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Pathophysiological significance of autoantibody to liver plasma membrane-bound cytoskeleton-related proteins in liver diseases.

Research Project

Project/Area Number 61480187
Research Category

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

Allocation TypeSingle-year Grants
Research Field Gastroenterology
Research InstitutionUniversity of Tokyo

Principal Investigator

TODA Gotaro  Associate Professor Faculty of Medicine, University of Tokyo, 医学部(病), 助教授 (40090500)

Co-Investigator(Kenkyū-buntansha) OKADA Yoshihiro  Medical Staff University of Tokyo Hospital, 医学部, 医員 (80177063)
IKEDA Yusei  Assistant Professor Health Service Center, Univeristy of Tokyo, 保健センター, 助手 (80133073)
Project Period (FY) 1986 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1987: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1986: ¥3,500,000 (Direct Cost: ¥3,500,000)
KeywordsCalmodulin / Cytoskeleton / Liver plasma membrane / Cytoskeleton-related proteins / Chronic hepatitis / Acute hepatitis / Liver cirrhosis / Calmodulin antibody / 自己抗体 / 肝疾患 / 【Ca^π】結合タン白 / 自己免疫性肝炎
Research Abstract

In this study, we found the autoantibody to calmodulin (CaM) which had never been described, and concentrated on clarification of clinical and pathophysiological significance of this autoantibody. The autoantibody to CaM (CaM antibody) was assayed by enzyme-linked immunosorbent assay (ELISA). Immunoglobulin bound to bovine brain CaM fixed to immunoplate was determined using HRP-conjugated antihuman IgG, IgM ad IgA. CaM antibody was decreased by absorption of serum with bovine brain CaM or human erythrocyte CaM, not with actin, tropnin C or DNA. The presence of CaM antiobody was also confirmed by immunoblotting method. IgG class antibody was found in the sera from the patients with collagen diseases as well as those with chronic liver diseases, whereas IgM class antiobody was detected more frequently in the pationts with chronic liver diseases than in those with collagen diseases, In some serum samples, the antibody titres were higher in the presence of free Ca^<++> than in its absence, suggesting that they recognized conformations of CaM. Using CaM-conjugated agarose column, we found that there were three types of antibody : antibodies that bound to Ca^<++>-bound CaM, Ca^<++>-free CaM and both of these. CaM antiobody inhibited phosphodiesterase activity. However it remained for future study whether CaM antibody was involved in the liver cell injury or not.

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] 池田有成: 日本消火器病学会雑誌. 83. 2092 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 池田有成: 肝臓. 28. 20-27 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 池田有成: 日本臨床代謝学会記録. 24. 198-199 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda: Hepatology. 7. 285-293 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda: Biochem. Biophys. Res. Commun. 144. 191-197 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 池田有成: 肝臓. 28. 1401 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Takashi Umeda: Cellular and Molecular Prology. 33. 507-513 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 戸田剛太郎: 病態生理. 6. 801-804 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda他;ed. by K. kane;S. mori;T. Sugisaki;M. Torisu: "Cellular, Molecular and Genetic Approaches to Immunodiagneosis and Immunctherapy" Union of Tokyo Pres, 9 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda: "Detection of autoantibody to calmodulin in liver disease and its clinical relevance" Japanese Journal of Gastroenterology. 83. 2092- (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda: "Study on the clinical relevance of calmodulin antibody in chronic liver diseases." Acta Hepatologica Japonica. 28. 20-27 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda: "Autoantibody that recognizes conformations of calmodulin in the serum from patient with autoimmune hepatitis." Proceedings of Japanese Society of Clinical Metabolism. 24. 198-199 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda: "Anticalmodulin autoantibody in liver diseases : A new antibody against a cytoskeletonreleted protein." Hepatology. 7. 285-293 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda: "Antiobody that recognizes conformations of calmodulin in the serum from patient with chronic active hepatitis." Bichem.Biophys.Res.Commun.144. 191-197 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda: "Pathophysiological role of anti-calmodulin antibody in acute hepatitis." Acta Hepatologica Japonica. 28. 1401- (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Takeshi Umeda: "Anti-calmodulin autoantibody in the sera of patients with malignancies of urogenital tract : A new antibody to a cytoskeleton-related protein." Celluar and Molecular Biology. 33. 507-513 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Gotaro Toda: "Pathophysiological significance of autoanitibody to liver plasma membrane-bound cytoskelaton-related proteins in liver diseases - Autoantibody to calmodulin." Pathophysiology. 6. 801-804 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yusei Ikeda: University of Tokyo Press. Occurrence of antibody against calmodulin in chronic liver diseases. in "Cellular,Molecular and Genetic Appraches to Immunodiagnosis and Immunotherapy", pp453-461 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 池田有成: 日本消化器病学会雑誌. 83. 2092-2092 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 池田有成: 肝臓. 28. 20-27 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 戸田剛太郎: 日本内科学会雑誌. 75. 237-237 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 池田有成: 肝臓. 27(SUPPL). 147-147 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] GOTARO TODA: Hepatology. 6. 775-775 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] YUSEI IKEDA: Hepatology. 7. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] GOTARO TODA: "Chronic bepatitis" Elsevier Publishing Co., 193-198 (1986)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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