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REVIEW article

Front. Cell. Infect. Microbiol.
Sec. Microbes and Innate Immunity
Volume 14 - 2024 | doi: 10.3389/fcimb.2024.1403915
This article is part of the Research Topic Metabolic Plasticity Induced by Bacterial Infection in Macrophages View all articles

Revisiting the role of Hypoxia-Inducible Factors and Nuclear factor erythroid 2-related factor 2 in regulating macrophage inflammation and metabolism

Provisionally accepted
  • University Health Network (UHN), Toronto, Canada

The final, formatted version of the article will be published soon.

    The recent birth of the immunometabolism field has comprehensively demonstrated how the rewiring of intracellular metabolism is critical for supporting the effector functions of many immune cell types, such as myeloid cells. Among all, the transcriptional regulation mediated by Hypoxia-Inducible Factors (HIFs) and Nuclear factor erythroid 2-related factor 2 (NRF2) have been consistently shown to play critical roles in regulating the glycolytic metabolism, redox homeostasis and inflammatory responses of macrophages (Mφs). Although both of these transcription factors were first discovered back in the 1990s, new advances in understanding their function and regulations have been continuously made in the context of immunometabolism. Therefore, this review attempts to summarize the traditionally and newly identified functions of these transcription factors, including their roles in orchestrating the key events that take place during glycolytic reprogramming in activated myeloid cells, as well as their roles in mediating Mφ inflammatory responses in various bacterial infection models.

    Keywords: HIF-1a hypoxia-inducible factor-1a, Nrf2, macrophage, LPS, Inflammation, NADPH, Immunometabolism, redox

    Received: 20 Mar 2024; Accepted: 11 Jul 2024.

    Copyright: © 2024 Ting. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Kenneth K. Ting, University Health Network (UHN), Toronto, Canada

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