title: Induction of immunomodulating cytokines by a new polysaccharide-peptide complex from culture mycelia of Lentinus edodes.
abstract: The immunomodulating effect of a new polysaccharide-peptide complex from culture mycelia of Lentinus edodes (LE) was studied for elucidation of the mechanism of augmentation of cell-mediated immunity. RNA samples were isolated from the untreated and treated murine splenocytes and human peripheral blood mononuclear cells. RT-PCR was used to analyze the cytokine gene expression and bioassay was used to analyze the cytokine production. By administration of LE, the expression levels of IL-2 and TNF-alpha genes were augmented in the treated murine spleen mononuclear cells and human peripheral blood mononuclear cells. The production of IL-2 were augmented in the treated murine spleen mononuclear cells, and the production of TNF-alpha were augmented in the treated murine peritoneal exudate macrophages. The production of IL-2 and TNF-alpha were augmented in the treated human peripheral blood mononuclear cells. These results suggest that LE may induce Th immune responses.
authors.affiliation: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing. lmq@bltd.com.bta.net.cn
authors.forename: M
authors.initials: M
authors.lastname: Liu
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: F
authors.initials: F
authors.lastname: Kong
authors.forename: J
authors.initials: J
authors.lastname: Lin
authors.forename: Y
authors.initials: Y
authors.lastname: Gao
mesh_terms: D000818:Animals; D005656:Fungal Proteins / Q000494:pharmacology*; D006801:Humans; D007376:Interleukin-2 / Q000096:biosynthesis*; D020074:Lentinula / Q000737:chemistry*; D017737:Macrophages, Peritoneal; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D012333:RNA, Messenger / Q000096:biosynthesis; D014409:Tumor Necrosis Factor-alpha / Q000096:biosynthesis*
chemical_list: D005656:Fungal Proteins; D007376:Interleukin-2; D012333:RNA, Messenger; D014409:Tumor Necrosis Factor-alpha