title: Galactosylated liposomes as oligodeoxynucleotides carrier for hepatocyte-selective targeting.
abstract: 18mer oligodeoxynucleotides (ODNs) which can inhibit survivin gene expression were selected as a model gene drug. The glycolipid (5-cholestan-3beta-yl)-1-[2-(lactobionyl amido) ethylamido] formate (CHE-LA) which specific target to the cells expressing galactose receptors was synthesized through the reaction of lactone of lactobiono-1,5-lactone (LA) and the amino-group of 2-(cholesteryloxycarbonylamino) ethylamine (CHE). The galactosylated liposome incorporated with CHE-LA containing oligodeoxynucleotides was prepared with SPC, cholesterol, CHE-LA and oligodeoxynucleotides by the thin-film hydration method. 1,1'-Dioctadecyl-3,3,3',3'tetramethylindocarbocyanine perchlorate (Dil) was used as a marker for all the liposome preparations. Compared with conventional liposomes (CL), the galactosylated liposomes (GL) exhibited a drastically increased distribution to the liver in vivo and the galactosylated liposomes containing oligodeoxynucleotides (GLO) can also more efficiently induced an apoptosis of HepG2 cells in vitro than the conventional liposome containing oligodeoxynucleotides (CLO). In addition, the GLO represented an improving of the ODNs entrapment efficiency.
authors: Department of Pharmacy, Shenyang Pharmaceutical University, China.
authors: Fengbo
authors: F
authors: Yu
authors: Tongying
authors: T
authors: Jiang
authors: Jinghai
authors: J
authors: Zhang
authors: Lihua
authors: L
authors: Cheng
authors: Siling
authors: S
authors: Wang
mesh_terms: D000818:Animals; D017209:Apoptosis / Q000187:drug effects; D002453:Cell Cycle / Q000187:drug effects; D004337:Drug Carriers; D004339:Drug Compounding; D016503:Drug Delivery Systems; D005079:Excipients; D005690:Galactose / Q000737:chemistry; D022781:Hepatocytes / Q000187:drug effects*; D006801:Humans; D051034:Inhibitor of Apoptosis Proteins; D008081:Liposomes / Q000737:chemistry*; D008099:Liver / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D008869:Microtubule-Associated Proteins / Q000235:genetics; D009363:Neoplasm Proteins / Q000235:genetics; D009841:Oligonucleotides / Q000008:administration & dosage*; D013055:Spectrophotometry, Infrared; D013154:Spleen / Q000378:metabolism; D000077022:Survivin
chemical_list: C107489:BIRC5 protein, human; D004337:Drug Carriers; D005079:Excipients; D051034:Inhibitor of Apoptosis Proteins; D008081:Liposomes; D008869:Microtubule-Associated Proteins; D009363:Neoplasm Proteins; D009841:Oligonucleotides; D000077022:Survivin; D005690:Galactose