title: Flavone glucosides with immunomodulatory activity from the leaves of Pleioblastus amarus.
abstract: Three flavone glucosides, pleiosides A-C, were isolated from the leaves of Pleioblastus amarus, along with two known flavones: tricin and tricetin 3,5-dimethoxy-7-O-beta-d-glucopyranoside. Their structures were elucidated by extensive spectral studies. Pleiosides A-C were found to inhibit the proliferation of murine T and significantly stimulate the proliferation of murine B lymphocytes in vitro.
authors.affiliation: Shanghai Institute of Materia Medica, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China.
authors.forename: Hong-Bing
authors.initials: HB
authors.lastname: Wang
authors.forename: Hui
authors.initials: H
authors.lastname: Yao
authors.forename: Guan-Hu
authors.initials: GH
authors.lastname: Bao
authors.forename: Hua-Ping
authors.initials: HP
authors.lastname: Zhang
authors.forename: Guo-Wei
authors.initials: GW
authors.lastname: Qin
mesh_terms: D000276:Adjuvants, Immunologic / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D000818:Animals; D001402:B-Lymphocytes / Q000166:cytology / Q000187:drug effects; D002455:Cell Division / Q000187:drug effects; D003208:Concanavalin A / Q000494:pharmacology; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D008070:Lipopolysaccharides / Q000494:pharmacology; D051379:Mice; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D006109:Poaceae / Q000737:chemistry*; D013154:Spleen / Q000166:cytology; D013601:T-Lymphocytes / Q000166:cytology / Q000187:drug effects; D013936:Thymidine / Q000031:analogs & derivatives / Q000378:metabolism; D014316:Tritium
chemical_list: D000276:Adjuvants, Immunologic; D005419:Flavonoids; D005960:Glucosides; D008070:Lipopolysaccharides; D014316:Tritium; D003208:Concanavalin A; C017769:tricin; D013936:Thymidine