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Expression of p27, p21(WAF/Cip1), and p16(INK4a) in normal oral epithelium, oral squamous papilloma, and oral squamous cell carcinoma



Expression of p27, p21(WAF/Cip1), and p16(INK4a) in normal oral epithelium, oral squamous papilloma, and oral squamous cell carcinoma



Anticancer Research 30(7): 2799-2803



To characterize the immunohistochemical expression of p27, p21(WAF/Cip1) and p16(INK4a) in normal oral epithelium, oral squamous papilloma and oral squamous cell carcinoma. Immunohistochemical staining for p27, p21(WAF/Cip1) and p16(INK4a) was evaluated in 32 samples of normal oral squamous epithelium, 30 samples of oral squamous papilloma, and 34 samples of oral squamous cell carcinoma. Statistically significant differences (p<0.05) were found in p27 expression when comparing ordinary mucosa and oral squamous papilloma with the oral squamous cell carcinoma samples. Regarding p21(WAF/Cip1) expression, no statistically significant differences (p>0.05) were noticed. In the same way, no significant statistically differences (p>0.05) were observed for p16(INK4a) among groups. Taken together, these findings indicate that p27 is closely involved in malignant transformation of oral mucosa cells, and may be a reliable biomarker for this purpose.

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Accession: 053155968

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PMID: 20683015


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