PLCG2 and neoplasm: The CCK-8 assay showed that the proliferation of the PLCG2 siRNA group was markedly inhibited (Fig. 4K), and the level of proliferating cell nuclear antigen (PCNA) was reduced in the PLCG2 siRNA group (Fig. 4L), which is a tumor cell proliferation factor related to the proliferation ability of cells.