PCNA independence of Ki‐67 expression in HPV infection.

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Abstract
12 Infectious Wart lesions were stained using the streptavidin-biotin immunoperoxidase method for PCNA10, MIB-1 (Ki-67 equivalent antigen) and Human Papilloma Virus antigen to study the effect of HPV presence on epidermal proliferation. Using strict methods to avoid observer bias, Ki-67 antigen was found in a high proportion of nuclei in the suprabasal layers together with HPV antigens, in the absence of PCNA staining. This finding indicates that DNA synthesis related, Ki-67 antigen bearing structures can be raised in the human nucleus in the absence of induction of PCNA bearing structures, suggesting also structural independence between the antigen bearing molecules.

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