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Susceptibility of NCI60 human cancer cell lines to treatment with IGFBP7 or a MEK inhibitor. A, Cell lines were treated with 10 μg rIGFBP7 for 24 hrs and analyzed for apoptosis by annexin V staining. B, Cell lines were treated with U0126 (10 μM) for 24 hrs and analyzed for proliferation by trypan blue exclusion. All experiments were performed in triplicate. Error bars represent SEM.
