RBP4 and colorectal cancer: Analysis of colorectal cancer-free survival data present in the Cancer Genome Atlas (TCGA) available through cBioPortal (Cerami et al., 2012, Gao et al., 2013) showed a survival disadvantage when STRA6 or RBP4 was highly expressed (hazard ratio = 1.929, p < 0.05) (Figure 1A).