A label-free supersandwich electrogenerated chemiluminescence method for the detection of DNA methylation and assay of the methyltransferase activity

被引:53
作者
Li, Yan [1 ]
Luo, Xiaoe [1 ]
Yan, Zhao [1 ]
Zheng, Jianbin [1 ]
Qi, Honglan [2 ]
机构
[1] NW Univ Xian, Inst Analyt Sci, Key Lab Electroanalyt Chem, Xian 710069, Shaanxi, Peoples R China
[2] Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Analyt Chem Life Sci Shaanxi Prov, Xian 710062, Peoples R China
关键词
ELECTROCHEMILUMINESCENCE IMMUNOSENSOR; COLORIMETRIC ASSAY; COMPLEX MATRICES; NANOPARTICLES; HYPERMETHYLATION; UNIVERSAL; SYSTEM;
D O I
10.1039/c3cc00203a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A method based on electrogenerated chemiluminescence (ECL) for detection of DNA methylation and assay of the methyltransferase activity is developed, and it is demonstrated that the label-free ECL method is capable of detecting methyltransferase with a detection limit of 3 x 10(-6) U mL(-1), using a supersandwich amplification technique.
引用
收藏
页码:3869 / 3871
页数:3
相关论文
共 31 条
[1]   Nanoparticles with Raman spectroscopic fingerprints for DNA and RNA detection [J].
Cao, YWC ;
Jin, RC ;
Mirkin, CA .
SCIENCE, 2002, 297 (5586) :1536-1540
[2]   DNA Methylation Increases Nucleosome Compaction and Rigidity [J].
Choy, John S. ;
Wei, Sijie ;
Lee, Ju Yeon ;
Tan, Song ;
Chu, Steven ;
Lee, Tae-Hee .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (06) :1782-+
[3]   CpG island hypermethylation and tumor suppressor genes: a booming present, a brighter future [J].
Esteller, M .
ONCOGENE, 2002, 21 (35) :5427-5440
[4]  
Esteller M, 2001, CANCER RES, V61, P3225
[5]   Fluorescent conjugated polyelectrolyte as an indicator for convenient detection of DNA methylation [J].
Feng, Fude ;
Wang, Hongzhong ;
Han, Lingli ;
Wang, Shu .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (34) :11338-11343
[6]   Electrogenerated Chemiluminescence [J].
Forster, Robert J. ;
Bertoncello, Paolo ;
Keyes, Tia E. .
ANNUAL REVIEW OF ANALYTICAL CHEMISTRY, 2009, 2 :359-385
[7]  
Fraga MF, 2000, ELECTROPHORESIS, V21, P2990, DOI 10.1002/1522-2683(20000801)21:14<2990::AID-ELPS2990>3.0.CO
[8]  
2-I
[9]   A method to assess genomic DNA methylation using high-performance liquid chromatography/electrospray ionization mass spectrometry [J].
Friso, S ;
Choi, SW ;
Dolnikowski, GG ;
Selhub, J .
ANALYTICAL CHEMISTRY, 2002, 74 (17) :4526-4531
[10]   An electrochemical peptide-based biosensing platform for HIV detection [J].
Gerasimov, Jennifer Y. ;
Lai, Rebecca Y. .
CHEMICAL COMMUNICATIONS, 2010, 46 (03) :395-397