Conversely, inflammatory macrophages can modulate the proliferation and behavior of synovial FLSs.[9] Moreover, their interaction creates a cytokine network that activates an inflammatory response during synovitis.[10] Metabolically, a transition from oxidative phosphorylation to glucose transporter (GLUT)‐mediated glycolysis has been observed in synovium during synovitis. Here, SLC2A1 is linked to synovitis.