TLR2 and TLR4 gene expression in atherosclerosis plaques after gene knockdown with siRNA-lentivirus. (A) RT-PCR quantification of TLR2 mRNA expression in the control, mock and three gene interference subgroups of mice; (B) RT-PCR quantification of TLR4 mRNA expression in the control, mock and three gene interference subgroups of mice (n= 12 per group). #P < 0.05 versus control, ⋆P < 0.05 versus mock, ▴P < 0.05 versus TLR2i, ⋆P < 0.05 versus TLR4i. (C) Western blots analysis of TLR2 and TLR4 protein expression in the control, mock and three gene interference subgroups of mice.