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Coal dust exposure induces proliferation and migration of human bronchial epithelial cells
Li Amin,Zhang Yinci,Wang Ruikai,Xu Ruyue,Ma Yongfang,Song Li,Cao Weiya,Xiaolong Tang 대한독성 유전단백체 학회 2023 Molecular & cellular toxicology Vol.19 No.2
Background Coal dust exposure has caused a variety of lung diseases. In addition to genotoxicity and cytotoxicity, other biological changes caused by coal dust (CD) exposure need further study. Objective To observe the cellular transformation eff ects of CD exposure and explore its underlying molecular mechanism, human bronchial epithelial cells (BEAS-2B) were cultured with continuous CD exposure. Methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay, colony formation assay, wound healing assay, next-generation sequencing (NGS) and western blotting were performed to observe the cell proliferation, migration, genomic transcription and pathological signaling pathways. Results We demonstrated that BEAS-2B cells with long-term chronic CD exposure show accelerated proliferation rate and enhanced migration ability, and have altered gene expression profi les and aberrant activation of EGFR/Raf/ERK and PI3K/ AKT/mTOR pathways. Conclusions The results indicate that chronic CD exposure could induce abnormal proliferation and migration of BEAS-2B cells, lead to the transformation potential of human bronchial epithelial cells.
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