TGFB1 and hepatocellular carcinoma: The genes in clusters 5 and 12 were enriched in functions related to the following KEGG pathways: cell cycle, NF‐κB, hepatocellular carcinoma, MAPK, pathways in cancer, VEGF, Rap1, TNF, TGF‐β, Wnt, AMPK, mTOR, PI3K‐Akt, HIF, and Hippo signaling (Figure 2B and Figure S2A, Supporting Information).