IGSF4 knock-down in MONO-MAC-1 after transfection. The figure shows IGSF4 expression levels after transfection with IGSF4 siRNAs measured by RT-qPCR relative to levels measured in corresponding samples transfected with nontargeting siRNA. Time points are given in hours after transfection. Shown are the means of 4 experiments. Error bars represent standard error of the mean.