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 |