Endocytosis of cationized ferritin in human resting peripheral blood by T-lymphocytes
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Summary
We have examined the binding and internalization of cationized ferritin in T-lymphocytes of human peripheral blood, as a model for resting cells. After 30 min of incubation only 8% of endocytotic vesicles contain cationized ferritin. T-cells internalie the equivalent of their entire surface area in approximately 54 h, a longer time than is required by non-resting cells such as PHA-stimulated human lymphocytes. These tracer experiments suggest that the endocytosis of cationized ferritin by T-lymphocytes follows a lysosome pathway similar to that described for other cell types.
Key words
T-lymphocytes Endocytosis Cationized ferritin Plasma membrane Membrane dynamicsPreview
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