Abstract
We have so far developed a new type of cationic lipid that consists of an amine-terminated poly(amidoamine) dendron and two long alkyl chains. In this study, we designed a dendron-bearing lipid (DL) modified with sugar moieties as the ligand at the terminal groups of the dendron to improve the transfection activities. We combined lactobionic acid at the end of every dendritic branch of the DL to produce galactose moieties-attached DL (Gal-DL). The lipoplexes containing Gal-DL exhibited enhancement of transfection of HepG2 cells. Moreover, Gal-DL significantly promoted the transfection activity of the lipoplexes including poly(ethylene glycol)-attached dendron-bearing lipid (PEG-DL).
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