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Updated: Feb 14, 2026

Author Spotlight: Investigating Immune Cell Dynamics in the Tumor Microenvironment — Challenges and Innovations in Cancer Prognosis
Published on: April 12, 2024
Remodeling and spacing factor 1 overexpression is associated with poor prognosis in renal cell carcinoma
Xiuwei Zhang1,2, Dongwei Xue3, Fengxia Hao1
1Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences of China Medical University, Shenyang, Liaoning 110001, P.R. China.
Abstract:
The present study aimed to assess the expression and prognostic significance of remodeling and spacing factor 1 (RSF1; HBXAP) in renal cell carcinoma (RCC). RSF1 expression was analyzed using immunohistochemistry on tissue samples from a consecutive series of 137 patients with RCC who underwent tumor resection between November 2000 and March 2004. The associations between RSF1 expression, clinicopathological factors and patient survival were investigated. Immunohistochemistry revealed that RSF1 was highly expressed in 43.1% (59/137) of the RCC samples. RSF1 expression levels were associated with the T stage of the Tumor-Node-Metastasis grading system. Kaplan-Meier survival analysis indicated that high RSF1 expression in RCC was significantly associated with a poor prognosis. Multivariate analysis revealed that RSF1 expression is an independent prognostic parameter for the duration of overall survival of patients with RCC. The results demonstrated that a high expression level of RSF1 in RCC is associated with advanced tumor stages and a poor prognosis. To the best of our knowledge, the present study provides novel evidence of the biological significance of RSF1 expression in RCC.
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