Modular plasmonic nanocarriers for efficient and targeted delivery of cancer-therapeutic siRNA.

Modular plasmonic nanocarriers for efficient and targeted delivery of cancer-therapeutic siRNA.
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模块化等离子体纳米载体,用于有效和靶向癌 - 治疗性siRNA。

DOI:
10.1021/nl500214e
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发表时间:
2014
期刊:
影响因子:
10.8
通讯作者:
Reich NO
Reich NO
中科院分区:
材料科学1区
文献类型:
--
作者:
Huang X;Pallaoro A;Braun GB;Morales DP;Ogunyankin MO;Zasadzinski J;Reich NO

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我们已经结合了一种多功能和强大的途径来递送核酸与基于肽的细胞特异性靶向。靶向polo样激酶基因的siRNA正在进行癌症治疗的临床试验,在这里,我们使用金纳米壳将这种RNA选择性地递送到显示神经纤毛蛋白-1表位的癌细胞。siRNA从纳米颗粒中的释放是由脉冲近红外激光照射引起的,这也提供了细胞内有效的内体逃逸。因此,我们的方法需要比标准核酸转导材料少10倍的材料,并且比其他基于颗粒的方法显著更有效。我们还描述了一种不依赖于修饰的RNA的颗粒核酸设计,从而使这些材料的制备更有效,更便宜。这些改进,当与控制何时何地释放siRNA相结合时,可以为各种细胞生物学研究提供基础。
We have combined a versatile and powerful route to deliver nucleic acids with peptide-based cell-specific targeting. siRNA targeting the polo-like kinase gene is in clinical trials for cancer treatment, and here we deliver this RNA selectively to cancer cells displaying the neuropilin-1 epitope using gold nanoshells. Release of the siRNA from the nanoparticles results from irradiation with a pulsed near-infrared laser, which also provides efficient endosomal escape within the cell. As a result, our approach requires 10-fold less material than standard nucleic acid transduction materials and is significantly more efficient than other particle-based methods. We also describe a particle–nucleic acid design that does not rely on modified RNA, thereby making the preparation of these materials more efficient and much less expensive. These improvements, when combined with control over when and where the siRNA is released, could provide the basis for diverse cell biological studies.
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