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Search for the roles of modification of nuclear proteins by coagulation factor XIII (plasma transglutaminase)

Research Project

Project/Area Number 16K08608
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pathological medical chemistry
Research InstitutionYamagata University

Principal Investigator

Souri Masayoshi  山形大学, 医学部, 准教授 (20292419)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords凝固第XIII因子 / トランスグルタミナーゼ / 巨核球分化 / 細胞内基質 / 凝固XIII因子 / 巨核球 / 酵素 / 血球分化
Outline of Final Research Achievements

The A subunit of coagulation factor XIII (FXIII-A) is a plasma transglutaminase (TGase), which exists not only in plasma but also inside bone marrow-derived cells such as megakaryocytes, and was found to possibly modify nuclear proteins with amines. A nuclear protein was determined as a substrate for FXIII-A in the present study. Studies using FXIII-A- and/or tissue TGase deficient mice exhibited that (1) FXIII-A contributed to the modification of nuclear proteins in megakaryocytes, (2) FXIII-A controlled differentiation of megakaryocytes, (3) a FXIII-A substrate increased during differentiation of megakaryocytes which was suppressed by FXIII-A.

Academic Significance and Societal Importance of the Research Achievements

FXIII-Aが巨核球の分化に寄与すること、細胞内の基質タンパク質を同定したことは世界的にも全く新しい発見である。巨核球は血小板産生の元となる細胞であり、血小板減少症における治療や、再生医療における幹細胞・iPS細胞からの血小板産生効率の上昇に向けた新たなヒントとなる可能性がある。

Report

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

    (2 results)

All 2017 2016

All Presentation (2 results)

  • [Presentation] 巨核球における凝固XIII因子の活性と基質2017

    • Author(s)
      惣宇利正善、尾崎司、一瀬白帝
    • Organizer
      第90回日本生化学会大会(生命科学系学会合同年次大会)
    • Related Report
      2017 Research-status Report
  • [Presentation] 凝固XIII因子Aサブユニットの細胞内での活性化2016

    • Author(s)
      惣宇利正善、尾崎司、一瀬白帝
    • Organizer
      第89回日本生化学会大会
    • Place of Presentation
      東北大学川内北キャンパス(宮城県仙台市)
    • Year and Date
      2016-09-27
    • Related Report
      2016 Research-status Report

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

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