ETS2 is a transcription factor that binds the GGAA/T core motif in gene promoters to regulate transcription through RNA polymerase II 1. As a founding member of the ETS family, ETS2 functions as a master regulator of macrophage-driven inflammation, with genetic variants on chromosome 21 causally linked to inflammatory bowel disease, ankylosing spondylitis, and primary sclerosing cholangitis 2. ETS2 overexpression in macrophages upregulates multiple inflammatory cytokines including TNF and IL-23, and genes regulated by ETS2 are enriched for inflammatory bowel disease GWAS hits 2. Beyond inflammation, ETS2 is phosphorylated by Erk1/2 kinase and cooperates with NFAT transcription factor to drive cardiac hypertrophy by activating hypertrophic marker genes and microRNA-223 3. In antiviral immunity, ETS2 is phosphorylated by TAOK1 kinase downstream of oxaloacetate sensing and promotes type I interferon responses critical for influenza defense 4. ETS2 demonstrates context-dependent roles in cancer, acting as either tumor suppressor or oncogene 1, and cooperates with mutant p53 to promote transformation 5. In glioblastoma, the ID2-ETS2 axis regulates pro-tumoral microglia phenotype acquisition 6. ETS2 represents a promising therapeutic target for inflammatory diseases, though direct inhibition presents challenges 7.