GRB2 and hepatocellular carcinoma: As shown in Figure 6, KPNA2 (R = 0.7, p < 0.001; Figure 6J) and GRB2 (R = 0.32, p < 0.001; Figure 6K) were shown to be significantly positively correlated with MKI67 expression, indicating their associations with HCC proliferation.