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EFFECTS OF RENIN-ANGIOTENSIN SYSTEM ON PROTEIN KINASE C ACTIVITY IN DIABETIC KIDNEY GLOMERULI

Research Project

Project/Area Number 11671057
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Kidney internal medicine
Research InstitutionTOKYO WOMEN'S MEDICAL UNIVERSITY

Principal Investigator

BABAZONO Tetsuya  TOKYO WOMEN'S MEDICAL UNIVERSITY SCHOOL OF MEDICINE, ASSISTANT PROFESSOR, 医学部, 講師 (70208718)

Co-Investigator(Kenkyū-buntansha) HIRAYAMA Michiyo  TOKYO WOMEN'S MEDICAL UNIVERSITY ASSISTANT, 医学部, 助手 (60297512)
TAKEDA Masanobu  TOKYO WOMEN'S MEDICAL UNIVERSITY ASSISTANT, 医学部, 助手 (80277110)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1999: ¥1,900,000 (Direct Cost: ¥1,900,000)
KeywordsDiabetic Nephropathy / Protein kinase C / Renin-angiotensin system / Hyaluronic acid / 糖尿病性賢症 / レニン・アンギオテンシン / レニン.アンギオテンシン系 / MAPキナーゼ
Research Abstract

To clarify the effects of protein kinase C in the pathogenesis of diabetic nephropathy, we conducted an animal study using streptozotocin-induced diabetic rats and in vitro study on cultured mesangial and renal interstitial fibroblast.
1) In streptozotocin-induced diabetic rat glomeruli, in situ FKC activity and specific PKC isoform expression were increased compared with nonnal rat glomeruli.
2) Both high glucose and angiotensin II increased PKC activity in cultured mesangial cells.
3) High glucose increased hyaluronal production by renal interstitial fibroblasts through the PKC-TGF-β cascade.
These results suggest that PKC is upregulated not only in mesangial cells but also renal interstitial fibroblasts in diabetes. PKC activation in diabetic kidney is at least in part through intrarenal angiotensin II.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] Takeda T, Babazono T, Nitta K, Iwamoto Y: "High Glucose stimulates hyaluronan production by renal interstitial fibroblasts through the PKC-TGF-β cascade"Metabolism. 50・7. 789-794 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Masanobu Takeda, Tetsuya Babazono, Kosaku Nitta, and Yasuhiko Iwqamoto: "High glucose stimulates hyaluronan production by renal interstitial fibroblasts through the protein kinase C and transforming growth factor-β cascade."Metabolism. 50 (7). 789-794 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Masanobu Takeda, Tetsuya Babazono, Kosaku Nitta, Yasuhiko Iwamoto: "High glucose stimulates hyaluronan production by renal interstitial fibroblasts through the PKC-TGF-β cascade"Metabolism. 50・7. 789-794 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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