Aspartate Metabolism Facilitates IL-1β Production in Inflammatory Macrophages
Copyright © 2021 Wang, Zheng, Liu, Xia, Xin, Deng, He, Deng and Ren..
Increasing evidence support that cellular amino acid metabolism shapes the fate of immune cells; however, whether aspartate metabolism dictates macrophage function is still enigmatic. Here, we found that the metabolites in aspartate metabolism are depleted in lipopolysaccharide (LPS) plus interferon gamma (IFN-γ)-stimulated macrophages. Aspartate promotes interleukin-1β (IL-1β) secretion in M1 macrophages. Mechanistically, aspartate boosts the activation of hypoxia-inducible factor-1α (HIF-1α) and inflammasome and increases the levels of metabolites in aspartate metabolism, such as asparagine. Interestingly, asparagine also accelerates the activation of cellular signaling pathways and promotes the production of inflammatory cytokines from macrophages. Moreover, aspartate supplementation augments the macrophage-mediated inflammatory responses in mice and piglets. These results uncover a previously uncharacterized role for aspartate metabolism in directing M1 macrophage polarization.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2021 |
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Erschienen: |
2021 |
Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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Enthalten in: |
Frontiers in immunology - 12(2021) vom: 26., Seite 753092 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Wang, Hao [VerfasserIn] |
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Links: |
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Anmerkungen: |
Date Completed 25.02.2022 Date Revised 25.02.2022 published: Electronic-eCollection Citation Status MEDLINE |
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doi: |
10.3389/fimmu.2021.753092 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM332831698 |
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520 | |a Increasing evidence support that cellular amino acid metabolism shapes the fate of immune cells; however, whether aspartate metabolism dictates macrophage function is still enigmatic. Here, we found that the metabolites in aspartate metabolism are depleted in lipopolysaccharide (LPS) plus interferon gamma (IFN-γ)-stimulated macrophages. Aspartate promotes interleukin-1β (IL-1β) secretion in M1 macrophages. Mechanistically, aspartate boosts the activation of hypoxia-inducible factor-1α (HIF-1α) and inflammasome and increases the levels of metabolites in aspartate metabolism, such as asparagine. Interestingly, asparagine also accelerates the activation of cellular signaling pathways and promotes the production of inflammatory cytokines from macrophages. Moreover, aspartate supplementation augments the macrophage-mediated inflammatory responses in mice and piglets. These results uncover a previously uncharacterized role for aspartate metabolism in directing M1 macrophage polarization | ||
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700 | 1 | |a Deng, Baichuan |e verfasserin |4 aut | |
700 | 1 | |a He, Liuqin |e verfasserin |4 aut | |
700 | 1 | |a Deng, Jinping |e verfasserin |4 aut | |
700 | 1 | |a Ren, Wenkai |e verfasserin |4 aut | |
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