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2003 Fiscal Year Final Research Report Summary

Research for the molecular mechanism regulating multu-functresponses mediated via G protein-coupled receptors

Research Project

Project/Area Number 14370737
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biological pharmacy
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

NAKAHATA Norimichi  TOHOKU UNIVERSITY, GRADUATE SCHOOL OF PHARMACEUTICAL SCIENCES, PROFESSOR, 大学院・薬学研究科, 教授 (60045804)

Co-Investigator(Kenkyū-buntansha) HONMA Shigeyoshi  TOHOKU UNIVERSITY, GRADUATE SCHOOL OF PHARMACEUTICAL SCIENCES, RESEARCH ASSOCIATE, 大学院・薬学研究科, 教務職員 (20344682)
OHKUBO Satoko  TOHOKU UNIVERSITY, GRADUATE SCHOOL OF PHARMACEUTICAL SCIENCES, INSUTORUCTOR, 大学院・薬学研究科, 助手 (20274954)
YOSHIDA Makoto  TOHOKU UNIVERSITY, GRADUATE SCHOOL OF PAHRMACEUTICAL SCIENCES, ASSOCIATE PROFFESOR, 大学院・薬学研究科, 助教授 (90201011)
SUKEGAWA Jun  TOHOKU UNIVERSITY, GRADUATE SCHOOL OF MEDICINE, ASSOCIATE PROFESSOR, 大学院・医学系研究科, 助教授 (30187687)
Project Period (FY) 2002 – 2003
KeywordsG protein-coupled receptor / thromboxane A_2 receptor / PTH receptor / proteasme / G_<12> / Tctes-1 / 4.1G / two hybrid system
Research Abstract

Since the ligands to G protein coupled receptors (GPCRs) are utilized for the, treatment of many diseases, it is important to investigate the signal transduction in GPCRs for developing the new effective drugs. Recently, it has been clarified that stimulation of one GPCR results in the multiple responses, although the molecular mechanism has not been clarified. In the present study, we tried to clarify the mechanism in GPCR-mediated multiple signal transduction.
To examine the protein directly bound to thromboxane A_2 receptor (TP), yeast two hybrid system was employed. It was found that carboxyl terminal of TP-β, but not TP-α, proteasome activator PA28γ and proteasome subunit α7. Furthermore, an inhibitor of proteasome accelerated, the expression of TP-β, but not TP-α. On the other hand, it has been examined whether TP communicates with G_<12> family G protein using the adenovirus coding the Gα_2 or Gα_<13>. We found that TP clearly communicate G_<12> and G_<13> in addition of Gq. Moreover, we found that C terminal of PTH receptor communicates with Tctex-1 and 4.1G, which show a role of internalization PTH receptor or expression of the receptor in plasma membranes, respectively. Thus, we clarify, the several important regulatory mechanism of GPCR-mediated signal transduction in the present study.

  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Yutaro Obara: "The signaling pathway of neurotrophic factor biosynthesis"Drug News and Perspective. 115. 290-298 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Keigo Nakatani: "Inhibition of cyclooxygenase and prostaglandin E_2 synthesis by γ-mangostine. a xanthone derivarive in mangosteen ; in C6 rat glioma cell"Biochem.Pharmacol.. 63. 73-79 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Haruhisa Kikuchi: "The isolation and synthesis of two novel N-acetylglucosamine derivatives from Dictyostelium cellular slime molds which exhibit neurite outgrowth activity"Tetrahedron Lett.. 43. 1477-1480 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masatake Kurita: "Lithium at the"therapeutic"concentration reduces Ca^<2+> response in protein kinase C-down regulated human astrocytoma cells"Eur.J.Pharmacol.. 442. 17-22 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Keigo Nakatani: "Inhibition of histamine release and prostaglandin E_2 synthesis by mangosteen, a Thai medicinal plant"Biol.Pharm.Bull.. 25. 1137-1141 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 中畑則道: "脂質ラフトとその解析法"日薬理誌. 122. 419-425 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Sachiko Tukamoto: "Tricholomalides A-C, new neurosrophic diterpenes from the mushroom Tricholoma sp."J.Natl.Prod.. 66. 1578-1581 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Minori Saito: "Theonezolide A, a novel marine macrolide, induces drastic shape change in rabbit platelets by reorganization of microtubules"Thrombosis Res.. 108. 133-138 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Norimichi Nakahata: "Baicalein inhibits Raf-1-mediated phosphorylation of MEK-1 in C6 rat glioma cells"Eur.J.Pharmacol.. 461. 1-7 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yutaka Hirata: "Mastoparan binds to glycogen phosphorylase to regulate sarcoplasmic reticulum Ca^<2+> release in skeletal muscle"Biochem.J.. 371. 81-88 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasuo Kodama: "Dual Effect of Saikogenin D ; In vitro Inhibition of Prostaglandin E_2 Production and Elevation of Intracellular Free Ca^<2+> Concentration in C6 rat glioma cells"Planta Medica. 69. 765-767 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Maki Sugai: "PTH/PTH-related protein receptor interacts directly with Tctex-1 through its COOH terminus"Biochem.Biophyis.Res.Commun.. 331. 24-31 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yutaro Obara, Norimichi Nakahata: "The Signaling Pathway of Neurotrophic Factor Biosynthesis"Drug News and Perspective. 115(5). 290-298 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Keigo Nakatani, Norimichi Nakahata, Tsutomu Arakawa, Hideyuki Yasuda, Yasushi Ohizumi: "Inhibition of cyclooxygenase and prostaglandin E_2 synthesis by γ-mangositine, a xanthone derivative in mangosteen, in C6 rat glioma cell"Biochem.Pharmacol.. 63. 73-79 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Haruhisa Kikuchi, Jun Komiya, Yoshinori Saito, Jun-ichi Sekiya, Shigeyoshi Honma, Norimichi Nakahata, Yoshiteru Oshima: "The isolation and synthesis of two novel N-acetylglucosamine derivatives from Dictyostelium cellular slime molds which exhibit neurite outgrowth activity"Tetrahedron Lett.. 43. 1477-1480 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masatake Kurita, Hirobumi Mashiko, Mayumi Rai, Tadanori Kumasaka, Sou-ichi Kouno, Shin-ichi Niwa, Norimichi Nakahata: "Lithium at the "therapeutic" concentration reduces Ca^<2+> response in protein kinase C-down regulated human astrocytoma cells"Eur.J.Pharmacol.. 442. 17-22 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Keigo Nakatani, Masanori Atsumi, Tsutomu Arakawa, Kenji Oosawa, Susumu Shimura, Norimichi Nakahata, Yasushi Ohizumi: "Inhibitions of histamine release and prostaglandin E_2 synthesis by mangosteen, a Thai medicinal plant"Biol.Pharm.Bull.. 25. 1137-1141 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Norimichi Nakahata, Satoko Ohkubo: "Lipid rafts and their analytical methods"Folia Pharmacol.Jpn. 122. 419-425 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sachiko Tsukamoto, Abder Gafur Macabalang, Keigo Nakatani, Yutaro Obara, Norimichi Nakahata, Tomihisa Ohta: "Tricholomalids A-C, new neurotrophic diterpenes from the mushroom Tricholoma sp."J.Nat.Prod.. 66. 1578-1581 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Minori Saito, Satoko Ohkugo, Yutaro Obara, Teruyuki Yanagisawa, Jun-Ichi Kobayashi, Yasushi Ohizumi, Norimichi Nakahata: "Theonezolide A, a novel marine macrolide, induces drastic shape change in rabbit platelets by reorganization of microtubules"Thrombosis Res.. 108. 133-138 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Norimichi Nakahata, Chikako Tsuchiya, Keigo Nakatani, Yasushi Ohizumi, Satoko Ohkubo: "Baicalein inhibits Raf-1-mediated phosphorylation of MEK-1 in C6 rat glioma cells"Eur.J.Pharmacol.. 461. 1-7 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yutaka Hirata, Masanori Atsumi, Yasushi Ohizumi, Norimichi Nakahata: "Mastoparan binds to glycogen 」 to regulate sarcoplasmic reticulum Ca^<2+> release in skeletal muscle"Biochem.J.. 371. 81-88 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yasuo Kodama, Lv Xiaochuan, Chikako Tsuchiya, Yasushi Ohizumi, Makaoto Yoshida, Norimichi Nakahata: "Dual Effect of Saikogenin D ; In vitro Inhibition of Prostaglandin E_2 Production and Elevation of Intracellular Free Ca^<2+> in C6 rat glioma cells"Planta Medica. 69. 765-767 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Maki Sugai, Masaki Saito, Izumi Sukegawa, Yuriko Katsushima, Yoshitaka Knouchi, Norimichi Nakahata, Tooru Shimosegawa, Reruyuki Yanagisawa, Jun Sukegawa: "PTH/PTH-related protein receptor interacts directly with Tctex-1 through its COOH terminus"Biochem.Biophyis.Res.Commun.. 331. 24-31 (2003)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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