Effects of inhibitors on epithelial cells stimulated with pathogenic bacteria. (A) HFK stimulated with S. pyogenes CS101 has mutant. (B) HOK stimulated with P. gingivalis. Lanes: 1, unstimulated; 2, stimulated with bacteria only; 3 through 7, treated for 1 h prior to bacterial stimulation with JNKI, JNKII, SB203580 (SB), PDTC, and MG132 (MG), respectively; 8, stimulated with F. nucleatum cell wall extract (FnCW) only.