Oestrogen receptor-mediated liposomal drug delivery for treating melanoma
2018
AbstractFunction of steroid hormone oestrogen that transactivates oestrogen receptor (ER) is expressed in multiple organs. Except for malignancies of gynaecological organs, ER remains largely unutilised as a target to treat cancers of ER-expressing brain, prostate, skin etc. We have previously developed oestrogen targeting cationic lipid molecule (ES-C10), which showed targeted killing of ER + breast and skin cancer cells. In this study, we explored the targeting ability of ES-C10 as a ligand as well as its additive killing effect (if any), when incorporated in two different liposomes (DCME and DCDE), carrying two anticancer molecules MCIS3 and Docetaxel™, respectively. DCME and DCDE exhibited higher cytotoxicity in ER + cancer cells than in ER − cancer or in non-cancer cells. Both liposomes induced ER-mediated cytotoxicity and caspase 3-induced apoptosis in ER + melanoma cells. Further, decreased levels of pAkt, and increased levels of PTEN and p53 were also observed. Both the targeted liposomes were lea...
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