NAD+ supplementation prevents STING-induced senescence in CD8+ T cells by improving mitochondrial homeostasis
© 2024 Wiley Periodicals LLC..
Understanding the connection between senescence phenotypes and mitochondrial dysfunction is crucial in aging and premature aging diseases. Loss of mitochondrial function leads to a decline in T cell function, which plays a significant role in this process. However, more research is required to determine if improving mitochondrial homeostasis alleviates senescence phenotypes. Our research has shown an association between NAD+ and senescent T cells through the cGAS-STING pathway, which can lead to an inflammatory phenotype. Further research is needed to fully understand the role of NAD+ in T-cell aging and how it can be utilized to improve mitochondrial homeostasis and alleviate senescence phenotypes. We demonstrate here that mitochondrial dysfunction and cellular senescence with a senescence-associated secretory phenotype (SASP) occur in senescent T cells and tumor-bearing mice. Senescence is mediated by a stimulator of interferon genes (STING) and involves ectopic cytoplasmic DNA. We further show that boosting intracellular NAD+ levels with nicotinamide mononucleotide (NMN) prevents senescence and SASP by promoting mitophagy. NMN treatment also suppresses senescence and neuroinflammation and improves the survival cycle of mice. Encouraging mitophagy may be a useful strategy to prevent CD8+ T cells from senescence due to mitochondrial dysfunction. Additionally, supplementing with NMN to increase NAD+ levels could enhance survival rates in mice while also reducing senescence and inflammation, and enhancing mitophagy as a potential therapeutic intervention.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2024 |
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Erschienen: |
2024 |
Enthalten in: |
Zur Gesamtaufnahme - volume:125 |
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Enthalten in: |
Journal of cellular biochemistry - 125(2024), 3 vom: 15. März, Seite e30522 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Ye, Bin [VerfasserIn] |
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Links: |
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Themen: |
0U46U6E8UK |
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Anmerkungen: |
Date Completed 12.03.2024 Date Revised 12.03.2024 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1002/jcb.30522 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM367147335 |
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520 | |a Understanding the connection between senescence phenotypes and mitochondrial dysfunction is crucial in aging and premature aging diseases. Loss of mitochondrial function leads to a decline in T cell function, which plays a significant role in this process. However, more research is required to determine if improving mitochondrial homeostasis alleviates senescence phenotypes. Our research has shown an association between NAD+ and senescent T cells through the cGAS-STING pathway, which can lead to an inflammatory phenotype. Further research is needed to fully understand the role of NAD+ in T-cell aging and how it can be utilized to improve mitochondrial homeostasis and alleviate senescence phenotypes. We demonstrate here that mitochondrial dysfunction and cellular senescence with a senescence-associated secretory phenotype (SASP) occur in senescent T cells and tumor-bearing mice. Senescence is mediated by a stimulator of interferon genes (STING) and involves ectopic cytoplasmic DNA. We further show that boosting intracellular NAD+ levels with nicotinamide mononucleotide (NMN) prevents senescence and SASP by promoting mitophagy. NMN treatment also suppresses senescence and neuroinflammation and improves the survival cycle of mice. Encouraging mitophagy may be a useful strategy to prevent CD8+ T cells from senescence due to mitochondrial dysfunction. Additionally, supplementing with NMN to increase NAD+ levels could enhance survival rates in mice while also reducing senescence and inflammation, and enhancing mitophagy as a potential therapeutic intervention | ||
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700 | 1 | |a Meng, Dehao |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Yu |e verfasserin |4 aut | |
700 | 1 | |a Zou, Shuang |e verfasserin |4 aut | |
700 | 1 | |a Li, Henian |e verfasserin |4 aut | |
700 | 1 | |a Liu, Jinying |e verfasserin |4 aut | |
700 | 1 | |a Xie, Ziying |e verfasserin |4 aut | |
700 | 1 | |a Tian, Changhong |e verfasserin |4 aut | |
700 | 1 | |a Jiang, Yuqi |e verfasserin |4 aut | |
700 | 1 | |a Qiao, Yu |e verfasserin |4 aut | |
700 | 1 | |a Gao, Xu |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Yanfen |e verfasserin |4 aut | |
700 | 1 | |a Ma, Ning |e verfasserin |4 aut | |
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