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Screening of avian leptin using real-time imaging assay for leptin

Research Project

Project/Area Number 24580386
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Zootechnical science/Grassland science
Research InstitutionIbaraki University

Principal Investigator

OHKUBO Takeshi  茨城大学, 農学部, 教授 (70233070)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsレプチン / 情報伝達 / バイオアッセイ / 摂食 / 比較ゲノミクス / 鳥類 / クローニング / 細胞内情報伝達
Outline of Final Research Achievements

We identified leptin-like activity in the blood in chicken and crow using leptin specific bio assay in the present study. Furthermore, we found leptin gene in the falcon genome, and recombinant falcon leptin activates signal transduction cascade by coupling with chicken leptin receptor in vitro. the present results gave a academic significance in terminating the controversy about the existence of avian leptin.
We also investigated the role of leptin on pituitary function, and by which reveald that leptin promote the transcription of chicken growth hormone gene with Pit-1.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (10 results)

All 2014 2013 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Acknowledgement Compliant: 2 results) Presentation (4 results) Remarks (1 results)

  • [Journal Article] Recent Progress in Avian Leptin Research2014

    • Author(s)
      Ohkubo T
    • Journal Title

      The Journal of Poultry Science

      Volume: 51 Issue: 4 Pages: 343-351

    • DOI

      10.2141/jpsa.0130236

    • NAID

      130004446441

    • ISSN
      1346-7395, 1349-0486
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Avian blood induced intranuclear translocation of STAT3 via the chicken leptin receptor2014

    • Author(s)
      Ohkubo T, Hirota K, Murase D, Hiromi Adachi H, Nozawa-Takeda T, Sugita S
    • Journal Title

      Comparative Biochemistry and Physiology Part B

      Volume: 174 Pages: 9-14

    • DOI

      10.1016/j.cbpb.2014.05.001

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Discovery of the elusive leptin in birds: identification of several 'missing links' in the evolution of leptin and its receptor.2014

    • Author(s)
      Prokop JW, Schmidt C, Gasper D, Duff RJ, Milsted A, Ohkubo T, Ball HC, Shawkey MD, Mays HL Jr, Cogburn LA, Londraville RL.
    • Journal Title

      PLoS One

      Volume: 9 Issue: 3 Pages: e92751-e92751

    • DOI

      10.1371/journal.pone.0092751

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Recent progress in avian leptin research.2014

    • Author(s)
      Ohkubo T
    • Journal Title

      Journal of Poultry Science

      Volume: 51

    • NAID

      130004446441

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Inhibitory mechanism of signal transduction through chicken leptin receptor by suppressor of cytokine signaling-3 (SOCS3).2013

    • Author(s)
      Adachi, H., Murase, D. and Ohkubo, T.
    • Journal Title

      Journal of Poultry Science

      Volume: 50

    • NAID

      10031189334

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Changes in appetite-associated genes in the chicken hypothalamus during incubation behavior2014

    • Author(s)
      Ohkubo T, Kodama T, Ohnuki R
    • Organizer
      10 Asia Pacific Poultry Congress
    • Place of Presentation
      Jeju Korea
    • Year and Date
      2014-10-19 – 2014-10-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] 抱卵行動がニワトリ視床下部の摂食関連遺伝子の発現に及ぼす影響2014

    • Author(s)
      児玉孝弘、大貫瑠美、大久保武
    • Organizer
      日本家禽学会
    • Place of Presentation
      筑波大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Role of transactivation domain of Pit-1 is different in the transcriptional regulation of GH gene by leptin in chicken and mouse.2013

    • Author(s)
      Murase T, Ogawa K, Ohkubo T
    • Organizer
      17th International congress of Comparative Endocrinology
    • Place of Presentation
      Barcelona, Spain
    • Related Report
      2013 Research-status Report
  • [Presentation] 鳥類血清中のレプチン様活性の検出2013

    • Author(s)
      村瀬大輔、廣田佳菜子、安達洋泉、竹田努、杉田昭栄、大久保武
    • Organizer
      日本家禽学会
    • Place of Presentation
      安田女子大学
    • Related Report
      2012 Research-status Report
  • [Remarks] 茨城大学農学部動物細胞工学研究室

    • URL

      http://animalcell.agr.ibaraki.ac.jp/TopPage.html

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

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