Molecular optical imaging with radioactive probes.

Molecular optical imaging with radioactive probes.
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DOI:
10.1371/journal.pone.0009470
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发表时间:
2010-03-01
期刊:
影响因子:
3.7
通讯作者:
Cheng Z
Cheng Z
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Liu H;Ren G;Miao Z;Zhang X;Tang X;Han P;Gambhir SS;Cheng Z

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光学成像(OI)技术,如生物发光和荧光成像已被广泛用于以非侵入性的方式跟踪活体内的疾病。这些技术通常需要生物发光和荧光探针。在这里,我们证明了使用放射性探针在体内分子OI的可行性。通过利用辐射产生的低能量光窗口(1.2-3.1 eV,400-1000 nm)的优势,发射带电粒子(如β+和β−)的放射性核素可以成功地用OI仪器成像。可以获得几种放射性探针的体内光学图像,包括2-脱氧-2-[18 F]氟-D-葡萄糖([18 F]FDG)、Na 18 F、Na 131 I、90 YCl 3和特异性靶向肿瘤的90 Y标记肽。这些研究证明了放射性OI技术的普遍性。它提供了一种新的分子成像策略,并可能对小动物和临床成像产生重大影响。
Optical imaging (OI) techniques such as bioluminescence and fluorescence imaging have been widely used to track diseases in a non-invasive manner within living subjects. These techniques generally require bioluminescent and fluorescent probes. Here we demonstrate the feasibility of using radioactive probes for in vivo molecular OI. By taking the advantages of low energy window of light (1.2–3.1 eV, 400–1000 nm) resulting from radiation, radionuclides that emit charged particles such as β+ and β− can be successfully imaged with an OI instrument. In vivo optical images can be obtained for several radioactive probes including 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG), Na18F, Na131I, 90YCl3 and a 90Y labeled peptide that specifically target tumors. These studies demonstrate generalizability of radioactive OI technique. It provides a new molecular imaging strategy and will likely have significant impact on both small animal and clinical imaging.
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