CD47 and cancer: Conversely, cancer cells, such as cluster of differentiation (CD) 47, CD24, programmed death ligand (PDL)1, major histocompatibility complex‐I, stanniocalcin‐1, and disialoganglioside GD2 cells, evade immune clearance with the help of antiphagocytic molecules, termed “don't eat me” signals.[7, 8, 9, 10, 11, 12] Most phagocytosis‐related ICB therapies focus on blocking “don't eat me” signals, such as those elicited by CD47 and PDL1 cells.