Prognostic significance of ST3GAL-1 expression in patients with clear cell renal cell carcinoma

BMC Cancer

Research Article

Jiejie Xu¹  Yu Xia²  Qilai Long²  Li Liu²  Qi Bai²  Jianming Guo²  Jiajun Wang² 

[1] Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, 200032, Shanghai, China;Department of Urology, Zhongshan Hospital, Fudan University, 200032, Shanghai, China;

关键词: Clear cell renal cell carcinoma;    β-Galactoside α-2,3-Sialyltransferase 1;    Prognosis;    Nomogram;    Overall survival;    Disease free survival;   

DOI  :  10.1186/s12885-015-1906-5

 received in 2015-08-26, accepted in 2015-11-03,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundAberrant sialylated carbohydrate synthesis is frequently noted in various cancers. Sialyltransferase ST3GAL-1, which adds a sialic acid in an α-2,3 linkage to Gal β1,3 GalNAc, preforms an important role in modulating cellular behaviors. However, little is known about prognostic significance of ST3GAL-1 in clear cell renal cell carcinoma (ccRCC). In this study, we aimed to investigate the prognostic significance of sialyltransferase ST3GAL-1 and its correlation with clinical outcomes in patients with ccRCC.MethodsA total of 286 patients who underwent nephrectomy between 2005 and 2007 in a single academic center were recruited. Immunohistochemical staining was performed on tissue microarrays to assess the expression level. Kaplan-Meier method and Cox proportional hazard model were applied to assess the prognostic value of ST3GAL-1. Nomograms were generated as prediction model for overall survival and disease free survival at 5 and 8 years after nephrectomy.ResultsThe present results show high expression of ST3GAL-1 is associated with reduced overall survival (p = 0.013) and disease free survival (p = 0.004). In multivariate cox analyses, ST3GAL-1 was defined as an independent prognostic factor for overall survival (p = 0.006) and disease free survival (p = 0.001). After incorporation into the University of California Integrated Staging System (UISS) intermediate/high risk group for non-metastatic ccRCC, ST3GAL-1 could further distinguish patient with dismal prognosis (p = 0.015 and 0.002 for OS and DFS respectively). The nomograms revealed better predictive accuracy in predicting 5- and 8- year overall survival and disease free survival than the TNM stage alone.ConclusionsST3GAL-1 is an independent adverse prognostic factor for recurrence and survival of patients with ccRCC.

【 授权许可】

CC BY   
© Bai et al. 2015