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首页> 外文期刊>Journal of Bionanoscience >The Combination Effect of Poly(lactic-co-glycolic acid)Coated Iron Oxide Nanoparticles as 5-Fluorouracil Carrier and X-Ray on the Level of DNA Damages in the DU 145 Human Prostate Carcinoma Cell Line
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The Combination Effect of Poly(lactic-co-glycolic acid)Coated Iron Oxide Nanoparticles as 5-Fluorouracil Carrier and X-Ray on the Level of DNA Damages in the DU 145 Human Prostate Carcinoma Cell Line

机译:聚乳酸-乙醇酸包覆的氧化铁纳米粒子作为5-氟尿嘧啶载体和X射线对DU 145人前列腺癌细胞系DNA损伤水平的组合作用

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The purpose of this study was to investigate the effect of magnetic nanoparticles as a carrier of 5-fluorouracil and X-ray on the level of DNA damages in monolayer model of DU145 prostate carcinoma cell lines. Therefore, DU145 cells were cultured as monolayer and treated with different concentrations of 5-FU/or nanoparticles as 5-FU carriers for 24 hours and 2 Gy X-ray(6 MV). After treatment, the induced DNA damages were examined using alkaline comet assay. Our results showed that DNA damages increased as along with the increase of the concentration of free 5-FU and PLGA coated iron oxide nanoparticles as a carrier of 5-fluorouracil in combination with X-ray. However the extend of induction of DNA damages from 5-FU in polymeric coated iron oxide nanoparticles in combination with 2 Gy of megavoltage X-ray was significantly more than free 5-Fu. Since drug loaded nanoparticles could deliver 5-Fu more efficient into the cells, magnetic nanoparticles are stable and effective drug delivery vehicles for 5-FU.
机译:这项研究的目的是调查磁性纳米颗粒作为5-氟尿嘧啶和X射线的载体对DU145前列腺癌细胞系单层模型中DNA损伤水平的影响。因此,将DU145细胞培养为单层,并用不同浓度的5-FU /或纳米颗粒作为5-FU载体处理24小时和2 Gy X射线(6 MV)。处理后,使用碱性彗星试验检查诱导的DNA损伤。我们的结果表明,DNA损伤随着作为5-氟尿嘧啶载体的游离5-FU和PLGA包覆的氧化铁纳米颗粒与X射线结合的浓度增加而增加。然而,在聚合物涂层的氧化铁纳米颗粒中结合2 Gy的兆伏电压X射线,由5-FU引起的DNA损伤的诱导范围明显大于游离的5-Fu。由于载有药物的纳米颗粒可以将5-Fu更有效地递送到细胞中,因此磁性纳米颗粒是用于5-FU的稳定且有效的药物递送载体。

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