The expression of p73 is increased in lung cancer, independent of p53 gene alteration
1999

Increased p73 Expression in Lung Cancer

Sample size: 60 publication Evidence: moderate

Author Information

Author(s): Tokuchi Y, Hashimoto T, Kobayashi Y, Hayashi M, Nishida K, Hayashi S, Imai K, Nakachi K, Ishikawa Y, Nakagawa K, Kawakami Y, Tsuchiya E

Primary Institution: Saitama Cancer Center Research Institute

Hypothesis

Is p73 expression involved in lung carcinogenesis?

Conclusion

The study found that p73 expression is significantly higher in lung cancer tissues compared to normal lung tissues.

Supporting Evidence

  • In 87% of cases, p73 expression in tumors was more than twice as high as in paired normal lung tissues.
  • The difference in p73 expression between tumor and normal lung tissue was statistically significant.
  • 43% of cases showed p53 gene alteration, but there was no correlation with p73 overexpression.

Takeaway

Researchers looked at lung cancer samples and found that a gene called p73 is much more active in cancer cells than in normal cells.

Methodology

The study used semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) to examine p73 expression and various genetic analyses to assess p53 alterations.

Limitations

The study did not explore the functional role of p73 in detail.

Participant Demographics

The study included lung cancer patients with varying clinicopathological characteristics.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1038/sj.bjc.6690572

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