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Related Experiment Videos

Sirolimus in transplantation

S M Stepkowski1, L Tian, M E Wang

  • 1Department of Surgery, University of Texas Medical School, Houston, USA.

Archivum Immunologiae Et Therapiae Experimentalis
|January 1, 1997
PubMed
Summary
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Low-dose sirolimus (SRL) combined with other immunosuppressants effectively prevents organ transplant rejection in various models. This combination therapy reduces toxicity and allows for lower individual drug doses in patients.

Area of Science:

  • Immunology
  • Pharmacology
  • Transplantation Medicine

Background:

  • Sirolimus (SRL) demonstrates efficacy in rodents and pigs but causes toxicity in dogs.
  • Cyclosporine (CsA) and Brequinar (BQR) combinations with SRL show promise in overcoming resistance and reducing side effects.

Purpose of the Study:

  • To evaluate the efficacy and safety of low-dose sirolimus combined with other immunosuppressants in various animal models.
  • To assess the synergistic effects of sirolimus and cyclosporine combinations.
  • To review clinical data on sirolimus in kidney transplant recipients.

Main Methods:

  • Testing sirolimus (SRL) alone and in combination with cyclosporine (CsA)/brequinar (BQR) in rodent and canine models.
  • Evaluating immunosuppression in CsA-resistant mouse models.

Related Experiment Videos

  • Assessing kidney allograft protection in dogs.
  • Analyzing synergistic interactions in CsA-sensitive rat models.
  • Reviewing clinical trial data.

    • Main Results:

    • SRL/CsA/BQR achieved potent immunosuppression in CsA-resistant mice.
    • SRL/CsA/BQR therapy protected canine kidney allografts without toxicity.
    • SRL/CsA combinations showed synergistic effects in rats.
    • Clinical trials confirm benefits of low-dose SRL in human kidney transplant recipients.

    Conclusions:

    • Combining low-dose sirolimus with standard immunosuppressants like CsA/BQR is effective and safe.
    • This combination therapy reduces acute rejection incidence and allows for drug dose reduction in transplant patients.