論文 - 詳細
| RRC ID | 63395 |
|---|---|
| 著者 | Kida Y, Taira J, Kuwano K. |
| タイトル | EprS, an autotransporter serine protease, plays an important role in various pathogenic phenotypes of Pseudomonas aeruginosa. |
| ジャーナル | Microbiology (Reading) |
| Abstract |
Pseudomonas aeruginosa possesses an arsenal of both cell-associated (flagella, pili, alginate, etc.) and extracellular (exotoxin A, proteases, type III secretion effectors, etc.) virulence factors. Among them, secreted proteases that damage host tissues are considered to play an important role in the pathogenesis of P. aeruginosa infections. We previously reported that EprS, an autotransporter protease of P. aeruginosa, induces host inflammatory responses through protease-activated receptors. However, little is known about the role of EprS as a virulence factor of P. aeruginosa. In this study, to investigate whether EprS participates in the pathogenicity of P. aeruginosa, we characterized various pathogenic phenotypes of the wild-type PAO1 strain and its eprS-disrupted mutant. The growth assays demonstrated that the growth of the eprS mutant was somewhat lower than that of the wild-type strain in a minimal medium containing BSA as the sole carbon and nitrogen source. Thus, these results indicate that eprS would have a role in the growth of P. aeruginosa in the presence of limited nutrients, such as a medium containing proteinaceous materials as a sole nutrient source. Furthermore, disruption of eprS resulted in a decreased production of elastase, pigments, autoinducers and surfactants, and a reduction of swimming and swarming motilities. In addition, the eprS mutant exhibited a reduction in the ability to associate with A549 cells and an attenuation of virulence in leucopenic mice as compared with the wild-type strain. Collectively, these results suggest that EprS exerts pleiotropic effects on various pathogenic phenotypes of P. aeruginosa. |
| 巻・号 | 162(2) |
| ページ | 318-329 |
| 公開日 | 2016-2-1 |
| DOI | 10.1099/mic.0.000228 |
| PMID | 26678838 |
| MeSH | Animals Bacterial Adhesion / genetics Cell Line Humans Mice Pseudomonas Infections / microbiology Pseudomonas Infections / pathology* Pseudomonas aeruginosa / genetics Pseudomonas aeruginosa / growth & development Pseudomonas aeruginosa / pathogenicity* Serine Proteases / genetics* Surface-Active Agents / metabolism Virulence Factors / genetics* |
| IF | 2.138 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
|
| 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 | |
| ヒト・動物細胞 | A549 |