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Development in immunochemical control of regulatory enzymes and receptors concerned in the lipid metabolism and the application for low-fat meat production

Research Project

Project/Area Number 10556060
Research Category

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

Allocation TypeSingle-year Grants
Section展開研究
Research Field Applied animal science
Research InstitutionTOUHOKU UNIVERSITY

Principal Investigator

AKIBA Yukio  Tohoku university, Graduate School of Agricultural Science, Professor, 大学院・農学研究科, 教授 (30005631)

Co-Investigator(Kenkyū-buntansha) HORIKAWA Hiroshi  Itochu Feed Mills Co., Ltd., Director, 総合技術研究部, 部長
TAMURA Keizi  Saikin Kagaku institute Co, , Ltd., Director, 細菌化学研究所, 取締役所長
SATO Kan  Tohoku university, Graduate School of Agricultural Science, Research assistant, 大学院・農学研究科, 助手 (20250730)
高橋 和昭  東北大学, 大学院・農学研究科, 助手 (80183440)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥11,400,000 (Direct Cost: ¥11,400,000)
Fiscal Year 2000: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1999: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1998: ¥7,700,000 (Direct Cost: ¥7,700,000)
KeywordsFat accumulation / Low fat meat / Monoclonal antibodies / VLDL receptor / lipoprotein receptor / Lipid transfer protein / Chicken / リポプロテインリパーゼ
Research Abstract

The present study was conducted to identify enzymes and receptors involved in fat accumulation and to control by immunochemical methods to reduce obesity domestic animals and consequently produce "Low fat meat".
1. Adipose tissue lipoprotein lipase (LPL)
We could have obtained 24 positive clones of hybridoma to bind specifically with chicken LPL and 3 clones out of 24 were effective to reduce LPL activity in adipose tissues. In chickens received continuous infusion of LPL antibody (CLP-16) for 14 days, adipose fat pad weight was significantly lower than the control chickens whereas the body weight decreased to a small extent. These findings suggest that persistent administration of anti-LPL monoclonal antibody is effective mean to modify LPL activity and consequently manipulate fatness in broiler chickens.
2. Adipose tissue lipoprotein receptor (LR)
It was shown following western blot analysis using antiserum of various LRs (LRP, LRP380, and LR8) that LR8 was present in chicken adipose tissues and concerned in the chicken adiposity. However, administration of LR8 antibody did not modify VLDL uptake to chicken adipocytes.
3. Hepatic lipoprotein receptor (HLR)
It was not able to identify the new cDNA clone of chicken HLR though the screening of chicken liver cDNA library. However, new LDL binding proteins (100 and 130kDa) were detected in the ligand blot analysis in chicken liver membrane. The new LDL binding proteins were characterized by no-binding Ca ion and receptor associated protein (RAP), which were different from LDL receptor family obtained in mammals.
4. Plasma cholesteryl ester transfer protein (CETP)
The CETP activity in chicken plasma was high before laying eggs whereas that in laying hens was not detectable. These results suggested that chicken CETP play an important role to the cholesterol metabolism. We have been trying to obtain chicken CETP cDNA clone using human CETP probe, while at present chicken CETP cDNA sequence is still not available.

Report

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

    (13 results)

All Other

All Publications (13 results)

  • [Publications] Sato,K.,Akiba,Y.,Chida,Y.and Takahashi,K.: "Lipoprotein hydrolysis and fat accumulation in chicken adipose tissue are reduced by chronic administration of Lipoprotein lipase monoclonal antibodies."Poultry.Sci.. 78. 1286-1291 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sato,K.,Takahashi,T.,Takahashi,Y.,Shiono,H.,Katoh,N.and Akiba,Y.: "Preparation of chylomicrons and VLDL with monoacid-rich triacylglycerol and characterization of kinetic parameters in lipoprotein lipase-mediated hydrolysis in chickens."J.Nutr.. 129. 126-131 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 佐藤幹,秋葉征夫: "鶏脂肪組織リポプロテインリパーゼ反応の種特異性の実証"栄養生理研究会報. 43. 37-55 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Akiba,Y.: "Potential of nutrition in the control of growth and meat quality in broilers."J.Poult.Sci.. 38. 67-80 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Akiba,Y.: "Improvement of broiler meat quality."Korean J.Poult.Sci.. 26. 97-108 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sato, K., Akiba.Y., Chida, Y.and Takahashi, K.: "Lipoprotein hydrolysis and fat accumulation in chicken adipose tissue are reduced by chronic administration of Lipoprotein lipase monoclonal antibodies."Poultry. Sci.. 78. 1286-1291 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sato, K., Takahashi, T., Takahashi, Y., Shiono, H., Katoh, N.and Akiba, Y.: "Preparation of chylomicrons and VLDL with monoacidrich triacylglycerol and characterization of kinetic parameters in lipoprotein lipase-mediated hydrolysis in chickens."J.Nutr.. 129. 126-131 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sato, K., Akiba, Y.: "Characterization of chicken lipoprotein lipase in adipose tissue."J.Nutr.Physiol.Soc.. 43. 37-55 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Akiba, Y.: "Jmprovement of broiler meat quality."Korean J.Poult.. 26. 97-108 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Akiba, Y.: "Potential of nutrition in the control of growth and meat quality in broilers."I.Poult.Sci.. 38. 67-80 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sato,K,Takahashi,T.,Takahashi,Y.,Shiono,H,Katoh,N.and Akiba,Y.: "Preparation of chylomicrons and VLDL with monoacid-rich triacylglycerol and characterization of kinetic parameters in lipoprotein lipase-mediated hydrolysis in chickens."J.Nutr.. 129. 126-131 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 佐藤幹・秋葉征夫: "鶏脂肪組織リポプロテインリパーゼ反応の種特異性の実証"栄養生理研究会報. 43. 37-55 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kan Sato: "Lipoprotein hydrolysis and fat accumulation in chicken adipose tissues are reduced by chronic administration of lipoprotein lipase monoclonal antibodies"Poultry Science. 78. 1286-1291 (1999)

    • Related Report
      1999 Annual Research Report

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

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