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Immunoreactivity for TLR4 and CD14 in gingival fibroblasts. The cells cultured on Lab-Tek tissue culture slide were stimulated with (A and B) or without (C and D) P. gingivalis LPS for 24 h and subsequently stained for HTA125 (anti-TLR4; A and C) or MY4 (anti-CD14; B and D). Anti-CD3 was used as a negative control (E).
