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  • Title: Effect of intracerebrally injected Corynebacterium parvum on the development and growth of metastatic brain tumor in mice.
    Author: Kennedy JD, Sutton RC, Conley FK.
    Journal: Neurosurgery; 1989 Nov; 25(5):709-14. PubMed ID: 2586725.
    Abstract:
    Using KHT tumor in a mouse metastatic tumor model, we examined the effect of intracerebral and/or intraperitoneal injections of Corynebacterium parvum on the growth of metastatic brain tumor and the development of an inflammatory response in the central nervous system (CNS). C. parvum given intraperitoneally had no effect on the development and growth of CNS tumor, but did prolong the survival of mice by inhibiting the growth of systemic metastatic tumor, which was the cause of death in our tumor model. Mice that received intracerebral injections of C. parvum exhibited significantly decreased growth of metastatic brain tumor, as compared with mice that received intracerebral injections of saline, whether or not they had received C. parvum intraperitoneally. In addition, the brains of mice that received C. parvum intracerebrally exhibited an inflammatory response that was minimal or absent in the brains of control mice. Our results suggest that if immunotherapeutic agents can be delivered to the CNS and cause an inflammatory response, they can be effective against CNS metastases.
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