title: Anti-tumor effect of Coriolus versicolor methanol extract against mouse B16 melanoma cells: in vitro and in vivo study.
abstract: Numerous studies have shown immunostimulatory and anti-tumor effects of water and standardized aqueous ethanol extracts derived from the medicinal mushroom, Coriolus versicolor, but the biological activity of methanol extracts has not been examined so far. In the present study we investigated the anti-tumor effect of C. versicolor methanol extract (which contains terpenoids and polyphenols) on B16 mouse melanoma cells both in vitro and in vivo. In vitro treatment of the cells with the methanol extract (25-1600 microg/ml) reduced melanoma cell viability in a dose-dependent manner. Furthermore, in the presence of the methanol extract (200 microg/ml, concentration IC(50)) the proliferation of B16 cells was arrested in the G(0)/G(1) phase of the cell cycle, followed by both apoptotic and secondary necrotic cell death. In vivo methanol extract treatment (i.p. 50 mg/kg, for 14 days) inhibited tumor growth in C57BL/6 mice inoculated with syngeneic B16 tumor cells. Moreover, peritoneal macrophages collected 21 days after tumor implantation from methanol extract-treated animals exerted stronger tumoristatic activity ex vivo than macrophages from control melanoma-bearing mice. Taken together, our results demonstrate that C. versicolor methanol extract exerts pronounced anti-melanoma activity, both directly through antiproliferative and cytotoxic effects on tumor cells and indirectly through promotion of macrophage anti-tumor activity.
authors.affiliation: Department of Immunology, Institute for Biological Research Sinisa Stanković, Belgrade University, Belgrade, Serbia.
authors.forename: Lj
authors.initials: Lj
authors.lastname: Harhaji
authors.forename: S
authors.initials: S
authors.lastname: Mijatović
authors.forename: D
authors.initials: D
authors.lastname: Maksimović-Ivanić
authors.forename: I
authors.initials: I
authors.lastname: Stojanović
authors.forename: M
authors.initials: M
authors.lastname: Momcilović
authors.forename: V
authors.initials: V
authors.lastname: Maksimović
authors.forename: S
authors.initials: S
authors.lastname: Tufegdzić
authors.forename: Z
authors.initials: Z
authors.lastname: Marjanović
authors.forename: M
authors.initials: M
authors.lastname: Mostarica-Stojković
authors.forename: Z
authors.initials: Z
authors.lastname: Vucinić
authors.forename: S
authors.initials: S
authors.lastname: Stosić-Grujicić
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D000818:Animals; D017209:Apoptosis / Q000187:drug effects; D002453:Cell Cycle / Q000187:drug effects; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D002851:Chromatography, High Pressure Liquid; D004305:Dose-Response Relationship, Drug; D005434:Flow Cytometry; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D008264:Macrophages / Q000473:pathology; D008546:Melanoma, Experimental / Q000188:drug therapy* / Q000473:pathology; D000432:Methanol; D051379:Mice; D008810:Mice, Inbred C57BL; D009336:Necrosis; D010636:Phenols / Q000494:pharmacology; D012997:Solvents; D013729:Terpenes / Q000737:chemistry; D013778:Tetrazolium Salts; D013844:Thiazoles; D014343:Trypan Blue
chemical_list: D010636:Phenols; D012997:Solvents; D013729:Terpenes; D013778:Tetrazolium Salts; D013844:Thiazoles; D007770:L-Lactate Dehydrogenase; C022616:thiazolyl blue; D014343:Trypan Blue; D000432:Methanol