Inhibiting Dectin-1/Syk decreased the TGF-β1-signaling pathway. A RAW cells were treated with anti-Dectin-1 antibody (5 µg/mL) for 30 min, and then stimulated with Ang II (1 µM) for 24 h. Total proteins were extracted and subjected to analysis of TGF-β1 protein levels. GAPDH was used as loading control; B RAW cells were treated with anti-Dectin-1 antibody (5 µg/mL) for 30 min, and then stimulated with Ang II (1 µM) for 6 h. Real-time qPCR showing mRNA levels of tgfb1 of each group; C RAW cells were treated with anti-Dectin-1 antibody (5 µg/mL) for 30 min, and then stimulated with Ang II (1 µM) for 24 h. Representative images of TGF-β1 protein expression detected by immune fluorescence microscopy. The right panel shown the quantification of the average fluorescence as detected by immunofluorescence staining compared to Ctrl group. D RAW cells were treated with anti-Dectin-1 antibody (5 µg/mL) for 30 min, and then stimulated with Ang II (1 µM) for 24 h. TGF-β1 protein secretion were determined in the supernatants level of each group by an ELISA method; E RAW cells were treated with Syk inhibitor (R406, 10 µmol/mL) for 1 h, and then stimulated with Ang II (1 µM) for 24 h. Total proteins were extracted and subjected to analysis of TGF-β1 protein levels. GAPDH was used as loading control; F RAW cells were treated with Syk inhibitor (R406, 10 µmol/mL) for 1 h, and then stimulated with Ang II (1 µM) for 6 h. Real-time qPCR showing mRNA levels of tgfb1 of each group; G RAW cells were treated with Syk inhibitor (R406, 10 µmol/mL) for 1 h, and then stimulated with Ang II (1 µM) for 24 h. Representative images of TGF-β1 protein expression detected by immune fluorescence microscopy; H The quantification of the average fluorescence as detected by immunofluorescence staining compared to Ctrl group in Fig. 5G. I RAW cells were treated with Syk inhibitor (R406, 10 µmol/mL) for 1 h, and then stimulated with Ang II (1 µM) for 24 h. TGF-β1 protein secretion were determined in the supernatants level of each group by an ELISA method; J ChIP-qPCR analysis of blocking Dectin-1(D1Ab) and Syk antagonist (R406) inhibited the p65 binding to Tgfb1 promoter induced by Ang II in RAW cells, respectively. [A-J, n = 3; 1-way ANOVA followed by Tukey post-hoc tests (A-J: number of comparisons = 6; *P < 0.05, **P < 0.01, and ***P < 0.001]