Adaptive Evolution of Pseudomonas aeruginosa in Human Airways Shows Phenotypic Convergence Despite Diverse Patterns of Genomic Changes.
| Title: | Adaptive Evolution of Pseudomonas aeruginosa in Human Airways Shows Phenotypic Convergence Despite Diverse Patterns of Genomic Changes. |
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| Authors: | Espaillat A; Department of Clinical Microbiology 9301, Rigshospitalet, Copenhagen Ø 2100, Denmark.; Colque CA; Department of Clinical Microbiology 9301, Rigshospitalet, Copenhagen Ø 2100, Denmark.; Rago D; The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby 2800, Denmark.; La Rosa R; Department of Clinical Microbiology 9301, Rigshospitalet, Copenhagen Ø 2100, Denmark.; The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby 2800, Denmark.; Molin S; The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby 2800, Denmark.; Johansen HK; Department of Clinical Microbiology 9301, Rigshospitalet, Copenhagen Ø 2100, Denmark.; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen N 2200, Denmark. |
| Source: | Molecular biology and evolution [Mol Biol Evol] 2024 Feb 01; Vol. 41 (2). |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Oxford University Press Country of Publication: United States NLM ID: 8501455 Publication Model: Print Cited Medium: Internet ISSN: 1537-1719 (Electronic) Linking ISSN: 07374038 NLM ISO Abbreviation: Mol Biol Evol Subsets: MEDLINE |
| Imprint Name(s): | Publication: 2003- : New York, NY : Oxford University Press; Original Publication: [Chicago, Ill.] : University of Chicago Press, [c1983- |
| MeSH Terms: | Pseudomonas aeruginosa*/genetics ; Cystic Fibrosis*/complications; Lung/microbiology ; Humans ; Genomics ; Mutation |
| Abstract: | Selective forces in the environment drive bacterial adaptation to novel niches, choosing the fitter variants in the population. However, in dynamic and changing environments, the evolutionary processes controlling bacterial adaptation are difficult to monitor. Here, we follow 9 people with cystic fibrosis chronically infected with Pseudomonas aeruginosa, as a proxy for bacterial adaptation. We identify and describe the bacterial changes and evolution occurring between 15 and 35 yr of within-host evolution. We combine whole-genome sequencing, RNA sequencing, and metabolomics and compare the evolutionary trajectories directed by the adaptation of 4 different P. aeruginosa lineages to the lung. Our data suggest divergent evolution at the genomic level for most of the genes, with signs of convergent evolution with respect to the acquisition of mutations in regulatory genes, which drive the transcriptional and metabolomic program at late time of evolution. Metabolomics further confirmed convergent adaptive phenotypic evolution as documented by the reduction of the quorum-sensing molecules acyl-homoserine lactone, phenazines, and rhamnolipids (except for quinolones). The modulation of the quorum-sensing repertoire suggests that similar selective forces characterize at late times of evolution independent of the patient. Collectively, our data suggest that similar environments and similar P. aeruginosa populations in the patients at prolonged time of infection are associated with an overall reduction of virulence-associated features and phenotypic convergence.; (© The Author(s) 2024. Published by Oxford University Press on behalf of Society for Molecular Biology and Evolution.) |
| Competing Interests: | Conflict of Interest Authors declare no competing interests. |
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| Contributed Indexing: | Keywords: Pseudomonas aeruginosa; adaptive evolution; clinical isolates; cystic fibrosis; evolution |
| Entry Date(s): | Date Created: 20240217 Date Completed: 20240226 Latest Revision: 20240226 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC10883414 |
| DOI: | 10.1093/molbev/msae022 |
| PMID: | 38366124 |
| Database: | MEDLINE |
Journal Article