Abstract
Summary
Rat peritoneal fluid mast cells can phagocytize colloidal gold. This foreign participate rapidly becomes localized within the specific cytoplasmic granules of the cell. With the previously demonstrated uptake of zymosan and of Thorotrast particles by mast cells, the demonstrated phagocytosis of a third particulate substance by mast cells suggests that uptake of substances from the tissue environment may be a process with broad significance with respect to mast cell function.
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