title: Amino acids and peptides. XXVI. Laminin-related peptide poly(ethylene glycol) hybrids and their inhibitory effect on experimental metastasis.
abstract: Laminin-related peptide poly(ethylene glycol) hybrid, Tyr-Ile-Gly-Ser-Arg-aminopoly(ethylene glycol) was prepared by the solution method and carboxylated poly(ethylene glycol)-Tyr-Ile-Gly-Ser-Arg was prepared by the solid phase method. Their inhibitory effects on experimental tumor metastasis were examined in mice. The inhibitory effect of Tyr-Ile-Gly-Ser-Arg was significantly potentiated by hybrid formation with poly(ethylene glycol) either at amino- or carboxyl terminals of the peptide. Of the hybrids, Tyr-Ile-Gly-Ser-Arg-amino(polyethylene glycol) #6000 hybrid exhibited about 10 times more potent anti-metastatic effect than the peptide itself. The inhibitory effect of a mixture of the carboxylated poly(ethylene glycol) hybrid and Arg-Gly-Asp-aminopoly(ethylene glycol) hybrid also exhibited an inhibitory effect.
authors.affiliation: Faculty of Pharmaceutical Sciences, Kobe Gakuin University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kawasaki
authors.forename: M
authors.initials: M
authors.lastname: Namikawa
authors.forename: T
authors.initials: T
authors.lastname: Mizuta
authors.forename: S
authors.initials: S
authors.lastname: Inoue
authors.forename: M
authors.initials: M
authors.lastname: Maeda
authors.forename: M
authors.initials: M
authors.lastname: Kakiuchi
authors.forename: Y
authors.initials: Y
authors.lastname: Izuno
authors.forename: S
authors.initials: S
authors.lastname: Yamamoto
authors.forename: Y
authors.initials: Y
authors.lastname: Tsutsumi
authors.forename: S
authors.initials: S
authors.lastname: Nakagawa
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D007797:Laminin / Q000031:analogs & derivatives* / Q000494:pharmacology*; D051379:Mice; D008969:Molecular Sequence Data; D009362:Neoplasm Metastasis / Q000517:prevention & control*; D009374:Neoplasms, Experimental / Q000188:drug therapy* / Q000473:pathology; D009842:Oligopeptides / Q000494:pharmacology*; D011092:Polyethylene Glycols / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D007797:Laminin; D009842:Oligopeptides; C081571:tyrosyl-isoleucyl-glycyl-seryl-arginine; D011092:Polyethylene Glycols