Open AccessCross-Talk between Transforming Growth Factor-β and Periostin Can Be Targeted for Pulmonary Fibrosis
Author(s) -
Yasuhiro Nanri,
Satoshi Nunomura,
Yasuhiro Terasaki,
Tomohito Yoshihara,
Yusuke Hirano,
Yasuyuki Yokosaki,
Yukie Yamaguchi,
Carol FeghaliBostwick,
Katsuhiro Ajito,
Shoichi Murakami,
Simon J. Conway,
Kenji Izuhara
Publication year - 2020
Publication title -
american journal of respiratory cell and molecular biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.469
H-Index - 161
eISSN - 1535-4989
pISSN - 1044-1549
DOI - 10.1165/rcmb.2019-0245oc
Subject(s) - periostin , pulmonary fibrosis , matricellular protein , idiopathic pulmonary fibrosis , fibrosis , medicine , cancer research , transforming growth factor , cardiac fibrosis , myofibroblast , bleomycin , lung , transforming growth factor beta , immunology , pathology , biology , extracellular matrix , microbiology and biotechnology , chemotherapy
Idiopathic pulmonary fibrosis (IPF) is a devastating disease characterized as progressive and irreversible fibrosis in the interstitium of lung tissues. There is still an unmet need to develop a novel therapeutic drug for IPF. We have previously demonstrated that periostin, a matricellular protein, plays an important role in the pathogenesis of pulmonary fibrosis. However, the underlying mechanism of how periostin causes pulmonary fibrosis remains unclear. In this study, we sought to learn whether the cross-talk between TGF-β (transforming growth factor-β), a central mediator in pulmonary fibrosis, and periostin in lung fibroblasts leads to generation of pulmonary fibrosis and whether inhibitors for integrin α V β 3 , a periostin receptor, can block pulmonary fibrosis in model mice and the TGF-β signals in fibroblasts from patients with IPF. We found that cross-talk exists between TGF-β and periostin signals via α V β 3 /β 5 converging into Smad3. This cross-talk is necessary for the expression of TGF-β downstream effector molecules important for pulmonary fibrosis. Moreover, we identified several potent integrin low-molecular-weight inhibitors capable of blocking cross-talk with TGF-β signaling. One of the compounds, CP4715, attenuated bleomycin-induced pulmonary fibrosis in vivo in mice and the TGF-β signals in vitro in fibroblasts from patients with IPF. These results suggest that the cross-talk between TGF-β and periostin can be targeted for pulmonary fibrosis and that CP4715 can be a potential therapeutic agent to block this cross-talk.