Exon Expression Arrays as a Tool to Identify New Cancer Genes
2008

Using PAC to Find New Cancer Genes

Sample size: 12 publication Evidence: high

Author Information

Author(s): Schutte Mieke, Elstrodt Fons, Bralten Linda B. C., Nagel Jord H. A., Duijm Elza, Hollestelle Antoinette, Vuerhard Maartje J., Wasielewski Marijke, Peeters Justine K., van der Spek Peter, Sillevis Smitt Peter A., French Pim J.

Primary Institution: Erasmus University Medical Center, Rotterdam, The Netherlands

Hypothesis

Can the PAC algorithm effectively identify exon-skipping mutations in cancer genes?

Conclusion

The PAC algorithm successfully identified known and novel genetic changes associated with cancer, confirming its utility in cancer gene identification.

Supporting Evidence

  • PAC detected all seven exon-skipping mutants among 12 cancer cell lines.
  • PAC identified two novel exon skipping events and several known SNPs.
  • The true positive rate of PAC increased significantly with stricter cut-off values.

Takeaway

Researchers developed a new method called PAC to find missing pieces in cancer genes, and it worked really well to spot problems in the genes of cancer cells.

Methodology

The study used exon expression profiling with Affymetrix Human Exon Arrays and the PAC algorithm to identify outlier exons in cancer samples.

Limitations

PAC performance may be compromised in samples with high levels of wild-type transcripts or when mutations are recurrent.

Participant Demographics

The study involved 12 human breast cancer cell lines and 14 clinical glioblastoma specimens.

Digital Object Identifier (DOI)

10.1371/journal.pone.0003007

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