IL15 and osteoarthritis: Comparatively, glycoprotein 6 (z-score 5.48), IL-15 production (z-score 5.00), fibrosis (z-score 6.71) and epithelial-mesenchymal transition signaling (no z-score), and osteoarthritis (z-score 3.34) were identified in macrophages at 14 days (Figure 2F).