title: Anticancer activity of Amauroderma rude.
abstract: More and more medicinal mushrooms have been widely used as a miraculous herb for health promotion, especially by cancer patients. Here we report screening thirteen mushrooms for anti-cancer cell activities in eleven different cell lines. Of the herbal products tested, we found that the extract of Amauroderma rude exerted the highest activity in killing most of these cancer cell lines. Amauroderma rude is a fungus belonging to the Ganodermataceae family. The Amauroderma genus contains approximately 30 species widespread throughout the tropical areas. Since the biological function of Amauroderma rude is unknown, we examined its anti-cancer effect on breast carcinoma cell lines. We compared the anti-cancer activity of Amauroderma rude and Ganoderma lucidum, the most well-known medicinal mushrooms with anti-cancer activity and found that Amauroderma rude had significantly higher activity in killing cancer cells than Ganoderma lucidum. We then examined the effect of Amauroderma rude on breast cancer cells and found that at low concentrations, Amauroderma rude could inhibit cancer cell survival and induce apoptosis. Treated cancer cells also formed fewer and smaller colonies than the untreated cells. When nude mice bearing tumors were injected with Amauroderma rude extract, the tumors grew at a slower rate than the control. Examination of these tumors revealed extensive cell death, decreased proliferation rate as stained by Ki67, and increased apoptosis as stained by TUNEL. Suppression of c-myc expression appeared to be associated with these effects. Taken together, Amauroderma rude represented a powerful medicinal mushroom with anti-cancer activities.
authors.affiliation: Guangdong Institute of Microbiology, Guangzhou, China.
authors.forename: Chunwei
authors.initials: C
authors.lastname: Jiao
authors.forename: Yi-Zhen
authors.initials: YZ
authors.lastname: Xie
authors.forename: Xiangling
authors.initials: X
authors.lastname: Yang
authors.forename: Haoran
authors.initials: H
authors.lastname: Li
authors.forename: Xiang-Min
authors.initials: XM
authors.lastname: Li
authors.forename: Hong-Hui
authors.initials: HH
authors.lastname: Pan
authors.forename: Mian-Hua
authors.initials: MH
authors.lastname: Cai
authors.forename: Hua-Mei
authors.initials: HM
authors.lastname: Zhong
authors.forename: Burton B
authors.initials: BB
authors.lastname: Yang
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects; D001943:Breast Neoplasms / Q000188:drug therapy*; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D005260:Female; D048690:Fruiting Bodies, Fungal / Q000737:chemistry; D062610:Fungal Polysaccharides / Q000494:pharmacology*; D008516:Medicine, Chinese Traditional; D051379:Mice; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D047368:Tumor Burden / Q000187:drug effects; D023041:Xenograft Model Antitumor Assays
chemical_list: D000970:Antineoplastic Agents; D062610:Fungal Polysaccharides