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Ziram induces apoptosis and necrosis in human immune cells.
MedLine Citation:
PMID:  20842346     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Ziram as a dithiocarbamate fungicide is widely used throughout the world in agriculture and as an accelerating agent is used in latex production. In order to investigate ziram-induced apoptosis/necrosis and its underlying mechanism in human immune cells, a human monocyte-like cell line (U937) was treated with ziram at 0.0312-2 μM for 2-24 h at 37°C in a 5% CO(2) incubator. Apoptosis/necrosis induced by ziram was determined by analysis of FITC-Annexin-V/PI staining and the intracellular level of active caspase-3 by flow cytometry and DNA fragmentation analysis. We found that ziram induced apoptosis/necrosis in U937 in a time- and dose-dependent manner, as shown by FITC-Annexin-V/PI staining. DNA fragmentation was detected when cells were treated with 0.5, 1, or 2 μM ziram for 24 h. Ziram also induced an increase in intracellular active caspase-3 in U937 cells in a dose-dependent manner, and a caspase-3 inhibitor, Z-DEVD-FMK, significantly inhibited the ziram-induced apoptosis. Moreover, it was found that ziram induced mitochondrial cytochrome c release in U937 cells. These findings indicate that ziram can induce apoptosis/necrosis in U937 cells, and this effect is partially mediated by activation of intracellular caspase-3 and mitochondrial cytochrome c release.
Authors:
Qing Li; Maiko Kobayashi; Tomoyuki Kawada
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Publication Detail:
Type:  Journal Article     Date:  2010-09-15
Journal Detail:
Title:  Archives of toxicology     Volume:  85     ISSN:  1432-0738     ISO Abbreviation:  Arch. Toxicol.     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-03-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0417615     Medline TA:  Arch Toxicol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  355-61     Citation Subset:  IM    
Affiliation:
Department of Hygiene and Public Health, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan, qing-li@nms.ac.jp.
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