Association of p53 codon 72 polymorphism with advanced lung cancer: the Arg allele is preferentially retained in tumours arising in Arg/Pro germline heterozygotes
2002

p53 Gene and Lung Cancer

Sample size: 153 publication 10 minutes Evidence: high

Author Information

Author(s): Papadakis E D, Soulitzis N, Spandidos D A

Primary Institution: University of Crete

Hypothesis

Is there an association between p53 codon 72 polymorphism and advanced lung cancer?

Conclusion

The study found that the p53 Arg allele is preferentially retained in lung cancer patients with the Arg/Pro genotype.

Supporting Evidence

  • p53 Arg/Arg genotype was significantly increased in lung cancer patients compared to normal controls (50% vs 24.2%).
  • Loss of heterozygosity at the TP53 locus was found in 51.85% of Arg/Pro patients.
  • HPV was detected in only 3.7% of lung cancer patients, suggesting it does not play a significant role in lung carcinogenesis.

Takeaway

This study looked at a gene that can affect cancer risk and found that one version of the gene is more common in lung cancer patients.

Methodology

The study analyzed the genotypic frequency of p53 codon 72 polymorphism in lung cancer patients and healthy controls using PCR and microsatellite analysis.

Potential Biases

Potential selection bias due to the nature of the patient population and control group matching.

Limitations

The study was limited to a specific geographical region and population, which may affect the generalizability of the results.

Participant Demographics

54 Greek Caucasian patients with advanced lung cancer and 99 healthy Greek Caucasian controls.

Statistical Information

P-Value

<0.002

Confidence Interval

95% CI=1.46–6.73

Statistical Significance

p<0.002

Digital Object Identifier (DOI)

10.1038/sj.bjc.6600595

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