KDM1A and hepatocellular carcinoma: Regarding LSD1, only 15 cases (17.86%) exhibited no or weak immunopositivity, 32 cases (38.10%) exhibited moderate immunopositivity, and 37 cases (44.05%) exhibited strong immunopositivity in the tumor tissues (Figure S9F), suggesting LSD1 expression in the HCC tissues was predominantly upregulated in comparison with NATs (Figure S9G).