| Literature DB >> 6836294 |
R T Proffitt, L E Williams, C A Presant, G W Tin, J A Uliana, R C Gamble, J D Baldeschwieler.
Abstract
The reticuloendothelial system of mice bearing EMT6 tumors was effectively blocked by intravenous injections of small unilamellar vesicles that incorporated a 6-aminomannose derivative of cholesterol in the lipid bilayer. Neutral liposomes loaded with indium-111-nitrilotriacetic acid were then injected. Fifty percent more radioactivity was deposited in tumors of the animals with blocked reticuloendothelial systems than in controls. Twenty-four hours after the injection of radioactive vesicles, well-defined tumor images were observed in whole-body gamma camera scintigraphs. Biodistribution studies showed that tumors from animals with blocked reticuloendothelial systems had more than twice the radioactivity per gram than any other tissue analyzed.Entities:
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Year: 1983 PMID: 6836294 DOI: 10.1126/science.6836294
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728