decline over two years. Co-presence of Moraxella, Staphylococcus and Stenotrophomonas was associated with an accelerated FEV1 decline by 139.7 mL/year. The dysbiosis was associated with exacerbation-related FEV1 fall and sudden FEV1 fall at clinical stability, two critical events contributing to long-term FEV1 decline. The microbiota association with FEV1 decline was validated in a third, independent cohort in China. Human multi-omics, murine and cellular mechanistic studies showed that chronic airway colonization of Staphylococcus aureus promoted lung function decline through producing homocysteine, which elicited an apoptosis-to-NETosis shift in neutrophils toward persistent inflammation via AKT1-S100A8/A9 axis. Prophylactic and therapeutic depletion of S. aureus via bacteriophage restored lung function in emphysema mice. These results provide a fresh approach to slow COPD progression by targeting the airway microbiome. Linked studies: UPLC-MS/MS assays of human samples are reported in this study. UPLC-MS/MS assays of murine samples are reported in MTBLS6894. UPLC-MS/MS assays of original cohort human samples are reported in MTBLS4017.
INSTRUMENT(S): Liquid Chromatography MS - positive - hilic, Liquid Chromatography MS - negative - hilic
SUBMITTER: Zhang Wang
PROVIDER: MTBLS5423 | MetaboLights | 2023-06-12
REPOSITORIES: MetaboLights
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MTBLS5423 | Other | |||
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a_MTBLS5423_LC-MS_negative_hilic_metabolite_profiling.txt | Txt | |||
a_MTBLS5423_LC-MS_positive_hilic_metabolite_profiling.txt | Txt | |||
files-all.json | Other |
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Cell host & microbe 20230518 6
Progressive lung function decline is a hallmark of chronic obstructive pulmonary disease (COPD). Airway dysbiosis occurs in COPD, but whether it contributes to disease progression remains unknown. Here, we show, through a longitudinal analysis of two cohorts involving four UK centers, that baseline airway dysbiosis in COPD patients, characterized by the enrichment of opportunistic pathogenic taxa, associates with a rapid forced expiratory volume in 1 s (FEV<sub>1</sub>) decline over 2 years. Dys ...[more]