p53 mutations and overexpression in locally advanced breast cancers
1994

p53 Mutations in Locally Advanced Breast Cancers

Sample size: 39 publication Evidence: moderate

Author Information

Author(s): A. Faille, P. De Cremoux, J.M. Extra, G. Linares, M. Espie, E. Bourstyn, A. De Rocquancourt, S. Giacchetti, M. Marty, F. Calvo

Primary Institution: Hopital Saint Louis, Paris, France

Hypothesis

What is the mutational pattern of p53 in locally advanced breast cancers and how does it relate to clinical outcomes?

Conclusion

p53 mutations are associated with larger tumor size and the presence of metastases in locally advanced breast cancers.

Supporting Evidence

  • 16 out of 39 patients showed p53 mutations.
  • p53 mutations were significantly associated with larger tumor diameter.
  • Patients with p53 mutations had a higher rate of clinical metastases.

Takeaway

This study looked at breast cancer patients to see if changes in a gene called p53 were linked to bigger tumors and more spread of the cancer.

Methodology

The study analyzed p53 mutations using PCR-SSCP and immunohistochemistry in tumor samples from 39 patients with locally advanced breast cancer.

Limitations

The study was limited to a small, homogeneous group of patients and may not be generalizable to all breast cancer patients.

Participant Demographics

Patients were classified as having locally advanced breast cancer (stage III-IV), with a majority being inflammatory breast cancer (IBC) type.

Statistical Information

P-Value

0.0062

Statistical Significance

p<0.05

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