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|Title:||Intracellular drug delivery by sulfatide-mediated liposomes to gliomas|
Intracellular drug delivery
|Source:||Shao, K., Hou, Q., Duan, W., Go, M.L., Wong, K.P., Li, Q.-T. (2006-10-10). Intracellular drug delivery by sulfatide-mediated liposomes to gliomas. Journal of Controlled Release 115 (2) : 150-157. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jconrel.2006.07.024|
|Abstract:||We described here a liposomal carrier system in which the targeting ligand was sulfatide, a glycosphingolipid known to bind several extracellular matrix (ECM) glycoproteins whose expression was highly up-regulated in many tumors. In vitro experiments with human glioma cell lines demonstrated that robust intracellular uptake of the liposomes depended specifically on the presence of sulfatide as the key liposomal component. Significant amount of the liposomes remained largely intact in the cytoplasm for hours following their internalization. When anticancer drug doxorubicin (DOX) was encapsulated in such liposomes, most of the drug was preferably delivered into the cell nuclei to exert its cytotoxicity. Use of this drug delivery system to deliver DOX for treatment of tumor-bearing nude mice displayed much improved therapeutic effects over the free drug or the drug carried by polyethylene glycol (PEG)-grafted liposomes. Our results demonstrate a close link between effective intracellular uptake of the drug delivery system and its therapeutic outcome. Moreover, the sulfatide-containing liposomes (SCL) may represent an interesting ligand-targeted drug carrier for a wide spectrum of cancers in which sulfatide-binding ECM glycoproteins are expressed. © 2006 Elsevier B.V. All rights reserved.|
|Source Title:||Journal of Controlled Release|
|Appears in Collections:||Staff Publications|
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