Intracellular Plutonium: Removal by Liposome-Encapsulated Chelating Agent
- 20 April 1973
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 180 (4083) , 300-302
- https://doi.org/10.1126/science.180.4083.300
Abstract
Chelating agents, such as ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetic acid (DTPA) were successfully encapsulated within lipid spherules (that is, liposomes). Encapsutlated [14C]EDTA, given intravenously to mice, was retained longer in tissues that nonencapsulated [14C]EDTA. Encapsulated DTPA, given to mice 3 days after pluttonium injection, removed an additional fraction of plutonium in the liver, presumably intracellular, not available to nonencapslulated DTPA. It also further increased urinary excretion of plutonium. Introduction of chelating agents into cells by liposomal encapsulation is a promising new approach to the treatment of metal poisoningKeywords
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