To validate this association, we analyzed PELI1 expression across 12 HCCDB datasets (HCCDB 1, 3, 4, 6, 7, 11, 12, 13, 15, 16, 17, and 18), which revealed consistent upregulation of PELI1 in HCC tissues relative to adjacent non-tumor tissues (Figure 4A). The gene discussed is PELI1; the disease is neoplasm.