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Toll-like receptor 2 is involved in NTHi-induced NF-κB activation. Cotransfection of HeLa cells with a dominant-negative mutant of TLR2 inhibits NTHi-induced NF-κB activation, whereas overexpression of a wild-type TLR2 enhances NF-κB activation. Values are the means ± SD; n = 3.
