Cycloheximide or puromycin can substitute for PDGF in inducing cellular DNA synthesis in quiescent 3T3 cells
1986
Abstract A brief exposure of quiescent (G 0 ) Swiss 3T3 mouse fibroblasts to inhibitors of protein synthesis can replace platelet-derived growth factor in the stimulation of cellular DNA synthesis. When 3T3 cells, after a 6 hr exposure to either cycloheximide or puromycin, are incubated with platelet-poor plasma, a significant percentage of cells enters DNA synthesis. Either inhibition of protein synthesis, or platelet poor plasma by themselves are totally ineffective. A possible mechanism by which inhibitors of protein synthesis may initiate cell cycle progression is through the activation of the c-myc gene.
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