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Wilms' tumor 1 protein expression in endometrial adenocarcinoma and endometrial intra-epithelial neoplasia



Wilms' tumor 1 protein expression in endometrial adenocarcinoma and endometrial intra-epithelial neoplasia



Journal of Obstetrics and Gynaecology Research 42(7): 870-875



To investigate the expression of Wilms' tumor 1 (WT1) protein in endometrial adenocarcinoma (EC) and endometrial intra-epithelial neoplasia (EIN). WT1 protein expression was determined on immunohistochemistry in 30 EC patients and in 20 EIN patients. WT1 protein expression in proliferative (n = 7), secretory (n = 9) and atrophic endometrium (n = 9) and benign endometrial polyps (n = 28) was used as the control group. Cellular and vascular WT1 staining was scored semiquantitatively. Cellular WT1 staining was 67% and vascular positivity was 73% in the EC group. In the EIN group the cellular staining was 100% and vascular staining was 85%. Although all EIN samples were positive for cellular WT1 staining, median cellular staining score was similar to that of EC (median, 2; range, 1-3; IQR, 1.75 vs 2, 0-3, 0.75, respectively). Increasing EC grade and stage were not associated with cellular or vascular WT1 staining score. WT1 is expressed in EIN.

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Accession: 059273641

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PMID: 27062662

DOI: 10.1111/jog.12981


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