DPP4 and uveitis: Notably, the antidiabetic DPP4 inhibitor saxagliptin (21), the DNA methylation inhibitor zebularine [used for the treatment of CD4+ T cells mediated uveitis in a murine model (22)], the smoothened receptor antagonist erismodegib [inhibitor of the sonic hedgehog signaling (23)] were also identified as potential therapeutic compounds.