Cited by 66Interstitial Lung Diseases and Idiopathic Pulmonary FibrosisPulmonary Hypertension Research and TreatmentsChronic Obstructive Pulmonary Disease (COPD) Research

Glucagon like peptide-1 attenuates bleomycin-induced pulmonary fibrosis, involving the inactivation of NF-κB in mice

GOU, Si, ZHU, Tao, WANG, Wei, XIAO, Min, WANG, Xi-chen, CHEN, Zhong-hua·2014·International Immunopharmacology

Abstract

Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease with high mortality and poor prognosis. Previous studies confirmed that NF-κB plays a critical role in the pathogenesis of pulmonary fibrosis and glucagon like peptide-1 (GLP-1) has a property of anti-inflammation by inactivation of NF-κB. Furthermore, the GLP-1 receptor was detected in the lung tissues. Our aim was to investigate the potential value and mechanisms of GLP-1 on BLM-induced pulmonary fibrosis in mice. Mice with BLM-induced pulmonary fibrosis were treated with or without GLP-1 administration. 28 days after BLM infusion, the number of total cells, macrophages, neutrophils, lymphocytes, and the content of TGF-β1 in BALF were measured. Hematoxylin-eosin (HE) staining and Masson's trichrome (MT) staining were performed. The Ashcroft score and hydroxyproline content were analyzed. RT-qPCR and western blot were used to evaluate the expression of α-SMA and VCAM-1. The phosphorylation of NF-κB p65 was also assessed by western blot. DNA binding of NF-κB p65 was measured through Trans(AM) p65 transcription factor ELISA kit. GLP-1 reduced inflammatory cell infiltration and the content of TGF-β1 in BLAF in mice with BLM injection. The Ashcroft score and hydroxyproline content were decreased by GLP-1 administration. Meanwhile, BLM-induced overexpression of α-SMA and VCAM-1 were blocked by GLP-1 treatment in mice. GLP-1 also reduced the ratio of phosphor-NF-κB p65/total-NF-κB p65 and NF-κB p65 DNA binding activity in BLM-induced pulmonary fibrosis in mice. Our data found that BLM-induced lung inflammation and pulmonary fibrosis were significantly alleviated by GLP-1 treatment in mice, possibly through inactivation of NF-κB.

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Crossref · 10.1016/j.intimp.2014.07.010

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  • GLP-1 therapy may be beneficial for the treatment of chronic inflammatory diseases including nonalcoholic steatohepatitis, atherosclerosis, neurodegenerative disorders, diabetic nephropathy, asthma, and psoriasis.

    “Thus, GLP-1 therapy may be beneficial for the treatment of chronic inflammatory diseases including nonalcoholic steatohepatitis, atherosclerosis, neurodegenerative disorders, diabetic nephropathy, asthma, and psoriasis [14, 26–32].”

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Authors
GOU, S., ZHU, T., WANG, W., XIAO, M., WANG, X.-C., & CHEN, Z.-H.
Affiliations
Sichuan University (CN)
Venue
International Immunopharmacology
Publisher
Elsevier BV
Published
2014-10
Volume
22
Issue
2
Pages
498-504
ISSN
1567-5769 (ISSN-L)
OpenAlex
W1994449362
Cited by
66
References
42
Citations by year
2026: 1 · 2025: 4 · 2024: 6 · 2023: 6 · 2022: 9 · 2021: 6 · 2020: 7 · 2019: 5 · 2018: 6 · 2017: 8 · 2016: 4 · 2015: 4
FWCI
4.25
Type
journal article
Language
en
Open access
closed
Locations
  • International Immunopharmacology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Pulmonary Hypertension Research and Treatments
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
Keywords
glucagon-like peptide-1, pulmonary fibrosis, bleomycin-induced lung injury, NF-κB, p65 phosphorylation, lung inflammation, TGF-β1, alpha-smooth muscle actin, VCAM-1, idiopathic pulmonary fibrosis, anti-inflammatory therapy
MeSH terms
Actins, Animals, Anti-Inflammatory Agents, Antibiotics, Antineoplastic, Bleomycin, Bronchoalveolar Lavage Fluid, Cell Count, Collagen, DNA, Hydroxyproline, Lung, Male, Mice, Inbred C57BL, Pulmonary Fibrosis, NF-kappa B, Vascular Cell Adhesion Molecule-1, Transcription Factor RelA, Glucagon-Like Peptide 1, Transforming Growth Factor beta1

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