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- W1985232912 abstract "The inefficiency of non-viral gene delivery systems, relative to viral systems, is likely due, in part, to the failure of endosomes to release DNA before reaching degradative lysosomes. A solution is to incorporate compounds in a delivery vector that will selectively increase the release of endosomally encapsulated DNA. To meet the above criteria, we designed, synthesized, and characterized the physicochemical and biological properties of such a compound, dodecyl-2-(1′-imidazolyl) propionate (DIP) to enhance cationic liposome mediated gene delivery. Several surface active techniques were used to characterize DIP lysing membranes. The critical micelle concentration of DIP was between 0.10–0.18 mM and the effective release and solubilization ratios were 1.0 and 4.0, respectively. DIP facilitated membrane disruption in both a pH and concentration dependent manner. In the presence of esterase at pH 7.0, the hydrolysis rate increased 32-fold indicating DIP can be degraded in the biological milieu. Toxicity of DIP by MTT assay in the SKnSH cell line demonstrated an ID50 of 1.2 mM, which is 30-fold higher than the concentration of DIP used to enhance gene transfection. When incorporated into cationic-liposomes, DIP enhanced transgene expression in vitro by 5-fold. The results of the study indicate that DIP may be a useful adjuvant to increase non-viral gene delivery to cells." @default.
- W1985232912 created "2016-06-24" @default.
- W1985232912 creator A5062269450 @default.
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- W1985232912 date "1998-02-01" @default.
- W1985232912 modified "2023-09-27" @default.
- W1985232912 title "Characterization of a pH-sensitive surfactant, dodecyl-2-(1′-imidazolyl) propionate (DIP), and preliminary studies in liposome mediated gene transfer" @default.
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- W1985232912 doi "https://doi.org/10.1016/s0005-2736(97)00172-7" @default.
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