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呼吸器感染症病原菌の表皮細胞内侵入と抗菌薬からのエスケープ機構

Research Project

Project/Area Number 22591102
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Infectious disease medicine
Research InstitutionTohoku University

Principal Investigator

平潟 洋一  東北大学, 医学(系)研究科(研究院), 教授 (50238341)

Co-Investigator(Kenkyū-buntansha) 矢野 寿一  東北大学, 大学院・医学系研究科, 講師 (20374944)
新井 和明  東北大学, 大学院・医学系研究科, 研究補助員 (30547386)
Project Period (FY) 2010-04-01 – 2013-03-31
Project Status Declined (Fiscal Year 2012)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords緑膿菌 / 細胞侵入性 / 培養細胞 / 殺菌効果 / アシネトバクター / gentamicin killing assay / 血液培養 / 病原性
Research Abstract

浮遊状態と上皮細胞接着・侵入状態の緑膿菌に対する各種抗菌薬の効果を比較することで、緑膿菌のMDCK細胞およびA549細胞への侵入の意義について解析した。緑膿菌ATCC27853株、PAO1に対するメロペネム(MEPM)、セフタジジム(CAZ)、ゲンタマイシン(GM)、シプロフロキサシン(CPFX)の最小発育阻止濃度(MIC)および最小殺菌阻止濃度(MBC)を測定した。ATCC27853株に対するMIC/MBCはMEPM0.5/0.5、CAZ1/1、GM1/1、CPFX0.5/1μg/ml、PAO1に対しては0.5/1、1/1、1/20.125/0.25μg/mlであった。これらは殺菌性の抗菌薬であり、一夜培養での成績は妥当と考えられた。さらに菌接種後30分、2時間、6時間、9時間、12時間のMBCを検討した。濃度依存性殺菌性抗菌薬であるGMおよびCPFXのMBCは30分後に低下し始めたが、時間依存性殺菌性抗菌薬であるCAZ、MEPMはこれより遅れ9時間、6時間で低下し始めた。
緑膿菌ATCC27853株、PAO1株をMDCK細胞およびA549細胞に3時間接触させ、浮遊細菌を洗浄後のシステムで評価を行った。抗菌薬の作用時間は2時間とした。MDCK細胞およびA549細胞に付着・侵入した細菌の場合、CAZとMEPMは256μg/mlの高濃度でも全く殺菌性を示さなかった。これに対し、GMは32μg/mlで2時間での殺菌効果を呈したが、殺菌率は99%に留まった。一方、CPFXは同様に2時間で殺菌効果を呈し、その殺菌率は99.9%であった。
以上の結果は、短時間で殺菌作用を示すGMとCPFXが細胞に付着・侵入した細菌にも効果を呈したものの、短時間殺菌脳の劣る抗菌薬では効果が見られないことを裏付けることとなった。上皮細胞に付着・貪食した細菌に対し、細胞内透過性の高いCPFXが最も優れたことから、細菌の上皮細胞への侵入は侵襲性感染症への進展のステップのみならず、抗菌薬からのエスケープ機構として働いていると考えられた。

Report

(2 results)
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (60 results)

All 2012 2011 2010

All Journal Article (25 results) (of which Peer Reviewed: 16 results) Presentation (27 results) Book (8 results)

  • [Journal Article] Latent tuberculosis infection in nurses exposed to tuberculous patients cared for in rooms without negative pressure after the 2011 Great East Japan Earthquake2012

    • Author(s)
      Kanamori H
    • Journal Title

      Infect Control Hosp Epidemiol

      Volume: (未定)(in press)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bactericidal effects of antimicrobial agents on epithelial cell-associated Pseudomonas aeruginosa2012

    • Author(s)
      Hirakata Y
    • Journal Title

      J Infect Chemother

      Volume: (未定)(in press)

    • NAID

      10030787276

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First carbapenem-resistant isolates of Acinetobacter soli in Japan2012

    • Author(s)
      Endo S
    • Journal Title

      Antimicrob Agents Chemother

      Volume: (未定)(in press)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Emergence of fluoroquinolone-resistant Streptococcus pyogenes in Japan by a point mutation leading to a new amino acid substitution2011

    • Author(s)
      Arai K
    • Journal Title

      J Antimicrob Chemother

      Volume: 66 Pages: 494-498

    • Related Report
      2011 Annual Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Activation of pulmonary invariant NKT cells leads to exacerbation of acute lung injury caused by LPS through local production of IFN-γ and TNF-α by Gr-1+ monocytes2011

    • Author(s)
      Aoyagi T
    • Journal Title

      Int Immunol

      Volume: 23 Pages: 97-108

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of interpretive criteria for tebipenem disk diffusion susceptibility testing with Staphylococcus spp.and Haemophilus influenzae2011

    • Author(s)
      Fujisaki M
    • Journal Title

      J Infect Chemother

      Volume: 17 Pages: 17-23

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Molecular characteristics of extended-spectrum β-lactamases in clinical isolates of Enterobacteriaceae from the Philippines2011

    • Author(s)
      Kanamori H
    • Journal Title

      Acta Tropica

      Volume: 120 Pages: 140-145

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High prevalence of extended-spectrum β-lactamases and qnr determinants in Citrobacter species from Japan : Dissemination of CTX-M-22011

    • Author(s)
      Kanamori H
    • Journal Title

      J Antimicrob Chemother

      Volume: 66 Pages: 2255-2262

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Post-Tsunami Outbreaks of Influenza in Evacuation Centers in Miyagi Prefecture, Japan2011

    • Author(s)
      Hatta M
    • Journal Title

      Clin Infect Dis

      Volume: 54

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Binax NOW(R) Streptococcus pneumoniae test of middle ear fluid for detecting causative pathogens in children with acute otitls media2011

    • Author(s)
      Okitsu N
    • Journal Title

      J Microbiol Methods

      Volume: 84 Pages: 341-342

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Activation of pulmonary mvanant NKT cells leads to exacerbation of acute lung injury caused by LPS through local production of IFN-γ and TNF-α by Gr-1+ monocytes.2011

    • Author(s)
      Aoyagi T
    • Journal Title

      Int Innunol

      Volume: 23 Pages: 97-108

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Precipitating factors in the pathogenesis of peritonsillar abscess and bacteriological significance of the Streptococcus milleri group2011

    • Author(s)
      Hidaka H
    • Journal Title

      Eur J Clin Microbiol Infect Dis

      Volume: 印刷中

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 海外における薬剤耐性クラム陰性桿菌の動向2011

    • Author(s)
      矢野寿一、平潟洋一
    • Journal Title

      日本化学療法学会誌

      Volume: 59 Pages: 816-816

    • Related Report
      2010 Annual Research Report
  • [Journal Article] Polymorphisms in the Pseudomonas aeruginosa type III secretion protein2010

    • Author(s)
      Lynch SV
    • Journal Title

      Microbial Pathogenesis

      Volume: 48 Pages: 197-204

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Methicillin resistant Staphylococcus aureus in a Japanese community hospital2010

    • Author(s)
      Kunishima H
    • Journal Title

      J Infect Chemother

      Volume: 16 Pages: 414-417

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 性感染症による急性扁桃炎の2症例2010

    • Author(s)
      大島英敏
    • Journal Title

      日本耳鼻咽喉科感染症研究会会誌

      Volume: 28 Pages: 101-106

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Two patients who developed leptospirosis-associated acute renal failure within the same season2010

    • Author(s)
      Yamashita H
    • Journal Title

      Intern Med

      Volume: 49 Pages: 1143-7

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] インフルエンザに関するガイトライン2010

    • Author(s)
      矢野寿一
    • Journal Title

      JOHNS

      Volume: 26 Pages: 777-780

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 拡散か懸念されるKPC型βラクタマーゼ2010

    • Author(s)
      矢野寿一
    • Journal Title

      医学のあゆみ

      Volume: 233 Pages: 566-7

    • Related Report
      2010 Annual Research Report
  • [Journal Article] CLSIの抗菌薬感受性試験委員会について2010

    • Author(s)
      平潟洋一
    • Journal Title

      臨床検査室グローバルニュース

      Volume: 2 Pages: 37-37

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 知っておきたい耐性菌の特徴-臨床上重要な耐性菌BLNARインフルエンザ菌2010

    • Author(s)
      矢野寿一
    • Journal Title

      月刊薬事

      Volume: 52 Pages: 1377-1380

    • Related Report
      2010 Annual Research Report
  • [Journal Article] お母さんへの回答マニュアル耳鼻咽喉科Q&A2010「子ともにインフルエンザの予防注射をしたのてすか、インフルエンザになってしまいました?とうして効かなかったのてすか?」2010

    • Author(s)
      矢野寿一
    • Journal Title

      JOHNS

      Volume: 26 Pages: 1564-1565

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 原因微生物による分類と臨床的特徴細菌性肺炎2010

    • Author(s)
      平潟洋一
    • Journal Title

      綜合臨牀

      Volume: 59 Pages: 2046-2050

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 薬剤耐性緑膿菌およひアシネトバクター感染症-MDRP, MDR-Acinetobacterを含む2010

    • Author(s)
      平潟洋一
    • Journal Title

      小児科診療

      Volume: 73 Pages: 205-210

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 感染症・最近の話題-ヒトメタニューモウイルス2010

    • Author(s)
      堀亨
    • Journal Title

      JOHNS

      Volume: 26 Pages: 1759-1762

    • Related Report
      2010 Annual Research Report
  • [Presentation] Molecular characteristics of extended-spectrum β-lactamase-producing Escherichia coli in Japan : Emergence of CTX-M-27-producing E.coli2011

    • Author(s)
      Yano H
    • Organizer
      Interscience Conference on Antimicrobial Agents and Chemotherapy
    • Place of Presentation
      Chicago, America
    • Year and Date
      2011-09-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] Genetic analysis of macrolide-resistant Streptococcus pyogenes in Japan : High prevalence of inducible telithromycin-resistance2011

    • Author(s)
      Arai K
    • Organizer
      Interscience Conference on Antimicrobial Agents and Chemotherapy
    • Place of Presentation
      Chicago, America
    • Year and Date
      2011-09-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] Molecular and carbapenem resistance epidemiology of Acinetobacter spp.in Japan2011

    • Author(s)
      Endo S
    • Organizer
      Interscience Conference on Antimicrobial Agents and Chemotherapy
    • Place of Presentation
      Chicago, America
    • Year and Date
      2011-09-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] Molecular characteristics of extended-spectrum β-lactamase-producing Escherichia coli in Japan : Emergence of CTX-M-15-producing E.coli ST1312011

    • Author(s)
      Yano H
    • Organizer
      European Congress of Clinical Microbiology and Infectious Diseases
    • Place of Presentation
      Milan, Italy
    • Year and Date
      2011-05-07
    • Related Report
      2011 Annual Research Report
  • [Presentation] 宮城県て分離された肺炎球菌、インフルエンザ菌の薬剤感受性動向2011

    • Author(s)
      矢野寿一
    • Organizer
      第22回日本臨床微生物学会総会
    • Place of Presentation
      岡山
    • Year and Date
      2011-01-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Characteristics of plasmid mediated quinolone resistance determinants in extended-spectrum β-lactamase Enterobacteriaceae in the Philippines2010

    • Author(s)
      Kanamori H
    • Organizer
      第51回日本熱帯医学会大会
    • Place of Presentation
      仙台
    • Year and Date
      2010-12-04
    • Related Report
      2010 Annual Research Report
  • [Presentation] Characteristics of xtended-spectrum β-Lactamase and/or AmpC β-Lactamase Producing Enterobacteriaceae and the Plasmid-mediated Quinolone Resistance Determinants in the Philippines2010

    • Author(s)
      Kanamori H
    • Organizer
      Asian-African Research Forum on Emerging and Reemerging Infections 2010
    • Place of Presentation
      Hanoi, Vietnam
    • Year and Date
      2010-11-12
    • Related Report
      2010 Annual Research Report
  • [Presentation] 感染症コンサルテーンヨンと感染対策のintegration-病原体の特徴も含めて-2010

    • Author(s)
      平潟洋一
    • Organizer
      第59回日本感染症学会東日本地方会学術集会・第57回日本化学療法学会東日本支部総会合同学会(第108回ICD講習会)
    • Place of Presentation
      東京
    • Year and Date
      2010-10-22
    • Related Report
      2010 Annual Research Report
  • [Presentation] ESBLs産生菌による菌血症の臨床経過およひリスク因子について2010

    • Author(s)
      國島広之
    • Organizer
      第59回日本感染症学会東日本地方会学術集会・第57回日本化学療法学会東日本支部総会合同学会
    • Place of Presentation
      東京
    • Year and Date
      2010-10-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] 本邦て分離されたEnterobacter属における基質特異性拡張型βラクタマーセ(ESBL)産生状況2010

    • Author(s)
      矢野寿一
    • Organizer
      第59回日本感染症学会東日本地方会学術集会・第57回日本化学療法学会東日本支部総会合同学会
    • Place of Presentation
      東京
    • Year and Date
      2010-10-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] 血流感染診断におけるプロカルシトニン定量測定の有用性2010

    • Author(s)
      青柳哲史
    • Organizer
      第59回日本感染症学会東日本地方会学術集会・第57回日本化学療法学会東日本支部総会合同学会
    • Place of Presentation
      東京
    • Year and Date
      2010-10-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] 国内におけるカルハペネム耐性Acinetobacter sppの疫学的解析2010

    • Author(s)
      遠藤史郎
    • Organizer
      第59回日本感染症学会東日本地方会学術集会・第57回日本化学療法学会東日本支部総会合同学会
    • Place of Presentation
      東京
    • Year and Date
      2010-10-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] Infection control practices for pandemic influenza (H1N1) 2009 among heal heaith care personnel at Tohoku University Hospital in Japan : travel restriction, compliance of hand and respiratory hygiene, immunization, and monitoring infected personnel2010

    • Author(s)
      Kanamori H
    • Organizer
      8^<th> Asia-Pacific Travel Health Conference
    • Place of Presentation
      Nara, Japan
    • Year and Date
      2010-10-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] Activities to promote infection control for pandemic (H1N1) 2009 at a regional medical center in Tacloban, the Philippines2010

    • Author(s)
      Hatta M
    • Organizer
      8^<th> Asia-Pacific Travel Health Conference
    • Place of Presentation
      Nara, Japan
    • Year and Date
      2010-10-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] Regional variation in the prevalence of extended-spectrum β-lactamases in clinical isolates of Enterobacter and Citrobacter species in Japan2010

    • Author(s)
      Kanamori H
    • Organizer
      7th International Conference of the Hospital Infection Society (HIS 2010)
    • Place of Presentation
      Liverpool, UK
    • Year and Date
      2010-10-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] ESBL active surveillance culture in patients rehospitalized from other facilities and nursing homes2010

    • Author(s)
      Kunishima H
    • Organizer
      7th International Conference of the Hospital Infection Society (HIS 2010)
    • Place of Presentation
      Liverpool, UK
    • Year and Date
      2010-10-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] Genetic analysis of extended-spectrum β-lactamase and/or AmpC β-lactamase producing Enterobacteriaceae and the piasmid-mediated quinolone resistance determinants in the Philippines2010

    • Author(s)
      Kanamori H
    • Organizer
      50th Interscience Conference on Antimicrobial Agents and Chemotherapy (ICCAC)
    • Place of Presentation
      Boston, USA
    • Year and Date
      2010-09-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] Detection of extended-spectrum β-lactamases using boronic acid in clinical isolates of Enterobacter species in Japan2010

    • Author(s)
      Yano H
    • Organizer
      50th Interscience Conference on Antimicrobial Agents and Chemotherapy (ICCAC).
    • Place of Presentation
      Boston, USA
    • Year and Date
      2010-09-13
    • Related Report
      2010 Annual Research Report
  • [Presentation] Predominance and genetic diversity of extended-spectrum β-lactamases produced by clinical isolates of Escherichia coh in Japan2010

    • Author(s)
      Kuroda H
    • Organizer
      50th Interscience Conference on Antimicrobial Agents and Chemotherapy (ICCAC)
    • Place of Presentation
      Boston, USA
    • Year and Date
      2010-09-13
    • Related Report
      2010 Annual Research Report
  • [Presentation] High prevalence of extended-spectrum β-lactamases and/or AmpC β-lactamases in clinical isolates of Citrobacter species in Japan2010

    • Author(s)
      Kanamori H
    • Organizer
      50th Interscience Conference on Antimicrobial Agents and Chemotherapy (ICCAC)
    • Place of Presentation
      Boston, USA
    • Year and Date
      2010-09-13
    • Related Report
      2010 Annual Research Report
  • [Presentation] 種々の温度、湿度環境下におけるインフルエンザウイルスの経時的活性変化に関する研究2010

    • Author(s)
      堀亨
    • Organizer
      第59回日本耳鼻咽喉科学会東北地方連合会学術講演会
    • Place of Presentation
      秋田
    • Year and Date
      2010-07-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] Clinical Management of Drug-Resistant Pseudomonas aeruginosa2010

    • Author(s)
      Hirakata Y
    • Organizer
      13th Annual Congress of The Korean Society of Clinical Microbiology
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2010-07-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] 海外における薬剤耐性菌の現況2010

    • Author(s)
      矢野寿一
    • Organizer
      第58回日本化学療法学会総会学術講演会
    • Place of Presentation
      長崎
    • Year and Date
      2010-06-04
    • Related Report
      2010 Annual Research Report
  • [Presentation] 市中感染型MRSAの気道上皮培養細胞への侵入性に関する検討2010

    • Author(s)
      高山陽子
    • Organizer
      第58回日本化学療法学会総会学術講演会
    • Place of Presentation
      長崎
    • Year and Date
      2010-06-04
    • Related Report
      2010 Annual Research Report
  • [Presentation] フィリピンて分離された基質特異性拡張型β-ラクタマーセ(ESBL)産生クラム陰性桿菌の検討2010

    • Author(s)
      金森肇
    • Organizer
      第58回日本化学療法学会総会学術講演会
    • Place of Presentation
      長崎
    • Year and Date
      2010-06-03
    • Related Report
      2010 Annual Research Report
  • [Presentation] 咽頭より分離されたGyrAの85にアミノ酸置換をもつフルオロキノン耐性Streptococcus pyogenesの分子疫学的検討2010

    • Author(s)
      新井和明
    • Organizer
      第58回日本化学療法学会総会学術講演会
    • Place of Presentation
      長崎
    • Year and Date
      2010-06-03
    • Related Report
      2010 Annual Research Report
  • [Presentation] 臨床分離Acinetobacter baumannuの細胞侵入性に関する検討2010

    • Author(s)
      遠藤史郎
    • Organizer
      第58回日本化学療法学会総会学術講演会
    • Place of Presentation
      長崎
    • Year and Date
      2010-06-03
    • Related Report
      2010 Annual Research Report
  • [Book] 微生物検査のポイント.レジデントのための呼吸器診療マニュアル2011

    • Author(s)
      平潟洋一
    • Publisher
      医学書院
    • Related Report
      2011 Annual Research Report
  • [Book] 敗血症.今日の治療指針2011

    • Author(s)
      平潟洋一
    • Publisher
      医学書院
    • Related Report
      2011 Annual Research Report
  • [Book] 感染症専門医テキスト第1部解説編2011

    • Author(s)
      平潟洋一
    • Publisher
      南江堂
    • Related Report
      2011 Annual Research Report
  • [Book] 感染症専門医テキスト第II部ケーススタディ編2011

    • Author(s)
      平潟洋一
    • Publisher
      南江堂
    • Related Report
      2011 Annual Research Report
  • [Book] 感染症診療の基礎と臨床2010

    • Author(s)
      遠藤史郎
    • Total Pages
      4955
    • Publisher
      医薬シャーナル社
    • Related Report
      2010 Annual Research Report
  • [Book] 今日の診断指針20102010

    • Author(s)
      平潟洋一
    • Publisher
      医学書院
    • Related Report
      2010 Annual Research Report
  • [Book] 耳鼻咽喉科学用語解説集2010

    • Author(s)
      矢野寿一
    • Total Pages
      631
    • Publisher
      金芳堂
    • Related Report
      2010 Annual Research Report
  • [Book] 抗菌薬PK-PD実践テクニソク2010

    • Author(s)
      金森肇
    • Publisher
      南江堂
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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