Figure 4
From: TGF-β1 increases proliferation of airway smooth muscle cells by phosphorylation of map kinases
TGF-β1 increased expression of phosphorylated MAPKs in ASMCs. Confluent and growth-arrested ASMCs were incubated with 1 ng/ml of TGF-β1 for 1, 5, 30 minutes, 24 or 48 hours prior to protein extraction and Western analysis for phosphorylated or total p38 (Panel A), ERK1/2 (Panel B), and JNK (Panel C). * p < 0.05, ** p < 0.01, ** p < 0.001 compared to control, n = 4–10, C = control.