Fig. 2From: Inhibitory effects of Euphorbia supina on Propionibacterium acnes-induced skin inflammation in vitro and in vivoEffect of ES on cell viability and P. acnes-induced pro-inflammatory cytokines in THP-1 cells. (a) Cell viability of ES was determined by MTT assay in THP-1 cells. THP-1 cells were treated with 0.1, 1 and 10 μg/ml of ES for 24 hrs. ELISA results demonstrate that ES suppressed the secretion of (b) IL-1β, (c) IL-8 and (d) TNF-α in P. acnes-stimulated THP-1 cells. Values represent mean ± S.E.M. Data were analyzed by Tukey post hoc test ( * p < 0.05 versus control and ** p < 0.05 versus P.acnes alone)Back to article page