Colitis and colon macroscopic score data were directly supported by histological colonic examination which showed that apoptotic WJ-MSCiCasp9+/Luc+ significantly reduced TNBS-induced transmural inflammation, depletion of mucin-producing goblet cells, epithelial ulceration, infiltration of inflammatory cells in the lamina propria, and focal loss of crypts (Fig. 3F). The gene discussed is MUC5AC; the disease is colitis.