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

Elucidation of the mechanisms of renal hypoxia by phosphorescence lifetime measurement

Research Project

Project/Area Number 17K16070
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Kidney internal medicine
Research InstitutionThe University of Tokyo

Principal Investigator

HIRAKAWA YOSUKE  東京大学, 医学部附属病院, 助教 (10780736)

Research Collaborator Tobita Seiji  
Yoshihara Toshitada  
Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords腎臓 / 低酸素 / りん光 / 慢性腎臓病 / 酸素 / 酸素勾配 / 低酸素応答因子
Outline of Final Research Achievements

In this research, the researcher established a technique which visualizes oxygen status in renal surface by using a phosphorescence probe, BTPDM1. By the technique, the researcher demonstrated the existence of oxygen gradient in renal surface, even in neighboring tubules for the first time over the world. This research also revealed the absolute oxygen pressure of S1 and S2 segment of proximal tubules. This researcher further developed this research in assessing the biological meaning the oxygen gradient.

Academic Significance and Societal Importance of the Research Achievements

本研究は、腎臓における酸素状態の評価法を確立した。慢性腎臓病の進行に、腎臓の低酸素が関与することは示されているが、低酸素の評価法が確立していなかったことが、実際に低酸素が関与する腎臓病を同定する上で問題となっていた。このため、本研究での低酸素検出方法の確立は、今後の腎臓病の低酸素をターゲットとした治療法の開発において、基礎的な研究のために有用である。

Report

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

    (10 results)

All 2018 2017

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 4 results) Book (1 results)

  • [Journal Article] Intravital phosphorescence lifetime imaging of the renal cortex accurately measures renal hypoxia.2018

    • Author(s)
      Hirakawa Y, Mizukami K, Yoshihara T, Takahashi I, Khulan P, Honda T, Mimura I, Tanaka T, Tobita S, Nangaku M.
    • Journal Title

      Kidney Int.

      Volume: 印刷中 Issue: 6 Pages: 1483-1489

    • DOI

      10.1016/j.kint.2018.01.015

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Renal Hypoxia in CKD; Pathophysiology and Detecting Methods.2017

    • Author(s)
      Hirakawa Y, Tanaka T, Nangaku M.
    • Journal Title

      Front Physiol

      Volume: 8 Pages: 99-99

    • DOI

      10.3389/fphys.2017.00099

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] DETERMINATION OF OXYGEN TENSION IN TUBULAR EPITHELIAL CELLS USING PHOSPHORESCENCE LIFETIME IMAGING MICROSCOPY2018

    • Author(s)
      Yosuke Hirakawa, Kiichi Mizukami, Toshitada Yoshihara, Tomoko Honda, Imari Mimura, Tetsuhiro Tanaka, Seiji Tobita, Masaomi Nangaku
    • Organizer
      55th ERA-EDTA Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] APPLICATION OF PHOSPHORESCENCE LIFETIME IMAGING MICROSCOPE TO ASSESS TUBULAR OXYGENATION2018

    • Author(s)
      Yosuke Hirakawa, Kiichi Mizukami, Tomoko Honda, Toshitada Yoshihara, Imari Mimura, Tetsuhiro Tanaka, Seiji Tobita, Masaomi Nangaku
    • Organizer
      16th Asian Pacific Congress of Nephrology
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] APPLICATION OF PHOSPHORESCENCE LIFETIME IMAGING MICROSCOPE TO ASSESS TUBULAR OXYGENATION.2018

    • Author(s)
      Yosuke Hirakawa, Kiichi Mizukami, Tomoko Honda, Toshitada Yoshihara, Imari Mimura, Tetsuhiro Tanaka, Seiji Tobita, Masaomi Nangaku.
    • Organizer
      16th Asian Pacific Congress of Nephrology.
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Renal tubular oxygen imaging using phosphorescence lifetime imaging microscope.2018

    • Author(s)
      Yosuke Hirakawa, Toshitada Yoshihara, Tomoko Honda, Imari Mimura, Tetsuhiro Tanaka, Seiji Tobita, Masaomi Nangaku.
    • Organizer
      ISN Frontiers meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] りん光寿命イメージング顕微鏡を用いた生体腎皮質の酸素勾配の描出2017

    • Author(s)
      平川 陽亮, 吉原 利忠, 本田 智子, 三村 維真理, 田中 哲洋, 飛田 成史, 南学 正臣.
    • Organizer
      2017年度生命科学系学会合同年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 生体内での近位尿細管における酸素勾配の描出2017

    • Author(s)
      平川 陽亮, 吉原 利忠, 神谷 真子, 三村 維真理, 田中 哲洋, 浦野 泰照, 飛田 成史, 南学 正臣.
    • Organizer
      第60回日本腎臓学会学術総会
    • Related Report
      2017 Research-status Report
  • [Presentation] りん光寿命イメージング顕微鏡を用いた腎表面酸素分圧勾配の描出.2017

    • Author(s)
      平川 陽亮, 吉原 利忠, 三村 維真理, 南学 正臣, 飛田 成史.
    • Organizer
      第12回日本分子イメージング学会学術集会
    • Related Report
      2017 Research-status Report
  • [Book] RSC Detection Science: Quenched-phosphorescence Detection of Molecular Oxygen: Applications in Life Sciences2018

    • Author(s)
      Yoshihara T, Hirakawa Y, Nangaku M, Tobita S
    • Total Pages
      368
    • Publisher
      Royal Society of Chemistry
    • Related Report
      2018 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi