Dietary administration of the glycolytic inhibitor 2-deoxy-D-glucose reduces endotoxemia-induced inflammation and oxidative stress: Implications in PAMP-associated acute and chronic pathology

Frontiers in Pharmacology

Pharmacology

Ravi Soni¹  Bilikere S. Dwarakanath¹  Namita Kalra¹  Anant Narayan Bhatt¹  Saurabh Seth¹  Kailash Manda¹  Bal Gangadhar Roy¹  Sanjay Pandey²  Saurabh Singh²  K. Natarajan³  Vandana Anang³ 

[1] Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India;Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India;Infectious Disease Immunology Laboratory, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India;Department of Radiation Oncology, Albert Einstein College of Medicine, Bronx, NY, United States;Infectious Disease Immunology Laboratory, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India;

关键词: metabolism;    pathogens;    glycolysis;    sepsis;    chronic inflammation;    neutrophils;    polymorphonuclear cells;    energy restriction;   

DOI  :  10.3389/fphar.2023.940129

 received in 2022-05-10, accepted in 2023-04-20,  发布年份 2023

来源: Frontiers

【 摘 要 】

Pathogen-associated molecular patterns (PAMPs) like bacterial cell wall components and viral nucleic acids are known ligands of innate inflammatory receptors that trigger multiple inflammatory pathways that may result in acute inflammation and oxidative stress-driven tissue and organ toxicity. When dysregulated, this inflammation may lead to acute toxicity and multiorgan failure. Inflammatory events are often driven by high energy demands and macromolecular biosynthesis. Therefore, we proposed that targeting the metabolism of lipopolysaccharide (LPS)-driven inflammatory events, using an energy restriction approach, can be an effective strategy to prevent the acute or chronic detrimental effects of accidental or seasonal bacterial and other pathogenic exposures. In the present study, we investigated the potential of energy restriction mimetic agent (ERMA) 2-deoxy-D-glucose (2-DG) in targeting the metabolism of inflammatory events during LPS-elicited acute inflammatory response. Mice fed with 2-DG as a dietary component in drinking water showed reduced LPS-driven inflammatory processes. Dietary 2-DG reduced LPS-induced lung endothelial damage and oxidative stress by strengthening the antioxidant defense system and limiting the activation and expression of inflammatory proteins, viz., P-Stat-3, NfκΒ, and MAP kinases. This was accompanied by decreased TNF, IL-1β, and IL-6 levels in peripheral blood and bronchoalveolar lavage fluid (BALF). 2-DG also reduced the infiltration of PMNCs (polymorphonuclear cells) in inflamed tissues. Altered glycolysis and improved mitochondrial activity in 2-DG-treated RAW 264.7 macrophage cells suggested possible impairment of macrophage metabolism and, therefore, activation in macrophages. Taken together, the present study suggests that inclusion of glycolytic inhibitor 2-DG as a part of the diet can be helpful in preventing the severity and poor prognosis associated with inflammatory events during bacterial and other pathogenic exposures.

【 授权许可】

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Copyright © 2023 Pandey, Anang, Singh, Seth, Bhatt, Kalra, Manda, Soni, Roy, Natarajan and Dwarakanath.