title: Studies on tamoxifen encapsulated in lipid vesicles: effect on the growth of human breast cancer MCF-7 cells.
abstract: Tamoxifen is a nonsteroidal estrogen-receptor modulator widely used in the treatment of breast cancer. Apoptosis has been reported to be a major mechanism for its antitumor effect. In the current studies, an endeavor was made to investigate the efficacy of vesicularly encapsulated tamoxifen on human breast cancer MCF-7 cells. Phospholipid-based vesicular systems viz. conventional liposomes and elastic-membrane liposomes were employed to encapsulate the drug. The MTT colorimetric assay was used to determine the efficacy of the tested formulations. The results demonstrated composition-dependent strong inhibition in the viability of MCF-7 cells with encapsulated tamoxifen vis-à-vis free drug. The encouraging findings from the current work construe immense potential of the lipid-based vesicular systems in the treatment of breast cancer.
authors.affiliation: Drug Delivery Research Group, University Institute of Pharmaceutical Sciences-UGC Centre of Advanced Study, Panjab University, Chandigarh, India.
authors.forename: Amit
authors.initials: A
authors.lastname: Bhatia
authors.forename: Shashi
authors.initials: S
authors.lastname: Bhushan
authors.forename: Bhupinder
authors.initials: B
authors.lastname: Singh
authors.forename: Om Prakash
authors.initials: OP
authors.lastname: Katare
mesh_terms: D018931:Antineoplastic Agents, Hormonal / Q000737:chemistry / Q000494:pharmacology / Q000627:therapeutic use; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000473:pathology; D045744:Cell Line, Tumor / Q000187:drug effects*; D004337:Drug Carriers / Q000737:chemistry* / Q000378:metabolism; D016503:Drug Delivery Systems; D005260:Female; D006801:Humans; D008081:Liposomes / Q000737:chemistry* / Q000378:metabolism; D010743:Phospholipids / Q000737:chemistry / Q000378:metabolism; D013629:Tamoxifen / Q000737:chemistry / Q000494:pharmacology / Q000627:therapeutic use
chemical_list: D018931:Antineoplastic Agents, Hormonal; D004337:Drug Carriers; D008081:Liposomes; D010743:Phospholipids; D013629:Tamoxifen