دورية أكاديمية
Pseudomonas aeruginosa adaptation and diversification in the non-cystic fibrosis bronchiectasis lung
| العنوان: | Pseudomonas aeruginosa adaptation and diversification in the non-cystic fibrosis bronchiectasis lung |
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| المؤلفون: | Hilliam, Y, Moore, MP, Lamont, IL, Bilton, D, Haworth, CS, Foweraker, J, Walshaw, MJ, Williams, D, Fothergill, JL, De Soyza, A, Winstanley, C |
| المساهمون: | National Institute for Health Research |
| المصدر: | 8 ; 1 |
| بيانات النشر: | European Respiratory Society |
| سنة النشر: | 2017 |
| المجموعة: | Imperial College London: Spiral |
| مصطلحات موضوعية: | Science & Technology, Life Sciences & Biomedicine, Respiratory System, DI-GMP PHOSPHODIESTERASE, BIOFILM FORMATION, INFECTION, POPULATION, RESISTANCE, DIVERSITY, SECRETION, PATHOGEN, SEQUENCE, STRAINS, Biofilms, Bronchiectasis, Cross Infection, Cystic Fibrosis, Humans, Phenotype, Pseudomonas Infections, Pseudomonas aeruginosa, Sputum, United Kingdom, Virulence Factors, Whole Genome Sequencing |
| الوصف: | To characterise Pseudomonas aeruginosa populations during chronic lung infections of non-cystic fibrosis bronchiectasis patients, we used whole-genome sequencing to 1) assess the diversity of P. aeruginosa and the prevalence of multilineage infections; 2) seek evidence for cross-infection or common source acquisition; and 3) characterise P. aeruginosa adaptations. 189 isolates, obtained from the sputa of 91 patients attending 16 adult bronchiectasis centres in the UK, were whole-genome sequenced. Bronchiectasis isolates were representative of the wider P. aeruginosa population. Of 24 patients from whom multiple isolates were examined, there were seven examples of multilineage infections, probably arising from multiple infection events. The number of nucleotide variants between genomes of isolates from different patients was in some cases similar to the variations observed between isolates from individual patients, implying the possible occurrence of cross-infection or common source acquisition. Our data indicate that during infections of bronchiectasis patients, P. aeruginosa populations adapt by accumulating loss-of-function mutations, leading to changes in phenotypes including different modes of iron acquisition and variations in biofilm-associated polysaccharides. The within-population diversification suggests that larger scale longitudinal surveillance studies will be required to capture cross-infection or common source acquisition events at an early stage. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0903-1936 |
| العلاقة: | European Respiratory Journal; http://hdl.handle.net/10044/1/89929Test; BRU 6279 |
| DOI: | 10.1183/13993003.02108-2016 |
| الإتاحة: | https://doi.org/10.1183/13993003.02108-2016Test http://hdl.handle.net/10044/1/89929Test |
| حقوق: | ©ERS 2017. This ERJ Open article is open access and distributed under the terms of the Creative Commons Attribution Licence 4.0. ; http://creativecommons.org/licenses/by/4.0Test/ |
| رقم الانضمام: | edsbas.10D3A394 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 09031936 |
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| DOI: | 10.1183/13993003.02108-2016 |