Azaphilones from an acid mine extremophile strain of a Pleurostomophora sp Journal Article


Authors: Stierle, A. A.; Stierle, D. B.; Girtsman, T.; Mou, T. C.; Antczak, C.; Djaballah, H.
Article Title: Azaphilones from an acid mine extremophile strain of a Pleurostomophora sp
Abstract: An extremophilic fungus identified as a Pleurostomophora sp. was isolated from the Berkeley Pit, an acid mine waste lake. When grown in liquid culture, the fungus produced berkchaetoazaphilones A-C (1, 2, and 5), the red pigment berkchaetorubramine (6), and the known compound 4-(hydroxymethyl)quinoline. These compounds were evaluated as inhibitors of matrix metalloproteinase-3, caspase-1, and proinflammatory cytokine production in induced THP-1 cells. Berkchaetoazaphilone B (2) inhibited IL-1β, TNFα, and IL-6 production in the induced inflammasome assay and was cytotoxic toward human retinoblastoma cell line Y79 (IC50 = 1.1 μM), leukemia cell lines CCRF-CEM and SR, and the melanoma cell line LOX IMVI (IC50 = 10 μM). © 2015 The American Chemical Society and American Society of Pharmacognosy.
Keywords: unclassified drug; human cell; antineoplastic agent; interleukin 1beta; cytotoxicity; tumor necrosis factor alpha; interleukin 6; cytokine production; upregulation; fungus; fungus growth; proton nuclear magnetic resonance; leukemia cell line; stromelysin; carbon nuclear magnetic resonance; interleukin 1beta converting enzyme; fungal strain; antiproliferative activity; human; article; retinoblastoma cell line; melanoma cell line; 4 (hydroxymethyl)quinoline; berkchaetoazaphilone a; berkchaetoazaphilone b; berkchaetoazaphilone c; berkchaetorubramine; heteronuclear multiple bond correlation; pleurostomophora
Journal Title: Journal of Natural Products
Volume: 78
Issue: 12
ISSN: 0163-3864
Publisher: American Chemical Society  
Date Published: 2015-12-24
Start Page: 2917
End Page: 2923
Language: English
DOI: 10.1021/acs.jnatprod.5b00519
PROVIDER: scopus
PUBMED: 26641525
PMCID: PMC5156323
DOI/URL:
Notes: Article -- Export Date: 3 February 2016 -- Source: Scopus
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  1. Hakim Djaballah
    101 Djaballah
  2. Christophe Antczak
    40 Antczak