Fig. 2.

Propionibacterium acnes induces activation of multiple MAPK pathways in cultured human keratinocytes. a Western blots show time-dependent induction of phospho-p38 (p-p38), phospho-ERK1/2 (p-ERK1/2) and phospho-JNK1/2 (p-JNK1/2). b–d The density of each phosphorylated MAPK band was normalized to its loading control, and then compared to time 0. MAPK mitogen-activated protein kinase, ERK extracellular signal-related kinases, JNK c-Jun N-terminal kinases