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Analysis of microRNA expression and micronuclei frequency in workers exposed to vinyl chloride monomer in China
Journal article   Peer reviewed

Analysis of microRNA expression and micronuclei frequency in workers exposed to vinyl chloride monomer in China

Nan-Nan Feng, Yan Fang, Ya-Nan Zhang, Xiao-Wen Xu, Yong Li, Jin-Wei Wang, Yong-Liang Li, Paul Brandt-Rauf and Zhao-Lin Xia
Epigenomics, v 9(8), pp 1093-1104
Aug 2017
PMID: 28749179

Abstract

Adult Case-Control Studies Chemical Industry China Female Humans Male Micronuclei, Chromosome-Defective - chemically induced Micronuclei, Chromosome-Defective - statistics & numerical data MicroRNAs - genetics Occupational Exposure - adverse effects Vinyl Chloride - toxicity
To identify differently expressed miRNAs associated with vinyl chloride monomer (VCM) and micronuclei (MN) frequency. In discovery stage, we used microarray to detect miRNAs expression in peripheral blood lymphocytes between six low and six high VCM-exposed workers grouped by medium cumulative exposure dose. Then we validated four miRNAs using real-time quantitative reverse transcription PCR (qRT-PCR) and detected the micronuclei frequencies using cytokinesis-block micronucleus assay in 94 VCM-exposed workers and 53 healthy control subjects. We found eight miRNAs significantly downregulated and seven miRNAs upregulated (|Fold Change| >2; p < 0.05) in the high-exposure group through microarray. We validate that miR-222-3p, miR-146a-5p and miR-151a-5p were downregulated, while miR-22-3p was upregulated in VCM-exposed group (all p < 0.01). Furthermore, we found that expression of miR-22-3p was upregulated in the high micronuclei (MN) frequency subjects. In conclusion, our study suggested that these four miRNAs could be biomarkers of VCM exposure, and moreover miR-22-3p was correlated with MN frequency.

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Collaboration types
Domestic collaboration
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Web of Science research areas
Genetics & Heredity
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