Results of RT-PCR and ELISA using human lung fibroblasts (TIG-1-20 and HPF-a)
(A,B) LTBP2 and Acta2 mRNA levels in human lung fibroblasts with or without 48-h external administration of TGF-β1 (n=3 per group). Statistical comparisons by t test were performed using the value of the untreated group as a control. *P<0.05, **P<0.01, ***P<0.001. (C) Protein concentrations, measured by ELISA, of LTBP2 in culture supernatant with or without 48-h external administration of TGF-β1 (n=3 per group). Statistical comparisons by t test were performed using the value of the untreated group as a control. *P<0.05, **P<0.01, ***P<0.001.