title: Antitumor-active heteroglycans from niohshimeji mushroom, Tricholoma giganteum.
abstract: Water-soluble polysaccharide FI and water-insoluble polysaccharides FII, FIII-1, and FIII-2 were obtained from fruiting bodies of Tricholoma giganteum. Polysaccharides were further fractionated by ion-exchange chromatography, gel filtration, and affinity chromatography. The 24 polysaccharide fractions obtained were examined for their antitumor effect on Sarcoma 180 implanted in mice. The following antitumor-active polysaccharides were identified: FIo-a, a mixture of alpha-D-glucan and xyloglucomannan with an average molecular weight of 1.6 x 10(6); FA-1, a beta-D-glucan containing 1% protein and with a molecular weight of 4.0 x 10(4); FII-1, a (1-->3)-beta-D-glucan containing 7.8% protein, with a molecular weight of 5.2 x 10(4); FIII-1-b, a protein-polysaccharide complex (ratio, 37.5:62.5, w/w), with a molecular weight of 6.8 x 10(4) and with xylose, galactose, mannose, and glucose in the polysaccharide moiety (proportions of 8.9:14.9:29.3:46.9 by weight), and FIII-2-a, b, and c, three (1-->6)-beta-D-glucosyl-branched (1-->3)-beta-D-glucans with a molecular weight from 2.6 x 10(5) to 4.1 x 10(5) and containing small amounts of xylose and galactose and 3.5-8.3% protein.
authors.affiliation: Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Mizuno
authors.forename: T
authors.initials: T
authors.lastname: Kinoshita
authors.forename: C
authors.initials: C
authors.lastname: Zhuang
authors.forename: H
authors.initials: H
authors.lastname: Ito
authors.forename: Y
authors.initials: Y
authors.lastname: Mayuzumi
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D001487:Basidiomycota / Q000737:chemistry*; D002853:Chromatography, Liquid; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D009368:Neoplasm Transplantation; D011134:Polysaccharides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D012513:Sarcoma, Experimental / Q000188:drug therapy
chemical_list: D000970:Antineoplastic Agents; D011134:Polysaccharides