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Updated: Jul 14, 2026
07:50
Establishment of a Clinic-based Biorepository
Published on: May 29, 2017
p63 expression as a new prognostic marker in Merkel cell carcinoma
Sofia Asioli1, Alberto Righi, Marco Volante
1Department of Biomedical Sciences and Human Oncology, University of Turin, Italy. sofia.asioli@unito.it
Cancer
|June 30, 2007
Summary
p63 expression is a new prognostic marker for Merkel cell carcinoma (MCC), an aggressive skin cancer. Positive p63 indicates a worse clinical outcome, aiding in patient management.
Area of Science:
- Oncology
- Dermatopathology
- Molecular Pathology
Background:
- Merkel cell carcinoma (MCC) is a rare, aggressive neuroendocrine skin tumor.
- Its histogenesis and prognostic factors remain debated.
Purpose of the Study:
- To investigate the prognostic significance of p63 expression in MCC.
- To evaluate p63 as a potential new marker for clinical evolution.
Main Methods:
- Immunohistochemical analysis of 47 MCC cases using markers for proliferation, neuroendocrine, and basal cell differentiation (p63).
- Statistical evaluation of clinicopathologic data and marker immunoreactivity.
- Survival analysis using Kaplan-Meier and Cox-Mantel tests.
Main Results:
- All cases showed neuroendocrine differentiation and cytokeratin 20 positivity.
- p63 positivity was observed in 53.2% of cases.
- p63-positive MCC cases exhibited a significantly more aggressive clinical course (HR=22.22, P=.0003).
Conclusions:
- p63 expression is associated with a worse prognosis in Merkel cell carcinoma.
- p63 serves as a novel, independent predictor of clinical outcome in MCC patients.
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