Fig. 4
From: Targeting macrophages in hematological malignancies: recent advances and future directions
Main “Don’t Eat Me” signals discovered so far: The CD47/SIRPα axis, PD-1/PD-L1 axis, MHC-I/LILRB1 axis, and CD24/SIGLEC-10 axis all play significant roles in inhibiting cancer cell engulfment, and disruption of these interactions can enhance the phagocytosis of macrophages