In order to further study the specific functions of PCAT7 in bone metastasis of PCa, the results of gene set enrichment analysis (GSEA) based on TCGA dataset showed significant enrichment of tumor metastasis and EMT‐related gene modules in sample group with high expression of PCAT7 (PCAT7‐H group), which indicated that PCAT7 may promote EMT and tumor metastasis (Fig. S2c). The gene discussed is PCAT7; the disease is posterior cortical atrophy.