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Cyclosporine nephrotoxicity.

J M Grinyó1, J M Cruzado

  • 1Nephrology Department, Hospital Universitari de Bellvitge, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain. jgrinyo@csub.scs.es

Transplantation Proceedings
|March 26, 2004
PubMed
Summary

Cyclosporine, an immunosuppressant, aids organ transplant survival by inhibiting calcineurin. However, its long-term use causes kidney damage, necessitating new strategies for immunosuppression.

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Area of Science:

  • Nephrology
  • Immunology
  • Pharmacology

Background:

  • Cyclosporine is a prodrug immunosuppressant targeting calcineurin, a phosphatase crucial for T cell activation and cytokine regulation.
  • Calcineurin inhibition by cyclosporine leads to immunosuppression and nephrotoxicity, affecting organs like the kidney.
  • Cyclosporine significantly improved renal allograft survival by reducing acute rejection episodes.

Purpose of the Study:

  • To review the long-term impact of cyclosporine on renal allografts and explore emerging immunosuppression concepts.
  • To address the undefined targets for maintenance immunosuppression and the unknown extent of chronic cyclosporine nephrotoxicity.
  • To discuss the role of new technologies like DNA microarrays in differentiating drug toxicity from other causes of graft deterioration.

Main Methods:

  • Literature review and analysis of historical data on renal transplantation outcomes.
  • Discussion of the mechanism of action of cyclosporine and its effects on calcineurin.
  • Exploration of emerging technologies and future directions in immunosuppression.

Main Results:

  • Cyclosporine has been instrumental in improving graft survival in renal transplantation.
  • Chronic cyclosporine nephrotoxicity remains a significant concern with unclear magnitude due to diagnostic limitations.
  • Chronic renal failure is a recognized adverse event post-transplantation of non-renal organs, associated with increased mortality.

Conclusions:

  • While cyclosporine has benefited organ transplantation, its long-term nephrotoxicity requires further investigation.
  • New technologies like DNA microarrays may help distinguish drug toxicity from other causes of graft damage.
  • Exploring calcineurin-free immunosuppression strategies is warranted for future advancements in transplantation.

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