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Cobalt protoporphyrin accelerates TFEB activation and lysosome reformation during LPS-induced septic insults in the rat heart.

Research Project

Project/Area Number 26713024
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypePartial Multi-year Fund
Research Field Legal medicine
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Unuma Kana  東京医科歯科大学, 医歯(薬)学総合研究科, 講師 (30586425)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥23,790,000 (Direct Cost: ¥18,300,000、Indirect Cost: ¥5,490,000)
Fiscal Year 2015: ¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2014: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Keywords敗血症 / オートファジー / 心臓 / 一酸化炭素 / ヘムオキシゲナーゼ / 肝臓 / 酸化ストレス
Outline of Final Research Achievements

Lipopolysaccharide (LPS)-induced myocardial dysfunction is caused, in part, by mitochondrial dysfunction. In this study, we show that CoPPIX not only accelerates the autophagic response but also promotes lysosome reformation in the rat heart treated with LPS. Activation of TFEB was also observed, indicating a hyper consumption and subsequent reformation of the lysosome to meet the increased demand for autophagosome cleaning. CoPPIX was found to promote these processes and tended to restore the LPS-induced suppression of cardiac performances whilst chloroquine abrogates these beneficial effects. The cardioprotective effect of CoPPIX against LPS toxicity was also observed via decreased levels of cardiac releasing enzymes in the plasma. Taken together, our current data indicate that lysosome reformation mediated by TFEB may be involved in cardioprotection against LPS-induced septic insults, and serve as a novel mechanism by which CoPPIX protects the heart against oxidative stress.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • Research Products

    (16 results)

All 2015 2014 2013 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Acknowledgement Compliant: 4 results,  Open Access: 4 results) Presentation (7 results) (of which Invited: 1 results) Remarks (2 results)

  • [Journal Article] Lipopolysaccharide induces expression of collagen VI in the rat lung2015

    • Author(s)
      Okawa S, Unuma K, Yamada A, Aki T, Uemura K
    • Journal Title

      J Toxicol Pathol.

      Volume: 28(1) Issue: 1 Pages: 37-41

    • DOI

      10.1293/tox.2014-0053

    • NAID

      130004842606

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Immobilization Stress With <i>α</i><sub>2</sub>-Adrenergic Stimulation Induces Regional and Transient Reduction of Cardiac Contraction Through Gi Coupling in Rats2015

    • Author(s)
      Kuroda R, Shintani-Ishida K, Unuma K, Yoshida KI.
    • Journal Title

      International Heart Journal

      Volume: 56 Issue: 5 Pages: 537-543

    • DOI

      10.1536/ihj.15-034

    • NAID

      130005102130

    • ISSN
      1349-2365, 1349-3299
    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Direct Exposure to Ethanol Disrupts Junctional Cell-Cell Contact and Hippo-YAP Signaling in HL-1 Murine Atrial Cardiomyocytes.2015

    • Author(s)
      Noritake K, Aki T, Funakoshi T, Unuma K, Uemura K.
    • Journal Title

      PLoS One

      Volume: 10(8) Issue: 8 Pages: e0136952-e0136952

    • DOI

      10.1371/journal.pone.0136952

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lipopolysaccharide induces expression of collagen VI in the rat lung2015

    • Author(s)
      Okawa S, Unuma K, Yamada A, Aki T, Uemura K.
    • Journal Title

      J Toxicol Pathol.

      Volume: in press

    • NAID

      130004842606

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Activation of Master Autophagy Regulator TFEB During Systemic LPS Administration in the Cornea2014

    • Author(s)
      8.Kyoko Uchida, Kana Unuma, Takeshi Funakoshi, Toshihiko Aki, and Koichi Uemura
    • Journal Title

      Journal of Toxicologic Pathology

      Volume: 27 Issue: 2 Pages: 153-158

    • DOI

      10.1293/tox.2014-0004

    • NAID

      130003391349

    • ISSN
      0914-9198, 1881-915X
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Activation of the ubiquitin-proteasome system against arsenic trioxide cardiotoxicity involves ubiquitin ligase Parkin for mitochondrial homeostasis.2014

    • Author(s)
      Mayumi Watanabe, Takeshi Funakoshi, Kana Unuma, Toshihiko Aki#, and Koichi Uemura
    • Journal Title

      Toxicology

      Volume: 322 Pages: 43-50

    • DOI

      10.1016/j.tox.2014.04.008

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Immunohistochemical study of the autophagy marker microtubule-associated protein 1 light chain 3 in normal and steatotic humanlivers2013

    • Author(s)
      Kashima J, Shintani-Ishida K, Nakajima M, Maeda H, Unuma K, Uchiyama Y, Yoshida K
    • Journal Title

      Hepatol Res

      Volume: 413 Issue: 7 Pages: 779-787

    • DOI

      10.1111/hepr.12183

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Increase of MFG-E8 expression and its implications in vascular disorder by cocaine abuse.2015

    • Author(s)
      木村 遥、鵜沼 香奈、秋 利彦、上村 公一.
    • Organizer
      第88回日本生化学会大会
    • Place of Presentation
      神戸ポートアイランド(兵庫県神戸市)
    • Year and Date
      2015-12-01
    • Related Report
      2015 Annual Research Report
  • [Presentation] 覚せい剤原料ノルエフェドリン暴露による細胞内コレステロール蓄積とネクロトーシス誘導の解析2015

    • Author(s)
      船越丈司、秋利彦、田尻正輝、鵜沼香奈、上村公一.
    • Organizer
      第88回日本生化学会大会
    • Place of Presentation
      神戸ポートアイランド(兵庫県神戸市)
    • Year and Date
      2015-12-01
    • Related Report
      2015 Annual Research Report
  • [Presentation] 敗血症性肺障害モデルにおけるコラーゲン分子の変動.2015

    • Author(s)
      鵜沼 香奈、大川 紗由里、秋 利彦、山田 真嗣、上村 公一.
    • Organizer
      99次日本法医学会総会
    • Place of Presentation
      高知市文化プラザ(高知県高知市)
    • Year and Date
      2015-06-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] マウス心房由来HL-1 細胞の亜砒酸誘導性アポトーシスにおけるユビキチン―プロテアソーム系の抑制作用.2014

    • Author(s)
      渡邉 まゆ美, 船越 丈司, 鵜沼 香奈, 秋 利彦, 上村 公一.
    • Organizer
      第87 回日本生化学会大会
    • Place of Presentation
      京都
    • Year and Date
      2014-10-15 – 2014-10-18
    • Related Report
      2014 Annual Research Report
  • [Presentation] 敗血症モデルにおける各種臓器不全の分子学的検討2014

    • Author(s)
      鵜沼 香奈
    • Organizer
      第98次日本法医学会学術全国集会(学術奨励賞受賞講演)
    • Place of Presentation
      福岡
    • Year and Date
      2014-06-19
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Secretion of mitochondrial contents through autophagolysosomal exocytosis from lipopolysaccharide-stimulated hepatocytes and embryonic fibroblasts2014

    • Author(s)
      Kana Unuma, Toshihiko Aki, Takeshi Funakoshi, Koichi Uemura
    • Organizer
      9th International Symposium on Advances in Legal Medicine
    • Place of Presentation
      Fukuoka
    • Year and Date
      2014-06-16 – 2014-06-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] Activation of ubiquitin-proteasome system plays a protective role in arsenic trioxide-induced cardiotoxicity.2014

    • Author(s)
      Watanabe M, Funakoshi T, Unuma K, Aki T, Uemura K.
    • Organizer
      9th International Symposium on Advances in Legal Medicine
    • Place of Presentation
      Fukuoka
    • Year and Date
      2014-06-16 – 2014-06-20
    • Related Report
      2014 Annual Research Report
  • [Remarks] 東京医科歯科大学法医学分野研究業績

    • URL

      http://www.tmd.ac.jp/med/legm/houi_gyouseki.html

    • Related Report
      2015 Annual Research Report
  • [Remarks] 東京医科歯科大学法医学教室研究業績

    • URL

      http://www.tmd.ac.jp/med/legm/gyouseki.html

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2017-05-10  

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