Analysis of T cell subsets from eye and lymph node. For CD4+CD25+Foxp3+ cell detection, cells were first gated on CD4+ cells, and then gated on CD25+ and Foxp3+ cells. (A) Representive figures of intracellular staining of IFN-γ, IL-17 and CD25+Foxp3+ in eyes-derived CD4+T cells (left) and in lymph nodes-dvrived CD4+T cells (right) from Control and MSC-exo treated rats with EAU. (B) the percentage of CD4+IFN-γ+, CD4+IL-17+ and CD4+CD25+Foxp3+ cells in eyes. (C) the percentage of CD4+IFN-γ+, CD4+IL-17+ and CD4+CD25+Foxp3+ cells in cervical draining lymph nodes. Values are expressed as the mean ± SD of six rats (12 eyes) per group. *P < 0.05.