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Development of specific ELISA for short-form GIP and elucidation of its secretion in human

Research Project

Project/Area Number 16K19527
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Metabolomics
Research InstitutionAsahikawa Medical College

Principal Investigator

Takeda Yasutaka  旭川医科大学, 大学病院, 医員 (90431402)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsGIP (1-30) / インクレチン / ELISA / 糖代謝 / 糖質代謝異常 / エネルギー
Outline of Final Research Achievements

The secretion of short-form gastric inhibitory polypeptide (GIP) (1-30) in human remains unclear. We developed an ELISA specific for GIP (1-30) and measured GIP (1-30) secretion during oral glucose tolerance test and cookie meal test in non-diabetics and type 2 diabetics. After both glucose and cookie load, GIP (1-30) blood levels increased. Interestingly, the increases of GIP (1-30) were much lower than those of GIP (1-42). Similarly to known incretins, the DPP-4 inhibitor increased blood GIP (1-30) levels.

Academic Significance and Societal Importance of the Research Achievements

本研究においてGIP (1-30)のELISA系を確立し、さらにヒトにおけるGIP (1-30)の分泌動態を世界に先駆けて明らかにした。GIP (1-30)が経口での糖の摂取や糖・蛋白質・脂質混成食の摂取により分泌が促進されること、即ち経口でのこれらの負荷がGIP (1-30)の分泌刺激となることや、GIP (1-42)とは末梢血中濃度が大きく異なること、既知のインクレチンと同様にDPP-4阻害薬によって分泌が増加することを見出した。以上の知見は、糖代謝における新たな調節因子としてのGIP (1-30)の役割の一端を明らかにするもので、糖尿病の病態や病因の解明の一助となる可能性を有する。

Report

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

    (4 results)

All 2019 2017 2016

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

  • [Journal Article] Dipeptidyl peptidase-4 inhibitor treatment induces a greater increase in plasma levels of bioactive GIP than GLP-1 in non-diabetic subjects.2017

    • Author(s)
      Yanagimachi T, Fujita Y, Takeda Y, Honjo J, Sakagami H, Kitsunai H, Takiyama Y, Abiko A, Makino Y, Kieffer TJ, Haneda M.
    • Journal Title

      Mol Metab

      Volume: 6 Issue: 2 Pages: 226-231

    • DOI

      10.1016/j.molmet.2016.12.009

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Alternative form of glucose-dependent insulinotropic polypepide and its physiology.2016

    • Author(s)
      Fujita Y, Yanagimachi T, Takeda Y, Honjo J, Takiyama Y, Abiko A, Makino Y, Haneda M.
    • Journal Title

      Journal of diabetes investigation

      Volume: Suppl 1 Issue: S1 Pages: 33-37

    • DOI

      10.1111/jdi.12445

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] short-form GIPの測定系の確立とヒトにおける分泌動態の検討2019

    • Author(s)
      竹田 安孝
    • Organizer
      第62回日本糖尿病学会年次学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Secretion of the short-form gastric inhibitory polypeptide in non-diabetic and diabetic subjects2019

    • Author(s)
      Yasutaka Takeda
    • Organizer
      American Diabetes Association's 79th Scientific Sessions
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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

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