• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1992 Fiscal Year Final Research Report Summary

Glomerular basement membrane permeability factor in minimal change nephrotic syndrome

Research Project

Project/Area Number 02670440
Research Category

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

Allocation TypeSingle-year Grants
Research Field Pediatrics
Research InstitutionKobe University

Principal Investigator

YOSHIKAWA Norishige  Kobe University School of Medicine, Associate Professor, 医学部, 助教授 (10158412)

Project Period (FY) 1990 – 1992
Keywordsminimal change nephrotic syndrome / glomerular basement membrane permeability / proteinuria / peripheral blood mononuclear cell / anionic sites / vascular permeability factor / Northern blot analysis / mesangial cells
Research Abstract

Minimal change nephrotic syndrome(MCNS)is the most common form of nephrotic syndrome in children. However, the pathogenesis of MCNS remains unknown. Several investigators have been proposed suggesting that MCNS is immune-mediated disorder. Shalhoub postulated that lymphocytes in patients with MCNS produce a lymphokine that causes increased permeability of the glomerular basement membrane(GBM), resulting in proteinuria and nephrotic syndrome.
Supernatants of peripheral blood mononuclear cell culture from children with MCNS were tested for their ability to increase GBM permeability and for effects on anionic sites in the GBM. Supernatants from cultures of concanavalin A-stimulated peripheral blood mononuclear cells from patients with MCNS were infused into the renal arteries of normal rats. Infusion caused a significant reduction of anionic sites in the GBM and a significant increase in urinary albumin excretion. These findings show that stimulation of peripheral blood mononuclear cells from MCNS results in liberation of soluble substances which reduce polyanions in the GBM and increase GBM permeability.
Recently vascular permeability factor(VPF)has been purified from human lymphoma line. VPF increases fluid permeability from blood vessels. Northern blot analysis revealed that human peripheral blood mononuclear cells and glomerular mesangial cells expressed VPF mRNA. VPF protein was also detected in human mesangial cells. VPF infusion into rats resulted in a dosedependent increase in urinary albumin excretion. These findings indicate that mesangial cells and peripheral blood mononuclear cells produce VPF and VPF released from these cells induces albuminuria in MCNS.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] R.TANAKA: "Intusion of poripheral blood mononuclear cell products from nephrotic children increases albuminuria in rats." Neghron. 61. 35-41 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.KOKUI: "Cyclosporin reduces proteinuria in rats with aminonucleoside nephrosis." J.Pathol. 166. 297-301 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kokui K, Yoshikawa N, Nakamura H, Itoh H: "Cyclosporin reduces proteinuria in rats with aminonucleoside nephrosis." J Pathol. 166(3). 297-301 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tanaka R, Yoshikawa N, Nakamura H, Ito H: "Infusion of peripheral blood mononuclear cell products from nephrotic children increases albuminuria in rats." Nephron. 60. 35-41 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitano Y, Yoshikawa N, Nakamura H: "Glomerular anionic sites in minimal change nephrotic syndrome and focal segmental glomerulosclerosis." Clinical Nephrol. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Iijima K, Yoshikawa N, Connolly DT, Nakamura H: "Human mesangial cells and peripheral blood mononuclear cells produce vascular permeability factor." Kidney Int.In submission. (1993)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1994-03-24  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi