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The prognostic impact of PBRM1 immunohistochemical expression and its association with CD3+ and CD8+ immune cells in patients with renal cell carcinoma: A retrospective study

Research Authors
Amira Emad Elwy, Mahmoud Ismail Nassar, Shimaa Hassan Shaban, Tarek Mohamed Elsaba
Research Department
Research Date
Research Year
2025
Research Journal
Pathology-Research and Practice
Research Publisher
Urban & Fischer
Research Vol
268
Research_Pages
155863
Research Abstract

The objective of this study is to determine the prognostic implications of PBRM1 immunohistochemical (IHC) expression in renal cell carcinoma (RCC) patients. Additionally, the objective is extended to evaluate the association between PBRM1 expression and CD3 + and CD8 + immune infiltrates. This study retrospectively reviewed 115 RCC patients who underwent nephrectomy. Immunohistochemistry was performed for PBRM1, CD3, and CD8. The associations between the studied parameters and variable clinicopathological characteristics, including survival, were analyzed statistically. A significant association was observed between the low expression of PBRM1 (< 50 %) and aggressive clinicopathologic features (p value around 0.001), as well as a significantly worse 3-year overall survival (OS) and disease-free survival (DFS) (p value around 0.001). PBRM1 low expression was considered an …