Effect of MAVS overexpression on polyI:C-induced IFN-β expression.

A MAVS-expressing plasmid or an empty plasmid (mock) was transfected into A549 cells for 24 h before polyI:C transfection. The mRNA levels of MAVS (A), GAPDH (B) and IFN-β (C) were determined using quantitative RT-PCR. Data are presented as the mean ± SD of three independent experiments. *, p<0.01.