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Gene expression profiling of human endothelial cells exposed to 50-Hz magnetic fields fails to produce regulated candidate genes

机译:暴露于50 Hz磁场下的人类内皮细胞的基因表达谱未能产生受调控的候选基因

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摘要

To address the question of a possible effect of magnetic fields (MF) at 50 Hz on living systems, gene expression analyses were performed on human primary vascular endothelial cells exposed to MF of various intensities compared to control cells. Exposure protocols included continuous exposure at a single intensity (10 and 700 μT), intermittent exposure at a single intensity (700 μT), and continuous exposure to a variable-intensity field (10–30 μT). The transcriptional response of the cells was investigated using oligonucleotide microarrays containing up to 30 000 unique features. Although in individual experiments genes were identified where the expression appeared to be affected by exposure to MF, none of these genes were regulated in the same manner in subsequent repetition experiments. This is the first report of a transcriptome-wide analysis of the effects of MF exposure on human cells. The lack of a reproducible effect of MF on the expression of any genes in our investigation adds further weight to the evidence that 50-Hz MF are not capable of interacting with biological systems and thus do not represent an endothelial stress factor.
机译:为了解决50 Hz的磁场(MF)对生命系统的可能影响的问题,对暴露于不同强度MF的人原代血管内皮细胞进行了基因表达分析,与对照细胞相比。曝光方案包括以单一强度(10和700μT)进行连续曝光,以单一强度(700μT)进行间歇性曝光以及在可变强度场中连续进行曝光(10–30μT)。使用含有多达30 000个独特特征的寡核苷酸微阵列研究了细胞的转录反应。尽管在单个实验中鉴定出表达似乎受MF影响的基因,但是在随后的重复实验中,这些基因均未以相同的方式受到调控。这是全基因组暴露对人体细胞影响的转录组分析的第一份报告。在我们的研究中,MF对任何基因的表达均缺乏可再现的作用,这进一步证明了50 Hz MF无法与生物系统相互作用,因此不代表内皮应激因子的证据。

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