論文 - 詳細
| RRC ID | 53701 |
|---|---|
| 著者 | Mok WW, Orman MA, Brynildsen MP. |
| タイトル | Impacts of global transcriptional regulators on persister metabolism. |
| ジャーナル | Antimicrob Agents Chemother |
| Abstract |
Bacterial persisters are phenotypic variants with an extraordinary capacity to tolerate antibiotics, and they are hypothesized to be a main cause of chronic and relapsing infections. Recent evidence has suggested that the metabolism of persisters can be targeted to develop therapeutic countermeasures; however, knowledge of persister metabolism remains limited due to difficulties associated with isolating these rare and transient phenotypic variants. By using a technique to measure persister catabolic activity, which is based on the ability of metabolites to enable aminoglycoside (AG) killing of persisters, we investigated the role of seven global transcriptional regulators (ArcA, Cra, cyclic AMP [cAMP] receptor protein [CRP], DksA, FNR, Lrp, and RpoS) on persister metabolism. We found that removal of CRP resulted in a loss of AG potentiation in persisters for all metabolites tested. These results highlight a central role for cAMP/CRP in persister metabolism, as its perturbation can significantly diminish the metabolic capabilities of persisters and effectively eliminate the ability of AGs to eradicate these troublesome bacteria. |
| 巻・号 | 59(5) |
| ページ | 2713-9 |
| 公開日 | 2015-5-1 |
| DOI | 10.1128/AAC.04908-14 |
| PII | AAC.04908-14 |
| PMID | 25712354 |
| PMC | PMC4394825 |
| MeSH | Aminoglycosides / pharmacology Anti-Bacterial Agents / pharmacology* Bacterial Outer Membrane Proteins / genetics Bacterial Proteins / genetics Cyclic AMP Receptor Protein / genetics Drug Resistance, Multiple, Bacterial / genetics Escherichia coli / drug effects Escherichia coli / metabolism Escherichia coli Proteins / genetics Gentamicins / pharmacology Microbial Sensitivity Tests Repressor Proteins / genetics |
| IF | 4.904 |
| 引用数 | 16 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 1 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| 原核生物(大腸菌) | |