Abstract
Many strains of mice from various breeding institutes have natural cytotoxic macrophages. These macrophages can also be present in nude mice, suggesting that this cytotoxicity can be acquired without invovlvement of T cells. The natural cytotoxicity was non-specific for tumour cells, was not sensitive to trypsin treatment, was lost after 5 days incubation, but could be enhanced by foetal bovine serum. The presence of cytotoxic macrophages in the peritoneal cavity was not genetically or age controlled. Natural cytotoxic macrophages did not occur in germ-free mice. The possible causes of natural cytotoxicity are discussed.
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Pels, E., Den Otter, W. Natural cytotoxic macrophages in the peritoneal cavity of mice. Br J Cancer 40, 856–861 (1979). https://doi.org/10.1038/bjc.1979.276
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DOI: https://doi.org/10.1038/bjc.1979.276
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