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Decrease of apoptosis rate in patients with renal transplantation treated with mycophenolate mofetil.

F J Pardo-Mindán1, P Errasti, A Panizo

  • 1Department of Pathology, Clínica Universitaria, Universidad de Navarra, Pamplona, Spain. jpardo@unav.es

Nephron
|July 9, 1999
PubMed
Summary
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Mycophenolate mofetil (MMF) treatment in kidney transplant patients did not alter cell proliferation rates. However, MMF significantly reduced apoptosis in tubular epithelium, glomerular, and interstitial cells, indicating a protective effect.

Area of Science:

  • Immunology
  • Nephrology
  • Transplantation Medicine

Background:

  • Mycophenolate mofetil (MMF) is an immunosuppressant that inhibits lymphocyte proliferation by blocking inosine monophosphate dehydrogenase.
  • MMF is crucial in preventing acute graft rejection in organ transplantation.

Purpose of the Study:

  • To investigate the effect of MMF on apoptosis and proliferation rates in non-lymphocyte cells within kidney allografts.
  • To compare MMF's impact on glomerular, tubular, interstitial, and endothelial cells against standard triple therapy.

Main Methods:

  • Retrospective analysis of renal allograft biopsies from patients receiving MMF versus azathioprine-based triple therapy.
  • Assessment of cell proliferation using MIB-1 antibody and apoptosis using TUNEL assay.
  • Quantitative evaluation of MIB-1 and TUNEL positive cells in glomeruli, tubules, interstitium, and endothelium.

Related Experiment Videos

Main Results:

  • No significant difference in MIB-1 proliferation rates between MMF and azathioprine groups.
  • Significantly lower apoptotic rates observed in tubular epithelium, glomerular, and interstitial cells in the MMF group.
  • Apoptosis rates in endothelial cells showed no significant difference between the groups.

Conclusions:

  • MMF treatment in kidney transplant recipients does not impact allograft cell proliferation rates.
  • MMF demonstrates a significant reduction in tubular epithelial cell apoptosis.
  • MMF may offer a protective effect by decreasing apoptosis in key kidney allograft cell types.