title: Novel phthalide compounds from Sparassis crispa (Hanabiratake), Hanabiratakelide A-C, exhibiting anti-cancer related activity.
abstract: Sparassis crispa (SC), known as Hanabiratake in Japanese, is an edible mushroom with various medicinal properties. We isolated 3 novel phthalides, designated hanabiratakelide A (1), B (2), and C (3), from the SC fruit body. In this investigation, 3 known phthalides (4-6), ubiquinone-9, and 2 known unsaturated fatty acids were also isolated. Their structures were elucidated primarily through extensive NMR experiments. The isolated compounds 1-6 were tested for their anti-oxidant activity. The in vitro superoxide dismutase-like activity of the 3 hanabiratakelides was stronger than that of vitamin C. The compounds also exerted inhibitory effects on lipopolysaccharide-stimulated nitric oxide and prostaglandin E2 production by a murine macrophage cell line, RAW264. In addition, the growth of the colon cancer cell lines Caco-2 and colon-26 was significantly inhibited by treatment with the 3 hanabiratakelides. In vivo, the frequency of azoxymethane-induced aberrant crypt foci was reduced in SC-fed F344/N rats compared to rats fed a standard diet. In conclusion, 3 novel phthalides, hanabiratakelides, derived from SC were shown to possess anti-oxidant, anti-inflammatory, and anti-tumor activity.
authors.affiliation: Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 770-8514, Japan.
authors.forename: Kazuko
authors.initials: K
authors.lastname: Yoshikawa
authors.forename: Naoki
authors.initials: N
authors.lastname: Kokudo
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Hashimoto
authors.forename: Kyosuke
authors.initials: K
authors.lastname: Yamamoto
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Inose
authors.forename: Takashi
authors.initials: T
authors.lastname: Kimura
mesh_terms: D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000302:isolation & purification / Q000494:pharmacology*; D016588:Anticarcinogenic Agents / Q000302:isolation & purification / Q000494:pharmacology* / Q000627:therapeutic use; D000975:Antioxidants / Q000302:isolation & purification / Q000494:pharmacology*; D001397:Azoxymethane; D001572:Benzofurans / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology* / Q000627:therapeutic use; D018938:Caco-2 Cells; D049109:Cell Proliferation / Q000187:drug effects; D003110:Colonic Neoplasms / Q000139:chemically induced / Q000473:pathology / Q000517:prevention & control*; D015232:Dinoprostone / Q000096:biosynthesis; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D008264:Macrophages / Q000187:drug effects / Q000201:enzymology / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D015394:Molecular Structure; D009569:Nitric Oxide / Q000096:biosynthesis; D020072:Polyporales / Q000737:chemistry*; D051381:Rats; D011916:Rats, Inbred F344; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D016588:Anticarcinogenic Agents; D000975:Antioxidants; D001572:Benzofurans; C554103:hanabiratakelide A; C554104:hanabiratakelide B; C554105:hanabiratakelide C; D009569:Nitric Oxide; C082022:phthalide; D013482:Superoxide Dismutase; D015232:Dinoprostone; D001397:Azoxymethane