PDCD1 and Vogt-Koyanagi-Harada disease: Additionally, the expression of the Tem marker (CD45RO), CTL markers (GZMB and CD57), and the Tex marker (CD279) in CD8+ TCs increased in VKH disease (Fig. 3H–J), although no significant changes were detected in the percentage of the above CD8+ TC subsets (Fig. S6H–S6J).