p21 Expression in Stage I Melanoma and Its Impact on Survival
Author Information
Author(s): Karjalainen J M, Reinikainen M, Kosma V-M
Primary Institution: Kuopio University Hospital
Hypothesis
The study investigates the relationship between p21 expression and survival in stage I cutaneous malignant melanoma patients.
Conclusion
High p21 expression may indicate a more favorable prognosis in stage I melanoma, but other stronger mechanisms may influence survival.
Supporting Evidence
- p21 expression was significantly associated with p53 and PCNA expression levels.
- High levels of p53 and PCNA were significantly interrelated.
- Tumour thickness and recurrent disease were inversely associated with p21 expression.
- Gender, bleeding, and tumour thickness were important predictors of survival.
- In Cox's analysis, high tumour thickness and bleeding predicted poor survival.
Takeaway
This study looked at how a protein called p21 affects survival in skin cancer patients, finding that higher levels of p21 might be good, but other factors are also important.
Methodology
Immunohistochemistry was used to analyze the expression of p21, p53, and PCNA in melanoma patients.
Limitations
The study may not account for all potential confounding factors influencing survival.
Participant Demographics
Patients were clinical stage I cutaneous malignant melanoma patients, with a mean age of 55 years or older.
Statistical Information
P-Value
0.0042, 0.0087, 0.0147, 0.0033
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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