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. 2020 Jan 8;11:111. doi: 10.1038/s41467-019-13850-7

Fig. 4. Expanding tuft cells orchestrate increased secretion of acetylcholine.

Fig. 4

a, b Scopolamine-treated (7 days) ChAT-BAC-eGFP mice showed expansion of ChAT-eGFP-/DCLK1-positive cells (n = 5 sham mice, Mean = 1.11, SEM = 0.125; n = 4 ChAT-BAC-eGFP scopolamine-treated mice, Mean = 3.775, SEM = 0.184; unpaired t test, two-tailed, t = 12.39, df = 7), and prominent cholinergic fibers (arrowhead); bar graphs = 50 µm. c Acetylcholine increases following epithelial M3R ablation (ELISA, whole small intestinal tissues; n = 4 WT mice, Mean = 1.14, SEM = 0.2; n = 5 Vil-Cre × M3R fl/fl −/− mice, Mean = 1.958, SEM = 0.143; unpaired t test, two-tailed, t = 3.425, df = 7). d Immunostainings of Vil-Cre × M3R fl/fl × ChAT fl/fl mice for DCLK1 (n = 5 WT mice, Mean = 0.77, SEM = 0.080; n = 6 Vil-Cre × M3R fl/fl −/− mice, Mean = 4.517, SEM = 0.377; n = 4 Vil-Cre × M3R fl/fl −/− × ChAT fl/fl −/− mice, Mean = 6.763, SEM = 0.844; ordinary one-way ANOVA, F = 38.95, df (total) = 14), bar graphs = 100 µm. e Acetylcholine increases in Vil-Cre × M3R fl/fl × ChAT fl/fl mice (n = 4 WT mice, Mean = 1.14, SEM = 0.2; n = 5 Vil-Cre × M3R fl/fl −/− mice, Mean = 1.958, SEM = 0.143; n = 5 Vil-Cre × M3R fl/fl −/− × ChAT fl/fl −/− mice, Mean = 3.07, SEM = 0.142; ordinary one-way ANOVA, F = 36.12, df (total) = 13). Source data are provided as a Source Data file. *p < 0.05, ***p < 0.005, ****p < 0.001.