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Burtscher J, Soltany A, Visavadiya NP, Burtscher M, Millet GP, Khoramipour K, Khamoui AV. Mitochondrial stress and mitokines in aging. Aging Cell 2023; 22:e13770. [PMID: 36642986 PMCID: PMC9924952 DOI: 10.1111/acel.13770] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/08/2022] [Accepted: 12/20/2022] [Indexed: 01/17/2023] Open
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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Affiliation(s)
- Johannes Burtscher
- Institute of Sport SciencesUniversity of LausanneLausanneSwitzerland,Department of Biomedical SciencesUniversity of LausanneLausanneSwitzerland
| | - Afsaneh Soltany
- Department of Biology, Faculty of ScienceUniversity of ShirazShirazIran
| | - Nishant P. Visavadiya
- Department of Exercise Science and Health PromotionFlorida Atlantic UniversityBoca RatonFloridaUSA
| | - Martin Burtscher
- Department of Sport ScienceUniversity of InnsbruckInnsbruckAustria
| | - Grégoire P. Millet
- Institute of Sport SciencesUniversity of LausanneLausanneSwitzerland,Department of Biomedical SciencesUniversity of LausanneLausanneSwitzerland
| | - Kayvan Khoramipour
- Department of Physiology and Pharmacology, Neuroscience Research Center, Institute of Neuropharmacology, and Afzalipour School of MedicineKerman University of Medical SciencesKermanIran
| | - Andy V. Khamoui
- Department of Exercise Science and Health PromotionFlorida Atlantic UniversityBoca RatonFloridaUSA
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Abstract
The analogy of mitochondria as powerhouses has expired. Mitochondria are living, dynamic, maternally inherited, energy-transforming, biosynthetic, and signaling organelles that actively transduce biological information. We argue that mitochondria are the processor of the cell, and together with the nucleus and other organelles they constitute the mitochondrial information processing system (MIPS). In a three-step process, mitochondria (1) sense and respond to both endogenous and environmental inputs through morphological and functional remodeling; (2) integrate information through dynamic, network-based physical interactions and diffusion mechanisms; and (3) produce output signals that tune the functions of other organelles and systemically regulate physiology. This input-to-output transformation allows mitochondria to transduce metabolic, biochemical, neuroendocrine, and other local or systemic signals that enhance organismal adaptation. An explicit focus on mitochondrial signal transduction emphasizes the role of communication in mitochondrial biology. This framework also opens new avenues to understand how mitochondria mediate inter-organ processes underlying human health.
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Affiliation(s)
- Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY 10032, USA; New York State Psychiatric Institute, New York, NY 10032, USA.
| | - Orian S Shirihai
- Department of Medicine, Endocrinology, and Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Metabolism Theme, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
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Barzegari A, Aaboulhassanzadeh S, Landon R, Gueguen V, Meddahi-Pellé A, Parvizpour S, Anagnostou F, Pavon-Djavid G. Mitohormesis and mitochondrial dynamics in the regulation of stem cell fate. J Cell Physiol 2022; 237:3435-3448. [PMID: 35775725 DOI: 10.1002/jcp.30820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 11/11/2022]
Abstract
The ability of stem cells for self-renewing, differentiation, and regeneration of injured tissues is believed to occur via the hormetic modulation of nuclear/mitochondrial signal transductions. The evidence now indicates that in damaged tissues, the mitochondria set off the alarm under oxidative stress conditions, hence they are the central regulators of stem cell fate decisions. This review aimed to provide an update to a broader concept of stem cell fate in stress conditions of damaged tissues, and insights for the mitochondrial hormesis (mitohormesis), including the integrated stress response (ISR), mitochondrial dynamics, mitochondria uncoupling, unfolded protein response, and mitokines, with implications for the control of stem cells programing in a successful clinical cell therapy.
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Affiliation(s)
- Abolfazl Barzegari
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sobhan Aaboulhassanzadeh
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rebecca Landon
- CNRS UMR7052-INSERM U1271, Laboratory of Osteoarticular Biology, Bioengineering and Bioimaging, Paris Diderot University, Paris, France
| | - Virginie Gueguen
- Université Sorbonne Paris Nord, INSERM U1148, Laboratory for Vascular Translational Science, Cardiovascular Bioengineering, Villetaneuse, France
| | - Anne Meddahi-Pellé
- Université Sorbonne Paris Nord, INSERM U1148, Laboratory for Vascular Translational Science, Cardiovascular Bioengineering, Villetaneuse, France
| | - Sepideh Parvizpour
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fani Anagnostou
- CNRS UMR7052-INSERM U1271, Laboratory of Osteoarticular Biology, Bioengineering and Bioimaging, Paris Diderot University, Paris, France
| | - Graciela Pavon-Djavid
- Université Sorbonne Paris Nord, INSERM U1148, Laboratory for Vascular Translational Science, Cardiovascular Bioengineering, Villetaneuse, France
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Welchen E, Gonzalez DH. Breaking boundaries: exploring short- and long-distance mitochondrial signalling in plants. New Phytol 2021; 232:494-501. [PMID: 34255867 DOI: 10.1111/nph.17614] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/29/2021] [Indexed: 05/20/2023]
Abstract
Communication of mitochondria with other cell compartments is essential for the coordination of cellular functions. Mitochondria send retrograde signals through metabolites, redox changes, direct organelle contacts and protein trafficking. Accumulating evidence indicates that, in animal systems, changes in mitochondrial function also trigger responses in other, either neighbouring or distantly located, cells. Although not clearly established, there are indications that this type of communication may also be operative in plants. Grafting experiments suggested that the translocation of entire mitochondria or submitochondrial vesicles between neighbouring cells is possible in plants, as already documented in animals. Changes in mitochondrial function also regulate cell-to-cell communication via plasmodesmata and may be transmitted over long distances through plant hormones acting as mitokines to relay mitochondrial signals to distant tissues. Long-distance movement of transcripts encoding mitochondrial proteins involved in crucial aspects of metabolism and retrograde signalling was also described. Finally, changes in mitochondrial reactive species (ROS) production may affect the 'ROS wave' that triggers systemic acquired acclimation throughout the plant. In this review, we summarise available evidence suggesting that mitochondria establish sophisticated communications not only within the cell but also with neighbouring cells and distant tissues to coordinate plant growth and stress responses in a cell nonautonomous manner.
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Affiliation(s)
- Elina Welchen
- Facultad de Bioquímica y Ciencias Biológicas, Instituto de Agrobiotecnología del Litoral (CONICET-UNL), Cátedra de Biología Celular y Molecular, Universidad Nacional del Litoral, Santa Fe, 3000, Argentina
| | - Daniel H Gonzalez
- Facultad de Bioquímica y Ciencias Biológicas, Instituto de Agrobiotecnología del Litoral (CONICET-UNL), Cátedra de Biología Celular y Molecular, Universidad Nacional del Litoral, Santa Fe, 3000, Argentina
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Romanello V. The Interplay between Mitochondrial Morphology and Myo mitokines in Aging Sarcopenia. Int J Mol Sci 2020; 22:E91. [PMID: 33374852 DOI: 10.3390/ijms22010091] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 12/13/2022] Open
Abstract
Sarcopenia is a chronic disease characterized by the progressive loss of skeletal muscle mass, force, and function during aging. It is an emerging public problem associated with poor quality of life, disability, frailty, and high mortality. A decline in mitochondria quality control pathways constitutes a major mechanism driving aging sarcopenia, causing abnormal organelle accumulation over a lifetime. The resulting mitochondrial dysfunction in sarcopenic muscles feedbacks systemically by releasing the myomitokines fibroblast growth factor 21 (FGF21) and growth and differentiation factor 15 (GDF15), influencing the whole-body homeostasis and dictating healthy or unhealthy aging. This review describes the principal pathways controlling mitochondrial quality, many of which are potential therapeutic targets against muscle aging, and the connection between mitochondrial dysfunction and the myomitokines FGF21 and GDF15 in the pathogenesis of aging sarcopenia.
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Ajaz S, McPhail MJ, Singh KK, Mujib S, Trovato FM, Napoli S, Agarwal K. Mitochondrial metabolic manipulation by SARS-CoV-2 in peripheral blood mononuclear cells of patients with COVID-19. Am J Physiol Cell Physiol 2020; 320:C57-C65. [PMID: 33151090 PMCID: PMC7816428 DOI: 10.1152/ajpcell.00426.2020] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The COVID-19 pandemic has been the primary global health issue since its outbreak in December 2019. Patients with metabolic syndrome suffer from severe complications and a higher mortality rate due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We recently proposed that SARS-CoV-2 can hijack host mitochondrial function and manipulate metabolic pathways for their own advantage. The aim of the current study was to investigate functional mitochondrial changes in live peripheral blood mononuclear cells (PBMCs) from patients with COVID-19 and to decipher the pathways of substrate utilization in these cells and corresponding changes in the inflammatory pathways. We demonstrate mitochondrial dysfunction, metabolic alterations with an increase in glycolysis, and high levels of mitokine in PBMCs from patients with COVID-19. Interestingly, we found that levels of fibroblast growth factor 21 mitokine correlate with COVID-19 disease severity and mortality. These data suggest that patients with COVID-19 have a compromised mitochondrial function and an energy deficit that is compensated by a metabolic switch to glycolysis. This metabolic manipulation by SARS-CoV-2 triggers an enhanced inflammatory response that contributes to the severity of symptoms in COVID-19. Targeting mitochondrial metabolic pathway(s) can help define novel strategies for COVID-19.
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Affiliation(s)
- Saima Ajaz
- Institute of Liver Studies, Kings College Hospital, London, United Kingdom
| | - Mark J McPhail
- Institute of Liver Studies, Kings College Hospital, London, United Kingdom
| | - Keshav K Singh
- Department of Genetics, School of Medicine, The University of Alabama at Birmingham, Birmingham, Alabama
| | - Salma Mujib
- Institute of Liver Studies, Kings College Hospital, London, United Kingdom
| | | | - Salvatore Napoli
- Institute of Liver Studies, Kings College Hospital, London, United Kingdom
| | - Kosh Agarwal
- Institute of Liver Studies, Kings College Hospital, London, United Kingdom
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Martucci M, Conte M, Ostan R, Chiariello A, Miele F, Franceschi C, Salvioli S, Santoro A, Provini F. Both objective and paradoxical insomnia elicit a stress response involving mitokine production. Aging (Albany NY) 2020; 12:10497-10505. [PMID: 32420904 PMCID: PMC7346035 DOI: 10.18632/aging.103274] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/28/2020] [Indexed: 01/02/2023]
Abstract
Chronic insomnia is the most common sleep disorder in the elderly population. From 9 to 50% of patients suffer of paradoxical insomnia, with the same symptoms and ailments, though characterized by normal sleep patterns. We have investigated the level of parameters related to stress in a group of post-menopausal female patients (age range 55-70 years) suffering by either objective or paradoxical insomnia, in particular we have measured 24-hours urinary cortisol, allostatic load index, Perceived Stress Scale (PSS) score, and, for the first time, mitokines (mitochondrial stress response molecules) such as FGF21, GDF15 and Humanin (HN). Results show that the two groups are different as far as sleep efficiency score, as expected, but not for stress parameters, that in some cases resulted within the normality range, although quite close to the top threshold (such as cortisol) or much higher with respect to normality ranges (such as PSS). Therefore, the consequences of paradoxical insomnia on the expression of these parameters are the same as objective insomnia. As far as the level of mitokines, we showed that FGF21 and HN in particular resulted altered (decreased and increased, respectively) with respect to control population, however with no difference between the two groups of patients.
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Affiliation(s)
- Morena Martucci
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Maria Conte
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.,Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy
| | - Rita Ostan
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Antonio Chiariello
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Filomena Miele
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Claudio Franceschi
- Laboratory of Systems Medicine of Healthy Aging and Department of Applied Mathematics, Lobachevsky University, Nizhny Novgorod, Russia
| | - Stefano Salvioli
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.,Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy
| | - Aurelia Santoro
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Federica Provini
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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