首页|氧化石墨烯-纳米银对山羊胎儿成纤维细胞中lncRNA表达谱的影响

氧化石墨烯-纳米银对山羊胎儿成纤维细胞中lncRNA表达谱的影响

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研究了低剂量氧化石墨烯-纳米银(graphene oxide-silver nanoparticles,GO-AgNPs)长期暴露对动物胚胎细胞lncRNA表达影响的表观遗传毒性机制.试验以0(对照组)或0.5 µg·mL-1(处理组)GO-AgNPs浓度连续处理山羊胎儿成纤维细胞70 d,提取细胞RNA进行转录组测序,对差异lncRNA进行GO功能注释和KEGG信号通路富集进行分析,并用qRT-PCR方法对差异表达基因进行验证.与对照组相比,处理组共有167个显著差异的lncRNA,其中72个上调,95个下调.GO功能注释表明差异基因与单生物细胞过程(single-organism cellular process)、组织迁移(tissue migration)和细胞成分运动调节(regulation of cellu-lar component movement)等相关;KEGG信号通路富集分析表明,差异表达lncRNA主要富集于白细胞介素-2生物合成过程等.以上结果说明非致死量GO-AgNPs长期暴露可诱导山羊胎儿成纤维细胞lncRNA表达谱的变化.
Effect of Graphene Oxide-Silver Nanoparticles on lncRNA Expression Pat-tern in Caprine Fetal Fibroblast Cells
The aim of this study is to investigate the effect of 0.5 pig·mL-1 graphene oxide-silver nanoparticles(GO-AgNPs)for long time treatment on the differential expression of lncRNAs in embryonic cells.Caprine fetal fi-broblasts were treated with 0 μg·mL-1 or 0.5 pig·mL-1 GO-AgNPs for 70 days,and RNA were collected for high-throughput sequencing.Differentially expressed(DE)lncRNAs were analyzed by GO and KEGG pathways.The DE lncRNAs were confirmed by quantitative real-time PCR.The results demonstrate that a total of 167 lncRNAs are significantly different in the treated group compared to control,of which 72 are up-regulated and 95 are down-regulated.GO analysis shows that DE genes are associated with single-organism cellular processes and tissue migration related to regulation of cellular component movement,etc.KEGG pathway analysis shows that the DE lncRNAs are mainly related to the biosynthesis of interleukin-2,etc.In conclusion,long-term treatment of caprine fetal fibroblast cells with non-lethal dose of GO-AgNPs can induce changes in lncRNAs expression profile.

graphene oxide-silver nanoparticlescaprine fetal fibroblast cellsepigenetics toxicitylncRNAs

宋志贤、刘松子、鲍思璇、张启鹏、孔桂美、袁玉国

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扬州大学医学院,扬州 225009

江苏省动物重要疫病与人兽共患病防控协同创新中心,扬州 225009

氧化石墨烯-纳米银 胎儿成纤维细胞 表观遗传毒性 长链非编码RNA

2024

生态毒理学报
中国科学院生态环境研究中心

生态毒理学报

CSTPCD北大核心
影响因子:0.857
ISSN:1673-5897
年,卷(期):2024.19(6)