1
|
Veuthey T, Giunti S, De Rosa MJ, Alkema M, Rayes D. The neurohormone tyramine stimulates the secretion of an Insulin-Like Peptide from the intestine to modulate the systemic stress response in C. elegans. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.06.579207. [PMID: 38370834 PMCID: PMC10871264 DOI: 10.1101/2024.02.06.579207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
The DAF-2/insulin/insulin-like growth factor signaling (IIS) pathway plays an evolutionarily conserved role in regulating reproductive development, lifespan, and stress resistance. In C. elegans , DAF-2/IIS signaling is modulated by an extensive array of insulin-like peptides (ILPs) with diverse spatial and temporal expression patterns. However, the release dynamics and specific functions of these ILPs in adapting to different environmental conditions remain poorly understood. Here, we show that the ILP, INS-3, plays a crucial role in modulating the response to different types of stressors in C. elegans . ins-3 mutants display increased resistance to both heat and oxidative stress; however, under favorable conditions, this advantage is countered by slower reproductive development. ins-3 expression in both neurons and the intestine is downregulated in response to environmental stressors. Conversely, the neurohormone tyramine, which is released during the acute flight response, triggers an upregulation in ins-3 expression. Moreover, we found that tyramine negatively impacts environmental stress resistance by stimulating the release of INS-3 from the intestine. The subsequent release of INS-3 systemically activates the DAF-2 pathway, resulting in the inhibition of cytoprotective mechanisms mediated by DAF-16/FOXO and HSF-1. These studies offer mechanistic insights into the brain-gut communication pathway that weighs adaptive strategies to respond to acute and long-term stress scenarios.
Collapse
|
2
|
Wang Q, Wang L, Huang Z, Xiao Y, Liu M, Liu H, Yu Y, Liang M, Luo N, Li K, Mishra A, Huang Z. Abalone peptide increases stress resilience and cost-free longevity via SKN-1-governed transcriptional metabolic reprogramming in C. elegans. Aging Cell 2024; 23:e14046. [PMID: 37990605 PMCID: PMC10861207 DOI: 10.1111/acel.14046] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 10/30/2023] [Indexed: 11/23/2023] Open
Abstract
A major goal of healthy aging is to prevent declining resilience and increasing frailty, which are associated with many chronic diseases and deterioration of stress response. Here, we propose a loss-or-gain survival model, represented by the ratio of cumulative stress span to life span, to quantify stress resilience at organismal level. As a proof of concept, this is demonstrated by reduced survival resilience in Caenorhabditis elegans exposed to exogenous oxidative stress induced by paraquat or with endogenous proteotoxic stress caused by polyglutamine or amyloid-β aggregation. Based on this, we reveal that a hidden peptide ("cryptide")-AbaPep#07 (SETYELRK)-derived from abalone hemocyanin not only enhances survival resilience against paraquat-induced oxidative stress but also rescues proteotoxicity-mediated behavioral deficits in C. elegans, indicating its capacity against stress and neurodegeneration. Interestingly, AbaPep#07 is also found to increase cost-free longevity and age-related physical fitness in nematodes. We then demonstrate that AbaPep#07 can promote nuclear localization of SKN-1/Nrf, but not DAF-16/FOXO, transcription factor. In contrast to its effects in wild-type nematodes, AbaPep#07 cannot increase oxidative stress survival and physical motility in loss-of-function skn-1 mutant, suggesting an SKN-1/Nrf-dependent fashion of these effects. Further investigation reveals that AbaPep#07 can induce transcriptional activation of immune defense, lipid metabolism, and metabolic detoxification pathways, including many SKN-1/Nrf target genes. Together, our findings demonstrate that AbaPep#07 is able to boost stress resilience and reduce behavioral frailty via SKN-1/Nrf-governed transcriptional reprogramming, and provide an insight into the health-promoting potential of antioxidant cryptides as geroprotectors in aging and associated conditions.
Collapse
Affiliation(s)
- Qiangqiang Wang
- Institute for Food Nutrition and Human Health, School of Food Science and Engineering, South China University of TechnologyGuangzhouChina
- Guangdong Province Key Laboratory for BiocosmeticsGuangzhouChina
| | - Liangyi Wang
- Institute for Food Nutrition and Human Health, School of Food Science and Engineering, South China University of TechnologyGuangzhouChina
- Center for Bioresources and Drug Discovery, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical UniversityGuangzhouChina
| | - Ziliang Huang
- Institute for Food Nutrition and Human Health, School of Food Science and Engineering, South China University of TechnologyGuangzhouChina
- Center for Bioresources and Drug Discovery, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical UniversityGuangzhouChina
| | - Yue Xiao
- Institute for Food Nutrition and Human Health, School of Food Science and Engineering, South China University of TechnologyGuangzhouChina
- Guangdong Province Key Laboratory for BiocosmeticsGuangzhouChina
| | - Mao Liu
- Institute for Food Nutrition and Human Health, School of Food Science and Engineering, South China University of TechnologyGuangzhouChina
- Guangdong Province Key Laboratory for BiocosmeticsGuangzhouChina
| | - Huihui Liu
- Institute for Food Nutrition and Human Health, School of Food Science and Engineering, South China University of TechnologyGuangzhouChina
- Center for Bioresources and Drug Discovery, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical UniversityGuangzhouChina
| | - Yi Yu
- Research and Development Center, Infinitus (China) Company LtdGuangzhouChina
| | - Ming Liang
- Research and Development Center, Infinitus (China) Company LtdGuangzhouChina
| | - Ning Luo
- Institute of Chinese Medicinal Sciences, Guangdong Pharmaceutical UniversityGuangzhouChina
| | - Kunping Li
- Institute of Chinese Medicinal Sciences, Guangdong Pharmaceutical UniversityGuangzhouChina
| | - Ajay Mishra
- European Bioinformatics InstituteCambridgeUK
| | - Zebo Huang
- Institute for Food Nutrition and Human Health, School of Food Science and Engineering, South China University of TechnologyGuangzhouChina
- Guangdong Province Key Laboratory for BiocosmeticsGuangzhouChina
- Center for Bioresources and Drug Discovery, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical UniversityGuangzhouChina
| |
Collapse
|
3
|
Yu S, Shao Y, Qiu Q, Cheng Y, Qing R, Wang CF, Chen S, Xu C. Photo-and thermo-regulation by photonic crystals for extended longevity of C. elegans. Mech Ageing Dev 2023; 212:111819. [PMID: 37120065 DOI: 10.1016/j.mad.2023.111819] [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: 01/09/2023] [Revised: 03/03/2023] [Accepted: 04/25/2023] [Indexed: 05/01/2023]
Abstract
Methods allowing light energy to be modulated in a controllable fashion are potentially important for finding the correlation between light-related environmental factors and aging-related lifespan. Here, we report photo- and thermo-regulation based on photonic crystals (PCs) for extended longevity of C. elegans. We show that PCs can function as a regulator of visible spectrum to tune photonic energy received by C.elegans. We provide direct evidence that lifespan depends on photonic energy, and the use of PCs reflecting blue light (440-537nm) gives 8.3% increasement in lifespan. We demonstrate that the exposure to modulated light alleviates photo-oxidative stress and unfolded-protein response. We realize reflective passive cooling temperature using PCs, and favorable low temperature could be created for worms to extend lifespan. This work offers a new path based on PCs to resist negative effects light and temperature for longevity, provides an available platform for studying the role of light in aging.
Collapse
Affiliation(s)
- Shuzhen Yu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Yating Shao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Qineng Qiu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Yu Cheng
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Renkun Qing
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Cai-Feng Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Chen Xu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China.
| |
Collapse
|
4
|
Santos AL, Sinha S. Ageing, Metabolic Dysfunction, and the Therapeutic Role of Antioxidants. Subcell Biochem 2023; 103:341-435. [PMID: 37120475 DOI: 10.1007/978-3-031-26576-1_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
The gradual ageing of the world population has been accompanied by a dramatic increase in the prevalence of obesity and metabolic diseases, especially type 2 diabetes. The adipose tissue dysfunction associated with ageing and obesity shares many common physiological features, including increased oxidative stress and inflammation. Understanding the mechanisms responsible for adipose tissue dysfunction in obesity may help elucidate the processes that contribute to the metabolic disturbances that occur with ageing. This, in turn, may help identify therapeutic targets for the treatment of obesity and age-related metabolic disorders. Because oxidative stress plays a critical role in these pathological processes, antioxidant dietary interventions could be of therapeutic value for the prevention and/or treatment of age-related diseases and obesity and their complications. In this chapter, we review the molecular and cellular mechanisms by which obesity predisposes individuals to accelerated ageing. Additionally, we critically review the potential of antioxidant dietary interventions to counteract obesity and ageing.
Collapse
Affiliation(s)
- Ana L Santos
- IdISBA - Fundación de Investigación Sanitaria de las Islas Baleares, Palma, Spain.
| | | |
Collapse
|
5
|
Burgos-Díaz C, Opazo-Navarrete M, Palacios JL, Verdugo L, Anguita-Barrales F, Bustamante M. Food-grade bioactive ingredient obtained from the Durvillaea incurvata brown seaweed: Antibacterial activity and antioxidant activity. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
6
|
Zhang W, Liu H, Fu G, Li Y, Ji X, Zhang S, Wei M, Qiao K. Exposure to fluopimomide at sublethal doses causes oxidative stress in Caenorhabditis elegans regulated by insulin/insulin-like growth factor 1-like signaling pathway. ENVIRONMENTAL TOXICOLOGY 2022; 37:2529-2539. [PMID: 35833599 DOI: 10.1002/tox.23616] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 06/29/2022] [Accepted: 07/03/2022] [Indexed: 06/15/2023]
Abstract
Fluopimomide is an innovative pesticide, widely used for agricultural pest management; however, little is known about its effect on non-target organisms. This study was designed to assess the potential risk of fluopimomide and the molecular mechanisms using Caenorhabditis elegans, a common model animal. The oxidative stress-related indicators were analyzed in C. elegans after exposure to fluopimomide for 24 h at three sublethal doses (0.2, 1.0, and 5.0 mg/L). The results demonstrated that sublethal exposure to fluopimomide adversely affected the nematodes growth, locomotive behaviors, reproduction, and lifespan, accompanying with enhanced of reactive oxygen species (ROS) generation, lipid and lipofuscin accumulation, and malondialdehyde content. In addition, exposure to fluopimomide significantly inhibited antioxidant systems including superoxide dismutase, catalase, glutathione S-transferase, and glutathione in the nematodes. Moreover, the expression of oxidative stress-related genes of sod-3, hsp-16.1, gst-4, ctl-2, daf-16, and daf-2 were significantly down-regulated, while the expression of skn-1 was significantly up-regulated. Further evidence revealed that daf-16 and skn-1 mutant strains of C. elegans significantly decreased ROS production upon fluopimomide exposure compared with the wild-type nematodes. Overall, our findings indicated that exposure to fluopimomide at sublethal doses caused oxidative damage, mainly associated with insulin/IGF-1-like signaling pathway in C. elegans. This is the first report of potential toxic effects of fluopimomide even at low concentrations, providing a new insight into the mechanisms of toxicity to C. elegans by fluopimomide.
Collapse
Affiliation(s)
- Weiping Zhang
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
| | - Huimin Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
| | - Guanghan Fu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
| | - Yujie Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
| | - Xiaoxue Ji
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
| | - Shouan Zhang
- Tropical Research and Education Center, Department of Plant Pathology, University of Florida, IFAS, Homestead, Florida, USA
| | - Min Wei
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, People's Republic of China
| | - Kang Qiao
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
| |
Collapse
|
7
|
Kern CC, Gems D. Semelparous Death as one Element of Iteroparous Aging Gone Large. Front Genet 2022; 13:880343. [PMID: 35754809 PMCID: PMC9218716 DOI: 10.3389/fgene.2022.880343] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/11/2022] [Indexed: 11/13/2022] Open
Abstract
The aging process in semelparous and iteroparous species is different, but how different? Death in semelparous organisms (e.g., Pacific salmon) results from suicidal reproductive effort (reproductive death). Aging (senescence) in iteroparous organisms such as humans is often viewed as a quite different process. Recent findings suggest that the nematode Caenorhabditis elegans, widely used to study aging, undergoes reproductive death. In post-reproductive C. elegans hermaphrodites, intestinal biomass is repurposed to produce yolk which when vented serves as a milk to support larval growth. This apparent benefit of lactation comes at the cost of intestinal atrophy in the mother. Germline removal and inhibition of insulin/IGF-1 signaling (IIS) suppress C. elegans reproductive pathology and greatly increase lifespan. Blocking sexual maturity, e.g., by gonadectomy, suppresses reproductive death thereby strongly increasing lifespan in semelparous organisms, but typically has little effect on lifespan in iteroparous ones. Similarly, reduced IIS causes relatively modest increases in lifespan in iteroparous organisms. We argue that the more regulated and plastic mechanisms of senescence in semelparous organisms, involving costly resource reallocation under endocrine control, exist as one extreme of an etiological continuum with mechanisms operative in iteroparous organisms. We suggest that reproductive death evolved by exaggeration of mechanisms operative in iteroparous species, where other mechanisms also promote senescence. Thus, knowledge of C. elegans senescence can guide understanding of mechanisms contributing to human aging.
Collapse
Affiliation(s)
- Carina C Kern
- Institute of Healthy Ageing, Research Department of Genetics, Evolution and Environment, University College London, London, United Kingdom
| | - David Gems
- Institute of Healthy Ageing, Research Department of Genetics, Evolution and Environment, University College London, London, United Kingdom
| |
Collapse
|
8
|
Selig EE, Lynn RJ, Zlatic CO, Mok YF, Ecroyd H, Gooley PR, Griffin MDW. The Monomeric α-Crystallin Domain of the Small Heat-shock Proteins αB-crystallin and Hsp27 Binds Amyloid Fibril Ends. J Mol Biol 2022; 434:167711. [PMID: 35777462 DOI: 10.1016/j.jmb.2022.167711] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 06/05/2022] [Accepted: 06/25/2022] [Indexed: 11/25/2022]
Abstract
Small heat-shock proteins (sHSPs) are ubiquitously expressed molecular chaperones present in all kingdoms of life that inhibit protein misfolding and aggregation. Despite their importance in proteostasis, the structure-function relationships of sHSPs remain elusive. Human sHSPs are characterised by a central, highly conserved α-crystallin domain (ACD) and variable-length N- and C-terminal regions. The ACD forms antiparallel homodimers via an extended β-strand, creating a shared β-sheet at the dimer interface. The N- and C-terminal regions mediate formation of higher order oligomers that are thought to act as storage forms for chaperone-active dimers. We investigated the interactions of the ACD of two human sHSPs, αB-crystallin (αB-C) and Hsp27, with apolipoprotein C-II amyloid fibrils using analytical ultracentrifugation and nuclear magnetic resonance spectroscopy. The ACD was found to interact transiently with amyloid fibrils to inhibit fibril elongation and naturally occurring fibril end-to-end joining. This interaction was sensitive to the concentration of fibril ends indicating a 'fibril-capping' interaction. Furthermore, resonances arising from the ACD monomer were attenuated to a greater extent than those of the ACD dimer in the presence of fibrils, suggesting that the monomer may bind fibrils. This hypothesis was supported by mutagenesis studies in which disulfide cross-linked ACD dimers formed by both αB-C and Hsp27 were less effective at inhibiting amyloid fibril elongation and fibril end-to-end joining than ACD constructs lacking disulfide cross-linking. Our results indicate that sHSP monomers inhibit amyloid fibril elongation, highlighting the importance of the dynamic oligomeric nature of sHSPs for client binding.
Collapse
Affiliation(s)
- Emily E Selig
- Department of Biochemistry and Pharmacology, University of Melbourne, Parkville, Victoria 3010, Australia; Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Roberta J Lynn
- Department of Biochemistry and Pharmacology, University of Melbourne, Parkville, Victoria 3010, Australia; Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Courtney O Zlatic
- Department of Biochemistry and Pharmacology, University of Melbourne, Parkville, Victoria 3010, Australia; Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Yee-Foong Mok
- Department of Biochemistry and Pharmacology, University of Melbourne, Parkville, Victoria 3010, Australia; Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Heath Ecroyd
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia.
| | - Paul R Gooley
- Department of Biochemistry and Pharmacology, University of Melbourne, Parkville, Victoria 3010, Australia; Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Michael D W Griffin
- Department of Biochemistry and Pharmacology, University of Melbourne, Parkville, Victoria 3010, Australia; Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
| |
Collapse
|
9
|
Naranjo-Galindo FJ, Ai R, Fang EF, Nilsen HL, SenGupta T. C. elegans as an Animal Model to Study the Intersection of DNA Repair, Aging and Neurodegeneration. FRONTIERS IN AGING 2022; 3:916118. [PMID: 35821838 PMCID: PMC9261396 DOI: 10.3389/fragi.2022.916118] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/26/2022] [Indexed: 11/13/2022]
Abstract
Since its introduction as a genetic model organism, Caenorhabditis elegans has yielded insights into the causes of aging. In addition, it has provided a molecular understanding of mechanisms of neurodegeneration, one of the devastating effects of aging. However, C. elegans has been less popular as an animal model to investigate DNA repair and genomic instability, which is a major hallmark of aging and also a cause of many rare neurological disorders. This article provides an overview of DNA repair pathways in C. elegans and the impact of DNA repair on aging hallmarks, such as mitochondrial dysfunction, telomere maintenance, and autophagy. In addition, we discuss how the combination of biological characteristics, new technical tools, and the potential of following precise phenotypic assays through a natural life-course make C. elegans an ideal model organism to study how DNA repair impact neurodegeneration in models of common age-related neurodegenerative diseases.
Collapse
Affiliation(s)
- Francisco José Naranjo-Galindo
- Department of Clinical Molecular Biology, University of Oslo, Oslo, Norway
- Section of Clinical Molecular Biology (EpiGen), Akershus University Hospital, Lørenskog, Norway
| | - Ruixue Ai
- Department of Clinical Molecular Biology, University of Oslo, Oslo, Norway
| | - Evandro Fei Fang
- Department of Clinical Molecular Biology, University of Oslo, Oslo, Norway
| | - Hilde Loge Nilsen
- Department of Clinical Molecular Biology, University of Oslo, Oslo, Norway
- Section of Clinical Molecular Biology (EpiGen), Akershus University Hospital, Lørenskog, Norway
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - Tanima SenGupta
- Department of Clinical Molecular Biology, University of Oslo, Oslo, Norway
- Section of Clinical Molecular Biology (EpiGen), Akershus University Hospital, Lørenskog, Norway
| |
Collapse
|
10
|
Taurone S, Ralli M, Artico M, Madia VN, Scarpa S, Nottola SA, Maconi A, Betti M, Familiari P, Nebbioso M, Costi R, Micera A. Oxidative stress and visual system: a review. EXCLI JOURNAL 2022; 21:544-553. [PMID: 35651654 PMCID: PMC9150018 DOI: 10.17179/excli2022-4663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/10/2022] [Indexed: 12/19/2022]
Abstract
Different types of tissues respond differently to the action of oxidative stress. The visual system is very sensitive to oxidative action due to continuous exposure to light. In consideration of the growing interest of scientific studies towards various compounds endowed with antioxidant and anti-inflammatory properties, we performed a review of the literature focusing on the use of some antioxidant molecules for the treatment of conditions affecting the visual system. In this study, we focused on the ability of two antioxidant agents, the small molecule α-lipoic acid (ALA) and the enzyme superoxide dismutase (SOD), to influence the neurodegenerative physiological processes related to aging and oxidative stress affecting the ocular segment. The literature data report that ALA and SOD can protect against neurodegenerative effects both the optic nerve and retina and, if administered together, they are able to lower the levels of oxidative stress, thus preventing neurodegeneration and reducing the apoptotic process.
Collapse
Affiliation(s)
| | - Massimo Ralli
- Department of Sensory Organs, "Sapienza" University of Rome, Rome, Italy
| | - Marco Artico
- Department of Sensory Organs, "Sapienza" University of Rome, Rome, Italy
| | - Valentina Noemi Madia
- Department of Drug Chemistry and Technology, "Sapienza" University of Rome, Rome, Italy
| | - Susanna Scarpa
- Department of Experimental Medicine, "Sapienza" University of Rome, Italy
| | - Stefania Annarita Nottola
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, "Sapienza" University of Rome, Rome, Italy
| | - Antonio Maconi
- Research Training Innovation Infrastructure, Research and Innovation Department, Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Marta Betti
- Research Training Innovation Infrastructure, Research and Innovation Department, Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Pietro Familiari
- Department of Human Neurosciences, "Sapienza" University of Rome, Rome, Italy
| | - Marcella Nebbioso
- Department of Sensory Organs, "Sapienza" University of Rome, Rome, Italy
| | - Roberta Costi
- Department of Drug Chemistry and Technology, "Sapienza" University of Rome, Rome, Italy
| | | |
Collapse
|
11
|
Gems D. The hyperfunction theory: An emerging paradigm for the biology of aging. Ageing Res Rev 2022; 74:101557. [PMID: 34990845 PMCID: PMC7612201 DOI: 10.1016/j.arr.2021.101557] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/24/2021] [Accepted: 12/30/2021] [Indexed: 12/13/2022]
Abstract
The process of senescence (aging) is predominantly determined by the action of wild-type genes. For most organisms, this does not reflect any adaptive function that senescence serves, but rather evolutionary effects of declining selection against genes with deleterious effects later in life. To understand aging requires an account of how evolutionary mechanisms give rise to pathogenic gene action and late-life disease, that integrates evolutionary (ultimate) and mechanistic (proximate) causes into a single explanation. A well-supported evolutionary explanation by G.C. Williams argues that senescence can evolve due to pleiotropic effects of alleles with antagonistic effects on fitness and late-life health (antagonistic pleiotropy, AP). What has remained unclear is how gene action gives rise to late-life disease pathophysiology. One ultimate-proximate account is T.B.L. Kirkwood's disposable soma theory. Based on the hypothesis that stochastic molecular damage causes senescence, this reasons that aging is coupled to reproductive fitness due to preferential investment of resources into reproduction, rather than somatic maintenance. An alternative and more recent ultimate-proximate theory argues that aging is largely caused by programmatic, developmental-type mechanisms. Here ideas about AP and programmatic aging are reviewed, particularly those of M.V. Blagosklonny (the hyperfunction theory) and J.P. de Magalhães (the developmental theory), and their capacity to make sense of diverse experimental findings is assessed.
Collapse
Affiliation(s)
- David Gems
- Institute of Healthy Ageing, and Research Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK.
| |
Collapse
|
12
|
Allele-specific mitochondrial stress induced by Multiple Mitochondrial Dysfunctions Syndrome 1 pathogenic mutations modeled in Caenorhabditis elegans. PLoS Genet 2021; 17:e1009771. [PMID: 34449775 PMCID: PMC8428684 DOI: 10.1371/journal.pgen.1009771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 09/09/2021] [Accepted: 08/10/2021] [Indexed: 01/18/2023] Open
Abstract
Multiple Mitochondrial Dysfunctions Syndrome 1 (MMDS1) is a rare, autosomal recessive disorder caused by mutations in the NFU1 gene. NFU1 is responsible for delivery of iron-sulfur clusters (ISCs) to recipient proteins which require these metallic cofactors for their function. Pathogenic variants of NFU1 lead to dysfunction of its target proteins within mitochondria. To date, 20 NFU1 variants have been reported and the unique contributions of each variant to MMDS1 pathogenesis is unknown. Given that over half of MMDS1 individuals are compound heterozygous for different NFU1 variants, it is valuable to investigate individual variants in an isogenic background. In order to understand the shared and unique phenotypes of NFU1 variants, we used CRISPR/Cas9 gene editing to recreate exact patient variants of NFU1 in the orthologous gene, nfu-1 (formerly lpd-8), in C. elegans. Five mutant C. elegans alleles focused on the presumptive iron-sulfur cluster interaction domain were generated and analyzed for mitochondrial phenotypes including respiratory dysfunction and oxidative stress. Phenotypes were variable between the mutant nfu-1 alleles and generally presented as an allelic series indicating that not all variants have lost complete function. Furthermore, reactive iron within mitochondria was evident in some, but not all, nfu-1 mutants indicating that iron dyshomeostasis may contribute to disease pathogenesis in some MMDS1 individuals. Functional mitochondria are essential to life in eukaryotes, but they can be perterbured by inherent dysfunction of important proteins or stressors. Mitochondrial dysfunction is the root cause of dozens of diseases many of which involve complex phenotypes. One such disease is Multiple Mitochondrial Dysfunctions Syndrome 1, a pediatric-fatal disease that is poorly understood in part due to the lack of clarity about how mutations in the causative gene, NFU1, affect protein function and phenotype development and severity. Here we employ the power of CRISPR/Cas9 gene editing in the small nematode Caenorhabditis elegans to recreate five patient-specific mutations known to cause Multiple Mitochondrial Dysfunctions Syndrome 1. We are able to analyze each of these mutations individually, evaluate how mitochondrial dysfunction differs between them, and whether or not the phenotypes can be improved. We find that there are meaningful differences between each mutation which not only effects the types of stress that develop, but also the ability to rescue deleterious phenotypes. This work thus provides insight into disease pathogenesis and establishes a foundation for potential future therapeutic intervention.
Collapse
|
13
|
Dhakal R, Yosofvand M, Yavari M, Abdulrahman R, Schurr R, Moustaid-Moussa N, Moussa H. Review of Biological Effects of Acute and Chronic Radiation Exposure on Caenorhabditis elegans. Cells 2021; 10:cells10081966. [PMID: 34440735 PMCID: PMC8392105 DOI: 10.3390/cells10081966] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 12/31/2022] Open
Abstract
Knowledge regarding complex radiation responses in biological systems can be enhanced using genetically amenable model organisms. In this manuscript, we reviewed the use of the nematode, Caenorhabditis elegans (C. elegans), as a model organism to investigate radiation’s biological effects. Diverse types of experiments were conducted on C. elegans, using acute and chronic exposure to different ionizing radiation types, and to assess various biological responses. These responses differed based on the type and dose of radiation and the chemical substances in which the worms were grown or maintained. A few studies compared responses to various radiation types and doses as well as other environmental exposures. Therefore, this paper focused on the effect of irradiation on C. elegans, based on the intensity of the radiation dose and the length of exposure and ways to decrease the effects of ionizing radiation. Moreover, we discussed several studies showing that dietary components such as vitamin A, polyunsaturated fatty acids, and polyphenol-rich food source may promote the resistance of C. elegans to ionizing radiation and increase their life span after irradiation.
Collapse
Affiliation(s)
- Rabin Dhakal
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79401, USA; (R.D.); (M.Y.)
| | - Mohammad Yosofvand
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79401, USA; (R.D.); (M.Y.)
| | - Mahsa Yavari
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA; (M.Y.); (N.M.-M.)
- Obesity Research Institute, Texas Tech University, Lubbock, TX 79409, USA
| | - Ramzi Abdulrahman
- Medical Center, Department of Radiation Oncology, Texas Tech University, Lubbock, TX 79430, USA;
| | - Ryan Schurr
- Cancer Center, UMC Health System, Lubbock, TX 79430, USA;
| | - Naima Moustaid-Moussa
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA; (M.Y.); (N.M.-M.)
- Obesity Research Institute, Texas Tech University, Lubbock, TX 79409, USA
| | - Hanna Moussa
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79401, USA; (R.D.); (M.Y.)
- Obesity Research Institute, Texas Tech University, Lubbock, TX 79409, USA
- Correspondence: ; Tel.: +1-806-834-6271
| |
Collapse
|
14
|
Mendenhall AR, Lithgow GJ, Kim S, Friedman D, Newell-Stamper BL, Johnson TE. Career Retrospective: Tom Johnson-Genetics, Genomics, Stress, Stochastic Variation, and Aging. J Gerontol A Biol Sci Med Sci 2021; 76:e85-e91. [PMID: 33609361 DOI: 10.1093/gerona/glab050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Alexander R Mendenhall
- Department of Laboratory Medicine and Pathology, School of Medicine, University of Washington, Seattle, Washington, USA.,University of Washington Nathan Shock Center for Excellence in the Basic Biology of Aging, Department of Laboratory Medicine and Pathology, Seattle, Washington, USA
| | | | - Stuart Kim
- Department of Developmental Biology, Stanford University Medical Center, California, USA
| | - David Friedman
- Department of Chemistry, Middle Tennessee State University, Murfreesboro, USA
| | | | - Thomas E Johnson
- Department of Integrative Physiology, University of Colorado, Boulder, Colorado, USA.,University of Colorado, Institute for Behavioral Genetics, Boulder, Colorado, USA
| |
Collapse
|
15
|
Rasulova M, Zečić A, Monje Moreno JM, Vandemeulebroucke L, Dhondt I, Braeckman BP. Elevated Trehalose Levels in C. elegans daf-2 Mutants Increase Stress Resistance, Not Lifespan. Metabolites 2021; 11:metabo11020105. [PMID: 33673074 PMCID: PMC7917784 DOI: 10.3390/metabo11020105] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/04/2021] [Accepted: 02/10/2021] [Indexed: 12/20/2022] Open
Abstract
The C. elegans insulin/IGF-1 (insulin-like growth factor 1) signaling mutant daf-2 recapitulates the dauer metabolic signature—a shift towards lipid and carbohydrate accumulation—which may be linked to its longevity and stress resistance phenotypes. Trehalose, a disaccharide of glucose, is highly upregulated in daf‑2 mutants and it has been linked to proteome stabilization and protection against heat, cold, desiccation, and hypoxia. Earlier studies suggested that elevated trehalose levels can explain up to 43% of the lifespan extension observed in daf-2 mutants. Here we demonstrate that trehalose accumulation is responsible for increased osmotolerance, and to some degree thermotolerance, rather than longevity in daf-2 mutants. This indicates that particular stress resistance phenotypes can be uncoupled from longevity.
Collapse
|
16
|
Henry SA, Crivello S, Nguyen TM, Cybulska M, Hoang NS, Nguyen M, Badial T, Emami N, Awada N, Woodward JF, So CH. G protein-coupled receptor kinase 2 modifies the ability of Caenorhabditis elegans to survive oxidative stress. Cell Stress Chaperones 2021; 26:187-197. [PMID: 33064264 PMCID: PMC7736396 DOI: 10.1007/s12192-020-01168-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/19/2020] [Accepted: 09/22/2020] [Indexed: 01/25/2023] Open
Abstract
Survival and adaptation to oxidative stress is important for many organisms, and these occur through the activation of many different signaling pathways. In this report, we showed that Caenorhabditis (C.) elegans G protein-coupled receptor kinases modified the ability of the organism to resist oxidative stress. In acute oxidative stress studies using juglone, loss-of-function grk-2 mutants were more resistant to oxidative stress compared with loss-of-function grk-1 mutants and the wild-type N2 animals. This effect was Ce-AKT-1 dependent, suggesting that Ce-GRK2 adjusted C. elegans oxidative stress resistance through the IGF/insulin-like signaling (IIS) pathway. Treating C. elegans with a GRK2 inhibitor, the selective serotonin reuptake inhibitor paroxetine, resulted in increased acute oxidative stress resistance compared with another selective serotonin reuptake inhibitor, fluoxetine. In chronic oxidative stress studies with paraquat, both grk-1 and grk-2 mutants had longer lifespan compared with the wild-type N2 animals in stress. In summary, this research showed the importance of both GRKs, especially GRK2, in modifying oxidative stress resistance.
Collapse
Affiliation(s)
- Stacy A Henry
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA
| | - Selina Crivello
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA
| | - Tina M Nguyen
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA
| | - Magdalena Cybulska
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA
| | - Ngoc S Hoang
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA
| | - Mary Nguyen
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA
| | | | - Nazgol Emami
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA
| | - Nasma Awada
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA
| | - Johnathen F Woodward
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA
| | - Christopher H So
- Roseman University of Health Sciences School of Pharmacy, 11 Sunset Way, Henderson, NV, 89014, USA.
| |
Collapse
|
17
|
Gu J, Li Q, Liu J, Ye Z, Feng T, Wang G, Wang W, Zhang Y. Ultrasonic-assisted extraction of polysaccharides from Auricularia auricula and effects of its acid hydrolysate on the biological function of Caenorhabditis elegans. Int J Biol Macromol 2020; 167:423-433. [PMID: 33249158 DOI: 10.1016/j.ijbiomac.2020.11.160] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/16/2020] [Accepted: 11/23/2020] [Indexed: 12/26/2022]
Abstract
The present study was designed to explore the in vivo-antioxidant capacity and the probable mechanism of AAPs-H, prepared from Auricularia auricula polysaccharides with the optimal extraction conditions by Box-Behnken design and acid hydrolysis, using Caenorhabditis elegans as a model organism. The effects of AAPs-H on the locomotion behavior, life span, antioxidant-related enzymes activities, and antioxidants levels in C. elegans were studied. Furthermore, the potentials of AAPs-H in up-regulating the expression of antioxidant-related genes in C. elegans, such as skn-1, sod-3 and sir-2.1, were also discussed. AAPs-H demonstrated a highly significant protective effect against the damage caused by paraquat, could significantly increase U-Turn frequency of worms (p < 0.01), extend their lifespan, enhance antioxidant systems including GR by 63.96% (p < 0.05), GSH-Px by 71.16% (p < 0.01), SOD by 78.65% (p < 0.01) and CAT by 98.52% (p < 0.01), increase the level of GSH by 28.12% (p < 0.05), and decrease the level of MDA by 39.29% (p < 0.01). The qRT-PCR results showed that AAPs-H could up regulate mRNA expression levels of skn-1, sod-1, sod-2, sod-3 and sir-2.1 in wild-type C. elegans (>1.6 fold) when treated with the concentration of 0.4 mg/mL (p < 0.05 or p < 0.01). Our studies provide evidence that AAPs-H improves antioxidant defense system, and up-regulation of oxidative stress related genes for prevention of stress damage in C. elegans.
Collapse
Affiliation(s)
- Jingyi Gu
- College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Qiaowei Li
- College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Jing Liu
- College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Zhongdu Ye
- College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Tao Feng
- College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Ge Wang
- College of Modern Science and Technology, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Weimin Wang
- College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Yongjun Zhang
- College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, China.
| |
Collapse
|
18
|
Yabuta Y, Nagata R, Aoki Y, Kariya A, Wada K, Yanagimoto A, Hara H, Bito T, Okamoto N, Yoshida S, Ishihara A, Watanabe F. L-Ascorbate Biosynthesis Involves Carbon Skeleton Rearrangement in the Nematode Caenorhabditis elegans. Metabolites 2020; 10:metabo10080334. [PMID: 32824560 PMCID: PMC7463950 DOI: 10.3390/metabo10080334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/11/2020] [Accepted: 08/15/2020] [Indexed: 11/16/2022] Open
Abstract
Ascorbate (AsA) is required as a cofactor and is widely distributed in plants and animals. Recently, it has been suggested that the nematode Caenorhabditis elegans also synthesizes AsA. However, its biosynthetic pathway is still unknown. To further understand AsA biosynthesis in C. elegans, we analyzed the incorporation of the 13C atom into AsA using gas chromatography-mass spectrometry (GC-MS) in worms fed with D-Glc (1-13C)-labeled Escherichia coli. GC-MS analysis revealed that AsA biosynthesis in C. elegans, similarly to that in mammalian systems, involves carbon skeleton rearrangement. The addition of L-gulono-1,4-lactone, an AsA precursor in the mammalian pathway, significantly increased AsA level in C. elegans, whereas the addition of L-galactono-1,4-lactone, an AsA precursor in the plant and Euglena pathway, did not affect AsA level. The suppression of E03H4.3 (an ortholog of gluconolactonase) or the deficiency of F54D5.12 (an ortholog of L-gulono-1,4-lactone oxidase) significantly decreased AsA level in C. elegans. Although N2- and AsA-deficient F54D5.12 knockout mutant worm (tm6671) morphologies and the ratio of collagen to non-collagen protein did not show any significant differences, the mutant worms exhibited increased malondialdehyde levels and reduced lifespan compared with the N2 worms. In conclusion, our findings indicate that the AsA biosynthetic pathway is similar in C. elegans and mammals.
Collapse
Affiliation(s)
- Yukinori Yabuta
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
- Correspondence: ; Tel.: +81-857-31-5382
| | - Ryuta Nagata
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
| | - Yuka Aoki
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
| | - Ayumi Kariya
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
| | - Kousuke Wada
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
| | - Ayako Yanagimoto
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
| | - Hiroka Hara
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
| | - Tomohiro Bito
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
| | - Naho Okamoto
- The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan;
| | - Shinichi Yoshida
- Electronic and Organic Material Laboratory, Tottori Institute of Industrial Technology, 7-1-1 Wakabadai-minami, Tottori 689-1112, Japan;
| | - Atsushi Ishihara
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
| | - Fumio Watanabe
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan; (R.N.); (Y.A.); (A.K.); (K.W.); (A.Y.); (H.H.); (T.B.); (A.I.); (F.W.)
| |
Collapse
|
19
|
Bulterijs S, Braeckman BP. Phenotypic Screening in C. elegans as a Tool for the Discovery of New Geroprotective Drugs. Pharmaceuticals (Basel) 2020; 13:E164. [PMID: 32722365 PMCID: PMC7463874 DOI: 10.3390/ph13080164] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/22/2020] [Accepted: 07/22/2020] [Indexed: 01/10/2023] Open
Abstract
Population aging is one of the largest challenges of the 21st century. As more people live to advanced ages, the prevalence of age-related diseases and disabilities will increase placing an ever larger burden on our healthcare system. A potential solution to this conundrum is to develop treatments that prevent, delay or reduce the severity of age-related diseases by decreasing the rate of the aging process. This ambition has been accomplished in model organisms through dietary, genetic and pharmacological interventions. The pharmacological approaches hold the greatest opportunity for successful translation to the clinic. The discovery of such pharmacological interventions in aging requires high-throughput screening strategies. However, the majority of screens performed for geroprotective drugs in C. elegans so far are rather low throughput. Therefore, the development of high-throughput screening strategies is of utmost importance.
Collapse
Affiliation(s)
- Sven Bulterijs
- Laboratory of Aging Physiology and Molecular Evolution, Department of Biology, Ghent University, 9000 Ghent, Belgium
| | - Bart P. Braeckman
- Laboratory of Aging Physiology and Molecular Evolution, Department of Biology, Ghent University, 9000 Ghent, Belgium
| |
Collapse
|
20
|
Xie X, Shang L, Ye S, Chen C. The Protective Effect of Adenosine-Preconditioning on Paraquat-Induced Damage in Caenorhabditis elegans. Dose Response 2020; 18:1559325820935329. [PMID: 32636721 PMCID: PMC7323277 DOI: 10.1177/1559325820935329] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/11/2020] [Accepted: 05/25/2020] [Indexed: 12/26/2022] Open
Abstract
Adenosine plays an important role in the physiological and pathological conditions of the body by combining different types of adenosine receptors widely distributed in various tissues in the body. In present study, an acute model for paraquat-poisoning in Caenorhabditis elegans was established for quantitative assessment via a time-dose-mortality (TDM) modeling technique with various paraquat doses over 8 hours. Adenosine was first used to precondition at high, medium, and low concentrations and the survival rate of C. elegans was recorded to evaluate adenosine antistress protection against paraquat damage. The results revealed that the TDM model was good for the quantitative assessment of paraquat-poisoning on C. elegans based on the Hosmer-Lemeshow test for homogeneity of modeling (P = .38). The survival rates of adenosine-preconditioned C. elegans have a dose-dependent association with adenosine concentration. At 3000 μM (high concentration) and 300 μM (medium concentration), adenosine-preconditioned C. elegans still had survival rates of 5.38% ± 1.68% and 5.0% ± 1.19% in the subsequent 8 hours observation period. On the contrary, the survival rates of those receiving 30 μM (low concentration) and the 0 μM (unpreconditioned treatment) were zero. To conclude, adenosine preconditioning had protective effects on C. elegans intoxicated with paraquat by decreasing its mortality rate.
Collapse
Affiliation(s)
- Xin Xie
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou, China
| | - Liangcheng Shang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou, China
| | - Sudan Ye
- Zhejiang Economic & Trade Polytechnic, Hangzhou, China
| | - Chun Chen
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou, China
| |
Collapse
|
21
|
Mueller MT, Fueser H, Trac LN, Mayer P, Traunspurger W, Höss S. Surface-Related Toxicity of Polystyrene Beads to Nematodes and the Role of Food Availability. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:1790-1798. [PMID: 31934751 DOI: 10.1021/acs.est.9b06583] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Microplastics released into freshwaters from anthropogenic sources settle in the sediments, where they may pose an environmental threat to benthic organisms. However, few studies have considered the ecotoxicological hazard of microplastic particles for nematodes, one of the most abundant taxa of the benthic meiofauna. This study investigated the toxic effects of polystyrene (PS) beads (0.1-10.0 μm) and the underlying mechanisms thereof on the reproduction of the nematode Caenorhabditis elegans. The observed effect of the PS beads on the nematodes correlated well with the total surface area of the beads per volume, with a 50% inhibition of reproduction at 55.4 ± 12.9 cm2/mL, independent of the bead size. The adverse effects were not explained by styrene monomers leaching from the beads because chemical activities of styrene in PS suspensions were well below the toxic levels. However, the observed effects could be related to the bead material because the same-sized silica (SiO2) beads had considerably less impact, probably due to their higher specific density. PS and SiO2 beads affected the food availability of C. elegans, with greater effects by the PS beads. Our results demonstrate the importance of including indirect food web effects in studies of the ecological risks posed by microplastics.
Collapse
Affiliation(s)
- Marie-Theres Mueller
- Bielefeld University , Animal Ecology, Konsequenz 45 , 33615 Bielefeld , Germany
| | - Hendrik Fueser
- Bielefeld University , Animal Ecology, Konsequenz 45 , 33615 Bielefeld , Germany
| | - Lam Ngoc Trac
- Department of Environmental Engineering , Technical University of Denmark , DK-2800 Kgs. Lyngby , Denmark
| | - Philipp Mayer
- Department of Environmental Engineering , Technical University of Denmark , DK-2800 Kgs. Lyngby , Denmark
| | - Walter Traunspurger
- Bielefeld University , Animal Ecology, Konsequenz 45 , 33615 Bielefeld , Germany
| | - Sebastian Höss
- Bielefeld University , Animal Ecology, Konsequenz 45 , 33615 Bielefeld , Germany
- Ecossa , Giselastr. 6 , 82319 Starnberg , Germany
| |
Collapse
|
22
|
López-García G, Cilla A, Barberá R, Genovés S, Martorell P, Alegría A. Effect of plant sterol and galactooligosaccharides enriched beverages on oxidative stress and longevity in Caenorhabditis elegans. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103747] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
|
23
|
DAF-16/FoxO in Caenorhabditis elegans and Its Role in Metabolic Remodeling. Cells 2020; 9:cells9010109. [PMID: 31906434 PMCID: PMC7017163 DOI: 10.3390/cells9010109] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/30/2019] [Accepted: 12/31/2019] [Indexed: 12/31/2022] Open
Abstract
DAF-16, the only forkhead box transcription factors class O (FoxO) homolog in Caenorhabditis elegans, integrates signals from upstream pathways to elicit transcriptional changes in many genes involved in aging, development, stress, metabolism, and immunity. The major regulator of DAF-16 activity is the insulin/insulin-like growth factor 1 (IGF-1) signaling (IIS) pathway, reduction of which leads to lifespan extension in worms, flies, mice, and humans. In C. elegans daf-2 mutants, reduced IIS leads to a heterochronic activation of a dauer survival program during adulthood. This program includes elevated antioxidant defense and a metabolic shift toward accumulation of carbohydrates (i.e., trehalose and glycogen) and triglycerides, and activation of the glyoxylate shunt, which could allow fat-to-carbohydrate conversion. The longevity of daf-2 mutants seems to be partially supported by endogenous trehalose, a nonreducing disaccharide that mammals cannot synthesize, which points toward considerable differences in downstream mechanisms by which IIS regulates aging in distinct groups.
Collapse
|
24
|
Guo K, Su L, Wang Y, Liu H, Lin J, Cheng P, Yin X, Liang M, Wang Q, Huang Z. Antioxidant and anti-aging effects of a sea cucumber protein hydrolyzate and bioinformatic characterization of its composing peptides. Food Funct 2020; 11:5004-5016. [DOI: 10.1039/d0fo00560f] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
C. elegans-based activity guided and size-based isolation of antioxidant peptide fractions from a sea cucumber protein hydrolyzate and their bioinformatic characterization.
Collapse
|
25
|
Sammi SR, Foguth RM, Nieves CS, De Perre C, Wipf P, McMurray CT, Lee LS, Cannon JR. Perfluorooctane Sulfonate (PFOS) Produces Dopaminergic Neuropathology in Caenorhabditis elegans. Toxicol Sci 2019; 172:417-434. [PMID: 31428778 PMCID: PMC6876260 DOI: 10.1093/toxsci/kfz191] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Perfluorooctane sulfonate (PFOS) has been widely utilized in numerous industries. Due to long environmental and biological half-lives, PFOS is a major public health concern. Although the literature suggests that PFOS may induce neurotoxicity, neurotoxic mechanisms, and neuropathology are poorly understood. Thus, the primary goal of this study was to determine if PFOS is selectively neurotoxic and potentially relevant to specific neurological diseases. Nematodes (Caenorhabditis elegans) were exposed to PFOS or related per- and polyfluoroalkyl substances (PFAS) for 72 h and tested for evidence of neuropathology through examination of cholinergic, dopaminergic, gamma-amino butyric acid (GABA)ergic, and serotoninergic neuronal morphologies. Dopaminergic and cholinergic functional analyses were assessed through 1-nonanol and Aldicarb assay. Mechanistic studies assessed total reactive oxygen species, superoxide ions, and mitochondrial content. Finally, therapeutic approaches were utilized to further examine pathogenic mechanisms. Dopaminergic neuropathology occurred at lower exposure levels (25 ppm, approximately 50 µM) than required to produce neuropathology in GABAergic, serotonergic, and cholinergic neurons (100 ppm, approximately 200 µM). Further, PFOS exposure led to dopamine-dependent functional deficits, without altering acetylcholine-dependent paralysis. Mitochondrial content was affected by PFOS at far lower exposure level than required to induce pathology (≥1 ppm, approximately 2 µM). Perfluorooctane sulfonate exposure also enhanced oxidative stress. Further, mutation in mitochondrial superoxide dismutase rendered animals more vulnerable. Neuroprotective approaches such as antioxidants, PFAS-protein dissociation, and targeted (mitochondrial) radical and electron scavenging were neuroprotective, suggesting specific mechanisms of action. In general, other tested PFAS were less neurotoxic. The primary impact is to prompt research into potential adverse outcomes related to PFAS-induced dopaminergic neurotoxicity in humans.
Collapse
Affiliation(s)
- Shreesh Raj Sammi
- School of Health Sciences
- Purdue Institute for Integrative Neurosciences
| | - Rachel M Foguth
- School of Health Sciences
- Purdue Institute for Integrative Neurosciences
| | | | - Chloe De Perre
- Department of Agronomy, Purdue University, West Lafayette, Indiana 47907
| | - Peter Wipf
- Departments of Chemistry, Pharmaceutical Sciences, and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - Cynthia T McMurray
- Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Linda S Lee
- Department of Agronomy, Purdue University, West Lafayette, Indiana 47907
| | - Jason R Cannon
- School of Health Sciences
- Purdue Institute for Integrative Neurosciences
| |
Collapse
|
26
|
Benedetto A, Bambade T, Au C, Tullet JM, Monkhouse J, Dang H, Cetnar K, Chan B, Cabreiro F, Gems D. New label-free automated survival assays reveal unexpected stress resistance patterns during C. elegans aging. Aging Cell 2019; 18:e12998. [PMID: 31309734 PMCID: PMC6718543 DOI: 10.1111/acel.12998] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/15/2019] [Accepted: 05/22/2019] [Indexed: 12/19/2022] Open
Abstract
Caenorhabditis elegans is an excellent model for high‐throughput experimental approaches but lacks an automated means to pinpoint time of death during survival assays over a short time frame, that is, easy to implement, highly scalable, robust, and versatile. Here, we describe an automated, label‐free, high‐throughput method using death‐associated fluorescence to monitor nematode population survival (dubbed LFASS for label‐free automated survival scoring), which we apply to severe stress and infection resistance assays. We demonstrate its use to define correlations between age, longevity, and severe stress resistance, and its applicability to parasitic nematodes. The use of LFASS to assess the effects of aging on susceptibility to severe stress revealed an unexpected increase in stress resistance with advancing age, which was largely autophagy‐dependent. Correlation analysis further revealed that while severe thermal stress resistance positively correlates with lifespan, severe oxidative stress resistance does not. This supports the view that temperature‐sensitive protein‐handling processes more than redox homeostasis underpin aging in C. elegans. That the ages of peak resistance to infection, severe oxidative stress, heat shock, and milder stressors differ markedly suggests that stress resistance and health span do not show a simple correspondence in C. elegans.
Collapse
Affiliation(s)
- Alexandre Benedetto
- Department of Genetics, Evolution and Environment, Institute of Healthy Ageing University College London London UK
- Division of Biomedical and Life Sciences Lancaster University Lancaster UK
| | - Timothée Bambade
- Department of Genetics, Evolution and Environment, Institute of Healthy Ageing University College London London UK
| | - Catherine Au
- Department of Genetics, Evolution and Environment, Institute of Healthy Ageing University College London London UK
- Division of Biomedical and Life Sciences Lancaster University Lancaster UK
| | - Jennifer M.A. Tullet
- Department of Genetics, Evolution and Environment, Institute of Healthy Ageing University College London London UK
- School of Biosciences University of Kent Canterbury UK
| | - Jennifer Monkhouse
- Division of Biomedical and Life Sciences Lancaster University Lancaster UK
| | - Hairuo Dang
- Department of Genetics, Evolution and Environment, Institute of Healthy Ageing University College London London UK
| | - Kalina Cetnar
- Department of Genetics, Evolution and Environment, Institute of Healthy Ageing University College London London UK
| | - Brian Chan
- Division of Infection, Immunity & Respiratory Medicine University of Manchester Manchester UK
| | - Filipe Cabreiro
- Department of Genetics, Evolution and Environment, Institute of Healthy Ageing University College London London UK
- MRC London Institute of Medical Sciences, Imperial College London London UK
| | - David Gems
- Department of Genetics, Evolution and Environment, Institute of Healthy Ageing University College London London UK
| |
Collapse
|
27
|
Reigada I, Moliner C, Valero MS, Weinkove D, Langa E, Gómez Rincón C. Antioxidant and Antiaging Effects of Licorice on the Caenorhabditis elegans Model. J Med Food 2019; 23:72-78. [PMID: 31545123 DOI: 10.1089/jmf.2019.0081] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The causative relationship between oxidative stress and aging remains controversial, but it is a fact that many of the pathologies of age-related diseases are associated with oxidative stress. Phytochemicals may reduce damage from oxidative stress; the intake of these through diet could represent a strategy to lessen their pathological consequences. The popular and widely consumed licorice (Glycyrrhiza glabra) is a rich source of potential antioxidants. The aim of this study was to investigate whether licorice increases the oxidative stress resistance and lifespan of the animal model Caenorhabditis elegans. Licorice roots ethanolic extract showed in vitro antioxidant activity, with an IC50 of 51.17 μg/mL using 2,2-diphenyl-1-picrylhydrazyl (DPPH) as free radical. C. elegans pretreated with licorice showed an increase of survival rate when exposed to the oxidant juglone, being this increase up to ∼33.56%. This pretreated population also showed an increase in lifespan of 14.28% at a concentration of 250 μg/mL. In conclusion, we suggest that licorice has a high antioxidant capability both in vitro and in vivo and that this activity may explain the observed extension of lifespan.
Collapse
Affiliation(s)
- Inés Reigada
- Department of Pharmacy, Faculty of Health Science, San Jorge University, Zaragoza, Spain
| | - Cristina Moliner
- Department of Pharmacy, Faculty of Health Science, San Jorge University, Zaragoza, Spain
| | - Marta Sofía Valero
- Department of Pharmacology and Physiology, Faculty of Health and Sports Sciences. Zargoza University, Zaragoza, Spain
| | - David Weinkove
- School of Biological and Biomedical Sciences, Durham University, Durham, United Kingdom
| | - Elisa Langa
- Department of Pharmacy, Faculty of Health Science, San Jorge University, Zaragoza, Spain
| | - Carlota Gómez Rincón
- Department of Pharmacy, Faculty of Health Science, San Jorge University, Zaragoza, Spain
| |
Collapse
|
28
|
Metabolic Biomarkers in Aging and Anti-Aging Research. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1178:247-264. [PMID: 31493231 DOI: 10.1007/978-3-030-25650-0_13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Although human life expectancy has increased significantly over the last two centuries, this has not been paralleled by a similar rise in healthy life expectancy. Thus, an important goal of anti-aging research has been to reduce the impact of age-associated diseases as a way of extending the human healthspan. This review will explore some of the potential avenues which have emerged from this research as the most promising strategies and drug targets for therapeutic interventions to promote healthy aging.
Collapse
|
29
|
C-SH2 point mutation converts p85β regulatory subunit of phosphoinositide 3-kinase to an anti-aging gene. Sci Rep 2019; 9:12683. [PMID: 31481652 PMCID: PMC6722097 DOI: 10.1038/s41598-019-48157-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 07/25/2019] [Indexed: 11/12/2022] Open
Abstract
Insulin interacts with the insulin receptor, and the activated receptor promotes activity of the phosphoinositide-3 kinase (PI3K) enzyme. A decrease in insulin or insulin-like growth factor 1 (IGF-1) signaling increases the lifespan in mammalian species. We found that a point mutation in the C-SH2 domain of the p85β regulatory subunit of PI3K results in a prolonged lifespan. In p85β mutant cells, nerve growth factor (NGF) activates the longevity protein FOXO, and the mutant p85β gene produces strong resistance to oxidative stress, which contributes to aging. The p85β gene mutation causes increased serum insulin and low blood glucose in p85β mutant transgenic mice. Our results indicate that the p85β mutant allele alters the activity of downstream targets of PI3K by NGF and platelet-derived growth factor (PDGF) but not by insulin. We report that a point mutation in the C-SH2 domain of p85β transforms p85β into a novel anti-aging gene by abnormally regulating PI3K.
Collapse
|
30
|
Wu Z, Tan B, Liu Y, Dunn J, Martorell Guerola P, Tortajada M, Cao Z, Ji P. Chemical Composition and Antioxidant Properties of Essential Oils from Peppermint, Native Spearmint and Scotch Spearmint. Molecules 2019; 24:molecules24152825. [PMID: 31382468 PMCID: PMC6696458 DOI: 10.3390/molecules24152825] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 02/05/2023] Open
Abstract
Natural antioxidants have drawn growing interest for use in animal feed and the food industry. In the current study, essential oils (EOs) obtained from hydrodistillation of three mentha species, including Mentha piperita (peppermint), Mentha spicata (native spearmint) and Mentha gracilis (Scotch spearmint), harvested in the Midwest region in the United States, were analyzed for their chemical composition using gas chromatography-mass spectrometry, and their antioxidant properties were assessed through chemical assays, in vitro cell culture modeling and in Caenorhabditis elegans (C. elegans). The activity of ferric iron reduction and free-radical scavenging capacity were assessed through chemical-based assays, including the reducing power assay, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay, and Trolox equivalent antioxidant capacity assay (TEAC). Subsequently, the capacity of EOs to mitigate lipid peroxidation was analyzed at various doses using fresh liver homogenates from pigs. A porcine jejunum epithelial cell line (IPEC-J2) was employed as in vitro model to study the cellular antioxidant activity of the mint EOs. Finally, the effectiveness of mint EOs to alleviate acute systemic oxidative damage were evaluated in vivo using C. elegans. Data were analyzed by the MIXED procedure of SAS. Contrast statement was performed to assess linear or quadratic effects of mint EOs given at various doses. All three EOs are mostly composed of monoterpenes and their derivatives (76-90%), but differed in the major compounds, which are menthol and menthone (50%) in peppermint EO and carvone (70%) in spearmint EOs. Three mint EOs demonstrated prominent radical scavenging and Fe3+ reducing activity in chemical-based assays. In comparison with native and Scotch spearmint EOs, peppermint EO had the lowest (p < 0.05) half maximal effective concentration (EC50) in DPPH and TEAC assays and higher efficacy in the reducing power assay. All three EOs exhibited equivalent activity in mitigation of chemical-induced lipid peroxidation in liver tissues in a dose-dependent manner (linear, p < 0.001). The maximal cellular antioxidant activity (CAA) was observed at 5 µg/mL for peppermint, and 100 µg/mL for native and Scotch spearmint EOs. The addition of 25 µg/mL of both spearmint EOs increased (p < 0.05) cellular concentrations of glutathione in H2O2-treated IPEC-J2 cells, suggesting enhanced endogenous antioxidant defense. Supplementation of 100 µg/mL of peppermint or Scotch spearmint EO significantly increased (p < 0.05) the survival rate of C. elegans in response to H2O2-induced oxidative stress. The protective effect is comparable to that of supplementation of 10 µg/mL of ascorbic acid. However native spearmint EO failed to reduce the death rate within the same supplementation dose (10-200 μg/mL).
Collapse
Affiliation(s)
- Zhaohai Wu
- Department of Animal Science, University of California, Davis, CA 95616, USA
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Bie Tan
- Department of Animal Science, University of California, Davis, CA 95616, USA
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Yanhong Liu
- Department of Animal Science, University of California, Davis, CA 95616, USA
| | - James Dunn
- Applied Nutrition, ADM Animal Nutrition, Quincy, IL 62305, USA
| | | | - Marta Tortajada
- Cell Biology Laboratory, ADM Biopolis, 46980 Valencia, Spain
| | - Zhijun Cao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Peng Ji
- Department of Nutrition, University of California, Davis, CA 95616, USA.
| |
Collapse
|
31
|
Tang Y, Liu J, Wang H, Li Y, Liu Z, Chen H. 1,3,5,8-Tetrahydroxy-9H-xanthen-9-one exerts its antiageing effect through the regulation of stress-response genes and the MAPK signaling pathway. Arch Pharm (Weinheim) 2019; 352:e1900100. [PMID: 31313862 DOI: 10.1002/ardp.201900100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/18/2019] [Accepted: 05/22/2019] [Indexed: 11/08/2022]
Abstract
The antioxidative effects of 30 xanthone derivatives (XDs) (XD-n, n = 1-30) in HepG2 cells were evaluated by the cellular antioxidant activity assay. Results showed that all XDs were antioxidants and 1,3,5,8-tetrahydroxy-9H-xanthen-9-one (XD-2) was the most active antioxidant. The all-oxygenated substituted xanthones extended the lifespan of wild-type N2 nematodes under normal culture conditions and XD-2 was the best one. XD-2 eliminated excessive intracellular reactive oxygen species and enhanced the expression levels and activities of the antioxidant enzymes superoxide dismutase, catalase, and glutathione peroxidase. XD-2 inhibited the H2 O2 -increased phosphorylation levels of c-JUN N-terminal kinase, extracellular signal-regulated kinase, and p38 in HepG2 cells. In vivo, XD-2 also extended the lifespan of wild-type N2 nematodes under oxidative stress induced by paraquat, but failed in extending the lifespan of CF1038 (daf-16 deletion) and AY102 (pmk-1 deletion) mutant nematodes. It was revealed by real-time polymerase chain reaction that the genes daf-16, sir-2.1, akt-1, and age-1 were all inhibited by paraquat stimuli, while XD-2 reversed these inhibitions; in contrast, paraquat stimuli upregulated both the skn-1 and pmk-1 genes. However, treatment by XD-2 further increased the levels of both genes. These pieces of evidence implied that XD-2 promotes longevity through endogenous signaling pathways rather than through the antioxidative activity alone. Taken all together, it may be concluded that XD-2 is a promising antiageing agent.
Collapse
Affiliation(s)
- Yinying Tang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
| | - Jie Liu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China.,The Research Center of Allergy and Immunology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Huailing Wang
- The Research Center of Allergy and Immunology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Yanbing Li
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China
| | - Zhijun Liu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China
| | - Heru Chen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education, School of Pharmacy, Jinan University, Guangzhou, China
| |
Collapse
|
32
|
Su L, Li H, Huang C, Zhao T, Zhang Y, Ba X, Li Z, Zhang Y, Huang B, Lu J, Zhao Y, Li X. Muscle-Specific Histone H3K36 Dimethyltransferase SET-18 Shortens Lifespan of Caenorhabditis elegans by Repressing daf-16a Expression. Cell Rep 2019. [PMID: 29514099 DOI: 10.1016/j.celrep.2018.02.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Mounting evidence shows that histone methylation, a typical epigenetic mark, is crucial for gene expression regulation during aging. Decreased trimethylation of Lys 36 on histone H3 (H3K36me3) in worms and yeast is reported to shorten lifespan. The function of H3K36me2 in aging remains unclear. In this study, we identified Caenorhabditis elegans SET-18 as a histone H3K36 dimethyltransferase. SET-18 deletion extended lifespan and increased oxidative stress resistance, dependent on daf-16 activity in the insulin/IGF pathway. In set-18 mutants, transcription of daf-16 isoform a (daf-16a) was specifically upregulated. Accordingly, a decrease in H3K36me2 on daf-16a promoter was observed. Muscle-specific expression of SET-18 increased in aged worms (day 7 and day 11), attributable to elevation of global H3K36me2 and inhibition of daf-16a expression. Consequently, longevity was shortened. These findings suggested that chromatic repression mediated by tissue-specific H3K36 dimethyltransferase might be detrimental to lifespan and may have implications in human age-related diseases.
Collapse
Affiliation(s)
- Liangping Su
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Hongyuan Li
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Cheng Huang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Tingting Zhao
- Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Yongjun Zhang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Xueqing Ba
- Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Zhongwei Li
- Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Yu Zhang
- Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Baiqu Huang
- Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Jun Lu
- Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China.
| | - Yanmei Zhao
- Key Laboratory of RNA Biology, Beijing Key Laboratory of Noncoding RNA, Institute of Biophysics, CAS Center for Excellence in Biomacromolecules, Chinese Academy of Sciences, Beijing 100101, China.
| | - Xiaoxue Li
- Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China.
| |
Collapse
|
33
|
Liu Z, Solesio ME, Schaffler MB, Frikha-Benayed D, Rosen CJ, Werner H, Kopchick JJ, Pavlov EV, Abramov AY, Yakar S. Mitochondrial Function Is Compromised in Cortical Bone Osteocytes of Long-Lived Growth Hormone Receptor Null Mice. J Bone Miner Res 2019; 34:106-122. [PMID: 30216544 PMCID: PMC7080402 DOI: 10.1002/jbmr.3573] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 08/03/2018] [Accepted: 08/08/2018] [Indexed: 12/12/2022]
Abstract
Despite increased longevity and resistance to multiple stressors, growth hormone receptor null (GHRKO) mice exhibit severe skeletal impairment. The role of GHR in maintaining osteocyte mitochondrial function is unknown. We found that GHR ablation was detrimental to osteocyte mitochondrial function. In vivo multiphoton microscopy revealed significant reductions of >10% in mitochondrial membrane potential (MMP) in GHRKO osteocytes and reduced mitochondrial volumetric density. Reductions in MMP were accompanied by reductions in glucose transporter-1 levels, steady state ATP, NADH redox index, oxygen consumption rate, and mitochondrial reserve capacity in GHRKO osteocytes. Glycolytic capacity did not differ between control and GHRKO males' osteocytes. However, osteocytes from aged female GHRKO mice exhibited reductions in glycolytic parameters, indicating impairments in glucose metabolism, which may be sex dependent. GHRKO osteocytes exhibited increased levels of cytoplasmic reactive oxygen species (ROS) (both basal and in response to high glucose), insulin-like growth factor-1 (IGF-1), and insulin. Mitochondrial ROS levels were increased and correlated with reduced glutathione in GHRKO osteocytes. Overall, the compromised osteocyte mitochondrial function and responses to metabolic insults strongly correlated with skeletal impairments, suggesting that despite increased life span of the GHRKO mice, skeletal health span is decreased. © 2018 American Society for Bone and Mineral Research.
Collapse
Affiliation(s)
- Zhongbo Liu
- David B. Kriser Dental Center, Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, USA
| | - Maria E Solesio
- David B. Kriser Dental Center, Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, USA
| | - Mitchell B Schaffler
- Department of Biomedical Engineering, City College of New York, New York, NY, USA
| | - Dorra Frikha-Benayed
- Department of Biomedical Engineering, City College of New York, New York, NY, USA
| | | | - Haim Werner
- Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - John J Kopchick
- Edison Biotechnology Institute and Department of Biomedical Sciences, Ohio University, Athens, OH, USA
| | - Evgeny V Pavlov
- David B. Kriser Dental Center, Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, USA
| | - Andrey Y Abramov
- Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, UK
| | - Shoshana Yakar
- David B. Kriser Dental Center, Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, USA
| |
Collapse
|
34
|
Yanase S, Ishii T, Yasuda K, Ishii N. Metabolic Biomarkers in Nematode C. elegans During Aging. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1134:163-175. [PMID: 30919337 DOI: 10.1007/978-3-030-12668-1_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Changes in energy metabolism occur not only in diseases such as cancer but also in the normal development and aging processes of various organisms. These metabolic changes result to lead to imbalances in energy metabolism related to cellular and tissue homeostasis. In the model organism C. elegans, which is used to study aging, an imbalance in age-related energy metabolism exists between mitochondrial oxidative phosphorylation and aerobic glycolysis. Cellular lactate and pyruvate are key intermediates in intracellular energy metabolic pathways and can indicate age-related imbalances in energy metabolism. Thus, the cellular lactate/pyruvate ratio can be monitored as a biomarker during aging. Moreover, recent studies have proposed a candidate novel biomarker for aging and age-related declines in the nematode C. elegans.
Collapse
Affiliation(s)
- Sumino Yanase
- Department of Health Science, Daito Bunka University School of Sports & Health Science, Higashi-matsuyama, Saitama, Japan. .,Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan.
| | - Takamasa Ishii
- Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Kayo Yasuda
- Department of Health Management, Undergraduate School of Health Studies, Tokai University, Hiratsuka, Kanagawa, Japan
| | - Naoaki Ishii
- Department of Health Management, Undergraduate School of Health Studies, Tokai University, Hiratsuka, Kanagawa, Japan
| |
Collapse
|
35
|
Gusarov I, Nudler E. Glycogen at the Crossroad of Stress Resistance, Energy Maintenance, and Pathophysiology of Aging. Bioessays 2018; 40:e1800033. [DOI: 10.1002/bies.201800033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 05/31/2018] [Indexed: 01/06/2023]
Affiliation(s)
- Ivan Gusarov
- Department of Biochemistry and Molecular Pharmacology; New York University School of Medicine; New York NY 10016 USA
| | - Evgeny Nudler
- Department of Biochemistry and Molecular Pharmacology; New York University School of Medicine; New York NY 10016 USA
- Howard Hughes Medical Institute; New York University School of Medicine; New York NY 10016 USA
| |
Collapse
|
36
|
Jattujan P, Chalorak P, Siangcham T, Sangpairoj K, Nobsathian S, Poomtong T, Sobhon P, Meemon K. Holothuria scabra extracts possess anti-oxidant activity and promote stress resistance and lifespan extension in Caenorhabditis elegans. Exp Gerontol 2018; 110:158-171. [PMID: 29902502 DOI: 10.1016/j.exger.2018.06.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 06/02/2018] [Accepted: 06/07/2018] [Indexed: 01/15/2023]
Abstract
Holothuria scabra is a sea cucumber that is mostly found in the Indo-Pacific region including Thailand. Extracts from many sea cucumbers possess pharmacological activities proposed to benefit human health. In this study, we investigated the anti-oxidant and anti-ageing activities of extracts from H. scabra by using Caenorhabditis elegans as a model organism. Parts of H. scabra were solvent-extracted and divided into nine fractions including whole body-hexane (WBHE), whole body-ethyl acetate (WBEA), whole body-butanol (WBBU), body wall-hexane (BWHE), body wall-ethyl acetate (BWEA), body wall-butanol (BWBU), viscera-hexane (VIHE), viscera-ethyl acetate (VIEA), and viscera-butanol (VIBU). All fractions of the extracts were tested for anti-oxidant activities by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assays and for anti-ageing effects by lifespan assays using C. elegans as a model. The results showed anti-oxidant properties in all fractions with the highest activity shown by the DPPH assay in WBBU (EC50 = 3.12 ± 0.09 mg/ml), and by the ABTS assay in WBHE (EC50 = 0.31 ± 0.10 mg/ml). In lifespan assays the highest anti-ageing effect was detected in WBBU- and BWEA-treated C. elegans with increased mean lifespans of 8.12% and 4.77%, respectively. Furthermore, WBBU and BWEA-treated C. elegans exhibited significantly higher resistance against heat shock and paraquat-induced oxidative stresses than controls. By using LC-MS/MS, both extracts were characterized to contain triterpene glycosides as the main bioactive components. To explore mechanisms of H. scabra extracts on longevity and stress resistance, worms with genetic mutations in anti-ageing pathways were analyzed and showed that WBBU and BWEA did not prolong the lifespan of daf-16, age-1, sir-2.1, jnk-1, sek-1, and osr-1 mutants, suggesting that these genetic pathways are involved in mediating the anti-ageing effects of the H. scabra extracts. Moreover, WBBU and BWEA enhanced the nuclear translocation of the FoxO/DAF-16 transcription factor, and increased mRNA expression of this gene and its downstream targets sod-3, hsp12.3, and hsp16.2. In conclusion, this study strongly demonstrates anti-oxidant and anti-ageing properties of H. scabra extracts containing triterpene glycosides, which, in the C. elegans model, may be mediated via the insulin/IGF-1 signaling (IIS)-DAF-16 pathway.
Collapse
Affiliation(s)
- Prapaporn Jattujan
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Pawanrat Chalorak
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Tanapan Siangcham
- Faculty of Allied Health Sciences, Burapha University, Chonburi 20131, Thailand
| | - Kant Sangpairoj
- Division of Anatomy, Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | | | - Tanate Poomtong
- The Coastal Fisheries Research and Development Center, Prachuapkhirikhun 77000, Thailand
| | - Prasert Sobhon
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Faculty of Allied Health Sciences, Burapha University, Chonburi 20131, Thailand
| | - Krai Meemon
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
| |
Collapse
|
37
|
Abstract
Low molecular weight protein tyrosine phosphatase (LMW-PTP) is highly conserved across almost all living organisms and is involved in the modulation of a number of cellular proteins related to important signaling pathways. In this study, we isolated lmwptp (Y94H6A.7) of Caenorhabditis elegans, the homolog of human ACP1, and set up an effective feeding-based RNA interference (RNAi) knockdown against this gene. We found that knockdown of lmwptp decreased damage associated with heat shock, oxidative stress and UV irradiation in wild-type worms, however, its deficiency didn't further reduce the stress resistance of daf-16 or hsf-1 mutants and didn't further increase the stress sensitivity associated with age-1, akt-1 or akt-2 mutants, but it enhanced the stress resistance of daf-2 mutants. Further studies demonstrated that this stress tolerance could be attributed to increased daf-16 nuclear accumulation and enhanced expression of both superoxide dismutase-3 protein (SOD-3) and heat shock protein-16.2 (HSP-16.2) in response to stress. Additionally, quantitative real-time PCR results showed that the expression of hsf-1 and its target genes were up-regulated in lmwptp-knockdown worms under stress conditions. Together these results indicated that lmwptp is related to stress resistance of worms, and it is likely associated with the insulin/IGF-1-like signaling (IIS) pathway.
Collapse
|
38
|
De Magalhaes Filho CD, Henriquez B, Seah NE, Evans RM, Lapierre LR, Dillin A. Visible light reduces C. elegans longevity. Nat Commun 2018; 9:927. [PMID: 29500338 PMCID: PMC5834526 DOI: 10.1038/s41467-018-02934-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 01/09/2018] [Indexed: 12/19/2022] Open
Abstract
The transparent nematode Caenorhabditis elegans can sense UV and blue-violet light to alter behavior. Because high-dose UV and blue-violet light are not a common feature outside of the laboratory setting, we asked what role, if any, could low-intensity visible light play in C. elegans physiology and longevity. Here, we show that C. elegans lifespan is inversely correlated to the time worms were exposed to visible light. While circadian control, lite-1 and tax-2 do not contribute to the lifespan reduction, we demonstrate that visible light creates photooxidative stress along with a general unfolded-protein response that decreases the lifespan. Finally, we find that long-lived mutants are more resistant to light stress, as well as wild-type worms supplemented pharmacologically with antioxidants. This study reveals that transparent nematodes are sensitive to visible light radiation and highlights the need to standardize methods for controlling the unrecognized biased effect of light during lifespan studies in laboratory conditions.
Collapse
Affiliation(s)
- C Daniel De Magalhaes Filho
- The Howard Hughes Medical Institute, Molecular and Cell Biology Department, Li Ka Shing Center, University of California Berkeley, Berkeley, CA, 94720, USA
- The Salk Institute for Biological Studies, Gene expression laboratory, The Howard Hughes Medical Institute, 10010 N.Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Brian Henriquez
- The Salk Institute for Biological Studies, Gene expression laboratory, The Howard Hughes Medical Institute, 10010 N.Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Nicole E Seah
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI, 02912, USA
| | - Ronald M Evans
- The Salk Institute for Biological Studies, Gene expression laboratory, The Howard Hughes Medical Institute, 10010 N.Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Louis R Lapierre
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI, 02912, USA
| | - Andrew Dillin
- The Howard Hughes Medical Institute, Molecular and Cell Biology Department, Li Ka Shing Center, University of California Berkeley, Berkeley, CA, 94720, USA.
| |
Collapse
|
39
|
Patrick A, Seluanov M, Hwang C, Tam J, Khan T, Morgenstern A, Wiener L, Vazquez JM, Zafar H, Wen R, Muratkalyeva M, Doerig K, Zagorulya M, Cole L, Catalano S, Lobo Ladd AA, Coppi AA, Coşkun Y, Tian X, Ablaeva J, Nevo E, Gladyshev VN, Zhang ZD, Vijg J, Seluanov A, Gorbunova V. Sensitivity of primary fibroblasts in culture to atmospheric oxygen does not correlate with species lifespan. Aging (Albany NY) 2017; 8:841-7. [PMID: 27163160 PMCID: PMC4931838 DOI: 10.18632/aging.100958] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 04/26/2016] [Indexed: 01/01/2023]
Abstract
Differences in the way human and mouse fibroblasts experience senescence in culture had long puzzled researchers. While senescence of human cells is mediated by telomere shortening, Parrinello et al. demonstrated that senescence of mouse cells is caused by extreme oxygen sensitivity. It was hypothesized that the striking difference in oxygen sensitivity between mouse and human cells explains their different rates of aging. To test if this hypothesis is broadly applicable, we cultured cells from 16 rodent species with diverse lifespans in 3% and 21% oxygen and compared their growth rates. Unexpectedly, fibroblasts derived from laboratory mouse strains were the only cells demonstrating extreme sensitivity to oxygen. Cells from hamster, muskrat, woodchuck, capybara, blind mole rat, paca, squirrel, beaver, naked mole rat and wild-caught mice were mildly sensitive to oxygen, while cells from rat, gerbil, deer mouse, chipmunk, guinea pig and chinchilla showed no difference in the growth rate between 3% and 21% oxygen. We conclude that, although the growth of primary fibroblasts is generally improved by maintaining cells in 3% oxygen, the extreme oxygen sensitivity is a peculiarity of laboratory mouse strains, possibly related to their very long telomeres, and fibroblast oxygen sensitivity does not directly correlate with species' lifespan.
Collapse
Affiliation(s)
- Alison Patrick
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Michael Seluanov
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Chaewon Hwang
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Jonathan Tam
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Tanya Khan
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Ari Morgenstern
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Lauren Wiener
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Juan M Vazquez
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Hiba Zafar
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Robert Wen
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | | | - Katherine Doerig
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Maria Zagorulya
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Lauren Cole
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Sophia Catalano
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Aliny Ab Lobo Ladd
- Laboratory of Stochastic Stereology and Chemical Anatomy (LSSCA), Department of Surgery, College of Veterinary Medicine and Animal Science, University of São Paulo (USP), São Paulo, Brazil
| | - A Augusto Coppi
- School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK
| | - Yüksel Coşkun
- Science Faculty, Biology Department, Dicle University, 21280 Diyarbakır, Turkey
| | - Xiao Tian
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Julia Ablaeva
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Eviatar Nevo
- Institute of Evolution, University of Haifa, Haifa 31905, Israel
| | - Vadim N Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Zhengdong D Zhang
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Jan Vijg
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Andrei Seluanov
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Vera Gorbunova
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| |
Collapse
|
40
|
Sebestyén F, Póliska S, Rácz R, Bereczki J, Lénárt K, Barta Z, Lendvai ÁZ, Tökölyi J. Insulin/IGF Signaling and Life History Traits in Response to Food Availability and Perceived Density in the Cnidarian Hydra vulgaris. Zoolog Sci 2017; 34:318-325. [PMID: 28770685 DOI: 10.2108/zs160171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Insulin/insulin-like growth factor signaling (IIS) is thought to be a central mediator of life history traits, but the generality of its role is not clear. Here, we investigated mRNA expression levels of three insulin-like peptide genes, the insulin-like receptor htk7, as well as several antioxidant genes, and the heat-shock protein hsp70 in the freshwater cnidarian Hydra vulgaris. Hydra polyps were exposed to a combination of different levels of food and perceived population density to manipulate life history traits (asexual reproduction and oxidative stress tolerance). We found that stress tolerance and the rate of asexual reproduction increased with food, and that these two effects were in significant interaction. Exposing animals to high perceived density resulted in increased stress tolerance or reduced reproduction only on lower food levels, but not on high food. The insulin-like receptor htk7 and the antioxidant gene catalase were significantly upregulated in the high density treatments. However, the expression level of insulin-like peptide genes, most antioxidant genes, and hsp70 were not affected by the experimental treatments. The higher expression level of htk7 may suggest that animals maintain a higher level of preparedness for insulin-like ligands at high population densities. However, the lack of difference between food levels suggests that IIS is not involved in regulating asexual reproduction and stress tolerance in hydra, or that its role is more subtle than a simple model of life history regulation would suggest.
Collapse
Affiliation(s)
- Flóra Sebestyén
- 1 MTA-DE "Lendület" Behavioral Ecology Research Group, Dept. of Evolutionary Zoology, University of Debrecen, 4032 Debrecen, Egyetem tér 1., Hungary
| | - Szilárd Póliska
- 2 Department of Biochemistry and Molecular Biology, University of Debrecen, 4032 Debrecen, Egyetem tér 1., Hungary
| | - Rita Rácz
- 1 MTA-DE "Lendület" Behavioral Ecology Research Group, Dept. of Evolutionary Zoology, University of Debrecen, 4032 Debrecen, Egyetem tér 1., Hungary
| | - Judit Bereczki
- 1 MTA-DE "Lendület" Behavioral Ecology Research Group, Dept. of Evolutionary Zoology, University of Debrecen, 4032 Debrecen, Egyetem tér 1., Hungary
| | - Kinga Lénárt
- 1 MTA-DE "Lendület" Behavioral Ecology Research Group, Dept. of Evolutionary Zoology, University of Debrecen, 4032 Debrecen, Egyetem tér 1., Hungary
| | - Zoltán Barta
- 1 MTA-DE "Lendület" Behavioral Ecology Research Group, Dept. of Evolutionary Zoology, University of Debrecen, 4032 Debrecen, Egyetem tér 1., Hungary
| | - Ádám Z Lendvai
- 3 Dept. of Evolutionary Zoology and Human Biology, University of Debrecen, 4032 Debrecen, Egyetem tér 1., Hungary
| | - Jácint Tökölyi
- 1 MTA-DE "Lendület" Behavioral Ecology Research Group, Dept. of Evolutionary Zoology, University of Debrecen, 4032 Debrecen, Egyetem tér 1., Hungary
| |
Collapse
|
41
|
Abstract
A high-sugar diet has been associated with reduced lifespan in organisms ranging from worms to mammals. However, the mechanisms underlying the harmful effects of glucose are poorly understood. Here we establish a causative relationship between endogenous glucose storage in the form of glycogen, resistance to oxidative stress and organismal aging in Caenorhabditis elegans. We find that glycogen accumulated on high dietary glucose limits C. elegans longevity. Glucose released from glycogen and used for NADPH/glutathione reduction renders nematodes and human hepatocytes more resistant against oxidative stress. Exposure to low levels of oxidants or genetic inhibition of glycogen synthase depletes glycogen stores and extends the lifespan of animals fed a high glucose diet in an AMPK-dependent manner. Moreover, glycogen interferes with low insulin signalling and accelerates aging of long-lived daf-2 worms fed a high glucose diet. Considering its extensive evolutionary conservation, our results suggest that glycogen metabolism might also have a role in mammalian aging. Glycogen is a storage form of glucose in cells. Here, Gusarov et al. show that glycogen-derived glucose can be used to quickly regenerate the antioxidant glutathione and that inhibiting glycogen synthesis extends C. elegans lifespan, whereas glycogen accumulation drives organismal ageing in worms.
Collapse
|
42
|
Devagi G, Shanmugam G, Mohankumar A, Sundararaj P, Dallemer F, Kalaivani P, Prabhakaran R. Caenorhabditis elegans as a model for exploring the efficacy of synthesized organoruthenium complexes for aging and Alzheimer's disease a neurodegenerative disorder: A systematic approach. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.03.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
43
|
Wang J, Zeng G, Huang X, Wang Z, Tan N. 1,4-Naphthoquinone Triggers Nematode Lethality by Inducing Oxidative Stress and Activating Insulin/IGF Signaling Pathway in Caenorhabditis elegans. Molecules 2017; 22:molecules22050798. [PMID: 28505088 PMCID: PMC6154497 DOI: 10.3390/molecules22050798] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 05/08/2017] [Accepted: 05/09/2017] [Indexed: 11/16/2022] Open
Abstract
Plant-parasitic nematodes are destructive pathogens causing enormous economic losses worldwide. With the withdrawal of fumigants, organophosphates and carbamates, pathogenic nematode control is more difficult. Phytochemicals are the plant secondary metabolites and are friendly for men and the environment. For developing new nematocidal candidates, we screened 790 phytochemicals using the model organism Caenorhabditis elegans and found 10 active compounds, 3 of which were further evaluated for their inhibitory activities against egg hatching of C. elegans and J2 Meloidogyne incognita. Among them, 1,4-naphthoquinone (1,4-NQ) was the only compound that could kill more than 50% of targets at 50 μg/mL, prompting us to investigate how 1,4-NQ triggers nematode lethality. In C. elegans, we observed that 1,4-NQ could influence reactive oxygen production, superoxide dismutase activity, and the heat-shock transcription factor (HSF)-1 pathway, which indicated that 1,4-NQ stimulated significant oxidative stress. Furthermore, using quantitative RT-PCR and transgenetic nematodes, we revealed that 1,4-NQ lethality was related to the Insulin/IGF signaling (IIS) pathway, and the effect of 1,4-NQ on IIS pathway related genes indicated that 1,4-NQ could activate this pathway and suppress the expression of DAF-16 target genes. The triggering of oxidative stress and activation of the IIS pathway indicated that 1,4-NQ operates through the generation of oxygen radicals, which can be lethal to C. elegans, thus making it an interesting lead compound for the development of future nematocides.
Collapse
Affiliation(s)
- Jia Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
- School of Traditional Chinese Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Guangzhi Zeng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine, Yunnan Minzu University, Kunming 650500, China.
| | - Xiaobing Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Zhe Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
- School of Traditional Chinese Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China.
| | - Ninghua Tan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
- School of Traditional Chinese Pharmacy and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China.
| |
Collapse
|
44
|
Han Y, Song S, Wu H, Zhang J, Ma E. Antioxidant enzymes and their role in phoxim and carbaryl stress in Caenorhabditis elegans. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2017; 138:43-50. [PMID: 28456303 DOI: 10.1016/j.pestbp.2017.02.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 02/21/2017] [Accepted: 02/22/2017] [Indexed: 06/07/2023]
Abstract
Pesticide exposure can induce oxidative stress and cause changes to antioxidant enzymes in living organisms. In the present study, the effects of phoxim (an organophosphorus insecticide) and carbaryl (a carbamate insecticide) on antioxidant enzyme activity and gene expression were investigated in the model organism Caenorhabditis elegans. The results show that phoxim exposure can induce superoxide dismutase (SOD) and catalase (CAT) activities and decrease glutathione peroxidase (GPx) activity at lower concentrations. The expression levels of sod-3, sod-5, ctl-1, gpx-6, and gpx-8 were up-regulated after treatment with phoxim. The mRNA expression levels of sod-5, ctl-1 and gpx-6 were increased approximately 70-, 170- and 130-fold, respectively, in the 0.25mM treatment group compared to the control group. Carbaryl exposure decreased SOD activity and induced CAT and GPx activities. The addition of carbaryl up-regulated the expression of sod-5, ctl-1, ctl-3 and gpx-8. Specifically, ctl-1 expression increased approximately 10-fold, and gpx-8 expression increased <30-fold in the 0.5mM treatment group relative to the control group. The transcript level of sod-5 increased >20-fold, and ctl-3 increased approximately 10-fold in the 1mM treatment group. The functions of the antioxidant enzymes during oxidative stress caused by the two insecticides were investigated using deletion mutants. The LC50 values phoxim for the of sod-3 (tm760), sod-5 (tm1146), ctl-1 (ok1242), ctl-3 (ok2042) and gpx-8 (tm2108) mutant strains were lower than those observed for the N2 strain. The LC50 values of carbaryl for the ctl-1 (ok1242), ctl-3 (ok2042) and gpx-6 (tm2535) deletion mutant strains decreased in comparison to the N2 strain. The results suggest that these two insecticides caused oxidative stress and changed altered the antioxidant enzyme activities and their gene expressions in C. elegans. The sod-3, sod-5, ctl-1, ctl-3, gpx-6, and gpx-8 encoding enzymes may play roles in defending cells from oxidative stress caused by these two insecticides.
Collapse
Affiliation(s)
- Yan Han
- Institute of Applied Biology, Shanxi University, 92 Wucheng Road, Taiyuan, Shanxi 030006, China; School of Life Science, Shanxi University, 92 Wucheng Road, Taiyuan, Shanxi 030006, China; Shanxi Key Laboratory of Integrated Pest Management in Agriculture, 92 Wucheng Road, Taiyuan, Shanxi 030006, China
| | - Shaojuan Song
- Basic Medical College, Changzhi Medical College, Changzhi, Shanxi 046000, China
| | - Haihua Wu
- Institute of Applied Biology, Shanxi University, 92 Wucheng Road, Taiyuan, Shanxi 030006, China; Shanxi Key Laboratory of Integrated Pest Management in Agriculture, 92 Wucheng Road, Taiyuan, Shanxi 030006, China
| | - Jianzhen Zhang
- Institute of Applied Biology, Shanxi University, 92 Wucheng Road, Taiyuan, Shanxi 030006, China; Shanxi Key Laboratory of Integrated Pest Management in Agriculture, 92 Wucheng Road, Taiyuan, Shanxi 030006, China
| | - Enbo Ma
- Institute of Applied Biology, Shanxi University, 92 Wucheng Road, Taiyuan, Shanxi 030006, China; Shanxi Key Laboratory of Integrated Pest Management in Agriculture, 92 Wucheng Road, Taiyuan, Shanxi 030006, China.
| |
Collapse
|
45
|
Braeckman BP, Dhondt I. Lifespan extension in Caenorhabditis elegans insulin/IGF-1 signalling mutants is supported by non-vertebrate physiological traits. NEMATOLOGY 2017. [DOI: 10.1163/15685411-00003060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The insulin/IGF-1 signalling (IIS) pathway connects nutrient levels to metabolism, growth and lifespan in eukaryotes ranging from yeasts to humans, including nematodes such as the genetic model organismCaenorhabditis elegans. The link between ageing and the IIS pathway has been thoroughly studied inC. elegans; upon reduced IIS signalling, a genetic survival program is activated resulting in a drastic lifespan extension. One of the components of this program is the upregulation of antioxidant activity but experiments failed to show a clear causal relation to longevity. However, oxidative damage, such as protein carbonyls, accumulates at a slower pace in long-livedC. elegansmutants with reduced IIS. This is probably not achieved by increased macroautophagy, a process that sequesters cellular components to be eliminated as protein turnover rates are slowed down in IIS mutants. The IIS mutantdaf-2, bearing a mutation in the insulin/IGF-1 receptor, recapitulates the dauer survival program, including accumulation of fat and glycogen. Fat can be converted into glucose and glycogenviathe glyoxylate shunt, a pathway absent in vertebrates. These carbohydrates can be used as substrates for trehalose synthesis, also absent in mammals. Trehalose, a non-reducing homodimer of glucose, stabilises intracellular components and is responsible for almost half of the lifespan extension in IIS mutants. Hence, the molecular mechanisms by which lifespan is extended under reduced IIS may differ substantially between phyla that have an active glyoxylate cycle and trehalose synthesis, such as ecdysozoans and fungi, and vertebrate species such as mammals.
Collapse
Affiliation(s)
- Bart P. Braeckman
- Biology Department, Ghent University, Proeftuinstraat 86 N1, Ghent, Belgium
| | - Ineke Dhondt
- Biology Department, Ghent University, Proeftuinstraat 86 N1, Ghent, Belgium
| |
Collapse
|
46
|
|
47
|
Moon J, Kwak JI, Kim SW, An YJ. Multigenerational effects of gold nanoparticles in Caenorhabditis elegans: Continuous versus intermittent exposures. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:46-52. [PMID: 27634002 DOI: 10.1016/j.envpol.2016.09.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/06/2016] [Accepted: 09/07/2016] [Indexed: 05/29/2023]
Abstract
Nanomaterials can become disseminated directly or indirectly into the soil ecosystem through various exposure routes. Thus, it is important to study various deposition routes of nanomaterials into the soil, as well as their toxicities. Here, we investigated the multigenerational effects of gold nanoparticles (AuNPs) on C. elegans after continuous or intermittent food intake. Following continuous exposure, significant differences were observed in the reproduction rate of C. elegans in the F2-F4 generations, which were associated with reproductive system abnormalities. However, following intermittent AuNP exposure in P0 and F3, reproductive system abnormalities and inhibited reproduction rates were observed in F2 and F3. While continuous AuNP exposure impaired reproduction from F2 to F4, intermittent exposure caused more pronounced effects on F3 worms, which may have resulted from damage during the convalescence period up through F2. These data showed the occurrence of multigenerational effects following different exposure patterns, exposure levels, and recovery periods. To our knowledge, this is the first study to demonstrate that multigenerational nano-toxicity is caused by different exposure patterns and provides insights into the unpredictable exposure scenarios of AuNPs and their adverse effects.
Collapse
Affiliation(s)
- Jongmin Moon
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Jin Il Kwak
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Shin Woong Kim
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Youn-Joo An
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
| |
Collapse
|
48
|
Altintas O, Park S, Lee SJV. The role of insulin/IGF-1 signaling in the longevity of model invertebrates, C. elegans and D. melanogaster. BMB Rep 2016; 49:81-92. [PMID: 26698870 PMCID: PMC4915121 DOI: 10.5483/bmbrep.2016.49.2.261] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 01/08/2023] Open
Abstract
Insulin/insulin-like growth factor (IGF)-1 signaling (IIS) pathway regulates
aging in many organisms, ranging from simple invertebrates to mammals, including
humans. Many seminal discoveries regarding the roles of IIS in aging and
longevity have been made by using the roundworm Caenorhabditis
elegans and the fruit fly Drosophila melanogaster. In this
review, we describe the mechanisms by which various IIS components regulate
aging in C. elegans and D. melanogaster. We
also cover systemic and tissue-specific effects of the IIS components on the
regulation of lifespan. We further discuss IIS-mediated physiological processes
other than aging and their effects on human disease models focusing on
C. elegans studies. As both C. elegans and
D. melanogaster have been essential for key findings
regarding the effects of IIS on organismal aging in general, these invertebrate
models will continue to serve as workhorses to help our understanding of
mammalian aging. [BMB Reports 2016; 49(2): 81-92]
Collapse
Affiliation(s)
- Ozlem Altintas
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Sangsoon Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Seung-Jae V Lee
- School of Interdisciplinary Bioscience and Bioengineering, Department of Life Sciences, and Information Technology Convergence Engineering, Pohang University of Science and Technology, Pohang 37673, Korea
| |
Collapse
|
49
|
Schlotterer A, Greten HJ, Remppis BA, Kukudov G, Efferth T, Machado J, Humpert P, Hammes HP, Morcos M. Neuroprotection and antioxidative effects of Sijunzi Tang Decoction in the nematode Caenorhabditis elegans. Eur J Integr Med 2016. [DOI: 10.1016/j.eujim.2016.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
50
|
Zhou L, Wang F, Sun R, Chen X, Zhang M, Xu Q, Wang Y, Wang S, Xiong Y, Guan KL, Yang P, Yu H, Ye D. SIRT5 promotes IDH2 desuccinylation and G6PD deglutarylation to enhance cellular antioxidant defense. EMBO Rep 2016; 17:811-22. [PMID: 27113762 DOI: 10.15252/embr.201541643] [Citation(s) in RCA: 186] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 03/08/2016] [Indexed: 11/09/2022] Open
Abstract
Excess in mitochondrial reactive oxygen species (ROS) is considered as a major cause of cellular oxidative stress. NADPH, the main intracellular reductant, has a key role in keeping glutathione in its reduced form GSH, which scavenges ROS and thus protects the cell from oxidative damage. Here, we report that SIRT5 desuccinylates and deglutarylates isocitrate dehydrogenase 2 (IDH2) and glucose-6-phosphate dehydrogenase (G6PD), respectively, and thus activates both NADPH-producing enzymes. Moreover, we show that knockdown or knockout of SIRT5 leads to high levels of cellular ROS SIRT5 inactivation leads to the inhibition of IDH2 and G6PD, thereby decreasing NADPH production, lowering GSH, impairing the ability to scavenge ROS, and increasing cellular susceptibility to oxidative stress. Our study uncovers a SIRT5-dependent mechanism that regulates cellular NADPH homeostasis and redox potential by promoting IDH2 desuccinylation and G6PD deglutarylation.
Collapse
Affiliation(s)
- Lisha Zhou
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fang Wang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Renqiang Sun
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiufei Chen
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Mengli Zhang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qi Xu
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yi Wang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shiwen Wang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yue Xiong
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China Department of Biochemistry and Biophysics, Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Kun-Liang Guan
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China Department of Pharmacology and Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Pengyuan Yang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hongxiu Yu
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Dan Ye
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Fudan University, Shanghai, China Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, China
| |
Collapse
|