The active GLP-1 analogue liraglutide alleviates H9N2 influenza virus-induced acute lung injury in mice

Copyright © 2020 Elsevier Ltd. All rights reserved..

Influenza virus is responsible for significant morbidity and mortality worldwide. Acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) is the major cause of death in influenza virus infected patients. Recent studies indicated that active glucagon like peptide-1 (GLP-1) encoded by glucagon (GCG) gene exerts anti-inflammatory functions. The aim of this study was to determine the potential role of active GLP-1 in H9N2 influenza virus-induced ALI/ARDS in mice. First, we uncovered that GCG mRNA expression levels and GCG precursor protein levels were significantly increased, but total GLP-1 and active GLP-1 levels were decreased in the lungs of H9N2-infected mice. Next, liraglutide, an active GLP-1 analogue, was used to treat infected mice and to observe its effects on H9N2 virus-induced ALI. Liraglutide treatment ameliorated the declined body weight, decreased food intake and mortality observed in infected mice. It also alleviated the severity of lung injury, including lowering lung index, decreasing inflammatory cell infiltration and lowing total protein levels in bronchoalveolar lavage fluid (BALF). In addition, liraglutide did not influence viral titers in infected lungs, but decreased the levels of interleukin-1β, interleukin-6 and tumor necrosis factor-α in BALF. These results indicated that liraglutide alleviated H9N2 virus-induced ALI in mice most likely due to lower levels of pro-inflammatory cytokines.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:150

Enthalten in:

Microbial pathogenesis - 150(2021) vom: 15. Jan., Seite 104645

Sprache:

Englisch

Beteiligte Personen:

Bai, Yu [VerfasserIn]
Lian, Pengjing [VerfasserIn]
Li, Jingyun [VerfasserIn]
Zhang, Zihui [VerfasserIn]
Qiao, Jian [VerfasserIn]

Links:

Volltext

Themen:

839I73S42A
89750-14-1
Acute lung injury
Glucagon like peptide-1 (GLP-1)
Glucagon-Like Peptide 1
H9N2 influenza virus
Journal Article
Liraglutide
Mice

Anmerkungen:

Date Completed 17.06.2021

Date Revised 17.06.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.micpath.2020.104645

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM318510367