Figure 5.
Hypoxia upregulates TGFβ1 level in WI38 fibroblast cells in vitro. (A) The mRNA level of TGFβ1 in WI38 cells under normoxia (NX) and hypoxia (HX) conditions for 24 h. (B–C) The protein level of TGFβ1 in cell body (B) and culture medium (C) of WI38 cells under normoxia (NX) and hypoxia (HX) conditions for 24 h. (D) The protein level of p-SMAD2 in WI38 cells under normoxia (NX) and hypoxia (HX) conditions for 24 h. n = 3 wells.
