TLR4 and cancer: In BxPC-3 and MIAPaCa-2 cancer cells TLR2 and -9 expression clearly dominated (BxPC-3: TLR2 42.9%, TLR4 2.9%, and TLR9 43.8%; MIAPaCa-2 TLR2: 40.2%, TLR4 8.5%, and TLR9 88.5%) (Figure 5, top and center).