Expression profiles of differentially expressed AAMφ-associated gene sets. The expression profiles of gene sets positively and negatively associated with alternative activation (AAMφ-up and AAMφ-down). All statistically significant genes (P < .01) between WT-NeMφ and WT-ThioMφ, and WT-NeMφ and IL4Rα^−/−-NeMφ, were clustered using hierarchical agglomerative clustering. Each gene within an expression cluster is plotted in blue, and the mean expression for all genes within each cluster is overlaid in black. The figure in each panel represents the total number of genes in that cluster.