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[Effect of attenuated Listeria monocytogenes cultures on the development of a sarcoma graft, mouse mammary epitheliomas and a dog carcinoma].

The injection of attenuated Listeria monocytogenes culture together with BP8 sarcoma cells into C3H mice prevented the taking of the graft. Moreover, the intratumoral injection of attenuated Listeria doubled the survival time of the animals and, in one case a regression of the tumour was observed. After intratumoral injection, in three out of five mice, the mammary carcinoma disappeared, and the course of a gingival carcinoma in a dog was slowed down.