Abstract
Washed lymphocytes from immunized rats showed no reaction against mouse plasmacytoma 5563 in vivo or in vitro.
Cell-free lymph from immunized rats was shown to be cytotoxic to the tumour cells in vitro. This effect we have shown to be solely in the 19s fraction after Sephadex G-200 separation.
This 19s fraction conferred partial protection to tumour bearing mice when given shortly after transplantation, but had negligible effect against late well established tumour.
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Fakhri, O., Hobbs, J. Studies of the Rat Immune Response to Plasmacytoma 5563 in C3H Mice. Br J Cancer 24, 853–860 (1970). https://doi.org/10.1038/bjc.1970.101
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DOI: https://doi.org/10.1038/bjc.1970.101