Journal: Veterinary sciences
Article Title: IFN-γ/TNF-α Synergism Induces Pro-Inflammatory Cytokine and Chemokine Production by In Vitro Canine Keratinocytes.
doi: 10.3390/vetsci12010055
Figure Lengend Snippet: Figure 1. The effects of Th1 or Th2 cytokine stimulation on the production of IL-6, CXCL8, and CCL2 from canine progenitor epidermal keratinocytes (CPEKs). (A) CPEKs stimulated with an IFN-γ/TNF- α mixture showed increased IL-6 concentrations compared to vehicle (** p < 0.01, unpaired t-test). (B) Supernatants from CPEKs stimulated with TNF-α (** p < 0.01, Mann–Whitney U test) and the mixture of IFN-γ/TNF-α (** p < 0.01, unpaired t-test) showed significantly increased CXCL8 concen- trations. CXCL8 levels were more elevated in cells stimulated by TNF-α than in those stimulated by the mixture of IFN-γ/TNF-α (+ p < 0.01, Mann–Whitney U test). The supernatants from CPEKs incubated with IFN-γ showed decreased CXCL8 concentrations (** p < 0.01, unpaired t-test). (C) The supernatants from CPEKs incubated with IFN-γ, TNF-α, and the IFN-γ/TNF-α mixture exhibited significantly increased CCL2 concentrations compared to vehicle (** p < 0.01, Mann–Whitney U test). Among them, those from CPEKs incubated with the IFN-γ/TNF-α mixture showed significantly increased CCL2 concentrations compared to those incubated with either IFN-γ or TNF-α (+ p < 0.01 TNF-α versus the IFN-γ/TNF-α mixture, ¶ p < 0.05, IFN-γ versus the IFN-γ/TNF-α mixture, Mann– Whitney U test). In addition, the supernatants of CPEKs incubated with IFN-γ showed significantly increased CCL2 concentrations compared to those from CPEKs incubated with TNF-α (# p < 0.01, unpaired t-test). Data represent the mean of five independent experiments ± standard deviation.
Article Snippet: Canine IL-6, IL-10, IL-1ß, IL-12, CXCL8, and CCL2 DuoSet ELISA kits (R&D systems) were used according to the manufacturer’s instructions.
Techniques: MANN-WHITNEY, Incubation, Standard Deviation