ArticleBMC pulmonary medicine2019
Ligustrazin increases lung cell autophagy and ameliorates paraquat-induced pulmonary fibrosis by inhibiting PI3K/Akt/mTOR and hedgehog signalling via increasing miR-193a expression.
Article in BMC pulmonary medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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Who cites it
54 citing papers in PubMed, 94 citations in OpenAlex.
- Geranylgeranylacetone Alleviates Pulmonary Fibrosis in Mice by Activation of Nrf2 /HO-1/NQO1 Pathway.Cell biochemistry and biophysics · 2026Article
- Intranasal curcumin mitigates paraquat-induced oxidative lung damage via involvement of neutrophil extracellular traps (NETs) in mice model.Naunyn-Schmiedeberg's archives of pharmacology · 2026Article
- Dian sanguis draconis improves pulmonary fibrosis by activating autophagy to regulate the PA/PAI-1 balance.Histology and histopathology · 2025Article
- Insights into the Molecular Mechanisms and Novel Therapeutic Strategies of Stenosis Fibrosis in Crohn's Disease.Biomedicines · 2025Review
- Protective effects of Silibinin and cinnamic acid against paraquat-induced lung toxicity in rats: impact on oxidative stress, PI3K/AKT pathway, and miR-193a signaling.Naunyn-Schmiedeberg's archives of pharmacology · 2025Article
- Current Understanding of Pulmonary Fibrosis: Pathogenesis, Diagnosis, and Therapeutic Approaches.Canadian respiratory journal · 2025Review
- Egg-driven immunosuppression and granuloma zonation in Peyer's patches of mice withFrontiers in cellular and infection microbiology · 2025Article
- Article
- Fibrosis-Related microRNAs in Crohn's Disease with Fibrostenosis and Inflammatory Stenosis.International journal of molecular sciences · 2024Article
- Mesenchymal stem cell-based therapy for paraquat-induced lung injury.Cell biology and toxicology · 2024Review
- Monomeric compounds from natural products for the treatment of pulmonary fibrosis: a review.Inflammopharmacology · 2024Review
- miR-126a-5p inhibits H1N1-induced inflammation and matrix protease secretion in lung fibroblasts by targeting ADAMTS-4.Archives of virology · 2024Article
- Carbon monoxide-induced autophagy enhances human mesenchymal stromal cell function via paracrine actions in murine polymicrobial sepsis.Molecular therapy : the journal of the American Society of Gene Therapy · 2024Article
- Dihydromyricetin alleviates inflammatory bowel disease associated intestinal fibrosis by inducing autophagy through the PI3K/AKT/mTOR signaling pathway.Naunyn-Schmiedeberg's archives of pharmacology · 2024Article
- Pachymic Acid Protects Against Bleomycin-Induced Pulmonary Fibrosis by Suppressing Fibrotic, Inflammatory, and Oxidative Stress Pathways in Mice.Applied biochemistry and biotechnology · 2024Article
- Qingfei Tongluo Mixture Attenuates Bleomycin-Induced Pulmonary Inflammation and Fibrosis through mTOR-Dependent Autophagy in Rats.Mediators of inflammation · 2024Article
- Revisiting the role of MicroRNAs in the pathogenesis of idiopathic pulmonary fibrosis.Frontiers in cell and developmental biology · 2024Review
- Paraquat disrupts the blood-brain barrier by increasing IL-6 expression and oxidative stress through the activation of PI3K/AKT signaling pathway.Open medicine (Warsaw, Poland) · 2024Article
- Inhibition of Hedgehog signaling ameliorates foam cell formation by promoting autophagy in early atherosclerosis.Cell death & disease · 2023Article
- Role of PI3K/Akt/mTOR pathway-mediated macrophage autophagy in affecting the phenotype transformation of lung fibroblasts induced by silica dust exposure.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2023Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundReactive oxygen species (ROS) levels largely determine pulmonary fibrosis. Antioxidants have been found to ameliorate lung fibrosis after long-term paraquat (PQ) exposure. The effects of antioxidants, however, on the signalling pathways involved in PQ-induced lung fibrosis have not yet been investigated sufficiently. Here, we examined the impacts of ligustrazin on lung fibrosis, in particular ROS-related autophagy and pro-fibrotic signalling pathways, using a murine model of PQ-induced lung fibrosis.
methodsWe explored the effects of microRNA-193 (miR-193a) on Hedgehog (Hh) and PI3K/Akt/mTOR signalling and oxidative stress in lung tissues. Levels of miR-193a, protein kinase B (Akt), phosphoinositide 3-Kinase (PI3K), ceclin1, mammalian target of rapamycin (mTOR), sonic hedgehog (SHH), myosin-like Bcl2 interacting protein (LC3), smoothened (Smo), and glioma-associated oncogene-1 (Gli-1) mRNAs were determined with quantitative real-time PCR. Protein levels of PI3K, p-mTOR, p-Akt, SHH, beclin1, gGli-1, LC3, smo, transforming growth factor-β1 (TGF-β1), mothers against DPP homologue-2 (Smad2), connective tissue growth factor (CTGF), collagen I, collagen III, α-smooth muscle actin (α-SMA) nuclear factor erythroid 2p45-related factor-2 (Nrf2), and p-Smad2 were detected by western blotting. In addition, α-SMA, malondialdehyde, ROS, superoxide dismutase (SOD), oxidised and reduced glutathione, hydroxyproline, and overall collagen levels were identified in lung tissues using immunohistochemistry.
resultsLong-term PQ exposure blocked miR-193a expression, reduced PI3K/Akt/mTOR signalling, increased oxidative stress, inhibited autophagy, increased Hh signalling, and facilitated the formation of pulmonary fibrosis. Ligustrazin blocked PI3K/Akt/mTOR and Hh signalling as well as reduced oxidative stress via increasing miR-193a expression and autophagy, all of which reduced pulmonary fibrosis. These effects of ligustrazin were accompanied by reduced TGF-β1, CTGF, and Collagen I and III expression.
conclusionsLigustrazin blocked PQ-induced PI3K/Akt/mTOR and Hh signalling by increasing miR-193a expression, thereby attenuating PQ-induced lung fibrosis.
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