High-level expression of Rad51 is an independent prognostic marker of survival in non-small-cell lung cancer patients
2005

Rad51 as a Prognostic Marker in Lung Cancer

Sample size: 383 publication Evidence: high

Author Information

Author(s): Qiao G-B, Wu Y-L, Yang X-N, Zhong W-Z, Xie D, Guan X-Y, Fischer D, Kolberg H-C, Kruger S, Stuerzbecher H-W

Primary Institution: Lung Cancer Research Institute & Cancer Center, Guangdong Provincial People's Hospital, Guangzhou, P.R. China

Hypothesis

The decreased survival of NSCLC patients with high-level expression of Rad51 is related to an enhanced propensity of tumour cells for survival, antiapoptosis and chemo-/radioresistance.

Conclusion

High-level Rad51 expression in non-small-cell lung cancer patients is associated with poorer survival outcomes.

Supporting Evidence

  • High-level Rad51 expression was observed in 29.4% of cases.
  • Patients with high-level Rad51 expression had a median survival time of 19 months compared to 68 months for those with low-level expression.
  • Rad51 expression was found to be an independent prognostic factor in multivariate analysis.

Takeaway

This study found that patients with high levels of a protein called Rad51 in their lung cancer cells tend to live shorter lives than those with lower levels.

Methodology

The study analyzed Rad51 expression in 383 non-small-cell lung tumors using immunohistochemistry on tissue microarrays.

Limitations

Data on smoking history were missing for the majority of patients.

Participant Demographics

The median age of patients was 59 years, with 71.3% being male.

Statistical Information

P-Value

p<0.0001

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1038/sj.bjc.6602665

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