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2011 Fiscal Year Annual Research Report

アパタイトナノキャリアを用いた胃癌のマイクロRNA治療の開発

Research Project

Project/Area Number 22300169
Research InstitutionKeio University

Principal Investigator

鈴木 秀和  慶應義塾大学, 医学部, 准教授 (70255454)

Co-Investigator(Kenkyū-buntansha) 斎藤 義正  慶應義塾大学, 薬学部, 准教授 (90360114)
赤池 敏宏  東京工業大学, 生命理工学部, 教授 (30101207)
金井 弥栄  国立がん研究センター研究所, 病理部, 部長 (00260315)
大西 保行  慶應義塾大学, 実験動物中央研究所, 研究員 (70201382)
KeywordsマイクロRNA / アパタイトナノキャリア / 癌遺伝子 / 胃癌 / 担癌動物 / 細胞内導入
Research Abstract

胃癌組織で発現低下するmicroRNA-375は、胃癌細胞株MKN74に導入することで、直接的標的であるPDK1の翻訳を抑制し、PI3K-Akt系を抑制し、細胞増殖を抑制することが報告されており、発癌抑制に関係すると考えられている。本研究では、このmicroRNA-375導入胃癌細胞MKN74では、シスプラチンのIC_<50>がcontrolの60%に減少し、アポトーシスが促進された。しかし、PDK1を抑制するsiPDK1導入ではシスプラチン感受性は変化せず、異なる標的を介して、感受性を変化させると考えられた。microRNA-375は、胃癌抑制だけでなく、シスプラチンの抗癌作用も増強することが示された。別系で、食道扁平上皮細胞株HET-1AにCDX2発現ベクター導入細胞(HET1A+Cdx2)とmockベクター導入細胞(HET1A+LacZ)を作製し、コール酸曝露下に、細胞増殖能、CDX2蛋白量の変化、及びCDX2分解を抑制するp27Kip1、とその標的のmicroRNA-221/222の発現を比較した。コール酸曝露でHET1A+LacZで細胞増殖は抑制されたが、HET1A+Cdx2では促進され、HET1A+Cdx2中で、CDX2量はコール酸濃度依存性に減少、microRNA-221/222の発現は上昇、p27Kip1発現は低下した。胆汁酸は、microRNA-221/221の発現を上昇させ、標的であるp27Kip1を減少させ、proteasome分解系を介したCDX2分解を促進すると考えられた。また、食道腺癌細胞OE33でのアパタイトナノキャリアを用いたmicroRNA-221/221機能阻害でもCDX2量の上昇とともに細胞増殖が抑制された。特異的阻害で細胞増殖が抑制されたことから、microRNA-221/221は、食道胃接合部癌の新たな分子標的になりうると考えられた。

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

細胞による反応性の変化、miR単独での抗腫瘍効果が、比較的弱いために、化学療法(シスプラチンなど)との併用による効果の検討を行うこととしたため。

Strategy for Future Research Activity

マイクロRNA治療については、その標的特異性から、個々の癌腫に対するテーラーメード医療としての応用が期待できる。今回、低細胞障害性の細胞内核酸導入法として、アパタイトナノキャリアを用いることで、in vivoにおいてもマイクロRNAを低侵襲性に導入することが期待できた。しかし、個々のマイクロRNAの効果は、甚大ではなく、post-translational modifierとしての役割を期待して、従来の化学療法を補完するものとして、応用すべきと考える。現在、開発中の胃癌の担癌動物に加え、胃食道接合部癌としての食道腺癌の担癌動物などでも、アパタイトナノキャリア装填型マイクロRNAあるいは抗マイクロRNAオリゴヌクレオチドの効果を検証する予定である。

  • Research Products

    (30 results)

All 2012 2011

All Journal Article (23 results) (of which Peer Reviewed: 23 results) Presentation (6 results) Book (1 results)

  • [Journal Article] Roles of oxidative stress in stomach disorders2012

    • Author(s)
      Suzuki, H., et al
    • Journal Title

      J.Clin.Biochem.Nutr.

      Volume: 50(1) Pages: 35-39

    • DOI

      10.3164/jcbn.11-115SR

    • Peer Reviewed
  • [Journal Article] Reduced ghrelin production induced anorexia after rat gastric ischemia and reperfusion2012

    • Author(s)
      Mogami, S., Suzuki, H., et al
    • Journal Title

      Am.J.Physiol., Gastrointest.Liver Physiol.

      Volume: 302(3) Pages: G359-64

    • DOI

      10.1152/ajpgi.00297.2011

    • Peer Reviewed
  • [Journal Article] Efficacy of sitafloxacin-based rescue therapy for Helicobacter pylori after failures of first- and second-line therapies2012

    • Author(s)
      Matsuzaki, J., Suzuki, H., et al
    • Journal Title

      Antimicrob.Agent Chemother.

      Volume: 56(3) Pages: 1643-1645

    • DOI

      10.1111/j.1365-2982.2011.01859.x

    • Peer Reviewed
  • [Journal Article] Classification of functional dyspepsia based on concomitant bowel symptoms2012

    • Author(s)
      Matsuzaki, J., Suzuki, H., et al
    • Journal Title

      Neurogastroenterol.Motil.

      Volume: 24(4) Pages: 325-e164

    • DOI

      10.1111/j.1365-2982.2011.01859.x

    • Peer Reviewed
  • [Journal Article] FecAl, a bacterial iron transporter, determines the survival of Helicobacter pylori in the-stomach2012

    • Author(s)
      Tsugawa, H., Suzuki, H., et al
    • Journal Title

      Free Radic.Biol.Med.

      Volume: 52(6) Pages: 1013-1010

    • DOI

      10.1016/j.freeradbiomed.2011.12.011

    • Peer Reviewed
  • [Journal Article] Effects of β-(1,3-1,6)-D-glucan on irritable bowel syndrome-related colonic hypersensitivity2012

    • Author(s)
      Asano, T., Suzuki, H., et al
    • Journal Title

      Biochem.Biophys.Res.Com.

      Volume: 420(2) Pages: 444-449

    • DOI

      10.1016/j.bbrc.2012.03.015

    • Peer Reviewed
  • [Journal Article] Enhanced gastric ghrelin production and secretion in rats with gastricoutlet obstruction2012

    • Author(s)
      Iwasaki, E., Suzuki, H., et al
    • Journal Title

      Dig.Dis.Sci.

      Volume: 57(4) Pages: 858-64

    • DOI

      10.1007/s10620-011-1953-y

    • Peer Reviewed
  • [Journal Article] Capsule endoscopy assists in the complete deworming of parasites2012

    • Author(s)
      Kobayashi, S., Suzuki, H., et al
    • Journal Title

      J.Gastroenterol.Hepatol.

      Volume: (in press)

    • Peer Reviewed
  • [Journal Article] Minimally invasive surgery for esophageal epiphrenic diverticulum-the results of our experience and 133 patients in 25 published series2012

    • Author(s)
      Hirano, Y., Suzuki, H., et al
    • Journal Title

      Surgery Today

      Volume: (in press)

    • Peer Reviewed
  • [Journal Article] Molecular approaches and modem clinical strategies for the management of Helicobacter pylori infection in Japan2012

    • Author(s)
      Suzuki, H., et al
    • Journal Title

      Keio J.Med.

      Volume: (in press)

    • Peer Reviewed
  • [Journal Article] Ghrelin and oxidative stress in gastrointestinal tract2011

    • Author(s)
      Suzuki, H., et al
    • Journal Title

      J.Clin.Biochem.Nutr.

      Volume: 48(2) Pages: 122-125

    • DOI

      10.3164/jcbn.10-16GFR

    • Peer Reviewed
  • [Journal Article] Can Helicobacter pylori-associated dyspepsia be categorized as functional dyspepsia?2011

    • Author(s)
      Suzuki, H., et al
    • Journal Title

      J.Gastroenterol.Hepatol.

      Volume: 26(s3) Pages: 42-45

    • DOI

      10.1111/j.1440-1746.2011.06629.x

    • Peer Reviewed
  • [Journal Article] What is the difference between Helicobacter pylori-associated dyspepsia and functional dyspepsia?2011

    • Author(s)
      Suzuki, H., et al
    • Journal Title

      J.Neurogastroenterol.Motil.

      Volume: 17(2) Pages: 124-130

    • DOI

      10.5056/jnm.2011.17.2.124

    • Peer Reviewed
  • [Journal Article] Enhancement of amoxicillin resistance after unsuccessful Helicobacter pylori eradication2011

    • Author(s)
      Nishizawa, T., Suzuki, H., et al
    • Journal Title

      Antimicrob.Agent Chemother.

      Volume: 55(6) Pages: 3012-3014

    • DOI

      10.1128/AAC.00188-11

    • Peer Reviewed
  • [Journal Article] Proton pump inhibitors for the treatment of functional dyspepsia2011

    • Author(s)
      Suzuki, H., et al
    • Journal Title

      Ther.Adv.Gastroenterol.

      Volume: 4(4) Pages: 219-226

    • DOI

      10.1177/1756283X11398735

    • Peer Reviewed
  • [Journal Article] Extragastric manifestations of Helicobacter pylori infection2011

    • Author(s)
      Suzuki, H., et al
    • Journal Title

      Helicobacter

      Volume: 16(S1) Pages: 65-69

    • DOI

      10.1111/j.1523-5378.2011.00883.x

    • Peer Reviewed
  • [Journal Article] Trainee participation during colonoscopy adversely affects the rates of polyp and adenoma detection2011

    • Author(s)
      Nishizawa, T., Suzuki, H., et al
    • Journal Title

      Digestion

      Volume: 84(3) Pages: 245-246

    • DOI

      10.1159/000330736

    • Peer Reviewed
  • [Journal Article] Bovine antibody-based oral immunotherapy for reduction of intragastric Helicobacter pylori colonization : a randomized clinical trial2011

    • Author(s)
      den Hoed, C.M., Suzuki, H., et al
    • Journal Title

      Can.J.Gastroenterol.

      Volume: 25(4) Pages: 207-213

    • Peer Reviewed
  • [Journal Article] Effect of lansoprazole versus roxatidine on prevention of bleeding and ulcer healing after endoscopic submucosal dissection for superficial gastric neoplasia2011

    • Author(s)
      Imaeda, H., Suzuki, H., et al
    • Journal Title

      J.Gastroenterol.

      Volume: 46(11) Pages: 1267-1272

    • DOI

      10.1007/s00535-011-0447-1

    • Peer Reviewed
  • [Journal Article] Helicobacter pylori Resistance to Rifabutin in the last 7 years2011

    • Author(s)
      Nishizawa, T., Suzuki, H., et al
    • Journal Title

      Antimicrob.Agent Chemother.

      Volume: 55(11) Pages: 5374-5375

    • DOI

      10.1128/AAC.05437-11

    • Peer Reviewed
  • [Journal Article] Metronidazole-based quadruple versus standard triple therapy : which is better as first-line therapy for Helicobacter pylori eradication?2011

    • Author(s)
      Suzuki, H., et al
    • Journal Title

      Exper Rev.Clin.Pharmacol.

      Volume: 4(5) Pages: 579-582

    • DOI

      10.1586/ecp.11.34

    • Peer Reviewed
  • [Journal Article] Overlap syndrome of functional dyspepsia and irritable bowel syndrome-are both diseases mutually exclusive?-2011

    • Author(s)
      Suzuki, H., Hibi, T.
    • Journal Title

      J.Neurogastroenterol.Motil.

      Volume: 17(4) Pages: 360-365

    • DOI

      10.5056/jnm.2011.17.4.360

    • Peer Reviewed
  • [Journal Article] MicroRNAs in hepatobiliary and pancreatic cancers2011

    • Author(s)
      Saito, Y., Suzuki, H., et al
    • Journal Title

      Front.Gene.

      Volume: 2 Pages: 66

    • DOI

      10.3389/fgene.2011.00066.

    • Peer Reviewed
  • [Presentation] Frequent overlap of overactive bladder with functional dyspepsia and/or irritable bowel syndrome2011

    • Author(s)
      Suzuki, H., et al
    • Organizer
      The American College of Gastroenterology Annual Scientific Meeting (ACG2011)
    • Place of Presentation
      Washington DC, USA
    • Year and Date
      2011-10-30
  • [Presentation] GerdQ is superior for the evaluation of age-dependent symptom aggravation and for the reflection of patients' satisfaction with prescribed medications to the carlsson-dent questionnaire2011

    • Author(s)
      Suzuki, H., et al
    • Organizer
      19th United European Gastroenterology Week 2011
    • Place of Presentation
      Stockholm, Sweden
    • Year and Date
      2011-10-24
  • [Presentation] Are functional dyspepsia and irritable bowel syndrome mutually exclusive?2011

    • Author(s)
      Suzuki, H.
    • Organizer
      The 12th Recent update of Neurogastroenterology & Motility Symposium
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2011-06-11
  • [Presentation] H.pyloriの病原・薬剤耐性獲得機序-慢性持続性感染による宿主応答から-2011

    • Author(s)
      鈴木秀和, 津川仁, 日比紀文
    • Organizer
      第97回日本消化器病学会総会
    • Place of Presentation
      京王プラザホテル(東京都)
    • Year and Date
      2011-05-14
  • [Presentation] Activation of the tumor suppressor microRNA-29c by the selective cyclooxygenase-2 inhibitor, celecoxib in human gastric cancer2011

    • Author(s)
      Suzuki, H., et al
    • Organizer
      AGA Research Forum "Targeted therapy and GI cancers" Digestive Disease Week 2011
    • Place of Presentation
      Chicago, USA
    • Year and Date
      2011-05-09
  • [Presentation] Enhanced expression of microRNA-142-5p and microRNA-155 and suppressed expression of TP53INP1 would be novel molecular biomarkers for gastric mucosa-associated lymphoid tissue (MALT) lymphoma, resistant to H.pylori eradication2011

    • Author(s)
      Suzuki, H., et al
    • Organizer
      AGA Topic Forum "Biomarkers in GI cancers" Digestive Disease Week 2011
    • Place of Presentation
      Chicago, USA
    • Year and Date
      2011-05-07
  • [Book] ヘリコバクターピロリ感染症の徹底検証2012

    • Author(s)
      鈴木秀和編集
    • Total Pages
      93
    • Publisher
      ライフ・サイエンス社

URL: 

Published: 2013-06-26  

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