Figure 5. Effect of stigmasterol on CD4+ T cell differentiation. (A) Expression levels of IL-17A in CD4+ T cell supernatants. (B) Expression level of TGF-β1 and IL-17A gene in CD4+ T cells. (C) Differential expression of TGF-β1, p-Smad2 and IL-17A proteins in CD4+ T cells. p < 0.05 indicated statistically significant differences.