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2009 Fiscal Year Annual Research Report

運動器再生医療を目指した多能性幹細胞から間葉系細胞への分化誘導シグナルの探索

Research Project

Project/Area Number 21659347
Research InstitutionThe University of Tokyo

Principal Investigator

中村 耕三  The University of Tokyo, 医学部附属病院, 教授 (60126133)

Co-Investigator(Kenkyū-buntansha) 松原 全宏  東京大学, 医学部附属病院, 助教 (40361498)
齋藤 琢  東京大学, 医学部附属病院, 特任助教 (30456107)
Keywords四肢機能再建学 / 幹細胞
Research Abstract

間葉系マーカーであるPRX1、PRX2の転写開始点近傍の配列を種間で解析し、保存率の高い近位3kbの配列をルシフェラーゼレポーターベクターに組み込み、未分化間葉系組織での発現が知られている複数の転写因子による活性化をルシフェラーゼアッセイにて検討したところ、PRX1、PRX2ともにNFkBシグナルの主な転写因子であるRELAによって強力に活性化された。またCREB/ATFファミリー分子はPRX1プロモーターを選択的に強力に活性化し、KLFファミリー分子はPRX2プロモーターを選択的に強力に活性化することが判明した。また我々が独自に樹立したマウスiPS細胞をレチノイン酸などを用いた古典的な手法で間葉系分化させたところ、PRX1、PRX2の発現は経時的に増加したが、これらの新たに同定された転写因子も同様に発現が増加していることが明らかとなった。次年度にこれらの転写因子群をES細胞・iPS細胞に導入すべく、アデノウイルスベクター、レトロウイルスベクター、レンチウイルスベクターを作成した。またこれらの転写因子群のPRX1、PRX2プロモーター上の応答領域を順次探索する作業を継続しており、年度末の時点で100bp未満のレベルまで絞り込むことができた。またこれらエンハンサーとは別に基本プロモーター領域の範囲も実験的に確認済みで、これらと蛍光蛋白を接合した蛍光レポーターカセットの作成も開始している。

  • Research Products

    (15 results)

All 2010 2009 Other

All Journal Article (12 results) (of which Peer Reviewed: 12 results) Presentation (1 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Aktl in murine chondrocytes controls cartilage calcification during endochondral ossification under physiologic and pathologic conditions2010

    • Author(s)
      Fukai A, Nakamura K, et al.
    • Journal Title

      Arthritis Rheum 62

      Pages: 826-36

    • Peer Reviewed
  • [Journal Article] The prevention of peritendinous adhesions by a phospholipid polymer hydrogel formed in situ by spontaneous intermolecular interactions.2010

    • Author(s)
      Ishiyama N, Nakamura K, et al.
    • Journal Title

      Biomaterials 31

      Pages: 4009-16

    • Peer Reviewed
  • [Journal Article] Mechanisms underlying catabolic and anabolic functions of parathyroid hormone on bone by combination of culture systems of mouse cells.2010

    • Author(s)
      Shinoda Y, Nakamura K, et al.
    • Journal Title

      J Cell Biochem 109

      Pages: 755-63

    • Peer Reviewed
  • [Journal Article] Predictors of residual symptoms in lower extremities after decompression surgery on lumbar spinal stenosis.2010

    • Author(s)
      Hara N, Nakamura K, et al.
    • Journal Title

      Eur Spine J (E pub)

    • Peer Reviewed
  • [Journal Article] Correlation between pyramidal signs and the severity of cervical myelopathy.2010

    • Author(s)
      Chikuda H, Nakamura K, et al.
    • Journal Title

      Eur Spine J (E pub)

    • Peer Reviewed
  • [Journal Article] Screening of chondrogenic factors with a real-time fluorescence-monitoring cell line ATDC5-C2ER : identification of sorting nexin 19 as a novel factor.2009

    • Author(s)
      Kan A, Nakamura K, et al.
    • Journal Title

      Arthritis Rheum 60

      Pages: 3314-23

    • Peer Reviewed
  • [Journal Article] Anti-apoptotic molecule Bcl-2 regulates the differentiation, activation, and survival of both osteoblasts and osteoclasts2009

    • Author(s)
      Nagase Y, Nakamura K, et al.
    • Journal Title

      J Biol Chem 284

      Pages: 36659-69

    • Peer Reviewed
  • [Journal Article] The antiapoptotic protein Bcl-xL negatively regulates the bone-resorbing activity of osteoclasts in mice2009

    • Author(s)
      Iwasawa M, Nakamura K, et al.
    • Journal Title

      J Clin Invest 119

      Pages: 3149-59

    • Peer Reviewed
  • [Journal Article] Orphan receptor tyrosine kinase ROR2 as a potential therapeutic target for osteosarcoma.2009

    • Author(s)
      Morioka K, Nakamura K, et al.
    • Journal Title

      Cancer Sci 100

      Pages: 1227-33

    • Peer Reviewed
  • [Journal Article] Sleep apnea in rheumatoid arthritis patients with occipitocervical lesions : the prevalence and associated radiographic features.2009

    • Author(s)
      Shoda N, Nakamura K, et al.
    • Journal Title

      Eur Spine J 18

      Pages: 905-10

    • Peer Reviewed
  • [Journal Article] Diameter, length, and direction of pedicle screws for scolic tic spine : analysis by multiplanar reconstruction of computed tomography2009

    • Author(s)
      Takeshita K, Nakamura K, et al.
    • Journal Title

      Spine 34

      Pages: 798-803

    • Peer Reviewed
  • [Journal Article] Wear resistance of artificial hip joints with poly(2-methacryloyloxyethyl phosphorylcholine)grafted polyethylene : comparisons with the effect of polyethylene cross-linking and ceramic femoral heads.2009

    • Author(s)
      Moro T, Nakamura K, et al.
    • Journal Title

      Biomaterials 30

      Pages: 2995-3001

    • Peer Reviewed
  • [Presentation] Comprehensive control of endochondral ossification by HIF-2α during skeleta growth and osteoarthritis progression.2009

    • Author(s)
      Saito T, Nakamura K, et al.
    • Organizer
      31th annual meeting of the American Society for Bone and Mineral Research(ASBMR).
    • Place of Presentation
      Denver, CO, USA
    • Year and Date
      2009-09-19
  • [Book] 新国民病ロコモティブシンドローム長寿社会は警告する2010

    • Author(s)
      中村耕三
    • Total Pages
      193
    • Publisher
      NHK出版生活人新書315
  • [Remarks]

    • URL

      http://www.h.u-tokyo.ac.jp/ortho/

URL: 

Published: 2011-06-16   Modified: 2016-04-21  

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