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. 2020 Sep 30;11:552818. doi: 10.3389/fphar.2020.552818

Figure 2.

Figure 2

Effects of soluble DPP4 on protein kinases and transcription factors in fibroblasts. Protein expression measured in NIH-3T3 fibroblasts after their treatment with recombinant DPP4 (80 and 200 ng/ml) or TGF-β (10 ng/ml) for 48 h. (A) Protein expression determined using Western blotting. Calculated ratios of (B) p-ERK to GAPDH, (C) p-p65 to GAPDH, and (D) p-SMAD2/3 to GAPDH were shown. (n = 4) *p < 0.05 vs. control.