Overexpression of aurora B kinase (AURKB) in primary non-small cell lung carcinoma is frequent, generally driven from one allele, and correlates with the level of genetic instability
2005

Aurora B Kinase Overexpression in Lung Cancer

Sample size: 48 publication 10 minutes Evidence: moderate

Author Information

Author(s): Smith S L, Bowers N L, Betticher D C, Gautschi O, Ratschiller D, Hoban P R, Booton R, Santibáñez-Koref M F, Heighway J

Primary Institution: University of Liverpool Cancer Research Centre

Hypothesis

Is there a correlation between aurora B kinase expression levels and genetic instability in lung cancer?

Conclusion

The study found that high levels of aurora B kinase expression in lung cancer are associated with increased genetic instability.

Supporting Evidence

  • 93% of tumors showed over-representation of AURKB transcripts compared to normal lung tissue.
  • High AURKB expression was associated with shorter progression-free survival.
  • Allelic imbalance was observed in 7 out of 9 heterozygous patients.

Takeaway

This study shows that a protein called aurora B kinase is often found in high amounts in lung cancer, which might make the cancer more unstable and harder to treat.

Methodology

The study used RNA and DNA extracted from tumor and matched normal lung tissue samples, followed by comparative multiplex RT-PCR and quantitative real-time PCR to analyze gene expression.

Potential Biases

Potential bias due to the small number of patients and the specific focus on certain genes.

Limitations

The study had a small sample size and focused on a limited number of genes.

Participant Demographics

Patients were Swiss and Liverpool residents with primary non-small cell lung carcinoma.

Statistical Information

P-Value

0.0012

Statistical Significance

p=0.0012

Digital Object Identifier (DOI)

10.1038/sj.bjc.6602779

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