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Roles of GTP-binding proteins in dynamics of secretory granules in human neutrophils

Research Project

Project/Area Number 07807101
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Hematology
Research InstitutionKochi Medical School

Principal Investigator

KOBAYASHI Toshihiro  Kochi Medical School Faculty of Medicine, Assistant, 医学部, 助手 (40153621)

Co-Investigator(Kenkyū-buntansha) OKADA Teruhiko  Kochi Medical School Faculty of Medicine, Associate Professor, 医学部, 助教授 (00025628)
SEGUCHI Harumichi  Kochi Medical School Faculty of Medicine, Professor, 医学部, 教授 (90030866)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1996: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1995: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywordsneutrophils / signal transduction / GTP-binding proteins / NADPH oxidase / alkaline phosphatase
Research Abstract

Human neutrophils possess alkaline phosphatase-containing intracellular granules which are up-regulated to the cell surface upon stimulation (Kobayashi and Robinson. 1991, J.Cell Biol.113 : 743-756). The mechanisms of the intracellular dynamics of these granules has not fully elucidated. The aim of the present study is to investigate the participation of GTP-binding proteins in reorganization and exocytosis of the alkaline phosphatase-containing granules using electropermeabilized cells. In biochemical assays, intact neutrophils showed the up-regulation of alkaline phosphatase activity to the cell surface upon stimulation with AIF_4^- and N-formy1 peptide. This up-regulation was inhibited by the treatment of cells with pertussis toxin or botulinum toxin. Alkaline phosphatase activity was also up-regulated in electropermeabilized cells stimulated with GTPgammaS,but not with GDPbetaS.In cytochemical studies, alkaline phosphatase-containing granules were localized dispersedly throughout the cytoplasm in unstimulated electromeabilized neutrophils. Upon stimulation with GTPgammaS,but not with GDPbetaS,these granules fused to from elongated tubular structures which were associated with the plasma membrane. Nocodazole perturbed the reorganization of the alkaline phosphatase-containing granules upon stimulation with GTPgammaS.Results from this study indicate that GTP-binding proteins participate in reorganization and exocytosis of the alkaline phosphatase-containing granules which are associated with the microtubules in electropermeabilized human neutrophils.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] X.Jiang: "Ultracytochemical localization of alkaline phosphatase(ALPas)avtivity in neutrophils of the rat lung following injection of lipopysaccharide" Acta Anatomica Nipponica. 71. 183-194 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Seguchi: "Intracellular granules are the site of superoxide production in human neutrophils" Advances in Microscopy of Cells,Tissues and Organs(ed)P.M.Motta. 105-110 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Kobayashi: "Internalization of ecto-ATPase activity in human netrophils upon stimulation with phorbol ester of formyl peptride" Histochemistry and Cell Biology. 107. 353-363 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Kobayashi: "Phenylarsine oxide modulates intracellular dynamics of alkaline phosphatasecontaining granules in human neutrophils stimulated with phorbol myristat acetate" Acta Histochemica et Cytochemica. 30. 537-544 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] X.Jiang: "An ultracytochemical study on the dynamics of alkaline phophatasepositive granules in rat neutrophils" Histology and Histopathology. 13. 57-65 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Kobayashi: "Identification of intracellular sites of superoxide production in humann neutrophils" J.of Cell Science. 111. 81-91 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 瀬口 春道: "解剖学者が語る人体の世界:白血球の働き" 日本解剖学会編 風人社, 3 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 小林 俊博: "電子顕微鏡基礎技術と応用:酸素組織化学の基礎と細胞生物学への応用子" 電顕実行委員会編 学際企画, 8 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] X.Jiang: "Ultracytochemical localization of alkaline phosphatase (ALPase) avitvity in neutrophils of the rat lung following injection of lipopysaccharide" Acta Anatomica Nipponica. 71. 183-194 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Seguchi: "Intracellular granules are the site of superoxide production in human neutrophils" Advances in Microscopy of Cells, Tissues and Organs (ed) P.M.Motta. 105-110 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Kobayashi: "Internalization of ecto-ATPase activity in human netrophils upon stimulation with phorbol ester or formyl peptride" Histochemistry and Cell Biology. 107. 353-363 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Kobayashi: "Phenylarsine oxide modulates intracellular dynamics of alkaline phosphatase containing granules in human netrophils stimulated with phorbol myristat acetate" Acta Histochemica et Cytochemica. 30. 537-544 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] X.Jaing: "An ultracytochemical study on the dynamics of alkaline phophatase-positive granules in rat neutrophils" Histology and Histopathology. 13. 57-65 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Kobayashi: "Identification of intracellular sites of superoxide production in human neutrophils" J.of Cell Science. 111. 81-91 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kobayashi,T.: "Effect of GTPγS on the movement of alkaline phosphatase containing granules in human neutrophils" Acta Anatomica Nipponica. 70. S143 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kobayashi,T.: "Localization of NADPH oxidase activity in human neutrophils" J.Electron Microscopy. 44. 231 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Jiang X.D.: "Site of superoxide production in stimulated rat neutrophils" Histochemistry and Cytochemistry 1996 Proceeding of the Xth international congress. 658-659 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kobayashi,T.: "Different stimuli alter dynamics of intracellular movement of secreaory granules in human neutrophils" Histochemistry and Cytochemistry 1996 Proceeding of the Xth international congress. 664-665 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Jinag X.D.: "Ultracytochemical localization of alkaline phosphatase activity in neutrophils of the rat lungfollowing injection of lipopolysaccaride" Acta Anatomica Nipponica. 71. 183-184 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kobayashi,T.: "Intracellular of ecto-ATPase activity in upon stimulation with phorbol ester or formal peptide in human neutrophils" Histochemistry and Cell Biology. (in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 瀬口春道: "解剖学者が語る人体の世界" 風人社, 141 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Seguchi H and Kobayashi T: "Superoxide production in human neutrophils islocalized in alkaline phosphatase-positive granules" Acta Anatomica. 152. 344A (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Seguchi H and Kobayashi T: "Effect of GTPγS on the exocytosis of alkalinephosphatase-containing granules in human neutrophols" XIIth international symposium on morphological science. 62 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Seguchi H,E.Garciadel Saz & Kobayashi T: "Alkaline phosphatase-containing granules are the site of superoxide production in human neutrophils" Acta Histochem.Cytochem.28. 485 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Seguchi H.and Kobayashi T.: "Intracellular granules are the site of superoxide production" 2nd International Malpighi Symposium. 211 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kobayshi T.,Okada T.and Seguchi H.: "Effect of GTPγS on the movement of alkaline phophatase-containing granules in human neutrophils" Acta Anatomica Nipponica. 70. S143 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kobayshi T.and Seguchi H.: "Localization of NADPH oxidase activity in human meutrophils" J.Electron microsc.44. 231 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 瀬口春道・小林俊博: "人体の世界" 風人社, 141 (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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