Proteomics

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An rRNA fragment in extracellular vesicles secreted by human airway epithelial cells increases the fluoroquinolone sensitivity of P. aeruginosa


ABSTRACT: Extracellular vesicles (EVs) secreted by human airway epithelial cells contain small RNAs that are transferred to P. aeruginosa upon EV exposure. The purpose of this experiment was to characterize the effect of a 27-nucleotide long human 18S rRNA external transcribed spacer fragment on P. aeruginosa protein levels.

INSTRUMENT(S): timsTOF Pro

ORGANISM(S): Pseudomonas Aeruginosa (strain Ucbpp-pa14)

SUBMITTER: Byoung-Kyu Cho  

LAB HEAD: Bruce Stanton

PROVIDER: PXD033165 | Pride | 2023-10-24

REPOSITORIES: Pride

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Publications

An rRNA fragment in extracellular vesicles secreted by human airway epithelial cells increases the fluoroquinolone sensitivity of <i>P. aeruginosa</i>.

Koeppen Katja K   Hampton Thomas H TH   Barnaby Roxanna R   Roche Carolyn C   Gerber Scott A SA   Goo Young Ah YA   Cho Byoung-Kyu BK   Vermilyea Danielle M DM   Hogan Deborah A DA   Stanton Bruce A BA  

American journal of physiology. Lung cellular and molecular physiology 20230531 1


Lung infections caused by antibiotic-resistant strains of <i>Pseudomonas aeruginosa</i> are difficult to eradicate in immunocompromised hosts such as those with cystic fibrosis. We previously demonstrated that extracellular vesicles (EVs) secreted by primary human airway epithelial cells (AECs) deliver microRNA let-7b-5p to <i>P. aeruginosa</i> to suppress biofilm formation and increase sensitivity to beta-lactam antibiotics. In this study, we show that EVs secreted by AECs transfer multiple dis  ...[more]

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