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Role of LAT1 in T cell activation

Research Project

Project/Area Number 24590328
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General pharmacology
Research InstitutionDokkyo Medical University

Principal Investigator

HAYASHI Keitaro  獨協医科大学, 医学部, 准教授 (10323106)

Co-Investigator(Kenkyū-buntansha) PROMSUK Jutabha  獨協医科大学, 医学部, 助教 (90541748)
Co-Investigator(Renkei-kenkyūsha) ANZAI Naohiko  獨協医科大学, 医学部, 教授 (70276054)
Research Collaborator ENDOU Hitoshi  
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: ¥1,560,000 (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: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
KeywordsLAT1 / アミノ酸トランスポーター / T細胞 / アミノ酸欠乏ストレス応答 / アミノ酸欠乏ストレス反応
Outline of Final Research Achievements

We characterized L-type amino acid transporter 1 (LAT1) as an essential amino acids transporter in activated human T cells. Full activation of primary human T cells triggers the dramatic induction of LAT1. JPH203, a specific inhibitor of LAT1 suppressed amino acid incorporation and immunological function in T cells. We also identified the novel mechanism for suppression of cellular metabolism in LAT1-disturbed T cells. These results indicate that LAT1 expression is induced by full activation of T cells and LAT1 works as a central transporter for essential amino acids in activated T cells. Our result uncover the previously unknown mechanism by which T cells accelerate essential amino acid uptake upon activation and adapt to essential amino acid starvation.

Report

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

    (19 results)

All 2015 2014 2013 2012 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Acknowledgement Compliant: 1 results) Presentation (14 results) (of which Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Role of LAT1 in promotion of amino acid incorporation in activated T cells.2014

    • Author(s)
      Hayashi K, Anzai N
    • Journal Title

      Crit Rev Immunol.

      Volume: 34 Pages: 467-479

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] LAT1 is a central transporter of essential amino acids in human umbilical vein endothelial cell.2014

    • Author(s)
      Hayashi K, Jutabha P, Kamai T, Endou H, Anzai N
    • Journal Title

      J Pharmacol Sci.

      Volume: 124 Pages: 511-513

    • NAID

      130003391512

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] LAT1 is a critical transporter of essential amino acids for immune reactions in activated human T cells.2013

    • Author(s)
      Hayashi K, Jutabha P, et al
    • Journal Title

      J Immunol.

      Volume: 191 Issue: 8 Pages: 4080-4085

    • DOI

      10.4049/jimmunol.1300923

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] c-Myc is crucial for the expression of LAT1 in MIA Paca-2 human pancreatic cancer cells.2012

    • Author(s)
      Hayashi, K., Jutabha, P., Endou, H., Anzai, N.
    • Journal Title

      Oncol. Rep.

      Volume: 28 Pages: 537-544

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] T細胞におけるアミノ酸トランスポーターLAT1の役割2015

    • Author(s)
      林 啓太朗
    • Organizer
      第92回日本生理学会大会
    • Place of Presentation
      神戸
    • Year and Date
      2015-03-21
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] アミノ酸トランスポーターLAT1阻害薬による血管形成阻害2015

    • Author(s)
      林 啓太朗、Promsuk Jutabha、遠藤 仁、安西 尚彦
    • Organizer
      第88回日本薬理学会年会
    • Place of Presentation
      名古屋
    • Year and Date
      2015-03-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] Suppressive Effects of LAT1-Specific Inhibitor on the Activation of Human T Cells.2015

    • Author(s)
      Hayashi K, H Anzai.
    • Organizer
      13th Cytokines & Inflammation Conference
    • Place of Presentation
      San Diego
    • Year and Date
      2015-01-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] 必須アミノ酸トランスポーターLAT1阻害薬の胸腺がんに対する増殖抑制効果2014

    • Author(s)
      林 啓太朗、Promsuk Jutabha、遠藤 仁、安西 尚彦
    • Organizer
      第73回日本癌学会学術集会
    • Place of Presentation
      横浜
    • Year and Date
      2014-09-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 必須アミノ酸トランスポーターLAT1の機能阻害による破骨細胞分化の抑制2014

    • Author(s)
      林 啓太朗、安西 尚彦
    • Organizer
      第32回日本骨代謝学会学術集会
    • Place of Presentation
      大阪
    • Year and Date
      2014-07-04
    • Related Report
      2014 Annual Research Report
  • [Presentation] Induction of expression of LAT1, an essential amino acids transporter, in activated T cells2013

    • Author(s)
      林啓太朗、Promsuk Jutabha、遠藤仁、安西尚彦
    • Organizer
      米国免疫学会年会
    • Place of Presentation
      ホノルル(米国)
    • Related Report
      2012 Research-status Report
  • [Presentation] 癌胎児性中性アミノ酸トランスポーターLAT1特異的阻害薬によるT細胞活性化の抑制

    • Author(s)
      林啓太朗、Promsuk Jutabha、遠藤仁、安西尚彦
    • Organizer
      第129回 日本薬理学会関東部会
    • Place of Presentation
      東京
    • Related Report
      2013 Research-status Report
  • [Presentation] Suppressive effects of LAT1-specific inhibitor on the activation of human T cells

    • Author(s)
      林啓太朗、安西尚彦
    • Organizer
      第7回 次世代を担う医療薬科学シンポジウム(日本薬学会)
    • Place of Presentation
      仙台
    • Related Report
      2013 Research-status Report
  • [Presentation] LAT1特異的阻害薬によるT細胞活性化の抑制

    • Author(s)
      林啓太朗、遠藤仁、安西尚彦
    • Organizer
      第41回日本臨床免疫学会総会
    • Place of Presentation
      下関
    • Related Report
      2013 Research-status Report
  • [Presentation] T細胞活性化における必須アミノ酸トランスポーターLAT1の重要性

    • Author(s)
      林 啓太朗、Promsuk Jutabha、遠藤 仁、安西 尚彦
    • Organizer
      第10回 宮崎サイエンスキャンプ
    • Place of Presentation
      宮崎
    • Related Report
      2013 Research-status Report
  • [Presentation] 必須アミノ酸トランスポーターLAT1の特異的阻害薬によるヒトT細胞の活性化抑制

    • Author(s)
      林 啓太朗、Promsuk Jutabha、遠藤 仁、安西 尚彦
    • Organizer
      第124回 日本薬理学会総会
    • Place of Presentation
      仙台
    • Related Report
      2013 Research-status Report
  • [Presentation] 癌胎児性中性アミノ酸トランスポーターLAT1の発現低下に伴う癌細胞の遺伝子発現変化

    • Author(s)
      林啓太朗、遠藤仁、安西尚彦
    • Organizer
      日本がん分子標的治療学会学術集会
    • Place of Presentation
      北九州市
    • Related Report
      2012 Research-status Report
  • [Presentation] スキルス胃癌細胞44As3-11におけるLAT1の発現現象による遺伝子発現変化の解析

    • Author(s)
      林啓太朗、遠藤仁、安西尚彦
    • Organizer
      日本癌学会学術集会
    • Place of Presentation
      札幌
    • Related Report
      2012 Research-status Report
  • [Presentation] ヒトスキルス胃癌におけるLAT1発現減少による遺伝子変化の解析

    • Author(s)
      林啓太朗、遠藤仁、安西尚彦
    • Organizer
      日本薬理学会年会
    • Place of Presentation
      福岡
    • Related Report
      2012 Research-status Report
  • [Patent(Industrial Property Rights)] 免疫抑制剤2013

    • Inventor(s)
      林啓太朗、安西尚彦
    • Industrial Property Rights Holder
      ジェイファーマ株式会社
    • Industrial Property Rights Type
      特許
    • Filing Date
      2013-08-20
    • Acquisition Date
      2014-02-14
    • Related Report
      2013 Research-status Report

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Published: 2013-05-31   Modified: 2021-04-07  

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