Nolan KE, Baer LA, Karekar P, Nelson AM, Stanford. Metabolic shifts modulate lung injury caused by infection with H1N1 influenza A virus. Virology. 2021 Apr 6;559:111-119
Influenza A virus (IAV) infection alters lung epithelial cell metabolism in vitro by promoting a glycolytic shift. We hypothesized that this shift benefits the virus rather than the host and that inhibition of glycolysis would improve infection outcomes. A/WSN/33 IAV-inoculated C57BL/6 mice were treated daily from 1 day post-inoculation (d.p.i.) with 2-deoxy-d-glucose (2-DG) to inhibit glycolysis and with the pyruvate dehydrogenase kinase (PDK) inhibitor dichloroacetate (DCA) to promote flux through the TCA cycle. To block OXPHOS, mice were treated every other day from 1 d.p.i. with the Complex I inhibitor rotenone (ROT). 2-DG significantly decreased nocturnal activity, reduced respiratory exchange ratios, worsened hypoxemia, exacerbated lung dysfunction, and increased humoral inflammation at 6 d.p.i. DCA and ROT treatment normalized oxygenation and airway resistance and attenuated IAV-induced pulmonary edema, histopathology, and nitrotyrosine formation. None of the treatments altered viral replication. These data suggest that a shift to glycolysis is host-protective in influenza.
See Also:
Latest articles in those days:
- Avian Influenza Weekly Update # 1036: 06 March 2026 1 hours ago
- Mapping global avian influenza risk patterns through waterbird activity entropy 1 hours ago
- Reverse genetic rescue and propagation of human influenza A(H3N2) master virus seed in HEK-293 suspension cells 1 hours ago
- Evaluation of immune response in calves vaccinated with baculovirus vectored inactivated vaccine expressing 2.3.4.4b H5 protein of highly pathogenic Avian Influenza virus 1 hours ago
- Genomic surveillance of H1N1, H3N2 and influenza B Victoria lineage viruses in Qingyang (2020-2023): phylogenetic and molecular characteristics analysis of HA/NA genes 1 hours ago
[Go Top] [Close Window]


