Expression of human peroxiredoxin isoforms in response to cervical carcinogenesis.

Despite considerable progress in understanding the function of peroxiredoxin (Prx) in cancer, its expression patterns have not been extensively studied in response to cervical carcinogenesis. We evaluated the expression of Prx isoforms in normal tissue, cervical intraepithelial neoplasia (CIN1, CIN2, and CIN3), and cervical cancer. We found strong pattern of increased Prx II and III immunostaining with increasing severity of the lesion. No difference in staining intensity by grade of lesion was observed for Prx I, and IV. Therefore, we conclude that Prx II and III are upregulated in response to the development of cervical cancer.