Fig. 2

a Cell growth analyses (average of five wells, four independent experiments showing similar growth curves) were performed. Primary mesothelial cells show clear differences between WT and CR−/− cells (a). A plateau (100 % confluence) is reached at ≈ 50 h in WT cells, while CR−/− cells are not yet confluent (≈60 %) at 90 h. b The MTT signal obtained at 96 h post-seeding is significantly smaller in CR−/− samples (n = 3 experiments; p < 0.005) (c) Growth curves and (d) MTT signals at 96 h post-seeding from primary lung fibroblasts are not different between genotypes