Figure 2. Multivariate analysis of small molecule kinase inhibitors on induced cytokine secretion.
(a) Principal component analysis of cytokine profiles differentiate secretion profiles for basal conditions (open data points) and TNFα–, IL–1α, or Poly(I:C)–activated SFs (colored data points). Solid red arrows illustrates activation by Poly(I:C)– and dotted arrow depicts the normalizing effect of lestaurtinib. (b) Ability of kinase inhibitors to prevent SF activation and restore the cytokine secretion profile to the pre–stimulus state. A value of 0 indicates no effect of the inhibitor and a value of 1 corresponds to complete normalization.