ReferenceID 5974

The inhibition of GLUT1-induced glycolysis in macrophage by phloretin participates in the protection during acute lung injury

Int Immunopharmacol

The increased level of glycolysis in macrophage aggravates lipopolysaccharide (LPS)-induced acute lung injury (ALI). Glucose transporter 1 (GLUT1) serves as a ubiquitously expressed glucose transporter, which could activ

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Reference Id
5974
Evidence Id
22564
Core Evidence Id
22564
Source Reference Id
5212
Herb2 Reference Id
HBREF006009
Subject Paper Key
HBIN039576_35853279
Pubmed Id
35853279
Doi
10.1016/j.intimp.2022.109049
Paper Title
The inhibition of GLUT1-induced glycolysis in macrophage by phloretin participates in the protection during acute lung injury
Paper Abstract
The increased level of glycolysis in macrophage aggravates lipopolysaccharide (LPS)-induced acute lung injury (ALI). Glucose transporter 1 (GLUT1) serves as a ubiquitously expressed glucose transporter, which could activate inflammatory response by mediating glycolysis. Phloretin (PHL), an apple polyphenol, is also an inhibitor of GLUT1, possessing potent anti-inflammatory effects in various diseases. However, the potential role of PHL in ALI remains unclear till now. This study aims to investigate the impacts of PHL on ALI as well as its possible mechanisms. A mouse ALI model was established via intratracheal injection of LPS. LPS-induced primary macrophages were used to mimic in vitro ALI. Mice were pretreated with low or high dosage of PHL for 7 days via intragastric administration once a day before LPS injection. The results showed that PHL pretreatment significantly prevented LPS-induced lung pathological injury and inflammatory response. Meantime, PHL pretreatment also decreased the level of glycolysis in macrophage during ALI. In terms of mechanism, PHL inhibited the mRNA and protein expression of GLUT1. In vitro experiments further showed GLUT1 overexpression in macrophage by infection with lentivirus could abolish the inhibition of inflammation and glycolysis mediated by PHL, suggesting that GLUT1 was essential for the protection of PHL. Taken together, PHL pretreatment may protect against LPS-induced ALI by inhibiting glycolysis in macrophage in a GLUT1-dependent manner, which may be a candidate against ALI in the future.
Journal
Int Immunopharmacol
Publish Year
2022
Experiment Subject
mouse
Experiment Type
Animal & Cell Experiment
Phenotype Related
Acute Lung Injury
Paper Title Cn
Paper Title En
The inhibition of GLUT1-induced glycolysis in macrophage by phloretin participates in the protection during acute lung injury
Bilingual Status
semi_complete