Photoacoustic- and Magnetic Resonance-Guided Photothermal Therapy and Tumor Vasculature Visualization Using Theranostic Magnetic Gold Nanoshells.

Photoacoustic- and Magnetic Resonance-Guided Photothermal Therapy and Tumor Vasculature Visualization Using Theranostic Magnetic Gold Nanoshells.
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DOI:
10.1166/jbn.2015.2089
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发表时间:
2015-08
影响因子:
2.9
通讯作者:
--
中科院分区:
工程技术3区
文献类型:
--
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基于纳米粒子的图像引导治疗是近年来兴起的一种癌症治疗技术。在这里,我们报告了同时光声(PA)和磁共振(MR)引导的光热消融(PTA)治疗使用多功能超顺磁性氧化铁含金纳米壳(SPIO@AUNS)。基于SPIO@AUNS固有的高近红外光吸收率和强磁性,我们对小鼠肿瘤进行了体内双模式PA-MR成像。PA和MR引导的成像可以监测我们的多功能纳米材料介导的光热治疗的疗效。此外,使用我们的脉冲激光PA技术,我们还观察到静脉注射SPIO@AUNS后肿瘤血管的结构更加清晰。新型的双PA-MRI图像引导PTA治疗为肿瘤的同时诊断和治疗提供了一个很有前途的新平台。
Nanoparticle based image-guided therapy is an emerging technology for cancer in recent years. Here, we report simultaneous photoacoustic (PA)- and magnetic resonance (MR)-guided photothermal ablation (PTA) therapy using multifunctional superparamagnetic iron oxide-containing gold nanoshells (SPIO@AuNS). Based on the intrinsic high near-infrared optical absorbance and strong magnetic property of SPIO@AuNS, we carried out in vivo dual-modality PA-MR imaging of mouse tumors. PA- and MR-guided imaging can monitor therapeutic effect after photothermal therapy mediated by our multifunctional nanomaterial. In addition, using our pulsed laser PA technique, we also observe a clearer structure of the tumor vasculature after intravenously administration SPIO@AuNS. The novel dual PA-MRI image-guided PTA therapy provides a promising new platform for cancer diagnosis and treatment simultaneously.
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