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Functional analysis of alpha1,6-fucosyltransferase deficient mice and underlying molecular mechanism

Research Project

Project/Area Number 24590087
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biological pharmacy
Research InstitutionTohoku Pharmaceutical University

Principal Investigator

FUKUDA Tomohiko  東北薬科大学, 薬学部, 准教授 (40433510)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords糖転移酵素 / フコース / 膜タンパク質 / AMPA 受容体 / Fut8 / α1,6 フコース / 糖鎖 / 神経疾患ス / モデルマウ / 神経疾患 / モデルマウス
Outline of Final Research Achievements

We previously reported thatα1,6-fucosyltransferase (Fut8) knockout (Fut8-/-) mice showed a schizophrenia-like phenotype and a decrease in working memory. To understand the underlying molecular mechanism, we analyzed early-form long-term potentiation (E-LTP), which is closely related to learning and memory in the hippocampus. The scale of E-LTP induced by high frequency stimulation was significantly decreased in Fut8-/- mice. The expression levels of AMPARs in the postsynaptic density were enhanced in Fut8-/- mice, although there were no significant differences in the total expression levels, implicating that AMPARs without core fucosylation might exist in an active state. Taken together, loss of core fucosylation on AMPARs enhanced their heteromerization, which might increase sensitivity for postsynaptic depolarization, and persistently activate N-methyl-D-aspartate receptors as well as Ca2+ influx and CaMKII, and then impair LTP.

Report

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

    (10 results)

All 2015 2014 2013 2012

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (5 results)

  • [Journal Article] Loss of α1,6-fucosyltransferase decreased hippocampal long-term potentiation: implication of core fucosylation in the regulation of AMPA receptor heteromerization and cellular signaling2015

    • Author(s)
      Wei Gu, Tomohiko Fukuda, Tomoya Isaji, Qinglei Hang, Ho-hsun Lee, Seiichiro Sakai, Jyoji Morise, Junya Mitoma, Hideyoshi Higashi, Naoyuki Taniguchi, Hiromu Yawo, Shogo Oka, Jianguo Gu
    • Journal Title

      J Biol Chem.

      Volume: in press

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] α1,6-Fucosylation regulates neurite formation via the activin/phospho-Smad2 pathway in PC12 cells: the implicated dual effects of Fut8 for TGF-β/activin-mediated signaling.2013

    • Author(s)
      Gu, W., Fukuda, T., Isaji, T., Hashimoto, H., Wang., Y and Gu, J.
    • Journal Title

      FASEB J

      Volume: 27 Issue: 10 Pages: 3947-3958

    • DOI

      10.1096/fj.12-225805

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Basement membrane assembly of the integrin α8β1 ligand nephronectin requires Fraser syndrome-associated proteins.2012

    • Author(s)
      Kiyozumi D, Takeichi M, Nakano I, Sato Y, Fukuda T, Sekiguchi K.
    • Journal Title

      The Journal of Cell Biology

      Volume: 197 Issue: 5 Pages: 677-89

    • DOI

      10.1083/jcb.201203065

    • NAID

      120006626430

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Roles of N-acetylglucosaminyltransferase III in epithelial-to-mesenchymal transition induced by transforming growth factor β1 (TGF-β1) in epithelial cell lines.2012

    • Author(s)
      Xu Q, Isaji T, Lu Y, Gu W, Kondo M, Fukuda T, Du Y, Gu J.
    • Journal Title

      Journal of Biological Chemistry

      Volume: 286 Issue: 20 Pages: 16563-74

    • DOI

      10.1074/jbc.m111.262154

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Potential roles of N-glycosylation in cell adhesion.2012

    • Author(s)
      Gu, J., et al
    • Journal Title

      Glycoconj J

      Volume: 29 Issue: 8-9 Pages: 599-607

    • DOI

      10.1007/s10719-012-9386-1

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Functional analysis of α1,6-fucosyltransferase deficient mice and underlying molecular mechanism2014

    • Author(s)
      福田友彦、顧建国
    • Organizer
      第57回日本神経化学会
    • Place of Presentation
      奈良県文化会館・奈良県新公会堂(奈良県奈良市)
    • Year and Date
      2014-09-29 – 2014-10-01
    • Related Report
      2014 Annual Research Report
  • [Presentation] Impairment of hippocampal long-term potentiation and enhanced AMPA receptor complexes formation in alpha 1,6-fucosyltransferase-deficient mice2014

    • Author(s)
      Tomohiko Fukuda, Wei Gu, Tomoya Isaji, Seiichiro Sakai, Jyoji Morise, Hideyoshi Higashi, Naoyuki Taniguchi, Hiromu Yawo, Shogo Oka Jianguo Gu
    • Organizer
      9th International Symposium on Glycosyltransferases
    • Place of Presentation
      Porto, Portugal
    • Year and Date
      2014-06-18 – 2014-06-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] Mice lacking fucosyltransferase 8 exhibit abnormal behavioral abnormalities associated with a schizophrenia-like phenotype2013

    • Author(s)
      Fukuda T., Gu W., Isaji T., Taniguchi n. Gu J.
    • Organizer
      Glycoconjugates-22(GLYCO-22)
    • Place of Presentation
      Dalian
    • Related Report
      2013 Research-status Report
  • [Presentation] α1,6 フコース転移酵素Fut8 欠損による海馬機能の変化2012

    • Author(s)
      福田友彦、顧威、橋本弘和、酒井 誠一郎、王玉琴、伊左治知弥、八尾寛、東秀好、顧建国
    • Organizer
      第31回日本糖質学会年
    • Place of Presentation
      鹿児島
    • Related Report
      2012 Research-status Report
  • [Presentation] 脳神経における α1,6 フコースの機能解析2012

    • Author(s)
      福田 友彦, 顧 威, 伊左治 知弥, 王 玉琴, 顧 建国
    • Organizer
      第4回東北糖鎖研究会
    • Place of Presentation
      青森
    • Related Report
      2012 Research-status Report

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

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