title: Antitumor and immunoenhancing activities of polysaccharide from culture broth of Hericium spp.
abstract: The fruiting body and culture broth of many edible mushrooms contain water-soluble polysaccharides. Numerous researchers have reported that these polysaccharides have immunoenhancing effects. In this study, Hericium erinaceus and Hericium laciniatum were separately cultivated in a shaker at 25 degrees C for 25 days. Polysaccharides were extracted from the culture broth. The molecular weights were larger than 1 x 10(5) k Da and their polysaccharide components were mainly glucose in H. erinaceus and galactose in H. laciniatum. Furthermore, we investigated these two purified water-soluble polysaccharides for their anti-artificial pulmonary metastatic tumor and immunoenhancing effects in ICR mice. The results revealed that both polysaccharides had significant anti-artificial pulmonary metastatic tumor effects in mice (p < 0.05). Additionally, the polysaccharide from H. erinaceus was more effective than that from H. laciniatum. However, both of the polysaccharides enhanced the increase of T cells and macrophages. The numbers of CD4+ cells and macrophages were significantly higher in the test group than in the control group (p < 0.05). From our results, no differences were found between the two purified water-soluble polysaccharides in the antitumor effects and immunoenhancing activities (p > 0.05).
authors.affiliation: Department of Food Sanitation, Tajen Institute of Technology, 20, Wei-Shin Rd., Shin-Erh Villege, Yen-Pu Hsing, Ping Tung, Taiwan. jicy.wang@msa.hinet.net
authors.forename: J C
authors.initials: JC
authors.lastname: Wang
authors.forename: S H
authors.initials: SH
authors.lastname: Hu
authors.forename: C H
authors.initials: CH
authors.lastname: Su
authors.forename: T M
authors.initials: TM
authors.lastname: Lee
mesh_terms: D000276:Adjuvants, Immunologic / Q000494:pharmacology*; D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D008175:Lung Neoplasms / Q000517:prevention & control / Q000556:secondary; D008297:Male; D051379:Mice; D008813:Mice, Inbred ICR; D020072:Polyporales / Q000737:chemistry*; D011134:Polysaccharides / Q000494:pharmacology*
chemical_list: D000276:Adjuvants, Immunologic; D000970:Antineoplastic Agents; D011134:Polysaccharides