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Microarray-based expression profiling in prostate tumors.

J Elek1, K H Park, R Narayanan

  • 1Center for Molecular Biology and Biotechnology, Florida Atlantic University, Boca Raton 33431, USA.

In Vivo (Athens, Greece)
|April 11, 2000
PubMed
Summary
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High-throughput gene expression profiling using microarrays rapidly identified differentially expressed genes in prostate cancer. Glutathione-S-transferase theta 1 (GSTT1) was validated as a potential cancer marker.

Area of Science:

  • Genomics
  • Molecular Biology
  • Oncology

Background:

  • High-throughput gene expression profiling is crucial for identifying disease-specific genes.
  • Microarrays enable simultaneous analysis of thousands of genes.

Purpose of the Study:

  • To investigate the utility of microarrays for identifying prostate cancer-specific genes.
  • To validate candidate genes using a cDNA repository and RT-PCR.

Main Methods:

  • Analysis of a 588-gene microarray using cDNA from normal and prostate tumor tissues.
  • Validation of differentially expressed genes via RT-PCR.
  • Assessment of gene expression relevance in solid tumors and cell lines.

Main Results:

  • 19 out of 588 genes showed differential expression in prostate tumors compared to normal tissue.

Related Experiment Videos

  • Glutathione-S-transferase theta 1 (GSTT1) expression correlated with microarray findings.
  • GSTT1 expression relevance was rapidly validated in various solid tumors.

    • Conclusions:

    • Microarray analysis combined with a cDNA repository facilitates rapid identification of potential therapeutic and diagnostic targets in cancer.
    • GSTT1 is a promising candidate marker for prostate and other cancers.
    • Microarrays aid in preliminary identification of androgen-regulated genes in prostate cancer models.