Prognostic Significance of p53 Overexpression in Gastric and Colorectal Carcinoma
Author Information
Author(s): T. Starzynskal, M. Bromley, A. Ghosh, P.L. Stern
Primary Institution: Medical Pomeranian Academy, Szczecin, Poland; Paterson Institute for Cancer Research, Christie Hospital, NHS Trust, Manchester, UK
Hypothesis
The study investigates the prognostic value of p53 protein expression in gastric and colorectal carcinomas.
Conclusion
p53 overexpression is significantly associated with poor prognosis in gastric and colorectal cancers.
Supporting Evidence
- p53 protein was detected in 47% of gastric and 46% of colorectal carcinomas.
- p53 overexpression correlated with advanced disease stage and poor clinical outcomes.
- 90% of patients with p53 positive gastric cancers died within 2 years post-surgery.
- 69% of p53 positive colorectal cancer patients developed local recurrence or died within the first year post-surgery.
Takeaway
This study found that a protein called p53 is often found in higher amounts in certain stomach and colon cancers, which can mean a worse outcome for patients.
Methodology
Immunohistochemical detection of p53 protein in paraffin-embedded tissue samples from gastric and colorectal carcinomas.
Limitations
Follow-up time was limited, and further long-term studies are needed to confirm findings.
Participant Demographics
Median age for gastric cancer patients was 54.5 years, and for colorectal cancer patients, it was 65.4 years; 65.4% of gastric patients and 66.3% of colorectal patients were male.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
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