Overexpression of p53 and bcl-2 proteins and the presence of HPV infection are independent events in head and neck cancer.


The expression of p53 and bcl-2 proteins by immunohistochemistry and the identification of human papillomavirus (HPV) infection by a non-isotopic polymerase chain reaction (PCR)based method were investigated in 30 patients with head and neck cancer. Ten cases were HPV-positive (33%), mostly as double or multiple infections by high- or intermediate-risk… (More)


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