Cytotoxicity of [125
I]SGMIB-MNT. Clonogenic survival of (a) A431 human epidermoid carcinoma cells and (b) D247 MG human glioma cells after exposure for 24 h to varying activity concentrations of [125I]SGMIB-MNT and [125I]iodoBSA. The experiments were performed three separate times (A431 cells) or twice (D247 MG cells) with survival curves of the representative experiment shown on the graph. For each data point, the experiment was done in triplicate with bars representing the standard error of mean.