Figure 1.
Effects of CC-5013, rapamycin, and their combination on proliferation of MM cell lines and PBMCs. (A) Time- and dose-dependent inhibition of proliferation in sensitive MM cell lines (MM1.S, OPM2, SB645), demonstrated by measuring thymidine [3H-TdR] uptake during the last 8 hours of 48-hour cultures, in the presence of CC-5013 (μM), rapamycin (nM), or both in fixed-dose treatment. (B) Time- and dose-dependent inhibition of proliferation demonstrated by MTT in MM1.S cells. (C) Inhibition of DNA synthesis as measured by 3H-TdR uptake in resistant MM cell lines treated with CC-5013 and rapamycin. (D) Lack of toxicity of combined therapy on PBMCs, demonstrated by MTT assay. Error bars indicate one standard deviation.