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. 2001 Mar;69(3):1477–1482. doi: 10.1128/IAI.69.3.1477-1482.2001

FIG. 5.

FIG. 5

TLR2, but not TLR4, confers responsiveness to P. gingivalis LPS. U87 cells transiently transfected with either human TLR2 (A) or human TLR4 (B) or untransfected U373 cells (C) were stimulated for 24 h with unpurified Rc LPS repurified Rc LPS, or repurified P. gingivalis LPS at the indicated concentrations. Supernatants were collected and assayed for IL-6 production by ELISA.