Role of MAPK in cytotoxicity of V. Parahaemolyticus. Caco-2 cells were co-incubated with V. parahaemolyticus WT RIMD2210633 for 3 h (MDC staining) or 4 h (LDH assay), either alone or in combination with one of the MAPK inhibitors, SB203580 (5 μM), SP600125 (15 μM) or PD98059 (40 μM). A. LDH assays were performed to quantify cell lysis. Results indicate mean ± SEM of three independent experiments. *P < 0.05; **P < 0.01; ***P < 0.001 vs medium. B. MDC staining was visualised by fluorescent microscopy.