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Approach of a new pain-regulated substance spinophrin from bovine spinal cord and its application

Research Project

Project/Area Number 13671627
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Anesthesiology/Resuscitation studies
Research InstitutionTHE TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE

Principal Investigator

HAZATO Tadahiko  THE TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE, MEDICAL R&D CENTER, PRINCIPAL SCIENTIST, 東京都臨床医学総合研究所, 副参事研究員 (60109949)

Co-Investigator(Kenkyū-buntansha) NISHIMURA Kinya  JUNTENDO UNIVERSITY, SCHOOL OF MEDICINE, ASSOCIATE PROFESSOR, 医学部・麻酔学教室, 助教授 (80164581)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2002: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2001: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsSpinorphin / Enkephalin / Spinal Cord / Pain / Opioid / DPPIII / オピオイド / enkephain
Research Abstract

We found a novel endogenous inhibitor that modulated enkephalin activity and purified it from spinal cord based on its inhibitory activity toward enkephalin-degrading enzymes. Structural analysis revealed the factor to be L-V-V-Y-P-W-T and it was named spinophrin. It inhibits dipeptidyl peptidaseIII(EC3.4.14.4:DPPIII) as well as aminopeptidase(EC3.4.1:AP), neutral endopeptidase(EC3.4.24.11: NEP), angiotensin-converting enzyme (EC3.4.15.1:ACE) from monkey brain, especially to DPPIII(Ki: 5.1x10-7). Spinorphin also inhibited polymorphonuclear neutrophil(PMN) function by suppressing FMLP binding to its receptor on PMNs. Recently we reported that this inhibitor against DPP111 significantly inhibited bradykinin-induced responses. It showed analgesia in a different manner compared with morphine. Its analgesia may be caused by an inhibitory activity toward enkephalin-degrading enzyme, DPPIII. It would be interesting to determine whether spinorphin or more active related compounds inhibit neuropathic pain, known to be insensitive to morphine. Spinorphin plays important roles in pain and further search of its analogues may lead to finding of a novel type of drugs which will be useful for various clinical application

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Hazato T: "A new pain regulated substance spinorphin from spinal cord"Jpn.J.Pharmacol. 88,Suppl.1. 138 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Shimamura M: "A hypoxia-dependent nitromidazole KIN-841 inhibits angiogenesis by blocking production of angiogenic factor"Brit.J.Caner. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yamamoto Y: "Spinorphin as an Endogenous Inhibitor of Enkephalin-degrading Enzyame Roles"Current Protein and Peptide Sciences. 3. 587-599 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 佐藤 洋: "脳脊髄液中におけるエンケファリン代謝酵素dipeptidyl peptidase(DPPIII)の動態"麻酔. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 羽里 忠彦: "食肉に関する助成研究調査成果報告書"伊藤記念財団. 4 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yamazaki, T: "Effects of spinorphin and tynorphin on synaptic transmission in rat hippocampal slices"Eur. J. Pharmacol.. 413. 173-178 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Shimamura,M: "Inhibition of angiogenesis by humulone, a bitert acid from beer hop"Biochem.Biophys. Res. Commun.. 289. 220-224 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Honda, M: "Spinorphin, an endogenous inhibitor of enkephalin-degrading enzymes, potentiates leu-enkephalin-induced anti-allodynic and anti-nociceptive effects in mice"Jpn. J. Pharmacol.. 87. 261-267 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hazato, T: "A new pain regulated substance spinorphin from spinal cord"Jpn. J. Pharmacol.. 88,Suppl.1. 138 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yamamoto, Y: "Spinorphinas an endogenous inhibitor of enkephalin-degrading enzymes : Roles in pain and inflammation. Current"Potein and Peptide Sciences. 3. 587-599 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hazato T: "A new pain regulated substance spinorphin from spinal cord"Jpn. J. Pharmacol. 88,Suppl.1. 138P (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Shimamura M: "A hypoxia-dependent nitroimidazole KIN-841 inhibits angiogenesis by blocking production of angiogenic factor"Brit. J. Cancer. (In press).

    • Related Report
      2002 Annual Research Report
  • [Publications] Yamamoto Y: "Spinorphin as an Endogenous Inhibiotor of Enkephalin-degrading Enzyame Roles"Current Protein and Peptide Sciences. 3. 587-599 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 佐藤 洋: "脳脊髄液中におけるエンケファリン代謝酵素dipeptidyl peptidase(DPPIII)の動態"麻酔. (印刷中).

    • Related Report
      2002 Annual Research Report
  • [Publications] 羽里 忠彦: "食肉に関する助成研究調査成果報告書"伊藤記念財団. 4 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yamazaki T: "Effects of spinorphin and tynorphin on synaptic transmission in rat hippocampal slices"Eur J Pharmacol. 413. 173-178 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shimamura M: "Inhibition of angiogenesis by humulone, a bitter acid from beer hop"Biochem Biophys Res Commun. 289. 220-224 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Honda M: "Spinorphin, an endogenous inhibitor of enkephalin-degrading enzymes, potentiates Leu-enkephalin-induced anti-allodynic and antinociceptive effects in mice"Jpn J. Pharmacol. 87. 261-267 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Hazato T: "A new pain regulated substances spinorphin from spinal card"Jpn J. Pharmacol. 88. 138 (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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