TLR4 and pancreatic neoplasm: TLR4 exhibited highest protein amounts in MIAPaCa-2 and SW1990 cells (next to AsPC-1 and Panc1) while BxPC-3 and primary pancreatic cancer cell lines PaCaDD135, PaCaDD159, and PaCaDD185 demonstrated only moderate TLR4 expression (Figure 3).