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2008 Fiscal Year Annual Research Report

糸球体上皮細胞スリット膜保護による新規蛋白尿治療法の開発

Research Project

Project/Area Number 20590950
Research InstitutionNiigata University

Principal Investigator

河内 裕  Niigata University, 医歯学系, 教授 (60242400)

Keywords蛋白尿 / 糸球体上皮細胞 / スリット膜 / ARB
Research Abstract

蛋白尿に対する新規治療法開発のターゲット分子を特定するための研究を進めた。
平成20年度は(1)スリット膜関連分子群、(2)シナプス小胞関連分子群、(3)アンジオテンシン作用を制御する分子群、(4)糸球体上皮細胞の形態維持に関わる細胞膜分子群について、比較的予後の良いネフローゼ症候群の病態である微小変化型ネフローゼ症候群のモデル(PAN腎症並びにスリット膜障害モデル)、予後の悪い病態である巣状糸球体硬化症モデル(ADR腎症)における発現動態を詳細に解析し、比較検討した。
(I)スリット膜関連分子であるNeph1は糸球体上皮細胞障害の早期マーカーとして有用であること、nephrinと乖離したNeph1量をモニターすることにより病態の予後を予測できること(Am J Physiol Renal 295 ; F1376-F1387, 2008にて報告)を明らかにした。
(II)新規治療法の開発、予後判定のための新規診断法の開発のターゲット分子として(1)シナプス小胞関連分子とドッキングする糸球体上皮細胞膜表面分子、(2)糸球体上皮細胞の糖鎖関連分子(ポドプラニン)の2つの分子を特定した。シナプス小胞関連分子が尿中の病態マーカーとして有用であること、ポドプラニンは糸球体上皮細胞表面全周に発現が見られるが、側部、底部に発現するポドプラニンが糸球体上皮細胞の障害マーカーとして有用であること(平成20年の米国腎臓学会(J Am Soc Nephrol 19 : 191A, 2008)で報告)などを明らかにした。

  • Research Products

    (17 results)

All 2009 2008 Other

All Journal Article (13 results) (of which Peer Reviewed: 13 results) Presentation (2 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Active vitamin D and its analogue, 22-oxacalcitriol, ameliorate puromycin aminonucleoside-induced nephrosis in rats.2009

    • Author(s)
      Matsui I
    • Journal Title

      Nephrol Dial Transplant (印刷中)

    • Peer Reviewed
  • [Journal Article] Slit diaphragm dysfunction in proteinuric states : identification of novel therapeutic targets for nephrotic syndrome2009

    • Author(s)
      Kawachi H
    • Journal Title

      Clin Exp Nephrol (印刷中)

    • Peer Reviewed
  • [Journal Article] Angiotensin II receptor blockade inhibits acute glomerular injuries with the alteration of receptor expression2009

    • Author(s)
      Mii A
    • Journal Title

      Lab Invest 89

      Pages: 164-177

    • Peer Reviewed
  • [Journal Article] Activated macrophages down-regulate podocyte nephrin and podocin expression via stress-activated protein kinases.2008

    • Author(s)
      Ikezumi Y
    • Journal Title

      Biochem Biophys Res Commun 28 : 376

      Pages: 706-711

    • Peer Reviewed
  • [Journal Article] Dissociation of NEPH1 from nephrin is involved in development of a rat model of focal segmental glomerulosclerosis.2008

    • Author(s)
      Otaki Y
    • Journal Title

      Am J Physiol Renal physiol 295

      Pages: 1376-1387

    • Peer Reviewed
  • [Journal Article] Selective loss of podoplanin protein expression accompanies proteinuria and precedes alterations in podocyte morphology in a spontaneous proteinuric rat model.2008

    • Author(s)
      Koop K
    • Journal Title

      Am J Physiol 173

      Pages: 315-326

    • Peer Reviewed
  • [Journal Article] IFN-inducible protein 10(CXCL1O)regulates tubular cell proliferation in renal ischemia-reperfusion injury.2008

    • Author(s)
      Furuichi K
    • Journal Title

      Nephron Exp Nephrol 109

      Pages: 29-38

    • Peer Reviewed
  • [Journal Article] Suppressive activity of pemirolast potassium, an antiallergic drug, on glomerulonephritis. Studies in glomerulonephritis model rats and in patients with chronic glomerulonephritis concurrently affected by allergic rhinitis.2008

    • Author(s)
      Gohda T
    • Journal Title

      Arzneimittelforschung 58

      Pages: 18-23

    • Peer Reviewed
  • [Journal Article] The mTOR inhibitor everolimus attenuates the time course of chronic anti-Thy1 nephritis in the rat.2008

    • Author(s)
      Wittmann S
    • Journal Title

      Nephron Exp Nephrol 108

      Pages: 45-56

    • Peer Reviewed
  • [Journal Article] Decreased tyrosine phosphorylation of nephrin in rat and human nephrosis.2008

    • Author(s)
      Uchida K
    • Journal Title

      Kidney Int 73

      Pages: 926-932

    • Peer Reviewed
  • [Journal Article] Rosuvastatin is additive to high-dose candesartan in slowing progression of experimental mesangioproliferative glomerulosclerosis.2008

    • Author(s)
      Kramer S
    • Journal Title

      Am J Physiol Renal physiol 294

      Pages: 801-811

    • Peer Reviewed
  • [Journal Article] Low-dose mTOR inhibition by rapamycin attenuates progression in anti-thy1-induced chronic glomerulosclerosis of the rat.2008

    • Author(s)
      Kramer S
    • Journal Title

      Am J Physiol Renal physiol 294

      Pages: 440-449

    • Peer Reviewed
  • [Journal Article] Eplerenone potentiates the antiproteinuric effects of enala pril in experimental nephrotic syndrome.2008

    • Author(s)
      Nakhoul F
    • Journal Title

      Am J Physiol Renal physiol 294

      Pages: 628-637

    • Peer Reviewed
  • [Presentation] Podoplanin was expressed on both apical and basal surfaces of podocyte, and the basal podoplanin plays a role in maintenance of not only the foot process structure but also the barrier function of glomerular capillary wall.2008

    • Author(s)
      Suzuki K
    • Organizer
      米国腎臓学会
    • Place of Presentation
      米国フィラデルフィア
    • Year and Date
      2008-11-06
  • [Presentation] An Adhesion Molecule Ninjurin-II Is Expressed in the Podocyte and Its Expression Is Altered in Podocyte with Slit Diaphragm Dysfunction2008

    • Author(s)
      Han GD
    • Organizer
      米国腎臓学会
    • Place of Presentation
      米国フィラデルフィア
    • Year and Date
      2008-11-06
  • [Book] 専門医のための腎臓病学2009

    • Author(s)
      河内 裕
    • Publisher
      医学書院(印刷中)
  • [Remarks]

    • URL

      http://www.med.niigata-u.ac.jp/nim/welcomej.html

URL: 

Published: 2010-06-11   Modified: 2016-04-21  

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