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Comprehensive Evaluation of microRNA Expression Profiling Reveals the Neural Signaling Specific Cytotoxicity of Superparamagnetic Iron Oxide Nanoparticles (SPIONs) through N-Methyl-D-Aspartate Receptor

机译:microRNA表达谱的综合评估揭示了N-甲基-D-天冬氨酸受体对超顺磁性氧化铁纳米颗粒(SPIONs)的神经信号特异性细胞毒性。

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摘要

Though nanomaterials are considered as drug carriers or imaging reagents targeting the central nervous system their cytotoxicity effect on neuronal cells has not been well studied. In this study, we treated PC12 cells, a model neuronal cell line, with a nanomaterial that is widely accepted for medical use, superparamagnetic iron oxide nanoparticles (SPIONs). Our results suggest that, after treated with SPIONs, the expression pattern of the cellular miRNAs changed widely in PC12 cells. As potential miRNA targets, NMDAR, one of the candidate mRNAs that were selected using GO and KEGG pathway enrichment, was significantly down regulated by SPIONs treatment. We further illustrated that SPIONs may induce cell death through NMDAR suppression. This study revealed a NMDAR neurotoxic effect of SPIONs and provides a reliable approach for assessing the neurocytotoxic effects of nanomaterials based on the comprehensive annotation of miRNA profiling.
机译:尽管纳米材料被认为是靶向中枢神经系统的药物载体或成像试剂,但它们对神经元细胞的细胞毒性作用尚未得到很好的研究。在这项研究中,我们用一种广泛用于医疗用途的纳米材料超顺磁性氧化铁纳米颗粒(SPIONs)处理了模型神经元细胞系PC12细胞。我们的结果表明,用SPIONs处理后,细胞miRNA的表达模式在PC12细胞中发生了广泛的变化。作为潜在的miRNA靶标,NMDAR是使用GO和KEGG途径富集选择的候选mRNA之一,受到SPIONs处理后显着下调。我们进一步说明了SPIONs可能通过NMDAR抑制诱导细胞死亡。这项研究揭示了SPIONs的NMDAR神经毒性作用,并基于对miRNA分析的全面注释,为评估纳米材料的神经细胞毒性作用提供了可靠的方法。

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  • 年(卷),期 -1(10),3
  • 年度 -1
  • 页码 e0121671
  • 总页数 11
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