The role of EZH2 and ARID1A in the diagnosis of flat urothelial lesions with atypia

The role of EZH2 and ARID1A in the diagnosis of flat urothelial lesions with atypia

Автор: Sameh Reham, Mostafa Naglaa Mostafa, Embaby Ahmed, Raouf Samar Abdel, Abdelwahab Khaled

Журнал: Сибирский онкологический журнал @siboncoj

Рубрика: Лабораторные и экспериментальные исследования

Статья в выпуске: 5 т.20, 2021 года.

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Background. Diagnosis of urothelial carcinoma in situ is of great importance because it has prognostic and therapeutic value. We aim to determine the utility of EZH2 and ARiD1A as a new tool in the diagnosis of carcinoma in situ. Material and Methods. This retrospective cross-sectional study included Twenty-four specimens of flat urothelial lesions, twenty specimens of CiS, and 10 of normal adjacent urothelium that was taken by cystoscopic resection biopsy procedure. immunohistochemical expression of EZH2 and ARiD1A. were evaluated in all studied cases. Results. All normal urothelium specimens showed high nuclear staining for ARiD1A and negative nuclear staining for EZH2. High EZH2 expression was observed in 80 % of CiS specimens compared to 20 % of flat urothelial lesions with atypia (p=0.001 ), while high ARiD1A expression was observed in 70.8 % of flat urothelial lesions with atypia compared to 25 % of CiS specimens (p=0.001). EZH2 was more accurate and specific in the diagnosis of carcinoma in situ. Conclusion. EZH2 and ARiD1A are promising diagnostic markers for urothelial CiS. EZH2 is more accurate and specific than ARiD1A in the diagnosis of carcinoma in situ versus other flat urothelial lesions.

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Dysplasia, carcinoma in situ, reactive atypia, immunohistochemistry

Короткий адрес: https://sciup.org/140261336

IDR: 140261336   |   DOI: 10.21294/18144861-2021-20-5-49-57

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