DEK overexpression in uterine cervical cancers

Area of Science:

• Oncology
• Molecular Biology
• Gynecologic Pathology

Background:

• Cervical cancer remains a significant global health concern.
• Human Papillomavirus (HPV) infection is a primary cause of cervical carcinogenesis.
• The role of specific proteins, like DEK, in cervical lesion development requires further elucidation.

Purpose of the Study:

• To investigate the expression patterns of DEK protein in various uterine cervical lesions.
• To determine the correlation between DEK protein expression and HPV infection status in cervical lesions.
• To assess the potential of DEK as a diagnostic marker and therapeutic target in cervical cancer.

Main Methods:

• Immunohistochemistry was employed to detect DEK protein expression in 253 cervical tissue samples, including non-neoplastic epithelia, cervical intraepithelial neoplasias (CIN), squamous cell carcinomas (SCC), adenocarcinomas, and adenosquamous cell carcinomas.
• HPV screening was conducted using TaKaRa polymerase chain reaction.
• HPV-positive and -negative cervical cancer cell lines were analyzed for DEK expression via immunocytochemistry for comparative analysis.

Main Results:

• DEK protein was consistently negative in non-neoplastic cervical epithelia.
• High percentages of DEK positivity were observed in cervical intraepithelial neoplasias (CIN-1: 85.7%, CIN-2: 94.1%, CIN-3: 89.5%) and cervical cancers (SCC: 96.1%, Adenocarcinoma: 92.2%, AdenoSCC: 100%).
• DEK expression levels showed no significant association with HPV infection status in the studied cervical lesions.

Conclusions:

• DEK protein expression is significantly elevated in cervical intraepithelial neoplasias and cervical cancers, suggesting its crucial role in cervical carcinogenesis.
• DEK protein serves as a potential biomarker for the early diagnosis of cervical lesions.
• DEK protein represents a promising therapeutic target for cervical cancer treatment.