Small nucleolar RNA signatures as biomarkers for non-small-cell lung cancer.

Small nucleolar RNA signatures as biomarkers for non-small-cell lung cancer.
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小核仁 RNA 特征作为非小细胞肺癌的生物标志物

DOI:
10.1186/1476-4598-9-198
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发表时间:
2010-07-27
期刊:
影响因子:
37.3
通讯作者:
Jiang F
Jiang F
中科院分区:
医学1区
文献类型:
--
作者:
Liao J;Yu L;Mei Y;Guarnera M;Shen J;Li R;Liu Z;Jiang F

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背景非小细胞肺癌(NSCLC)是癌症死亡的主要原因。早期发现非小细胞肺癌将改善其结果。目前非小细胞肺癌早期检测技术要么是侵入性的,要么准确性较低。临床标本的分子分析提供了有前途的诊断方法。非编码 RNA (ncRNA) 在肿瘤发生中发挥重要作用,可开发为癌症的生物标志物。在这里,我们的目标是开发小核仁 RNA (snoRNA)(一种常见的 ncRNA),作为 NSCLC 早期检测的生物标志物。该研究包括三个阶段:(1) 通过 GeneChip Array 分析 22 例 NSCLC 组织和匹配的非癌性肺组织中的 snoRNA 特征,(2) 通过 RT-qPCR 验证组织中特征的表达,以及 (3) 评估 37 名 NSCLC 患者、26 名慢性阻塞性肺病 (COPD) 患者和 22 名健康受试者中 snoRNA 的血浆表达。结果在手术组织中,有 6 种 snoRNA 被检测到。鉴定出,与正常组织相比,它们在所有肿瘤组织中均过度表达。 RT-qPCR 证实了肿瘤中基因的过度表达。 snoRNA 在血浆中稳定存在且可可靠检测。在这 6 个基因中,其中 3 个(SNORD33、SNORD66 和 SNORD76)在 NSCLC 患者中的血浆表达量高于无癌症个体(全部 < 0.01)。使用这三个基因在区分 NSCLC 患者与正常人和 COPD 受试者方面产生了 81.1% 的敏感性和 95.8% 的特异性。血浆snoRNA表达与NSCLC分期和组织学类型无关(均>0.05)。结论所鉴定的snoRNA为NSCLC早期检测提供了潜在的标志物。
BackgroundNon-small-cell lung cancer (NSCLC) is the leading cause of cancer death. Early detection of NSCLC will improve its outcome. The current techniques for NSCLC early detection are either invasive or have low accuracy. Molecular analyses of clinical specimens present promising diagnostic approaches. Non-coding RNAs (ncRNAs) play an important role in tumorigenesis and could be developed as biomarkers for cancer. Here we aimed to develop small nucleolar RNAs (snoRNAs), a common class of ncRNAs, as biomarkers for NSCLC early detection. The study comprised three phases: (1) profiling snoRNA signatures in 22 NSCLC tissues and matched noncancerous lung tissues by GeneChip Array, (2) validating expressions of the signatures by RT-qPCR in the tissues, and (3) evaluating plasma expressions of the snoRNAs in 37 NSCLC patients, 26 patients with chronic obstructive pulmonary disease (COPD), and 22 healthy subjects.ResultsIn the surgical tissues, six snoRNAs were identified, which were overexpressed in all tumour tissues compared with their normal counterparts. The overexpressions of the genes in tumors were confirmed by RT-qPCR. The snoRNAs were stably present and reliably detectable in plasma. Of the six genes, three (SNORD33, SNORD66 and SNORD76) displayed higher plasma expressions in NSCLC patients compared with the cancer-free individuals (All < 0.01). The use of the three genes produced 81.1% sensitivity and 95.8% specificity in distinguishing NSCLC patients from both normal and COPD subjects. The plasma snoRNA expressions were not associated with stages and histological types of NSCLC (All > 0.05).ConclusionsThe identified snoRNAs provide potential markers for NSCLC early detection.
DOI: 10.1038/nature03702
发表时间: 2005-06-09
期刊: NATURE
影响因子: 64.8
作者:
Lu, J;Getz, G;Golub, TR
通讯作者: Golub, TR
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发表时间: 2010-02-18
期刊: Genome medicine
影响因子: 12.3
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DOI: 10.1073/pnas.250426397
发表时间: 2000-12-19
影响因子: 11.1
作者:
Cavaillé, J;Buiting, K;Hüttenhofer, A
通讯作者: Hüttenhofer, A