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細胞質内HDAC6-NACC1制御による新規がん治療戦略の開発研究

Research Project

Project/Area Number 21659089
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Human pathology
Research InstitutionIwate Medical University

Principal Investigator

前沢 千早  岩手医科大学, 医学部, 教授 (10326647)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2010: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2009: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsNACC1 / HDAC6 / 細胞骨格 / 微小管 / 化学療法
Research Abstract

近年、histone deacetylase (HDAC) familyのHDAC6が、がんの発生・進呈、あるいは治療の標的分子として注目を集めている。他のHDACsが核内でクロマチン修飾機構に働くのに対して、HDAC6は細胞質内で標的蛋白の脱アセチル化を介して、(1)細胞骨格分子の再構成、(2)aggresomeにおける異常蛋白質/RNAの運搬・refolding/degradationの機構に関与している。本研究課題では、NACC1-HDAC6システム系の詳細な解析により、以下のことを明らかにしたい。
1) NACC1-HDAC6の機能発現に係る、sumoylation/acetylationスイッチ機構の解明
2) NACC1-HDAC6系の抑制による、ストレス性蛋白誘導抑制型の新規がん治療法の開発
結果:NACC1-HDAC6の相互作用を,明らかにしNACC1のK167およびSUMO interacting motifがnuclear bodyの形成に重要であることを明らかにした.しかしこれらの結合様式はHDAC6とNACC1の相互作用には影響を与えなかった.
3) NACC1の発現抑制は細胞運動能・浸潤能,細胞増殖に影響を与えた.これらの現象は,HDAC6の脱アセチル化作用を介して生じているものであり,これらの相互作用の阻害剤スクリーニングをHDAC6-EGFP, NACC1-cherryのdouble transfectantを用いて行った結果6種類の候補薬物のスクリーニングに成功した.
4) この内1個では,1.83pMという極めて低濃度で浸潤・転移能を50%まで抑えることのできる運動抑制物質を同定した.

Report

(2 results)
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (7 results)

All 2011 2010 2009

All Journal Article (7 results) (of which Peer Reviewed: 7 results)

  • [Journal Article] Nucleus accumbens-associated 1 contributes to cortactin deacetylation and augments the migration of melanoma cells.2011

    • Author(s)
      Tsunoda K
    • Journal Title

      J Invest Dermatol

      Volume: 131(In press)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Immunohistochemical Study of HER2 and TUBB3 Proteins in Extramammary Paget Disease.2011

    • Author(s)
      Miyamoto A
    • Journal Title

      Am J Dermatopathol

      Volume: 33(In press)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Down-regulation of microRNA-211 is involved in expression of preferentially expressed antigen of melanoma (PRAME) in melanoma cells2011

    • Author(s)
      Sakurai E
    • Journal Title

      Int J Oncol

      Volume: 38(In press)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Expression profiles of nestin in vascular smooth muscle cells in vivo and in vitro.2010

    • Author(s)
      Oikawa H, Hayashi K, Maesawa C, Masuda T, Sobue K.
    • Journal Title

      Exp Cell Res 316

      Pages: 940-950

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spontaneous [Ca2+]i oscillations in G1/S phase-synchronized cells.2009

    • Author(s)
      Russa AD, Maesawa C, Satoh Y.
    • Journal Title

      J Electron Microsc 58

      Pages: 321-329

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Differential microRNA expression between bone marrow side population cells and hepatocytes in adult mice2009

    • Author(s)
      Nagata Y, Maesawa C, Tada H, Takikawa Y, Yashima-Abo A, Masuda T.
    • Journal Title

      Int J Mol Med 24

      Pages: 35-43

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DNA hypomethylation at the CpG island is involved in aberrant expression of the L1 cell adhesion molecule gene in colorectal cancer.2009

    • Author(s)
      Kato K, Maesawa C, Itabashi T, Fujisawa K, Otsuka K, Kanno S, Tada H, Tatemichi Y, Kotani K, Oikawa H, Sugai T, Wakabayashi G, Masuda T.
    • Journal Title

      Int J Oncol 35

      Pages: 467-476

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed

URL: 

Published: 2009-04-01   Modified: 2016-04-21  

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