Motoyasu Kato, Fumiyuki Takahashi, Tadashi Sato, Yoichiro Mitsuishi, Ken Tajima, Hiroaki Ihara, Fariz Nurwidya, Hario Baskoro, Akiko Murakami, Isao Kobayashi, Moulid Hidayat, Naoko Shimada, Shinichi Sasaki, Reiko Mineki, Tsutomu Fujimura, Toshio Kumasaka, Shin-Ichiro Niwa, Kazuhisa Takahashi
Purpose: Idiopathic pulmonary fibrosis (IPF) is characterized by the accumulation of extracellular matrix (ECM) protein in the lungs. Transforming growth factor (TGF) β-induced ECM protein synthesis contributes to the development of IPF. Tranilast, an anti-allergy drug, suppresses TGFβ expression and inhibits interstitial renal fibrosis in animal models. However, the beneficial effects of tranilast or its mechanism as a therapy for pulmonary fibrosis have not been clarified. Methods: We investigated the in vitro effect of tranilast on ECM production and TGFβ/SMAD2 pathway in TGFβ2-stimulated A549 human alveolar epithelial cells, using quantitative polymerase chain reaction, Western blotting, and immunofluorescence...
2020: Drug Design, Development and Therapy