Effect of Gloriosa superba and Catharanthus roseus Extracts on IFN-γ-Induced Keratin 17 Expression in HaCaT Human Keratinocytes

Figure 3

The effect of G. superba and C. roseus extracts on apoptosis and cell cycle of IFN-γ-treated HaCaT cells. The final concentration of IFN-γ was 1 ng/mL. The final concentrations of G. superba extract were 0.01, 0.1, 1, and 10 μg/mL, and the final concentrations of C. roseus extract were 10, 25, 50, and 100 μg/mL. Quantitative determination based on PI staining was carried out using flow cytometer. The results show cell cycle histogram (a) and the percentage of cell numbers with mean ± SD (b).

(a) Cell cycle histogram

(b) The percentage of cell numbers