Molecular characterization of scant lung tumor cells using iron-oxide nanoparticles and micro-nuclear magnetic resonance.

Molecular characterization of scant lung tumor cells using iron-oxide nanoparticles and micro-nuclear magnetic resonance.
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DOI:
10.1016/j.nano.2013.10.008
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发表时间:
2014-04
影响因子:
5.4
通讯作者:
Weissleder, Ralph
Weissleder, Ralph
中科院分区:
医学2区
文献类型:
--
作者:
Ghazani, Arezou A.;Pectasides, Melina;Sharma, Amita;Castro, Cesar M.;Mino-Kenudson, Mari;Lee, Hakho;Shepard, Jo-Anne O.;Weissleder, Ralph

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纳米技术和微流体技术的进步使对少量人类细胞的分析成为可能。我们测试了近期开发的微核磁共振(μNMR)技术是否可用于通过原发性病变的细针抽吸物(FNA)和/或外周血样本诊断肺部恶性肿瘤。我们招募了一组35名因原发性肺结节、肝脏或肾上腺肿块而被推荐进行CT活检的患者,并同时获取了FNA和外周血样本。FNA取样在91%的病例中为μNMR分析提供了足够的材料,其敏感性和特异性分别为91.6%和100%。有趣的是,在循环肿瘤细胞(CTC)阳性的血液样本中,对每位患者外周血的μNMR分析在100%的样本中得出了相似的诊断(恶性与良性),在90%(18/20)的样本中得出了鉴别诊断(肺部恶性肿瘤亚型)。μNMR似乎是肺癌诊断中一种有价值的非侵入性辅助手段。
Advances in nanotechnology and microfluidics are enabling the analysis of small amounts of human cells. We tested whether recently developed micro-nuclear magnetic resonance (μNMR) technology could be leveraged for diagnosing pulmonary malignancy using fine needle aspirate (FNA) of primary lesions and/or peripheral blood samples. We enrolled a cohort of 35 patients referred for CT biopsy of primary pulmonary nodules, liver or adrenal masses and concurrently obtained FNA and peripheral blood samples. FNA sampling yielded sufficient material for μNMR analysis in 91% of cases and had a sensitivity and specificity of 91.6 and 100% respectively. Interestingly, among blood samples with positive circulating tumor cells (CTC), μNMR analysis of each patient's peripheral blood led to similar diagnosis (malignant vs benign) and differential diagnosis (lung malignancy subtype) in 100% and 90% (18/20) of samples, respectively. μNMR appears to be valuable, non-invasive adjunct in the diagnosis of lung cancer.
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