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arXiv 2411.03319physics.med-phq-bio.BMq-bio.TO
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基于纳米粒子的近红外荧光探针在癌症特异性成像应用中的进展

Advancements in Nanoparticle-based Near-Infrared Fluorescence Probes for Cancer Specific Imaging Applications

Michael Adeniyi

AI总结:

本文综述了基于纳米粒子的近红外荧光探针在癌症分子成像中的最新进展,重点介绍了其通过EPR效应靶向肿瘤、实现精准诊断与诊疗一体化的核心优势。

摘要:

红外(IR)染料,尤其是近红外(NIR)光谱范围内的染料,因其深层组织穿透能力和极低的背景自发荧光,为体内成像提供了显著优势。含有这些红外染料的纳米粒子,如吲哚菁绿(ICG),其药代动力学行为(包括生物分布模式和清除机制)已得到广泛研究。这些纳米粒子通常通过增强渗透性和滞留(EPR)效应优先积聚在肿瘤组织中,从而使其成为先进肿瘤成像和精准靶向药物递送系统的有力工具。近红外荧光(NIRF)用于大规模组织成像的发展归因于其能够对器官进行高度特异性的靶向可视化。近红外光谱的独特性质,包括其对结合组织内特定部位的生物分子的选择性吸收、极低的自发荧光以及减少的光散射,使其成为癌症成像的有吸引力的选择。与传统的结构成像系统不同,分子成像利用这些特性在分子水平上区分恶性和正常组织,提供了更精细、更精确的诊断能力。本综述及时且全面地概述了基于纳米粒子的NIRF探针和多功能试剂在癌症分子成像中的最新进展。这些进展将通过NIRF成像扩展当前癌症诊疗一体化的概念。

英文摘要:

Infrared (IR) dyes, especially those within the near-infrared (NIR) spectrum, offer substantial advantages for in vivo imaging, owing to their deep tissue penetration and minimal background autofluorescence. Nanoparticles incorporating these IR dyes, such as indocyanine green (ICG) have undergone extensive investigation regarding their pharmacokinetic behavior, including biodistribution patterns and clearance mechanisms. These nanoparticles often preferentially accumulate in tumor tissues, primarily through the enhanced permeability and retention (EPR) effect, thereby establishing them as potent instruments for sophisticated tumor imaging and precision-targeted drug delivery systems. The development of near-infrared fluorescence (NIRF) for large-scale tissue imaging is attributed to its ability to generate highly specific, targeted visualization of organs. The distinctive properties of the near-infrared spectrum, including its selective absorption by biomolecules that bind to specific sites within tissues, minimal autofluorescence, and reduced light scattering, make it an appealing option for cancer imaging. Unlike the conventional structural imaging system, molecular imaging leverages these properties to differentiate between malignant and normal tissues at the molecular level, offering a more refined and precise diagnostic capability. This review offers a timely and comprehensive overview of the latest advancements in Nanoparticle-based NIRF probes and multifunctional agents for cancer molecular imaging. These advances will extend the current concepts of cancer theranostics by NIRF imaging.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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