Abstract：
:Atrazine, a member of the 2-chloro-s-triazine family of herbicides, is the most widely used pesticide in the world and often detected in agriculture watersheds. Although it was generally considered as an endocrine disruptor, posing a potential threat to human health, the molecular mechanisms of atrazine effects remain unclear. Using two-dimensional gel electrophoresis, we identified a panel of differentially expressed phosphoproteins and total proteins in human breast epithelial MCF-10A cells after being exposed to environmentally relevant concentrations of atrazine. Atrazine treatments for 6 h resulted in differential expression of 4 phosphoproteins and 8 total-proteins as compared to the control cells (>1.5-fold, p<0.05). MALDI-TOF MS/MS analysis revealed that the differentially expressed proteins belong to various cellular compartments (nucleus, cytosol, membrane) and varied in function, including those regulating the stress response such as peroxiredoxin I, HSP70 and HSP27; structural proteins such as tropomyosin and profilin 1; and oncogenesis proteins such as ANP32A. Six of the 12 identified proteins were verified by quantitative PCR for their transcript levels. The most up-regulated phosphoprotein by atrazine treatment, ANP32A, was further analyzed for its expression, distribution and cellular localization using Western blot and immunocytochemical approaches. The results revealed that ANP32 expression after atrazine treatment increased dose and time dependently and was primarily located in the nucleus. This study may provide new evidence on the potential toxicity of atrazine in human cells.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Huang P,Yang J,Song Qdoi
10.3390/ijms151017806subject
Has Abstractpub_date
2014-10-01 00:00:00pages
17806-26issue
10issn
1422-0067pii
ijms151017806journal_volume
15pub_type
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journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
pub_type： 杂志文章,meta分析,评审
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
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journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
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journal_title：International journal of molecular sciences
pub_type： 杂志文章,评审
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journal_title：International journal of molecular sciences
pub_type： 杂志文章
doi：10.3390/ijms160817637
更新日期：2015-07-31 00:00:00
