(A) HepG2 cells were treated with siRNAs for 48 hours and then incubated in reduced serum media (RSM) in the (B-D) absence or (E-G) presence of IL-6 for 24 hours. Effects on fibrinogen (B, E) gene expression, (C, F) protein production, and (D, G) cell viability were assessed by immunoblotting, RT-qPCR, and cell counts, respectively. All data were normalized to treatment with control siRNA (siNC), N=3–12 for each siRNA, bars indicate mean + standard error of the mean, *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001