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Oxidant-induced apoptosis of glomerular cells: intracellular signaling and its intervention by bioflavinoid

M Kitamura1, Y Ishikawa

  • 1Department of Medicine, University College London Medical School, England, United Kingdom. m.kitamura@medicine.ucl.ac.uk

Kidney International
|December 28, 1999
PubMed

Insights

Oxidant stress drives glomerular disease by triggering mesangial cell apoptosis via specific signaling pathways. The bioflavonoid quercetin shows potential to inhibit this cell death, offering therapeutic possibilities for kidney disease.

Area of Science:

  • Nephrology
  • Cell Biology
  • Biochemistry

Background:

  • Oxidant stress is a key factor in the pathogenesis of various glomerular diseases.
  • Mesangial cell apoptosis, induced by oxidative stress, contributes to kidney damage.
  • Understanding these pathways is crucial for developing targeted therapies.

Purpose of the Study:

  • To elucidate intracellular signaling pathways in oxidant-initiated mesangial cell apoptosis.
  • To investigate the potential of quercetin as an apoptosis inhibitor in glomerular cells.
  • To explore the mechanisms and therapeutic utility of quercetin in glomerular disease.

Main Methods:

  • Description of intracellular signaling pathways, focusing on the tyrosine kinase-c-Jun/AP-1 pathway.
  • Evaluation of quercetin's effects on glomerular cell apoptosis.
  • Discussion of quercetin's antiapoptotic mechanisms.

Main Results:

  • Identification of specific signaling cascades, including the tyrosine kinase-c-Jun/AP-1 pathway, in oxidant-induced mesangial cell death.
  • Demonstration of quercetin's potential to inhibit apoptosis in glomerular cells.
  • Exploration of the molecular mechanisms underlying quercetin's protective effects.

Conclusions:

  • Oxidant stress-induced apoptosis of mesangial cells involves specific intracellular signaling.
  • Quercetin emerges as a promising therapeutic agent for glomerular diseases due to its antiapoptotic properties.
  • Further research into quercetin's mechanisms could lead to novel treatments for kidney conditions.

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