According to ChIPBase v2.0 (http://rna.sysu.edu.cn/chipbase/) coexpression analysis and Pearson’s correlation coefficient analysis, there was a positive correlation between CSF1 expression and GAPLINC expression in 603 RCC samples (r=0.3171, P<0.001) (Figure 3D). This evidence concerns the gene CSF1 and renal cell carcinoma.