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細胞内情報伝達系と細胞増殖の制御機構

Research Project

Project/Area Number 04253229
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionKobe University

Principal Investigator

高井 義美  神戸大学, 医学部, 教授 (60093514)

Co-Investigator(Kenkyū-buntansha) 田中 一馬  神戸大学, 医学部, 助手 (60188290)
佐々木 卓也  神戸大学, 医学部, 助手 (40241278)
菊池 章  神戸大学, 医学部, 講師 (10204827)
貝淵 弘三  神戸大学, 医学部, 助教授 (00169377)
Project Period (FY) 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥52,000,000 (Direct Cost: ¥52,000,000)
Fiscal Year 1993: ¥27,000,000 (Direct Cost: ¥27,000,000)
Fiscal Year 1992: ¥25,000,000 (Direct Cost: ¥25,000,000)
Keywords低分子量G蛋白質 / Rho / HGF / 細胞運動 / Rho GDI / C3 / TPA感受性因子 / Cキナーゼ / 細胞増殖 / 低分子量GTP結合蛋白質 / ras p21 / rho p21 / smg GDS / rho GDI
Research Abstract

低分子量G蛋白質の中でも、Rasは核遺伝子の発現を介して細胞の増殖や分化を制御していることが判明しているが、私共は本研究でRhoがアクトミオシン系を介して細胞の形態や運動を制御していることを明らかにした。すなわち、ケラチノサイト308R細胞にRhoの活性制御蛋白質であるRho GDIや、RhoをADPリボシル化してその機能を阻害するC3酵素をマイクロインジェクションすると、HGFによる細胞運動が完全に阻害された。このRho GDIやC3の作用は、活性型のRhoやADPリボシル化をうけない変異型Rhoと共にインジェクションすると認められなかった。また、Cキナーゼを活性化するTPAを作用させても細胞運動が引き起こされ、この作用はRho GDIやC3によって阻害された。細胞運動はRasやCa^<2+>とは直接関係していなかった。これらの結果から、HGFの受容体Metは何らかの機構でTPA感受性因子(Cキナーゼ?)を介してRhoを活性化し、その結果、細胞運動が引き起こされると考えられる。現在、TPA感受性因子がどのような機構でRhoの活性を制御しているか、Rhoがどのような機構で細胞運動を制御しているかを解析中である。Rasやその関連蛋白質の遺伝子の異常が細胞の異常増殖を引き起こすことはすでに判明しているが、これらのアナロジーからRhoとその関連蛋白質の遺伝子の異常ががん細胞の浸潤・転移に関与している可能性がでてきた。現在、RhoやRho関連蛋白質の遺伝子が浸潤・転移度の高いがん細胞で異常があるか否かも検討している。一方、Rasの活性制御蛋白質と標的蛋白質であるSmg GDS,REKSは共に私共の研究室で発見したものであるが、これらに関する本年度の研究も順調に進んだ。

Report

(2 results)
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (53 results)

All Other

All Publications (53 results)

  • [Publications] Miura,Y.: "Regulation of morphology by rho p21 and its inhibitory GDP/GTP exchange protein(rho GDI) in Swiss 3T3 cells." J.Biol.Chem.268. 510-515 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Itoh,T.: "The post-translational processing of ras p21 is critical for its stimulation of mitogen-activated protein kinase." J.Biol.Chem.268. 3025-3028 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Ullrich,O.: "Rab GDP dissociation inhibitor as a general regulator for the membrane association of rab proteins." J.Biol.Chem.268. 18143-18150 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Burstein,E.S.: "Regulation of the GTPase cycle of the neuronally expressed Ras-like GTP-binding protein Rab3A." J.Biol.Chem.268. 22247-22250 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kishida,S.: "Rab3A GTPase-activating protein-inhibiting activity of Rabphilin-3A,a putative Rab3A target protein." J.Biol.Chem.268. 22259-22261 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Sasaki,T.: "Consequences of weak interaction of rho GDI with the GTP-bound forms of rho p21 and rac p21." J.Biol.Chem.268. 23959-23963 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Orita,S.: "Comparison of kinetic properties between two mammalian ras p21 GDP/GTP exchange proteins,ras guanine nucleotide-releasing factor and smg GDP dissociation stimulator." J.Biol.Chem.268. 25542-25546 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Yamaguchi,T.: "Two functionally different domains of rabphilin-3A,rab3A p25/smg p25A-binding and phospholipid and Ca^<2+>-binding domains." J.Biol.Chem.268. 27164-27170 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Takaishi,K.: "Involvement of rho p21 and its inhibitory GDP/GTP exchange protein(rho GDI) in cell motility." Mol.Cell.Biol.13. 72-79 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Shirataki,H.: "Rabphilin-3A,a putative target protein for smg p25A/rab3A p25 small GTP-binding protein related to synaptotaqmin." Mol.Cell.Biol.13. 2061-2068 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kishi,K.: "Regulation of cytoplasmic division of Xenopus embryo by rho p21 and its inhibitory GDP/GTP exchange protein(rho GDI)." J.Cell Biol.120. 1187-1195 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Itoh,T.: "A protein factor for ras p21-dependent activation of MAP kinase through MAP kinase-kinase." Proc.Natl.Acad.Sci.USA. 90. 975-979 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Takaishi,K.: "Involvement of Rho p21 small GTP-binding protein and its regulator in the HGF-induced cell motility." Oncogene. 9. 273-279 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kawamura,M.: "Translocation of Ki-ras p21 between membrane and cytoplasm by smg GDS." Biochem.Biophys.Res.Commun.190. 832-841 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Sasaki,T.: "The nucleotide exchange rates of Rho and Rac small GTP-binding proteins are enhanced to different extents by their regulatory protein Smg GDS." Biochem.Biophys.Res.Commun.194. 1188-1193 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Sawai,T.: "Combination of arachidonic acid and guanosine 5'-0-(3-thiotriphosphate) induce translocation of rac p21s to membrane and activation of NADPH oxidase in a cell-free system." Biochem.Biophys.Res.Commun.195. 264-269 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Garrett,M.D.: "Interaction of Sec4 with GDI proteins from bovine brain,drosophila melanogaster and saccharomyces cerevisiae:conservation of GDI membrane dissociation activity." FEBS Lett.331. 233-238 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Motoike,T.: "Expression of smg p25A/rab 3A guanine nucleotide dissociation inhibitor(GDI) in neurons and glial cells from rat brain." Neuroscience Letters. 156. 87-90 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Miki,H.: "Association of Ash/Grb-2 with dynamin through the SH3 domain." J.Biol.Chem.(in press). (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] Wada,K.: "Localization of Rabphilin-3A,a putative target for Rab3A,at the sites of Ca^<2+>-dependent exocytosis in PC12 cells." Biochem.Biophys.Res.Commun.198. 158-165 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] Yaku,H.: "The Dbl oncogene product as a GDP/GTP exchange protein for the Rho family.Its properties in comparison with those of Smg GDS" Biochem.Biophys.Res.Commun.198. 811-818 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] Nakanishi,H.: "Kinetic properties of Ash/Grb2-interacting GDP/GTP exchange protein." Biochem.Biophys.Res.Commun.198. 1255-1261 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] Nishiyama,T.: "rac p21 is involved in insulin-induced membrane ruffling and rho p21 is involved in hepatocyte growth factor and 12-0-tetradecanoylphorbol-13-acetate(TPA)-induced membrane ruffling in KB cells." Mol.Cell.Biol.(in press). (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] Miura,Y.: "Regulation of morphology by rho p21 and its inhibitory GDP/GTP exchange prorein(rho GFI)in swiss 3T3 cells." J.Biol.Chem. 268. 510-515 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Itoh,T.: "The post-translatioally processing of ras p21 is critical for its stimulation of Mitogen-activated protein(MAP)kinase." J.Biol.Chem.in press. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Takaishi,K.: "Involvement of rho p21 and its inhibitory GDP/GTP exchange protein(rho GDI)in cell motility." Mol.Cell.Biol.13. 72-79 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Shirataki,H.: "Rabphilin-3A,aputative target protein for smgp25A/rab3A p25 small GTP-binding protein related to synaptotagmin." Mol.Cell.Biol.in press. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kishi,K.: "REgulation of cytoplasmic division of xemopus pmbryo by rho p21 and irs inhibitory GDP/GTP exchamge protein(rho GDI)." J.Cell Biol.in press. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Itoh,T.: "A novel protein factor for ras p21-dependent activation of Mitogen-activated protein kinade." Proc.Natl.Acad.Sci.USA. 90. 975-979 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] KAwamura,M.: "Translocation of Ki-ras p21 cetween membrane and cytoplasm by smg GDS." Biochem.Biophys.Res.Commun.in press. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Ando,S.: "Posr-trsnslational processing of rac p21s is important both for their interaceion with the GDP/GTP exxhange proteins and for their activation of NADPH oxidade." J.Biol.Chem.267. 25709-25713 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Regazzi,R.: "The small GTP-binding proteins in the cytosol of insulin-secreting cells are complexed to GDP dissociation inhibitor proteins." J.Biol.Chem.267. 17512-17519 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kikuchi,A.: "Functional interactions of stimulatory and ibhibitory GDP/GTP exchamge proteins and their common substrate small GTP0-binding protein." J.Biol.Chem. 267. 14611-14615 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Shirataki,H.: "A possible target protein for smg-25A/rab3A small HTP-binding protein." J.Biol.Chem.267. 10946-10949 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Mizuno,T.: "Regulation of the superoxese-gemerating NADPH oxidase by a small BTP-bindiog and its stomulatory and inhibitory GDP/GTP exchange proteins." J.Biol.Chem.267. 10215-10218 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Musha,T.: "The gerany lgeranyl moiety but not the methyl molety of the smg-25A/rab3A protein is essemtial for the interactions with membrame and its inhibitory GDP/GTP exchamge protein." J.Biol.Chem.267. 9821-9825 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Hirata,K.: "Involvement of rho p21 in the GTP-engabced calcium ion sensitivity of smooih muscle comtraction." J.Biol.Chem.267. 8719-8722 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Sugai,M.: "Epidermal cell differention inhibitor ADP-ribosylates small GTP-binding proteins and induces hyperplasia in epidermis." J.Biol.Chem.267. 2600-2604 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Fuhioka,H.: "Transforming and c-fos promoter/enhancerstimulating activities of a stimulatory GDP/GTP exchange protein for small GTP-binding proteins." J.Biol.Chem.267. 926-930 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Horiuchi,H.: "The posttranslational processing of ras p21 is critical for its stimulation of yeast adenylate cyclade." Mol.Cell.Biol. 12. 4515-4520 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Yoshida,Y.: "Microinjection of smg/rap1/Krev-1 p21 into swiss 3T3 cells induces DNA synthesis and morphological chamges." Mol.Cell.Biol.12. 3407-3414 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Ruggieri,R.: "RSR1,a ras-like gene homologous to Krev-1(smg21A/rap1A):Role in the development of cell polarity and interactions with the Ras pathwaty in Saccharomyces cerevisiae." Mol.Cell.Biol.12. 758-766 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Sakod,T.: "smg/rap1/Krev-1p21s dnhibit the signal pathway to the c-fos promoter/enhancer from c-ki-ras p21but not from c-raf-1 kinase in NIH3T3 cells." Oncogene. 7. 1705-1711 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kotane,K.: "Tte functional domain of the stimulatory GDP/GTP exchange protein(smg GDS)which interacts with the C-terminal geranylgerany lgerany lated region of rap1/Jrev-1/smg p21." Oncogene. 7. 1699-1704 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Abachi,M.: "Induction of smg p21/rap1A p21/krec-1p21 gene expression duriog phorbol ester-induced differentiation of human negakaryocytic leukemia cell line." Oncogene. 7. 323-329 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kikuchi,A.: "Molecular cloning of the human cDNA for a stimulatory GDP/GTP exchange protein for c-ki-ras p21 and smg p21." Oncogene. 7. 289-293 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Miura,Y.: "Phosphorylation of smg p21B/rap1B p21 by cyclic GMP-dependent protein kinade." FEBA Lett.297. 171-174 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Mizoguchi,A.: "Localization of smg p25A/rab3A p25,a small GTP-binding protein,at the active zone of the rat neuromuscular junction." Biochem.Biophys.Res.Commun.186. 1345-1352 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kuroda,S.: "Cooperative function of rho GDS and rho GDI to regulate rho p21 actuvation in smooth muscle." Biochem.Biophys.Res.Commun. 185. 473-480 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kim,Y.S.: "Effect of chlorpromazine on the smg GDS acton." Biochem.Biophys.Res.Commun.182. 1446-1453 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Hiraoka,K.: "Both sumulatory and inhibitory GDP/GTP exxhange proteins,smg GDS and rho GDI,are active on multiple small GTP-cinding proteins." Biochem.Biophys.Res.Commun.182. 921-930 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Regazzi,R.: "Characterezation of small-molecular-mass guaninenucleotide-binding regulatory proteins in insulin-secretiog cells and PC12 cells." Eur.J.Biochem.208. 729-737 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Takai,Y.: "Small GTP-cinding proteins." Int.Rev.Cytol.133. 187-230 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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