LILRB1 and neoplasm: Tumor cells overexpress anti‐phagocytic ligands CD47, PD‐L1 MHC‐I, and CD24, and can interact with their corresponding receptors SIRPα, PD‐1, LILRB1, and Siglec‐10 on the macrophages and send “don't eat me” signals to evade phagocytic clearance by macrophages.