title: NF00659A1, A2, A3, B1 and B2, novel antitumor antibiotics produced by Aspergillus sp. NF 00659. I. Taxonomy, fermentation, isolation and biological activities.
abstract: Five novel cytotoxic antibiotics, NF00659A1 (1), A2 (2), A3 (3), B1 (4) and B2 (5) were discovered. They were isolated from a culture mycelium of Aspergillus sp. These compounds were proved to have 4,5-seco-tricyclic diterpene alpha-pyrone structure by spectroscopic analyses. They showed potent antitumor activities against human ovarian carcinoma A2780 and human colorectal adenocarcinoma SW480 cells, but did not show any antimicrobial activities at 1,000 micrograms/ml against Gram-positive and Gram-negative bacteria, yeasts and fungi.
authors.affiliation: Applied Microbiology Research Center, Nippon Kayaku Co., Ltd., Saitama, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Suzuki
authors.forename: A
authors.initials: A
authors.lastname: Kuwahara
authors.forename: H
authors.initials: H
authors.lastname: Yoshida
authors.forename: S
authors.initials: S
authors.lastname: Fujita
authors.forename: T
authors.initials: T
authors.lastname: Nishikiori
authors.forename: T
authors.initials: T
authors.lastname: Nakagawa
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy*; D000818:Animals; D000903:Antibiotics, Antineoplastic / Q000302:isolation & purification* / Q000627:therapeutic use* / Q000633:toxicity; D015179:Colorectal Neoplasms / Q000188:drug therapy*; D003465:Culex / Q000187:drug effects; D004224:Diterpenes / Q000302:isolation & purification* / Q000627:therapeutic use / Q000633:toxicity; D005260:Female; D005285:Fermentation; D006801:Humans; D007306:Insecticides / Q000302:isolation & purification* / Q000494:pharmacology / Q000633:toxicity; D051379:Mice; D008826:Microbial Sensitivity Tests; D009036:Moths / Q000187:drug effects; D010051:Ovarian Neoplasms / Q000188:drug therapy*; D011753:Pyrones / Q000302:isolation & purification* / Q000627:therapeutic use / Q000633:toxicity; D014407:Tumor Cells, Cultured / Q000187:drug effects
chemical_list: D000903:Antibiotics, Antineoplastic; D004224:Diterpenes; D007306:Insecticides; D011753:Pyrones