Open AccessA novel multikinase inhibitor SKLB‐YTH‐60 ameliorates inflammation and fibrosis in bleomycin‐induced lung fibrosis mouse models
Author(s) -
Liu Hongyao,
Wu Xiuli,
Gan Cailing,
Wang Liqun,
Wang Guan,
Yue Lin,
Liu Zhihao,
Wei Wei,
Su Xingping,
Zhang Qianyu,
Tan Zui,
Yao Yuqin,
Ouyang Liang,
Yu Luoting,
Ye Tinghong
Publication year - 2021
Publication title -
cell proliferation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.647
H-Index - 74
eISSN - 1365-2184
pISSN - 0960-7722
DOI - 10.1111/cpr.13081
Subject(s) - bleomycin , fibrosis , medicine , idiopathic pulmonary fibrosis , cancer research , pulmonary fibrosis , extracellular matrix , pharmacology , smad , immune system , inflammation , lung , epithelial–mesenchymal transition , immunology , transforming growth factor , cancer , biology , microbiology and biotechnology , chemotherapy , metastasis
Objectives Idiopathic pulmonary fibrosis (IPF) is marked by the excessive accumulation of extracellular matrix, which participates in a variety of chronic diseases or injuries and seriously threatens human health. Due to the side effects of clinical drugs, there is still a need to develop novel and less toxic drugs to treat pulmonary fibrosis. Materials and Methods SKLB‐YTH‐60 was developed through computer‐aided drug design, de novo synthesis and high‐throughput screening. We employed the bleomycin (BLM)‐induced lung fibrosis animal models and used TGF‐β 1 to induce the epithelial‐mesenchymal transition (EMT) of A549 cells in vitro. Meanwhile, the protein expression of collagen I and the α‐smooth muscle actin (α‐SMA), E‐cadherin, p‐FGFR1, p‐PLCγ, p‐Smad2/3 and p‐Erk1/2 was detected by western blot. Results YTH‐60 has obvious anti‐proliferative activity on fibroblasts and A549 cells. Moreover, YTH‐60 could impair the EMT of A549 cells and suppressed fibrosis by inhibiting FGFR and TGF‐β/Smad‐dependent pathways. Intraperitoneal administration of preventive YTH‐60 could significantly reduce the degree of fibrosis in mice and regulate the imbalance of the immune microenvironment. In addition, we observed that therapeutic YTH‐60 treatment attenuated fibrotic changes in mice during the period of fibrosis. Importantly, YTH‐60 has shown an acceptable oral bioavailability ( F = 17.86%) and appropriate eliminated half‐life time ( T 1/2 = 8.03 hours). Conclusions Taken together, these preclinical evaluations suggested that YTH‐60 could be a promising drug candidate for treating IPF.