APOA1 and neoplasm: Figure 5A summarizes, which proteins in our dataset are potentially regulated by GCR-alpha. Interestingly, despite the limited overlap in terms of differentially expressed proteins (Figure 2) and significantly enriched biological processes (Figure 4), two GCR-alpha target proteins, ApoA-1 and Serotransferrin, were present in the signatures of both the serum and the tumor proteome (Figure 5A).