Fig. 7From: CCL2-CCR2 axis recruits tumor associated macrophages to induce immune evasion through PD-1 signaling in esophageal carcinogenesisBlockade of TAMs M2-polarization via macrophage-specific PPARG deletion reduces PD-L2 expression and inhibits tumorigenesis. a Macrophage-specific gene knockout of PPARG in mouse reduces tumor growth in ESCC mouse model (n = 6). b Flow cytometry analysis shows deficiency of PPARG in macrophage suppresses M2-polarization and PD-L2 expression in TAMs and increases CD8+ CTLs in forestomach tumors (n = 6). c Schematic figure indicates esophageal carcinogenesis can be blocked by targeting TAMs infiltration via CCL2/CCR2 signaling (Target I) and M2 polarization via PPARG activation (Target II)Back to article page