alexa The p53 molecule and its prognostic role in squamous cell carcinomas of the head and neck.
Agri and Aquaculture

Agri and Aquaculture

Journal of Marine Science: Research & Development

Author(s): Nylander K, Dabelsteen E, Hall PA

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Abstract Despite intense research, the 5-year survival rate for patients with squamous cell carcinoma of the head and neck (SCCHN) is still low. Several different factors have been studied in the search for one or more factors that give important prognostic information at the time of diagnosis. Many recent studies have focused on the TP53 tumour suppressor gene, analysing its gene status and protein status. When looking at p53 protein expression, using immunohistochemistry, no correlation to patient outcome has been seen for the whole group of SCCHN. However, a significant association between p53 expression and poor patient outcome was found when looking only at patients with laryngeal squamous cell carcinomas. Also, in oral premalignant lesions, expression of p53-positive cells in the suprabasal layers of the epithelium has been seen as an indication of impending malignant development. Concerning the prognostic significance of mutations in the TP53 gene, results differ. But when restricting analysis to tumours with mutations causing an obvious change in protein, TP53 mutation was found to be a strong and independent variable for prognosticating survival. This review article gives an up-to-date overview of the p53 molecule and evaluates its possible prognostic role in SCCHN. Today it is clear that the p53 pathway is very important in SCCHN biology and potentially in its treatment. The function and importance of a few other cell cycle proteins connected to p53 are also discussed.
This article was published in J Oral Pathol Med and referenced in Journal of Marine Science: Research & Development

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