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Qingfeiyin decoction in idiopathic pulmonary fibrosis:Lung-targeted components and PI3K-AKT modulation
Yongqi Liu1, Luyao Song2, Shiyi Chen2
1School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China; Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, China.
Ethnopharmacological Relevance:
Qingfeiyin decoction (QFY), a well-documented traditional Chinese medicine formula, is used to treat a variety of lung diseases. However, the effect of QFY on idiopathic pulmonary fibrosis (IPF) is still unclear.
Aim Of The Study:
This study aimed to investigate the effect of QFY on IPF, identify its bioactive components, and reveal the possible mechanism.
Materials And Methods:
A bleomycin-induced pulmonary fibrosis mouse model was established to evaluate the anti-IPF effects of QFY. The bioactive ingredients in QFY were identified by HPLC-MS, following which their in vitro effects were examined by the cell models of epithelial-to-mesenchymal transition, fibroblast-to-myofibroblast transition and macrophage polarization. Network pharmacology and clinical dataset (GSE110147) were integrated to predict the possible mechanism of the bioactive ingredients, which were verified by in vitro experiments, molecular docking and molecular dynamics simulation.
Results:
QFY demonstrated dose-dependent amelioration of IPF pathological phenotypes. Oroxylin A (OA), Geniposide (GDS), Baicalin (BCL), and Genipin-1-gentiobioside (GG) were identified with significant lung tissue enrichment, where OA and BCL exhibited obvious improvement in EMT, FMT, and macrophage polarization experiments. Network pharmacology and bioinformatics analyses revealed the association of OA/GDS/BCL/GG with the PI3K-AKT signaling pathway, which were confirmed by their effects on the migration and apoptosis of A549 and HFL1 cells. Concurrently, molecular docking and molecular dynamics simulations demonstrated strong binding affinities of BCL and OA for p110α and p110γ subunits of PI3K.
Conclusions:
Our work demonstrates the potential of QFY in the treatment of IPF, which might due to the bioactive ingredients in the lung affecting the PI3K signaling pathway.
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