Fig. 8. Effects of SB203580, U0126 and anisomycin on growth potential. Growth curves of RD cells untreated (C) or pre-treated for 1 hour with SB203580 (SB) and (A) treated with anisomycin (AN), (B) treated with TPA or (C) with U0126 for 2, 4 and 6 days. Each value represents the mean±s.e.m. of three samples. (D) Immunoblots of nuclear extracts from RD cells, either untreated (C) or treated with TPA, anisomycin and U0126 using the anti-PCNA antibody. The data shown are representative of three independent experiments.