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Study of a secretory protein identified from the avian hypothalamus on fat accumulation

Research Project

Project/Area Number 16K07440
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Animal physiology/Animal behavior
Research InstitutionHiroshima University

Principal Investigator

Eiko Iwakoshi  広島大学, 統合生命科学研究科(総), 研究員 (50311296)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords鳥類 / 脂肪蓄積 / 白色脂肪組織 / 肝臓 / 視床下部 / 分泌性小タンパク質 / 季節変動 / 新規分泌性タンパク質 / 体重変化 / 新規分泌性小タンパク質 / 慢性投与実験 / 摂食行動 / 代謝生理
Outline of Final Research Achievements

We recently found a previously unidentified cDNA in chicken hypothalamus which encodes the precursor for neurosecretory protein GL (NPGL). The present study showed that intracerebroventricular (i.c.v.) infusion of NPGL caused body mass gain in chicks. Subsequently, we found that NPGL increased the masses of the liver, abdominal fat, and subcutaneous fat, while NPGL did not affect the masses of muscles, including pectoralis major, pectoralis minor, and biceps femoris. Oil Red O staining revealed that fat deposition had occurred in the liver. In addition, the size of the lipid droplets in the abdominal fat increased. Furthermore, we found an upregulation of lipogenesis and downregulation of lipolysis in the abdominal fat, but not in the liver. These results indicate that NPGL is involved in fat storage in chicks.

Academic Significance and Societal Importance of the Research Achievements

鳥類の脂肪蓄積の先行研究は、主に肝臓に着目したものであった。本研究では、新規の脳因子の作用により、白色脂肪組織でも脂肪合成が生じ、脂肪蓄積が活発になされることを示した。畜産業界では、人為的に餌を大量に食べさせ脂肪肝を生じさせフォアグラを産出する技術があるが、動物福祉の点から問題となっている。今回の成果は、過食を伴わない脂肪蓄積制御が可能であることを示した。今回得られた基礎的な知見が畜産業の応用分野へ利用できる可能性を示すことができたことから、学術的及び社会的意義は極めて大きい。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (15 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (3 results) Journal Article (7 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] UC Berkeley(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] UC Berkeley(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] UC Berkeley(米国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Neurosecretory protein GL induces fat accumulation in mice.2020

    • Author(s)
      Shikano K, Iwakoshi-Ukena E, Saito T, Narimatsu Y, Kadota A, Furumitsu M, Bentley GE, Kriegsfeld LJ, Ukena K.
    • Journal Title

      J. Endocrinol.

      Volume: 244 Issue: 1 Pages: 1-12

    • DOI

      10.1530/joe-19-0112

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Neurosecretory protein GL induces fat accumulation in chicks.2019

    • Author(s)
      Shikano K, Iwakoshi-Ukena E, Kato M, Furumitsu M, Bentley GE, Kriegsfeld LJ, Ukena K.
    • Journal Title

      Front. Endocrinol.

      Volume: 10 Pages: 392-392

    • DOI

      10.3389/fendo.2019.00392

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of chronic intracerebroventricular infusion of neurosecretory protein GL on body mass and food and water intake in chicks.2018

    • Author(s)
      Shikano K, Kato M, Iwakoshi-Ukena E, Furumitsu M, Matsuura D, Masuda K, Tachibana T, Bentley GE, Kriegsfeld LJ, Ukena K.
    • Journal Title

      Gen Comp Endocrinol.

      Volume: 256 Pages: 37-42

    • DOI

      10.1016/j.ygcen.2017.05.016

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Chronic subcutaneous infusion of neurosecretory protein GM increases body mass gain in chicks.2018

    • Author(s)
      Shikano K, Taniuchi S, Iwakoshi-Ukena E, Furumitsu M, Bentley GE, Kriegsfeld LJ and Ukena K.
    • Journal Title

      General and Comparative Endocrinology

      Volume: In press Pages: 71-76

    • DOI

      10.1016/j.ygcen.2017.11.010

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Localization and function of neurosecretory protein GM, a novel small secretory protein, in the chicken hypothalamus.2018

    • Author(s)
      Shikano K, Bessho Y, Kato M, Iwakoshi-Ukena E, Taniuchi S, Furumitsu M, Tachibana T, Bentley GE, Kriegsfeld LJ, Ukena K.
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 704-704

    • DOI

      10.1038/s41598-017-18822-9

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Neurosecretory protein GL, a hypothalamic small secretory protein, participates in energy homeostasis in male mice2017

    • Author(s)
      Matsuura D*, Shikano K*, Saito T*, Iwakoshi-Ukena E, Furumitsu M, Ochi Y, Sato M, Bentley GE, Kriegsfeld LJ, Ukena K
    • Journal Title

      Endocrinology

      Volume: 158 Issue: 5 Pages: 1120-1129

    • DOI

      10.1210/en.2017-00064

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Neurosecretory protein GL stimulates food intake, de novo lipogenesis, and onset of obesity.2017

    • Author(s)
      Iwakoshi-Ukena E, Shikano K, Kondo K, Taniuchi S, Furumitsu M, Ochi Y, Sasaki T, Okamoto S, Bentley GE, Kriegsfeld LJ, Minokoshi Y, Ukena K.
    • Journal Title

      Elife.

      Volume: 6

    • DOI

      10.7554/elife.28527

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] エネルギー代謝調節に関わる新規神経ペプチドの発見と機能解析 ―鳥類と哺乳類の研究から―2019

    • Author(s)
      浮穴和義、岩越栄子
    • Organizer
      日本動物学会 第90回大阪大会 「第4回ペプチド・ホルモン研究会シンポジウム ~多様な動物種を用いたホルモン研究の新展開~」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Effects of two novel hypothalamic small secretory proteins, neurosecretory protein GL and neurosecretory protein GM in chicks2016

    • Author(s)
      Masaki Kato, Kenshiro Shikano, Eiko Iwakoshi-Ukena, Kazuyoshi Ukena
    • Organizer
      第87回日本動物学会大会
    • Place of Presentation
      沖縄
    • Year and Date
      2016-11-18
    • Related Report
      2016 Research-status Report
  • [Presentation] ニワトリにおける新規視床下部分泌性小タンパク質の脳室内慢性投与による影響2016

    • Author(s)
      加藤正暉、鹿野健史朗、古満芽久美、岩越栄子、浮穴和義
    • Organizer
      第40回鳥類内分泌研究会
    • Place of Presentation
      愛媛
    • Year and Date
      2016-11-04
    • Related Report
      2016 Research-status Report
  • [Presentation] Functional analysis of small secretory proteins in the chicken hypothalamus.2016

    • Author(s)
      Kazuyoshi Ukena, Eiko Iwakoshi-Ukena, Kenshiro Shikano, Yuki Bessho, Tetsuya Tachibana
    • Organizer
      11th International Symposium on Avian Endocrinology
    • Place of Presentation
      Niagara-on-the-Lake, Canada
    • Year and Date
      2016-10-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Remarks] 浮穴研究室

    • URL

      http://home.hiroshima-u.ac.jp/ukena/

    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2022-02-21  

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