Journal: Nature Communications
Article Title: Pharmacological and physiological activation of TGR5 in the NTS lowers food intake by enhancing leptin-STAT3 signaling
doi: 10.1038/s41467-025-60331-1
Figure Lengend Snippet: a Cumulative food intake of NTS CMC (n = 15; data replotted from Fig. ), leptin (n = 10; data replotted from Fig. ), CCDC (n = 10; data replotted from Fig. ) or CCDC+leptin (n = 11) HF rats 24 h after food was given back. b Representative western blot images of p-STAT3, t-STAT3, and GAPDH protein levels in NTS CCDC 5 min acute infusion, followed by a 3 h wait, then NTS CMC or leptin 5 min acute infusion, and a subsequent 30 min waiting time in HF rats. c Representative images (scale bar: 100 μm) of immunohistological staining for p-STAT3 with DAPI (top) and cFOS (bottom) in NTS CCDC 5 min acute infusion, followed by a 3 h wait, then NTS CMC or leptin 5 min acute infusion, and a subsequent 30 min waiting time in HF rats. d Relative NTS Tgr5 mRNA expression of NTS shMM (n = 6) or shTgr5 (n = 6) rats. e Relative NTS PKA activity of NTS CMC shMM (n = 6), CCDC shMM (n = 6), CMC shTgr5 (n = 6), or CCDC shTgr5 (n = 6) HF rats, measured 3 h after 5 min acute infusions. f Cumulative food intake of NTS CMC shMM (n = 5), CCDC+leptin shMM (n = 10), CMC shTgr5 (n = 5), or CCDC+leptin shTgr5 (n = 8) HF rats 24 h after food was given back. g Relative NTS LepRb mRNA expression of NTS shMM (n = 6) or shLepR (n = 6) rats. h Cumulative food intake of NTS CMC shMM (n = 7), leptin shMM (n = 7), CMC shLepR (n = 7), leptin shLepR (n = 7) chow rats 24 h after food was given back. i Representative western blot images of p-STAT3, t-STAT3, and GAPDH protein levels in the NTS of NTS shMM or shLepR HF rats receiving a NTS CCDC 5 min acute infusion, followed by a 3 h wait, then NTS leptin 5 min acute infusion, and a subsequent 30 min waiting time. j Cumulative food intake of NTS CCDC+leptin shMM (n = 8) or CCDC+leptin shLepR (n = 8) HF rats 24 h after food was given back. k Cumulative food intake of NTS CMC (n = 15, data replotted from Fig. ), STAT3-PI (n = 7), CCDC + STAT3-PI (n = 11), CCDC+leptin+STAT3-PI (n = 6), or CCDC+leptin (n = 11, data replotted from Fig. 2a) HF rats 24 h after food was given back. a , e , f , h , k P values were calculated by one-way ANOVA with Tukey’s multiple comparison. d , g , j P values were calculated by two-tailed t tests. Data presented as mean ± SEM.
Article Snippet: For the NTS lentiviral infection, after the NTS-targeted cannulation surgery and while the rats were still anaesthetized, lentivirus (1.0 × 10 6 IFU) expressing shTGR5 (sc-270404-V), shLepR (sc-270697-V, Santa Cruz Biotechnology Inc.), or shMM (sc-108080, Santa Cruz Biotechnology Inc.) was injected via the NTS bilateral cannula (3 μl/site over 10 min) .
Techniques: Western Blot, Staining, Expressing, Activity Assay, Comparison, Two Tailed Test