1
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Jawla N, Kar R, Patil VS, Arimbasseri GA. Inherent metabolic preferences differentially regulate the sensitivity of Th1 and Th2 cells to ribosome-inhibiting antibiotics. Immunology 2024. [PMID: 39263985 DOI: 10.1111/imm.13860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 08/13/2024] [Indexed: 09/13/2024] Open
Abstract
Mitochondrial translation is essential to maintain mitochondrial function and energy production. Mutations in genes associated with mitochondrial translation cause several developmental disorders, and immune dysfunction is observed in many such patients. Besides genetic mutations, several antibiotics targeting bacterial ribosomes are well-established to inhibit mitochondrial translation. However, the effect of such antibiotics on different immune cells is not fully understood. Here, we addressed the differential effect of mitochondrial translation inhibition on different subsets of helper T cells (Th) of mice and humans. Inhibition of mitochondrial translation reduced the levels of mitochondrially encoded electron transport chain subunits without affecting their nuclear-encoded counterparts. As a result, mitochondrial oxygen consumption reduced dramatically, but mitochondrial mass was unaffected. Most importantly, we show that inhibition of mitochondrial translation induced apoptosis, specifically in Th2 cells. This increase in apoptosis was associated with higher expression of Bim and Puma, two activators of the intrinsic pathway of apoptosis. We propose that this difference in the sensitivity of Th1 and Th2 cells to mitochondrial translation inhibition reflects the intrinsic metabolic demands of these subtypes. Though Th1 and Th2 cells exhibit similar levels of oxidative phosphorylation, Th1 cells exhibit higher levels of aerobic glycolysis than Th2 cells. Moreover, Th1 cells are more sensitive to the inhibition of glycolysis, while higher concentrations of glycolysis inhibitor 2-deoxyglucose are required to induce cell death in the Th2 lineage. These observations reveal that selection of metabolic pathways for substrate utilization during differentiation of Th1 and Th2 lineages is a fundamental process conserved across species.
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Affiliation(s)
- Neha Jawla
- Molecular Genetics Laboratory, National Institute of Immunology, New Delhi, India
| | - Raunak Kar
- Immuno Genomics Laboratory, National Institute of Immunology, New Delhi, India
| | - Veena S Patil
- Immuno Genomics Laboratory, National Institute of Immunology, New Delhi, India
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2
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Zhang T, Jing M, Fei L, Zhang Z, Yi P, Sun Y, Wang Y. Tetramethylpyrazine nitrone delays the aging process of C. elegans by improving mitochondrial function through the AMPK/mTORC1 signaling pathway. Biochem Biophys Res Commun 2024; 723:150220. [PMID: 38850811 DOI: 10.1016/j.bbrc.2024.150220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 05/23/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Aging is characterized as the process of functional decline in an organism from adulthood, often marked by a progressive loss of cellular function and systemic deterioration of multiple tissues. Among the numerous molecular, cellular, and systemic hallmarks associated with aging, mitochondrial dysfunction is considered one of the pivotal factors that initiates the aging process. During aging, mitochondria undergo varying degrees of damage, resulting in impaired energy production and disruption of the homeostatic regulation of mitochondrial quality control systems, which in turn affects cellular energy metabolism and results in cellular dysfunction, accelerating the aging process. AMP-activated protein kinase (AMPK) and the mechanistic target of rapamycin complex 1 (mTORC1) are two central kinase complexes responsible for sensing intracellular nutrient levels, regulating metabolic homeostasis, modulating aging and play a crucial role in maintaining the homeostatic balance of mitochondria. Our previous studies found that the novel compound tetramethylpyrazine nitrone (TBN) can protect mitochondria via the AMPK/mTOR pathway in many animal models, extending healthy lifespan through the Nrf2 signaling pathway in nematodes. Building upon this foundation, we have posited a reasonable hypothesis, TBN can improve mitochondrial function to delay aging by regulating the AMPK/mTORC1 signaling pathway. This study focuses on the C. elegans, exploring the impact and underlying mechanisms of TBN on aging and mitochondrial function (especially the mitochondrial quality control system) during the aging process. The present studies demonstrated that TBN extends lifespan of wild-type nematodes and is associated with the AMPK/mTORC1 signaling pathway. TBN elevated ATP and NAD+ levels in aging nematodes while orchestrating mitochondrial biogenesis and mitophagy. Moreover, TBN was observed to significantly enhance normal activities during aging in C. elegans, such as mobility and pharyngeal pumping, concurrently impeding lipofuscin accumulation that were closely associated with AMPK and mTORC1. This study not only highlights the delayed effects of TBN on aging but also underscores its potential application in strategies aimed at improving mitochondrial function via the AMPK/mTOR pathway in C. elegans.
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Affiliation(s)
- Ting Zhang
- Institute of New Drug Research, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases and State Key Laboratory of Bioactive Molecules and Drug Ability Assessment, Jinan University College of Pharmacy, Guangzhou, 510632, China
| | - Mei Jing
- Institute of New Drug Research, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases and State Key Laboratory of Bioactive Molecules and Drug Ability Assessment, Jinan University College of Pharmacy, Guangzhou, 510632, China
| | - Lili Fei
- Institute of New Drug Research, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases and State Key Laboratory of Bioactive Molecules and Drug Ability Assessment, Jinan University College of Pharmacy, Guangzhou, 510632, China
| | - Zaijun Zhang
- Institute of New Drug Research, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases and State Key Laboratory of Bioactive Molecules and Drug Ability Assessment, Jinan University College of Pharmacy, Guangzhou, 510632, China
| | - Peng Yi
- Institute of New Drug Research, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases and State Key Laboratory of Bioactive Molecules and Drug Ability Assessment, Jinan University College of Pharmacy, Guangzhou, 510632, China.
| | - Yewei Sun
- Institute of New Drug Research, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases and State Key Laboratory of Bioactive Molecules and Drug Ability Assessment, Jinan University College of Pharmacy, Guangzhou, 510632, China.
| | - Yuqiang Wang
- Institute of New Drug Research, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases and State Key Laboratory of Bioactive Molecules and Drug Ability Assessment, Jinan University College of Pharmacy, Guangzhou, 510632, China
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3
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Tataridas-Pallas N, Aman Y, Williams R, Chapman H, Cheng KJ, Gomez-Paredes C, Bates GP, Labbadia J. Mitochondrial clearance and increased HSF-1 activity are coupled to promote longevity in fasted Caenorhabditis elegans. iScience 2024; 27:109834. [PMID: 38784016 PMCID: PMC11112483 DOI: 10.1016/j.isci.2024.109834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 03/27/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024] Open
Abstract
Fasting has emerged as a potent means of preserving tissue function with age in multiple model organisms. However, our understanding of the relationship between food removal and long-term health is incomplete. Here, we demonstrate that in the nematode worm Caenorhabditis elegans, a single period of early-life fasting is sufficient to selectively enhance HSF-1 activity, maintain proteostasis capacity and promote longevity without compromising fecundity. These effects persist even when food is returned, and are dependent on the mitochondrial sirtuin, SIR-2.2 and the H3K27me3 demethylase, JMJD-3.1. We find that increased HSF-1 activity upon fasting is associated with elevated SIR-2.2 levels, decreased mitochondrial copy number and reduced H3K27me3 levels at the promoters of HSF-1 target genes. Furthermore, consistent with our findings in worms, HSF-1 activity is also enhanced in muscle tissue from fasted mice, suggesting that the potentiation of HSF-1 is a conserved response to food withdrawal.
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Affiliation(s)
- Nikolaos Tataridas-Pallas
- Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, Division of Biosciences, University College London, London WC1E 6BT, UK
| | - Yahyah Aman
- Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, Division of Biosciences, University College London, London WC1E 6BT, UK
| | - Rhianna Williams
- Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, Division of Biosciences, University College London, London WC1E 6BT, UK
| | - Hannah Chapman
- Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, Division of Biosciences, University College London, London WC1E 6BT, UK
| | - Kevin J.H. Cheng
- Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, Division of Biosciences, University College London, London WC1E 6BT, UK
| | - Casandra Gomez-Paredes
- Huntington’s Disease Centre, Department of Neurodegenerative Disease and UK Dementia Research Institute at UCL, Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Gillian P. Bates
- Huntington’s Disease Centre, Department of Neurodegenerative Disease and UK Dementia Research Institute at UCL, Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
| | - John Labbadia
- Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, Division of Biosciences, University College London, London WC1E 6BT, UK
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4
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Vodičková A, Müller-Eigner A, Okoye CN, Bischer AP, Horn J, Koren SA, Selim NA, Wojtovich AP. Mitochondrial energy state controls AMPK-mediated foraging behavior in C. elegans. SCIENCE ADVANCES 2024; 10:eadm8815. [PMID: 38630817 PMCID: PMC11023558 DOI: 10.1126/sciadv.adm8815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/14/2024] [Indexed: 04/19/2024]
Abstract
Organisms surveil and respond to their environment using behaviors entrained by metabolic cues that reflect food availability. Mitochondria act as metabolic hubs and at the center of mitochondrial energy production is the protonmotive force (PMF), an electrochemical gradient generated by metabolite consumption. The PMF serves as a central integrator of mitochondrial status, but its role in governing metabolic signaling is poorly understood. We used optogenetics to dissipate the PMF in Caenorhabditis elegans tissues to test its role in food-related behaviors. Our data demonstrate that PMF reduction in the intestine is sufficient to initiate locomotor responses to acute food deprivation. This behavioral adaptation requires the cellular energy regulator AMP-activated protein kinase (AMPK) in neurons, not in the intestine, and relies on mitochondrial dynamics and axonal trafficking. Our results highlight a role for intestinal PMF as an internal metabolic cue, and we identify a bottom-up signaling axis through which changes in the PMF trigger AMPK activity in neurons to promote foraging behavior.
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Affiliation(s)
- Anežka Vodičková
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Annika Müller-Eigner
- Research Group Epigenetics, Metabolism and Longevity, Research Institute for Farm Animal Biology (FBN), Dummerstorf 18196, Germany
| | - Chidozie N. Okoye
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Andrew P. Bischer
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Jacob Horn
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Shon A. Koren
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Nada Ahmed Selim
- Department of Pharmacology and Physiology, University of Rochester Medical Center, Rochester, NY, USA
| | - Andrew P. Wojtovich
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, NY, USA
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5
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Campbell D, Zuryn S. The mechanisms and roles of mitochondrial dynamics in C. elegans. Semin Cell Dev Biol 2024; 156:266-275. [PMID: 37919144 DOI: 10.1016/j.semcdb.2023.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 10/15/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
If mitochondria are the powerhouses of the cell, then mitochondrial dynamics are the power grid that regulates how that energy output is directed and maintained in response to unique physiological demands. Fission and fusion dynamics are highly regulated processes that fine-tune the mitochondrial networks of cells to enable appropriate responses to intrinsic and extrinsic stimuli, thereby maintaining cellular and organismal homeostasis. These dynamics shape many aspects of an organism's healthspan including development, longevity, stress resistance, immunity, and response to disease. In this review, we discuss the latest findings regarding the mechanisms and roles of mitochondrial dynamics by focussing on the nematode Caenorhabditis elegans. Whole live-animal studies in C. elegans have enabled a true organismal-level understanding of the impact that mitochondrial dynamics play in homeostasis over a lifetime.
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Affiliation(s)
- Daniel Campbell
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Steven Zuryn
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia.
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6
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Onraet T, Zuryn S. C. elegans as a model to study mitochondrial biology and disease. Semin Cell Dev Biol 2024; 154:48-58. [PMID: 37149409 DOI: 10.1016/j.semcdb.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/18/2023] [Accepted: 04/26/2023] [Indexed: 05/08/2023]
Abstract
Mitochondria perform a myriad of essential functions that ensure organismal homeostasis, including maintaining bioenergetic capacity, sensing and signalling the presence of pathogenic threats, and determining cell fate. Their function is highly dependent on mitochondrial quality control and the appropriate regulation of mitochondrial size, shape, and distribution during an entire lifetime, as well as their inheritance across generations. The roundworm Caenorhabditis elegans has emerged as an ideal model organism through which to study mitochondria. The remarkable conservation of mitochondrial biology has allowed C. elegans researchers to investigate complex processes that are challenging to study in higher organisms. In this review, we explore the key recent contributions of C. elegans to mitochondrial biology through the lens of mitochondrial dynamics, organellar removal, and mitochondrial inheritance, as well as their involvement in immune responses, various types of stress, and transgenerational signalling.
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Affiliation(s)
- Tessa Onraet
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane 4072, Australia
| | - Steven Zuryn
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane 4072, Australia.
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7
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Parkhitko AA, Filine E, Tatar M. Combinatorial interventions in aging. NATURE AGING 2023; 3:1187-1200. [PMID: 37783817 PMCID: PMC11194689 DOI: 10.1038/s43587-023-00489-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 08/15/2023] [Indexed: 10/04/2023]
Abstract
Insight on the underlying mechanisms of aging will advance our ability to extend healthspan, treat age-related pathology and improve quality of life. Multiple genetic and pharmacological manipulations extend longevity in different species, yet monotherapy may be relatively inefficient, and we have limited data on the effect of combined interventions. Here we summarize interactions between age-related pathways and discuss strategies to simultaneously retard these in different organisms. In some cases, combined manipulations additively increase their impact on common hallmarks of aging and lifespan, suggesting they quantitatively participate within the same pathway. In other cases, interactions affect different hallmarks, suggesting their joint manipulation may independently maximize their effects on lifespan and healthy aging. While most interaction studies have been conducted with invertebrates and show varying levels of translatability, the conservation of pro-longevity pathways offers an opportunity to identify 'druggable' targets relevant to multiple human age-associated pathologies.
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Affiliation(s)
- Andrey A Parkhitko
- Aging Institute of UPMC and the University of Pittsburgh, Pittsburgh, PA, USA.
| | - Elizabeth Filine
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Marc Tatar
- Department of Ecology, Evolution and Organismal Biology, Brown University, Providence, RI, USA.
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8
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Chandra K, Swathi M, Keerthana B, Gopan S, Ghantasala JP, Joshi MB, Thondamal M, Parsa KVL. PHLPP1 regulates PINK1-parkin signalling and life span. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166718. [PMID: 37060964 DOI: 10.1016/j.bbadis.2023.166718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 04/17/2023]
Abstract
Adaptability to intracellular or extracellular cues is essential for maintaining cellular homeostasis. Metabolic signals intricately control the morphology and functions of mitochondria by regulating bioenergetics and metabolism. Here, we describe the involvement of PHLPP1, a Ser/Thr phosphatase, in mitochondrial homeostasis. Microscopic analysis showed the enhanced globular structure of mitochondria in PHLPP1-depleted HEK 293T and C2C12 cells, while forced expression of PHLPP1 promoted mitochondrial tubularity. We show that PHLPP1 promoted pro-fusion markers MFN2 and p-DRP1Ser637 levels using over-expression and knockdown strategies. Contrastingly, PHLPP1 induced mitochondrial fragmentation by augmenting pro-fission markers, t-DRP1 and pDrp1Ser616 upon mitochondrial stress. At the molecular level, PHLPP1 interacted with and caused dephosphorylation of calcineurin, a p-DRP1Ser637 phosphatase, under basal conditions. Likewise, PHLPP1 dimerized with PINK1 under basal conditions. However, the interaction of PHLPP1 with both calcineurin and PINK1 was impaired upon CCCP and oligomycin-induced mitochondrial stress. Interestingly, upon mitochondrial membrane depolarization, PHLPP1 promoted PINK1 stabilization and parkin recruitment to mitochondria, and thereby activated the mitophagy machinery providing a molecular explanation for the dual effects of PHLPP1 on mitochondria under different conditions. Consistent with our in-vitro findings, depletion of phlp-2, ortholog of PHLPP1 in C. elegans, led to mitochondrial fission under basal conditions, extended the lifespan of the worms, and enhanced survival of worms subjected to paraquat-induced oxidative stress.
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Affiliation(s)
- Kanika Chandra
- Centre for Innovation in Molecular and Pharmaceutical Sciences (CIMPS), Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India; Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - M Swathi
- Centre for Innovation in Molecular and Pharmaceutical Sciences (CIMPS), Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India
| | - B Keerthana
- Centre for Innovation in Molecular and Pharmaceutical Sciences (CIMPS), Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India; Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Sooraj Gopan
- Centre for Innovation in Molecular and Pharmaceutical Sciences (CIMPS), Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India
| | | | - Manjunath B Joshi
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Manjunatha Thondamal
- Department of Biotechnology, GITAM School of Technology, Gandhi Institute of Technology and Management (GITAM) (Deemed to be University), Visakhapatnam 530045, India
| | - Kishore V L Parsa
- Centre for Innovation in Molecular and Pharmaceutical Sciences (CIMPS), Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India.
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9
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Wang C, Yang K, Liu X, Wang S, Song M, Belmonte JCI, Qu J, Liu GH, Zhang W. MAVS Antagonizes Human Stem Cell Senescence as a Mitochondrial Stabilizer. RESEARCH (WASHINGTON, D.C.) 2023; 6:0192. [PMID: 37521327 PMCID: PMC10374246 DOI: 10.34133/research.0192] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/20/2023] [Indexed: 08/01/2023]
Abstract
Mitochondrial dysfunction is a hallmark feature of cellular senescence and organ aging. Here, we asked whether the mitochondrial antiviral signaling protein (MAVS), which is essential for driving antiviral response, also regulates human stem cell senescence. To answer this question, we used CRISPR/Cas9-mediated gene editing and directed differentiation techniques to generate various MAVS-knockout human stem cell models. We found that human mesenchymal stem cells (hMSCs) were sensitive to MAVS deficiency, as manifested by accelerated senescence phenotypes. We uncovered that the role of MAVS in maintaining mitochondrial structural integrity and functional homeostasis depends on its interaction with the guanosine triphosphatase optic atrophy type 1 (OPA1). Depletion of MAVS or OPA1 led to the dysfunction of mitochondria and cellular senescence, whereas replenishment of MAVS or OPA1 in MAVS-knockout hMSCs alleviated mitochondrial defects and premature senescence phenotypes. Taken together, our data underscore an uncanonical role of MAVS in safeguarding mitochondrial homeostasis and antagonizing human stem cell senescence.
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Affiliation(s)
- Cui Wang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics,
Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kuan Yang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics,
Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Sino-Danish College,
University of Chinese Academy of Sciences, Beijing 101408, China
| | - Xiaoqian Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology,
Chinese Academy of Sciences, Beijing 100101, China
- Institute for Stem Cell and Regeneration,
Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Si Wang
- Advanced Innovation Center for Human Brain Protection, National Clinical Research Center for Geriatric Disorders,
Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Moshi Song
- University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration,
Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
- State Key Laboratory of Membrane Biology, Institute of Zoology,
Chinese Academy of Sciences, Beijing 100101, China
| | | | - Jing Qu
- University of Chinese Academy of Sciences, Beijing 100049, China
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology,
Chinese Academy of Sciences, Beijing 100101, China
- Institute for Stem Cell and Regeneration,
Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Guang-Hui Liu
- University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration,
Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
- Advanced Innovation Center for Human Brain Protection, National Clinical Research Center for Geriatric Disorders,
Xuanwu Hospital Capital Medical University, Beijing 100053, China
- State Key Laboratory of Membrane Biology, Institute of Zoology,
Chinese Academy of Sciences, Beijing 100101, China
| | - Weiqi Zhang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics,
Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Sino-Danish College,
University of Chinese Academy of Sciences, Beijing 101408, China
- Institute for Stem Cell and Regeneration,
Chinese Academy of Sciences, Beijing 100101, China
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10
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Weiser A, Hermant A, Bermont F, Sizzano F, Karaz S, Alvarez-Illera P, Santo-Domingo J, Sorrentino V, Feige JN, De Marchi U. The mitochondrial calcium uniporter (MCU) activates mitochondrial respiration and enhances mobility by regulating mitochondrial redox state. Redox Biol 2023; 64:102759. [PMID: 37302345 PMCID: PMC10363449 DOI: 10.1016/j.redox.2023.102759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/14/2023] [Accepted: 05/21/2023] [Indexed: 06/13/2023] Open
Abstract
Regulation of mitochondrial redox balance is emerging as a key event for cell signaling in both physiological and pathological conditions. However, the link between the mitochondrial redox state and the modulation of these conditions remains poorly defined. Here, we discovered that activation of the evolutionary conserved mitochondrial calcium uniporter (MCU) modulates mitochondrial redox state. By using mitochondria-targeted redox and calcium sensors and genetic MCU-ablated models, we provide evidence of the causality between MCU activation and net reduction of mitochondrial (but not cytosolic) redox state. Redox modulation of redox-sensitive groups via MCU stimulation is required for maintaining respiratory capacity in primary human myotubes and C. elegans, and boosts mobility in worms. The same benefits are obtained bypassing MCU via direct pharmacological reduction of mitochondrial proteins. Collectively, our results demonstrate that MCU regulates mitochondria redox balance and that this process is required to promote the MCU-dependent effects on mitochondrial respiration and mobility.
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Affiliation(s)
- Anna Weiser
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland; Molecular Nutritional Medicine, Else Kröner Fresenius Center for Nutritional Medicine, Technische Universität München, 85354 Freising, Germany
| | - Aurélie Hermant
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Flavien Bermont
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Federico Sizzano
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Sonia Karaz
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Pilar Alvarez-Illera
- Department of Biochemistry and Molecular Biology, University of Valladolid, Unidad de Excelencia Instituto de Biología y Genética Molecular (IBGM), 47003 Valladolid, Spain
| | - Jaime Santo-Domingo
- Department of Biochemistry and Molecular Biology, University of Valladolid, Unidad de Excelencia Instituto de Biología y Genética Molecular (IBGM), 47003 Valladolid, Spain
| | - Vincenzo Sorrentino
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland; Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 117596, Singapore
| | - Jerome N Feige
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Umberto De Marchi
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland.
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11
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Reid K, Daniels EG, Vasam G, Kamble R, Janssens GE, Hu IM, Green AE, Houtkooper RH, Menzies KJ. Reducing mitochondrial ribosomal gene expression does not alter metabolic health or lifespan in mice. Sci Rep 2023; 13:8391. [PMID: 37225705 PMCID: PMC10209074 DOI: 10.1038/s41598-023-35196-3] [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: 11/14/2022] [Accepted: 05/14/2023] [Indexed: 05/26/2023] Open
Abstract
Maintaining mitochondrial function is critical to an improved healthspan and lifespan. Introducing mild stress by inhibiting mitochondrial translation invokes the mitochondrial unfolded protein response (UPRmt) and increases lifespan in several animal models. Notably, lower mitochondrial ribosomal protein (MRP) expression also correlates with increased lifespan in a reference population of mice. In this study, we tested whether partially reducing the gene expression of a critical MRP, Mrpl54, reduced mitochondrial DNA-encoded protein content, induced the UPRmt, and affected lifespan or metabolic health using germline heterozygous Mrpl54 mice. Despite reduced Mrpl54 expression in multiple organs and a reduction in mitochondrial-encoded protein expression in myoblasts, we identified few significant differences between male or female Mrpl54+/- and wild type mice in initial body composition, respiratory parameters, energy intake and expenditure, or ambulatory motion. We also observed no differences in glucose or insulin tolerance, treadmill endurance, cold tolerance, heart rate, or blood pressure. There were no differences in median life expectancy or maximum lifespan. Overall, we demonstrate that genetic manipulation of Mrpl54 expression reduces mitochondrial-encoded protein content but is not sufficient to improve healthspan in otherwise healthy and unstressed mice.
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Affiliation(s)
- Kim Reid
- Department of Biology and Ottawa Institute of Systems Biology, University of Ottawa, 30 Marie Curie Private, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, Ottawa Institute of Systems Biology and the Éric Poulin Centre for Neuromuscular Disease, University of Ottawa, Ottawa, ON, Canada
| | - Eileen G Daniels
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism Institute, Amsterdam, The Netherlands
| | - Goutham Vasam
- Interdisciplinary School of Health Sciences, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada
| | - Rashmi Kamble
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Georges E Janssens
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism Institute, Amsterdam, The Netherlands
| | - Iman M Hu
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism Institute, Amsterdam, The Netherlands
| | - Alexander E Green
- Interdisciplinary School of Health Sciences, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, Ottawa Institute of Systems Biology and the Éric Poulin Centre for Neuromuscular Disease, University of Ottawa, Ottawa, ON, Canada
| | - Riekelt H Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
- Amsterdam Gastroenterology Endocrinology and Metabolism Institute, Amsterdam, The Netherlands.
- Amsterdam Cardiovascular Sciences Institute, Amsterdam, The Netherlands.
| | - Keir J Menzies
- Interdisciplinary School of Health Sciences, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada.
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, Ottawa Institute of Systems Biology and the Éric Poulin Centre for Neuromuscular Disease, University of Ottawa, Ottawa, ON, Canada.
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12
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Wang Y, Wu W, Gong J. Live or death in cells: from micronutrition metabolism to cell fate. Front Cell Dev Biol 2023; 11:1185989. [PMID: 37250891 PMCID: PMC10213646 DOI: 10.3389/fcell.2023.1185989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 04/28/2023] [Indexed: 05/31/2023] Open
Abstract
Micronutrients and cell death have a strong relationship and both are essential for human to maintain good body health. Dysregulation of any micronutrients causes metabolic or chronic diseases, including obesity, cardiometabolic condition, neurodegeneration, and cancer. The nematode Caenorhabditis elegans is an ideal genetic organism for researching the mechanisms of micronutrients in metabolism, healthspan, and lifespan. For example, C. elegans is a haem auxotroph, and the research of this special haem trafficking pathway contributes important reference to mammal study. Also, C. elegans characteristics including anatomy simply, clear cell lineage, well-defined genetics, and easily differentiated cell forms make it a powerful tool for studying the mechanisms of cell death including apoptosis, necrosis, autophagy, and ferroptosis. Here, we describe the understanding of micronutrient metabolism currently and also sort out the fundamental mechanisms of different kinds of cell death. A thorough understanding of these physiological processes not only builds a foundation for developing better treatments for various micronutrient disorders but also provides key insights into human health and aging.
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Affiliation(s)
- Yuting Wang
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wei Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jianke Gong
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
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13
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Wong SQ, Ryan CJ, Bonal DM, Mills J, Lapierre LR. Neuronal HLH-30/TFEB modulates peripheral mitochondrial fragmentation to improve thermoresistance in Caenorhabditis elegans. Aging Cell 2023; 22:e13741. [PMID: 36419219 PMCID: PMC10014052 DOI: 10.1111/acel.13741] [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: 04/09/2022] [Revised: 09/29/2022] [Accepted: 10/31/2022] [Indexed: 11/25/2022] Open
Abstract
Transcription factor EB (TFEB) is a conserved master transcriptional activator of autophagy and lysosomal genes that modulates organismal lifespan regulation and stress resistance. As neurons can coordinate organism-wide processes, we investigated the role of neuronal TFEB in stress resistance and longevity. To this end, the Caenorhabditis elegans TFEB ortholog, hlh-30, was rescued panneuronally in hlh-30 loss of function mutants. While important in the long lifespan of daf-2 animals, neuronal HLH-30/TFEB was not sufficient to restore normal lifespan in short-lived hlh-30 mutants. However, neuronal HLH-30/TFEB rescue mediated robust improvements in the heat stress resistance of wildtype but not daf-2 animals. Notably, these mechanisms can be uncoupled, as neuronal HLH-30/TFEB requires DAF-16/FOXO to regulate longevity but not thermoresistance. Through further transcriptomics profiling and functional analysis, we discovered that neuronal HLH-30/TFEB modulates neurotransmission through the hitherto uncharacterized protein W06A11.1 by inducing peripheral mitochondrial fragmentation and organismal heat stress resistance in a non-cell autonomous manner. Taken together, this study uncovers a novel mechanism of heat stress protection mediated by neuronal HLH-30/TFEB.
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Affiliation(s)
- Shi Quan Wong
- Department of Molecular Biology, Cell Biology and BiochemistryBrown UniversityProvidenceRhode IslandUSA
| | - Catherine J. Ryan
- Department of Molecular Biology, Cell Biology and BiochemistryBrown UniversityProvidenceRhode IslandUSA
| | - Dennis M. Bonal
- Pathobiology Graduate Program, Division of Biology & MedicineBrown UniversityProvidenceRhode IslandUSA
| | - Joslyn Mills
- Department of Molecular Biology, Cell Biology and BiochemistryBrown UniversityProvidenceRhode IslandUSA
- Department of BiologyWheaton CollegeNortonMassachusettsUSA
| | - Louis R. Lapierre
- Department of Molecular Biology, Cell Biology and BiochemistryBrown UniversityProvidenceRhode IslandUSA
- Département de Chimie et BiochimieUniversité de MonctonMonctonNew BrunswickCanada
- New Brunswick Center for Precision MedicineMonctonNew BrunswickCanada
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14
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Yen PL, Yang CR, Huang ML, Lin TA, Liao VHC. Chronic exposure to di(2-ethylhexyl) phthalate (DEHP) weakens innate immunity and leads to immunosenescence in C. elegans. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 98:104071. [PMID: 36690191 DOI: 10.1016/j.etap.2023.104071] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 01/16/2023] [Accepted: 01/19/2023] [Indexed: 06/17/2023]
Abstract
Di(2-ethylhexyl) phthalate (DEHP), a widespread contaminant, has numerous adverse impacts on human health and ecosystems. Chronic DEHP exposure has been found to accelerate aging; however, its potential threat to age-dependent innate immune decline remains unknown. This study aims to evaluate the effects of chronic DEHP exposure on innate immunosenescence in Caenorhabditis elegans. We show that the length of the exposure period significantly impacts DEHP-induced age-related declines, which is linked to immunosenescence and oxidative stress. We found that the DEHP-caused immunosenescence is accompanied with downregulation of an antimicrobial gene lys-7 as well as an enhancement of the nuclear translocation of HLH-30, an orthologue of mammalian transcription factor EB (TFEB). Moreover, DEHP exposure increases the expression of riok-1, a human RIO kinase homolog, which is associated with DEHP-induced HLH-30/TFEB translocation. Our findings suggest that early-life and chronic exposure to DEHP, mostly due to parent compound rather than its metabolite mono(2-ethylhexyl) phthalate (MEHP), may weaken the innate immunity in C. elegans and may enhance susceptibility to infections or promote immunosenescence in aged populations.
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Affiliation(s)
- Pei-Ling Yen
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Cai-Ru Yang
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Mei-Lun Huang
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Ting-An Lin
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Vivian Hsiu-Chuan Liao
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 106, Taiwan.
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15
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Schmitt F, Eckert GP. Caenorhabditis elegans as a Model for the Effects of Phytochemicals on Mitochondria and Aging. Biomolecules 2022; 12:1550. [PMID: 36358900 PMCID: PMC9687847 DOI: 10.3390/biom12111550] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 09/08/2024] Open
Abstract
The study of aging is an important topic in contemporary research. Considering the demographic changes and the resulting shifts towards an older population, it is of great interest to preserve youthful physiology in old age. For this endeavor, it is necessary to choose an appropriate model. One such model is the nematode Caenorhabditis elegans (C. elegans), which has a long tradition in aging research. In this review article, we explore the advantages of using the nematode model in aging research, focusing on bioenergetics and the study of secondary plant metabolites that have interesting implications during this process. In the first section, we review the situation of aging research today. Conventional theories and hypotheses about the ongoing aging process will be presented and briefly explained. The second section focuses on the nematode C. elegans and its utility in aging and nutrition research. Two useful genome editing methods for monitoring genetic interactions (RNAi and CRISPR/Cas9) are presented. Due to the mitochondria's influence on aging, we also introduce the possibility of observing bioenergetics and respiratory phenomena in C. elegans. We then report on mitochondrial conservation between vertebrates and invertebrates. Here, we explain why the nematode is a suitable model for the study of mitochondrial aging. In the fourth section, we focus on phytochemicals and their applications in contemporary nutritional science, with an emphasis on aging research. As an emerging field of science, we conclude this review in the fifth section with several studies focusing on mitochondrial research and the effects of phytochemicals such as polyphenols. In summary, the nematode C. elegans is a suitable model for aging research that incorporates the mitochondrial theory of aging. Its living conditions in the laboratory are optimal for feeding studies, thus enabling bioenergetics to be observed during the aging process.
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Affiliation(s)
| | - Gunter P. Eckert
- Laboratory for Nutrition in Prevention and Therapy, Biomedical Research Center Seltersberg (BFS), Institute of Nutritional Science, Justus Liebig University Giessen, Schubertstrasse 81, 35392 Giessen, Germany
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16
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Lang M, Pramstaller PP, Pichler I. Crosstalk of organelles in Parkinson's disease - MiT family transcription factors as central players in signaling pathways connecting mitochondria and lysosomes. Mol Neurodegener 2022; 17:50. [PMID: 35842725 PMCID: PMC9288732 DOI: 10.1186/s13024-022-00555-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 07/01/2022] [Indexed: 11/10/2022] Open
Abstract
Living organisms constantly need to adapt to their surrounding environment and have evolved sophisticated mechanisms to deal with stress. Mitochondria and lysosomes are central organelles in the response to energy and nutrient availability within a cell and act through interconnected mechanisms. However, when such processes become overwhelmed, it can lead to pathologies. Parkinson's disease (PD) is a common neurodegenerative disorder (NDD) characterized by proteinaceous intracellular inclusions and progressive loss of dopaminergic neurons, which causes motor and non-motor symptoms. Genetic and environmental factors may contribute to the disease etiology. Mitochondrial dysfunction has long been recognized as a hallmark of PD pathogenesis, and several aspects of mitochondrial biology are impaired in PD patients and models. In addition, defects of the autophagy-lysosomal pathway have extensively been observed in cell and animal models as well as PD patients' brains, where constitutive autophagy is indispensable for adaptation to stress and energy deficiency. Genetic and molecular studies have shown that the functions of mitochondria and lysosomal compartments are tightly linked and influence each other. Connections between these organelles are constituted among others by mitophagy, organellar dynamics and cellular signaling cascades, such as calcium (Ca2+) and mTOR (mammalian target of rapamycin) signaling and the activation of transcription factors. Members of the Microphthalmia-associated transcription factor family (MiT), including MITF, TFE3 and TFEB, play a central role in regulating cellular homeostasis in response to metabolic pressure and are considered master regulators of lysosomal biogenesis. As such, they are part of the interconnection between mitochondria and lysosome functions and therefore represent attractive targets for therapeutic approaches against NDD, including PD. The activation of MiT transcription factors through genetic and pharmacological approaches have shown encouraging results at ameliorating PD-related phenotypes in in vitro and in vivo models. In this review, we summarize the relationship between mitochondrial and autophagy-lysosomal functions in the context of PD etiology and focus on the role of the MiT pathway and its potential as pharmacological target against PD.
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Affiliation(s)
- Martin Lang
- Institute for Biomedicine, Eurac Research, Affiliated Institute of the University of Lübeck, Bolzano, Italy.
| | - Peter P Pramstaller
- Institute for Biomedicine, Eurac Research, Affiliated Institute of the University of Lübeck, Bolzano, Italy.,Department of Neurology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Irene Pichler
- Institute for Biomedicine, Eurac Research, Affiliated Institute of the University of Lübeck, Bolzano, Italy
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17
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McIntyre RL, Rahman M, Vanapalli SA, Houtkooper RH, Janssens GE. Biological Age Prediction From Wearable Device Movement Data Identifies Nutritional and Pharmacological Interventions for Healthy Aging. FRONTIERS IN AGING 2022; 2:708680. [PMID: 35822021 PMCID: PMC9261299 DOI: 10.3389/fragi.2021.708680] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/01/2021] [Indexed: 12/14/2022]
Abstract
Intervening in aging processes is hypothesized to extend healthy years of life and treat age-related disease, thereby providing great benefit to society. However, the ability to measure the biological aging process in individuals, which is necessary to test for efficacy of these interventions, remains largely inaccessible to the general public. Here we used NHANES physical activity accelerometer data from a wearable device and machine-learning algorithms to derive biological age predictions for individuals based on their movement patterns. We found that accelerated biological aging from our “MoveAge” predictor is associated with higher all-cause mortality. We further searched for nutritional or pharmacological compounds that associate with decelerated aging according to our model. A number of nutritional components peak in their association to decelerated aging later in life, including fiber, magnesium, and vitamin E. We additionally identified one FDA-approved drug associated with decelerated biological aging: the alpha-blocker doxazosin. We show that doxazosin extends healthspan and lifespan in C. elegans. Our work demonstrates how a biological aging score based on relative mobility can be accessible to the wider public and can potentially be used to identify and determine efficacy of geroprotective interventions.
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Affiliation(s)
- Rebecca L McIntyre
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology, and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Mizanur Rahman
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX, United States
| | - Siva A Vanapalli
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX, United States.,NemaLife Inc., Lubbock, TX, United States
| | - Riekelt H Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology, and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Georges E Janssens
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology, and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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18
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Roy C, Molin L, Alcolei A, Solyga M, Bonneau B, Vachon C, Bessereau JL, Solari F. DAF-2/insulin IGF-1 receptor regulates motility during aging by integrating opposite signaling from muscle and neuronal tissues. Aging Cell 2022; 21:e13660. [PMID: 35808897 PMCID: PMC9381905 DOI: 10.1111/acel.13660] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 05/27/2022] [Accepted: 06/05/2022] [Indexed: 12/11/2022] Open
Abstract
During aging, preservation of locomotion is generally considered an indicator of sustained good health, in elderlies and in animal models. In Caenorhabditis elegans, mutants of the insulin‐IGF‐1 receptor DAF2/IIRc represent a paradigm of healthy aging, as their increased lifespan is accompanied by a delay in age‐related loss of motility. Here, we investigated the DAF‐2/IIRc‐dependent relationship between longevity and motility using an auxin‐inducible degron to trigger tissue‐specific degradation of endogenous DAF‐2/IIRc. As previously reported, inactivation of DAF‐2/IIRc in neurons or intestine was sufficient to extend the lifespan of worms, whereas depletion in epidermis, germline, or muscle was not. However, neither intestinal nor neuronal depletion of DAF‐2/IIRc prevented the age‐related loss of motility. In 1‐day‐old adults, DAF‐2/IIRc depletion in neurons reduced motility in a DAF‐16/FOXO dependent manner, while muscle depletion had no effect. By contrast, DAF‐2 depletion in the muscle of middle‐age animals improved their motility independently of DAF‐16/FOXO but required UNC‐120/SRF. Yet, neuronal or muscle DAF‐2/IIRc depletion both preserved the mitochondria network in aging muscle. Overall, these results show that the motility pattern of daf‐2 mutants is determined by the sequential and opposing impact of neurons and muscle tissues and can be dissociated from the regulation of the lifespan. This work also provides the characterization of a versatile tool to analyze the tissue‐specific contribution of insulin‐like signaling in integrated phenotypes at the whole organism level.
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Affiliation(s)
- Charline Roy
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5284, INSERMU1314, Institut NeuroMyoGène, MeLis, Lyon, France
| | - Laurent Molin
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5284, INSERMU1314, Institut NeuroMyoGène, MeLis, Lyon, France
| | - Allan Alcolei
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5284, INSERMU1314, Institut NeuroMyoGène, MeLis, Lyon, France
| | - Mathilde Solyga
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5284, INSERMU1314, Institut NeuroMyoGène, MeLis, Lyon, France
| | - Benjamin Bonneau
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5284, INSERMU1314, Institut NeuroMyoGène, MeLis, Lyon, France
| | - Camille Vachon
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5284, INSERMU1314, Institut NeuroMyoGène, MeLis, Lyon, France
| | - Jean-Louis Bessereau
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5284, INSERMU1314, Institut NeuroMyoGène, MeLis, Lyon, France
| | - Florence Solari
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5284, INSERMU1314, Institut NeuroMyoGène, MeLis, Lyon, France
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19
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Schomakers BV, Hermans J, Jaspers YR, Salomons G, Vaz FM, van Weeghel M, Houtkooper RH. Polar metabolomics in human muscle biopsies using a liquid-liquid extraction and full-scan LC-MS. STAR Protoc 2022; 3:101302. [PMID: 35479116 PMCID: PMC9035783 DOI: 10.1016/j.xpro.2022.101302] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We describe here a user-friendly analysis protocol for semi-targeted polar metabolomics in human muscle biopsies using Zwitterionic Hydrophilic Interaction Liquid Chromatography and high-resolution full-scan mass spectrometry. Previously, this protocol has been used for Caenorhabditis elegans. Here we show that it can be successfully applied to human muscle biopsies with minor adjustments. Summarized instructions for other matrices are also provided. As peak integration in metabolomics can be challenging, we provide expected retention times and extensive peak descriptions to aid this process. For complete details on the use and execution of this protocol, please refer to Molenaars et al. (2021).
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Affiliation(s)
- Bauke V. Schomakers
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
- Core Facility Metabolomics, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
| | - Jill Hermans
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
- Core Facility Metabolomics, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
| | - Yorrick R.J. Jaspers
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
| | - Gajja Salomons
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
| | - Frédéric M. Vaz
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
- Core Facility Metabolomics, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
| | - Michel van Weeghel
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
- Core Facility Metabolomics, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
| | - Riekelt H. Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, Location AMC, Meibergdreef 9, AZ 1105 Amsterdam, the Netherlands
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20
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Regulation of Aging and Longevity by Ion Channels and Transporters. Cells 2022; 11:cells11071180. [PMID: 35406743 PMCID: PMC8997527 DOI: 10.3390/cells11071180] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/22/2022] [Accepted: 03/29/2022] [Indexed: 12/10/2022] Open
Abstract
Despite significant advances in our understanding of the mechanisms that underlie age-related physiological decline, our ability to translate these insights into actionable strategies to extend human healthspan has been limited. One of the major reasons for the existence of this barrier is that with a few important exceptions, many of the proteins that mediate aging have proven to be undruggable. The argument put forth here is that the amenability of ion channels and transporters to pharmacological manipulation could be leveraged to develop novel therapeutic strategies to combat aging. This review delves into the established roles for ion channels and transporters in the regulation of aging and longevity via their influence on membrane excitability, Ca2+ homeostasis, mitochondrial and endolysosomal function, and the transduction of sensory stimuli. The goal is to provide the reader with an understanding of emergent themes, and prompt further investigation into how the activities of ion channels and transporters sculpt the trajectories of cellular and organismal aging.
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21
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Zhang WH, Koyuncu S, Vilchez D. Insights Into the Links Between Proteostasis and Aging From C. elegans. FRONTIERS IN AGING 2022; 3:854157. [PMID: 35821832 PMCID: PMC9261386 DOI: 10.3389/fragi.2022.854157] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/22/2022] [Indexed: 04/20/2023]
Abstract
Protein homeostasis (proteostasis) is maintained by a tightly regulated and interconnected network of biological pathways, preventing the accumulation and aggregation of damaged or misfolded proteins. Thus, the proteostasis network is essential to ensure organism longevity and health, while proteostasis failure contributes to the development of aging and age-related diseases that involve protein aggregation. The model organism Caenorhabditis elegans has proved invaluable for the study of proteostasis in the context of aging, longevity and disease, with a number of pivotal discoveries attributable to the use of this organism. In this review, we discuss prominent findings from C. elegans across the many key aspects of the proteostasis network, within the context of aging and disease. These studies collectively highlight numerous promising therapeutic targets, which may 1 day facilitate the development of interventions to delay aging and prevent age-associated diseases.
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Affiliation(s)
- William Hongyu Zhang
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Seda Koyuncu
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - David Vilchez
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
- Faculty of Medicine, University Hospital Cologne, Cologne, Germany
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22
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Lima T, Li TY, Mottis A, Auwerx J. Pleiotropic effects of mitochondria in aging. NATURE AGING 2022; 2:199-213. [PMID: 37118378 DOI: 10.1038/s43587-022-00191-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/07/2022] [Indexed: 04/30/2023]
Abstract
Aging is typified by a progressive decline in mitochondrial activity and stress resilience. Here, we review how mitochondrial stress pathways have pleiotropic effects on cellular and systemic homeostasis, which can comprise protective or detrimental responses during aging. We describe recent evidence arguing that defects in these conserved adaptive pathways contribute to aging and age-related diseases. Signaling pathways regulating the mitochondrial unfolded protein response, mitochondrial membrane dynamics, and mitophagy are discussed, emphasizing how their failure contributes to heteroplasmy and de-regulation of key metabolites. Our current understanding of how these processes are controlled and interconnected explains how mitochondria can widely impact fundamental aspects of aging.
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Affiliation(s)
- Tanes Lima
- Laboratory of Integrative Systems Physiology, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Terytty Yang Li
- Laboratory of Integrative Systems Physiology, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Adrienne Mottis
- Laboratory of Integrative Systems Physiology, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Johan Auwerx
- Laboratory of Integrative Systems Physiology, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
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23
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Gao AW, El Alam G, Lalou A, Li TY, Molenaars M, Zhu Y, Overmyer KA, Shishkova E, Hof K, Bou Sleiman M, Houtkooper RH, Coon JJ, Auwerx J. Multi-omics analysis identifies essential regulators of mitochondrial stress response in two wild-type C. elegans strains. iScience 2022; 25:103734. [PMID: 35118355 PMCID: PMC8792074 DOI: 10.1016/j.isci.2022.103734] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/02/2021] [Accepted: 12/31/2021] [Indexed: 11/28/2022] Open
Abstract
The mitochondrial unfolded protein response (UPRmt) is a promising pharmacological target for aging and age-related diseases. However, the integrative analysis of the impact of UPRmt activation on different signaling layers in animals with different genetic backgrounds is lacking. Here, we applied systems approaches to investigate the effect of UPRmt induced by doxycycline (Dox) on transcriptome, proteome, and lipidome in two genetically divergent worm strains, named N2 and CB4856. From the integrated omics datasets, we found that Dox prolongs lifespan of both worm strains through shared and strain-specific mechanisms. Specifically, Dox strongly impacts mitochondria, upregulates defense response, and lipid metabolism, while decreasing triglycerides. We further validated that lipid genes acs-2/20 and fat-7/6 were required for Dox-induced UPRmt and longevity in N2 and CB4856 worms, respectively. Our data have translational value as they indicate that the beneficial effects of Dox-induced UPRmt on lifespan are consistent across different genetic backgrounds through different regulators. Dox extends lifespan of N2 and CB4856 via shared and strain-specific mechanisms Dox controls mitochondria, defense responses, and lipid metabolism in both strains Dox-mediated longevity requires acs-2/20 in N2 and fat-7/6 in CB4856 worms
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Affiliation(s)
- Arwen W. Gao
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Gaby El Alam
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Amélia Lalou
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Terytty Yang Li
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Marte Molenaars
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, 1105 Amsterdam, AZ, the Netherlands
| | - Yunyun Zhu
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI 53506, USA
| | - Katherine A. Overmyer
- National Center for Quantitative Biology of Complex Systems, Madison, WI 53706, USA
- Morgridge Institute for Research, Madison, WI 53515, USA
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI 53506, USA
| | - Evgenia Shishkova
- National Center for Quantitative Biology of Complex Systems, Madison, WI 53706, USA
- Morgridge Institute for Research, Madison, WI 53515, USA
| | - Kevin Hof
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Maroun Bou Sleiman
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Riekelt H. Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, 1105 Amsterdam, AZ, the Netherlands
| | - Joshua J. Coon
- National Center for Quantitative Biology of Complex Systems, Madison, WI 53706, USA
- Morgridge Institute for Research, Madison, WI 53515, USA
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI 53506, USA
- Department of Chemistry, University of Wisconsin, Madison, WI 53506, USA
| | - Johan Auwerx
- Laboratory of Integrative Systems Physiology, Interfaculty Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
- Corresponding author
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24
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Machiela E, Rudich PD, Traa A, Anglas U, Soo SK, Senchuk MM, Van Raamsdonk JM. Targeting Mitochondrial Network Disorganization is Protective in C. elegans Models of Huntington's Disease. Aging Dis 2021; 12:1753-1772. [PMID: 34631219 PMCID: PMC8460302 DOI: 10.14336/ad.2021.0404] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 04/03/2021] [Indexed: 12/19/2022] Open
Abstract
Huntington’s disease (HD) is an adult-onset neurodegenerative disease caused by a trinucleotide CAG repeat expansion in the HTT gene. While the pathogenesis of HD is incompletely understood, mitochondrial dysfunction is thought to be a key contributor. In this work, we used C. elegans models to elucidate the role of mitochondrial dynamics in HD. We found that expression of a disease-length polyglutamine tract in body wall muscle, either with or without exon 1 of huntingtin, results in mitochondrial fragmentation and mitochondrial network disorganization. While mitochondria in young HD worms form elongated tubular networks as in wild-type worms, mitochondrial fragmentation occurs with age as expanded polyglutamine protein forms aggregates. To correct the deficit in mitochondrial morphology, we reduced levels of DRP-1, the GTPase responsible for mitochondrial fission. Surprisingly, we found that disrupting drp-1 can have detrimental effects, which are dependent on how much expression is decreased. To avoid potential negative side effects of disrupting drp-1, we examined whether decreasing mitochondrial fragmentation by targeting other genes could be beneficial. Through this approach, we identified multiple genetic targets that rescue movement deficits in worm models of HD. Three of these genetic targets, pgp-3, F25B5.6 and alh-12, increased movement in the HD worm model and restored mitochondrial morphology to wild-type morphology. This work demonstrates that disrupting the mitochondrial fission gene drp-1 can be detrimental in animal models of HD, but that decreasing mitochondrial fragmentation by targeting other genes can be protective. Overall, this study identifies novel therapeutic targets for HD aimed at improving mitochondrial health.
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Affiliation(s)
- Emily Machiela
- 1Laboratory of Aging and Neurodegenerative Disease, Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids MI 49503, USA
| | - Paige D Rudich
- 2Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, H4A 3J1, Canada.,3Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, H4A 3J1, Canada
| | - Annika Traa
- 2Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, H4A 3J1, Canada.,3Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, H4A 3J1, Canada
| | - Ulrich Anglas
- 2Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, H4A 3J1, Canada.,3Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, H4A 3J1, Canada
| | - Sonja K Soo
- 2Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, H4A 3J1, Canada.,3Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, H4A 3J1, Canada
| | - Megan M Senchuk
- 1Laboratory of Aging and Neurodegenerative Disease, Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids MI 49503, USA
| | - Jeremy M Van Raamsdonk
- 1Laboratory of Aging and Neurodegenerative Disease, Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids MI 49503, USA.,2Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, H4A 3J1, Canada.,3Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, H4A 3J1, Canada.,4Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada.,5Department of Genetics, Harvard Medical School, Boston MA 02115, USA
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25
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Gokhale A, Lee CE, Zlatic SA, Freeman AAH, Shearing N, Hartwig C, Ogunbona O, Bassell JL, Wynne ME, Werner E, Xu C, Wen Z, Duong D, Seyfried NT, Bearden CE, Oláh VJ, Rowan MJM, Glausier JR, Lewis DA, Faundez V. Mitochondrial Proteostasis Requires Genes Encoded in a Neurodevelopmental Syndrome Locus. J Neurosci 2021; 41:6596-6616. [PMID: 34261699 PMCID: PMC8336702 DOI: 10.1523/jneurosci.2197-20.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 06/23/2021] [Accepted: 06/26/2021] [Indexed: 02/08/2023] Open
Abstract
Eukaryotic cells maintain proteostasis through mechanisms that require cytoplasmic and mitochondrial translation. Genetic defects affecting cytoplasmic translation perturb synapse development, neurotransmission, and are causative of neurodevelopmental disorders, such as Fragile X syndrome. In contrast, there is little indication that mitochondrial proteostasis, either in the form of mitochondrial protein translation and/or degradation, is required for synapse development and function. Here we focus on two genes deleted in a recurrent copy number variation causing neurodevelopmental disorders, the 22q11.2 microdeletion syndrome. We demonstrate that SLC25A1 and MRPL40, two genes present in the microdeleted segment and whose products localize to mitochondria, interact and are necessary for mitochondrial ribosomal integrity and proteostasis. Our Drosophila studies show that mitochondrial ribosome function is necessary for synapse neurodevelopment, function, and behavior. We propose that mitochondrial proteostasis perturbations, either by genetic or environmental factors, are a pathogenic mechanism for neurodevelopmental disorders.SIGNIFICANCE STATEMENT The balance between cytoplasmic protein synthesis and degradation, or cytoplasmic proteostasis, is required for normal synapse function and neurodevelopment. Cytoplasmic and mitochondrial ribosomes are necessary for two compartmentalized, yet interdependent, forms of proteostasis. Proteostasis dependent on cytoplasmic ribosomes is a well-established target of genetic defects that cause neurodevelopmental disorders, such as autism. Here we show that the mitochondrial ribosome is a neurodevelopmentally regulated organelle whose function is required for synapse development and function. We propose that defective mitochondrial proteostasis is a mechanism with the potential to contribute to neurodevelopmental disease.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Zhexing Wen
- Departments of Cell Biology
- Psychiatry and Behavioral Sciences
| | - Duc Duong
- and Biochemistry, Emory University, Atlanta, Georgia 30322
| | | | - Carrie E Bearden
- Semel Institute for Neuroscience and Human Behavior Department of Psychology, UCLA, Los Angeles, California 90095
| | | | | | - Jill R Glausier
- Departments of Psychiatry and Neuroscience, University of Pittsburgh, Pittsburgh, Pennsylvania 15213
| | - David A Lewis
- Departments of Psychiatry and Neuroscience, University of Pittsburgh, Pittsburgh, Pennsylvania 15213
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26
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Richman TR, Ermer JA, Siira SJ, Kuznetsova I, Brosnan CA, Rossetti G, Baker J, Perks KL, Cserne Szappanos H, Viola HM, Gray N, Larance M, Hool LC, Zuryn S, Rackham O, Filipovska A. Mitochondrial mistranslation modulated by metabolic stress causes cardiovascular disease and reduced lifespan. Aging Cell 2021; 20:e13408. [PMID: 34096683 PMCID: PMC8282274 DOI: 10.1111/acel.13408] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 03/17/2021] [Accepted: 05/08/2021] [Indexed: 12/25/2022] Open
Abstract
Changes in the rate and fidelity of mitochondrial protein synthesis impact the metabolic and physiological roles of mitochondria. Here we explored how environmental stress in the form of a high-fat diet modulates mitochondrial translation and affects lifespan in mutant mice with error-prone (Mrps12ep / ep ) or hyper-accurate (Mrps12ha / ha ) mitochondrial ribosomes. Intriguingly, although both mutations are metabolically beneficial in reducing body weight, decreasing circulating insulin and increasing glucose tolerance during a high-fat diet, they manifest divergent (either deleterious or beneficial) outcomes in a tissue-specific manner. In two distinct organs that are commonly affected by the metabolic disease, the heart and the liver, Mrps12ep / ep mice were protected against heart defects but sensitive towards lipid accumulation in the liver, activating genes involved in steroid and amino acid metabolism. In contrast, enhanced translational accuracy in Mrps12ha / ha mice protected the liver from a high-fat diet through activation of liver proliferation programs, but enhanced the development of severe hypertrophic cardiomyopathy and led to reduced lifespan. These findings reflect the complex transcriptional and cell signalling responses that differ between post-mitotic (heart) and highly proliferative (liver) tissues. We show trade-offs between the rate and fidelity of mitochondrial protein synthesis dictate tissue-specific outcomes due to commonly encountered stressful environmental conditions or aging.
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Affiliation(s)
- Tara R. Richman
- Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands WA Australia
- ARC Centre of Excellence in Synthetic Biology QEII Medical Centre Nedlands WA Australia
- Centre for Medical Research QEII Medical Centre, The University of Western Australia Nedlands WA Australia
| | - Judith A. Ermer
- Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands WA Australia
- ARC Centre of Excellence in Synthetic Biology QEII Medical Centre Nedlands WA Australia
- Centre for Medical Research QEII Medical Centre, The University of Western Australia Nedlands WA Australia
| | - Stefan J. Siira
- Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands WA Australia
- ARC Centre of Excellence in Synthetic Biology QEII Medical Centre Nedlands WA Australia
- Centre for Medical Research QEII Medical Centre, The University of Western Australia Nedlands WA Australia
| | - Irina Kuznetsova
- Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands WA Australia
- ARC Centre of Excellence in Synthetic Biology QEII Medical Centre Nedlands WA Australia
- Centre for Medical Research QEII Medical Centre, The University of Western Australia Nedlands WA Australia
| | - Christopher A. Brosnan
- Clem Jones Centre for Ageing Dementia Research Queensland Brain Institute The University of Queensland Brisbane Qld Australia
| | - Giulia Rossetti
- Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands WA Australia
- ARC Centre of Excellence in Synthetic Biology QEII Medical Centre Nedlands WA Australia
- Centre for Medical Research QEII Medical Centre, The University of Western Australia Nedlands WA Australia
- Telethon Kids Institute Perth Children's Hospital Nedlands WA Australia
| | - Jessica Baker
- Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands WA Australia
- ARC Centre of Excellence in Synthetic Biology QEII Medical Centre Nedlands WA Australia
- Centre for Medical Research QEII Medical Centre, The University of Western Australia Nedlands WA Australia
- Telethon Kids Institute Perth Children's Hospital Nedlands WA Australia
| | - Kara L. Perks
- Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands WA Australia
- ARC Centre of Excellence in Synthetic Biology QEII Medical Centre Nedlands WA Australia
- Centre for Medical Research QEII Medical Centre, The University of Western Australia Nedlands WA Australia
- Telethon Kids Institute Perth Children's Hospital Nedlands WA Australia
- School of Pharmacy and Biomedical Sciences Curtin University Bentley WA Australia
| | | | - Helena M. Viola
- School of Human Sciences The University of Western Australia Nedlands WA Australia
| | - Nicola Gray
- Australian National Phenome Centre Centre for Computational and Systems Medicine Health Futures Institute Murdoch University Perth WA Australia
| | - Mark Larance
- Charles Perkins Centre School of Life and Environmental Sciences University of Sydney Sydney NSW Australia
| | - Livia C. Hool
- School of Human Sciences The University of Western Australia Nedlands WA Australia
- Victor Chang Cardiac Research Institute Sydney NSW Australia
| | - Steven Zuryn
- Clem Jones Centre for Ageing Dementia Research Queensland Brain Institute The University of Queensland Brisbane Qld Australia
| | - Oliver Rackham
- Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands WA Australia
- ARC Centre of Excellence in Synthetic Biology QEII Medical Centre Nedlands WA Australia
- Centre for Medical Research QEII Medical Centre, The University of Western Australia Nedlands WA Australia
- Telethon Kids Institute Perth Children's Hospital Nedlands WA Australia
- School of Pharmacy and Biomedical Sciences Curtin University Bentley WA Australia
| | - Aleksandra Filipovska
- Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands WA Australia
- ARC Centre of Excellence in Synthetic Biology QEII Medical Centre Nedlands WA Australia
- Centre for Medical Research QEII Medical Centre, The University of Western Australia Nedlands WA Australia
- Telethon Kids Institute Perth Children's Hospital Nedlands WA Australia
- Victor Chang Cardiac Research Institute Sydney NSW Australia
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27
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Chen LT, Lin CT, Lin LY, Hsu JM, Wu YC, Pan CL. Neuronal mitochondrial dynamics coordinate systemic mitochondrial morphology and stress response to confer pathogen resistance in C. elegans. Dev Cell 2021; 56:1770-1785.e12. [PMID: 33984269 DOI: 10.1016/j.devcel.2021.04.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 12/09/2020] [Accepted: 04/21/2021] [Indexed: 01/02/2023]
Abstract
Mitochondrial functions across different tissues are regulated in a coordinated fashion to optimize the fitness of an organism. Mitochondrial unfolded protein response (UPRmt) can be nonautonomously elicited by mitochondrial perturbation in neurons, but neuronal signals that propagate such response and its physiological significance remain incompletely understood. Here, we show that in C. elegans, loss of neuronal fzo-1/mitofusin induces nonautonomous UPRmt through multiple neurotransmitters and neurohormones, including acetylcholine, serotonin, glutamate, tyramine, and insulin-like peptides. Neuronal fzo-1 depletion also triggers nonautonomous mitochondrial fragmentation, which requires autophagy and mitophagy genes. Systemic activation of UPRmt and mitochondrial fragmentation in C. elegans via perturbing neuronal mitochondrial dynamics improves resistance to pathogenic Pseudomonas infection, which is supported by transcriptomic signatures of immunity and stress-response genes. We propose that C. elegans surveils neuronal mitochondrial dynamics to coordinate systemic UPRmt and mitochondrial connectivity for pathogen defense and optimized survival under bacterial infection.
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Affiliation(s)
- Li-Tzu Chen
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, No.7 Chung-Shan South Road, Taipei 10002, Taiwan; Center of Precision Medicine, College of Medicine, National Taiwan University, No.7 Chung-Shan South Road, Taipei 10002, Taiwan
| | - Chih-Ta Lin
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, No.7 Chung-Shan South Road, Taipei 10002, Taiwan
| | - Liang-Yi Lin
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, No.7 Chung-Shan South Road, Taipei 10002, Taiwan
| | - Jiun-Min Hsu
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, No.7 Chung-Shan South Road, Taipei 10002, Taiwan
| | - Yu-Chun Wu
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, No.7 Chung-Shan South Road, Taipei 10002, Taiwan; Center of Precision Medicine, College of Medicine, National Taiwan University, No.7 Chung-Shan South Road, Taipei 10002, Taiwan
| | - Chun-Liang Pan
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, No.7 Chung-Shan South Road, Taipei 10002, Taiwan; Center of Precision Medicine, College of Medicine, National Taiwan University, No.7 Chung-Shan South Road, Taipei 10002, Taiwan.
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28
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Cruz‐Ruiz P, Hernando‐Rodríguez B, Pérez‐Jiménez MM, Rodríguez‐Palero MJ, Martínez‐Bueno MD, Pla A, Gatsi R, Artal‐Sanz M. Prohibitin depletion extends lifespan of a TORC2/SGK-1 mutant through autophagy and the mitochondrial UPR. Aging Cell 2021; 20:e13359. [PMID: 33939875 PMCID: PMC8135086 DOI: 10.1111/acel.13359] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 03/05/2021] [Accepted: 03/25/2021] [Indexed: 12/22/2022] Open
Abstract
Mitochondrial prohibitins (PHB) are highly conserved proteins with a peculiar effect on lifespan. While PHB depletion shortens lifespan of wild‐type animals, it enhances longevity of a plethora of metabolically compromised mutants, including target of rapamycin complex 2 (TORC2) mutants sgk‐1 and rict‐1. Here, we show that sgk‐1 mutants have impaired mitochondrial homeostasis, lipogenesis and yolk formation, plausibly due to alterations in membrane lipid and sterol homeostasis. Remarkably, all these features are suppressed by PHB depletion. Our analysis shows the requirement of SRBP1/SBP‐1 for the lifespan extension of sgk‐1 mutants and the further extension conferred by PHB depletion. Moreover, although the mitochondrial unfolded protein response (UPRmt) and autophagy are induced in sgk‐1 mutants and upon PHB depletion, they are dispensable for lifespan. However, the enhanced longevity caused by PHB depletion in sgk‐1 mutants requires both, the UPRmt and autophagy, but not mitophagy. We hypothesize that UPRmt induction upon PHB depletion extends lifespan of sgk‐1 mutants through autophagy and probably modulation of lipid metabolism.
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Affiliation(s)
- Patricia Cruz‐Ruiz
- Andalusian Centre for Developmental Biology Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide Seville Spain
- Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Seville Spain
| | - Blanca Hernando‐Rodríguez
- Andalusian Centre for Developmental Biology Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide Seville Spain
- Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Seville Spain
| | - Mercedes M. Pérez‐Jiménez
- Andalusian Centre for Developmental Biology Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide Seville Spain
- Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Seville Spain
| | - María Jesús Rodríguez‐Palero
- Andalusian Centre for Developmental Biology Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide Seville Spain
- Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Seville Spain
| | - Manuel D. Martínez‐Bueno
- Andalusian Centre for Developmental Biology Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide Seville Spain
- Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Seville Spain
| | - Antoni Pla
- Andalusian Centre for Developmental Biology Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide Seville Spain
- Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Seville Spain
| | - Roxani Gatsi
- Andalusian Centre for Developmental Biology Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide Seville Spain
- Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Seville Spain
| | - Marta Artal‐Sanz
- Andalusian Centre for Developmental Biology Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide Seville Spain
- Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Seville Spain
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29
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Salzer L, Witting M. Quo Vadis Caenorhabditis elegans Metabolomics-A Review of Current Methods and Applications to Explore Metabolism in the Nematode. Metabolites 2021; 11:metabo11050284. [PMID: 33947148 PMCID: PMC8146106 DOI: 10.3390/metabo11050284] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 12/11/2022] Open
Abstract
Metabolomics and lipidomics recently gained interest in the model organism Caenorhabditis elegans (C. elegans). The fast development, easy cultivation and existing forward and reverse genetic tools make the small nematode an ideal organism for metabolic investigations in development, aging, different disease models, infection, or toxicology research. The conducted type of analysis is strongly depending on the biological question and requires different analytical approaches. Metabolomic analyses in C. elegans have been performed using nuclear magnetic resonance (NMR) spectroscopy, direct infusion mass spectrometry (DI-MS), gas-chromatography mass spectrometry (GC-MS) and liquid chromatography mass spectrometry (LC-MS) or combinations of them. In this review we provide general information on the employed techniques and their advantages and disadvantages in regard to C. elegans metabolomics. Additionally, we reviewed different fields of application, e.g., longevity, starvation, aging, development or metabolism of secondary metabolites such as ascarosides or maradolipids. We also summarised applied bioinformatic tools that recently have been used for the evaluation of metabolomics or lipidomics data from C. elegans. Lastly, we curated metabolites and lipids from the reviewed literature, enabling a prototypic collection which serves as basis for a future C. elegans specific metabolome database.
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Affiliation(s)
- Liesa Salzer
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany;
| | - Michael Witting
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany;
- Metabolomics and Proteomics Core, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
- Chair of Analytical Food Chemistry, TUM School of Life Sciences, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354 Freising, Germany
- Correspondence:
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30
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Zimmermann A, Madreiter-Sokolowski C, Stryeck S, Abdellatif M. Targeting the Mitochondria-Proteostasis Axis to Delay Aging. Front Cell Dev Biol 2021; 9:656201. [PMID: 33777963 PMCID: PMC7991595 DOI: 10.3389/fcell.2021.656201] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 02/22/2021] [Indexed: 01/18/2023] Open
Abstract
Human life expectancy continues to grow globally, and so does the prevalence of age-related chronic diseases, causing a huge medical and economic burden on society. Effective therapeutic options for these disorders are scarce, and even if available, are typically limited to a single comorbidity in a multifaceted dysfunction that inevitably affects all organ systems. Thus, novel therapies that target fundamental processes of aging itself are desperately needed. In this article, we summarize current strategies that successfully delay aging and related diseases by targeting mitochondria and protein homeostasis. In particular, we focus on autophagy, as a fundamental proteostatic process that is intimately linked to mitochondrial quality control. We present genetic and pharmacological interventions that effectively extend health- and life-span by acting on specific mitochondrial and pro-autophagic molecular targets. In the end, we delve into the crosstalk between autophagy and mitochondria, in what we refer to as the mitochondria-proteostasis axis, and explore the prospect of targeting this crosstalk to harness maximal therapeutic potential of anti-aging interventions.
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Affiliation(s)
- Andreas Zimmermann
- Institute of Molecular Biosciences, University of Graz, Graz, Austria.,Field of Excellence BioHealth - University of Graz, Graz, Austria
| | | | - Sarah Stryeck
- Institute of Interactive Systems and Data Science, Graz University of Technology, Graz, Austria
| | - Mahmoud Abdellatif
- Department of Cardiology, Medical University of Graz, Graz, Austria.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.,Centre de Recherche des Cordeliers, Equipe Labellisée Par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Institut Universitaire de France, Paris, France
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31
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La Spina M, Contreras PS, Rissone A, Meena NK, Jeong E, Martina JA. MiT/TFE Family of Transcription Factors: An Evolutionary Perspective. Front Cell Dev Biol 2021; 8:609683. [PMID: 33490073 PMCID: PMC7815692 DOI: 10.3389/fcell.2020.609683] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022] Open
Abstract
Response and adaptation to stress are critical for the survival of all living organisms. The regulation of the transcriptional machinery is an important aspect of these complex processes. The members of the microphthalmia (MiT/TFE) family of transcription factors, apart from their involvement in melanocyte biology, are emerging as key players in a wide range of cellular functions in response to a plethora of internal and external stresses. The MiT/TFE proteins are structurally related and conserved through evolution. Their tissue expression and activities are highly regulated by alternative splicing, promoter usage, and posttranslational modifications. Here, we summarize the functions of MiT/TFE proteins as master transcriptional regulators across evolution and discuss the contribution of animal models to our understanding of the various roles of these transcription factors. We also highlight the importance of deciphering transcriptional regulatory mechanisms in the quest for potential therapeutic targets for human diseases, such as lysosomal storage disorders, neurodegeneration, and cancer.
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Affiliation(s)
- Martina La Spina
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
| | - Pablo S Contreras
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
| | - Alberto Rissone
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
| | - Naresh K Meena
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
| | - Eutteum Jeong
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
| | - José A Martina
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
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Mkrtchyan GV, Abdelmohsen K, Andreux P, Bagdonaite I, Barzilai N, Brunak S, Cabreiro F, de Cabo R, Campisi J, Cuervo AM, Demaria M, Ewald CY, Fang EF, Faragher R, Ferrucci L, Freund A, Silva-García CG, Georgievskaya A, Gladyshev VN, Glass DJ, Gorbunova V, de Grey A, He WW, Hoeijmakers J, Hoffmann E, Horvath S, Houtkooper RH, Jensen MK, Jensen MB, Kane A, Kassem M, de Keizer P, Kennedy B, Karsenty G, Lamming DW, Lee KF, MacAulay N, Mamoshina P, Mellon J, Molenaars M, Moskalev A, Mund A, Niedernhofer L, Osborne B, Pak HH, Parkhitko A, Raimundo N, Rando TA, Rasmussen LJ, Reis C, Riedel CG, Franco-Romero A, Schumacher B, Sinclair DA, Suh Y, Taub PR, Toiber D, Treebak JT, Valenzano DR, Verdin E, Vijg J, Young S, Zhang L, Bakula D, Zhavoronkov A, Scheibye-Knudsen M. ARDD 2020: from aging mechanisms to interventions. Aging (Albany NY) 2020; 12:24484-24503. [PMID: 33378272 PMCID: PMC7803558 DOI: 10.18632/aging.202454] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/12/2020] [Indexed: 02/07/2023]
Abstract
Aging is emerging as a druggable target with growing interest from academia, industry and investors. New technologies such as artificial intelligence and advanced screening techniques, as well as a strong influence from the industry sector may lead to novel discoveries to treat age-related diseases. The present review summarizes presentations from the 7th Annual Aging Research and Drug Discovery (ARDD) meeting, held online on the 1st to 4th of September 2020. The meeting covered topics related to new methodologies to study aging, knowledge about basic mechanisms of longevity, latest interventional strategies to target the aging process as well as discussions about the impact of aging research on society and economy. More than 2000 participants and 65 speakers joined the meeting and we already look forward to an even larger meeting next year. Please mark your calendars for the 8th ARDD meeting that is scheduled for the 31st of August to 3rd of September, 2021, at Columbia University, USA.
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Affiliation(s)
- Garik V. Mkrtchyan
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Kotb Abdelmohsen
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Pénélope Andreux
- Amazentis SA, EPFL Innovation Park, Bâtiment C, Lausanne, Switzerland
| | - Ieva Bagdonaite
- Center for Glycomics, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Nir Barzilai
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Institute for Aging Research, Department of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Søren Brunak
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark
| | - Filipe Cabreiro
- Institute of Clinical Sciences, Imperial College London, Hammersmith Hospital Campus, London, W12 0NN, UK
| | - Rafael de Cabo
- Experimental Gerontology Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Ana Maria Cuervo
- Department of Developmental and Molecular Biology, Institute for Aging Studies, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Marco Demaria
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, The Netherlands
| | - Collin Y. Ewald
- Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute for Technology Zürich, Switzerland
| | - Evandro Fei Fang
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1478 Lørenskog, Norway
| | - Richard Faragher
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK
| | - Luigi Ferrucci
- Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Adam Freund
- Calico Life Sciences, LLC, South San Francisco, CA 94080, USA
| | - Carlos G. Silva-García
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
| | | | - Vadim N. Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - David J. Glass
- Regeneron Pharmaceuticals, Inc. Tarrytown, NY 10591, USA
| | - Vera Gorbunova
- Departments of Biology and Medicine, University of Rochester, Rochester, NY 14627, USA
| | | | - Wei-Wu He
- Human Longevity Inc., San Diego, CA 92121, USA
| | - Jan Hoeijmakers
- Department of Genetics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Eva Hoffmann
- DNRF Center for Chromosome Stability, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Steve Horvath
- Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Riekelt H. Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Majken K. Jensen
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | | | - Alice Kane
- Blavatnik Institute, Department of Genetics, Paul F. Glenn Center for Biology of Aging Research at Harvard Medical School, Boston, MA 94107, USA
| | - Moustapha Kassem
- Molecular Endocrinology Unit, Department of Endocrinology, University Hospital of Odense and University of Southern Denmark, Odense, Denmark
| | - Peter de Keizer
- Department of Molecular Cancer Research, Center for Molecular Medicine, Division of Biomedical Genetics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Brian Kennedy
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Departments of Biochemistry and Physiology, Yong Loo Lin School of Medicine, National University Singapore, Singapore
- Centre for Healthy Ageing, National University Healthy System, Singapore
| | - Gerard Karsenty
- Department of Genetics and Development, Columbia University Medical Center, New York, NY 10032, USA
| | - Dudley W. Lamming
- Department of Medicine, University of Wisconsin-Madison and William S. Middleton Memorial Veterans Hospital, Madison, WI 53792, USA
| | - Kai-Fu Lee
- Sinovation Ventures and Sinovation AI Institute, Beijing, China
| | - Nanna MacAulay
- Department of Neuroscience, University of Copenhagen, Denmark
| | - Polina Mamoshina
- Deep Longevity Inc., Hong Kong Science and Technology Park, Hong Kong
| | - Jim Mellon
- Juvenescence Limited, Douglas, Isle of Man, UK
| | - Marte Molenaars
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Alexey Moskalev
- Institute of Biology of FRC Komi Science Center of Ural Division of RAS, Syktyvkar, Russia
| | - Andreas Mund
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark
| | - Laura Niedernhofer
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Brenna Osborne
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Heidi H. Pak
- Department of Medicine, University of Wisconsin-Madison and William S. Middleton Memorial Veterans Hospital, Madison, WI 53792, USA
| | | | - Nuno Raimundo
- Institute of Cellular Biochemistry, University Medical Center Goettingen, Goettingen, Germany
| | - Thomas A. Rando
- Department of Neurology and Neurological Sciences and Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Lene Juel Rasmussen
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | | | - Christian G. Riedel
- Department of Biosciences and Nutrition, Karolinska Institute, Stockholm, Sweden
| | | | - Björn Schumacher
- Institute for Genome Stability in Ageing and Disease, Medical Faculty, University of Cologne, Cologne, Germany
| | - David A. Sinclair
- Blavatnik Institute, Department of Genetics, Paul F. Glenn Center for Biology of Aging Research at Harvard Medical School, Boston, MA 94107, USA
- Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, NSW, Australia
| | - Yousin Suh
- Departments of Obstetrics and Gynecology, Genetics and Development, Columbia University, New York, NY 10027, USA
| | - Pam R. Taub
- Division of Cardiovascular Medicine, University of California, San Diego, CA 92093, USA
| | - Debra Toiber
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Jonas T. Treebak
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | | | - Eric Verdin
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Jan Vijg
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | | | - Lei Zhang
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Daniela Bakula
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Alex Zhavoronkov
- Insilico Medicine, Hong Kong Science and Technology Park, Hong Kong
| | - Morten Scheibye-Knudsen
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
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Gil-Hernández A, Silva-Palacios A. Relevance of endoplasmic reticulum and mitochondria interactions in age-associated diseases. Ageing Res Rev 2020; 64:101193. [PMID: 33069818 DOI: 10.1016/j.arr.2020.101193] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/29/2020] [Accepted: 10/05/2020] [Indexed: 02/06/2023]
Abstract
Although the elixir of youth remains in the darkness, medical and scientific advances have succeeded in increasing human longevity; however, the predisposition to disease and its high economic cost are raising. Different strategies (e.g., antioxidants) and signaling pathways (e.g., Nrf2) have been identified to help regulate disease progression, nevertheless, there are still missing links that we need to understand. Contact sites called mitochondria-associated membranes (MAM) allow bi-directional communication between organelles as part of the essential functions in the cell to maintain its homeostasis. Different groups have deeply studied the role of MAM in aging; however, it's necessary to analyze their involvement in the progression of age-related diseases. In this review, we highlight the role of contact sites in these conditions, as well as the morphological and functional changes of mitochondria and ER in aging. We emphasize the intimate relationship between both organelles as a reflection of the biological processes that take place in the cell to try to regulate the deterioration characteristic of the aging process; proposing MAM as a potential target to help limit the disease progression with age.
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van der Rijt S, Molenaars M, McIntyre RL, Janssens GE, Houtkooper RH. Integrating the Hallmarks of Aging Throughout the Tree of Life: A Focus on Mitochondrial Dysfunction. Front Cell Dev Biol 2020; 8:594416. [PMID: 33324647 PMCID: PMC7726203 DOI: 10.3389/fcell.2020.594416] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/04/2020] [Indexed: 12/14/2022] Open
Abstract
Since the identification and definition of the hallmarks of aging, these aspects of molecular and cellular decline have been most often described as isolated or distinct mechanisms. However, there is significant evidence demonstrating interplay between most of these hallmarks and that they have the capacity to influence and regulate one another. These interactions are demonstrable across the tree of life, yet not all aspects are conserved. Here, we describe an integrative view on the hallmarks of aging by using the hallmark "mitochondrial dysfunction" as a focus point, and illustrate its capacity to both influence and be influenced by the other hallmarks of aging. We discuss the effects of mitochondrial pathways involved in aging, such as oxidative phosphorylation, mitochondrial dynamics, mitochondrial protein synthesis, mitophagy, reactive oxygen species and mitochondrial DNA damage in relation to each of the primary, antagonistic and integrative hallmarks. We discuss the similarities and differences in these interactions throughout the tree of life, and speculate how speciation may play a role in the variation in these mechanisms. We propose that the hallmarks are critically intertwined, and that mapping the full extent of these interactions would be of significant benefit to the aging research community.
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Affiliation(s)
- Sanne van der Rijt
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Marte Molenaars
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Rebecca L McIntyre
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Georges E Janssens
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Riekelt H Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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Abstract
In this issue, Liu et al. (2019. J. Cell. Biol.https://doi.org/10.1083/jcb.201907067) find that the inhibition of mitochondrial ribosomes in combination with impaired mitochondrial fission or fusion increases C. elegans lifespan by activating the transcription factor HLH-30, which promotes lysosomal biogenesis.
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Affiliation(s)
| | - Cole M. Haynes
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA
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36
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Molenaars M, Janssens GE, Williams EG, Jongejan A, Lan J, Rabot S, Joly F, Moerland PD, Schomakers BV, Lezzerini M, Liu YJ, McCormick MA, Kennedy BK, van Weeghel M, van Kampen AHC, Aebersold R, MacInnes AW, Houtkooper RH. A Conserved Mito-Cytosolic Translational Balance Links Two Longevity Pathways. Cell Metab 2020; 31:549-563.e7. [PMID: 32084377 PMCID: PMC7214782 DOI: 10.1016/j.cmet.2020.01.011] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 08/22/2019] [Accepted: 01/22/2020] [Indexed: 12/13/2022]
Abstract
Slowing down translation in either the cytosol or the mitochondria is a conserved longevity mechanism. Here, we found a non-interventional natural correlation of mitochondrial and cytosolic ribosomal proteins (RPs) in mouse population genetics, suggesting a translational balance. Inhibiting mitochondrial translation in C. elegans through mrps-5 RNAi repressed cytosolic translation. Transcriptomics integrated with proteomics revealed that this inhibition specifically reduced translational efficiency of mRNAs required in growth pathways while increasing stress response mRNAs. The repression of cytosolic translation and extension of lifespan from mrps-5 RNAi were dependent on atf-5/ATF4 and independent from metabolic phenotypes. We found the translational balance to be conserved in mammalian cells upon inhibiting mitochondrial translation pharmacologically with doxycycline. Lastly, extending this in vivo, doxycycline repressed cytosolic translation in the livers of germ-free mice. These data demonstrate that inhibiting mitochondrial translation initiates an atf-5/ATF4-dependent cascade leading to coordinated repression of cytosolic translation, which could be targeted to promote longevity.
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Affiliation(s)
- Marte Molenaars
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Georges E Janssens
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Evan G Williams
- Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland
| | - Aldo Jongejan
- Bioinformatics Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Jiayi Lan
- Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland
| | - Sylvie Rabot
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Fatima Joly
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Perry D Moerland
- Bioinformatics Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Bauke V Schomakers
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands; Core Facility Metabolomics, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Marco Lezzerini
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Yasmine J Liu
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Mark A McCormick
- Department of Biochemistry and Molecular Biology, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, USA; Autophagy, Inflammation, and Metabolism Center of Biological Research Excellence, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Brian K Kennedy
- Buck Institute for Research on Aging, Novato, CA, USA; Departments of Biochemistry and Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Michel van Weeghel
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands; Core Facility Metabolomics, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Antoine H C van Kampen
- Bioinformatics Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Ruedi Aebersold
- Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland; Faculty of Science, University of Zürich, Switzerland
| | - Alyson W MacInnes
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Riekelt H Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands.
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