title: Natural microbial polysaccharide sulphoethyl glucan as antigenotoxic and cancer preventing agent.
abstract: Naturally occurring polysaccharides isolated from the yeasts are the substances with versatile intriguing biomodulatory activities. One of the novel derivatives prepared from the (1 --> 3)-beta-D-glucan isolated from the cell walls of baker's yeast Saccharomyces cerevisiae is sulfoethyl glucan (SEG). Its DNA-protective, antimutagenic, anticlastogenic and cytotoxic/cytostatic enhancing effect was evaluated using five eukaryotic systems. SEG showed bioprotective effect in recombination- repair-deficient strain of alga Chlamydomonas reinhardtii against methyl methanesulfonate-induced genotoxicity, antimutagenic effect against ofloxacin-induced genetic changes in yeast Saccharomyces cerevisiae assay and anticlastogenic activity in plants Vicia sativa and Vicia faba assays against maleic hydrazide-induced clastogenicity. In the combined application with cytostatic drug vumon, SEG exerted enhancement of the drug's cytotoxic/cytostatic effect in the cell revitalization assay using mouse leukemia cells. The study sheds light on the possible mechanisms of actions and utilization of this microbial polysaccharide derivative in the cancer prevention and therapy.
authors.affiliation: Department of Genetics, Comenius University, 842 15 Bratislava, Slovak Republic. vlckova@fns.uniba.sk
authors.forename: V
authors.initials: V
authors.lastname: Vlcková
authors.forename: S
authors.initials: S
authors.lastname: Nadová
authors.forename: V
authors.initials: V
authors.lastname: Dúhová
authors.forename: K
authors.initials: K
authors.lastname: Závodná
authors.forename: Z
authors.initials: Z
authors.lastname: Moránová
authors.forename: P
authors.initials: P
authors.lastname: Rauko
authors.forename: G
authors.initials: G
authors.lastname: Kogan
authors.forename: E
authors.initials: E
authors.lastname: Miadoková
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000633:toxicity; D016588:Anticarcinogenic Agents / Q000494:pharmacology*; D016587:Antimutagenic Agents / Q000494:pharmacology*; D002455:Cell Division / Q000187:drug effects*; D002473:Cell Wall / Q000737:chemistry; D016825:Chlamydomonas reinhardtii / Q000187:drug effects; D004249:DNA Damage / Q000187:drug effects*; D008741:Methyl Methanesulfonate / Q000633:toxicity; D009153:Mutagens / Q000633:toxicity; D015242:Ofloxacin / Q000633:toxicity; D011509:Proteoglycans; D012441:Saccharomyces cerevisiae / Q000737:chemistry* / Q000187:drug effects; D013713:Teniposide / Q000494:pharmacology; D031307:Vicia faba / Q000737:chemistry; D033022:Vicia sativa / Q000737:chemistry; D047071:beta-Glucans / Q000302:isolation & purification / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D016588:Anticarcinogenic Agents; D016587:Antimutagenic Agents; D009153:Mutagens; D011509:Proteoglycans; D047071:beta-Glucans; C010770:polysaccharide-K; D013713:Teniposide; D015242:Ofloxacin; D008741:Methyl Methanesulfonate