TGFB1 and hepatocellular carcinoma: As results shown in Figure 3B, C, the percentage of M2 macrophages was elevated when cocultured with AIM2 knockdown HCC cells, with an elevated TGF‐β level, and the percentage of M2 macrophages was decreased significantly when cocultured with AIM2‐overexpressed HCC cells, along with a suppressed TGF‐β level (Figure 3B–D).