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2010 Fiscal Year Annual Research Report

低酸素応答転写制御ネットワークの網羅的解析による慢性腎臓病の病態生理の解明

Research Project

Project/Area Number 21390260
Research InstitutionThe University of Tokyo

Principal Investigator

南学 正臣  東京大学, 医学部附属病院, 講師 (90311620)

Co-Investigator(Kenkyū-buntansha) 和田 健彦  東京大学, 医学部附属病院, 助教 (90447409)
稲城 玲子  東京大学, 医学部附属病院, 特任研究員 (50232509)
田中 哲洋  東京大学, 保健健康推進本部, 助教 (90508079)
Keywords虚血 / 慢性腎臓病 / 腎不全 / 低酸素
Research Abstract

本研究の目的は低酸素応答という重要な個別生命現象に焦点を絞って転写制御ネットワークの網羅的解析を行い、得られた知見を腎臓病学の病態生理に応用するものである。
前年度から引き続いて行っている培養細胞を用いたChIPシークエンスによるHIFの転写制御ネットワークの研究について、条件設定の最適化を行い、当初HIF-1結合遺伝子として同定されたものが122遺伝子だったものを、567遺伝子に増やすことができた。同時に、低酸素状態においてEIF-1が正常に発現している細胞とHIF-1をノックダウンした細胞におけるmicroarrayを施行し、293遺伝子がHIF-1依存性に発現が変化することを見出した。これらに共通するものとして47遺伝子を同定し、これをHIF-1による直接の低酸素制御が確実な遺伝子とした。47遺伝子の中には、従来からHIF-1による調節が知られていたものに加え、従来HIFによる調節が知られていなかった新規遺伝子があり、それらについてはその機能の検証を進めている。例えば、GeneAについては、GeoProfileにて腎細胞癌における発現の亢進が再現性をもって報告されており、tissue arrayを施行することで腎細胞癌における蛋白レベルでの発現亢進を確認することが出来た。
HIF-2については未だChIPシークエンスに使用可能な質の高い抗体が得られず、新しいHIF-2の特異抗体の作成を昆虫細胞の系を用いて継続して行っている。

  • Research Products

    (21 results)

All 2011 2010

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (13 results) Book (1 results)

  • [Journal Article] Cytoglobin, a novel member of the globin family, protects kidney fibroblasts against oxidative stress under ischemic conditions.2011

    • Author(s)
      Nishi, et al.
    • Journal Title

      Am J Pathol

      Volume: 178 Pages: 128-139

    • Peer Reviewed
  • [Journal Article] Cytoglobin, a novel globin, plays an anti-fibrotic role in the kidney.2010

    • Author(s)
      Mimura, et al.
    • Journal Title

      Am J Physiol Renal Physiol

      Volume: 299 Pages: 1120-1133

    • Peer Reviewed
  • [Journal Article] Uremia induces abnormal oxygen consumption in tubules and aggravates chronic hypoxia of the kidney via oxidative stress2010

    • Author(s)
      Palm, et al.
    • Journal Title

      Am J Physiol Renal Physiol

      Volume: 299 Pages: F380-F386

    • Peer Reviewed
  • [Journal Article] Indoxyl sulfate inhibits proliferation of human proximal tubular cells via endonlasmic reticulum stress.2010

    • Author(s)
      Kawakami, et al.
    • Journal Title

      Am J Physiol Renal Physiol

      Volume: 299 Pages: F568-F576

    • Peer Reviewed
  • [Journal Article] Body weight control by a high-carbohydrate/low-fat diet slows the progression of diabetic kidney damage in an obese, hypertensive, type 2 diabetic rat model.2010

    • Author(s)
      Ohtomo, et al.
    • Journal Title

      J Obesity

      Volume: pii Pages: 136502

    • Peer Reviewed
  • [Journal Article] The suffocating kidney : Tubulointerstitial hypoxia in the pnthogenesis of end-stage kidney disease.2010

    • Author(s)
      Mimura, Nangaku
    • Journal Title

      Nat Rev Nephrol

      Volume: 6 Pages: 667-678

    • Peer Reviewed
  • [Journal Article] The role of hypoxia, increased oxygen consumption, and hypoxia-inducible factor-1 alpha in progression of chronic kidney disease.2010

    • Author(s)
      Tanaka, Nangaku
    • Journal Title

      Curr Op Nephrol Hypertens

      Volume: 19 Pages: 43-50

    • Peer Reviewed
  • [Presentation] Glyoxalase I Prevent Age-Related Aortic Medial Thickening by Reducing TGF-B and CTGF Signals Independent of Blood Pressure.2010

    • Author(s)
      Ikeda, et al.
    • Organizer
      The 43rd Annual Meeting of the American Society of Nephrology
    • Place of Presentation
      Denver, U.S.A.
    • Year and Date
      2010-11-20
  • [Presentation] Endoplasmic Reticulum Stress Disturbs Erythropoietin Gene Expression in a HIF-Dependent Manner.2010

    • Author(s)
      Chiang, et al.
    • Organizer
      The 43rd Annual Meeting of the American Society of Nephrology
    • Place of Presentation
      Denver, U.S.A.
    • Year and Date
      2010-11-19
  • [Presentation] Elucidation of the Anti-Fibrotic Mechanism of a Novel HIF-Regulated Globin, Cytoglobin, with Molecular Genetics.2010

    • Author(s)
      Mimura, et al.
    • Organizer
      The 43rd Annual Meeting of the American Society of Nephrology
    • Place of Presentation
      Denver, U.S.A.
    • Year and Date
      2010-11-19
  • [Presentation] Impact of Anthracyclines on Hypoxia Response in Tubular Epithelial Cells.2010

    • Author(s)
      Tanaka, et al.
    • Organizer
      The 43rd Annual Meeting of the American Society of Nephrology
    • Place of Presentation
      Denver, U.S.A.
    • Year and Date
      2010-11-19
  • [Presentation] MicroRNA Profiles of Tubular Cells under Hypoxia-Reoxyge nation and Endonlasmic Reticulum Stress.2010

    • Author(s)
      Muratsu, et al.
    • Organizer
      The 43rd Annual Meeting of the American Society of Nephrology
    • Place of Presentation
      Denver, U.S.A.
    • Year and Date
      2010-11-19
  • [Presentation] Role of carbonyl stress in renal senescence.2010

    • Author(s)
      Nangaku, et al.
    • Organizer
      FASEB summer research conference
    • Place of Presentation
      Otsu, Japan
    • Year and Date
      2010-10-06
  • [Presentation] Defensive mechanisms against fibrosis in the hypoxic kidnev.2010

    • Author(s)
      Nangaku (invited)
    • Organizer
      ISN-NEXUS
    • Place of Presentation
      Geneva, Switzerland
    • Year and Date
      2010-07-01
  • [Presentation] Role of hypoxia in chronic kidney disease.2010

    • Author(s)
      Nangaku (invited)
    • Organizer
      FASEB summer research conference
    • Place of Presentation
      Saxtons River, Vermont U.S.A.
    • Year and Date
      2010-06-29
  • [Presentation] HIF and renal disease.2010

    • Author(s)
      Nangaku (invited)
    • Organizer
      12^<th> Asian Pacific Congress of Nephrology
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2010-06-06
  • [Presentation] Identification of novel targets of hypoxia-responsive pathways.2010

    • Author(s)
      Nangaku (invited)
    • Organizer
      ISN-NEXUS
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2010-04-17
  • [Presentation] Impaired glomerular healing with persistent glomerular inflammation in streptozotocin-induced diabetic nephropathy.2010

    • Author(s)
      Takano, et al.
    • Organizer
      ISN-NEXUS
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2010-04-17
  • [Presentation] Genome-wide analysis of hypoxic inducible factor 1 binding sites in human endothelial cells under hypoxia.2010

    • Author(s)
      Mimura, et al.
    • Organizer
      ISN-NEXUS
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2010-04-16
  • [Presentation] The evaluation of renal senescence and its retardation by the reduction of carbonyl stress.2010

    • Author(s)
      Ikeda, et al.
    • Organizer
      ISN-NEXUS
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2010-04-16
  • [Book] Oxidative Stress in Applied Basic Research and Clinical Practice : Studies on Renal Disorders.2011

    • Author(s)
      Miyata, Eckardt, Nangaku
    • Publisher
      Humana Press

URL: 

Published: 2012-07-19  

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