1
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Li N, Flanagan BA, Edmands S. The role of mitochondria in sex- and age-specific gene expression in a species without sex chromosomes. Proc Natl Acad Sci U S A 2024; 121:e2321267121. [PMID: 38838014 PMCID: PMC11181141 DOI: 10.1073/pnas.2321267121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 05/13/2024] [Indexed: 06/07/2024] Open
Abstract
Mitochondria perform an array of functions, many of which involve interactions with gene products encoded by the nucleus. These mitochondrial functions, particularly those involving energy production, can be expected to differ between sexes and across ages. Here, we measured mitochondrial effects on sex- and age-specific gene expression in parental and reciprocal F1 hybrids between allopatric populations of Tigriopus californicus with over 20% mitochondrial DNA divergence. Because the species lacks sex chromosomes, sex-biased mitochondrial effects are not confounded by the effects of sex chromosomes. Results revealed pervasive sex differences in mitochondrial effects, including effects on energetics and aging involving nuclear interactions throughout the genome. Using single-individual RNA sequencing, sex differences were found to explain more than 80% of the variance in gene expression. Males had higher expression of mitochondrial genes and mitochondrially targeted proteins (MTPs) involved in oxidative phosphorylation (OXPHOS), while females had elevated expression of non-OXPHOS MTPs, indicating strongly sex-dimorphic energy metabolism at the whole organism level. Comparison of reciprocal F1 hybrids allowed insights into the nature of mito-nuclear interactions, showing both mitochondrial effects on nuclear expression, and nuclear effects on mitochondrial expression. While based on a small set of crosses, sex-specific increases in mitochondrial expression with age were associated with longer life. Network analyses identified nuclear components of strong mito-nuclear interactions and found them to be sexually dimorphic. These results highlight the profound impact of mitochondria and mito-nuclear interactions on sex- and age-specific gene expression.
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Affiliation(s)
- Ning Li
- Department of Biological Sciences, University of Southern California, Los Angeles, CA90089
| | - Ben A. Flanagan
- Department of Biological Sciences, University of Southern California, Los Angeles, CA90089
| | - Suzanne Edmands
- Department of Biological Sciences, University of Southern California, Los Angeles, CA90089
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2
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Rathor L, Curry S, Park Y, McElroy T, Robles B, Sheng Y, Chen WW, Min K, Xiao R, Lee MH, Han SM. Mitochondrial stress in GABAergic neurons non-cell autonomously regulates organismal health and aging. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.20.585932. [PMID: 38585797 PMCID: PMC10996468 DOI: 10.1101/2024.03.20.585932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Mitochondrial stress within the nervous system can trigger non-cell autonomous responses in peripheral tissues. However, the specific neurons involved and their impact on organismal aging and health have remained incompletely understood. Here, we demonstrate that mitochondrial stress in γ-aminobutyric acid-producing (GABAergic) neurons in Caenorhabditis elegans ( C. elegans ) is sufficient to significantly alter organismal lifespan, stress tolerance, and reproductive capabilities. This mitochondrial stress also leads to significant changes in mitochondrial mass, energy production, and levels of reactive oxygen species (ROS). DAF-16/FoxO activity is enhanced by GABAergic neuronal mitochondrial stress and mediates the induction of these non-cell-autonomous effects. Moreover, our findings indicate that GABA signaling operates within the same pathway as mitochondrial stress in GABAergic neurons, resulting in non-cell-autonomous alterations in organismal stress tolerance and longevity. In summary, these data suggest the crucial role of GABAergic neurons in detecting mitochondrial stress and orchestrating non-cell-autonomous changes throughout the organism.
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3
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Li N, Flanagan BA, Edmands S. The role of mitochondria in sex- and age-specific gene expression in a species without sex chromosomes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.08.570893. [PMID: 38106076 PMCID: PMC10723445 DOI: 10.1101/2023.12.08.570893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Mitochondria perform an array of functions, many of which involve interactions with gene products encoded by the nucleus. These mitochondrial functions, particularly those involving energy production, can be expected to differ between sexes and across ages. Here we measured mitochondrial effects on sex- and age-specific gene expression in parental and reciprocal F1 hybrids between allopatric populations of Tigriopus californicus with over 20% mitochondrial DNA divergence. Because the species lacks sex chromosomes, sex-biased mitochondrial effects are not confounded by the effects of sex chromosomes. Using single-individual RNA sequencing, sex differences were found to explain more than 80% of the variance in gene expression. Males had higher expression of mitochondrial genes and mitochondrially targeted proteins (MTPs) involved in oxidative phosphorylation (OXPHOS), while females had elevated expression of non-OXPHOS MTPs, indicating strongly sex-dimorphic energy metabolism at the whole organism level. Comparison of reciprocal F1 hybrids allowed insights into the nature of mito-nuclear interactions, showing both mitochondrial effects on nuclear expression, as well as nuclear effects on mitochondrial expression. Across both sexes, increases in mitochondrial expression with age were associated with longer life. Network analyses identified nuclear components of strong mito-nuclear interactions, and found them to be sexually dimorphic. These results highlight the profound impact of mitochondria and mito-nuclear interactions on sex- and age-specific gene expression.
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Affiliation(s)
- Ning Li
- Department of Biological Sciences, University of Southern California, 3616 Trousdale Parkway, Los Angeles, CA 90089, USA
| | | | - Suzanne Edmands
- Department of Biological Sciences, University of Southern California, 3616 Trousdale Parkway, Los Angeles, CA 90089, USA
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4
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Chirumbolo S, Bertossi D, Magistretti P. Insights on the role of L-lactate as a signaling molecule in skin aging. Biogerontology 2023; 24:709-726. [PMID: 36708434 PMCID: PMC9883612 DOI: 10.1007/s10522-023-10018-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/17/2023] [Indexed: 01/29/2023]
Abstract
L-lactate is a catabolite from the anaerobic metabolism of glucose, which plays a paramount role as a signaling molecule in various steps of the cell survival. Its activity, as a master tuner of many mechanisms underlying the aging process, for example in the skin, is still presumptive, however its crucial position in the complex cross-talk between mitochondria and the process of cell survival, should suggest that L-lactate may be not a simple waste product but a fine regulator of the aging/survival machinery, probably via mito-hormesis. Actually, emerging evidence is highlighting that ROS are crucial in the signaling of skin health, including mechanisms underlying wound repair, renewal and aging. The ROS, including superoxide anion, hydrogen peroxide, and nitric oxide, play both beneficial and detrimental roles depending upon their levels and cellular microenvironment. Physiological ROS levels are essential for cutaneous health and the wound repair process. Aberrant redox signaling activity drives chronic skin disease in elderly. On the contrary, impaired redox modulation, due to enhanced ROS generation and/or reduced levels of antioxidant defense, suppresses wound healing via promoting lymphatic/vascular endothelial cell apoptosis and death. This review tries to elucidate this issue.
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Affiliation(s)
- Salvatore Chirumbolo
- Department of Neurosciences, Biomedicine and Movement Sciences, Unit of Human Anatomy, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy.
| | - Dario Bertossi
- Department of Surgery, Dentistry, Paediatrics and Gynaecology-Unit of Maxillo-Facial Surgery, University of Verona, Verona, Italy
| | - Pierre Magistretti
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
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5
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High-fructose corn syrup intake increases hepatic mitochondrial DNA copy number and methylation in adolescent rats. Nutr Res 2023; 110:57-65. [PMID: 36682228 DOI: 10.1016/j.nutres.2022.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 12/14/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
High-fructose corn syrup (HFCS) is consumed worldwide. However, it has been demonstrated that an increased intake of sweetened beverages, including those sweetened using fructose, is associated with the development of childhood obesity. It is unknown why the negative effects of fructose are stronger in young persons than in elderly individuals. In recent years, mitochondria have been identified as 1 of the targets of the negative effects of fructose; they possess their own genome called mitochondrial DNA (mtDNA), which encodes genes involved in metabolic functions. We hypothesized that HFCS intake affects mtDNA in the livers of rats, and that the intensity of these effects is age-dependent. The experimental period was divided into 3 parts: childhood and adolescence (postnatal day [PD] 21-60), young adulthood (PD61-100), and adulthood (PD101-140). Rats in the different age groups were assigned to receive either water (control group [CONT]) or a 20% HFCS solution (HFCS). The hepatic mtDNA copy number of the HFCS group was higher than that of the CONT group in childhood and adolescence. In addition, the mtDNA methylation level was increased in the HFCS group in the same experimental period. No significant differences were observed between the CONT and HFCS groups during the other experimental periods. We demonstrated that HFCS has the strongest effect on mtDNA during childhood and adolescence, suggesting a need to analyze the HFCS intake of young people.
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6
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Gherardi G, Corbioli G, Ruzza F, Rizzuto R. CoQ 10 and Resveratrol Effects to Ameliorate Aged-Related Mitochondrial Dysfunctions. Nutrients 2022; 14:4326. [PMID: 36297010 PMCID: PMC9611139 DOI: 10.3390/nu14204326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/16/2022] Open
Abstract
Mitochondria participate in the maintenance of cellular homeostasis. Firstly, mitochondria regulate energy metabolism through oxidative phosphorylation. In addition, they are involved in cell fate decisions by activating the apoptotic intrinsic pathway. Finally, they work as intracellular signaling hubs as a result of their tight regulation of ion and metabolite concentrations and other critical signaling molecules such as ROS. Aging is a multifactorial process triggered by impairments in different cellular components. Among the various molecular pathways involved, mitochondria are key regulators of longevity. Indeed, mitochondrial deterioration is a critical signature of the aging process. In this scenario, we will focus specifically on the age-related decrease in CoQ levels, an essential component of the electron transport chain (ETC) and an antioxidant, and how CoQ supplementation could benefit the aging process. Generally, any treatment that improves and sustains mitochondrial functionality is a good candidate to counteract age-related mitochondrial dysfunctions. In recent years, heightened attention has been given to natural compounds that modulate mitochondrial function. One of the most famous is resveratrol due to its ability to increase mitochondrial biogenesis and work as an antioxidant agent. This review will discuss recent clinical trials and meta-analyses based on resveratrol and CoQ supplementation, focusing on how these compounds could improve mitochondrial functionality during aging.
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Affiliation(s)
- Gaia Gherardi
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Giovanni Corbioli
- Solgar Italia Multinutrient Spa, Via Prima Strada 23/3, 35129 Padova, Italy
| | - Filippo Ruzza
- Solgar Italia Multinutrient Spa, Via Prima Strada 23/3, 35129 Padova, Italy
| | - Rosario Rizzuto
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
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7
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The Legend of ATP: From Origin of Life to Precision Medicine. Metabolites 2022; 12:metabo12050461. [PMID: 35629965 PMCID: PMC9148104 DOI: 10.3390/metabo12050461] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/19/2022] [Accepted: 05/19/2022] [Indexed: 02/05/2023] Open
Abstract
Adenosine triphosphate (ATP) may be the most important biological small molecule. Since it was discovered in 1929, ATP has been regarded as life’s energy reservoir. However, this compound means more to life. Its legend starts at the dawn of life and lasts to this day. ATP must be the basic component of ancient ribozymes and may facilitate the origin of structured proteins. In the existing organisms, ATP continues to construct ribonucleic acid (RNA) and work as a protein cofactor. ATP also functions as a biological hydrotrope, which may keep macromolecules soluble in the primitive environment and can regulate phase separation in modern cells. These functions are involved in the pathogenesis of aging-related diseases and breast cancer, providing clues to discovering anti-aging agents and precision medicine tactics for breast cancer.
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8
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Kovács-Valasek A, Pöstyéni E, Dénes V, Mester A, Sétáló G, Gábriel R. Age-Related Alterations of Proteins in Albino Wistar Rat Retina. Cells Tissues Organs 2021; 210:135-150. [PMID: 34218223 DOI: 10.1159/000515447] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/04/2021] [Indexed: 01/05/2023] Open
Abstract
Imbalance of homeostasis causes permanent changes in the body with time. The central nervous system is especially prone to these changes since it possesses limited regenerative capacity. In the retina, neurons are damaged during the aging process, and this eventually leads to deterioration of vision. In our 2-year-long study, we examined genetically closely related rat individuals to disclose the hidden retinal causes of age-associated visual dysfunction. Morphometric analysis showed significant reduction of the retina thickness with aging, particularly that of the inner plexiform layer. To reveal changes between the age groups, we used immunohistochemistry against vesicular glutamate transporter 1 protein for photoreceptor and bipolar cell terminals, Brn3a for ganglion cells, calbindin 28 kDa for horizontal cells, parvalbumin for AII amacrines, protein kinase Cα for rod bipolar cells, tyrosine hydroxylase for dopaminergic cells, glial fibrillary acidic protein for glial cells, and peanut-agglutinin labeling for cones. The most significant decrease was observed in the density of photoreceptor and the ganglion cells in the aging process. By using immunocytochemistry and western blot technique, we observed that calbindin and vesicular glutamate transporter 1 protein staining do not change much with aging; tyrosine hydroxylase, parvalbumin and calretinin showed the highest immunoreactivity during the midlife period. Most interestingly, the level of glial fibrillary acidic protein also changes similarly to the previously named markers. Our results provide further evidence that protein content is modified at least in some cell populations of the rat retina, and the number of retinal cells declined with aging. We conclude that senescence alone may cause structural and functional damage in the retinal tissue.
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Affiliation(s)
- Andrea Kovács-Valasek
- Department of Experimental Zoology and Neurobiology, Institute of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary.,János Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Etelka Pöstyéni
- Department of Experimental Zoology and Neurobiology, Institute of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Viktória Dénes
- Department of Experimental Zoology and Neurobiology, Institute of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Adrienn Mester
- Department of Experimental Zoology and Neurobiology, Institute of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - György Sétáló
- Department of Medical Biology, Medical School, University of Pécs, Pécs, Hungary.,János Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Róbert Gábriel
- Department of Experimental Zoology and Neurobiology, Institute of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary.,János Szentágothai Research Centre, University of Pécs, Pécs, Hungary
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9
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Shields HJ, Traa A, Van Raamsdonk JM. Beneficial and Detrimental Effects of Reactive Oxygen Species on Lifespan: A Comprehensive Review of Comparative and Experimental Studies. Front Cell Dev Biol 2021; 9:628157. [PMID: 33644065 PMCID: PMC7905231 DOI: 10.3389/fcell.2021.628157] [Citation(s) in RCA: 191] [Impact Index Per Article: 63.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/20/2021] [Indexed: 12/15/2022] Open
Abstract
Aging is the greatest risk factor for a multitude of diseases including cardiovascular disease, neurodegeneration and cancer. Despite decades of research dedicated to understanding aging, the mechanisms underlying the aging process remain incompletely understood. The widely-accepted free radical theory of aging (FRTA) proposes that the accumulation of oxidative damage caused by reactive oxygen species (ROS) is one of the primary causes of aging. To define the relationship between ROS and aging, there have been two main approaches: comparative studies that measure outcomes related to ROS across species with different lifespans, and experimental studies that modulate ROS levels within a single species using either a genetic or pharmacologic approach. Comparative studies have shown that levels of ROS and oxidative damage are inversely correlated with lifespan. While these studies in general support the FRTA, this type of experiment can only demonstrate correlation, not causation. Experimental studies involving the manipulation of ROS levels in model organisms have generally shown that interventions that increase ROS tend to decrease lifespan, while interventions that decrease ROS tend to increase lifespan. However, there are also multiple examples in which the opposite is observed: increasing ROS levels results in extended longevity, and decreasing ROS levels results in shortened lifespan. While these studies contradict the predictions of the FRTA, these experiments have been performed in a very limited number of species, all of which have a relatively short lifespan. Overall, the data suggest that the relationship between ROS and lifespan is complex, and that ROS can have both beneficial or detrimental effects on longevity depending on the species and conditions. Accordingly, the relationship between ROS and aging is difficult to generalize across the tree of life.
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Affiliation(s)
- Hazel J Shields
- Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada.,Metabolic Disorders and Complications Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Annika Traa
- Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada.,Metabolic Disorders and Complications Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Jeremy M Van Raamsdonk
- Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada.,Metabolic Disorders and Complications Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, QC, Canada.,Department of Genetics, Harvard Medical School, Boston, MA, United States
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10
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Liu Z, Leung D, Thrush K, Zhao W, Ratliff S, Tanaka T, Schmitz LL, Smith JA, Ferrucci L, Levine ME. Underlying features of epigenetic aging clocks in vivo and in vitro. Aging Cell 2020; 19:e13229. [PMID: 32930491 PMCID: PMC7576259 DOI: 10.1111/acel.13229] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 07/17/2020] [Accepted: 08/05/2020] [Indexed: 01/22/2023] Open
Abstract
Epigenetic clocks, developed using DNA methylation data, have been widely used to quantify biological aging in multiple tissues/cells. However, many existing epigenetic clocks are weakly correlated with each other, suggesting they may capture different biological processes. We utilize multi-omics data from diverse human tissue/cells to identify shared features across eleven existing epigenetic clocks. Despite the striking lack of overlap in CpGs, multi-omics analysis suggested five clocks (Horvath1, Horvath2, Levine, Hannum, and Lin) share transcriptional associations conserved across purified CD14+ monocytes and dorsolateral prefrontal cortex. The pathways enriched in the shared transcriptional association suggested links between epigenetic aging and metabolism, immunity, and autophagy. Results from in vitro experiments showed that two clocks (Levine and Lin) were accelerated in accordance with two hallmarks of aging-cellular senescence and mitochondrial dysfunction. Finally, using multi-tissue data to deconstruct the epigenetic clock signals, we developed a meta-clock that demonstrated improved prediction for mortality and robustly related to hallmarks of aging in vitro than single clocks.
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Affiliation(s)
- Zuyun Liu
- Department of PathologyYale University School of MedicineNew HavenConnecticutUSA
- Department of Big Data in Health Science, School of Public Health and the Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Diana Leung
- Department of PathologyYale University School of MedicineNew HavenConnecticutUSA
| | - Kyra Thrush
- Department of PathologyYale University School of MedicineNew HavenConnecticutUSA
| | - Wei Zhao
- Department of EpidemiologySchool of Public HealthUniversity of MichiganAnn ArborMichiganUSA
| | - Scott Ratliff
- Department of EpidemiologySchool of Public HealthUniversity of MichiganAnn ArborMichiganUSA
| | - Toshiko Tanaka
- Longitudinal Studies SectionTranslational Gerontology BranchNational Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Lauren L. Schmitz
- Robert M. La Follette School of Public AffairsUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Jennifer A. Smith
- Department of EpidemiologySchool of Public HealthUniversity of MichiganAnn ArborMichiganUSA
| | - Luigi Ferrucci
- Longitudinal Studies SectionTranslational Gerontology BranchNational Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Morgan E. Levine
- Department of PathologyYale University School of MedicineNew HavenConnecticutUSA
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11
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Gaviraghi A, Oliveira MF. A simple and reliable method for longitudinal assessment of untethered mosquito induced flight activity. JOURNAL OF INSECT PHYSIOLOGY 2020; 126:104098. [PMID: 32798499 DOI: 10.1016/j.jinsphys.2020.104098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
Aedes aegypti adult females are key vectors of several arboviruses and flight activity plays a central role in mosquito biology and disease transmission. Available methods to quantify mosquito flight usually require special devices and mostly assess spontaneous locomotor activity at individual level. Here, we developed a new method to determine longitudinal untethered adult A. aegypti induced flight activity: the INduced FLight Activity TEst (INFLATE). This method was an adaptation of the "rapid iterative negative geotaxis" assay to assess locomotor activity in Drosophila and explore the spontaneous behavior of mosquitoes to fly following a physical stimulus. Insects were placed on a plastic cage previously divided in four vertical quadrants and flight performance was carried out by tapping cages towards the laboratory bench. After one minute, the number of insects per quadrant was registered by visual inspection and categorized in five different scores. By using INFLATE, we observed that flight performance was not influenced by repeated testing, sex or 5% ethanol intake. However, induced flight activity was strongly affected by aging, blood meal and inhibition of mitochondrial complex I. This simple and rapid method allows the longitudinal assessment of induced flight activity of multiple untethered mosquitoes and may contribute to a better understanding of A. aegypti dispersal biology.
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Affiliation(s)
- Alessandro Gaviraghi
- Laboratório de Bioquímica de Resposta ao Estresse, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular (INCT-EM), Rio de Janeiro, RJ, Brazil
| | - Marcus F Oliveira
- Laboratório de Bioquímica de Resposta ao Estresse, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular (INCT-EM), Rio de Janeiro, RJ, Brazil.
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12
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Verkhratsky A, Augusto-Oliveira M, Pivoriūnas A, Popov A, Brazhe A, Semyanov A. Astroglial asthenia and loss of function, rather than reactivity, contribute to the ageing of the brain. Pflugers Arch 2020; 473:753-774. [PMID: 32979108 DOI: 10.1007/s00424-020-02465-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/05/2020] [Accepted: 09/09/2020] [Indexed: 12/13/2022]
Abstract
Astroglia represent a class of heterogeneous, in form and function, cells known as astrocytes, which provide for homoeostasis and defence of the central nervous system (CNS). Ageing is associated with morphological and functional remodelling of astrocytes with a prevalence of morphological atrophy and loss of function. In particular, ageing is associated with (i) decrease in astroglial synaptic coverage, (ii) deficits in glutamate and potassium clearance, (iii) reduced astroglial synthesis of synaptogenic factors such as cholesterol, (iv) decrease in aquaporin 4 channels in astroglial endfeet with subsequent decline in the glymphatic clearance, (v) decrease in astroglial metabolic support through the lactate shuttle, (vi) dwindling adult neurogenesis resulting from diminished proliferative capacity of radial stem astrocytes, (vii) decline in the astroglial-vascular coupling and deficient blood-brain barrier and (viii) decrease in astroglial ability to mount reactive astrogliosis. Decrease in reactive capabilities of astroglia are associated with rise of age-dependent neurodegenerative diseases. Astroglial morphology and function can be influenced and improved by lifestyle interventions such as intellectual engagement, social interactions, physical exercise, caloric restriction and healthy diet. These modifications of lifestyle are paramount for cognitive longevity.
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Affiliation(s)
- Alexei Verkhratsky
- Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PT, UK. .,Achucarro Center for Neuroscience, IKERBASQUE, Basque Foundation for Science, 48011, Bilbao, Spain. .,Department of Neurosciences, University of the Basque Country UPV/EHU and CIBERNED, Leioa, Spain.
| | - Marcus Augusto-Oliveira
- Laboratório de Farmacologia Molecular, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, 66075-110, Brazil
| | - Augustas Pivoriūnas
- Department of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, LT-01102, Vilnius, Lithuania
| | - Alexander Popov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya street 16/10, Moscow, Russia, 117997
| | - Alexey Brazhe
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya street 16/10, Moscow, Russia, 117997.,Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Alexey Semyanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya street 16/10, Moscow, Russia, 117997. .,Sechenov First Moscow State Medical University, Moscow, Russia.
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13
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Liu JY, Zhang MY, Qu YQ. The Underlying Role of Mitophagy in Different Regulatory Mechanisms of Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2020; 15:2167-2177. [PMID: 32982209 PMCID: PMC7501977 DOI: 10.2147/copd.s265728] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/12/2020] [Indexed: 12/17/2022] Open
Abstract
COPD is a common disease of the respiratory system. Inflammation, cellular senescence and necroptosis are all pathological alterations of this disease, which may lead to emphysema and infection that aggravate disease progression. Mitochondria acting as respiration-related organelles is usually observed with abnormal changes in morphology and function in CS-stimulated models and COPD patients. Damaged mitochondria can activate mitophagy, a vital mechanism for mitochondrial quality control, whereas under the persistent stimulus of CS or other forms of oxidative stress, mitophagy is impaired, resulting in insufficient clearance of damaged mitochondria. However, the excessive activation of mitophagy also seems to disturb the pathology of COPD. In this review, we demonstrate the variations in mitochondria and mitophagy in CS-induced models and COPD patients and discuss the underlying regulatory mechanism of mitophagy and COPD, including the roles of inflammation, senescence, emphysema and infection.
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Affiliation(s)
- Jian-Yu Liu
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Meng-Yu Zhang
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Yi-Qing Qu
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, People's Republic of China
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14
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Manevski M, Muthumalage T, Devadoss D, Sundar IK, Wang Q, Singh KP, Unwalla HJ, Chand HS, Rahman I. Cellular stress responses and dysfunctional Mitochondrial-cellular senescence, and therapeutics in chronic respiratory diseases. Redox Biol 2020; 33:101443. [PMID: 32037306 PMCID: PMC7251248 DOI: 10.1016/j.redox.2020.101443] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 01/14/2020] [Accepted: 01/22/2020] [Indexed: 02/06/2023] Open
Abstract
The abnormal inflammatory responses due to the lung tissue damage and ineffective repair/resolution in response to the inhaled toxicants result in the pathological changes associated with chronic respiratory diseases. Investigation of such pathophysiological mechanisms provides the opportunity to develop the molecular phenotype-specific diagnostic assays and could help in designing the personalized medicine-based therapeutic approaches against these prevalent diseases. As the central hubs of cell metabolism and energetics, mitochondria integrate cellular responses and interorganellar signaling pathways to maintain cellular and extracellular redox status and the cellular senescence that dictate the lung tissue responses. Specifically, as observed in chronic obstructive pulmonary disease (COPD) and pulmonary fibrosis, the mitochondria-endoplasmic reticulum (ER) crosstalk is disrupted by the inhaled toxicants such as the combustible and emerging electronic nicotine-delivery system (ENDS) tobacco products. Thus, the recent research efforts have focused on understanding how the mitochondria-ER dysfunctions and oxidative stress responses can be targeted to improve inflammatory and cellular dysfunctions associated with these pathologic illnesses that are exacerbated by viral infections. The present review assesses the importance of these redox signaling and cellular senescence pathways that describe the role of mitochondria and ER on the development and function of lung epithelial responses, highlighting the cause and effect associations that reflect the disease pathogenesis and possible intervention strategies.
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Affiliation(s)
- Marko Manevski
- Department of Immunology and NanoMedicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Thivanka Muthumalage
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Dinesh Devadoss
- Department of Immunology and NanoMedicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Isaac K Sundar
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Qixin Wang
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Kameshwar P Singh
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Hoshang J Unwalla
- Department of Immunology and NanoMedicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Hitendra S Chand
- Department of Immunology and NanoMedicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Irfan Rahman
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA.
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15
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Bar-Ziv R, Bolas T, Dillin A. Systemic effects of mitochondrial stress. EMBO Rep 2020; 21:e50094. [PMID: 32449292 DOI: 10.15252/embr.202050094] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/30/2020] [Accepted: 04/17/2020] [Indexed: 12/14/2022] Open
Abstract
Multicellular organisms are complex biological systems, composed of specialized tissues that require coordination of the metabolic and fitness state of each component. In the cells composing the tissues, one central organelle is the mitochondrion, a compartment essential for many energetic and fundamental biological processes. Beyond serving these functions, mitochondria have emerged as signaling hubs in biological systems, capable of inducing changes to the cell they are in, to cells in distal tissues through secreted factors, and to overall animal physiology. Here, we describe our current understanding of these communication mechanisms in the context of mitochondrial stress. We focus on cellular mechanisms that deal with perturbations to the mitochondrial proteome and outline recent advances in understanding how local perturbations can affect distal tissues and animal physiology in model organisms. Finally, we discuss recent findings of these responses associated with metabolic and age-associated diseases in mammalian systems, and how they may be employed as diagnostic and therapeutic tools.
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Affiliation(s)
- Raz Bar-Ziv
- Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA, USA.,University of California, Berkeley, Berkeley, CA, USA
| | - Theodore Bolas
- Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA, USA.,University of California, Berkeley, Berkeley, CA, USA
| | - Andrew Dillin
- Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA, USA.,University of California, Berkeley, Berkeley, CA, USA
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16
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Nolte ED, Nolte KA, Yan SS. Anxiety and task performance changes in an aging mouse model. Biochem Biophys Res Commun 2019; 514:246-251. [PMID: 31029428 DOI: 10.1016/j.bbrc.2019.04.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 04/07/2019] [Indexed: 12/13/2022]
Abstract
Due to the increasing focus on aging as an important risk factor for many serious diseases and an emphasis on animal models that have translational value, an increasing number of animal models are being aged. Animal behavior tests can be used to assess effects of aging in mouse models. Female mice begin exhibiting anxiety-like behaviors at 12 months of age which become more serious at 24 months, while males exhibit no age-induced anxiety-like behaviors. Males and females equally demonstrate a failure of daily task performance at 24 months. Despite these cognitive changes, the mice do not show changes in gross motor function. These results suggest cognitive impairment in non-genetically modified aging mice.
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Affiliation(s)
- Erika D Nolte
- Department of Pharmacology and Toxicology, Higuchi Bioscience Center, University of Kansas, Lawrence, KS 66047, USA
| | - Keith A Nolte
- Department of Pharmacology and Toxicology, Higuchi Bioscience Center, University of Kansas, Lawrence, KS 66047, USA
| | - Shirley ShiDu Yan
- Department of Pharmacology and Toxicology, Higuchi Bioscience Center, University of Kansas, Lawrence, KS 66047, USA.
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17
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Woods DC, Khrapko K, Tilly JL. Influence of Maternal Aging on Mitochondrial Heterogeneity, Inheritance, and Function in Oocytes and Preimplantation Embryos. Genes (Basel) 2018; 9:E265. [PMID: 29883421 PMCID: PMC5977205 DOI: 10.3390/genes9050265] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 12/15/2022] Open
Abstract
Contrasting the equal contribution of nuclear genetic material from maternal and paternal sources to offspring, passage of mitochondria, and thus mitochondrial DNA (mtDNA), is uniparental through the egg. Since mitochondria in eggs are ancestral to all somatic mitochondria of the next generation and to all cells of future generations, oocytes must prepare for the high energetic demands of maturation, fertilization and embryogenesis while simultaneously ensuring that their mitochondrial genomes are inherited in an undamaged state. Although significant effort has been made to understand how the mtDNA bottleneck and purifying selection act coordinately to prevent silent and unchecked spreading of invisible mtDNA mutations through the female germ line across successive generations, it is unknown if and how somatic cells of the immediate next generation are spared from inheritance of detrimental mtDNA molecules. Here, we review unique aspects of mitochondrial activity and segregation in eggs and early embryos, and how these events play into embryonic developmental competency in the face of advancing maternal age.
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Affiliation(s)
- Dori C Woods
- Laboratory for Aging and Infertility Research, Department of Biology, Northeastern University, Boston, MA 02115, USA.
| | - Konstantin Khrapko
- Laboratory for Aging and Infertility Research, Department of Biology, Northeastern University, Boston, MA 02115, USA.
| | - Jonathan L Tilly
- Laboratory for Aging and Infertility Research, Department of Biology, Northeastern University, Boston, MA 02115, USA.
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18
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Mitochondria and Sex-Specific Cardiac Function. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1065:241-256. [PMID: 30051389 DOI: 10.1007/978-3-319-77932-4_16] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The focus of this chapter is the gender differences in mitochondria in cardiovascular disease. There is broad evidence suggesting that some of the gender differences in cardiovascular outcome may be partially related to differences in mitochondrial biology (Ventura-Clapier R, Moulin M, Piquereau J, Lemaire C, Mericskay M, Veksler V, Garnier A, Clin Sci (Lond) 131(9):803-822, 2017)). Mitochondrial disorders are causally affected by mutations in either nuclear or mitochondrial genes involved in the synthesis of respiratory chain subunits or in their posttranslational control. This can be due to mutations of the mtDNA which are transmitted by the mother or mutations in the nuclear DNA. Because natural selection on mitochondria operates only in females, mutations may have had more deleterious effects in males than in females (Ventura-Clapier R, Moulin M, Piquereau J, Lemaire C, Mericskay M, Veksler V, Garnier A, Clin Sci (Lond) 131(9):803-822, 2017; Camara AK, Lesnefsky EJ, Stowe DF. Antioxid Redox Signal 13(3):279-347, 2010). As mitochondrial mutations can affect all tissues, they are responsible for a large panel of pathologies including neuromuscular disorders, encephalopathies, metabolic disorders, cardiomyopathies, neuropathies, renal dysfunction, etc. Many of these pathologies present sex/gender specificity. Thus, alleviating or preventing mitochondrial dysfunction will contribute to mitigating the severity or progression of the development of diseases. Here, we present evidence for the involvement of mitochondria in the sex specificity of cardiovascular disorders.
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19
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Wattiaux JM. CUMULATIVE PARENTAL AGE EFFECTS IN DROSOPHILA SUBOBSCURA. Evolution 2017; 22:406-421. [DOI: 10.1111/j.1558-5646.1968.tb05908.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/1966] [Indexed: 11/29/2022]
Affiliation(s)
- J. M. Wattiaux
- Laboratoire de Génétique F. A. Janssens, Faculté des Sciences Agronomiques; Université de Louvain; Heverlee Belgium
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20
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Abstract
A decline in mitochondrial quality and activity has been associated with normal aging and correlated with the development of a wide range of age-related diseases. Here, we review the evidence that a decline in mitochondria function contributes to aging. In particular, we discuss how mitochondria contribute to specific aspects of the aging process, including cellular senescence, chronic inflammation, and the age-dependent decline in stem cell activity. Signaling pathways regulating the mitochondrial unfolded protein response and mitophagy are also reviewed, with particular emphasis placed on how these pathways might, in turn, regulate longevity. Taken together, these observations suggest that mitochondria influence or regulate a number of key aspects of aging and suggest that strategies directed at improving mitochondrial quality and function might have far-reaching beneficial effects.
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Affiliation(s)
- Nuo Sun
- Center for Molecular Medicine, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Richard J Youle
- Biochemistry Section, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA.
| | - Toren Finkel
- Center for Molecular Medicine, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA.
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21
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Hepple RT. Mitochondrial involvement and impact in aging skeletal muscle. Front Aging Neurosci 2014; 6:211. [PMID: 25309422 PMCID: PMC4159998 DOI: 10.3389/fnagi.2014.00211] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 07/30/2014] [Indexed: 01/07/2023] Open
Abstract
Atrophy is a defining feature of aging skeletal muscle that contributes to progressive weakness and an increased risk of mobility impairment, falls, and physical frailty in very advanced age. Amongst the most frequently implicated mechanisms of aging muscle atrophy is mitochondrial dysfunction. Recent studies employing methods that are well-suited to interrogating intrinsic mitochondrial function find that mitochondrial respiration and reactive oxygen species emission changes are inconsistent between aging rat muscles undergoing atrophy and appear normal in human skeletal muscle from septuagenarian physically active subjects. On the other hand, a sensitization to permeability transition seems to be a general property of atrophying muscle with aging and this effect is even seen in atrophying muscle from physically active septuagenarian subjects. In addition to this intrinsic alteration in mitochondrial function, factors extrinsic to the mitochondria may also modulate mitochondrial function in aging muscle. In particular, recent evidence implicates oxidative stress in the aging milieu as a factor that depresses respiratory function in vivo (an effect that is not present ex vivo). Furthermore, in very advanced age, not only does muscle atrophy become more severe and clinically relevant in terms of its impact, but also there is evidence that this is driven by an accumulation of severely atrophied denervated myofibers. As denervation can itself modulate mitochondrial function and recruit mitochondrial-mediated atrophy pathways, future investigations need to address the degree to which skeletal muscle mitochondrial alterations in very advanced age are a consequence of denervation, rather than a primary organelle defect, to refine our understanding of the relevance of mitochondria as a therapeutic target at this more advanced age.
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Affiliation(s)
- Russell T Hepple
- Department of Kinesiology, McGill University Health Center, McGill University , Montreal, QC , Canada
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22
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Abstract
The specific activity and the activity per fly of four mitochondrial enzymes did not change with ageing in male Drosophila melanogaster (Oregon R). The enzymes assayed were rotenone-insensitive NADH-cytochrome c reductase, adenylate kinase, succinate cytochrome c reductase, and malate dehydrogenase, located in the outer membrane, inner membrane space, inner membrane and matrix, respectively. The specific activity of malate dehydrogenase showed no significant change for young and old head, thorax and abdomen. We conclude that there is no specific site for ageing damage in the mitochondrion, when the enzyme activities in this study are used as an indicator. It should be noted, however, that these enzymes represent only a small percentage of the total enzymes present in mitochondria.
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23
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Panno JP, Nair KK. Age-related chromatin condensation in flight muscle nuclei of the adult male housefly, Musca domestica. Exp Gerontol 1985; 20:341-5. [PMID: 3833545 DOI: 10.1016/0531-5565(85)90014-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Computer analysis of indirect flight muscle nuclei from the adult male housefly, M. domestica, has shown significant change with age in the chromatin condensation pattern. The pattern was analyzed by examining low, medium, and high density chromatin components (LDC, MDC, HDC). No significant change occurred in HDC with age, and the amount and distribution of LDC and MDC remain relatively stable between Day 1 and Day 4 post-eclosion. However, the analysis showed a significant increase in the amount of MDC with a corresponding decrease in the amount of LDC between Day 4 and Day 14. This exchange was accompanied by a significant redistribution of both components. These results are discussed with reference to the biochemical and ultrastructural profile of the flight muscle with age, and to age-related changes in the condensation pattern of specific brain and Malpighian tubule nuclei described earlier.
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24
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Aging in Insects. Biochemistry 1985. [DOI: 10.1016/b978-0-08-030811-1.50024-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
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25
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Norris DM, Moore CL. Lack of dietary delta 7-sterol markedly shortens the periods of locomotor vigor, reproduction and longevity of adult female Xyleborus ferrugineus (Coleoptera, Scolytidae). Exp Gerontol 1980; 15:359-64. [PMID: 7428856 DOI: 10.1016/0531-5565(80)90042-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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26
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Baker GT. Age-dependent alpha-glycerophosphate dehydrogenase activity changes in mutant and wild type Drosophila melanogaster. Mech Ageing Dev 1978; 7:367-73. [PMID: 418273 DOI: 10.1016/0047-6374(78)90078-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The age-related changes in the activity of the extramitochondrial alpha-glycerophosphate dehydrogenase (alpha-GPDH) were compared in two mutants of Drosophila melanogaster, a vestigial-winged and an alpha-glycerophosphate dehydrogenase deficient mutant with that of the wild type. The age-dependent patterns of activity change in both mutants were shown to be identical to that of the wild type. This is in spite of the lack of flight ability in both mutants, the reduced enzyme activity levels in the alpha-glycerophosphate mutant, and in the case of the vestigial flies, of reduced life-span. The results suggest that those mechanisms responsible for the observed aged-related activity changes in alpha-GPDH are intrinsically regulated, independent of functional flight, genetic alteration of specific activity, and life-span.
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27
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Cruz-Landim CD. Degenerative changes in heart muscle from senescent honeybee workers (Apis mellifera adansonii). J Invertebr Pathol 1976. [DOI: 10.1016/0022-2011(76)90022-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Backer GT. Identical age-related patterns of enzyme activity changes in Phormia regina and Drosophila melanogaster. Exp Gerontol 1975; 10:231-7. [PMID: 810357 DOI: 10.1016/0531-5565(75)90037-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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29
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Beezeley AE, McCarthy JL, Sohal RS. Changes in alpha-glycerophosphate, succinic, and malic dehydrogenases in flight muscles of the housefly, Musca domestica, with age. Exp Gerontol 1974; 9:71-4. [PMID: 4842109 DOI: 10.1016/0531-5565(74)90009-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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30
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31
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Ragland SS, Sohal RS. Mating behavior, physical activity and aging in the housefly, Musca domestica. Exp Gerontol 1973; 8:135-45. [PMID: 4724239 DOI: 10.1016/0531-5565(73)90003-x] [Citation(s) in RCA: 83] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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32
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Studies on the appearance of soluble α-glycerophosphate dehydrogenase activity during the development of the sheep blowfly Lucilia. ACTA ACUST UNITED AC 1972. [DOI: 10.1016/0020-1790(72)90034-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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34
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35
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Rockstein M, Gray FH, Berberian PA. Time-correlated neurosecretory changes in the house fly, Musca domestica L. Exp Gerontol 1971; 6:211-7. [PMID: 4106852 DOI: 10.1016/0531-5565(71)90033-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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36
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Sohal RS, Allison VF. Age-related changes in the fine structure of the flight muscle in the house fly. Exp Gerontol 1971; 6:167-72. [PMID: 5562897 DOI: 10.1016/s0531-5565(71)80015-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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37
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38
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Untersuchungen zum Proteinstoffwechsel bei alternden Adultm�nnchen, Larven des Wildtyps und der Letalmutanten (ltr und lme) von Drosophila melanogaster. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 1969. [DOI: 10.1007/bf00297945] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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39
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Simon J, Bhatnagar PL, Milburn NS. An electron microscope study of changes in mitochondria of flight muscle of ageing houseflies (Musca domestica). JOURNAL OF INSECT PHYSIOLOGY 1969; 15:135-140. [PMID: 5795920 DOI: 10.1016/0022-1910(69)90218-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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40
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Tribe MA. Changes taking place in the respiratory efficiency of isolated flight muscle sarcosomes, associated with the age of the blowfly, Calliphora erythrocephala. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY 1967; 23:607-20. [PMID: 4229880 DOI: 10.1016/0010-406x(67)90412-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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41
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Rockstein M, Srivastava PN. Trehalose in the flight muscle of the house fly, Musca domestica L., in relation to age. EXPERIENTIA 1967; 23:636-7. [PMID: 6051687 DOI: 10.1007/bf02144169] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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42
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Tribe M. Age related changes in the respiratory physiology of flight muscle from the blowfly, Calliphora erythrocephala. Exp Gerontol 1967. [DOI: 10.1016/0531-5565(67)90028-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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Bhatnagar PL, Rockstein M, Dauer M. X-irradiation of pupae of the house fly Musca domestica L. and adult survival. Exp Gerontol 1965. [DOI: 10.1016/0531-5565(65)90018-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Zahavi M, Tahori AS. Citric acid accumulation with age in houseflies and other Diptera. JOURNAL OF INSECT PHYSIOLOGY 1965; 11:811-816. [PMID: 5827540 DOI: 10.1016/0022-1910(65)90160-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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45
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ROCKSTEIN M, BHATNAGAR PL. AGE CHANGES IN SIZE AND NUMBER OF THE GIANT MITOCHONDRIA IN THE FLIGHT MUSCLE OF THE COMMON HOUSEFLY (MUSCA DOMESTICA L.). JOURNAL OF INSECT PHYSIOLOGY 1965; 11:481-491. [PMID: 14288376 DOI: 10.1016/0022-1910(65)90053-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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