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Human serum albumin (HSA) coated liposomal indocyanine green for in vivo tumor imaging

机译:人血清白蛋白(HSA)涂层脂质体吲哚菁绿,用于体内肿瘤成像

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摘要

In this study, a near-infrared (NIR) fluorescent nanoprobe based on indocyanine green (ICG) was synthesized. In comparison with ICG solution, the resulting nanoprobe, namely HSA-lipid-ICG NPs, exhibited remarkable improvement in stability as well as higher NIR fluorescence intensity. The in vitro experimental results demonstrated that HSA-lipid-ICG NPs were nontoxic at physiologically relevant concentrations and could be efficiently uptaken by MCF-7 cells through endocytosis after 0.5 h incubation. The biodistribution of HSA-lipid-ICG NPs was evaluated in a mouse xenograft model. An optimized tumor contrast was observed after 8 h intravenous administration, while ICG solution had negligible effect. The tumor could be clearly detected and the signal lasted at least up to 24 h after injection. This nanoprobe may potentially serve as an ideal contrast agent for in vivo NIR fluorescence imaging.
机译:在该研究中,合成了基于吲哚菁绿(ICG)的近红外(NIR)荧光纳米孔。 与ICG溶液相比,所得的纳米孔,即HSA-Lipid-ICG NPS表现出显着改善的稳定性以及较高的NIR荧光强度。 体外实验结果表明,HSA-Lipid-ICG NPS在生理相关浓度下存在无毒,并且可以通过MCF-7细胞通过内吞作用有效地升高于0.5小时后。 在小鼠异种移植模型中评价HSA-LIPID-ICG NP的生物分布。 在8小时内给药后观察到优化的肿瘤对比,而ICG溶液的效果可忽略不计。 可以清楚地检测肿瘤,注射后,信号持续至少高达24小时。 该纳米孔可能潜在用作体内荧光成像的理想造影剂。

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  • 来源
    《RSC Advances》 |2016年第18期|共6页
  • 作者单位

    Natl Clin Res Ctr Canc Key Lab Canc Prevent &

    Therapy Canc Inst &

    Hosp Huanhuxi Rd Hexi District 300060 Peoples R China;

    Tianjin Med Univ Res Ctr Basic Med Sci 22 Qixiangtai Rd Tianjin 300070 Peoples R China;

    Tianjin Med Univ Res Ctr Basic Med Sci 22 Qixiangtai Rd Tianjin 300070 Peoples R China;

    Tianjin Med Univ Res Ctr Basic Med Sci 22 Qixiangtai Rd Tianjin 300070 Peoples R China;

    Natl Clin Res Ctr Canc Key Lab Canc Prevent &

    Therapy Canc Inst &

    Hosp Huanhuxi Rd Hexi District 300060 Peoples R China;

    Tianjin Med Univ Res Ctr Basic Med Sci 22 Qixiangtai Rd Tianjin 300070 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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