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Analysis of a novel gene DP5 that induces programmed cell death

Research Project

Project/Area Number 10480219
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field Neurochemistry/Neuropharmacology
Research InstitutionFukushima Medical University School of Medicine

Principal Investigator

WANAKA Akio  Fukushima Medical University, School of Medicine, Professor, 医学部, 教授 (90210989)

Co-Investigator(Kenkyū-buntansha) MORI Tetsuji  Fukushima Medical University, School of Medicine, Lecturer, 医学部, 助手 (30285043)
YOKOYA Sachihiko  Fukushima Medical University, School of Medicine, Associate Professor, 医学部, 助教授 (00045642)
清澤 秀孔  福島県立医科大学, 医学部, 助手 (30295422)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥13,900,000 (Direct Cost: ¥13,900,000)
Fiscal Year 2000: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1999: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 1998: ¥7,500,000 (Direct Cost: ¥7,500,000)
KeywordsApoptosis / DP5 / Bcl-2 / BH3 domain / neuron / amyotrophic lateral sclerosis / 神経細胞 / 強制発現 / Yeast Two hybrid / Bcl-2 ファミリー / BH3 ドメイン / 脳虚血
Research Abstract

We cloned a novel gene, whose expression was upregulated when cells undergo apoptosis, and named DP5. DP5 gene encoded a protein consisting of 92 amtino acids. DP5 protein had a BH3 (Bcl-2 homology domain 3) domain and had apoptosis-inducing activity when overexpressed in cultured neurons. These results suggested that DP5 was a novel proapoptotic member of the Bcl-2 family. We investigated distribution pattern of DP5 mRNA in the developing rat embryo by in situ hybridization and found that it was specifically expressed in the embryonic spinal motoneurons and autonomic ganglia. These tissues are known to prune superfluous neurons by apoptotic mechanism. Therefore, the DP5 gene might be involved in such apoptotic process. We also detected moderate DP5 mRNA expression in the postnatal hippocampus and cerebral cortex. We noted significant upregulation of the DP5 gene expression in the adult hippocampus aud cerebral cortex in response to ischemic insults, suggesting that DP5 is also involved in the ischemic neuronal death. Recent studies revealed an increasing number of BH3 only proteins such as Bik, Bim, and Blk. Among them, Bim specifically interacted with cytoskeletal component. This interaction regulated Bim's cell-death inducing activity ; detachment from cytoskeleton promoted Bim to relocate to mitochondrial membrane, and thereby induced apoptosis. Such a regulatory mechanisms may exist in the case of DP5. We searched for DP5-interacting molecule with yeast-two hybrid method. We have so far found three candidates, one of which is hn RNP.Possible regulatory mechanisms by these candidates are to be investigated in near future. Finally we investigated possible involvement of DP5 in degenerative neurological disease. We found that Harakiri (human homolog of DP5) was specifically expressed in the motoneurons of the amyotrophic lateral sclerosis patients.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] Junko Takeda et al.: "Anti-tumor Immunity against CT26 Colon Tumor in Mice Immunized with Plasmid DNA Encoding beta-Galactosidase Fused to an Envelope Protein of Endogenous Retrovirus."Cellular Immunology. 204・1. 11-18 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Yoshihiro Tanno et al.: "Localization of huntingtin-interacting protein-2 (Hip-2) mRNA in the developing mouse brain."J Chem Neuroanat. 17・2. 99-107 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Yutaka Honma et al.: "Identification of a novel gene, OASIS, which encodes for a putative CREB/ATF family transcription factor in the long-term cultured astrocytes and gliotic tissue."Mol Brain Res. 69・1. 93-103 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Yutaka Honma et al.: "Eos : a novel member of the lkaros gene family expressed predominantly in the developing nervous system."FEBS Lett. 447・1. 76-80 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kazunori Imaizumi et al.: "The cell death-promoting gene DP5, which interacts with the BCL2 family, is induced during neuronal apoptosis following exposure to amyloid beta protein."J Biol Chem. 274・12. 7975-7981 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Ken-ya Kanazawa et al.: "Expression pattern of a novel death-promoting gene, DP5, in the developing murine nervous system."Mol Brain Res. 54・2. 316-320 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Takeda J Sato Y Kiyosawa H Mori T Yokoya S Irisawa A Miyata M Obara K Fujita T Suzuki T Kasukawa R Wanaka A: "Anti-tumor immunity against CT26 colon tumor in mice immunized with plasmid DNA encoding beta-galactosidase fused to an envelope protein of endogenous retrovirus."Cell Immunol. 204(1). 11-8 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tanno Y Mori T Yokoya S Kanazawa K Honma Y Nikaido T Takeda J Tojo M Yamamoto T Wanaka A: "Localization of huntingtin-interacting protein-α (Hip-2) mRNA in the developing mouse brain."J Chem Neuroanat. 17(2). 99-107 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tojo M Mori T Kiyosawa h Honma Y Tanno Y Kanazawa KY Yokoya S Kaneko F Wanaka A: "Expression of sonic hedgehog signal transducers, patched and smoothened, in human basal cell carcinoma."Pathol Int. 49(8). 687-94 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Honma Y Kanazawa K Mori T Tanno Y Tojo M Kiyosawa H Takeda J Nikaido T Tsukamoto T Yokoya S Wanaka A: "Identification of a novel gene, OASIS, which encodes for a putative CREB/ATF family transcription factor in the long-term cultured astrocytes and gliotic tissue."Mol Brain Res. 69(1). 93-103 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Honma Y Kiyosawa H Mori T Oguri A Nikaido T Kanazawa K Tojo M Takeda J Tanno Y Yokoya S Kawabata I Ikeda H Wanaka A: "Eos : a novel member of the Ikaros gene family expressed predominantly in the developing nervous system."FEBS Lett. 447(1). 76-80 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Imaizumi K Morihara T Mori Y Katayama T Tsuda M Furuyama T Wanaka A Takeda M Tohyama M: "The cell death-promoting gene DP5, which interacts with the BCL2 family, is induced during neuronal apoptosis following exposure to amyloid beta protein."J Biol Chem. 274(12). 7975-81 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kanazawa K Imaizumi K Mori T Honma Y Tojo M Tanno Y Yokoya S Niwa S Tohyama M Takagi T Wanaka A: "Expression pattern of a novel death-promoting gene, DP5, in the developing murine nervous system"Mol Brain Res. 54(2). 316-20 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Junko Takeda et al.: "Anti-tumor Immunity against CT26 Colon Tumor in Mice Immunized with Plasmid DNA Encoding beta-Calactosidase Fused to an Envelope Protein of Endogenous Retrovirus."Cellular Immunology. 204・1. 11-18 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Honma,Y.,Kiyosawa,H. et al: "Eos a novel member of the ikaros gene family expressed predominantly in the doveloping nervous system."FEBS lett.. 447. 76-80 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Imaizumi,K.,Morihara,T., et al.: "The Cell Death-promoting Gene DP5, Which Interacts with the BCL2 Family. Is Induced during Neuronal Apoptosis Following Exposure to Amyloid beta Protein."J Biol Chem. 274. 7975-7981 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Honma Y.,Kanazawa,T. et al: "Identification of a novel gene, OASIS, which encodes for a putative CREB/ATF family transcription factor in the long-term cultured astrocytes and gliotic tissue."Mol Brain Res.. 69. 93-103 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Tojo,M.T.Mori, et al: "Expression of patched, and smoothened genes in the basal cell carcinoma."Pathology International. 49. 687-694 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Tanno,Y.,T.Mori, et al.: "Localization of huntingtin-interacting protein (hip-2) mRNA in the developing mouse brain."J Chem Neuroanat.. 17. 99-107 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kanazawa K.et al.: "Expression pattern of a novel death-promoting gene, DP5, in the developing murine nervous system." Mol.Brain Res.54. 316-320 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kitanaka J.et al.: "Genomic organization and chromosomal location of a LIM/homeodomain gene, Lhx8." Genomics. 49. 307-309 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Matsumoto K.et al.: "Molecular cloning and distinct developmental expression pattern of spliced forms of a novel zinc finger gene wiz in the mouse cerebellum." Mol.Brain Res.61. 179-189 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kiryu-Seo, S.et al.: "A sequence-specific splicing activator,tra2beta, is up-regulated in response to nerve injury." Mol Brain Res. 62. 220-223 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Imaizumi, K.et al.: "The Cell Death-promoting Gene DP5, Which Interacts with the BCL2 Family, Is Induced during Neuronal Apoptosis Following Exposure to Amyloid beta Protein." J Biol Chem. 274. 7975-7981 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Homma, Y.et al.: "Eos : a novel member of the ikaros gene family expressed predominantly in the developing nervous system." FEBS lett.in press. (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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