Fig. 5: CZ enhances immunosuppressive ability of MSCs by inhibiting FOXO3 phosphorylation.

a, b Representative flow cytometry analysis of T-cell activation marker CD69 and CD25 (up) and statistical histogram of CD69 and CD25 expression on T cells (down) in different culture groups. c MTS assay of T cells proliferation in different culture groups for 4 days. d Histogram of quantitative RT-PCR of gene expression of IDO and selected cytokines and chemokines secreted by MSCs altered by different CZ and/or different kinase inhibitors or activators. *P < 0.05, **P < 0.01, ***P < 0.001, ns no significant difference.