Fig. 1.

TGF-β₁ augments growth of the SCC clone. a Proliferation of the untransfected control SCC clone was assessed after 24 h of culture with different TGF-β₁ concentrations by [³H]-thymidine uptake. Results shown are representative of three experiments (n=6 in each experiment). b In vitro proliferation of untransfected (UCo), vector transfected (VCo) and the two TGF-β₁ transfected cell clones during 24 h culture assessed by [³H]-thymidine uptake. Six independent experiments normalised to the VCo to enable them to be pooled (n=6 in each experiment). Mean + SE shown. Statistical analysis by ANOVA compared to the cell clone without added TGF-β₁, or to the VCo control