ArticleRespiratory research2024
Inhibition of IRE1α/XBP1 axis alleviates LPS-induced acute lung injury by suppressing TXNIP/NLRP3 inflammasome activation and ERK/p65 signaling pathway.
Article in Respiratory research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- TRPV4 drives macrophage pyroptosis via mitochondrial dysfunction and mtROS-dependent NLRP3 inflammasome activation in acute lung injury.Redox biology · 2026Article
- Endoplasmic reticulum stress and the unfolded protein response in lung diseases: molecular pathways and therapeutic interventions.The Journal of pathology · 2026Review
- Article
- Pulmonary Vascular Endothelial Cells in Lung Diseases: Mechanisms, Therapeutic Strategies, and Future Directions.Cell proliferation · 2026Review
- Endoplasmic Reticulum Stress Induced by Turbulence of Mitochondrial Fusion and Fission Was Involved in Isoproterenol-Induced H9c2 Cell Injury.International journal of molecular sciences · 2026Article
- Endoplasmic Reticulum Stress as a Stage-Dependent Regulatory Hub in Rheumatoid Arthritis.Journal of inflammation research · 2026Review
- High-Altitude Hypoxic Preconditioning Attenuates Lipopolysaccharide-Induced Lung Injury and is Associated with Alveolar-Capillary Barrier Maintenance.Journal of inflammation research · 2026Article
- A synergistic multi-omics approach: causal sepsis drivers identified in activated CD4Frontiers in cellular and infection microbiology · 2026Article
- Protein arginine methylation regulates anti-inflammatory programming in response to aging stress.iScience · 2025Article
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7 authors.
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Abstract
backgroundAcute lung injury or acute respiratory distress syndrome (ALI/ARDS) is a devastating clinical syndrome with high incidence and mortality rates. IRE1α-XBP1 pathway is one of the three major signaling axes of endoplasmic reticulum stress that is involved in inflammation, metabolism, and immunity. The role and potential mechanisms of IRE1α-XBP1 axis in ALI/ARDS has not well understood.
methodsThe ALI murine model was established by intratracheal administration of lipopolysaccharide (LPS). Hematoxylin and eosin (H&E) staining and analysis of bronchoalveolar lavage fluid (BALF) were used to evaluate degree of lung injury. Inflammatory responses were assessed by ELISA and RT-PCR. Apoptosis was evaluated using TUNEL staining and western blot. Moreover, western blot, immunohistochemistry, and immunofluorescence were applied to test expression of IRE1α, XBP1, NLRP3, TXNIP, IL-1β, ERK1/2 and NF-κB p65.
resultsThe expression of IRE1α significantly increased after 24 h of LPS treatment. Inhibition of the IRE1α-XBP1 axis with 4µ8C notably improved LPS-induced lung injury and inflammatory infiltration, reduced the levels of IL-6, IL-1β, and TNF-α, and decreased cell apoptosis as well as the activation of the NLRP3 inflammasome. Besides, in LPS-stimulated Beas-2B cells, both 4µ8C and knockdown of XBP1 diminished the mRNA levels of IL-6 and IL-1B, inhibited cell apoptosis and reduced the protein levels of TXNIP, NLRP3 and secreted IL-1β. Mechanically, the phosphorylation and nuclear translocation of ERK1/2 and p65 were significantly suppressed by 4µ8C and XBP1 knockdown.
conclusionsIn summary, our findings suggest that IRE1α-XBP1 axis is crucial in the pathogenesis of ALI/ARDS, whose suppression could mitigate the pulmonary inflammatory response and cell apoptosis in ALI through the TXNIP/NLRP3 inflammasome and ERK/p65 signaling pathway. Our study may provide new evidence that IRE1α-XBP1 may be a promising therapeutic target for ALI/ARDS.
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