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Folic acid modified copper oxide nanoparticles for targeted delivery in in vitro and in vivo systems

机译:用于在体外和体内体系中靶向递送的叶酸改性氧化铜纳米颗粒

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摘要

Copper oxide nanoparticles are known to exhibit toxic effects on a variety of cell types. In the present study, copper oxide nanoparticles were modified with folic acid for targeted delivery. The physicochemical properties of copper oxide nanoparticles (CuO NPs) and folic acid conjugated copper oxide nanoparticles (CuO-FA NPs) were studied by Dynamic light scattering (DLS), Field emission scanning electron microscopy (FE-SEM) and Fourier transform infrared spectroscopy (FTIR). To determine targeting efficacy, we have used folate receptor positive and folate receptor knock down human breast cancer cells MCF7. Flow cytometric analysis, generation of ROS and expression of apoptotic proteins (cleaved PARP, decreased p-BAD) indicated that most cell death occurred through apoptosis in CuO-FA NPs treated MCF7 cells. In the in vivo study, we used Dalton's lymphoma (DL) cell induced tumor in mice. We successfully delivered CuO and CuO-FA NPs through peritoneal injection after induction of the tumor. Reactive oxygen species (ROS), glutathione (GSH) was measured in DL cells isolated from tumor bearing mice. All of these data indicated that CuO-FA NPs was more effective in killing the tumor cells and successful reduction of the tumor was observed in CuO-FA NPs treated mice after 15 days of treatment. These findings have important implications for understanding the potential anticancer properties induced by folic acid modified CuO NPs.
机译:已知氧化铜纳米颗粒对各种细胞类型表现出毒性作用。在本研究中,用叶酸修饰氧化铜纳米粒子以靶向递送。通过动态光散射(DLS),场发射扫描电子显微镜(FE-SEM)和傅里叶变换红外光谱研究研究氧化铜纳米粒子(CuO NPS)和叶酸共轭氧化铜氧化纳米粒子(CuO-FA NPS)的物理化学性质(Cuo-FA NP)( FTIR)。为了确定靶向疗效,我们使用叶酸受体阳性和叶酸受体击倒人乳腺癌细胞MCF7。流式细胞术分析,RO的产生和凋亡蛋白的表达(切割PARP,降低P-WATE)表明,大多数细胞死亡通过Cuo-Fa NPS处理的MCF7细胞中的细胞凋亡发生。在体内研究中,我们使用Dalton的淋巴瘤(DL)细胞诱导小鼠肿瘤。我们在诱导肿瘤后通过腹膜注射成功地交付了CuO和Cuo-Fa NPS。在从肿瘤轴承小鼠中分离的DL细胞中测量反应性氧物质(ROS),谷胱甘肽(GSH)。所有这些数据表明,Cuo-Fa NPS在杀死肿瘤细胞方面更有效,并且在治疗15天后在Cuo-Fa NPS处理的小鼠中观察到肿瘤的成功减少。这些发现对了解叶酸改性CuO NPS诱导的潜在抗癌特性具有重要意义。

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  • 来源
    《RSC Advances》 |2015年第83期|共10页
  • 作者单位

    Jadavpur Univ Dept Life Sci &

    Biotechnol Kolkata India;

    Jadavpur Univ Dept Life Sci &

    Biotechnol Kolkata India;

    Vidyasagar Univ Immunol &

    Microbiol Lab Dept Human Physiol Community Hlth Midnapore 721102 W Bengal India;

    Vidyasagar Univ Immunol &

    Microbiol Lab Dept Human Physiol Community Hlth Midnapore 721102 W Bengal India;

    Vidyasagar Univ Immunol &

    Microbiol Lab Dept Human Physiol Community Hlth Midnapore 721102 W Bengal India;

    Indian Inst Technol Dept Chem Kharagpur 721302 W Bengal India;

    Jadavpur Univ Dept Life Sci &

    Biotechnol Kolkata India;

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  • 正文语种 eng
  • 中图分类 化学;
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