However, in a specific study, researchers evaluated the effect of long-term moderate-intensity static magnetic field (SMF) on osteosarcoma stem cells and found that exposure to SMF-activated NCOA4, induced ferritin autophagy, increased intracellular Fe2+ levels, and promoted the self-renewal ability of osteosarcoma stem cells (50). Here, NCOA4 is linked to osteosarcoma.