Dramatic increase in signal by integration of polymerase chain reaction and hybridization on surface of DNA microarray

Kyung Tae Kim, Chan-Hyun Na, Yeo Min Yun, Tae Sook Hwang, Soo Nyung Kim, Chi Bom Chae

Research output: Contribution to journalArticle

Abstract

The cumbersome process required for diagnosis by DNA microarray can be simplified by simple extraction of nucleic acid from cells and by integration of liquid-phase polymerase chain reaction (PCR) and hybridization on the surface of a microarray slide. An unexpected benefit was the large (five- to sixfold) increase in detection signal that also is translated into an increase in sensitivity and the confidence level of diagnosis. The large increase in the detection signal appears to be due to participation of PCR primers as well as to extension of the immobilized capture probes during the hybridization process. The reason for the large increase in signal is not clear in view of only one round of DNA synthesis during the hybridization step. The integrated process correctly identified various genotypes of human papillomavirus (HPV) in the infected clinical human cervical specimens with specificity and efficiency. The process described in this article saves labor, time, and cost and should be applicable for automation of diagnosis by DNA microarray.

Original languageEnglish (US)
Pages (from-to)139-145
Number of pages7
JournalAnalytical Biochemistry
Volume396
Issue number1
DOIs
StatePublished - Jan 1 2010
Externally publishedYes

Fingerprint

Polymerase chain reaction
Microarrays
Oligonucleotide Array Sequence Analysis
Signal detection
Polymerase Chain Reaction
DNA
Automation
Nucleic Acids
Genotype
Personnel
Costs and Cost Analysis
Liquids
Costs

Keywords

  • Genotyping of HPV
  • Integration of PCR and hybridization
  • Microarray
  • Molecular diagnostics

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology
  • Cell Biology

Cite this

Dramatic increase in signal by integration of polymerase chain reaction and hybridization on surface of DNA microarray. / Kim, Kyung Tae; Na, Chan-Hyun; Yun, Yeo Min; Hwang, Tae Sook; Kim, Soo Nyung; Chae, Chi Bom.

In: Analytical Biochemistry, Vol. 396, No. 1, 01.01.2010, p. 139-145.

Research output: Contribution to journalArticle

Kim, Kyung Tae ; Na, Chan-Hyun ; Yun, Yeo Min ; Hwang, Tae Sook ; Kim, Soo Nyung ; Chae, Chi Bom. / Dramatic increase in signal by integration of polymerase chain reaction and hybridization on surface of DNA microarray. In: Analytical Biochemistry. 2010 ; Vol. 396, No. 1. pp. 139-145.
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