STAT3 and uveitis: To add to the complexity, the pro-inflammatory factor STAT3, controlled indirectly by miR-146a, miR-182-5p, and directly by miR-125a, may also act as a regulator of miR-155, creating an axis promoting the expansion of pathogenic Th17 cells in experimental uveitis (Escobar et al. 2013; Hsu et al. 2015; Hu et al. 2022).