title: [Isolation, identification and anticancer activity of an endophytic fungi from Juglans mandshurica].
abstract: The endophytic fungus named FSN006 was isolated from the inner bark of Juglans mandshurica. It grew quickly and formed circular colony on PDA plate. The upper side of the colony was white, while the lower side of the colony and the conditioned medium were light yellow as a result of significant yellow pigment substances were produced and secreted by the fungi. Green elliptic conidia appeared when cultured on CMX plate. Based on the morphology identification and ITS sequence, it was clear that this fungus belonged to the Deuteromycotina, HyPhomycetes, Moniliales, Trichoderma longibrachiatum. The conditioned medium of FSN006 showed a high anti-tumor ability against liver cancer cell-HepG2, and reached its IC50 concentration after being diluted 20 times, while the IC50 concentration of curcumine was(11.49 +/- 0.12) mg x L(-1). In addition, there was preeminent selective inhibiting effect against the normal liver cell strain HL-7702 and its caner counter strain HepG2. The inhibiting effect against strain HL-7702 was only one quarter of that against HepG2 at the concentration of IC50. Therefore, the fermentation of FSN006 may provide a possible way to produce anticancer drug with higher efficiency and lower toxicity.
authors.affiliation: School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China. lmeiya@126.com
authors.forename: Meiya
authors.initials: M
authors.lastname: Li
authors.forename: Yunwei
authors.initials: Y
authors.lastname: Wu
authors.forename: Fusheng
authors.initials: F
authors.lastname: Jiang
authors.forename: Xiangli
authors.initials: X
authors.lastname: Yu
authors.forename: Kexuan
authors.initials: K
authors.lastname: Tang
authors.forename: Zhiqi
authors.initials: Z
authors.lastname: Miao
mesh_terms: D000970:Antineoplastic Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism / Q000494:pharmacology; D001685:Biological Factors / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism / Q000494:pharmacology; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D006801:Humans; D031324:Juglans / Q000382:microbiology*; D024301:Plant Bark / Q000382:microbiology; D014242:Trichoderma / Q000737:chemistry* / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism
chemical_list: D000970:Antineoplastic Agents; D001685:Biological Factors