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首页> 外文期刊>Biomaterials Science >The influence of tumor-induced immune dysfunction on the immune cell distribution of gold nanoparticles in vivo
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The influence of tumor-induced immune dysfunction on the immune cell distribution of gold nanoparticles in vivo

机译:肿瘤诱导的免疫功能障碍对体内金纳米粒子免疫细胞分布的影响

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摘要

Gold nanoparticles (AuNPs) have been extensively explored as a drug carrier and have been widely used to provide advanced biomedical research tools in diagnostic imaging and therapy for cancer. Although the mononuclear phagocyte system and immune system are known to play the main roles in the clearance of AuNPs during the circulation, the particle distribution within the immune cells under the condition of immune dysfunction caused by tumor growth has not been thoroughly studied. Here, the cellular distribution of Cy5 labeled AuNPs with diameters of 5, 30 and 50 nm is characterized within the immune populations of the blood, spleen and bone marrow from tumor free and tumor bearing mice using flow cytometry. Tumor-associated immune dysfunction was observed in all immune organs and cell lineages, and it changed with tumor growth. Furthermore, the particle cellular distribution significantly changed in the tumor bearing mice compared with the tumor free mice. Finally, the particle distribution in the immune cells was also different at different stages of the tumor. Overall, these results can help inform and influence future AuNP design criteria including the future applications for nanoparticle-mediated cancer therapy.
机译:金纳米颗粒(AUNP)已广泛探索为药物载体,已广泛用于为癌症诊断成像和治疗提供先进的生物医学研究工具。虽然已知单核吞噬细胞系统和免疫系统在循环过程中发挥肛交间隙中的主要作用,但在肿瘤生长引起的免疫功能障碍条件下,免疫细胞内的颗粒分布尚未彻底研究。这里,具有5,30和50nm直径的Cy5标记的AuNP的细胞分布在血液,脾脏和骨髓的免疫群体中,使用流式细胞仪的肿瘤和肿瘤轴承小鼠的免疫群。在所有免疫器官和细胞谱系中观察到肿瘤相关的免疫功能障碍,并且随着肿瘤生长而变化。此外,与肿瘤自由小鼠相比,肿瘤轴承小鼠的颗粒细胞分布显着变化。最后,免疫细胞中的颗粒分布在肿瘤的不同阶段也不同。总的来说,这些结果可以帮助通知和影响未来的AUNP设计标准,包括未来纳米粒子介导的癌症治疗的应用。

著录项

  • 来源
    《Biomaterials Science》 |2017年第8期|共6页
  • 作者单位

    Jilin Univ Hosp 1 Changchun 130021 Jilin Peoples R China;

    Jilin Univ Hosp 1 Changchun 130021 Jilin Peoples R China;

    Jilin Univ Hosp 1 Changchun 130021 Jilin Peoples R China;

    Jilin Univ Hosp 1 Changchun 130021 Jilin Peoples R China;

    Univ Sci &

    Technol China Sch Life Sci Hefei Anhui Peoples R China;

    Univ Sci &

    Technol China Sch Life Sci Hefei Anhui Peoples R China;

    Jilin Univ Hosp 1 Changchun 130021 Jilin Peoples R China;

    Jilin Univ Hosp 1 Changchun 130021 Jilin Peoples R China;

    Jilin Univ Hosp 1 Changchun 130021 Jilin 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;
  • 关键词

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