Interestingly, from unbiased marker gene identification Tcrg-C1 was identified as a marker gene for the Th17 cell cluster (Fig. 2C), and immunostaining confirmed the presence of intraretinal γδ T cells (Fig. 2D), suggesting that γδ T cells are present and contribute to IL-17 production in the retina during uveitis. Here, IL17A is linked to uveitis.