Chemiluminescent analysis of gene expression on high-density filter arrays

被引:24
作者
Rajeevan, MS [1 ]
Dimulescu, IM [1 ]
Unger, ER [1 ]
Vernon, SD [1 ]
机构
[1] Ctr Dis Control & Prevent, Div Viral & Rickettsial Dis, Ctr Infect Dis, US Dept Hlth & Human Serv, Atlanta, GA 30333 USA
关键词
gene expression monitoring; chemiluminescent detection; high-density filter arrays; cDNA synthesis;
D O I
10.1177/002215549904700307
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
We have optimized conditions for the chemiluminescent analysis of gene expression using high-density filter arrays (HDFAs). High sensitivity and specificity were achieved by optimizing cDNA probe synthesis, hybridization, and detection parameters. The chemiluminescent expression profile reflected expected differences in the transcripts isolated from different sources (placenta and keratinocytes). We estimated the detection limit for low-abundance message to be 1-15 transcripts per cell, a sensitivity rivaling that reported for microarray formats and exceeding that reported for autoradiographic HDFAs. The method allows for short exposure times and reuse of probe. It should be equally applicable to techniques such as differential screening of cDNA libraries and differential display PCR.
引用
收藏
页码:337 / 342
页数:6
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