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  • Title: Enhancement by Corynebacterium parvum of the normal and tumor tissue response to hyperthermia.
    Author: Urano M, Overgaard M, Suit H, Dunn P, Sedlacek R.
    Journal: Cancer Res; 1978 Mar; 38(3):862-4. PubMed ID: 626985.
    Abstract:
    The effect of Corynebacterium parvum treatment on the response of tumor and normal tissue to hyperthermia (43.5 degrees) was studied. Animals were C3Hf/Sed mice from our defined flora mouse colony. The time at hyperthermia that achieved control of one-half of methylcholanthrene-induced fibrosarcomas and the foot reaction were examined after treatment. C. parvum, if given 3 to 32 days before hyperthermia, enhanced the reaction to local hyperthermia of normal tissue. No enhancement was observed if C. parvum was given after hyperthermia. This enhancement was more dramatic for tumor response resulting in a therapeutic gain factor of congruent to 2.3 (3.7/1.6). Comparative studies on combined Corynebacterium and radiation failed to demonstrate the enhancement to normal tissue.
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