Related Experiment Videos
Further progress with oncolysis due to apathogenic clostridia.
Zentralblatt Fur Bakteriologie, Parasitenkunde, Infektionskrankheiten Und Hygiene. Erste Abteilung Originale. Reihe A: Medizinische Mikrobiologie Und Parasitologie
|March 1, 1979
Summary
Clostridium oncoticum (Cl. onc.) alone cannot cure tumors. Combining Cl. onc. with X-irradiation and hyperthermia (HFH) significantly increased survival and achieved cures in mice with Harding-Passey Melanoma.
Area of Science:
- Oncology
- Experimental Therapeutics
- Cancer Research
Background:
- Clostridium oncoticum (Cl. onc.) is apathogenic and ineffective as a monotherapy for tumor-bearing hosts.
- Previous studies showed limited success with combined treatments.
Purpose of the Study:
- To evaluate the efficacy of a threefold-combined treatment for Harding-Passey Melanoma in mice.
- To determine if repeated treatment cycles could improve cure rates.
Main Methods:
- Mice bearing Harding-Passey Melanoma were treated with local X-irradiation and local hyperthermia (HFH).
- Intravenous (i.v.) spore application of Cl. onc. was administered concurrently.
- Treatment was repeated in animals experiencing relapses.
Main Results:
- Combined treatment decreased mortality and achieved a cure rate of approximately 20% in initial experiments.
- Significant increases in survival time were observed, but relapses occurred.
- Animals tolerated repeated treatment series well, with some achieving relapse-free status after second or third cycles.
Conclusions:
- Repeating the threefold-combined treatment (local HFH, local X-irradiation, i.v. Cl. onc. spores) can achieve a high cure rate for mouse Harding-Passey Melanoma.
- This multimodal approach offers a promising strategy for treating this specific melanoma model.