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The Growth and Spontaneous Dissemination of Melanoma B16 and Lewis Lung Tumour in Two Sub-strains of C57BL/6J Mice Treated with Corynebacterium Parvum And/or Levamisole

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Specialty Oncology
Date 1983 Jul 1
PMID 6546203
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Abstract

The effect of C. parvum and/or levamisole on tumour growth and spontaneous dissemination was tested in two tumour-host systems, melanoma B16 and LLT in C57BL/6J mice. C. parvum inhibited the growth of LLT and its dissemination to the lungs and the growth of B16 in females in one of the two sub-strains of mice used. Levamisole stimulated the growth of B16 in females in one sub-strain and in both sexes in the other sub-strain of mice. The growth of LLT was not influenced by levamisole but its dissemination to lymph nodes was facilitated. The growth-stimulating effect of levamisole was abrogated by C. parvum in the mice treated with both agents in combination. It is concluded that the effects of non-specific immunomodulators on tumour growth and spread can vary between sub-strains of the same inbred strain of mice bred at different laboratories.

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