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Related Experiment Videos

Experimental hyperthermic isolation-perfusion using cis-diamminedichloroplatinum(II).

A G Wile, M Y Nahabedian, D A Plumley

    Cancer Research
    |July 1, 1983
    PubMed
    Summary

    Regional hyperthermia and chemotherapy with cis-diamminedichloroplatinum(II) (DDP) showed no benefit for VX-2 carcinoma in rabbits. Hyperthermic DDP perfusion caused significant tissue necrosis, suggesting cautious DDP use in clinical isolation-perfusion.

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    Area of Science:

    • Oncology
    • Cancer Research
    • Experimental Therapeutics

    Background:

    • VX-2 carcinoma is a rabbit model used in cancer research.
    • Regional hyperthermia and chemotherapy are potential cancer treatment modalities.
    • Isolation-perfusion is a technique for delivering chemotherapy regionally.

    Purpose of the Study:

    • To evaluate the efficacy of regional hyperthermia and chemotherapy using cis-diamminedichloroplatinum(II) (DDP) for local control and cure of VX-2 carcinoma in rabbits.
    • To assess the safety and tolerance of DDP administration via isolation-perfusion under normothermic and hyperthermic conditions.

    Main Methods:

    • Rabbits bearing VX-2 carcinoma were divided into five experimental groups.
    • Isolation-perfusion with cis-diamminedichloroplatinum(II) (DDP) was employed.

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  • Tumor inocula size and treatment intervals were varied across groups.
  • Animals were perfused at normothermic and hyperthermic temperatures.

    • Main Results:

    • Improved local control and cure rates were observed with smaller tumor inocula and shorter treatment intervals.
    • No significant benefit of DDP treatment was demonstrated compared to sham-operated controls.
    • DDP was well tolerated at normothermic temperatures.
    • Hyperthermic DDP perfusion led to necrosis of both normal and neoplastic tissues, causing early mortality.

    Conclusions:

    • Regional hyperthermia combined with DDP via isolation-perfusion did not provide a therapeutic advantage for VX-2 rabbit tumors.
    • Hyperthermia potentiated DDP toxicity, leading to widespread tissue necrosis and increased mortality.
    • Clinical application of DDP in isolation-perfusion requires careful dose consideration due to observed toxicity.