European Journal of Gynaecological Oncology (EJGO) is published by IMR Press from Volume 40 Issue 1 (2019). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.
The role of p53, Bcl-2 and Ki-67 in premalignant cervical lesions and cervical cancer
Purpose: The aim of this study was to determine the role of p53, Bcl-2 and Ki-67 expression in the carcinogenesis of cervical carcinoma and aggressiveness of cervical intraepithelial neoplasia (CIN). Methods: The pathology specimens of 63 patients with a diagnosis of normal squamous epithelium (22 cases), CIN I (14), CIN II (5), CIN III (8) and squamous cell carcinoma (14) were evaluated immunohistochemically for the expression of- p53, Bcl-2 and Ki-67 in paraffin sections. Result: The expression of p53 and Ki-67_increased proportionally to the grade of CIN and cervical cancer, but only the increase of p53 expression was statistically significant (p= 0.002) There was no significant correlation between Bcl-2 expression and premalignant and malignant cervical lesions. Conclusion: p53 expression may have a role in the carcinogenesis of squamous cell cervical carcinoma whereas Bcl-2 expression has no role. Ki-67 expression can not be used in determining the aggressiveness of CIN lesions.