Knockdown of RP105 increases the expression levels of TLR2 and TLR4 in MIRI. Protein expression levels of serum (A) TLR2 and (B) TLR4 in each group. (C) Western blotting for the expression levels of TLR2 and TLR4 in each group. The interactions of MD2 with TLR2 and TLR4 following overexpression or knockdown of RP105 were investigated. Expression level of (D) TNF-α and (E) IL-6 in each group. (F) Western blotting bands of TNF-α and IL-6. *P<0.05, **P<0.01. Ad, adenovirus; RP105, radioprotective 105 kDa protein; siRNA, small interfering RNA; EGFP, enhanced green fluorescent protein; sham, control sham group; I/R, ischemic and reperfusion; Ad-R, Ad-RP105 group; Ad-R-siRNA, Ad-RP105-siRNA group; Ad-G-siRNA, Ad-EGFP-siRNA group; TLR2/4, Toll-like receptor 2/4; TNF-α, tumor necrosis factor; IL-6, interleukin 6; MD2, myeloid differentiation protein 2; IP, immunoprecipitation.