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首页> 外文期刊>Biomaterials Science >Polyethyleneimine coated Fe3O4 magnetic nanoparticles induce autophagy, NF-kappa B and TGF-beta signaling pathway activation in HeLa cervical carcinoma cells via reactive oxygen species generation
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Polyethyleneimine coated Fe3O4 magnetic nanoparticles induce autophagy, NF-kappa B and TGF-beta signaling pathway activation in HeLa cervical carcinoma cells via reactive oxygen species generation

机译:聚乙烯亚胺涂覆的Fe3O4磁性纳米颗粒通过反应性氧物种产生在HeLa宫颈癌细胞中诱导自噬,NF-Kappa B和TGF-Beta信号通路活化

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摘要

Fe3O4 magnetic nanoparticles (MNPs), as one of the most intensively researched NPs, have a range of applications in cancer treatments. In current research, we have focused on the influences of MNPs on cancer cells. We chose polyethyleneimine (PEI) coated MNPs (PEI-MNPs) as a model and they are colloidally stable in biological media. It can be proved that PEI-MNPs result in autophagy induction via mTOR-Akt-p70S6 K and ATG7 signaling pathways. For the first time, we have reported that PEI-MNPs activate both NF-kappa B and TGF-beta signaling, two key pro-inflammatory pathways, in cancer cells. More significantly, we have found that autophagy induction and NF-kappa B and TGF-beta activation can be efficiently suppressed through the inhibition of PEI-MNP dependent reactive oxygen species (ROS) over-production. ROS are deemed as a 'double edge sword' for cancer cells, owing to the cancer-suppressing and cancer-promoting actions. Our findings would be useful for designing MNPs induced ROS anti-cancer strategies or diminishing long-term toxic effects.
机译:Fe3O4磁性纳米颗粒(MNP),作为最强烈地研究NPS之一,具有一系列癌症治疗的应用。在目前的研究中,我们专注于MNP对癌细胞的影响。我们选择聚乙烯亚胺(PEI)涂覆的MNPS(PEI-MNP)作为模型,它们在生物介质中是胶体稳定的。可以证明PEI-MNP通过MTOR-AKT-P70S6 K和ATG7信号传导途径导致自噬感应。我们首次报道了PEI-MNPS在癌细胞中激活NF-KAPPA B和TGF-β信令,两个关键促炎途径,癌细胞。更重要的是,我们发现通过抑制PEI-MNP依赖性活性氧(ROS)过度生产,可以有效地抑制自噬感应和NF-Kappa B和TGF-β激活。由于癌症抑制和癌症促进行动,ROS被视为癌细胞的“双刃剑”。我们的研究结果对于设计MNP诱导的ROS抗癌策略或减少长期毒性效应。

著录项

  • 来源
    《Biomaterials Science》 |2020年第1期|共11页
  • 作者单位

    Tianjin Univ Sci &

    Technol State Key Lab Food Nutr &

    Safety Key Lab Ind Fermentat Microbiol Minist Educ Tianjin Key Lab Ind Microbiol Sch Biotechnol Tianjin 300457 Peoples R China;

    Tianjin Univ Sci &

    Technol State Key Lab Food Nutr &

    Safety Key Lab Ind Fermentat Microbiol Minist Educ Tianjin Key Lab Ind Microbiol Sch Biotechnol Tianjin 300457 Peoples R China;

    Tianjin Univ Sci &

    Technol State Key Lab Food Nutr &

    Safety Key Lab Ind Fermentat Microbiol Minist Educ Tianjin Key Lab Ind Microbiol Sch Biotechnol Tianjin 300457 Peoples R China;

    Tianjin Univ Sci &

    Technol State Key Lab Food Nutr &

    Safety Key Lab Ind Fermentat Microbiol Minist Educ Tianjin Key Lab Ind Microbiol Sch Biotechnol Tianjin 300457 Peoples R China;

    Tianjin Univ Sci &

    Technol State Key Lab Food Nutr &

    Safety Key Lab Ind Fermentat Microbiol Minist Educ Tianjin Key Lab Ind Microbiol Sch Biotechnol Tianjin 300457 Peoples R China;

    Tianjin Univ Sci &

    Technol State Key Lab Food Nutr &

    Safety Key Lab Ind Fermentat Microbiol Minist Educ Tianjin Key Lab Ind Microbiol Sch Biotechnol Tianjin 300457 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 分子生物学;
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