Mitochondrial stress and mitokines in aging
Abstract Mitokines are signaling molecules that enable communication of local mitochondrial stress to other mitochondria in distant cells and tissues. Among those molecules are FGF21, GDF15 (both expressed in the nucleus) and several mitochondrial‐derived peptides, including humanin. Their responsiveness to mitochondrial stress induces mitokine‐signaling in response for example to exercise, following mitochondrial challenges in skeletal muscle. Such signaling is emerging as an important mediator of exercise‐derived and dietary strategy‐related molecular and systemic health benefits, including healthy aging. A compensatory increase in mitokine synthesis and secretion could preserve mitochondrial function and overall cellular vitality. Conversely, resistance against mitokine actions may also develop. Alterations of mitokine‐levels, and therefore of mitokine‐related inter‐tissue cross talk, are associated with general aging processes and could influence the development of age‐related chronic metabolic, cardiovascular and neurological diseases; whether these changes contribute to aging or represent “rescue factors” remains to be conclusively shown. The aim of the present review is to summarize the expanding knowledge on mitokines, the potential to modulate them by lifestyle and their involvement in aging and age‐related diseases. We highlight the importance of well‐balanced mitokine‐levels, the preventive and therapeutic properties of maintaining mitokine homeostasis and sensitivity of mitokine signaling but also the risks arising from the dysregulation of mitokines. While reduced mitokine levels may impair inter‐organ crosstalk, also excessive mitokine concentrations can have deleterious consequences and are associated with conditions such as cancer and heart failure. Preservation of healthy mitokine signaling levels can be achieved by regular exercise and is associated with an increased lifespan..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:22 |
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| Enthalten in: |
Aging Cell - 22(2023), 2 |
| Beteiligte Personen: |
Burtscher, Johannes [VerfasserIn] |
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| Anmerkungen: |
Copyright © 2023 The Anatomical Society and John Wiley & Sons Ltd |
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| Umfang: |
18 |
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| doi: |
10.1111/acel.13770 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Abstract Mitokines are signaling molecules that enable communication of local mitochondrial stress to other mitochondria in distant cells and tissues. Among those molecules are FGF21, GDF15 (both expressed in the nucleus) and several mitochondrial‐derived peptides, including humanin. Their responsiveness to mitochondrial stress induces mitokine‐signaling in response for example to exercise, following mitochondrial challenges in skeletal muscle. Such signaling is emerging as an important mediator of exercise‐derived and dietary strategy‐related molecular and systemic health benefits, including healthy aging. A compensatory increase in mitokine synthesis and secretion could preserve mitochondrial function and overall cellular vitality. Conversely, resistance against mitokine actions may also develop. Alterations of mitokine‐levels, and therefore of mitokine‐related inter‐tissue cross talk, are associated with general aging processes and could influence the development of age‐related chronic metabolic, cardiovascular and neurological diseases; whether these changes contribute to aging or represent “rescue factors” remains to be conclusively shown. The aim of the present review is to summarize the expanding knowledge on mitokines, the potential to modulate them by lifestyle and their involvement in aging and age‐related diseases. We highlight the importance of well‐balanced mitokine‐levels, the preventive and therapeutic properties of maintaining mitokine homeostasis and sensitivity of mitokine signaling but also the risks arising from the dysregulation of mitokines. While reduced mitokine levels may impair inter‐organ crosstalk, also excessive mitokine concentrations can have deleterious consequences and are associated with conditions such as cancer and heart failure. Preservation of healthy mitokine signaling levels can be achieved by regular exercise and is associated with an increased lifespan. | ||
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| 700 | 1 | |a Visavadiya, Nishant P. |4 aut | |
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| 700 | 1 | |a Millet, Grégoire P. |4 aut | |
| 700 | 1 | |a Khoramipour, Kayvan |4 aut | |
| 700 | 1 | |a Khamoui, Andy V. |4 aut | |
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