Abstract
Purpose
CD44 expression in both the early and metastatic phases of many epithelial and non-epithelial cancers is strongly prognostic. The objective of the study is to evaluate whether there is any relationship between the expression of CDD44v6 and endometrial cancer (EC) staging and prognosis.
Methods
This retrospective study included 60 EC patients for whom surgical staging was performed between 2000 and 2006. Twenty-eight randomly selected patients with normal endometria served as the control group. We immunohistochemically evaluated membranous and cytoplasmic CD44v6 staining in tissue paraffin blocks. The results were graded as positive or negative.
Results
Membranous staining in both advanced and early stage EC patients was significantly higher than that in the control group (p = 0.002). The extent of either membranous or cytoplasmic staining in both advanced- and early stage patients did not differ significantly by age, tumor grade, stage, extent of myometrial invasion, lymph node involvement, cytology, adnexal involvement, or omental spreading. In advanced-stage patients, neither papillary serous not clear cell cancers exhibited cytoplasmic staining.
Conclusions
CD44v6 membranous staining can be useful for differentiating malignant from benign endometrial tissue. However, staining is not associated with EC staging or prognosis.
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Author contributions
HKC: protocol and project development, data collection, data analysis, and manuscript writing. MG: project development, data management, data analysis, manuscript writing, and editing. FO: project development and manuscript editing. DK: protocol development, data management, and data analysis. AE: data management and data analysis.
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All procedures performed in human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The project was approved by the Ethical Committee of the Ankara University (Verdict No. 21/2006, June 2006).
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Informed consent was obtained from all individual participants included in the study.
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Kansu-Celik, H., Gungor, M., Ortac, F. et al. Expression of CD44 variant 6 and its prognostic value in benign and malignant endometrial tissue. Arch Gynecol Obstet 296, 313–318 (2017). https://doi.org/10.1007/s00404-017-4430-9
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DOI: https://doi.org/10.1007/s00404-017-4430-9