Utilizing Gold Nanoparticle Probes to Visually Detect DNA Methylation | |
Chen K(陈奎); Zhang MY(张铭倚); Chang YN(常亚男); Xia L(夏林); Gu WH(古伟宏); Qin YX(秦艳霞); Xing GM(邢更妹); Chen, K; Zhang, MY; Chang, YN | |
刊名 | NANOSCALE RESEARCH LETTERS |
2016 | |
卷号 | 11期号:1页码:304 |
关键词 | DNA methylation Gold nanoparticles probe Surface plasmon resonance Visual detection Semi-quantitative assay |
DOI | 10.1186/s11671-016-1487-5 |
通讯作者 | 邢更妹 |
文献子类 | 期刊论文 |
英文摘要 | The surface plasmon resonance (SPR) effect endows gold nanoparticles (GNPs) with the ability to visualize biomolecules. In the present study, we designed and constructed a GNP probe to allow the semi-quantitative analysis of methylated tumor suppressor genes in cultured cells. To construct the probe, the GNP surfaces were coated with single-stranded DNA (ssDNA) by forming Au-S bonds. The ssDNA contains a thiolated 5'-end, a regulatory domain of 12 adenine nucleotides, and a functional domain with absolute pairing with methylated p16 sequence (Met-p16). The probe, paired with Met-p16, clearly changed the color of aggregating GNPs probe in 5 mol/L NaCl solution. Utilizing the probe, p16 gene methylation in HCT116 cells was semi-quantified. Further, the methylation of E-cadherin, p15, and p16 gene in Caco2, HepG2, and HCT116 cell lines were detected by the corresponding probes, constructed with three domains. This simple and cost-effective method was useful for the diagnosis of DNA methylation-related diseases. |
WOS关键词 | COLORIMETRIC DETECTION ; HUMAN CANCERS ; ASSAY ; GENE ; AMPLIFICATION ; HYBRIDIZATION ; INACTIVATION ; AGGREGATION ; CELLS ; SIZE |
语种 | 英语 |
WOS记录号 | WOS:000391788400001 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/260275] |
专题 | 高能物理研究所_多学科研究中心 |
作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | Chen K,Zhang MY,Chang YN,et al. Utilizing Gold Nanoparticle Probes to Visually Detect DNA Methylation[J]. NANOSCALE RESEARCH LETTERS,2016,11(1):304. |
APA | 陈奎.,张铭倚.,常亚男.,夏林.,古伟宏.,...&Xing, GM.(2016).Utilizing Gold Nanoparticle Probes to Visually Detect DNA Methylation.NANOSCALE RESEARCH LETTERS,11(1),304. |
MLA | 陈奎,et al."Utilizing Gold Nanoparticle Probes to Visually Detect DNA Methylation".NANOSCALE RESEARCH LETTERS 11.1(2016):304. |
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