Figure 3From: Effects of pro-inflammatory cytokines on expression of kynurenine pathway enzymes in human dermal fibroblastsOverview of the changes in levels of transcripts encoding enzymes in the kynurenine pathway in human skin-derived fibroblasts following treatment with IFN-γ (white), TNF-α (gray) or the combination of these two cytokines (black) during 48 hrs. Squares indicate no significant change whereas arrows indicate significant up- or down-regulation.Back to article page