Effect of LILRB4 on survival, PARP and caspase-3 cleavage expression, and cell cycle progression. (A) Venn diagrams of DEGs of PCs within or outside the BM from 3 patients. (B) Expression of LILRB4 in PCs from BM and ME. (C) Overall survival of patients with different expressions of LILRB4. (D-E) Effect of LILRB4 overexpression and KO on the protein and messenger RNA expression of LILRB4 in NCI-H929 cells. (F) Effect of LILRB4 overexpression and KO on PARP and caspase 3 cleavage in NCI-H929 cells. (G-H) Effect of LILRB4 overexpression and KO on cell cycle progression.