Wu CY, Huo JP, Zhang XK, Zhang YJ, Hu WM, Yang P, Lu JB, Zhang ZL, Cao Y. Loss of CD15 expression in clear cell renal cell carcinoma is correlated with worse prognosis in Chinese patients.
Jpn J Clin Oncol 2018;
47:1182-1188. [PMID:
29036563 DOI:
10.1093/jjco/hyx139]
[Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 09/12/2017] [Indexed: 01/01/2023] Open
Abstract
Purpose
To explore the role of CD15 expression in the prognosis of clear cell renal cell carcinoma (ccRCC) in Chinese patients.
Methods
The study included 301 patients who had undergone surgery for localized ccRCC. All paraffin-embedded tumor sections were collected to make a set of tissue microarrays. CD15 expression was assessed by immunohistochemistry. The relationship between CD15 expression and survival parameters, clinicopathology features was assessed. Kaplan-Meier and Cox proportional hazards model were utilized to determine the correlation between CD15 expression and overall survival (OS).
Results
The median follow-up time was 54.6 months (range, 3-121 months). The positive rate of CD15 expression was 81.7% (246/301). The cut-off value of CD15 expression was defined as the maximum for Youden index by plotting the receiver operating characteristic curve for survival status. As the threshold was 0.5, all cases were divided into two groups: positive expression group and negative expression group. In correlation analysis, loss of CD15 expression was correlated with female gender, higher Fuhrman nuclear grade, with sarcomatoid differentiation, with necrosis, and with vascular invasion. Kaplan-Meier analysis indicated that the OS time of patients with loss of CD15 expression was shorter than that of patients with positive CD15 expression (P = 0.013).
Conclusion
CD15 is a significant prognostic factor in clear cell renal cell carcinoma.
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