title: Super pH-sensitive multifunctional polymeric micelle.
abstract: To endow enhanced tumor specificity and endosome disruption property on the carrier, a multifunctional polymeric micelle was investigated. The micelle exposes the cell interacting ligand (biotin) on the surface under slightly acidic environmental conditions of various solid tumors and is internalized by biotin receptor-mediated endocytosis in a short time period. The micelle also showed pH-dependent dissociation, causing the enhanced release of doxorubicin from the carrier in early endosomal pH. The dissociated micellar components subsequently disrupt endosomal membrane.
authors.affiliation: Department of Pharmaceutics and Pharmaceutical Chemistry, The University of Utah, 421 Wakara Way, Salt Lake City, Utah 84108.
authors.forename: Eun Seong
authors.initials: ES
authors.lastname: Lee
authors.forename: Kun
authors.initials: K
authors.lastname: Na
authors.forename: You Han
authors.initials: YH
authors.lastname: Bae
mesh_terms: D000230:Adenocarcinoma / Q000737:chemistry* / Q000473:pathology*; D001710:Biotin / Q000737:chemistry*; D001943:Breast Neoplasms / Q000737:chemistry / Q000473:pathology; D045744:Cell Line, Tumor; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D016503:Drug Delivery Systems / Q000379:methods*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007773:Lactates / Q000737:chemistry*; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry*
chemical_list: D020099:Coated Materials, Biocompatible; D007773:Lactates; C088513:poly(lactic acid-ethylene glycol); D011092:Polyethylene Glycols; D001710:Biotin