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Glycolytic Response to Inflammation Over Time: Role of Myeloid HIF-1alpha.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Fitzpatrick, Susan F 
Gojkovic, Milos 
Macias, David 
Tegnebratt, Tetyana 
Lu, Li 

Abstract

The in vivo response to lipopolysaccharide (LPS) occurs rapidly and has profound physiological and metabolic effects. The hypoxia inducible (HIF) transcription factor is an intrinsic and essential part of inflammation, and is induced by LPS. To determine the importance of the HIF response in regulating metabolism following an LPS response, glucose uptake was quantified in a time dependent manner in mice lacking HIF-1α in myeloid cells. We found that deletion of HIF-1α has an acute protective effect on LPS-induced hypoglycemia. Furthermore, reduced glucose uptake was observed in the heart and brown fat, in a time dependent manner, following loss of HIF-1α. To determine the physiological significance of these findings, cardiovascular, body temperature, and blood pressure changes were subsequently quantified in real time using radiotelemetry measurements. These studies reveal the temporal aspects of HIF-1α as a regulator of the metabolic response to acute LPS-induced inflammation.

Description

Keywords

HIF-1, myeloid, physiological consequences, sepsis, temporal dynamics

Journal Title

Front Physiol

Conference Name

Journal ISSN

1664-042X
1664-042X

Volume Title

9

Publisher

Frontiers Media SA
Sponsorship
Wellcome Trust (092738/Z/10/Z)
National Cancer Institute (R01CA153983)
European Commission (331756)
Wellcome Trust (214283/Z/18/Z)
Funded by a PRF award from the Wellcome Trust and by the Swedish Research Council (Vetenskapsrådet), Swedish Cancer Fund (Cancerfonden) and Swedish Children's Cancer Fund (Barncancerfonden).