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The Expression of Inflammatory Cytokine and Heme Oxygenase-1 Genes in THP-1 Cells Exposed to Metal Oxide Nanoparticles

机译:炎性细胞因子和血红素加氧酶-1基因在金属氧化物纳米颗粒暴露的THP-1细胞中的表达

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The effect of manufactured nanoparticles on the expression of proinflammatory cytokine genes was examined. THP-1 cells differentiated into macrophage cells were exposed to TiO2 and NiO medium dispersions. After 2, 6, 12, or 24 hours exposure, the expression of IL-1 beta, IL-6, IL-8, TNF-alpha and HO-1 genes was determined by real-time PCR. TiO2 nanoparticles did not affect cytokine production. In addition, TiO2 nanoparticles did not dissolve in the dispersion. On the other hand, NiO nanoparticles enhanced the expression of all the genes tested. NiO dispersions were composed of 58.3 mu g/mL of NiO nanoparticles and 45.8 mu g/mL of Ni2+. The release of metal ions from the nanoparticles is associated with their cytotoxicity. Therefore, the effect of an NiCl2 solution containing 45.8 mu g/mL of Ni2+ on the expression of cytokine genes was also examined. The effects of NiCl2 were similar to those of the NiO nanoparticles. Furthermore, the effect of ZnO, SiO2-coated ZnO, Sb2O3, and Cr2O3 nanoparticles on the expression of IL-1 beta, IL-8 and TNF-alpha genes was examined. Soluble nanoparticles, such as ZnO, SiO2-coated ZnO, and Cr2O3 enhanced the gene expression of cytokines. Sb2O3 nanoparticles showed poor solubility and did not affect the expression of cytokine genes. In conclusion, these results suggest that nanoparticle solubility plays an important role in regulating the expression of proinflammatory cytokines.
机译:检查了制造的纳米颗粒对促炎细胞因子基因表达的影响。将分化为巨噬细胞的THP-1细胞暴露于TiO2和NiO介质分散液中。暴露2、6、12或24小时后,通过实时PCR测定IL-1β,IL-6,IL-8,TNF-α和HO-1基因的表达。 TiO2纳米颗粒不影响细胞因子的产生。另外,TiO 2纳米颗粒不溶解在分散体中。另一方面,NiO纳米颗粒增强了所有测试基因的表达。 NiO分散液由58.3μg / mL的NiO纳米颗粒和45.8μg / mL的Ni2 +组成。金属离子从纳米颗粒的释放与其细胞毒性有关。因此,还检查了含有45.8μg/ mL Ni 2+的NiCl 2溶液对细胞因子基因表达的影响。 NiCl2的作用类似于NiO纳米颗粒。此外,检查了ZnO,SiO2包覆的ZnO,Sb2O3和Cr2O3纳米颗粒对IL-1 beta,IL-8和TNF-α基因表达的影响。可溶性纳米粒子,例如ZnO,SiO2包覆的ZnO和Cr2O3增强了细胞因子的基因表达。 Sb2O3纳米粒子显示不良的溶解度,并且不影响细胞因子基因的表达。总之,这些结果表明纳米颗粒溶解度在调节促炎细胞因子的表达中起重要作用。

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