Fig. 2From: Complement C4 induces regulatory T cells differentiation through dendritic cell in systemic lupus erythematosusThe effect of complement C4 on differentiation of T lymphocytes. a Flow Cytometer was used to determine the CD4+CD25+FOXP3+Treg percentage. b The statistical result of Flow Cytometer was shown. c Real-time PCR was used to quantify Foxp3 relative mRNA expression. d TGFβ concentration of cells was determined by ELISA kitBack to article page