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Nephrotoxicity of immunosuppressive drugs: new insight and preventive strategies

A J Olyaei1, A M de Mattos, W M Bennett

  • 1Division of Nephrology, Hypertension and Clinical Pharmacology, Oregon Health Sciences University and Solid Organ and Cellular Transplantation, Legacy Good Samaritan Hospital, Portland, Oregon 97201, USA. olyaeia@ohsu.edu

Current Opinion in Critical Care
|January 24, 2002
PubMed

Insights

Calcineurin inhibitors like cyclosporine and tacrolimus prevent organ rejection but can cause kidney damage. Alternative immunosuppressants may reduce this nephrotoxicity, improving transplant outcomes.

Area of Science:

  • Nephrology
  • Immunosuppression
  • Transplantation

Background:

  • Cyclosporine and tacrolimus are vital immunosuppressants that prevent allograft rejection and improve survival.
  • However, these calcineurin inhibitors can induce dose-dependent and chronic nephrotoxicity, potentially harming allograft survival and leading to end-stage renal disease.
  • Therapeutic drug monitoring shows limited efficacy in managing calcineurin inhibitor-induced nephrotoxicity.

Purpose of the Study:

  • To review the mechanisms and implications of calcineurin inhibitor-induced nephrotoxicity.
  • To explore strategies for mitigating nephrotoxicity and improving long-term transplant outcomes.

Main Methods:

  • Literature review of studies on calcineurin inhibitor nephrotoxicity.
  • Analysis of pathophysiological mechanisms implicated in immunosuppressive drug toxicity.
  • Evaluation of alternative immunosuppressive agents and protocols.

Main Results:

  • Nephrotoxicity mechanisms include renal vasoconstriction, altered endothelin-1 and nitric oxide balance, and increased TGF-beta expression.
  • Reducing calcineurin inhibitor dosage or employing non-nephrotoxic agents can minimize toxicity risks.
  • Newer agents like mycophenolate and sirolimus enable calcineurin inhibitor reduction or elimination without compromising graft survival.

Conclusions:

  • Calcineurin inhibitor nephrotoxicity poses a significant threat to transplant recipients.
  • Strategies focusing on dose reduction or substitution with non-nephrotoxic agents are crucial for preserving renal function and enhancing long-term allograft and patient survival.

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