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2018, Volume 34, Number 2, Page(s) 150-057     
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DOI: 10.5146/tjpath.2018.01425
EZH2, Endothelin-1, and CD34 as Biomarkers of Aggressive Cervical Squamous Cell Carcinoma: An Immunohistochemical Study
Department of Pathology, Zagazig University, Faculty of Medicine, ZAGAZIG, EGYPT
Keywords: EZH2, Endothelin-1, CD34, Immunohistochemistry, Uterine cervical cancer

Objective: Cervical cancer has an increasing incidence in developing countries with a predominance of squamous cell carcinoma. In this work, we aimed to analyze the role of EZH2, Endothelin-1, and CD34 as indicators of the aggressiveness in cervical squamous cell carcinoma.

Material and Method: Immunohistochemical expression of EZH2, Endothelin-1, and CD34 was studied in 54 paraffin-embedded tissue specimens of cervical squamous cell carcinoma. Their correlation to the clinicopathologic features and the potential angiogenic role were analyzed.

Results: High EZH2 expression was noted in 78% of cervical squamous cell carcinoma with a significant relation with tumor grade, FIGO stage and lymph node metastasis (p=<0.001, p=0.007, p=0.03 respectively). Endothelin-1 overexpression was detected in 63% of the studied cases with a significant association with tumor size, FIGO stage and lymph node metastasis (p=0.009, p=0.002, p=0.02 respectively). High CD34 expression (MVD) was noted in 56% of the cases and associated with the tumor size, FIGO stage and lymph node metastasis (p<0.001, p<0.001, p=0.04 respectively). The three markers were significantly associated (p<0.05).

Conclusion: EZH2, ET-1, and CD34 may act as biomarkers of aggressive cervical squamous cell carcinoma. They may contribute to the signaling pathway of angiogenesis. Therefore, they could potentially be used in targeted therapy.

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