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  1. Article ; Online: Mitochondrial cross-compartmental signalling to maintain proteostasis and longevity.

    Molenaars, Marte / Daniels, Eileen G / Meurs, Amber / Janssens, Georges E / Houtkooper, Riekelt H

    Philosophical transactions of the Royal Society of London. Series B, Biological sciences

    2020  Volume 375, Issue 1801, Page(s) 20190414

    Abstract: Lifespan in eukaryotic species can be prolonged by shifting from cellular states favouring growth to those favouring maintenance and stress resistance. For instance, perturbations in mitochondrial oxidative phosphorylation (OXPHOS) can shift cells into ... ...

    Abstract Lifespan in eukaryotic species can be prolonged by shifting from cellular states favouring growth to those favouring maintenance and stress resistance. For instance, perturbations in mitochondrial oxidative phosphorylation (OXPHOS) can shift cells into this latter state and extend lifespan. Because mitochondria rely on proteins synthesized from nuclear as well as mitochondrial DNA, they need to constantly send and receive messages from other compartments of the cell in order to function properly and maintain homeostasis, and lifespan extension is often dependent on this cross-compartmental signalling. Here, we describe the mechanisms of bi-directional mitochondrial cross-compartmental signalling resulting in proteostasis and longevity. These proteostasis mechanisms are highly context-dependent, governed by the origin and extent of stress. Furthermore, we discuss the translatability of these mechanisms and explore therapeutic developments, such as the antibiotic studies targeting mitochondria or mitochondria-derived peptides as therapies for age-related diseases such as neurodegeneration and cancer. This article is part of the theme issue 'Retrograde signalling from endosymbiotic organelles'.
    MeSH term(s) Humans ; Longevity ; Mitochondria/physiology ; Neoplasms/therapy ; Neurodegenerative Diseases/therapy ; Proteostasis ; Signal Transduction
    Language English
    Publishing date 2020-05-04
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 208382-6
    ISSN 1471-2970 ; 0080-4622 ; 0264-3839 ; 0962-8436
    ISSN (online) 1471-2970
    ISSN 0080-4622 ; 0264-3839 ; 0962-8436
    DOI 10.1098/rstb.2019.0414
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: From molecular promise to preclinical results: HDAC inhibitors in the race for healthy aging drugs.

    McIntyre, Rebecca L / Daniels, Eileen G / Molenaars, Marte / Houtkooper, Riekelt H / Janssens, Georges E

    EMBO molecular medicine

    2019  Volume 11, Issue 9, Page(s) e9854

    Abstract: Reversing or slowing the aging process brings great promise to treat or prevent age-related disease, and targeting the hallmarks of aging is a strategy to achieve this. Epigenetics affects several if not all of the hallmarks of aging and has therefore ... ...

    Abstract Reversing or slowing the aging process brings great promise to treat or prevent age-related disease, and targeting the hallmarks of aging is a strategy to achieve this. Epigenetics affects several if not all of the hallmarks of aging and has therefore emerged as a central target for intervention. One component of epigenetic regulation involves histone deacetylases (HDAC), which include the "classical" histone deacetylases (of class I, II, and IV) and sirtuin deacetylases (of class III). While targeting sirtuins for healthy aging has been extensively reviewed elsewhere, this review focuses on pharmacologically inhibiting the classical HDACs to promote health and longevity. We describe the theories of how classical HDAC inhibitors may operate to increase lifespan, supported by studies in model organisms. Furthermore, we explore potential mechanisms of how HDAC inhibitors may have such a strong grasp on health and longevity, summarizing their links to other hallmarks of aging. Finally, we show the wide range of age-related preclinical disease models, ranging from neurodegeneration to heart disease, diabetes to sarcopenia, which show improvement upon HDAC inhibition.
    MeSH term(s) Animals ; Drug Evaluation, Preclinical ; Epigenesis, Genetic ; Healthy Aging/drug effects ; Healthy Aging/metabolism ; Histone Deacetylase Inhibitors/administration & dosage ; Histone Deacetylases/genetics ; Histone Deacetylases/metabolism ; Humans ; Longevity/drug effects
    Chemical Substances Histone Deacetylase Inhibitors ; Histone Deacetylases (EC 3.5.1.98)
    Language English
    Publishing date 2019-08-01
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2467145-9
    ISSN 1757-4684 ; 1757-4676
    ISSN (online) 1757-4684
    ISSN 1757-4676
    DOI 10.15252/emmm.201809854
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Anti-retroviral treatment with zidovudine alters pyrimidine metabolism, reduces translation, and extends healthy longevity via ATF-4.

    McIntyre, Rebecca L / Molenaars, Marte / Schomakers, Bauke V / Gao, Arwen W / Kamble, Rashmi / Jongejan, Aldo / van Weeghel, Michel / van Kuilenburg, André B P / Possemato, Richard / Houtkooper, Riekelt H / Janssens, Georges E

    Cell reports

    2022  Volume 42, Issue 1, Page(s) 111928

    Abstract: The human population is aging, and the need for interventions to slow progression of age-related diseases (geroprotective interventions) is growing. Repurposing compounds already used clinically, usually at modified doses, allows rapid implementation of ... ...

    Abstract The human population is aging, and the need for interventions to slow progression of age-related diseases (geroprotective interventions) is growing. Repurposing compounds already used clinically, usually at modified doses, allows rapid implementation of geroprotective pharmaceuticals. Here we find the anti-retroviral nucleoside reverse transcriptase inhibitor (NRTI) zidovudine robustly extends lifespan and health span in C. elegans, independent of electron transport chain impairment or ROS accumulation. Rather, zidovudine treatment modifies pyrimidine metabolism and transcripts related to proteostasis. Testing regulators of mitochondrial stress and proteostasis shows that lifespan extension is dependent on activating transcription factor 4 (ATF-4). ATF-4 regulates longevity induced by mitochondrial stress, specifically communication between mitochondrial and cytosolic translation. Translation is reduced in zidovudine-treated worms, also dependent on ATF-4. Finally, we show ATF-4-dependent lifespan extension induced by didanosine, another NRTI. Altogether, our work elucidates the geroprotective effects of NRTIs such as zidovudine in vivo, via reduction of translation and ATF-4.
    MeSH term(s) Animals ; Humans ; Zidovudine/pharmacology ; Zidovudine/therapeutic use ; Longevity ; Activating Transcription Factor 4 ; Caenorhabditis elegans/physiology ; Reverse Transcriptase Inhibitors/pharmacology ; Reverse Transcriptase Inhibitors/therapeutic use ; Retroviridae ; HIV Infections/drug therapy
    Chemical Substances Zidovudine (4B9XT59T7S) ; Activating Transcription Factor 4 (145891-90-3) ; Reverse Transcriptase Inhibitors
    Language English
    Publishing date 2022-12-30
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2022.111928
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Multi-omics analysis identifies essential regulators of mitochondrial stress response in two wild-type

    Gao, Arwen W / El Alam, Gaby / Lalou, Amélia / Li, Terytty Yang / Molenaars, Marte / Zhu, Yunyun / Overmyer, Katherine A / Shishkova, Evgenia / Hof, Kevin / Bou Sleiman, Maroun / Houtkooper, Riekelt H / Coon, Joshua J / Auwerx, Johan

    iScience

    2022  Volume 25, Issue 2, Page(s) 103734

    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 ... ...

    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
    Language English
    Publishing date 2022-01-05
    Publishing country United States
    Document type Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2022.103734
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Integrating the Hallmarks of Aging Throughout the Tree of Life: A Focus on Mitochondrial Dysfunction.

    van der Rijt, Sanne / Molenaars, Marte / McIntyre, Rebecca L / Janssens, Georges E / Houtkooper, Riekelt H

    Frontiers in cell and developmental biology

    2020  Volume 8, Page(s) 594416

    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 ... ...

    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.
    Language English
    Publishing date 2020-11-26
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2737824-X
    ISSN 2296-634X
    ISSN 2296-634X
    DOI 10.3389/fcell.2020.594416
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A conserved complex lipid signature marks human muscle aging and responds to short-term exercise.

    Janssens, Georges E / Molenaars, Marte / Herzog, Katharina / Grevendonk, Lotte / Remie, Carlijn M E / Vervaart, Martin A T / Elfrink, Hyung L / Wever, Eric J M / Schomakers, Bauke V / Denis, Simone W / Waterham, Hans R / Pras-Raves, Mia L / van Weeghel, Michel / van Kampen, Antoine H C / Tammaro, Alessandra / Butter, Loes M / van der Rijt, Sanne / Florquin, Sandrine / Jongejan, Aldo /
    Moerland, Perry D / Hoeks, Joris / Schrauwen, Patrick / Vaz, Frédéric M / Houtkooper, Riekelt H

    Nature aging

    2024  

    Abstract: Studies in preclinical models suggest that complex lipids, such as phospholipids, play a role in the regulation of longevity. However, identification of universally conserved complex lipid changes that occur during aging, and how these respond to ... ...

    Abstract Studies in preclinical models suggest that complex lipids, such as phospholipids, play a role in the regulation of longevity. However, identification of universally conserved complex lipid changes that occur during aging, and how these respond to interventions, is lacking. Here, to comprehensively map how complex lipids change during aging, we profiled ten tissues in young versus aged mice using a lipidomics platform. Strikingly, from >1,200 unique lipids, we found a tissue-wide accumulation of bis(monoacylglycero)phosphate (BMP) during mouse aging. To investigate translational value, we assessed muscle tissue of young and older people, and found a similar marked BMP accumulation in the human aging lipidome. Furthermore, we found that a healthy-aging intervention consisting of moderate-to-vigorous exercise was able to lower BMP levels in postmenopausal female research participants. Our work implicates complex lipid biology as central to aging, identifying a conserved aging lipid signature of BMP accumulation that is modifiable upon a short-term healthy-aging intervention.
    Language English
    Publishing date 2024-04-12
    Publishing country United States
    Document type Journal Article
    ISSN 2662-8465
    ISSN (online) 2662-8465
    DOI 10.1038/s43587-024-00595-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Mitochondrial ubiquinone-mediated longevity is marked by reduced cytoplasmic mRNA translation.

    Molenaars, Marte / Janssens, Georges E / Santermans, Toon / Lezzerini, Marco / Jelier, Rob / MacInnes, Alyson W / Houtkooper, Riekelt H

    Life science alliance

    2018  Volume 1, Issue 5

    Abstract: Mutations in ... ...

    Abstract Mutations in the
    Language English
    Publishing date 2018-08-24
    Publishing country United States
    Document type Journal Article
    ISSN 2575-1077
    ISSN (online) 2575-1077
    DOI 10.26508/lsa.201800082
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Metabolomics and lipidomics in Caenorhabditis elegans using a single-sample preparation.

    Molenaars, Marte / Schomakers, Bauke V / Elfrink, Hyung L / Gao, Arwen W / Vervaart, Martin A T / Pras-Raves, Mia L / Luyf, Angela C / Smith, Reuben L / Sterken, Mark G / Kammenga, Jan E / van Kampen, Antoine H C / Janssens, Georges E / Vaz, Frédéric M / van Weeghel, Michel / Houtkooper, Riekelt H

    Disease models & mechanisms

    2021  Volume 14, Issue 4

    Abstract: Comprehensive metabolomic and lipidomic mass spectrometry methods are in increasing demand; for instance, in research related to nutrition and aging. The nematode Caenorhabditis elegans is a key model organism in these fields, owing to the large ... ...

    Abstract Comprehensive metabolomic and lipidomic mass spectrometry methods are in increasing demand; for instance, in research related to nutrition and aging. The nematode Caenorhabditis elegans is a key model organism in these fields, owing to the large repository of available C. elegans mutants and their convenient natural lifespan. Here, we describe a robust and sensitive analytical method for the semi-quantitative analysis of >100 polar (metabolomics) and >1000 apolar (lipidomics) metabolites in C. elegans, using a single-sample preparation. Our method is capable of reliably detecting a wide variety of biologically relevant metabolic aberrations in, for example, glycolysis and the tricarboxylic acid cycle, pyrimidine metabolism and complex lipid biosynthesis. In conclusion, we provide a powerful analytical tool that maximizes metabolic data yield from a single sample. This article has an associated First Person interview with the joint first authors of the paper.
    MeSH term(s) Animals ; Caenorhabditis elegans/genetics ; Caenorhabditis elegans/metabolism ; Gene Knockdown Techniques ; Inbreeding ; Lipidomics/methods ; Metabolome ; Metabolomics/methods ; Phospholipids/metabolism ; RNA Interference ; Reproducibility of Results
    Chemical Substances Phospholipids
    Language English
    Publishing date 2021-04-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2451104-3
    ISSN 1754-8411 ; 1754-8403
    ISSN (online) 1754-8411
    ISSN 1754-8403
    DOI 10.1242/dmm.047746
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Inhibition of the neuromuscular acetylcholine receptor with atracurium activates FOXO/DAF-16-induced longevity.

    McIntyre, Rebecca L / Denis, Simone W / Kamble, Rashmi / Molenaars, Marte / Petr, Michael / Schomakers, Bauke V / Rahman, Mizanur / Gupta, Siddhartha / Toth, Marton L / Vanapalli, Siva A / Jongejan, Aldo / Scheibye-Knudsen, Morten / Houtkooper, Riekelt H / Janssens, Georges E

    Aging cell

    2021  Volume 20, Issue 8, Page(s) e13381

    Abstract: Transcriptome-based drug screening is emerging as a powerful tool to identify geroprotective compounds to intervene in age-related disease. We hypothesized that, by mimicking the transcriptional signature of the highly conserved longevity intervention of ...

    Abstract Transcriptome-based drug screening is emerging as a powerful tool to identify geroprotective compounds to intervene in age-related disease. We hypothesized that, by mimicking the transcriptional signature of the highly conserved longevity intervention of FOXO3 (daf-16 in worms) overexpression, we could identify and repurpose compounds with similar downstream effects to increase longevity. Our in silico screen, utilizing the LINCS transcriptome database of genetic and compound interventions, identified several FDA-approved compounds that activate FOXO downstream targets in mammalian cells. These included the neuromuscular blocker atracurium, which also robustly extends both lifespan and healthspan in Caenorhabditis elegans. This longevity is dependent on both daf-16 signaling and inhibition of the neuromuscular acetylcholine receptor subunit unc-38. We found unc-38 RNAi to improve healthspan, lifespan, and stimulate DAF-16 nuclear localization, similar to atracurium treatment. Finally, using RNA-seq transcriptomics, we identify atracurium activation of DAF-16 downstream effectors. Together, these data demonstrate the capacity to mimic genetic lifespan interventions with drugs, and in doing so, reveal that the neuromuscular acetylcholine receptor regulates the highly conserved FOXO/DAF-16 longevity pathway.
    MeSH term(s) Animals ; Atracurium/pharmacology ; Atracurium/therapeutic use ; Caenorhabditis elegans/genetics ; Caenorhabditis elegans Proteins/metabolism ; Forkhead Transcription Factors/metabolism ; Longevity/genetics ; Mice ; Receptors, Cholinergic/metabolism
    Chemical Substances Caenorhabditis elegans Proteins ; Forkhead Transcription Factors ; Receptors, Cholinergic ; daf-16 protein, C elegans ; Atracurium (2GQ1IRY63P)
    Language English
    Publishing date 2021-07-06
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2113083-8
    ISSN 1474-9726 ; 1474-9718
    ISSN (online) 1474-9726
    ISSN 1474-9718
    DOI 10.1111/acel.13381
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Glycine promotes longevity in Caenorhabditis elegans in a methionine cycle-dependent fashion.

    Liu, Yasmine J / Janssens, Georges E / McIntyre, Rebecca L / Molenaars, Marte / Kamble, Rashmi / Gao, Arwen W / Jongejan, Aldo / Weeghel, Michel van / MacInnes, Alyson W / Houtkooper, Riekelt H

    PLoS genetics

    2019  Volume 15, Issue 3, Page(s) e1007633

    Abstract: The deregulation of metabolism is a hallmark of aging. As such, changes in the expression of metabolic genes and the profiles of amino acid levels are features associated with aging animals. We previously reported that the levels of most amino acids ... ...

    Abstract The deregulation of metabolism is a hallmark of aging. As such, changes in the expression of metabolic genes and the profiles of amino acid levels are features associated with aging animals. We previously reported that the levels of most amino acids decline with age in Caenorhabditis elegans (C. elegans). Glycine, in contrast, substantially accumulates in aging C. elegans. In this study we show that this is coupled to a decrease in gene expression of enzymes important for glycine catabolism. We further show that supplementation of glycine significantly prolongs C. elegans lifespan, and early adulthood is important for its salutary effects. Moreover, supplementation of glycine ameliorates specific transcriptional changes that are associated with aging. Glycine feeds into the methionine cycle. We find that mutations in components of this cycle, methionine synthase (metr-1) and S-adenosylmethionine synthetase (sams-1), completely abrogate glycine-induced lifespan extension. Strikingly, the beneficial effects of glycine supplementation are conserved when we supplement with serine, which also feeds into the methionine cycle. RNA-sequencing reveals a similar transcriptional landscape in serine- and glycine-supplemented worms both demarked by widespread gene repression. Taken together, these data uncover a novel role of glycine in the deceleration of aging through its function in the methionine cycle.
    MeSH term(s) Aging/drug effects ; Aging/genetics ; Aging/metabolism ; Animals ; Caenorhabditis elegans/drug effects ; Caenorhabditis elegans/genetics ; Caenorhabditis elegans/metabolism ; Diet ; Genes, Helminth ; Glycine/administration & dosage ; Glycine/metabolism ; Longevity/drug effects ; Longevity/genetics ; Longevity/physiology ; Metabolic Networks and Pathways/genetics ; Methionine/metabolism ; Mutation ; RNA Interference ; Serine/administration & dosage ; Serine/metabolism ; Transcriptome/drug effects
    Chemical Substances Serine (452VLY9402) ; Methionine (AE28F7PNPL) ; Glycine (TE7660XO1C)
    Language English
    Publishing date 2019-03-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2186725-2
    ISSN 1553-7404 ; 1553-7390
    ISSN (online) 1553-7404
    ISSN 1553-7390
    DOI 10.1371/journal.pgen.1007633
    Database MEDical Literature Analysis and Retrieval System OnLINE

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