Activatable probes for diagnosing and positioning liver injury and metastatic tumors by multispectral optoacoustic tomography.

Activatable probes for diagnosing and positioning liver injury and metastatic tumors by multispectral optoacoustic tomography.
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通过多光谱光声断层扫描诊断和定位肝损伤和转移性肿瘤的可激活探针

DOI:
10.1038/s41467-018-06499-1
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发表时间:
2018-09-28
影响因子:
16.6
通讯作者:
Wu S
Wu S
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Wu Y;Huang S;Wang J;Sun L;Zeng F;Wu S

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光声层析成像是一种新兴的成像技术,在医学诊断和临床前研究中显示出巨大的潜力。合理设计可激活的光声探针,实现疾病诊断和病灶定位,可以充分发挥光声断层成像(OAT)的无创性作用。在这里,我们报告了两种基于吨的光声探针(C1 X-OR 1和C2 X-OR 2),用于肝脏碱性磷酸酶(或β-半乳糖苷酶)的时空成像,以评估和定位药物诱导的肝损伤(或转移性肿瘤)。探针通过显示红移的NIR吸收带快速响应疾病特异性生物标志物,并产生显著的光声信号。使用多光谱光声断层扫描(MSOT),我们可以精确地定位在小鼠中使用C1 X-OR 1的药物诱导的肝损伤的焦点,和使用C2 X-OR 2的转移性肿瘤。这项工作表明,可激活的光声发色团可能用于诊断和定位病灶,特别是较小和较深的病灶。
Optoacoustic tomography (photoacoustic tomography) is an emerging imaging technology displaying great potential for medical diagnosis and preclinical research. Rationally designing activatable optoacoustic probes capable of diagnosing diseases and locating their foci can bring into full play the role of optoacoustic tomography (OAT) as a promising noninvasive imaging modality. Here we report two xanthene-based optoacoustic probes (C1X-OR1and C2X-OR2) for temporospatial imaging of hepatic alkaline phosphatase (or β-galactosidase) for evaluating and locating drug-induced liver injury (or metastatic tumor). The probes rapidly respond to the disease-specific biomarkers by displaying red-shifted NIR absorption bands and generate prominent optoacoustic signals. Using multispectral optoacoustic tomography (MSOT), we can precisely localize the focus of drug-induced liver injury in mice using C1X-OR1, and the metastatic tumors using C2X-OR2. This work suggests that the activatable optoacoustic chromophores may potentially be applied for diagnosing and localizing disease foci, especially smaller and deeper ones.
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