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. 2019 Dec 12;9:18925. doi: 10.1038/s41598-019-55176-w

Figure 5.

Figure 5

9-ING-41 reverses established fibroblast to myofibroblast transition. Serum-starved NF and IPF cells were treated with TGF-β for 24 hours. Varying doses of 9-ING-41 (10-5 µM) were then added to the TGF-β–treated cells and allowed to incubate for 48 hours. Conditioned media and lysates from NF (A) and IPF (C) were resolved by SDS-PAGE and immunoblotted for collagen (Col)-1 and α-smooth muscle actin (α-SMA). Lysates were also immunoblotted for GSK-3β phosphorylation at tyrosine 216. β-Actin was used as loading control. For quantitative PCR (qPCR) analyses varying doses of 9-ING-41 (10 to 0.5 µM) were added to TGF-β–treated normal (B) and IPF (D) cells and then allowed to incubate for 24 hours. Total RNA was then isolated and transcribed into cDNA. α-SMA expression was determined by qPCR analyses. GAPDH served as the reference gene. Data are expressed as means ± SEM. n = 3 independent experiments. ∗p < 0.05 versus TGF-β treatment.