Predictive Role of p53 Protein in Oral Carcinogenesis
Author Information
Author(s): Montebugnoli L., Felicetti L., Gissi D.B., Cervellati F., Servidio D., Marchetti C., Prati C., Flamminio F., Foschini M.P.
Primary Institution: University of Bologna
Hypothesis
Can the combination of p53 over-expression and Ki67 over-expression provide a more sensitive parameter for detecting oral carcinogenesis?
Conclusion
The combination of p53 over-expression and high Ki67/p53 ratio may better associate with the occurrence of oral squamous cell carcinoma (OSCC) and severe epithelial dysplasia.
Supporting Evidence
- p53 over-expression was found in 53% of OSCC samples.
- The combination of high p53 values with high Ki67/p53 ratio was observed in 93% of OSCC.
- High Ki67/p53 ratios were found in 83% of OSCC with low p53 expression.
- Low p53 staining was present in more than 40% of OSCC samples.
Takeaway
Researchers looked at how two proteins, p53 and Ki67, can help find early signs of mouth cancer. They found that using both together is better than just looking at one.
Methodology
The study analyzed 126 biopsy samples using immunohistochemical methods to measure p53 and Ki67 expression.
Potential Biases
Histological assessment of dysplasia is subjective and may introduce variability in results.
Limitations
The study had a limited number of controls, which may have affected the statistical significance of the findings.
Participant Demographics
Patients referred to the Department of Oral Sciences at the University of Bologna between January 2004 and September 2006.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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