• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

PPAR gamma-mediated role of cyclin-dependent kinase 5 in the pathogenesis of proliferative diabetic retinopathy

Research Project

Project/Area Number 16K11288
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Ophthalmology
Research InstitutionThe University of Tokushima

Principal Investigator

MITAMURA Yoshinori  徳島大学, 大学院医歯薬学研究部(医学域), 教授 (30287536)

Co-Investigator(Kenkyū-buntansha) 仙波 賢太郎  徳島大学, 病院, 助教 (10745748)
江川 麻理子  徳島大学, 大学院医歯薬学研究部(医学域), 講師 (70507657)
Research Collaborator HARADA Takayuki  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords外科 / 細胞・組織 / 生体分子 / 糖尿病 / 臨床
Outline of Final Research Achievements

We have reported that peroxisome proliferator-activated receptor gamma (PPARγ) plays a role in the progression of proliferative diabetic retinopathy (PDR). Recently, it was reported that cyclin-dependent kinase 5 (Cdk5) promotes the diabetogenic action of PPARγ. Thus, intraocular expression of PPARγ, Cdk5, and p35 was examined in eyes with PDR. Expression of PPARγ, Cdk5, and p35 mRNA in the epiretinal membrane samples obtained during vitrectomy was significantly higher in PDR than in controls. Immunohistochemical analysis showed intense staining of PPARγ, Cdk5, and p35 in the membrane samples from PDR. Taken together, Cdk5 may play a role in the pathogenesis of diabetic retinopathy.

Academic Significance and Societal Importance of the Research Achievements

Cdk5はほぼすべての臓器・組織で発現しているが、神経細胞に高いことが知られている。しかし、これまで増殖糖尿病網膜症などの増殖性疾患の眼内でのCdk5活性は不明であった。我々は硝子体手術時に得られた手術検体を用いてPPARγ、Cdk5の眼内での発現を検索し、黄斑上膜などの対照と比較して有意に発現が亢進していることを示した。このことからCdk5が糖尿病網膜症の病因に関与していることが示唆され、将来的にCdk5阻害剤の投与が増殖糖尿病網膜症の進行を抑制する治療薬となりうる可能性を示したと考えている。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (9 results)

All 2019 2018 2017 2016

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 8 results,  Acknowledgement Compliant: 1 results)

  • [Journal Article] Correlations between choroidal structures and visual functions in eyes with retinitis pigmentosa.2019

    • Author(s)
      Egawa M, Mitamura Y, Niki M, Sano H, Miura G, Chiba A, Yamamoto S, Sonoda S, Sakamoto T
    • Journal Title

      Retina

      Volume: 印刷中 Issue: 12 Pages: 2399-2409

    • DOI

      10.1097/iae.0000000000002285

    • NAID

      120007174422

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Differential effects of N-acetylcysteine on retinal degeneration in two mouse models of normal tension glaucoma2019

    • Author(s)
      Sano Hiroki、Namekata Kazuhiko、Kimura Atsuko、Shitara Hiroshi、Guo Xiaoli、Harada Chikako、Mitamura Yoshinori、Harada Takayuki
    • Journal Title

      Cell Death & Disease

      Volume: 10 Issue: 2 Pages: 75-75

    • DOI

      10.1038/s41419-019-1365-z

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Topical Ripasudil Suppresses Retinal Ganglion Cell Death in a Mouse Model of Normal Tension Glaucoma2018

    • Author(s)
      Akaiwa Kei、Namekata Kazuhiko、Azuchi Yuriko、Sano Hiroki、Guo Xiaoli、Kimura Atsuko、Harada Chikako、Mitamura Yoshinori、Harada Takayuki
    • Journal Title

      Investigative Opthalmology & Visual Science

      Volume: 59 Issue: 5 Pages: 2080-2089

    • DOI

      10.1167/iovs.17-23276

    • NAID

      120006956850

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Edaravone suppresses retinal ganglion cell death in a mouse model of normal tension glaucoma2017

    • Author(s)
      Akaiwa K., Namekata K., Azuchi Y., Guo X., Kimura A., Harada C., Mitamura Y. & Harada T
    • Journal Title

      Cell Death and Disease

      Volume: 8 Issue: 7 Pages: e2934-e2934

    • DOI

      10.1038/cddis.2017.341

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Changes of choroidal structure after intravitreal aflibercept therapy for polypoidal choroidal vasculopathy.2017

    • Author(s)
      Daizumoto E, Mitamura Y, Sano H, Akaiwa K, Niki M, Yamanaka C, Kinoshita T, Egawa M, Sonoda S, Sakamoto T.
    • Journal Title

      Br J Ophthalmol.

      Volume: 101 Issue: 1 Pages: 56-61

    • DOI

      10.1136/bjophthalmol-2016-309694

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Diurnal variations in luminal and stromal areas of choroid in normal eyes.2017

    • Author(s)
      Kinoshita T, Mitamura Y Shinomiya K, Egawa M, Iwata A, Fujihara A, Ogushi Y, Semba K, Akaiwa K, Uchino E, Sonoda S, Sakamoto T
    • Journal Title

      Br J Ophthalmol

      Volume: 101 Pages: 360-364

    • DOI

      10.1136/bjophthalmol-2016-308594

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Optical coherence tomographic parameters predictive of visual outcome after anti-vascular endothelial growth factor therapy for retinal vein occlusion.2016

    • Author(s)
      Fujihara-Mino A, Mitamura Y, Inomoto N, Sano H, Akaiwa K, Semba K
    • Journal Title

      Clin Ophthalmol

      Volume: 10 Pages: 1305-1013

    • DOI

      10.2147/opth.s110793

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Changes in choroidal structures in eyes with chronic central serous chorioretinopathy after half-dose photodynamic therapy.2016

    • Author(s)
      Kinoshita T, Mitamura Y, Mori T, Akaiwa K, Semba K, Egawa M, Mori J, Sonoda S, Sakamoto T
    • Journal Title

      PLoS ONE

      Volume: 11 Issue: 9 Pages: e0163104-e0163104

    • DOI

      10.1371/journal.pone.0163104

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of exercise on the structure and circulation of choroid in normal eyes.2016

    • Author(s)
      Kinoshita T, Mori J, Okuda N, Imaizumi H, Iwasaki M, Shimizu M, Miyamoto H, Akaiwa K, Semba K, Sonoda S, Sakamoto T, Mitamura Y
    • Journal Title

      PLoS ONE

      Volume: 11(12) Issue: 12 Pages: e0168336-e0168336

    • DOI

      10.1371/journal.pone.0168336

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi