Fig. 3.
Effects of As2O3 or cAMP or both on NB4 cell proliferation.
(A) Cell viability was assessed by trypan blue dye exclusion method following the indicated treatments. Each value represented the mean ± SD of 3 independent measurements. (B) Flow cytometric analysis of cell cycle distribution by PI staining. One representative experiment among 3 independent assays was shown. (C) Western blot analysis of some cell cycle-involved proteins (E2F, p21, p27, cyclin D1, CDK4, and p53) expression during the treatments.
