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. 1967 Jan;93(1):445–450. doi: 10.1128/jb.93.1.445-450.1967

Autoradiographic Evidence for the Impermeability of Mouse Peritoneal Macrophages to Tritiated Streptomycin

Peter F Bonventre a,1, Robert Hayes a,2, John Imhoff a
PMCID: PMC315016  PMID: 6020415

Abstract

Cultured mouse peritoneal macrophages were found to be relatively impermeable to streptomycin. Based on radioactivity measurements and radioautographic evidence, macrophages were impermeable to tritiated dihydrostreptomycin for periods up to 20 hr of incubation. Little or no intracellular streptomycin could be detected even when incubation was carried out in the presence of therapeutic blood levels of carrier dihydrostreptomycin. When the cultured mouse macrophages were allowed to phagocytize staphylococci, yeast cells, or polystyrene latex particles in the presence of tritiated streptomycin, the impermeability of the cells to the antibiotic was not affected. These observations suggested that the process of phagocytosis does not facilitate the intracellular accumulation of streptomycin, as seems to be the case for the fixed phagocytic cells of the liver.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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