セキ マサフミ
SEK Masafumi
関 雅文 所属 埼玉医科大学 医学部 国際医療センター 感染症科・感染制御科 職種 教授 |
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論文種別 | 学術雑誌(原著) |
言語種別 | 英語 |
査読の有無 | 査読なし |
表題 | Role of the Slt2 mitogen-activated protein kinase pathway in cell wall integrity and virulence in Candida glabrata. |
掲載誌名 | 正式名:FEMS yeast research ISSNコード:15671356 |
巻・号・頁 | 10(3),343-52頁 |
著者・共著者 | Taiga Miyazaki,Tatsuo Inamine,Shunsuke Yamauchi,Yosuke Nagayoshi,Tomomi Saijo,Koichi Izumikawa,Masafumi Seki,Hiroshi Kakeya,Yoshihiro Yamamoto,Katsunori Yanagihara,Yoshitsugu Miyazaki,Shigeru Kohno |
発行年月 | 2010/05 |
概要 | The Slt2 mitogen-activated protein kinase pathway plays a major role in maintaining fungal cell wall integrity. In this study, we investigated the effects of SLT2 deletion and overexpression on drug susceptibility and virulence in the opportunistic fungal pathogen Candida glabrata. While the Deltaslt2 strain showed decreased toleranceto elevated temperature and cell wall-damaging agents, the SLT2-overexpressing strain exhibited increased tolerance to these stresses. A mutant lacking Rlm1, a transcription factor downstream of Slt2, displayed a cell wall-associated phenotype intermediate to that of the Deltaslt2 strain. When RLM1 was overexpressed, micafungin tolerance was increased in the wild-type strain and partial restoration of the drug tolerance was observed in the Deltaslt2 background. It was also demonstrated that echinocandin-class antifungals were more effective against C. glabrata under acidic conditions or when used concurrently with the chitin synthesis inhibitor nikkomycin Z. Finally, in a mouse model of disseminated candidiasis, the deletion and overexpression of C. glabrata SLT2 resulted in mild decreases and increases, respectively, in the CFUs from murine organs co |
DOI | 10.1111/j.1567-1364.2010.00611.x |
NAID | 120003055714 |
PMID | 20214686 |