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Medkour Y, Mohammad K, Arlia-Ciommo A, Svistkova V, Dakik P, Mitrofanova D, Rodriguez MEL, Junio JAB, Taifour T, Escudero P, Goltsios FF, Soodbakhsh S, Maalaoui H, Simard É, Titorenko VI. Mechanisms by which PE21, an extract from the white willow Salix alba, delays chronological aging in budding yeast. Oncotarget 2019; 10:5780-5816. [PMID: 31645900 PMCID: PMC6791382 DOI: 10.18632/oncotarget.27209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 08/27/2019] [Indexed: 01/05/2023] Open
Abstract
We have recently found that PE21, an extract from the white willow Salix alba, slows chronological aging and prolongs longevity of the yeast Saccharomyces cerevisiae more efficiently than any of the previously known pharmacological interventions. Here, we investigated mechanisms through which PE21 delays yeast chronological aging and extends yeast longevity. We show that PE21 causes a remodeling of lipid metabolism in chronologically aging yeast, thereby instigating changes in the concentrations of several lipid classes. We demonstrate that such changes in the cellular lipidome initiate three mechanisms of aging delay and longevity extension. The first mechanism through which PE21 slows aging and prolongs longevity consists in its ability to decrease the intracellular concentration of free fatty acids. This postpones an age-related onset of liponecrotic cell death promoted by excessive concentrations of free fatty acids. The second mechanism of aging delay and longevity extension by PE21 consists in its ability to decrease the concentrations of triacylglycerols and to increase the concentrations of glycerophospholipids within the endoplasmic reticulum membrane. This activates the unfolded protein response system in the endoplasmic reticulum, which then decelerates an age-related decline in protein and lipid homeostasis and slows down an aging-associated deterioration of cell resistance to stress. The third mechanisms underlying aging delay and longevity extension by PE21 consists in its ability to change lipid concentrations in the mitochondrial membranes. This alters certain catabolic and anabolic processes in mitochondria, thus amending the pattern of aging-associated changes in several key aspects of mitochondrial functionality.
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Affiliation(s)
- Younes Medkour
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Karamat Mohammad
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | | | - Veronika Svistkova
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Pamela Dakik
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Darya Mitrofanova
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | | | | | - Tarek Taifour
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Paola Escudero
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Fani-Fay Goltsios
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Sahar Soodbakhsh
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Hana Maalaoui
- Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Éric Simard
- Idunn Technologies Inc., Rosemere, Quebec J7A 4A5, Canada
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102
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Suzuki K, Yamamoto M, Hernandez-Benitez R, Li Z, Wei C, Soligalla RD, Aizawa E, Hatanaka F, Kurita M, Reddy P, Ocampo A, Hishida T, Sakurai M, Nemeth AN, Nuñez Delicado E, Campistol JM, Magistretti P, Guillen P, Rodriguez Esteban C, Gong J, Yuan Y, Gu Y, Liu GH, López-Otín C, Wu J, Zhang K, Izpisua Belmonte JC. Precise in vivo genome editing via single homology arm donor mediated intron-targeting gene integration for genetic disease correction. Cell Res 2019; 29:804-819. [PMID: 31444470 PMCID: PMC6796851 DOI: 10.1038/s41422-019-0213-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/16/2019] [Indexed: 01/01/2023] Open
Abstract
In vivo genome editing represents a powerful strategy for both understanding basic biology and treating inherited diseases. However, it remains a challenge to develop universal and efficient in vivo genome-editing tools for tissues that comprise diverse cell types in either a dividing or non-dividing state. Here, we describe a versatile in vivo gene knock-in methodology that enables the targeting of a broad range of mutations and cell types through the insertion of a minigene at an intron of the target gene locus using an intracellularly linearized single homology arm donor. As a proof-of-concept, we focused on a mouse model of premature-aging caused by a dominant point mutation, which is difficult to repair using existing in vivo genome-editing tools. Systemic treatment using our new method ameliorated aging-associated phenotypes and extended animal lifespan, thus highlighting the potential of this methodology for a broad range of in vivo genome-editing applications.
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Grants
- DP1 DK113616 NIDDK NIH HHS
- P30 CA014195 NCI NIH HHS
- R01 HL123755 NHLBI NIH HHS
- J.C.I.B. was supported by The Leona M. and Harry B. Helmsley Charitable Trust (2012-PG-MED002), the G. Harold and Leila Y. Mathers Charitable Foundation, NIH (R01HL123755 and 5 DP1 DK113616), The Progeria Research Foundation, The Glenn Foundation, KAUST, The Moxie Foundation, Fundación Dr. Pedro Guillen, AFE and Universidad Católica San Antonio de Murcia (UCAM).
- K.S. was supported by JSPS KAKENHI (15K21762 and 18H04036), Takeda Science Foundation, The Uehara Memorial Foundation, National Institutes of Natural Sciences (BS291007), The Sumitomo Foundation (170220), The Naito Foundation, The Kurata Grants (1350), Mochida Memorial Foundation and The Inamori Foundation.
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Affiliation(s)
- Keiichiro Suzuki
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA.
- Institute for Advanced Co-Creation Studies, Osaka University, Osaka, 560-8531, Japan.
- Graduate School of Engineering Science, Osaka University, Osaka, 560-8531, Japan.
| | - Mako Yamamoto
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | | | - Zhe Li
- Bioengineering, University of California, San Diego, 9500 Gilman Drive, MC0412, La Jolla, CA, 92093-0412, USA
| | - Christopher Wei
- Bioengineering, University of California, San Diego, 9500 Gilman Drive, MC0412, La Jolla, CA, 92093-0412, USA
| | - Rupa Devi Soligalla
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
| | - Emi Aizawa
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Graduate School of Engineering Science, Osaka University, Osaka, 560-8531, Japan
| | - Fumiyuki Hatanaka
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Masakazu Kurita
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
| | - Pradeep Reddy
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Alejandro Ocampo
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Tomoaki Hishida
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Masahiro Sakurai
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
| | - Amy N Nemeth
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Estrella Nuñez Delicado
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
| | - Josep M Campistol
- Hospital Clinic of Barcelona, Carrer Villarroel, 170, 08036, Barcelona, Spain
| | - Pierre Magistretti
- King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Pedro Guillen
- Fundacion Dr. Pedro Guillen, Clinica CEMTRO, Avenida Ventisquero de la Condesa, 4228035, Madrid, Spain
| | | | - Jianhui Gong
- BGI-Shenzhen, Shenzhen, 518083, China
- Guangdong Provincial Key Laboratory of Genome Read and Write, Shenzhen, 518120, China
- Guangdong Provincial Academician Workstation of BGI Synthetic Genomics, BGI-Shenzhen, Guangdong, China
- Shenzhen Engineering Laboratory for Innovative Molecular Diagnostics, Shenzhen, 518120, China
| | - Yilin Yuan
- BGI-Shenzhen, Shenzhen, 518083, China
- Guangdong Provincial Key Laboratory of Genome Read and Write, Shenzhen, 518120, China
- Guangdong Provincial Academician Workstation of BGI Synthetic Genomics, BGI-Shenzhen, Guangdong, China
| | - Ying Gu
- BGI-Shenzhen, Shenzhen, 518083, China
- Guangdong Provincial Key Laboratory of Genome Read and Write, Shenzhen, 518120, China
- Guangdong Provincial Academician Workstation of BGI Synthetic Genomics, BGI-Shenzhen, Guangdong, China
| | - Guang-Hui Liu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Carlos López-Otín
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
| | - Jun Wu
- Universidad Catolica, San Antonio de Murcia, Campus de los Jeronimos, 135, Guadalupe, 30107, Spain
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Kun Zhang
- Bioengineering, University of California, San Diego, 9500 Gilman Drive, MC0412, La Jolla, CA, 92093-0412, USA
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103
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Sharma S, Dixon T, Jung S, Graff EC, Forney LA, Gettys TW, Wanders D. Dietary Methionine Restriction Reduces Inflammation Independent of FGF21 Action. Obesity (Silver Spring) 2019; 27:1305-1313. [PMID: 31207147 PMCID: PMC6656589 DOI: 10.1002/oby.22534] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 04/30/2019] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Methionine restriction (MR) decreases inflammation and improves markers of metabolic disease in rodents. MR also increases hepatic and circulating concentrations of fibroblast growth factor 21 (FGF21). Emerging evidence has suggested that FGF21 exerts anti-inflammatory effects. The purpose of this study was to determine the role of FGF21 in mediating the MR-induced reduction in inflammation. METHODS Wild-type and Fgf21-/- mice were fed a high-fat (HF) control or HF-MR diet for 8 weeks. In a separate experiment, mice were fed a HF diet (HFD) for 10 weeks. Vehicle or recombinant FGF21 (13.6 µg/d) was administered via osmotic minipump for an additional 2 weeks. Inflammation and metabolic parameters were measured. RESULTS Fgf21-/- mice were more susceptible to HFD-induced inflammation, and MR reduced inflammation in white adipose tissue (WAT) and liver of Fgf21-/- mice. MR downregulated activity of signal transducer and activator of transcription 3 in WAT of both genotypes. FGF21 administration reduced hepatic lipids and blood glucose concentrations. However, there was little effect of FGF21 on inflammatory gene expression in liver or adipose tissue or circulating cytokines. CONCLUSIONS MR reduces inflammation independent of FGF21 action. Endogenous FGF21 is important to protect against the development of HFD-induced inflammation in liver and WAT, yet administration of low-dose FGF21 has little effect on markers of inflammation.
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Affiliation(s)
- Shaligram Sharma
- Department of Nutrition, Georgia State University, Atlanta, GA, USA
| | - Taylor Dixon
- Department of Nutrition, Georgia State University, Atlanta, GA, USA
| | - Sean Jung
- Department of Nutrition, Georgia State University, Atlanta, GA, USA
| | - Emily C. Graff
- Department of Pathobiology, Auburn University, Auburn, AL, USA
| | - Laura A. Forney
- Laboratory of Nutrient Sensing and Adipocyte Signaling, Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Thomas W. Gettys
- Laboratory of Nutrient Sensing and Adipocyte Signaling, Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Desiree Wanders
- Department of Nutrition, Georgia State University, Atlanta, GA, USA
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104
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Viltard M, Durand S, Pérez-Lanzón M, Aprahamian F, Lefevre D, Leroy C, Madeo F, Kroemer G, Friedlander G. The metabolomic signature of extreme longevity: naked mole rats versus mice. Aging (Albany NY) 2019; 11:4783-4800. [PMID: 31346149 PMCID: PMC6682510 DOI: 10.18632/aging.102116] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 07/16/2019] [Indexed: 04/11/2023]
Abstract
The naked mole-rat (Heterocephalus glaber) is characterized by a more than tenfold higher life expectancy compared to another rodent species of the same size, namely, the laboratory mouse (Mus musculus). We used mass spectrometric metabolomics to analyze circulating plasma metabolites in both species at different ages. Interspecies differences were much more pronounced than age-associated alterations in the metabolome. Such interspecies divergences affected multiple metabolic pathways involving amino, bile and fatty acids as well as monosaccharides and nucleotides. The most intriguing metabolites were those that had previously been linked to pro-health and antiaging effects in mice and that were significantly increased in the long-lived rodent compared to its short-lived counterpart. This pattern applies to α-tocopherol (also known as vitamin E) and polyamines (in particular cadaverine, N8-acetylspermidine and N1,N8-diacetylspermidine), all of which were more abundant in naked mole-rats than in mice. Moreover, the age-associated decline in spermidine and N1-acetylspermidine levels observed in mice did not occur, or is even reversed (in the case of N1-acetylspermidine) in naked mole-rats. In short, the present metabolomics analysis provides a series of testable hypotheses to explain the exceptional longevity of naked mole-rats.
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Affiliation(s)
- Mélanie Viltard
- Fondation pour la Recherche en Physiologie, Brussels, Belgium
| | - Sylvère Durand
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
| | - Maria Pérez-Lanzón
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
- Faculté de Médecine, Université de Paris Saclay, Kremlin Bicêtre, France
| | - Fanny Aprahamian
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
| | - Deborah Lefevre
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
| | - Christine Leroy
- INSERM UMR_S1151 CNRS UMR8253 Institut Necker-Enfants Malades (INEM), Paris, France
| | - Frank Madeo
- Institute of Molecular Biosciences, University of Graz, NAWI Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
| | - Guido Kroemer
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
- Suzhou Institute for Systems Medicine, Chinese Academy of Sciences, Suzhou, China
- Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Gérard Friedlander
- INSERM UMR_S1151 CNRS UMR8253 Institut Necker-Enfants Malades (INEM), Paris, France
- Service de Physiologie et Explorations Fonctionnelles, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, France
- Université de Paris - Paris Descartes, Faculté de Médecine, Paris, France
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105
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Healthspan and lifespan extension by fecal microbiota transplantation into progeroid mice. Nat Med 2019; 25:1234-1242. [PMID: 31332389 DOI: 10.1038/s41591-019-0504-5] [Citation(s) in RCA: 307] [Impact Index Per Article: 61.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 05/30/2019] [Indexed: 12/17/2022]
Abstract
The gut microbiome is emerging as a key regulator of several metabolic, immune and neuroendocrine pathways1,2. Gut microbiome deregulation has been implicated in major conditions such as obesity, type 2 diabetes, cardiovascular disease, non-alcoholic fatty acid liver disease and cancer3-6, but its precise role in aging remains to be elucidated. Here, we find that two different mouse models of progeria are characterized by intestinal dysbiosis with alterations that include an increase in the abundance of Proteobacteria and Cyanobacteria, and a decrease in the abundance of Verrucomicrobia. Consistent with these findings, we found that human progeria patients also display intestinal dysbiosis and that long-lived humans (that is, centenarians) exhibit a substantial increase in Verrucomicrobia and a reduction in Proteobacteria. Fecal microbiota transplantation from wild-type mice enhanced healthspan and lifespan in both progeroid mouse models, and transplantation with the verrucomicrobia Akkermansia muciniphila was sufficient to exert beneficial effects. Moreover, metabolomic analysis of ileal content points to the restoration of secondary bile acids as a possible mechanism for the beneficial effects of reestablishing a healthy microbiome. Our results demonstrate that correction of the accelerated aging-associated intestinal dysbiosis is beneficial, suggesting the existence of a link between aging and the gut microbiota that provides a rationale for microbiome-based interventions against age-related diseases.
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106
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Jonsson WO, Margolies NS, Anthony TG. Dietary Sulfur Amino Acid Restriction and the Integrated Stress Response: Mechanistic Insights. Nutrients 2019; 11:nu11061349. [PMID: 31208042 PMCID: PMC6627990 DOI: 10.3390/nu11061349] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/07/2019] [Accepted: 06/11/2019] [Indexed: 12/17/2022] Open
Abstract
Dietary sulfur amino acid restriction, also referred to as methionine restriction, increases food intake and energy expenditure and alters body composition in rodents, resulting in improved metabolic health and a longer lifespan. Among the known nutrient-responsive signaling pathways, the evolutionary conserved integrated stress response (ISR) is a lesser-understood candidate in mediating the hormetic effects of dietary sulfur amino acid restriction (SAAR). A key feature of the ISR is the concept that a family of protein kinases phosphorylates eukaryotic initiation factor 2 (eIF2), dampening general protein synthesis to conserve cellular resources. This slowed translation simultaneously allows for preferential translation of genes with special sequence features in the 5' leader. Among this class of mRNAs is activating transcription factor 4 (ATF4), an orchestrator of transcriptional control during nutrient stress. Several ATF4 gene targets help execute key processes affected by SAAR such as lipid metabolism, the transsulfuration pathway, and antioxidant defenses. Exploration of the canonical ISR demonstrates that eIF2 phosphorylation is not necessary for ATF4-driven changes in the transcriptome during SAAR. Additional research is needed to clarify the regulation of ATF4 and its gene targets during SAAR.
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Affiliation(s)
- William O Jonsson
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ 08901, USA.
| | - Nicholas S Margolies
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ 08901, USA.
| | - Tracy G Anthony
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ 08901, USA.
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107
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Nutrient Sensing and Redox Balance: GCN2 as a New Integrator in Aging. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:5730532. [PMID: 31249645 PMCID: PMC6556294 DOI: 10.1155/2019/5730532] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 04/21/2019] [Indexed: 02/05/2023]
Abstract
Aging is a complex process in which the accumulation of molecular, cellular, and organism dysfunction increases the probability of death. Several pieces of evidence have revealed a contribution of stress responses in aging and in aging-related diseases, in particular, the key role of signaling pathways associated to nutritional stress. Here, we review the possible interplay between amino acid sensing and redox balance maintenance mediated by the nutritional sensor general control nonderepressive 2 (GCN2). We discuss this new dimension of nutritional stress sensing consequences, standing out GCN2 as a central coordinator of key cellular processes that assure healthy homeostasis in the cell, raising GCN2 as a novel interesting target, that when activated, could imply pleiotropic benefits, particularly GCN2 intervention and its new unexplored therapeutic role as a player in the aging process.
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108
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Jin LH, Fang ZP, Fan MJ, Huang WD. Bile-ology: from bench to bedside. J Zhejiang Univ Sci B 2019; 20:414-427. [PMID: 31090267 PMCID: PMC6568232 DOI: 10.1631/jzus.b1900158] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 04/05/2019] [Indexed: 12/13/2022]
Abstract
Bile acids (BAs) are originally known as detergents essential for the digestion and absorption of lipids. In recent years, extensive research has unveiled new functions of BAs as gut hormones that modulate physiological and pathological processes, including glucose and lipid metabolism, energy expenditure, inflammation, tumorigenesis, cardiovascular disease, and even the central nervous system in addition to cholesterol homeostasis, enterohepatic protection and liver regeneration. BAs are closely linked with gut microbiota which might explain some of their crucial roles in organs. The signaling actions of BAs can also be mediated through specific nuclear receptors and membrane-bound G protein-coupled receptors. Several pharmacological agents or bariatric surgeries have demonstrated efficacious therapeutic effects on metabolic diseases through targeting BA signaling. In this mini-review, we summarize recent advances in bile-ology, focusing on its translational studies.
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Affiliation(s)
- Li-hua Jin
- Department of Diabetes Complications and Metabolism, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
- State Key Laboratory of Cellular Stress Biology; Innovation Center for Cell Signaling Network; School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Zhi-peng Fang
- Department of Diabetes Complications and Metabolism, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Min-jie Fan
- College of Life Science, Zhejiang University, Hangzhou 310058, China
| | - Wen-dong Huang
- Department of Diabetes Complications and Metabolism, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
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109
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Brzački V, Mladenović B, Dimić D, Jeremić L, Živanović D, Djukić D, Stojanović NM, Sokolović DT. Comparison between the effects of selenomethionine and S-adenosylmethionine in preventing cholestasis-induced rat liver damage. Amino Acids 2019; 51:795-803. [DOI: 10.1007/s00726-019-02716-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 02/28/2019] [Indexed: 01/09/2023]
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110
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The Cutting Edge: The Role of mTOR Signaling in Laminopathies. Int J Mol Sci 2019; 20:ijms20040847. [PMID: 30781376 PMCID: PMC6412338 DOI: 10.3390/ijms20040847] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 12/29/2022] Open
Abstract
The mechanistic target of rapamycin (mTOR) is a ubiquitous serine/threonine kinase that regulates anabolic and catabolic processes, in response to environmental inputs. The existence of mTOR in numerous cell compartments explains its specific ability to sense stress, execute growth signals, and regulate autophagy. mTOR signaling deregulation is closely related to aging and age-related disorders, among which progeroid laminopathies represent genetically characterized clinical entities with well-defined phenotypes. These diseases are caused by LMNA mutations and feature altered bone turnover, metabolic dysregulation, and mild to severe segmental progeria. Different LMNA mutations cause muscular, adipose tissue and nerve pathologies in the absence of major systemic involvement. This review explores recent advances on mTOR involvement in progeroid and tissue-specific laminopathies. Indeed, hyper-activation of protein kinase B (AKT)/mTOR signaling has been demonstrated in muscular laminopathies, and rescue of mTOR-regulated pathways increases lifespan in animal models of Emery-Dreifuss muscular dystrophy. Further, rapamycin, the best known mTOR inhibitor, has been used to elicit autophagy and degradation of mutated lamin A or progerin in progeroid cells. This review focuses on mTOR-dependent pathogenetic events identified in Emery-Dreifuss muscular dystrophy, LMNA-related cardiomyopathies, Hutchinson-Gilford Progeria, mandibuloacral dysplasia, and type 2 familial partial lipodystrophy. Pharmacological application of mTOR inhibitors in view of therapeutic strategies is also discussed.
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111
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Yang Y, Zhang Y, Xu Y, Luo T, Ge Y, Jiang Y, Shi Y, Sun J, Le G. Dietary methionine restriction improves the gut microbiota and reduces intestinal permeability and inflammation in high-fat-fed mice. Food Funct 2019; 10:5952-5968. [DOI: 10.1039/c9fo00766k] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Dietary methionine restriction improved the intestinal microbiota composition, barrier function, oxidative stress, and inflammation in high-fat-fed mice.
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Affiliation(s)
- Yuhui Yang
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- China
- College of Grain and Food Science
| | - Yuanhong Zhang
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- China
| | - Yuncong Xu
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- China
| | - Tingyu Luo
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- China
| | - Yueting Ge
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- China
| | - Yuge Jiang
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- China
| | - Yonghui Shi
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- China
| | - Jin Sun
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- China
| | - Guowei Le
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi
- China
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Bárcena C, López-Otín C, Kroemer G. Methionine restriction for improving progeria: another autophagy-inducing anti-aging strategy? Autophagy 2018; 15:558-559. [PMID: 30304972 DOI: 10.1080/15548627.2018.1533059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Methionine restriction, i.e., a partial depletion of the essential sulfur amino acid methionine from nutrition, extends lifespan in model organisms including yeast, nematodes, mice and rats. Recent results indicate that this strategy also prolongs health span and longevity in 2 short-lived strains of mice (with the LmnaG609G/G609G or zmpste24-/- genotypes) that represent animal models of Hutchinson-Gilford progeria syndrome (HGPS). The beneficial effects of methionine restriction on HGPS could be linked to reduced inflammation, and improved DNA stability, as well as the normalization of lipid and bile acid metabolism. Previous work has established that behavioral, nutritional, pharmacological and genetic manipulations that extend longevity in model organisms are only efficient if they induce increased autophagic flux. Methionine restriction extends lifespan in Saccharomyces cerevisiae in an Atg5- and Atg7-dependent fashion, supporting the notion that methionine restriction may indeed mediate its antiaging effects through the induction of macroautophagy/autophagy as well. Based on these findings, we speculate that autophagy might constitute an actionable therapeutic target to treat progeroid syndromes.
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Affiliation(s)
- Clea Bárcena
- a Departamento de Bioquímica y Biología Molecular, Facultad de Medicina , Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo , Oviedo , Spain.,b Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) , Madrid , Spain
| | - Carlos López-Otín
- a Departamento de Bioquímica y Biología Molecular, Facultad de Medicina , Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo , Oviedo , Spain.,b Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) , Madrid , Spain
| | - Guido Kroemer
- c Gustave Roussy Cancer Campus , Villejuif , France.,d INSERM, U1138 , Paris , France.,e Equipe 11 labellisée par la Ligue Nationale contre le Cancer , Centre de Recherche des Cordeliers , Paris , France.,f Université Paris Descartes/Paris V, Sorbonne Paris Cité , Paris , France.,g Sorbonne Université , Paris , France.,h Université Paris-Sud/Paris XI, Faculté de Médecine , Kremlin-Bicêtre , France.,i Metabolomics and Cell Biology Platforms , Gustave Roussy Cancer Campus , Villejuif , France.,j Pôle de Biologie, Hôpital Européen Georges Pompidou , Karolinska Institute, AP-HP , Paris , France.,k Department of Women's and Children's Health , Karolinska University Hospital , Stockholm , Sweden
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