Journal of ethnopharmacology · 2025
Haizao Yuhu decoction ameliorates silica-induced lung injury by inhibiting transforming growth factor-beta1/Smad pathway.
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Qian Rui, Xu Yunyi, Zhang Luoning, Wang Liqun, Chen Xuxi, Wang Mengzhu, Bao Qixue, Yao Yuqin, Xie Linshen
Аннотация
ETHNOPHARMACOLOGICAL RELEVANCE: Haizao Yuhu Decoction (HYD) is a traditional Chinese herbal formula known for regulating Qi and dispersing stasis.
AIM OF THE STUDY: This study investigates the effects of HYD on silica-induced lung injury and the underlying mechanisms.
MATERIALS AND METHODS: The main constituents of HYD were identified using ultra-performance liquid chromatography Q-Exactive mass spectrometry (UPLC-QE-MS). Network pharmacology was employed to predict the targets and pathways through which HYD ameliorates silicosis, which were validated in a silica-induced lung injury mouse model and a TGF-β1-induced alveolar epithelial cell model. Pathological evaluation was conducted using hematoxylin-eosin (H&E) and Masson staining, while inflammatory cytokines and fibrosis were assessed via enzyme-linked immunosorbent assay (ELISA) and hydroxyproline quantification. Western blotting (WB) was performed to analyse protein expression levels of targeted markers. Proliferation and migration capabilities of MLE12 cells treated with HYD and its bioactive constituents (glycitein, diosmetin, and limonin) were assessed using cell counting kit-8 (CCK-8) and wound healing assays.
RESULTS: HYD significantly alleviated silica-induced lung injury, reducing inflammatory response and collagen deposition. A total of 176 constituents were identified in HYD, with 111 being pharmacologically active and linked to 1397 potential therapeutic targets, 107 associated with silicosis. Enrichment analyses highlighted the TGF-β1/Smad pathway and epithelial-mesenchymal transition (EMT) in HYD's anti-silicosis effects, which was validated by the restoration of TGF-β1, p-Smad2/Smad2, p-Smad3/Smad3, E-cadherin, and Vimentin following HYD treatment. Additionally, glycitein, diosmetin, and limonin inhibited the proliferation and migration of TGF-β1-induced MLE12 cells and suppressed the activation of TGF-β1/Smad pathway and EMT.
CONCLUSIONS: HYD effectively alleviates silica-induced lung injury by specifically inhibiting the TGF-β1/Smad pathway and EMT process.
AIM OF THE STUDY: This study investigates the effects of HYD on silica-induced lung injury and the underlying mechanisms.
MATERIALS AND METHODS: The main constituents of HYD were identified using ultra-performance liquid chromatography Q-Exactive mass spectrometry (UPLC-QE-MS). Network pharmacology was employed to predict the targets and pathways through which HYD ameliorates silicosis, which were validated in a silica-induced lung injury mouse model and a TGF-β1-induced alveolar epithelial cell model. Pathological evaluation was conducted using hematoxylin-eosin (H&E) and Masson staining, while inflammatory cytokines and fibrosis were assessed via enzyme-linked immunosorbent assay (ELISA) and hydroxyproline quantification. Western blotting (WB) was performed to analyse protein expression levels of targeted markers. Proliferation and migration capabilities of MLE12 cells treated with HYD and its bioactive constituents (glycitein, diosmetin, and limonin) were assessed using cell counting kit-8 (CCK-8) and wound healing assays.
RESULTS: HYD significantly alleviated silica-induced lung injury, reducing inflammatory response and collagen deposition. A total of 176 constituents were identified in HYD, with 111 being pharmacologically active and linked to 1397 potential therapeutic targets, 107 associated with silicosis. Enrichment analyses highlighted the TGF-β1/Smad pathway and epithelial-mesenchymal transition (EMT) in HYD's anti-silicosis effects, which was validated by the restoration of TGF-β1, p-Smad2/Smad2, p-Smad3/Smad3, E-cadherin, and Vimentin following HYD treatment. Additionally, glycitein, diosmetin, and limonin inhibited the proliferation and migration of TGF-β1-induced MLE12 cells and suppressed the activation of TGF-β1/Smad pathway and EMT.
CONCLUSIONS: HYD effectively alleviates silica-induced lung injury by specifically inhibiting the TGF-β1/Smad pathway and EMT process.