PDCD4 and neoplasm: Finally, 12 upregulated proteins, such as AKAP12, CD82, GSK3B, EPHB2, DNMT1, PDCD4, PEBP1, CDKN1A, SFN, STAT3, GSTP1, and LIMD1, were matched with both CSC-related and tumor suppressors (Figure 4A and Table 1), and seven downregulated proteins, such as SQSTM1, SUZ12, UBE2C, EZH2, CTGF, KIAA1524, and YBX1, were matched with both CSC-related and oncoproteins (Figure 4B and Table 2).