ArticleMolecular medicine (Cambridge, Mass.)2024
DsbA-L activates TGF-β1/SMAD3 signaling and M2 macrophage polarization by stimulating AKT1 and NLRP3 to promote pulmonary fibrosis.
Article in Molecular medicine (Cambridge, Mass.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Review
- NSUN2-Mediated mAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Effect of LY2109761 on TGF-β1/TGFβRI/Smad Pathway and Hepatic Fibrosis Cysts Formation in Rats Infected with Echinococcus granulosus: an In Vitro and In Vivo Study.Acta parasitologica · 2026Article
- Bone Marrow-Derived Macrophage NLRP3 Mediates Renal Fibrosis by triggering TGF-β/Smad3-mediated Macrophage-Myofibroblast Transition.International journal of biological sciences · 2026Article
- Th9/IL-9 axis mediates airway fibrosis in traumatic tracheal stenosis via TGF-β1/SMAD2/3 signaling.Respiratory research · 2025Article
- Caspase-9 activates β-catenin signaling to promote pulmonary fibrosis.Journal of translational medicine · 2025Article
- From Diet to Scar: Novel Mendelian Randomization and Mediation Analyses Linking Dietary Habits, Gut Microbiota, and Hypertrophic Scarring.Food science & nutrition · 2025Article
- SPHK1-mediated M2 macrophage polarization drives TGF-β1-dependent thrombus fibrosis.Frontiers in immunology · 2025Article
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Authors and funding
8 authors.
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Abstract
backgroundPulmonary fibrosis (PF) is a progressive and difficult-to-heal lung disease that poses a significant threat to human life and health. This study aimed to investigate the potential pathological mechanisms of PF and to identify new avenues for the treatment of PF.
methodsClinical samples were collected to assess the effect of disulfide-bond A oxidoreductase-like protein (DsbA-L) on PF. TGF-β1-induced MLE-12 cell model and bleomycin (BLM)-induced mice model were established. Changes in physiological morphology and fibrosis were observed in the lung tissues. The degree of apoptosis and the mitochondrial function was analyzed. The expression of relative cytokines was examined. The CD68
resultsThe expression of DsbA-L was upregulated in patients with PF and PF-like models. In vitro, DsbA-L overexpression exacerbated TGF-β1-induced the deposition of extracellular matrix (ECM), apoptosis, inflammation, and mitochondrial damage, whereas DsbA-L silencing exerted the opposite effects. DsbA-L silencing inhibited the activation of AKT1, NLRP3, and SMAD3 by TGF-β1. MLE-12 cells silencing DsbA-L limited the polarization of RAW264.7 cells towards the M2 phenotype. AKT1 agonist or NLRP3 agonist reversed the role of DsbA-L silencing in inhibiting the TGF-β1/SMAD3 pathway and M2 macrophage polarization. In vivo, DsbA-L knockout protected mice from PF-like pathological damage caused by BLM.
conclusionDsbA-L exhibited a significant profibrotic effect in lung epithelial cells and mice, which increased the levels of AKT1 and NLRP3 to activate the TGF-β1/SMAD3 pathway and M2 macrophage polarization. These findings could shed light on new clues for comprehension and treatment of PF.
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