Figure 1.

TLR independent NFκB activation by B. pseudomallei requires T3SS3. A) HEK293T cells were transfected with pNFκB-SEAP for 24 hr. The transfected cells were infected with wildtype KHW and mutants at MOI of 10:1 for 6 hr. Supernatants were collected for SEAP assay. B) HEK293T cells were infected with respective strains for 6 hr. Cells were lysed and plated for intracellular bacterial count. C) HEK293T cells were transfected with pNFκB-SEAP for 24 hr. The transfected cells were infected with wildtype KHW and mutants at indicated MOI for 6 hr. Supernatants were collected for SEAP assay. D) HEK293T cells were infected with respective strains for 6 hr. Supernatants were collected for lactate dehydrogenase (LDH) assay. Asterisks * and ** indicate significant differences of p < 0.05 and p < 0.01 between B. pseudomallei wildtype and mutant strains respectively.