Systematic analysis of multidrug efflux pumps in multidrug resistant bacteria and development of pump inhibitor

多重耐药菌多药外排泵的系统分析及泵抑制剂的开发

基本信息

  • 批准号:
    16390131
  • 负责人:
  • 金额:
    $ 8.9万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2004
  • 资助国家:
    日本
  • 起止时间:
    2004 至 2006
  • 项目状态:
    已结题

项目摘要

Infections by multidrug resistant bacteria such as methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE), Pseudomonas aeruginosa, Klebsiella pneumoniae are serious problems. Multidrug efflux pumps are most importantly involved in the multidrug resistance in multidrug resistant bacteria. We systematically investigated the multidrug efflux pumps of such bacteria. Based on genome sequence of MRSA N315, we cloned all of the 37 genes for tentative multidrug efflux pumps, and characterized the pumps. Also we investigated expression of the 37 genes in MRSA N315, and made clear which ones are really expressed in N315 cells and really contributing to the multidrug resistance. Thus, total picture of multidrug efflux pumps was made clear in MRSA N315. RND-type multidrug efflux pumps play major role in multidrug resistance in P aeruginosa. We cloned all of the 11 possible genes for RND-type multidrug efflux pumps in P aeruginosa PAO1 with which genome sequence is available. We characterized all of the hitherto uncharacterized pumps. Thus, total picture of RND-type multidrug efflux pumps was made clear. We isolated mutants of P.aeruginosa with elevated resistance to multiple antimicrobial agents. We cloned genes responsible for the multidrug resistance from chromosome of the mutants, expressed the genes and characterized the pumps. We identified the mutated portion of each gene for multidrug efflux pump. Genes for multidrug efflux pumps were also cloned from chromosome of K.pneumoniae, VRE, Vibrio parahaemolyticus and V.cholerae non-O1. We characterized many multidrug efflux pumps. We constructed mutants lacking genes for the multidrug efflux pumps, and investigated physiological roles of the pumps.We found inhibitors for the multidrug efflux pumps, skyrin and baicalein.
耐甲氧西林金黄色葡萄球菌(MRSA)、耐万古霉素肠球菌(VRE)、铜绿假单胞菌、肺炎克雷伯菌等多重耐药菌的感染是严重的问题。多药外排泵是多药耐药菌产生多药耐药的重要机制。我们系统地研究了这种细菌的多药外排泵。根据MRSA N315的基因组序列,我们克隆了所有37个初步多药外排泵的基因,并对泵进行了表征。我们还研究了37个基因在MRSA N315中的表达,并明确了哪些基因在N315细胞中真正表达并真正有助于多药耐药。因此,在MRSA N315中清楚地显示了多药外排泵的全貌。RND型多药外排泵在铜绿假单胞菌的多药耐药中起主要作用。我们克隆了铜绿假单胞菌PAO1中RND型多药外排泵的所有11个可能的基因,其基因组序列可用。我们对所有迄今为止尚未表征的泵进行了表征。因此,RND型多药外排泵的全貌是清楚的。我们分离出了对多种抗菌药物耐药性升高的铜绿假单胞菌突变体。我们从突变体的染色体上克隆了负责多药耐药的基因,表达了这些基因并表征了泵。我们确定了多药外排泵的每个基因的突变部分。还从肺炎克雷伯菌、VRE、副溶血性弧菌和非O1型霍乱弧菌的染色体中克隆了多药外排泵基因。我们的特点是许多多药外排泵。我们构建了缺失多药外排泵基因的突变体,并研究了多药外排泵的生理作用,发现了多药外排泵的抑制剂Skyrin和Baicalein。

项目成果

期刊论文数量(47)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Mechanism for the degradation of origin recognition complex containing Orc5p with a defective Walker A motif and its suppression by over-expression of Orc4p in yeast cells.
含有具有缺陷的 Walker A 基序的 Orc5p 的起源识别复合物的降解机制以及通过在酵母细胞中过度表达 Orc4p 来抑制其的机制。
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Makise;M. et al.
  • 通讯作者:
    M. et al.
KmrA multidrug efflux pump from Klebsiella pneumoniae.
KmrA 肺炎克雷伯菌多药外排泵。
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Ogawa;W. et al.
  • 通讯作者:
    W. et al.
AbeM, an H+ coupled Acinetobacter baumanii multidrug efflux pump belonging to the MATE family of transporters.
AbeM,一种 H 偶联鲍曼不动杆菌多药外排泵,属于 MATE 转运蛋白家族。
Polyphnolic constituents structures of Zanthozylum piperitum fruit and the antibacterial effects of its polymeric procianidin on methicillin resistent Staphulococcus aureus
花椒果实多酚成分结构及其聚合原花青素对耐甲氧西林金黄色葡萄球菌的抗菌作用
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Yamada Y.;et al.;Ogawa W. et al.;Nagoshi C. et al.;Kusuda M. et al.;Tanabe T. et al.;Chihiro Nagoshi et al.;Miwako Kusuda et al.
  • 通讯作者:
    Miwako Kusuda et al.
Mechanisms of action of corilagin and tellimagrandin I that remarkably potentiate the activity of beta-lactams against methicillin-resistant Staphylococcus aureus.
Corilagin 和tellimagrandin I 的作用机制显着增强 β-内酰胺对耐甲氧西林金黄色葡萄球菌的活性。
  • DOI:
  • 发表时间:
    2004
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Tsutsumi;S. et al.;Shiota S. et al.
  • 通讯作者:
    Shiota S. et al.
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TSUCHIYA Tomofusa其他文献

TSUCHIYA Tomofusa的其他文献

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{{ truncateString('TSUCHIYA Tomofusa', 18)}}的其他基金

Analysis of multidrug resistance systems in multidrug resistant bacteria and development of drugs effective on the resistant bacteria
多重耐药菌的多重耐药系统分析及针对耐药菌有效药物的开发
  • 批准号:
    20590120
  • 财政年份:
    2008
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Tne initiator of chromosomal DNA replication in E. coli.
大肠杆菌中染色体 DNA 复制的引发剂。
  • 批准号:
    11470486
  • 财政年份:
    1999
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Structure and function of drug- and ion-extrusion systems in bacteria
细菌中药物和离子挤出系统的结构和功能
  • 批准号:
    09672230
  • 财政年份:
    1997
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Unity and diversity in active transport in cell membrans
细胞膜主动运输的统一性和多样性
  • 批准号:
    09044310
  • 财政年份:
    1997
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Characteristics of ion tranport systems in Vibrio parahaemolyticus and Staphylococcus aureus
副溶血性弧菌和金黄色葡萄球菌离子传输系统的特点
  • 批准号:
    07672358
  • 财政年份:
    1995
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Molecular mechanism of energy coupling in active transport
主动运输中能量耦合的分子机制
  • 批准号:
    06044153
  • 财政年份:
    1994
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Structure and mechanism in cation-coupled transport systems
阳离子耦合传输系统的结构和机制
  • 批准号:
    04044122
  • 财政年份:
    1992
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Analysis of factors involved in serine-sensitivity in bacterial cells
细菌细胞丝氨酸敏感性相关因素分析
  • 批准号:
    04671351
  • 财政年份:
    1992
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Structure and mechanism in active transport systems for sugars, amino acids and ions.
糖、氨基酸和离子主动运输系统的结构和机制。
  • 批准号:
    63571041
  • 财政年份:
    1988
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Alterations in the primary structure of the active transport carrier and changes in the function
主动转运载体一级结构的改变和功能的变化
  • 批准号:
    61580145
  • 财政年份:
    1986
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

相似海外基金

Small Molecule Inhibition of a Multidrug Efflux Pump of Pseudomonas aeruginosa
铜绿假单胞菌多药外排泵的小分子抑制
  • 批准号:
    10435576
  • 财政年份:
    2021
  • 资助金额:
    $ 8.9万
  • 项目类别:
Small Molecule Inhibition of a Multidrug Efflux Pump of Pseudomonas aeruginosa
铜绿假单胞菌多药外排泵的小分子抑制
  • 批准号:
    10286575
  • 财政年份:
    2021
  • 资助金额:
    $ 8.9万
  • 项目类别:
The Hidden Role of the Multidrug Efflux Pump: Understanding Its Role by Identifying Its Unknown Substrates
多药外排泵的隐藏作用:通过识别其未知底物来了解其作用
  • 批准号:
    20K15994
  • 财政年份:
    2020
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
Building a molecular basis for multidrug efflux pump inhibitors effective against multidrug-resistant Pseudomonas aeruginosa infections
为有效对抗多重耐药铜绿假单胞菌感染的多药外排泵抑制剂建立分子基础
  • 批准号:
    19K07547
  • 财政年份:
    2019
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Mapping the interactions within multidrug efflux pump assemblies.
绘制多药物外排泵组件内的相互作用。
  • 批准号:
    BB/N002776/1
  • 财政年份:
    2016
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Research Grant
Regulation and natural function of the multidrug efflux pump MexAB-OprM of Pseudomonas aeruginosa
铜绿假单胞菌多药外排泵MexAB-OprM的调节和自然功能
  • 批准号:
    443694-2013
  • 财政年份:
    2015
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Alexander Graham Bell Canada Graduate Scholarships - Doctoral
Regulation and natural function of the multidrug efflux pump MexAB-OprM of Pseudomonas aeruginosa
铜绿假单胞菌多药外排泵MexAB-OprM的调节和自然功能
  • 批准号:
    443694-2013
  • 财政年份:
    2014
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Alexander Graham Bell Canada Graduate Scholarships - Doctoral
Regulation and natural function of the multidrug efflux pump MexAB-OprM of Pseudomonas aeruginosa
铜绿假单胞菌多药外排泵MexAB-OprM的调节和自然功能
  • 批准号:
    443694-2013
  • 财政年份:
    2013
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Alexander Graham Bell Canada Graduate Scholarships - Doctoral
Structural Dynamics of Drug/Proton Antiport by a Multidrug Efflux Pump
多药物外排泵的药物/质子反输的结构动力学
  • 批准号:
    8253927
  • 财政年份:
    2012
  • 资助金额:
    $ 8.9万
  • 项目类别:
Critical role of multidrug efflux pump in the pathogenicity of Listeria monocytogenes
多药外排泵在单核细胞增生李斯特菌致病性中的关键作用
  • 批准号:
    24659196
  • 财政年份:
    2012
  • 资助金额:
    $ 8.9万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
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