title: Specific interaction of mannosylated glycopolymers with macrophage cells mediated by mannose receptor.
abstract: Poly[N-p-vinylbenzyl-O-beta-mannopyranosyl-(1-4)-D-gluconamide] (PV-Man) is a polystyrene derivative that contains mannose moieties and interacts with the mannose-receptor-carrying macrophage cell line. To clarify the specific interaction between the PV-Man and the macrophage cell line J774A1, PV-Man polymer labeled with fluorescent fluorescein isothiocyanate (FITC) was used to amonitor the specific interaction, which was visualized by confocal laser microscopy. We found that PV-Man strongly binds to macrophage cells, probably due to a specific interaction mediated by the presence of mannose receptors on the cell membrane. The fluorescence intensity of PV-Man and macrophage cells was up to 7-fold that of any other glycopolymers bound to macrophage cells. Moreover, cellular fluorescence intensity increased significantly with increasing incubation time and polymer concentration. Many macrophage cells strongly express mannose and mannose receptor-related receptors, and receptor-mediated gene transfer via the mannose receptor using a PV-Man glycopolymer is a versatile means of targeted gene delivery into these cells.
authors.affiliation: College of Medicine, Pochon CHA University, Cell and Gene Therapy Research Institute 605, Yeoksam 1-dong, Kangnam-gu, Seoul 135-081, Korea.
authors.forename: Keun-Hong
authors.initials: KH
authors.lastname: Park
authors.forename: Won Jun
authors.initials: WJ
authors.lastname: Sung
authors.forename: Sungwon
authors.initials: S
authors.lastname: Kim
authors.forename: Doo Han
authors.initials: DH
authors.lastname: Kim
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Akaike
authors.forename: Hyung-Min
authors.initials: HM
authors.lastname: Chung
mesh_terms: D000818:Animals; D002460:Cell Line; D006003:Glycogen / Q000737:chemistry / Q000378:metabolism; D037181:Lectins, C-Type / Q000378:metabolism*; D008264:Macrophages / Q000166:cytology* / Q000378:metabolism*; D008358:Mannose / Q000737:chemistry / Q000378:metabolism*; D000090323:Mannose Receptor; D037241:Mannose-Binding Lectins / Q000378:metabolism*; D051379:Mice; D008807:Mice, Inbred BALB C; D011108:Polymers / Q000737:chemistry / Q000378:metabolism; D011137:Polystyrenes / Q000737:chemistry / Q000378:metabolism*; D011956:Receptors, Cell Surface / Q000378:metabolism*
chemical_list: D037181:Lectins, C-Type; D000090323:Mannose Receptor; D037241:Mannose-Binding Lectins; D011108:Polymers; D011137:Polystyrenes; D011956:Receptors, Cell Surface; D006003:Glycogen; D008358:Mannose