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Preparation and cytotoxicity of cisplatin-containing liposomes BJMBR
Carvalho Júnior,A.D.; Vieira,F.P.; De Melo,V.J.; Lopes,M.T.P.; Silveira,J.N.; Ramaldes,G.A.; Garnier-Suillerot,A.; Pereira-Maia,E.C.; De Oliveira,M.C..
We encapsulated cisplatin into stealth pH-sensitive liposomes and studied their stability, cytotoxicity and accumulation in a human small-cell lung carcinoma cell line (GLC4) and its resistant subline (GLC4/CDDP). Since reduced cellular drug accumulation has been shown to be the main mechanism responsible for resistance in the GLC4/CDDP subline, we evaluated the ability of this new delivery system to improve cellular uptake. The liposomes were composed of dioleoylphosphatidylethanolamine (DOPE), cholesteryl hemisuccinate (CHEMS), and distearoylphosphatidylethanolamine-polyethyleneglycol 2000 (DSPE-PEG2000) and were characterized by determining the encapsulation percentage as a function of lipid concentration. Among the different formulations,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cisplatin; Liposomes; Encapsulation; Cytotoxicity.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000800017
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