Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2014, 158(1):044-049 | DOI: 10.5507/bp.2012.035
Investigation of tumour supressor protein p53 in renal cell carcinoma patients
- a Department of Anatomy, P. J. Safarik University, Faculty of Medicine, Kosice, Slovak Republic
- b Department of Cell Biology, P. J. Safarik University, Faculty of Science, Kosice, Slovak Republic
- c Institute of Histology and Embryology, Comenius University, Jessenius Faculty of Medicine, Martin, Slovak Republic
Background: Investigation of p53 immunoreactivity in formalin-fixed paraffin-embedded tissues of normal renal tissue and renal cell carcinoma with respect to histopathologic subtype and nuclear grade of RCC.
Methods: 42 tissue sections of RCC and 5 samples of normal renal tissue were stained for p53 expression using immunohistochemical assay. The results were analyzed in relation to nuclear grade and histopathologic subtype.
Results: In total, p53 expression was found to be 4 to 5 times higher (30.8%) in other types of RCC than in the clear-cell type of RCC (6.9%). Further, there was no statistically significant difference in p53 overexpression among the histopathologic subtypes (P>0.05, P=0.063). No association was found between the expression of p53 and nuclear grade (P>0.05, P=0.17). Interestingly, our study also showed weak cytoplasmic positivity in renal tubular epithelium.
Conclusion: Our findings suggest that p53 might play an important role in tumour development or progression and it might be used as a new predictor and therapeutic target for RCC.
Keywords: renal cell carcinoma, expression of p53, immunohistochemistry
Received: June 23, 2011; Accepted: February 28, 2012; Prepublished online: June 1, 2012; Published: April 1, 2014 Show citation
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