IL-11 neutralizing antibodies alleviate pulmonary fibrosis in aging mice by inhibiting TGF-β/NOX4/IL-11 signaling pathway. (PubMed, Biochem Pharmacol)
Both in vitro and in vivo experiments have validated the therapeutic efficacy and molecular mechanisms of IL-11-neutralizing antibodies in pulmonary fibrosis, offering promising insights for future anti-fibrotic drug development. Abbreviations: IL-11, Interleukin-11; IPF, Idiopathic pulmonary fibrosis; TGF-β, Transforming growth factor-β; NOX4, NADPH oxidase-4; SASP, Senescence-associated secretory phenotype; ECM, Extracellular matrix; α-SMA, α-smooth muscle actin; STAT3, Signal transducer and activator of transcription 3; ERK, Extracellular regulated protein kinases; AKT, Protein kinase B; BLM, Bleomycin; WT, Wild-type; KO, Knockout; qRT-PCR, Quantitative real-time polymerase chain reaction; WB, Western blot; hAb, Humanized antibody; mAb, Monoclonal antibody; FVC, Forced vital capacity; CTGF, Connective tissue growth factor; PDGFR-α, Platelet-derived growth factor receptor-α; TNF-α, Tumor necrosis factor-α; Nrf2, NFE2-related factor 2; EMT, Epithelial-mesenchymal transition; HE, Hematoxylin and eosin; PVDF, Polyvinylidene fluoride; GAPDH, Glyceraldehyde-3-phosphate dehydrogenase; siRNA, Small interfering RNA; IL-6, Interleukin-6; MEK, Mitogen-Activated Protein Kinase Kinase; TIME, TGF-β1/IL-11/MEK/ERK; HRP, Horseradish Peroxidase; MLG, Mouse lung fibroblast cell line MLg; NCBI, National Center for Biotechnology Information; Bcl2, BCL2 apoptosis regulator; Bax, BCL2 Associated X, apoptosis regulator; MSC, Mesenchymal Stem Cell; RSK, p90 Ribosomal S6 Kinase; KD, Dissociation Constant; Nin, Nintedanib; CTL, Control; Eto, Etoposide; SA-β-Gal, Senescence-Associated β-Galactosidase.