PCOLCE2 and neoplasm: The IHC staining images were analyzed to compare the protein expression level between normal and tumor tissues (images available from https://v22.proteinatlas.org), the results showed that the expression levels of SEZ6L2, TRIP6, PCOLCE2, and DPP7 in tumor tissues were higher than in normal tissues, while the expression levels of CXXC5 was lower than in normal tissues (Figure 10).