The FCM results showed that the number of splenic CD4+ IL-17A+ T cells and CD4+ IFN-γ+ T cells were notably higher in the AIH model mice while the number of Th17 (Figures 3(c) and 3(d)) and Th1 cells (Figures 3(e) and 3(f)) were markedly lower in the UC-MSC-treated mice. This evidence concerns the gene IL17A and autoimmune hepatitis.