PLCH1 and neoplasm: PLCH1 expression showed a strong positive correlation with EGFR-related pathways, including KEGG_TGFA_EGFR_PLCG_PKC_SIGNALING_PATHWAY (Figure 4B, R = 0.35, P < 2.22e-16) and KEGG_EGF_EGFR_PLCG_ERK_SIGNALING_PATHWAY (Figure 4C, R = 0.27, P < 2.22e-16), which are crucial for tumor cell proliferation and migration.