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Wang J, Wang Y, Xu X, Song C, Zhou Y, Xue D, Feng Z, Zhou Y, Li X. Low methyl-esterified ginseng homogalacturonan pectins promote longevity of Caenorhabditis elegans via impairing insulin/IGF-1 signalling. Carbohydr Polym 2024; 346:122600. [PMID: 39245488 DOI: 10.1016/j.carbpol.2024.122600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 07/31/2024] [Accepted: 08/08/2024] [Indexed: 09/10/2024]
Abstract
Panax ginseng C. A. Meyer (ginseng) is a medicinal plant widely used for promoting longevity. Recently, homogalacturonan (HG) domain-rich pectins purified from some plants have been reported to have anti-aging-related activities, leading us to explore the longevity-promoting activity of the HG pectins from ginseng. In this study, we discovered that two of low methyl-esterified ginseng HG pectins (named as WGPA-2-HG and WGPA-3-HG), whose degree of methyl-esterification (DM) was 16 % and 8 % respectively, promoted longevity in Caenorhabditis elegans. Results showed that WGPA-2-HG/WGPA-3-HG impaired insulin/insulin-like growth factor 1 (IGF-1) signalling (IIS) pathway, thereby increasing the nuclear accumulation of transcription factors SKN-1/Nrf2 and DAF-16/FOXO and enhancing the expression of relevant anti-aging genes. BLI and ITC analysis showed that the insulin-receptor binding, the first step to activate IIS pathway, was impeded by the engagement of WGPA-2-HG/WGPA-3-HG with insulin. By chemical modifications, we found that high methyl-esterification of WGPA-2-HG/WGPA-3-HG was detrimental for their longevity-promoting activity. These findings provided novel insight into the precise molecular mechanism for the longevity-promoting effect of ginseng pectins, and suggested a potential to utilize the ginseng HG pectins with appropriate DM values as natural nutrients for increasing human longevity.
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Affiliation(s)
- Jiayi Wang
- Engineering Research Center of Glycoconjugates of the Ministry of Education, The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun 130024, China; School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, China
| | - Yuan Wang
- Engineering Research Center of Glycoconjugates of the Ministry of Education, The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
| | - Xuejiao Xu
- Engineering Research Center of Glycoconjugates of the Ministry of Education, The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
| | - Chengcheng Song
- Engineering Research Center of Glycoconjugates of the Ministry of Education, The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
| | - Yuwei Zhou
- Engineering Research Center of Glycoconjugates of the Ministry of Education, The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
| | - Dongxue Xue
- Engineering Research Center of Glycoconjugates of the Ministry of Education, The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
| | - Zhangkai Feng
- Engineering Research Center of Glycoconjugates of the Ministry of Education, The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
| | - Yifa Zhou
- Engineering Research Center of Glycoconjugates of the Ministry of Education, The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun 130024, China
| | - Xiaoxue Li
- Engineering Research Center of Glycoconjugates of the Ministry of Education, The Key Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Science, Northeast Normal University, Changchun 130024, China.
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2
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Maza-Lopez J, Jiménez-Jacinto V, Bermúdez-Morales VH, Alonso-Morales RA, Reyes-Guerrero DE, Higuera-Piedrahita RI, Camas-Pereyra R, López-Arellano ME. Molecular study of the transcription factor SKN-1 and its putative relationship with genes that encode GST and antioxidant enzymes in Haemonchus contortus. Vet Parasitol 2024; 331:110255. [PMID: 39084102 DOI: 10.1016/j.vetpar.2024.110255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 08/02/2024]
Abstract
Haemonchus contortus is a parasitic nematode of ruminants. Once inside its host, it is exposed to reactive oxidative species and responds by synthesising antioxidant enzymes as a defence. In Caenorhabditis elegans, antioxidant genes are regulated by the transcription factor skinhead-1 (Cel-SKN-1). However, there is little information about the function of SKN-1 in H. contortus (Hco-SKN-1). Therefore, we performed a molecular investigation to characterise Hco-SKN-1 and its putative relationship with genes encode antioxidant enzymes, namely glutathione S-transferases (Hco-GSTs, n = 3), superoxide dismutase (Hco-SOD) and catalase (Hco-CAT), which are involved in haematophagy and defence against the host. We used in silico sequence analysis of Hco-SKN-1 and Hco-GSTs to design and perform relative expression assays involving H. contortus eggs, infective larvae (L3) and adults. Furthermore, we exposed H. contortus transitional infective larvae (xL3) to erythrocytes or hydrogen peroxide (H2O2) and evaluated the relative expression of antioxidant genes at 24 or 48 h. Gene Ontology (GO) analysis revealed 31 functions associated with Hco-SKN-1 and Hco-GSTs, including stress resistance, larval development and the active immune response. Hco-GST-5957 and Hco-SOD showed the highest expression in adults, indicating a relationship with specific functions at this mature stage. xL3 exposed to erythrocytes or H2O2 showed significant upregulation of Hco-SKN-1, but it occurred after upregulation of the antioxidant genes, indicating that these genes are not regulated by Hco-SKN-1 during the blood-feeding stage. Additional investigation is necessary to understand the putative regulation of antioxidant genes by Hco-SKN-1 during the blood-feeding stage.
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Affiliation(s)
- Jocelyn Maza-Lopez
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, Mexico
| | - Verónica Jiménez-Jacinto
- Unidad Universitaria de Secuenciación Masiva y Bioinformática, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001, Chamilpa, Cuernavaca, Morelos 62210, Mexico
| | - Víctor H Bermúdez-Morales
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Av. Universidad ♯655, Col. Santa María Ahuacatitlán, Cuernavaca, Morelos 62100, Mexico
| | - Rogelio A Alonso-Morales
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, Mexico
| | - David E Reyes-Guerrero
- Centro Nacional de Investigación Disciplinaria en Salud Animal e Inocuidad, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Carr. Fed. Cuernavaca-Cuautla 8534, Jiutepec, Morelos 62574, Mexico
| | - Rosa I Higuera-Piedrahita
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, Mexico
| | - Rene Camas-Pereyra
- Centro Nacional de Investigación Disciplinaria en Salud Animal e Inocuidad, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Carr. Fed. Cuernavaca-Cuautla 8534, Jiutepec, Morelos 62574, Mexico
| | - Maria Eugenia López-Arellano
- Centro Nacional de Investigación Disciplinaria en Salud Animal e Inocuidad, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Carr. Fed. Cuernavaca-Cuautla 8534, Jiutepec, Morelos 62574, Mexico.
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3
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Tse-Kang SY, Pukkila-Worley R. Lysosome-related organelle integrity suppresses TIR-1 aggregation to restrain toxic propagation of p38 innate immunity. Cell Rep 2024; 43:114674. [PMID: 39299237 DOI: 10.1016/j.celrep.2024.114674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 06/19/2024] [Accepted: 08/08/2024] [Indexed: 09/22/2024] Open
Abstract
Innate immunity in bacteria, plants, and animals requires the specialized subset of Toll/interleukin-1/resistance gene (TIR) domain proteins that are nicotinamide adenine dinucleotide (NAD+) hydrolases. Aggregation of these TIR proteins engages their enzymatic activity, but it is unknown how this protein multimerization is regulated. Here, we discover that TIR oligomerization is controlled to prevent immune toxicity. We find that p38 propagates its own activation in a positive feedback loop, which promotes the aggregation of the lone enzymatic TIR protein in the nematode C. elegans (TIR-1, homologous to human sterile alpha and TIR motif-containing 1 [SARM1]). We perform a forward genetic screen to determine how the p38 positive feedback loop is regulated. We discover that the integrity of the specific lysosomal subcompartment that expresses TIR-1 is actively maintained to limit inappropriate TIR-1 aggregation on the membranes of these organelles, which restrains toxic propagation of p38 innate immunity. Thus, innate immunity in C. elegans intestinal epithelial cells is regulated by specific control of TIR-1 multimerization.
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Affiliation(s)
- Samantha Y Tse-Kang
- Program in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, UMass Chan Medical School, Worcester, MA, USA
| | - Read Pukkila-Worley
- Program in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, UMass Chan Medical School, Worcester, MA, USA.
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4
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Nair T, Weathers BA, Stuhr NL, Nhan JD, Curran SP. Serotonin deficiency from constitutive SKN-1 activation drives pathogen apathy. Nat Commun 2024; 15:8129. [PMID: 39285192 PMCID: PMC11405893 DOI: 10.1038/s41467-024-52233-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 08/29/2024] [Indexed: 09/20/2024] Open
Abstract
When an organism encounters a pathogen, the host innate immune system activates to defend against pathogen colonization and toxic xenobiotics produced. C. elegans employ multiple defense systems to ensure survival when exposed to Pseudomonas aeruginosa including activation of the cytoprotective transcription factor SKN-1/NRF2. Although wildtype C. elegans quickly learn to avoid pathogens, here we describe a peculiar apathy-like behavior towards PA14 in animals with constitutive activation of SKN-1, whereby animals choose not to leave and continue to feed on the pathogen even when a non-pathogenic and healthspan-promoting food option is available. Although lacking the urgency to escape the infectious environment, animals with constitutive SKN-1 activity are not oblivious to the presence of the pathogen and display the typical pathogen-induced intestinal distension and eventual demise. SKN-1 activation, specifically in neurons and intestinal tissues, orchestrates a unique transcriptional program which leads to defects in serotonin signaling that is required from both neurons and non-neuronal tissues. Serotonin depletion from SKN-1 activation limits pathogen defenses capacity, drives the pathogen-associated apathy behaviors and induces a synthetic sensitivity to selective serotonin reuptake inhibitors. Taken together, our work reveals interesting insights into how animals perceive environmental pathogens and subsequently alter behavior and cellular programs to promote survival.
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Affiliation(s)
- Tripti Nair
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - Brandy A Weathers
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
- Department of Molecular and Computational Biology, University of Southern California, Los Angeles, CA, USA
| | - Nicole L Stuhr
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
- Department of Molecular and Computational Biology, University of Southern California, Los Angeles, CA, USA
| | - James D Nhan
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
- Department of Molecular and Computational Biology, University of Southern California, Los Angeles, CA, USA
| | - Sean P Curran
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA.
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5
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Mo A, Liang Y, Cao X, Jiang J, Liu Y, Cao X, Qiu Y, He D. Polymer chain extenders induce significant toxicity through DAF-16 and SKN-1 pathways in Caenorhabditis elegans: A comparative analysis. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134730. [PMID: 38797076 DOI: 10.1016/j.jhazmat.2024.134730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/19/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Polymer chain extenders, commonly used in plastic production, have garnered increasing attention due to their potential environmental impacts. However, a comprehensive understanding of their ecological risks remains largely unknown. In this study, we employed the model organism Caenorhabditis elegans to investigate toxicological profiles of ten commonly-used chain extenders. Exposure to environmentally relevant concentrations of these chain extenders (ranging from 0.1 µg L-1 to 10 mg L-1) caused significant variations in toxicity. Lethality assays demonstrated the LC50 values ranged from 92.42 µg L-1 to 1553.65 mg L-1, indicating marked differences in acute toxicity. Sublethal exposures could inhibit nematodes' growth, shorten lifespan, and induce locomotor deficits, neuronal damage, and reproductive toxicity. Molecular analyses further elucidated the involvement of the DAF-16 and SKN-1 signaling pathways, as evidenced by upregulated expression of genes including ctl-1,2,3, sod-3, gcs-1, and gst-4. It implicates these pathways in mediating oxidative stress and toxicities induced by chain extenders. Particularly, hexamethylene diisocyanate and diallyl maleate exhibited markedly high toxicity among the chain extenders, as revealed through a comparative analysis of multiple endpoints. These findings demonstrate the potential ecotoxicological risks of polymer chain extenders, and suggest the need for more rigorous environmental safety assessments.
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Affiliation(s)
- Aoyun Mo
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China
| | - Yuqing Liang
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China
| | - Xiaomu Cao
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China; Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, China
| | - Jie Jiang
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China; Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, China
| | - Yan Liu
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China
| | - Xuelong Cao
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China
| | - Yuping Qiu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Defu He
- School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China; Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, China; Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area, Ministry of Natural Resources, Shanghai 200062, China.
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6
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Li W, McIntyre RL, Schomakers BV, Kamble R, Luesink AH, van Weeghel M, Houtkooper RH, Gao AW, Janssens GE. Low-dose naltrexone extends healthspan and lifespan in C. elegans via SKN-1 activation. iScience 2024; 27:109949. [PMID: 38799567 PMCID: PMC11126937 DOI: 10.1016/j.isci.2024.109949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/16/2024] [Accepted: 05/06/2024] [Indexed: 05/29/2024] Open
Abstract
As the global aging population rises, finding effective interventions to improve aging health is crucial. Drug repurposing, utilizing existing drugs for new purposes, presents a promising strategy for rapid implementation. We explored naltrexone from the Library of Integrated Network-based Cellular Signatures (LINCS) based on several selection criteria. Low-dose naltrexone (LDN) has gained attention for treating various diseases, yet its impact on longevity remains underexplored. Our study on C. elegans demonstrated that a low dose, but not high dose, of naltrexone extended the healthspan and lifespan. This effect was mediated through SKN-1 (NRF2 in mammals) signaling, influencing innate immune gene expression and upregulating oxidative stress responses. With LDN's low side effects profile, our findings underscore its potential as a geroprotector, suggesting further exploration for promoting healthy aging in humans is warranted.
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Affiliation(s)
- Weisha Li
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Rebecca L. McIntyre
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Bauke V. Schomakers
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Core Facility Metabolomics, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Rashmi Kamble
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Anne H.G. Luesink
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Michel van Weeghel
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Core Facility Metabolomics, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Riekelt H. Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Arwen W. Gao
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Georges E. Janssens
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
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7
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Yue Z, Liu H, Liu M, Wang N, Ye L, Guo C, Zheng B. Cornus officinalis Extract Enriched with Ursolic Acid Ameliorates UVB-Induced Photoaging in Caenorhabditis elegans. Molecules 2024; 29:2718. [PMID: 38930783 PMCID: PMC11206114 DOI: 10.3390/molecules29122718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/04/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Ultraviolet B (UVB) exposure can contribute to photoaging of skin. Cornus officinalis is rich in ursolic acid (UA), which is beneficial to the prevention of photoaging. Because UA is hardly soluble in water, the Cornus officinalis extract (COE) was obtained using water as the antisolvent to separate the components containing UA from the crude extract of Cornus officinalis. The effect of COE on UVB damage was assessed using Caenorhabditis elegans. The results showed that COE could increase the lifespan and enhance the antioxidant enzyme activity of C. elegans exposed to UVB while decreasing the reactive oxygen species (ROS) level. At the same time, COE upregulated the expression of antioxidant-related genes and promoted the migration of SKN-1 to the nucleus. Moreover, COE inhibited the expression of the skn-1 downstream gene and the extension of the lifespan in skn-1 mutants exposed to UVB, indicating that SKN-1 was required for COE to function. Our findings indicate that COE mainly ameliorates the oxidative stress caused by UVB in C. elegans via the SKN-1/Nrf2 pathway.
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Affiliation(s)
- Zengwang Yue
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; (Z.Y.); (M.L.); (L.Y.)
- Research and Development Center, Guangdong Marubi Biotechnology Co., Ltd., Guangzhou 510700, China; (H.L.); (N.W.)
| | - Han Liu
- Research and Development Center, Guangdong Marubi Biotechnology Co., Ltd., Guangzhou 510700, China; (H.L.); (N.W.)
| | - Manqiu Liu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; (Z.Y.); (M.L.); (L.Y.)
| | - Ning Wang
- Research and Development Center, Guangdong Marubi Biotechnology Co., Ltd., Guangzhou 510700, China; (H.L.); (N.W.)
| | - Lin Ye
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; (Z.Y.); (M.L.); (L.Y.)
| | - Chaowan Guo
- Research and Development Center, Guangdong Marubi Biotechnology Co., Ltd., Guangzhou 510700, China; (H.L.); (N.W.)
| | - Bisheng Zheng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; (Z.Y.); (M.L.); (L.Y.)
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Wu Z, Zhang J, Wu Y, Chen M, Hu H, Gao X, Li C, Li M, Zhang Y, Lin X, Yang Q, Chen L, Chen K, Zheng L, Zhu A. Gelsenicine disrupted the intestinal barrier of Caenorhabditis elegans. Chem Biol Interact 2024; 395:111036. [PMID: 38705443 DOI: 10.1016/j.cbi.2024.111036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/23/2024] [Accepted: 05/03/2024] [Indexed: 05/07/2024]
Abstract
Gelsemium elegans Benth. (G. elegans) is a traditional medicinal herb that has anti-inflammatory, analgesic, sedative, and detumescence effects. However, it can also cause intestinal side effects such as abdominal pain and diarrhea. The toxicological mechanisms of gelsenicine are still unclear. The objective of this study was to assess enterotoxicity induced by gelsenicine in the nematodes Caenorhabditis elegans (C. elegans). The nematodes were treated with gelsenicine, and subsequently their growth, development, and locomotion behavior were evaluated. The targets of gelsenicine were predicted using PharmMapper. mRNA-seq was performed to verify the predicted targets. Intestinal permeability, ROS generation, and lipofuscin accumulation were measured. Additionally, the fluorescence intensities of GFP-labeled proteins involved in oxidative stress and unfolded protein response in endoplasmic reticulum (UPRER) were quantified. As a result, the treatment of gelsenicine resulted in the inhibition of nematode lifespan, as well as reductions in body length, width, and locomotion behavior. A total of 221 targets were predicted by PharmMapper, and 731 differentially expressed genes were screened out by mRNA-seq. GO and KEGG enrichment analysis revealed involvement in redox process and transmembrane transport. The permeability assay showed leakage of blue dye from the intestinal lumen into the body cavity. Abnormal mRNAs expression of gem-4, hmp-1, fil-2, and pho-1, which regulated intestinal development, absorption and catabolism, transmembrane transport, and apical junctions, was observed. Intestinal lipofuscin and ROS were increased, while sod-2 and isp-1 expressions were decreased. Multiple proteins in SKN-1/DAF-16 pathway were found to bind stably with gelsenicine in a predictive model. There was an up-regulation in the expression of SKN-1:GFP, while the nuclear translocation of DAF-16:GFP exhibited abnormality. The UPRER biomarker HSP-4:GFP was down-regulated. In conclusion, the treatment of gelsenicine resulted in the increase of nematode intestinal permeability. The toxicological mechanisms underlying this effect involved the disruption of intestinal barrier integrity, an imbalance between oxidative and antioxidant processes mediated by the SKN-1/DAF-16 pathway, and abnormal unfolded protein reaction.
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Affiliation(s)
- Zekai Wu
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China
| | - Jian Zhang
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350108, China
| | - Yajiao Wu
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China
| | - Mengting Chen
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China
| | - Hong Hu
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350108, China
| | - Xinyue Gao
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China
| | - Chutao Li
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China
| | - Maodong Li
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Youbo Zhang
- State key laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Xiaohuang Lin
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China
| | - Qiaomei Yang
- Department of Gynecology, Fujian Maternity and Child Health Hospital (Fujian Obstetrics and Gynecology Hospital, Fuzhou, 350001, China
| | - Li Chen
- Department of Gynecology, Fujian Maternity and Child Health Hospital (Fujian Obstetrics and Gynecology Hospital, Fuzhou, 350001, China
| | - Kunqi Chen
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China.
| | - Lifeng Zheng
- Department of Orthopedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, China.
| | - An Zhu
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350108, China.
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Kishimoto S, Nono M, Makizaki Y, Tanaka Y, Ohno H, Nishida E, Uno M. Lactobacillus paracasei subsp. paracasei 2004 improves health and lifespan in Caenorhabditis elegans. Sci Rep 2024; 14:10453. [PMID: 38714725 PMCID: PMC11076489 DOI: 10.1038/s41598-024-60580-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 04/24/2024] [Indexed: 05/10/2024] Open
Abstract
Recent research has highlighted the importance of the gut microbiome in regulating aging, and probiotics are interventions that can promote gut health. In this study, we surveyed several novel lactic acid bacteria to examine their beneficial effect on organismal health and lifespan in C. elegans. We found that animals fed some lactic acid bacteria, including L. acidophilus 1244 and L. paracasei subsp. paracasei 2004, grew healthy. Supplementation with the lactic acid bacterial strains L. acidophilus 1244 or L. paracasei subsp. paracasei 2004 significantly improved health, including food consumption, motility, and resistance to oxidative stressor, hydrogen peroxide. Our RNA-seq analysis showed that supplementation with L. paracasei subsp. paracasei 2004 significantly increased the expression of daf-16, a C. elegans FoxO homolog, as well as genes related to the stress response. Furthermore, daf-16 deletion inhibited the longevity effect of L. paracasei subsp. paracasei 2004 supplementation. Our results suggest that L. paracasei subsp. paracasei 2004 improves health and lifespan in a DAF-16-dependent manner.
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Affiliation(s)
- Saya Kishimoto
- RIKEN Center for Biosystems Dynamics Research (BDR), 2-2-3 Minatojima-Minamimachi, Chuo-Ku, Kobe, 650-0047, Japan
| | - Masanori Nono
- RIKEN Center for Biosystems Dynamics Research (BDR), 2-2-3 Minatojima-Minamimachi, Chuo-Ku, Kobe, 650-0047, Japan
| | - Yutaka Makizaki
- R&D Center, Biofermin Pharmaceutical Co. Ltd., 7-3-4 Ibukidai-Higashimachi, Nishi-Ku, Kobe, 651-2242, Japan
| | - Yoshiki Tanaka
- R&D Center, Biofermin Pharmaceutical Co. Ltd., 7-3-4 Ibukidai-Higashimachi, Nishi-Ku, Kobe, 651-2242, Japan
| | - Hiroshi Ohno
- R&D Center, Biofermin Pharmaceutical Co. Ltd., 7-3-4 Ibukidai-Higashimachi, Nishi-Ku, Kobe, 651-2242, Japan
| | - Eisuke Nishida
- RIKEN Center for Biosystems Dynamics Research (BDR), 2-2-3 Minatojima-Minamimachi, Chuo-Ku, Kobe, 650-0047, Japan.
| | - Masaharu Uno
- RIKEN Center for Biosystems Dynamics Research (BDR), 2-2-3 Minatojima-Minamimachi, Chuo-Ku, Kobe, 650-0047, Japan.
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10
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Li H, Li H, Zuo N, Lang D, Du W, Zhang P, Pan B. Can the concentration of environmentally persistent free radicals describe its toxicity to Caenorhabditis elegans? Evidence provided by neurotoxicity and oxidative stress. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133823. [PMID: 38442598 DOI: 10.1016/j.jhazmat.2024.133823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/04/2024] [Accepted: 02/16/2024] [Indexed: 03/07/2024]
Abstract
Environmentally persistent free radicals (EPFRs) are emerging pollutants stabilized on or inside particles. Although the toxicity of EPFR-containing particles has been confirmed, the conclusions are always ambiguous because of the presence of various compositions. A clear dose-response relationship was always challenged by the fact that the concentrations of these coexisted components simultaneously changed with EPFR concentrations. Without these solid dose-response pieces of evidence, we could not confidently conclude the toxicity of EPFRs and the description of potential EPFR risks. In this study, we established a particle system with a fixed catechol concentration but different reaction times to obtain particles with different EPFR concentrations. Caenorhabditis elegans (C. elegans) in response to different EPFR concentrations was systematically investigated at multiple biological levels, including behavior observations and biochemical and transcriptome analyses. Our results showed that exposure to EPFRs disrupted the development and locomotion of C. elegans. EPFRs cause concentration-dependent neurotoxicity and oxidative damage to C. elegans, which could be attributed to reactive oxygen species (ROS) promoted by EPFRs. Furthermore, the expression of key genes related to neurons was downregulated, whereas antioxidative genes were upregulated. Overall, our results confirmed the toxicity from EPFRs and EPFR concentration as a rational parameter to describe the extent of toxicity.
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Affiliation(s)
- Huijie Li
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Hao Li
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Ning Zuo
- Yunnan Research Academy of Eco-environmental Science, Kunming 650034, China
| | - Di Lang
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Wei Du
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Peng Zhang
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Bo Pan
- Yunnan Provincial Key Lab of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
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11
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Tossounian MA, Zhao Y, Yu BYK, Markey SA, Malanchuk O, Zhu Y, Cain A, Gout I. Low-molecular-weight thiol transferases in redox regulation and antioxidant defence. Redox Biol 2024; 71:103094. [PMID: 38479221 PMCID: PMC10950700 DOI: 10.1016/j.redox.2024.103094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/08/2024] [Accepted: 02/18/2024] [Indexed: 03/24/2024] Open
Abstract
Low-molecular-weight (LMW) thiols are produced in all living cells in different forms and concentrations. Glutathione (GSH), coenzyme A (CoA), bacillithiol (BSH), mycothiol (MSH), ergothioneine (ET) and trypanothione T(SH)2 are the main LMW thiols in eukaryotes and prokaryotes. LMW thiols serve as electron donors for thiol-dependent enzymes in redox-mediated metabolic and signaling processes, protect cellular macromolecules from oxidative and xenobiotic stress, and participate in the reduction of oxidative modifications. The level and function of LMW thiols, their oxidized disulfides and mixed disulfide conjugates in cells and tissues is tightly controlled by dedicated oxidoreductases, such as peroxiredoxins, glutaredoxins, disulfide reductases and LMW thiol transferases. This review provides the first summary of the current knowledge of structural and functional diversity of transferases for LMW thiols, including GSH, BSH, MSH and T(SH)2. Their role in maintaining redox homeostasis in single-cell and multicellular organisms is discussed, focusing in particular on the conjugation of specific thiols to exogenous and endogenous electrophiles, or oxidized protein substrates. Advances in the development of new research tools, analytical methodologies, and genetic models for the analysis of known LMW thiol transferases will expand our knowledge and understanding of their function in cell growth and survival under oxidative stress, nutrient deprivation, and during the detoxification of xenobiotics and harmful metabolites. The antioxidant function of CoA has been recently discovered and the breakthrough in defining the identity and functional characteristics of CoA S-transferase(s) is soon expected.
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Affiliation(s)
- Maria-Armineh Tossounian
- Department of Structural and Molecular Biology, University College London, London, WC1E 6BT, United Kingdom
| | - Yuhan Zhao
- Department of Structural and Molecular Biology, University College London, London, WC1E 6BT, United Kingdom
| | - Bess Yi Kun Yu
- Department of Structural and Molecular Biology, University College London, London, WC1E 6BT, United Kingdom
| | - Samuel A Markey
- Department of Structural and Molecular Biology, University College London, London, WC1E 6BT, United Kingdom
| | - Oksana Malanchuk
- Department of Structural and Molecular Biology, University College London, London, WC1E 6BT, United Kingdom; Department of Cell Signaling, Institute of Molecular Biology and Genetics, Kyiv, 143, Ukraine
| | - Yuejia Zhu
- Department of Structural and Molecular Biology, University College London, London, WC1E 6BT, United Kingdom
| | - Amanda Cain
- Department of Structural and Molecular Biology, University College London, London, WC1E 6BT, United Kingdom
| | - Ivan Gout
- Department of Structural and Molecular Biology, University College London, London, WC1E 6BT, United Kingdom; Department of Cell Signaling, Institute of Molecular Biology and Genetics, Kyiv, 143, Ukraine.
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12
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Pei H, Lin Z, Yao K, Luo Y, Tong P, Chen H, Wu Y, Wu Z, Gao J. Ovalbumin promotes innate immune response of Caenorhabditis elegans through DAF-16 and SKN-1 pathways in insulin/IGF-1 signaling. J Physiol Biochem 2024:10.1007/s13105-024-01021-2. [PMID: 38632209 DOI: 10.1007/s13105-024-01021-2] [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: 12/07/2023] [Accepted: 04/05/2024] [Indexed: 04/19/2024]
Abstract
Ovalbumin (OVA) is a major allergen in eggs and could induce severe allergic reactions in sensitive individuals, where the innate immune system works as a regulator. The mechanism of how innate immunity adjusts to food allergy is relatively well-studied, however, the effects of allergen uptake on the innate immune system remain unclear. Therefore, the Caenorhabditis elegans (C. elegans) model was utilized to assess the effects of OVA on its innate immune system. OVA enhanced the immune response of C. elegans with higher survival rates under Pseudomonas aeruginosa infection. Moreover, sustaining OVA treatment improved the health states that were reflected in the prolonged lifespan, alleviated oxidative stress, accelerated growth, and promoted motility. RNA-sequencing analysis and the slow-killing assays in the mutants of insulin/IGF-1 signaling (IIS)-related genes confirmed that IIS was necessary for OVA to regulate innate immunity. Besides, OVA activated SKN-1 temporarily and facilitated the nuclear localization of DAF-16 for improving immunity and health status in C. elegans. Together, OVA could enhance the innate immune responses via DAF-16 and SKN-1 pathways in the IIS of C. elegans, and this work will provide novel insights into the regulation of innate immunity by OVA in higher organisms.
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Affiliation(s)
- Haibing Pei
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, P.R. China
- College of Food Science & Technology, Nanchang University, Nanchang, 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang, 330047, P.R. China
| | - Zhiyin Lin
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, P.R. China
- College of Food Science & Technology, Nanchang University, Nanchang, 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang, 330047, P.R. China
| | - Kexin Yao
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, P.R. China
- College of Food Science & Technology, Nanchang University, Nanchang, 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang, 330047, P.R. China
| | - Yeqing Luo
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, P.R. China
- College of Food Science & Technology, Nanchang University, Nanchang, 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang, 330047, P.R. China
| | - Ping Tong
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, P.R. China.
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang, 330047, P.R. China.
| | - Hongbing Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang, 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, 330047, P.R. China
| | - Yong Wu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang, 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, 330047, P.R. China
| | - Zhihua Wu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, P.R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang, 330047, P.R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, 330047, P.R. China
| | - Jinyan Gao
- College of Food Science & Technology, Nanchang University, Nanchang, 330047, P.R. China.
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang, 330047, P.R. China.
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13
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Vergani-Junior CA, Moro RDP, Pinto S, De-Souza EA, Camara H, Braga DL, Tonon-da-Silva G, Knittel TL, Ruiz GP, Ludwig RG, Massirer KB, Mair WB, Mori MA. An Intricate Network Involving the Argonaute ALG-1 Modulates Organismal Resistance to Oxidative Stress. Nat Commun 2024; 15:3070. [PMID: 38594249 PMCID: PMC11003958 DOI: 10.1038/s41467-024-47306-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 03/24/2024] [Indexed: 04/11/2024] Open
Abstract
Cellular response to redox imbalance is crucial for organismal health. microRNAs are implicated in stress responses. ALG-1, the C. elegans ortholog of human AGO2, plays an essential role in microRNA processing and function. Here we investigated the mechanisms governing ALG-1 expression in C. elegans and the players controlling lifespan and stress resistance downstream of ALG-1. We show that upregulation of ALG-1 is a shared feature in conditions linked to increased longevity (e.g., germline-deficient glp-1 mutants). ALG-1 knockdown reduces lifespan and oxidative stress resistance, while overexpression enhances survival against pro-oxidant agents but not heat or reductive stress. R02D3.7 represses alg-1 expression, impacting oxidative stress resistance at least in part via ALG-1. microRNAs upregulated in glp-1 mutants (miR-87-3p, miR-230-3p, and miR-235-3p) can target genes in the protein disulfide isomerase pathway and protect against oxidative stress. This study unveils a tightly regulated network involving transcription factors and microRNAs which controls organisms' ability to withstand oxidative stress.
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Affiliation(s)
- Carlos A Vergani-Junior
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Raíssa De P Moro
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Silas Pinto
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Evandro A De-Souza
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Henrique Camara
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Section on Integrative Physiology & Metabolism, Joslin Diabetes Center, Boston, MA, USA
| | - Deisi L Braga
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Guilherme Tonon-da-Silva
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Thiago L Knittel
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Gabriel P Ruiz
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Raissa G Ludwig
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Katlin B Massirer
- Center for Molecular Biology and Genetic Engineering (CBMEG), Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Center of Medicinal Chemistry (CQMED), Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - William B Mair
- Department of Molecular Metabolism, Harvard T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Marcelo A Mori
- Department of Biochemistry and Tissue Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
- Program in Genetics and Molecular Biology, Institute of Biology, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
- Obesity and Comorbidities Research Center (OCRC), Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
- Experimental Medicine Research Cluster (EMRC), Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
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14
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Li R, Yi Q, Wang J, Miao Y, Chen Q, Xu Y, Tao M. Paeonol promotes longevity and fitness in Caenorhabditis elegans through activating the DAF-16/FOXO and SKN-1/Nrf2 transcription factors. Biomed Pharmacother 2024; 173:116368. [PMID: 38471269 DOI: 10.1016/j.biopha.2024.116368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/17/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Paeonol, as one of the most abundant plant-derived polyphenols, has multiple bioactivities including anti-inflammatory, anti-tumor, and anti-cardiovascular diseases. Nevertheless, the anti-aging effects and related mechanisms of paeonol are rarely reported. In this study, we found that paeonol significantly prolonged the mean lifespan of Caenorhabditis elegans (C. elegans) by 28.49% at a dose of 200 μM. Moreover, paeonol promoted the health of C. elegans by increasing the body bending and pharyngeal pumping rates and reducing the lipofuscin accumulation level. Meanwhile, paeonol induced the expression of stress-related genes or proteins by activating the transcription factors DAF-16/FOXO, SKN-1/Nrf2, and HSF-1, which in turn enhanced oxidative and thermal stress tolerance. The mechanism behind the anti-aging effect of paeonol occurred by down-regulating the insulin/IGF-1 signaling (IIS) pathway. Our findings shed new light on the application of paeonol for longevity promotion and human health.
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Affiliation(s)
- Rong Li
- College of Bioengineering/Hubei Engineering Research Center for Specialty Flowers Biological Breeding, Jingchu University of Technology, Jingmen, People's Republic of China
| | - Qingping Yi
- College of Bioengineering/Hubei Engineering Research Center for Specialty Flowers Biological Breeding, Jingchu University of Technology, Jingmen, People's Republic of China
| | - Jinsong Wang
- College of Bioengineering/Hubei Engineering Research Center for Specialty Flowers Biological Breeding, Jingchu University of Technology, Jingmen, People's Republic of China
| | - Yuanxin Miao
- College of Bioengineering/Hubei Engineering Research Center for Specialty Flowers Biological Breeding, Jingchu University of Technology, Jingmen, People's Republic of China
| | - Qingchan Chen
- College of Bioengineering/Hubei Engineering Research Center for Specialty Flowers Biological Breeding, Jingchu University of Technology, Jingmen, People's Republic of China
| | - Yan Xu
- College of Bioengineering/Hubei Engineering Research Center for Specialty Flowers Biological Breeding, Jingchu University of Technology, Jingmen, People's Republic of China.
| | - Mingfang Tao
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-products, Institute of Agricultural Quality Standards and Detection Technology, Hubei Academy of Agricultural Sciences, Wuhan, People's Republic of China.
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15
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Chuaijit S, Punsawad C, Winoto V, Plaingam W, Kongkaew I, Phetcharat A, Ichikawa T, Kubo M, Kawakami F, Tedasen A, Chatatikun M. Leaf extract of Garcinia atroviridis promotes anti-heat stress and antioxidant effects in Caenorhabditis elegans. Front Pharmacol 2024; 15:1331627. [PMID: 38515852 PMCID: PMC10955098 DOI: 10.3389/fphar.2024.1331627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/23/2024] [Indexed: 03/23/2024] Open
Abstract
Introduction: Garcinia atroviridis has been used for traditional medicines, healthy foods and tea. The chemical compositions and biological activities of fruit, stem bark and root have been widely studied. However, the phytochemical components and the biological activities in Garcinia atroviridis leaves (GAL) are limited. This research aims to study the phytochemical components and the stress resistance effects of GAL in Caenorhabditis elegans (C. elegans). Methods: To investigate the chemical components and antioxidant activities of GAL extract, the ethanol extract was characterized by liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-QTOF MS) analysis and C. elegans was used to evaluate the effects of GAL extracts on longevity and stress resistance. Results and discussion: The results revealed that the ethanol extract of GAL possesses free radical scavenging activities. Furthermore, GAL extract increased the lifespan of C. elegans by 6.02%, 15.26%, and 12.75% at concentrations of 25, 50, and 100 μg/mL, respectively. GAL extract exhibited improved stress resistance under conditions of heat and hydrogen peroxide-induced stress. The survival rates of GAL extract-treated worms were significantly higher than those of untreated worms, and GAL extract reduced reactive oxygen species (ROS) accumulation. Additionally, GAL extract treatment upregulated the expression of stress resistance-associated genes, including gst-4, sod-3, skn-1, and hsp16.2. GAL extract supplementation alleviated stress and enhanced longevity by inducing stress-related genes in C. elegans. The observed effects of GAL extracts may be attributed to the stimulation of oxidant enzymes mediated through DAF-16/FOXO and SKN-1/NRF2, as well as the enhancement of thermal defense in C. elegans. Collectively, this study provides the first evidence of the antioxidant activities of GAL and elucidates the underlying mechanisms of stress resistance.
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Affiliation(s)
- Sirithip Chuaijit
- Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, Thailand
- Center of Excellence Research for Melioidosis and Microorganisms (CERMM), Walailak University, Nakhon Si Thammarat, Thailand
| | - Chuchard Punsawad
- Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, Thailand
| | - Veronica Winoto
- Department of Chemical Engineering, Thammasat School of Engineering, Thammasat University Rangsit Campus, Rangsit, Pathum Thani, Thailand
| | - Waluga Plaingam
- College of Oriental Medicine, Rangsit University, Rangsit, Pathum Thani, Thailand
| | - Itti Kongkaew
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Atidtaya Phetcharat
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Takafumi Ichikawa
- Department of Regulation Biochemistry, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
- Regenerative Medicine and Cell Design Research Facility, School of Allied Health Sciences, Kitasato, Sagamihara, Japan
| | - Makoto Kubo
- Department of Regulation Biochemistry, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
- Regenerative Medicine and Cell Design Research Facility, School of Allied Health Sciences, Kitasato, Sagamihara, Japan
| | - Fumitaka Kawakami
- Department of Regulation Biochemistry, Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
- Regenerative Medicine and Cell Design Research Facility, School of Allied Health Sciences, Kitasato, Sagamihara, Japan
| | - Aman Tedasen
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Moragot Chatatikun
- Center of Excellence Research for Melioidosis and Microorganisms (CERMM), Walailak University, Nakhon Si Thammarat, Thailand
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
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16
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Turner CD, Ramos CM, Curran SP. Disrupting the SKN-1 homeostat: mechanistic insights and phenotypic outcomes. FRONTIERS IN AGING 2024; 5:1369740. [PMID: 38501033 PMCID: PMC10944932 DOI: 10.3389/fragi.2024.1369740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 02/15/2024] [Indexed: 03/20/2024]
Abstract
The mechanisms that govern maintenance of cellular homeostasis are crucial to the lifespan and healthspan of all living systems. As an organism ages, there is a gradual decline in cellular homeostasis that leads to senescence and death. As an organism lives into advanced age, the cells within will attempt to abate age-related decline by enhancing the activity of cellular stress pathways. The regulation of cellular stress responses by transcription factors SKN-1/Nrf2 is a well characterized pathway in which cellular stress, particularly xenobiotic stress, is abated by SKN-1/Nrf2-mediated transcriptional activation of the Phase II detoxification pathway. However, SKN-1/Nrf2 also regulates a multitude of other processes including development, pathogenic stress responses, proteostasis, and lipid metabolism. While this process is typically tightly regulated, constitutive activation of SKN-1/Nrf2 is detrimental to organismal health, this raises interesting questions surrounding the tradeoff between SKN-1/Nrf2 cryoprotection and cellular health and the ability of cells to deactivate stress response pathways post stress. Recent work has determined that transcriptional programs of SKN-1 can be redirected or suppressed to abate negative health outcomes of constitutive activation. Here we will detail the mechanisms by which SKN-1 is controlled, which are important for our understanding of SKN-1/Nrf2 cytoprotection across the lifespan.
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Affiliation(s)
- Chris D. Turner
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, United States
| | - Carmen M. Ramos
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, United States
- Dornsife College of Letters, Arts, and Sciences, Department of Molecular and Computational Biology, University of Southern California, Los Angeles, CA, United States
| | - Sean P. Curran
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, United States
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17
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Grover M, Gang SS, Troemel ER, Barkoulas M. Proteasome inhibition triggers tissue-specific immune responses against different pathogens in C. elegans. PLoS Biol 2024; 22:e3002543. [PMID: 38466732 PMCID: PMC10957088 DOI: 10.1371/journal.pbio.3002543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 03/21/2024] [Accepted: 02/09/2024] [Indexed: 03/13/2024] Open
Abstract
Protein quality control pathways play important roles in resistance against pathogen infection. For example, the conserved transcription factor SKN-1/NRF up-regulates proteostasis capacity after blockade of the proteasome and also promotes resistance against bacterial infection in the nematode Caenorhabditis elegans. SKN-1/NRF has 3 isoforms, and the SKN-1A/NRF1 isoform, in particular, regulates proteasomal gene expression upon proteasome dysfunction as part of a conserved bounce-back response. We report here that, in contrast to the previously reported role of SKN-1 in promoting resistance against bacterial infection, loss-of-function mutants in skn-1a and its activating enzymes ddi-1 and png-1 show constitutive expression of immune response programs against natural eukaryotic pathogens of C. elegans. These programs are the oomycete recognition response (ORR), which promotes resistance against oomycetes that infect through the epidermis, and the intracellular pathogen response (IPR), which promotes resistance against intestine-infecting microsporidia. Consequently, skn-1a mutants show increased resistance to both oomycete and microsporidia infections. We also report that almost all ORR/IPR genes induced in common between these programs are regulated by the proteasome and interestingly, specific ORR/IPR genes can be induced in distinct tissues depending on the exact trigger. Furthermore, we show that increasing proteasome function significantly reduces oomycete-mediated induction of multiple ORR markers. Altogether, our findings demonstrate that proteasome regulation keeps innate immune responses in check in a tissue-specific manner against natural eukaryotic pathogens of the C. elegans epidermis and intestine.
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Affiliation(s)
- Manish Grover
- Department of Life Sciences, Imperial College, London, United Kingdom
| | - Spencer S. Gang
- School of Biological Sciences, University of California, San Diego, La Jolla, California, United States of America
| | - Emily R. Troemel
- School of Biological Sciences, University of California, San Diego, La Jolla, California, United States of America
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18
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Sirakawin C, Lin D, Zhou Z, Wang X, Kelleher R, Huang S, Long W, Pires‐daSilva A, Liu Y, Wang J, Vinnikov IA. SKN-1/NRF2 upregulation by vitamin A is conserved from nematodes to mammals and is critical for lifespan extension in Caenorhabditis elegans. Aging Cell 2024; 23:e14064. [PMID: 38100161 PMCID: PMC10928581 DOI: 10.1111/acel.14064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/27/2023] [Accepted: 11/27/2023] [Indexed: 03/13/2024] Open
Abstract
Vitamin A (VA) is a micronutrient essential for the physiology of many organisms, but its role in longevity and age-related diseases remains unclear. In this work, we used Caenorhabditis elegans to study the impact of various bioactive compounds on lifespan. We demonstrate that VA extends lifespan and reduces lipofuscin and fat accumulation while increasing resistance to heat and oxidative stress. This resistance can be attributed to high levels of detoxifying enzymes called glutathione S-transferases, induced by the transcription factor skinhead-1 (SKN-1). Notably, VA upregulated the transcript levels of skn-1 or its mammalian ortholog NRF2 in both C. elegans, human cells, and liver tissues of mice. Moreover, the loss-of-function genetic models demonstrated a critical involvement of the SKN-1 pathway in longevity extension by VA. Our study thus provides novel insights into the molecular mechanism of anti-aging and anti-oxidative effects of VA, suggesting that this micronutrient could be used for the prevention and/or treatment of age-related disorders.
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Affiliation(s)
- Chaweewan Sirakawin
- Laboratory of Molecular Neurobiology, Sheng Yushou Center of Cell Biology and Immunology, Department of Genetics and Developmental Biology, School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghaiChina
| | - Dongfa Lin
- Laboratory of Molecular Neurobiology, Sheng Yushou Center of Cell Biology and Immunology, Department of Genetics and Developmental Biology, School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghaiChina
- Key Laboratory for Molecular Enzymology and Engineering, School of Life SciencesJilin UniversityChangchunChina
| | - Ziyue Zhou
- Laboratory of Molecular Neurobiology, Sheng Yushou Center of Cell Biology and Immunology, Department of Genetics and Developmental Biology, School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghaiChina
| | - Xiaoxin Wang
- Shanghai Key Laboratory of Pancreatic Diseases, Institute of Translational Medicine, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | | | - Shangyuan Huang
- Laboratory of Molecular Neurobiology, Sheng Yushou Center of Cell Biology and Immunology, Department of Genetics and Developmental Biology, School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghaiChina
| | - Weimiao Long
- Laboratory of Molecular Neurobiology, Sheng Yushou Center of Cell Biology and Immunology, Department of Genetics and Developmental Biology, School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghaiChina
| | | | - Yu Liu
- Laboratory of Molecular Neurobiology, Sheng Yushou Center of Cell Biology and Immunology, Department of Genetics and Developmental Biology, School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghaiChina
| | - Jingjing Wang
- Shanghai Key Laboratory of Pancreatic Diseases, Institute of Translational Medicine, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Ilya A. Vinnikov
- Laboratory of Molecular Neurobiology, Sheng Yushou Center of Cell Biology and Immunology, Department of Genetics and Developmental Biology, School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghaiChina
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19
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Nair T, Weathers BA, Stuhr NL, Nhan JD, Curran SP. Serotonin deficiency from constitutive SKN-1 activation drives pathogen apathy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.10.579755. [PMID: 38405962 PMCID: PMC10888766 DOI: 10.1101/2024.02.10.579755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
When an organism encounters a pathogen, the host innate immune system activates to defend against pathogen colonization and toxic xenobiotics produced. C. elegans employ multiple defense systems to ensure survival when exposed to Pseudomonas aeruginosa including activation of the cytoprotective transcription factor SKN-1/NRF2. Although wildtype C. elegans quickly learn to avoid pathogens, here we describe a peculiar apathy-like behavior towards PA14 in animals with constitutive activation of SKN-1, whereby animals choose not to leave and continue to feed on the pathogen even when a non-pathogenic and healthspan-promoting food option is available. Although lacking the urgency to escape the infectious environment, animals with constitutive SKN-1 activity are not oblivious to the presence of the pathogen and display the typical pathogen-induced intestinal distension and eventual demise. SKN-1 activation, specifically in neurons and intestinal tissues, orchestrates a unique transcriptional program which leads to defects in serotonin signaling that is required from both neurons and non-neuronal tissues. Serotonin depletion from SKN-1 activation limits pathogen defense capacity, drives the pathogen-associated apathy behaviors and induces a synthetic sensitivity to selective serotonin reuptake inhibitors. Taken together, our work reveals new insights into how animals perceive environmental pathogens and subsequently alter behavior and cellular programs to promote survival. KEY POINTS Identify an apathy-like behavioral response for pathogens resulting from the constitutive activation of the cytoprotective transcription factor SKN-1.Uncover the obligate role for serotonin synthesis in both neuronal and non-neuronal cells for the apathy-like state and ability of serotonin treatment to restore normal behaviors.Characterize the timing and tissue specificity of SKN-1 nuclear localization in neurons and intestinal cells in response to pathogen exposure.Define the unique and context-specific transcriptional signatures of animals with constitutive SKN-1 activation when exposed to pathogenic environments.Reveal necessity for both neuronal and non-neuronal serotonin signaling in host survival from pathogen infection.
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20
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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.
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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
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21
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Xu Y, Yang J, Liu J, Tang Y, Li X, Ye D, He J, Tang H, Zhang Y. Effects of synergistic Fenton-microwave treatment on the antioxidant stress of soluble polysaccharides and the physicochemical properties of insoluble polysaccharides from Gelidium amansii. Int J Biol Macromol 2024; 254:128366. [PMID: 37995786 DOI: 10.1016/j.ijbiomac.2023.128366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/14/2023] [Accepted: 11/21/2023] [Indexed: 11/25/2023]
Abstract
In this study, we individually obtained crude Gelidium amansii water-soluble polysaccharides and water-insoluble polysaccharides (GAIPs) using an improved Fenton-microwave synergistic treatment. The former were purified by alcohol precipitation and deproteinization to obtain Gelidium amansii water-soluble polysaccharides (GASPs), and their effects on the oxidative stress resistance of Caenorhabditis elegans were investigated. GAIPs were studied for their physicochemical properties, including hydration characteristics, adsorption, and cation-exchange capacity. The results showed that compared with the negative control, 1.0 mg/mL GASPs significantly upregulated (>1.70-fold) the expression of antioxidant-related genes, such as daf-16, sir-2.1, and skn-1 (p < 0.05), which prolonged the mean survival time and increased the mean number of head bobbing (p < 0.05). The hydration characteristics and oil-holding capacity of GAIPs were lower than those of G. amansii powder (GAP) and G. amansii filtrate residue (GADP). However, the adsorption capacity of GAIPs for cholesterol (pH 7.0) and sodium cholate and the cation-exchange capacity were significantly better than those of GAP (5.17, 13.16 & 1.63 times, p < 0.05) and GADP (8.42, 6.39, & 2.05 times, p < 0.05). To conclude, the synergistic Fenton-microwave treatment contributed to the increase in the oxidative stress resistance of GASPs and improved the adsorption capacity and cation-exchange capacity of GAIPs.
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Affiliation(s)
- Yuting Xu
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, PR China
| | - Jun Yang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, PR China
| | - Jiaqi Liu
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, PR China
| | - Yuxuan Tang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, PR China
| | - Xiangyu Li
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, PR China
| | - Deting Ye
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, PR China
| | - Jiyuan He
- Liang Xin College, China Jiliang University, Hangzhou, Zhejiang Province 310018, PR China
| | - Huinan Tang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, PR China
| | - Yongjun Zhang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, PR China.
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22
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Yao J, Zeng J, Tang H, Shi Q, Li X, Tan J, Cheng Y, Li T, He J, Zhang Y. Preparation of Auricularia auricula polysaccharides and their protective effect on acute oxidative stress injury of Caenorhabditis elegans. Int J Biol Macromol 2023; 253:127427. [PMID: 37838122 DOI: 10.1016/j.ijbiomac.2023.127427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 09/30/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023]
Abstract
This research enhanced the extraction procedure for Auricularia auricula crude polysaccharides by utilizing a modified Fenton reagent as a solvent, and obtained A. auricula polysaccharides (AAPs-VH) via alcohol precipitation and deproteinization. The HPLC profile revealed that the purified AAPs-VH using Sepharose 6FF was mainly a heteropolysaccharide, consisting primarily of mannose, glucuronic acid, glucose, and xylose. The Mw and Mn of the purified AAPs-VH were 87.646 kDa and 48.854 kDa, respectively. The FT-IR and NMR spectra revealed that the purified AAPs-VH belonged to pyranose and were mainly formed by (1 → 3)-linked-β-D glucan formation. In vivo experiments conducted with Caenorhabditis elegans, AAPs-VH was found to notably influence the lifespan, improve the antioxidant system, and decrease the level of cell apoptosis. This might be achieved by up-regulating the expression of genes in the IIS and TOR pathways. The study concludes that the modified Fenton reagent can increase Auricularia auricula polysaccharide solubleness and active sites, which may be an essential prompt for future studies.
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Affiliation(s)
- Jing Yao
- Liang Xin College, China Jiliang University, Hangzhou, Zhejiang Province 310018, China
| | - Jiangying Zeng
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, China
| | - Huinan Tang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, China
| | - Qianwen Shi
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, China
| | - Xiangyu Li
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, China
| | - Jingjing Tan
- Liang Xin College, China Jiliang University, Hangzhou, Zhejiang Province 310018, China
| | - Yirui Cheng
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, China
| | - Tianyuan Li
- Liang Xin College, China Jiliang University, Hangzhou, Zhejiang Province 310018, China
| | - Jiyuan He
- Liang Xin College, China Jiliang University, Hangzhou, Zhejiang Province 310018, China
| | - Yongjun Zhang
- College of Life Sciences, Key Laboratory of Specialty Agri-product Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, Zhejiang Province 310018, China.
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23
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Turner CD, Stuhr NL, Ramos CM, Van Camp BT, Curran SP. A dicer-related helicase opposes the age-related pathology from SKN-1 activation in ASI neurons. Proc Natl Acad Sci U S A 2023; 120:e2308565120. [PMID: 38113255 PMCID: PMC10756303 DOI: 10.1073/pnas.2308565120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 11/02/2023] [Indexed: 12/21/2023] Open
Abstract
Coordination of cellular responses to stress is essential for health across the lifespan. The transcription factor SKN-1 is an essential homeostat that mediates survival in stress-inducing environments and cellular dysfunction, but constitutive activation of SKN-1 drives premature aging thus revealing the importance of turning off cytoprotective pathways. Here, we identify how SKN-1 activation in two ciliated ASI neurons in Caenorhabditis elegans results in an increase in organismal transcriptional capacity that drives pleiotropic outcomes in peripheral tissues. An increase in the expression of established SKN-1 stress response and lipid metabolism gene classes of RNA in the ASI neurons, in addition to the increased expression of several classes of noncoding RNA, define a molecular signature of animals with constitutive SKN-1 activation and diminished healthspan. We reveal neddylation as a unique regulator of the SKN-1 homeostat that mediates SKN-1 abundance within intestinal cells. Moreover, RNAi-independent activity of the dicer-related DExD/H-box helicase, drh-1, in the intestine, can oppose the effects of aberrant SKN-1 transcriptional activation and delays age-dependent decline in health. Taken together, our results uncover a cell nonautonomous circuit to maintain organism-level homeostasis in response to excessive SKN-1 transcriptional activity in the sensory nervous system.
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Affiliation(s)
- Chris D. Turner
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA90089
- Molecular and Computational Biology, University of Southern California, Los Angeles, CA90089
| | - Nicole L. Stuhr
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA90089
- Molecular and Computational Biology, University of Southern California, Los Angeles, CA90089
| | - Carmen M. Ramos
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA90089
- Molecular and Computational Biology, University of Southern California, Los Angeles, CA90089
| | - Bennett T. Van Camp
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA90089
| | - Sean P. Curran
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA90089
- Molecular and Computational Biology, University of Southern California, Los Angeles, CA90089
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24
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Kirchweger B, Zwirchmayr J, Grienke U, Rollinger JM. The role of Caenorhabditis elegans in the discovery of natural products for healthy aging. Nat Prod Rep 2023; 40:1849-1873. [PMID: 37585263 DOI: 10.1039/d3np00021d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Covering: 2012 to 2023The human population is aging. Thus, the greatest risk factor for numerous diseases, such as diabetes, cancer and neurodegenerative disorders, is increasing worldwide. Age-related diseases do not typically occur in isolation, but as a result of multi-factorial causes, which in turn require holistic approaches to identify and decipher the mode of action of potential remedies. With the advent of C. elegans as the primary model organism for aging, researchers now have a powerful in vivo tool for identifying and studying agents that effect lifespan and health span. Natural products have been focal research subjects in this respect. This review article covers key developments of the last decade (2012-2023) that have led to the discovery of natural products with healthy aging properties in C. elegans. We (i) discuss the state of knowledge on the effects of natural products on worm aging including methods, assays and involved pathways; (ii) analyze the literature on natural compounds in terms of their molecular properties and the translatability of effects on mammals; (iii) examine the literature on multi-component mixtures with special attention to the studied organisms, extraction methods and efforts regarding the characterization of their chemical composition and their bioactive components. (iv) We further propose to combine small in vivo model organisms such as C. elegans and sophisticated analytical approaches ("wormomics") to guide the way to dissect complex natural products with anti-aging properties.
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Affiliation(s)
- Benjamin Kirchweger
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
| | - Julia Zwirchmayr
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
| | - Ulrike Grienke
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
| | - Judith M Rollinger
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
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25
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Huynh D, Wu CW. Identification of pararosaniline as a modifier of RNA splicing in Caenorhabditis elegans. G3 (BETHESDA, MD.) 2023; 13:jkad241. [PMID: 37852248 PMCID: PMC10700105 DOI: 10.1093/g3journal/jkad241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 09/13/2023] [Accepted: 10/11/2023] [Indexed: 10/20/2023]
Abstract
Posttranscriptional splicing of premessenger RNA (mRNA) is an evolutionarily conserved eukaryotic process for producing mature mRNA that is translated into proteins. Accurate splicing is necessary for normal growth and development, and aberrant splicing is increasingly evident in various human pathologies. To study environmental factors that influence RNA splicing, we employed a fluorescent Caenorhabditis elegans in vivo splicing reporter as a biomarker for splicing fidelity to screen against the US EPA ToxCast chemical library. We identified pararosaniline hydrochloride as a strong modifier of RNA splicing. Through gene expression analysis, we found that pararosaniline activates the oxidative stress response and alters the expression of key RNA splicing regulator genes. Physiological assays show that pararosaniline is deleterious to C. elegans development, reproduction, and aging. Through a targeted RNAi screen, we found that inhibiting protein translation can reverse pararosaniline's effect on the splicing reporter and provide significant protection against long-term pararosaniline toxicity. Together, this study reveals a new chemical modifier of RNA splicing and describes translation inhibition as a genetic mechanism to provide resistance.
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Affiliation(s)
- Dylan Huynh
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
| | - Cheng-Wei Wu
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada
- Department of Biochemistry, Microbiology and Immunology, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
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26
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Ramos CM, Curran SP. Comparative analysis of the molecular and physiological consequences of constitutive SKN-1 activation. GeroScience 2023; 45:3359-3370. [PMID: 37751046 PMCID: PMC10643742 DOI: 10.1007/s11357-023-00937-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 09/04/2023] [Indexed: 09/27/2023] Open
Abstract
Molecular homeostats play essential roles across all levels of biological organization to ensure a return to normal function after responding to abnormal internal and environmental events. SKN-1 is an evolutionarily conserved cytoprotective transcription factor that is integral for the maintenance of cellular homeostasis upon exposure to a variety of stress conditions. Despite the essentiality of turning on SKN-1/NRF2 in response to exogenous and endogenous stress, animals with chronic activation of SKN-1 display premature loss of health with age, and ultimately, diminished lifespan. Previous genetic models of constitutive SKN-1 activation include gain-of-function alleles of skn-1 and loss-of-function alleles of wdr-23 that impede the turnover of SKN-1 by the ubiquitin proteasome. Here, we define a novel gain-of-function mutation in the xrep-4 locus that results in constitutive activation of SKN-1 in the absence of stress. Although each of these genetic mutations results in continuously unregulated transcriptional output from SKN-1, the physiological consequences of each model on development, stress resistance, reproduction, lipid homeostasis, and lifespan are distinct. Here, we provide a comprehensive assessment of the differential healthspan impacts across multiple models of constitutive SKN-1 activation. Although our results reveal the universal need to reign in the uncontrolled activity of cytoprotective transcription factors, we also define the unique signatures of each model of constitutive SKN-1 activation, which provides innovative solutions for the design of molecular "off-switches" of unregulated transcriptional homeostats.
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Affiliation(s)
- Carmen M Ramos
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, 90089, USA
- Dornsife College of Letters, Arts, and Sciences, Department of Molecular and Computational Biology, University of Southern California, Los Angeles, CA, 90089, USA
| | - Sean P Curran
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, 90089, USA.
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Johnstone JN, Mirth CK, Johnson TK, Schittenhelm RB, Piper MDW. GCN2 mediates access to stored amino acids for somatic maintenance during Drosophila ageing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.14.566972. [PMID: 38014136 PMCID: PMC10680771 DOI: 10.1101/2023.11.14.566972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Many mechanistic theories of ageing argue that a progressive failure of somatic maintenance, the use of energy and resources to prevent and repair damage to the cell, underpins ageing. To sustain somatic maintenance an organism must acquire dozens of essential nutrients from the diet, including essential amino acids (EAAs), which are physiologically limiting for many animals. In Drosophila , adulthood deprivation of each individual EAA yields vastly different lifespan trajectories, and adulthood deprivation of one EAA, phenylalanine (Phe), has no associated lifespan cost; this is despite each EAA being strictly required for growth and reproduction. Moreover, survival under any EAA deprivation depends entirely on the conserved AA sensor GCN2, a component of the integrated stress response (ISR), suggesting that a novel ISR-mediated mechanism sustains lifelong somatic maintenance during EAA deprivation. Here we investigated this mechanism, finding that flies chronically deprived of dietary Phe continue to incorporate Phe into new proteins, and that challenging flies to increase the somatic requirement for Phe shortens lifespan under Phe deprivation. Further, we show that autophagy is required for full lifespan under Phe deprivation, and that activation of the ISR can partially rescue the shortened lifespan of GCN2 -nulls under Phe deprivation. We therefore propose a mechanism by which GCN2, via the ISR, activates autophagy during EAA deprivation, breaking down a larvally-acquired store of EAAs to support somatic maintenance. These data refine our understanding of the strategies by which flies sustain lifelong somatic maintenance, which determines length of life in response to changes in the nutritional environment.
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Xu Q, Zheng B, Li T, Liu RH. Hypsizygus marmoreus extract exhibited antioxidant effects to promote longevity and stress resistance in Caenorhabditis elegans. Food Funct 2023; 14:9743-9754. [PMID: 37818984 DOI: 10.1039/d3fo02578k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
In this study, we explored the lifespan extension effect of a popular edible mushroom, Hypsizygus marmoreus, using the model organism Caenorhabditis elegans (C. elegans). The results showed that Hypsizygus marmoreus extract (HME) could increase the lifespan of C. elegans and ameliorate the healthspan by improving motility, attenuating lipofuscin accumulation, and enhancing the ability to withstand oxidative and heat stress. Then, we found noteworthy enhancements in SOD and CAT activities and reactive oxygen species (ROS) scavenging activity in vivo. Combined with the up-regulation of the expression of antioxidant genes (skn-1, sod-1, sod-3, mev-1, and gst-4), HME may function as an antioxidant in nematodes, which may be closely related to its phenolic compounds. Furthermore, we found that HME promoted the transfer of the transcription factor SKN-1 to the nucleus but had no impact on the lifespan of skn-1 mutants, indicating that SKN-1 was essential for Hypsizygus marmoreus to exert beneficial biological effects in C. elegans. Our findings elucidated that dietary supplementation with Hypsizygus marmoreus might have beneficial anti-aging effects and contribute to exploring the lifespan extension and underlying mechanisms of Hypsizygus marmoreus in C. elegans.
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Affiliation(s)
- Qiuxiong Xu
- Research Institute for Food Nutrition and Human Health, Guangzhou, China
- School of Food Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Bisheng Zheng
- Research Institute for Food Nutrition and Human Health, Guangzhou, China
- School of Food Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- Guangdong ERA Food & Life Health Research Institute, Guangzhou, 510670, China
| | - Tong Li
- Department of Food Science, Stocking Hall, Cornell University, Ithaca, NY 14853, USA.
| | - Rui Hai Liu
- Department of Food Science, Stocking Hall, Cornell University, Ithaca, NY 14853, USA.
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Liu H, Liu B, Zhang S, Fan M, Ji X, Zhang S, Wang Z, Qiao K. Lentinan protects Caenorhabditis elegans against fluopyram-induced toxicity through DAF-16 and SKN-1 pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 265:115510. [PMID: 37742572 DOI: 10.1016/j.ecoenv.2023.115510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/17/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Abstract
Fluopyram, a SDH inhibitor fungicide, is widely used in agriculture to control fungi and nematodes. However, fluopyram has been proved toxic that caused damage to organs through oxidative stress. The development of natural extracts that can reduce oxidative damage is a promising method. Lentinan is isolated from Lentinus edodes and has been verified its antioxidant activity. In this study, Caenorhabditis elegans was used to evaluate the protective effects of lentinan against fluopyram-induced toxicity and the possible mechanisms. Results showed that lentinan pretreatment notably increased the survival rate of N2 nematodes by 15.0 % and extended the lifespan by 91.5 %, compared with the fluopyram treatment. Lentinan pretreatment reverted the inhibition of the locomotion and reproduction of C. elegans under the fluopyram stress. In addition, lentinan pretreatment significantly decreased the contents of ROS and MDA in N2 nematodes. Moreover, pretreated with lentinan significantly recovered the decreased activities of CAT, SOD, GST and SDH induced by fluopyram. Lentinan pretreatment enhanced the mRNA levels of daf-16 and skn-1 and their downstream genes in the nematodes compared with the fluopyram group. In daf-16 and skn-1 mutants, the lifespan, ROS and related genes expression were not significantly changed in lentinan pretreatment. Pretreated with lentinan significantly enhanced the fluorescence intensity of SOD-3::GFP and GST-4::GFP, and promoted the nuclear translocation of DAF-16 and SKN-1 under the fluopyram stress. In summary, these findings indicated that lentinan protected C. elegans from fluopyram-induced toxicity via DAF-16 and SKN-1.
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Affiliation(s)
- Huimin Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Bingjie Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Siqi Zhang
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Miao Fan
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Xiaoxue Ji
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Shouan Zhang
- Tropical Research and Education Center, Department of Plant Pathology, University of Florida, IFAS, Homestead, FL 33031, USA
| | - Zhongtang Wang
- Shandong Institute of Pomology, Tai'an, Shandong 271000, China.
| | - Kang Qiao
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China.
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Turner CD, Stuhr NL, Ramos CM, Van Camp BT, Curran SP. A dicer-related helicase opposes the age-related pathology from SKN-1 activation in ASI neurons. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.01.560409. [PMID: 37873147 PMCID: PMC10592859 DOI: 10.1101/2023.10.01.560409] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Coordination of cellular responses to stress are essential for health across the lifespan. The transcription factor SKN-1 is an essential homeostat that mediates survival in stress-inducing environments and cellular dysfunction, but constitutive activation of SKN-1 drives premature aging thus revealing the importance of turning off cytoprotective pathways. Here we identify how SKN-1 activation in two ciliated ASI neurons in C. elegans results in an increase in organismal transcriptional capacity that drives pleiotropic outcomes in peripheral tissues. An increase in the expression of established SKN-1 stress response and lipid metabolism gene classes of RNA in the ASI neurons, in addition to the increased expression of several classes of non-coding RNA, define a molecular signature of animals with constitutive SKN-1 activation and diminished healthspan. We reveal neddylation as a novel regulator of the SKN-1 homeostat that mediates SKN-1 abundance within intestinal cells. Moreover, RNAi-independent activity of the dicer-related DExD/H-box helicase, drh-1 , in the intestine, can oppose the e2ffects of aberrant SKN-1 transcriptional activation and delays age-dependent decline in health. Taken together, our results uncover a cell non-autonomous circuit to maintain organism-level homeostasis in response to excessive SKN-1 transcriptional activity in the sensory nervous system. SIGNIFICANCE STATEMENT Unlike activation, an understudied fundamental question across biological systems is how to deactivate a pathway, process, or enzyme after it has been turned on. The irony that the activation of a transcription factor that is meant to be protective can diminish health was first documented by us at the organismal level over a decade ago, but it has long been appreciated that chronic activation of the human ortholog of SKN-1, NRF2, could lead to chemo- and radiation resistance in cancer cells. A colloquial analogy to this biological idea is a sink faucet that has an on valve without a mechanism to shut the water off, which will cause the sink to overflow. Here, we define this off valve.
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Bai X, Liu CM, Li HJ, Zhang ZP, Cui WB, An FL, Zhang ZX, Wang DS, Fei DQ. Ethyl caffeate attefnuates Aβ-induced toxicity in Caenorhabditis elegans AD models via the insulin/insulin-like growth factor-1 signaling pathway. Bioorg Chem 2023; 139:106714. [PMID: 37454496 DOI: 10.1016/j.bioorg.2023.106714] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/21/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023]
Abstract
The pathogenesis of Alzheimer's disease (AD), a multifactorial progressive neurodegenerative disease associated with aging, is unclear. Ethyl caffeate is a plant polyphenol that has been reported to have neuroprotective effects, but the mechanisms by which it acts are unclear. In this study, for the first time, we investigated the molecular mechanism of its anti-AD properties using the Caernorhabditis elegans model. The results of our experiments showed that ethyl caffeate delayed the paralysis symptoms of CL4176 to a different extent and reduced the exogenous 5-hydroxytryptophan-induced paralysis phenotype. Further studies revealed that ethyl caffeate lowered Aβ plaques and depressed the expression of Aβ monomers and oligomers, but did not influence the mRNA levels of Aβ. Moreover, it was able to bring paraquat-induced ROS levels down to near-standard conditions. Real-time quantitative PCR experiment showed a significant upregulation of the transcript abundance of daf-16, skn-1 and hsf-1, key factors associated with the insulin/insulin-like growth factor 1 (IGF-1) signaling pathway (IIS), and their downstream genes sod-3, gst-4 and hsp-16.2. It was further shown that ethyl caffeate activated the translocation of DAF-16 and SKN-1 from the cytoplasm to the nucleus and enhanced the expression of sod-3::GFP, gst-4::GFP and hsp-16.2::GFP in transgenic nematodes. This meant that the protection against Aβ toxicity by ethyl caffeate may be partly through the IIS signaling pathway. In addition, ethyl caffeate suppressed the aggregation of polyglutamine proteins in AM141, which indicated a potential protective effect against neurodegenerative diseases based on abnormal folding and aggregation of amyloid proteins. Taken together, ethyl caffeate is expected to develop as a potential drug for the management of AD.
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Affiliation(s)
- Xue Bai
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Chun-Min Liu
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Hui-Jie Li
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Zong-Ping Zhang
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Wen-Bo Cui
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Feng-Li An
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Zhan-Xin Zhang
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
| | - Dong-Sheng Wang
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
| | - Dong-Qing Fei
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
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Stover MA, Tinoco-Bravo B, Shults CA, Marouk S, Deole R, Manjarrez JR. Probiotic effects of Lactococcus lactis and Leuconostoc mesenteroides on stress and longevity in Caenorhabditis elegans. Front Physiol 2023; 14:1207705. [PMID: 37772058 PMCID: PMC10522913 DOI: 10.3389/fphys.2023.1207705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/23/2023] [Indexed: 09/30/2023] Open
Abstract
The short lifespan of Caenorhabditis elegans enables the efficient investigation of probiotic interventions affecting stress and longevity involving the potential therapeutic value of Lactococcus lactis and Leuconostoc mesenteroides isolated from organic basil. The lactic acid bacteria were cultured from the produce collected from a local grocery store in Tulsa, Oklahoma, and then identified through 16S rDNA sequencing and biochemical tests. To dive deep into this analysis for potential probiotic therapy, we used fluorescent reporters that allow us to assess the differential induction of multiple stress pathways such as oxidative stress and the cytoplasmic, endoplasmic reticulum, and the mitochondrial unfolded protein response. This is combined with the classic health span measurements of survival, development, and fecundity, allowing a wide range of organismal observations of the different communities of microbes supported by probiotic supplementation with Lactococcus lactis and Leuconostoc mesenteroides. These strains were initially assessed in relation to the Escherichia coli feeding strain OP50 and the C. elegans microbiome. The supplementation showed a reduction in the median lifespan of the worms colonized within the microbiome. This was unsurprising, as negative results are common when probiotics are introduced into healthy microbiomes. To further assess the supplementation potential of these strains on an unhealthy (undifferentiated) microbiome, the typical axenic C. elegans diet, OP50, was used to simulate this single-species biome. The addition of lactic acid bacteria to OP50 led to a significant improvement in the median and overall survival in simulated biomes, indicating their potential in probiotic therapy. The study analyzed the supplemented cultures in terms of C. elegans' morphology, locomotor behavior, reproduction, and stress responses, revealing unique characteristics and stress response patterns for each group. As the microbiome's influence on the health span gains interest, the study aims to understand the microbiome relationships that result in differential stress resistance and lifespans by supplementing microbiomes with Lactococcus lactis and Leuconostoc mesenteroides isolated from organic basil in C. elegans.
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Affiliation(s)
| | | | | | | | | | - Jacob R. Manjarrez
- Biochemistry and Microbiology Department, Oklahoma State University Center for Health Sciences, Tulsa, OK, United States
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Wang S, Lin D, Cao J, Wang L. APPA Increases Lifespan and Stress Resistance via Lipid Metabolism and Insulin/IGF-1 Signal Pathway in Caenorhabditis elegans. Int J Mol Sci 2023; 24:13682. [PMID: 37761985 PMCID: PMC10531162 DOI: 10.3390/ijms241813682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/31/2023] [Accepted: 09/02/2023] [Indexed: 09/29/2023] Open
Abstract
Animal studies have proven that 1-acetyl-5-phenyl-1H-pyrrol-3-yl acetate (APPA) is a powerful antioxidant as a novel aldose reductase inhibitor independently synthesized by our laboratory; however, there is no current information on APPA's anti-aging mechanism. Therefore, this study examined the impact and mechanism of APPA's anti-aging and anti-oxidation capacity using the Caenorhabditis elegans model. The results demonstrated that APPA increases C. elegans' longevity without affecting the typical metabolism of Escherichia coli OP50 (OP50). APPA also had a non-toxic effect on C. elegans, increased locomotor ability, decreased the levels of reactive oxygen species, lipofuscin, and fat, and increased anti-stress capacity. QRT-PCR analysis further revealed that APPA upregulated the expression of antioxidant genes, including sod-3, gst-4, and hsp-16.2, and the critical downstream transcription factors, daf-16, skn-1, and hsf-1 of the insulin/insulin-like growth factor (IGF) receptor, daf-2. In addition, fat-6 and nhr-80 were upregulated. However, the APPA's life-prolonging effects were absent on the daf-2, daf-16, skn-1, and hsf-1 mutants implying that the APPA's life-prolonging mechanism depends on the insulin/IGF-1 signaling system. The transcriptome sequencing also revealed that the mitochondrial route was also strongly associated with the APPA life extension, consistent with mev-1 and isp-1 mutant life assays. These findings aid in the investigation of APPA's longevity extension mechanism.
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Affiliation(s)
| | | | | | - Liping Wang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China; (S.W.); (D.L.); (J.C.)
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Tao M, Li R, Xu T, Zhang Z, Zheng D, Xia Z, Wu T, Pan S, Xu X. Vitexin and isovitexin delayed ageing and enhanced stress-resistance through the activation of the SKN-1/Nrf2 signaling pathway. Int J Food Sci Nutr 2023; 74:685-694. [PMID: 37604809 DOI: 10.1080/09637486.2023.2243055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 08/23/2023]
Abstract
Vitexin and isovitexin, as potential SKN-1/Nrf2 (SKN-1 is a homologous protein of mammalian Nrf2) activators, extended lifespan and promoted healthspan in Caenorhabditis elegans. This study aims to elucidate the role of SKN-1/Nrf2 in vitexin and isovitexin-induced anti-aging and stress-resistance. Vitexin and isovitexin upregulated antioxidant gene and protein expressions, reduced ROS accumulation, and increased SKN-1 accumulation in the nucleus. They prolonged lifespan and clear ROS during stressful conditions in a skn-1-dependent manner. skn-1 was also found to be necessary for these compounds-induced longevity under normal conditions. They were also witnessed to retard cellular senescence and scavenge ROS in senescent cells by directly binding to the pocket of Keap1 to promote the dissociation and activation of Nrf2. This study showed that SKN-1/Nrf2 signaling was vital to delaying ageing and enhancing anti-stress capacity with vitexin and isovitexin. The findings provide new insights into apigenin C-glycosides activating the SKN-1/Nrf2 pathway and demonstrate their potential as candidates for innovative strategies in chemoprophylaxis against ageing and oxidative-related diseases.
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Affiliation(s)
- Mingfang Tao
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Institute of Agricultural Quality Standards and Detection Technology, Hubei Academy of Agricultural Sciences, Wuhan, PR China
| | - Rong Li
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
- Research Institute of Agricultural Biotechnology, Jingchu University of Technology, Jingmen, PR China
| | - Tingting Xu
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
| | - Zhuo Zhang
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
| | - Dan Zheng
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Institute of Agricultural Quality Standards and Detection Technology, Hubei Academy of Agricultural Sciences, Wuhan, PR China
| | - Zhenzhen Xia
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Institute of Agricultural Quality Standards and Detection Technology, Hubei Academy of Agricultural Sciences, Wuhan, PR China
| | - Ting Wu
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
| | - Siyi Pan
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
| | - Xiaoyun Xu
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
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Chandran A, Oliver HJ, Rochet JC. Role of NFE2L1 in the Regulation of Proteostasis: Implications for Aging and Neurodegenerative Diseases. BIOLOGY 2023; 12:1169. [PMID: 37759569 PMCID: PMC10525699 DOI: 10.3390/biology12091169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/09/2023] [Accepted: 08/14/2023] [Indexed: 09/29/2023]
Abstract
A hallmark of aging and neurodegenerative diseases is a disruption of proteome homeostasis ("proteostasis") that is caused to a considerable extent by a decrease in the efficiency of protein degradation systems. The ubiquitin proteasome system (UPS) is the major cellular pathway involved in the clearance of small, short-lived proteins, including amyloidogenic proteins that form aggregates in neurodegenerative diseases. Age-dependent decreases in proteasome subunit expression coupled with the inhibition of proteasome function by aggregated UPS substrates result in a feedforward loop that accelerates disease progression. Nuclear factor erythroid 2- like 1 (NFE2L1) is a transcription factor primarily responsible for the proteasome inhibitor-induced "bounce-back effect" regulating the expression of proteasome subunits. NFE2L1 is localized to the endoplasmic reticulum (ER), where it is rapidly degraded under basal conditions by the ER-associated degradation (ERAD) pathway. Under conditions leading to proteasome impairment, NFE2L1 is cleaved and transported to the nucleus, where it binds to antioxidant response elements (AREs) in the promoter region of proteasome subunit genes, thereby stimulating their transcription. In this review, we summarize the role of UPS impairment in aging and neurodegenerative disease etiology and consider the potential benefit of enhancing NFE2L1 function as a strategy to upregulate proteasome function and alleviate pathology in neurodegenerative diseases.
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Affiliation(s)
- Aswathy Chandran
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907, USA
- Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, IN 47907, USA
| | - Haley Jane Oliver
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907, USA
- Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, IN 47907, USA
| | - Jean-Christophe Rochet
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907, USA
- Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, IN 47907, USA
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36
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Doering KRS, Ermakova G, Taubert S. Nuclear hormone receptor NHR-49 is an essential regulator of stress resilience and healthy aging in Caenorhabditis elegans. Front Physiol 2023; 14:1241591. [PMID: 37645565 PMCID: PMC10461480 DOI: 10.3389/fphys.2023.1241591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 08/01/2023] [Indexed: 08/31/2023] Open
Abstract
The genome of Caenorhabditis elegans encodes 284 nuclear hormone receptor, which perform diverse functions in development and physiology. One of the best characterized of these is NHR-49, related in sequence and function to mammalian hepatocyte nuclear factor 4α and peroxisome proliferator-activated receptor α. Initially identified as regulator of lipid metabolism, including fatty acid catabolism and desaturation, additional important roles for NHR-49 have since emerged. It is an essential contributor to longevity in several genetic and environmental contexts, and also plays vital roles in the resistance to several stresses and innate immune response to infection with various bacterial pathogens. Here, we review how NHR-49 is integrated into pertinent signaling circuits and how it achieves its diverse functions. We also highlight areas for future investigation including identification of regulatory inputs that drive NHR-49 activity and identification of tissue-specific gene regulatory outputs. We anticipate that future work on this protein will provide information that could be useful for developing strategies to age-associated declines in health and age-related human diseases.
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Affiliation(s)
- Kelsie R. S. Doering
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, BC, Canada
- Edwin S. H. Leong Centre for Healthy Aging, The University of British Columbia, Vancouver, BC, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, BC, Canada
- Department of Medical Genetics, The University of British Columbia, Vancouver, BC, Canada
| | - Glafira Ermakova
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, BC, Canada
- Edwin S. H. Leong Centre for Healthy Aging, The University of British Columbia, Vancouver, BC, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, BC, Canada
- Department of Medical Genetics, The University of British Columbia, Vancouver, BC, Canada
| | - Stefan Taubert
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, BC, Canada
- Edwin S. H. Leong Centre for Healthy Aging, The University of British Columbia, Vancouver, BC, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, BC, Canada
- Department of Medical Genetics, The University of British Columbia, Vancouver, BC, Canada
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37
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Williams RTP, King DC, Mastroianni IR, Hill JL, Apenes NW, Ramirez G, Miner EC, Moore A, Coleman K, Nishimura EO. Transcriptome profiling of the Caenorhabditis elegans intestine reveals that ELT-2 negatively and positively regulates intestinal gene expression within the context of a gene regulatory network. Genetics 2023; 224:iyad088. [PMID: 37183501 PMCID: PMC10411582 DOI: 10.1093/genetics/iyad088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/28/2023] [Accepted: 04/30/2023] [Indexed: 05/16/2023] Open
Abstract
ELT-2 is the major transcription factor (TF) required for Caenorhabditis elegans intestinal development. ELT-2 expression initiates in embryos to promote development and then persists after hatching through the larval and adult stages. Though the sites of ELT-2 binding are characterized and the transcriptional changes that result from ELT-2 depletion are known, an intestine-specific transcriptome profile spanning developmental time has been missing. We generated this dataset by performing Fluorescence Activated Cell Sorting on intestine cells at distinct developmental stages. We analyzed this dataset in conjunction with previously conducted ELT-2 studies to evaluate the role of ELT-2 in directing the intestinal gene regulatory network through development. We found that only 33% of intestine-enriched genes in the embryo were direct targets of ELT-2 but that number increased to 75% by the L3 stage. This suggests additional TFs promote intestinal transcription especially in the embryo. Furthermore, only half of ELT-2's direct target genes were dependent on ELT-2 for their proper expression levels, and an equal proportion of those responded to elt-2 depletion with over-expression as with under-expression. That is, ELT-2 can either activate or repress direct target genes. Additionally, we observed that ELT-2 repressed its own promoter, implicating new models for its autoregulation. Together, our results illustrate that ELT-2 impacts roughly 20-50% of intestine-specific genes, that ELT-2 both positively and negatively controls its direct targets, and that the current model of the intestinal regulatory network is incomplete as the factors responsible for directing the expression of many intestinal genes remain unknown.
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Affiliation(s)
- Robert T P Williams
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - David C King
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Izabella R Mastroianni
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jessica L Hill
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Nicolai W Apenes
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Gabriela Ramirez
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
- Department of Cell and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - E Catherine Miner
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Andrew Moore
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Karissa Coleman
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Erin Osborne Nishimura
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
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Petratou D, Gjikolaj M, Kaulich E, Schafer W, Tavernarakis N. A proton-inhibited DEG/ENaC ion channel maintains neuronal ionstasis and promotes neuronal survival under stress. iScience 2023; 26:107117. [PMID: 37416472 PMCID: PMC10320524 DOI: 10.1016/j.isci.2023.107117] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 03/28/2023] [Accepted: 06/09/2023] [Indexed: 07/08/2023] Open
Abstract
The nervous system participates in the initiation and modulation of systemic stress. Ionstasis is of utmost importance for neuronal function. Imbalance in neuronal sodium homeostasis is associated with pathologies of the nervous system. However, the effects of stress on neuronal Na+ homeostasis, excitability, and survival remain unclear. We report that the DEG/ENaC family member DEL-4 assembles into a proton-inactivated sodium channel. DEL-4 operates at the neuronal membrane and synapse to modulate Caenorhabditis elegans locomotion. Heat stress and starvation alter DEL-4 expression, which in turn alters the expression and activity of key stress-response transcription factors and triggers appropriate motor adaptations. Similar to heat stress and starvation, DEL-4 deficiency causes hyperpolarization of dopaminergic neurons and affects neurotransmission. Using humanized models of neurodegenerative diseases in C. elegans, we showed that DEL-4 promotes neuronal survival. Our findings provide insights into the molecular mechanisms by which sodium channels promote neuronal function and adaptation under stress.
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Affiliation(s)
- Dionysia Petratou
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, Heraklion, 70013 Crete, Greece
- Department of Basic Sciences, Medical School, University of Crete, Heraklion, 71003 Crete, Greece
| | - Martha Gjikolaj
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, Heraklion, 70013 Crete, Greece
- Department of Basic Sciences, Medical School, University of Crete, Heraklion, 71003 Crete, Greece
| | - Eva Kaulich
- Neurobiology Division, MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, CB2 0QH Cambridge, UK
| | - William Schafer
- Neurobiology Division, MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, CB2 0QH Cambridge, UK
| | - Nektarios Tavernarakis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, Heraklion, 70013 Crete, Greece
- Department of Basic Sciences, Medical School, University of Crete, Heraklion, 71003 Crete, Greece
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Choi PG, Park SH, Nirmala FS, Kim HS, Kim MJ, Hahm JH, Seo HD, Ahn J, Ha T, Jung CH. Geniposide-Rich Gardenia jasminoides Ellis Fruit Extract Increases Healthspan in Caenorhabditis elegans. J Gerontol A Biol Sci Med Sci 2023; 78:1108-1115. [PMID: 36821434 DOI: 10.1093/gerona/glad066] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Indexed: 02/24/2023] Open
Abstract
The human life span has been markedly extended since the 1900s, but it has not brought healthy aging to everyone. This increase in life expectancy without an increase in healthspan is a major global concern that imposes considerable health care budgets and degrades the quality of life of older adults. Dietary interventions are a promising strategy to increase healthspan. In this study, we evaluated whether a Gardenia jasminoides Ellis fruit ethanol extract (GFE) increases the life span of Caenorhabditis elegans (C. elegans). Treatment with 10 mg/mL GFE increased the life span by 27.1% when compared to the vehicle group. GFE (10 mg/mL) treatment improved healthspan-related markers (pharyngeal pumping, muscle quality, age-pigment, and reactive oxygen species accumulation) and exerted a protective effect against amyloid β 1-42 toxicity. These effects of GFE are related to the inhibition of insulin/IGF-1 signaling and activation of SKN-1/Nrf, thereby promoting the expression of stress resistance-related genes. In addition, treatment with 10 mM geniposide, the most abundant component of GFE, improved healthspan-related markers and increased life span by 18.55% when compared to the vehicle group. Collectively, these findings demonstrate that GFE and its component geniposide increase the life span along with healthspan in C. elegans.
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Affiliation(s)
- Pyeong Geun Choi
- Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
- Aging and Metabolism Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
| | - So-Hyun Park
- Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
- Aging and Metabolism Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
| | - Farida S Nirmala
- Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
- Aging and Metabolism Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
| | - Hee Soo Kim
- Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
- Aging and Metabolism Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
| | - Min Jung Kim
- Personalized Diet Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
| | - Jeong-Hoon Hahm
- Aging and Metabolism Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
| | - Hyo-Deok Seo
- Aging and Metabolism Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
| | - Jiyun Ahn
- Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
- Aging and Metabolism Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
| | - Taeyoul Ha
- Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
- Aging and Metabolism Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
| | - Chang Hwa Jung
- Department of Food Biotechnology, University of Science and Technology, Daejeon, South Korea
- Aging and Metabolism Research Group, Korea Food Research Institute, Jeollabuk-do, South Korea
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40
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Guerrero-Rubio MA, Hernández-García S, García-Carmona F, Gandía-Herrero F. Consumption of commonly used artificial food dyes increases activity and oxidative stress in the animal model Caenorhabditis elegans. Food Res Int 2023; 169:112925. [PMID: 37254351 DOI: 10.1016/j.foodres.2023.112925] [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: 01/18/2023] [Revised: 04/13/2023] [Accepted: 04/26/2023] [Indexed: 06/01/2023]
Abstract
In recent decades, the consumption of artificial colorants in foods and beverages has increased despite of concerns in the general population raised by studies that have shown possible injurious effects. In this study, tartrazine, sunset yellow, quinoline yellow, ponceau 4R, carmoisine and allura red were employed as pure compounds to explore their effects in vivo in the animal model Caenorhabditis elegans. The exposition of C. elegans to these artificial dyes produced damage related with aging such as oxidative stress and lipofuscin accumulation, as well as a heavy shortening of lifespan, alterations in movement patterns and alterations in the production of dopamine receptors. Besides, microarray analysis performed with worms treated with tartrazine and ponceau 4R showed how the consumption of synthetic colorants is able to alter the expression of genes involved in resistance to oxidative stress and neurodegeneration.
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Affiliation(s)
- M Alejandra Guerrero-Rubio
- Departamento de Bioquímica y Biología Molecular A, Unidad Docente de Biología, Facultad de Veterinaria, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Murcia, Spain
| | - Samanta Hernández-García
- Departamento de Bioquímica y Biología Molecular A, Unidad Docente de Biología, Facultad de Veterinaria, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Murcia, Spain
| | - Francisco García-Carmona
- Departamento de Bioquímica y Biología Molecular A, Unidad Docente de Biología, Facultad de Veterinaria, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Murcia, Spain
| | - Fernando Gandía-Herrero
- Departamento de Bioquímica y Biología Molecular A, Unidad Docente de Biología, Facultad de Veterinaria, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Murcia, Spain.
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Varela-López A, Romero-Márquez JM, Navarro-Hortal MD, Ramirez-Tortosa CL, Battino M, Forbes-Hernández TY, Quiles JL. Dietary antioxidants and lifespan: Relevance of environmental conditions, diet, and genotype of experimental models. Exp Gerontol 2023; 178:112221. [PMID: 37230336 DOI: 10.1016/j.exger.2023.112221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/21/2023] [Accepted: 05/22/2023] [Indexed: 05/27/2023]
Abstract
The rise of life expectancy in current societies is not accompanied, to date, by a similar increase in healthspan, which represents a great socio-economic problem. It has been suggested that aging can be manipulated and then, the onset of all age-associated chronic disorders can be delayed because these pathologies share age as primary underlying risk factor. One of the most extended ideas is that aging is consequence of the accumulation of molecular damage. According to the oxidative damage theory, antioxidants should slow down aging, extending lifespan and healthspan. The present review analyzes studies evaluating the effect of dietary antioxidants on lifespan of different aging models and discusses the evidence on favor of their antioxidant activity as anti-aging mechanisms. Moreover, possible causes for differences between the reported results are evaluated.
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Affiliation(s)
- Alfonso Varela-López
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain
| | - José M Romero-Márquez
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain
| | - María D Navarro-Hortal
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain
| | | | - Maurizio Battino
- Department of Clinical Sciences, Polytechnic University of Marche, 60131 Ancona, Italy; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing, Jiangsu University, Zhenjiang 212013, China
| | - Tamara Y Forbes-Hernández
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain
| | - José L Quiles
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain; Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres, 21, 39011 Santander, Spain; Research and Development Functional Food Centre (CIDAF), Health Science Technological Park, Avenida del Conocimiento 37, 18016 Granada, Spain.
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42
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Soo SK, Rudich ZD, Ko B, Moldakozhayev A, AlOkda A, Van Raamsdonk JM. Biological resilience and aging: Activation of stress response pathways contributes to lifespan extension. Ageing Res Rev 2023; 88:101941. [PMID: 37127095 DOI: 10.1016/j.arr.2023.101941] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/06/2023] [Accepted: 04/28/2023] [Indexed: 05/03/2023]
Abstract
While aging was traditionally viewed as a stochastic process of damage accumulation, it is now clear that aging is strongly influenced by genetics. The identification and characterization of long-lived genetic mutants in model organisms has provided insights into the genetic pathways and molecular mechanisms involved in extending longevity. Long-lived genetic mutants exhibit activation of multiple stress response pathways leading to enhanced resistance to exogenous stressors. As a result, lifespan exhibits a significant, positive correlation with resistance to stress. Disruption of stress response pathways inhibits lifespan extension in multiple long-lived mutants representing different pathways of lifespan extension and can also reduce the lifespan of wild-type animals. Combined, this suggests that activation of stress response pathways is a key mechanism by which long-lived mutants achieve their extended longevity and that many of these pathways are also required for normal lifespan. These results highlight an important role for stress response pathways in determining the lifespan of an organism.
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Affiliation(s)
- Sonja K Soo
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada; Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Zenith D Rudich
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada; Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Bokang Ko
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada; Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Alibek Moldakozhayev
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada; Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, United States
| | - Abdelrahman AlOkda
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada; Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Jeremy M Van Raamsdonk
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada; Metabolic Disorders and Complications Program, and Brain Repair and Integrative Neuroscience Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada.
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43
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Phan HD, Nguyen TTM, Lee S, Seo M, An YJ, de Guzman ACV. The metabolic contribution of SKN-1/Nrf2 to the lifespan of Caenorhabditis elegans. Metabolomics 2023; 19:58. [PMID: 37289273 DOI: 10.1007/s11306-023-02022-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 05/23/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND AND AIMS SKN-1, a C. elegans transcription factor analogous to the mammalian NF-E2-related factor (Nrf2), has been known to promote oxidative stress resistance aiding nematodes' longevity. Although SKN-1's functions suggest its implication in lifespan modulation through cellular metabolism, the actual mechanism of how metabolic rearrangements contribute to SKN-1's lifespan modulation has yet to be well characterized. Therefore, we performed the metabolomic profiling of the short-lived skn-1-knockdown C. elegans. METHODS We analyzed the metabolic profile of the skn-1-knockdown worms with nuclear magnetic resonance (NMR) spectroscopy and liquid chromatography-tandem mass spectrometry (LC-MS/MS) and obtained distinctive metabolomic profiles compared to WT worms. We further extended our study with gene expression analysis to examine the expression level of genes encoding all metabolic enzymes. RESULTS A significant increase in the phosphocholine and AMP/ATP ratio, potential biomarkers of aging, was observed, accompanied by a decrease in the transsulfuration metabolites, NADPH/NADP+ ratio, and total glutathione (GSHt), which are known to be involved in oxidative stress defense. skn-1-RNAi worms also exhibited an impairment in the phase II detoxification system, confirmed by the lower conversion rate of paracetamol to paracetamol-glutathione. By further examining the transcriptomic profile, we found a decrease in the expression of cbl-1, gpx, T25B9.9, ugt, and gst, which are involved in GSHt and NADPH synthesis as well as in the phase II detoxification system. CONCLUSION Our multi-omics results consistently revealed that the cytoprotective mechanisms, including cellular redox reactions and xenobiotic detoxification system, contribute to the roles of SKN-1/Nrf2 in the lifespan of worms.
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Affiliation(s)
- Hong-Duc Phan
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Sillim-Dong, Gwanak-Gu, Seoul, 08826, South Korea
| | - Tin Tin Manh Nguyen
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Sillim-Dong, Gwanak-Gu, Seoul, 08826, South Korea
- Department of Pharmacy, Binh Duong University, Thu Dau Mot, 820000, Vietnam
| | - Sujin Lee
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Sillim-Dong, Gwanak-Gu, Seoul, 08826, South Korea
| | - Munjun Seo
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Sillim-Dong, Gwanak-Gu, Seoul, 08826, South Korea
| | - Yong Jin An
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Sillim-Dong, Gwanak-Gu, Seoul, 08826, South Korea.
| | - Arvie Camille V de Guzman
- College of Pharmacy, Natural Products Research Institute, Seoul National University, Sillim-Dong, Gwanak-Gu, Seoul, 08826, South Korea.
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44
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Zhi D, Xu S, Ling Z, Li Y, Zhu H, Zhao C, Wang D. Shenqi formula delayed Alzheimer's disease-like symptoms by skn-1 pathway in Caernorhabditis elegans. JOURNAL OF ETHNOPHARMACOLOGY 2023:116741. [PMID: 37290734 DOI: 10.1016/j.jep.2023.116741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shenqi formula is composed of Codonopsis pilosula (Cp) and Lycium barbarum (Lb), and it is traditionally used for promoting qi and nourishing the spleen, liver and kidney. Cp and Lb have been reported to improve cognitive performance in APP/PS1 mice, prevent the accumulation of Aβ, and reduce the neurotoxicity of Aβ to achieve the anti-Alzheimer's disease (AD) effect. AIM OF THE STUDY Shenqi formula was explored the therapeutic effect on Caenorhabditis elegans AD pathological model and the underlying mechanism of action. MATERIALS AND METHODS Paralysis assay and serotonin sensitivity assay was used to detect whether Shenqi formula can alleviate AD paralysis phenotype, and then DPPH, ABTS, NBT and Fenton methods were applied to investigate the scavenging capacity to free radical, ROS, ·O2- and ·OH of Shenqi formula in vitro. H2DCF-DA and MitoSOX™ Red were employed to measure ROS and .O2- accumulation, respectively. RNAi was used to knock down the expression of skn-1 and daf-16 related to oxidative stress resistance signalling pathway. Fluorescence microscopy was used to record the expression of SOD-3:GFP, GST-4:GFP, SOD-1:YFP, and the nuclear translocation of SKN-1 and DAF-16. Western blot assay was carried out to test Aβ monomers and oligomers. RESULTS Shenqi formula delayed the AD-like pathological characteristics in C. elegans, and the complete Shenqi formula was more effective than Cp or Lb alone. The effect of Shenqi formula on delaying worm paralysis was partially eliminated by skn-1 RNAi, but not daf-16 RNAi. Shenqi formula significantly inhibited the abnormal deposition of Aβ protein, decreased Aβ protein monomers and oligomers. It increased the expressions of gst-4, sod-1, and sod-3 similar to paraquat, companied by rise then fall of ROS and .O2- in AD worms. CONCLUSIONS Shenqi formula at least partially depended on SKN-1 signalling pathway to exert its anti-AD effect, and it is potential to be used as a kind of health food to prevent the progress of AD.
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Affiliation(s)
- Dejuan Zhi
- School of Pharmacy, Lanzhou University, No.199 Donggang West Road, Lanzhou, Gansu, 730000, China; Frontiers Science Center for Rare Isotopes, No.222 Tianshui South Road, Lanzhou, Gansu, 730000, China.
| | - Shuaishuai Xu
- School of Pharmacy, Lanzhou University, No.199 Donggang West Road, Lanzhou, Gansu, 730000, China.
| | - Zhang Ling
- School of Pharmacy, Lanzhou University, No.199 Donggang West Road, Lanzhou, Gansu, 730000, China.
| | - Yuxuan Li
- School of Pharmacy, Lanzhou University, No.199 Donggang West Road, Lanzhou, Gansu, 730000, China.
| | - Hai Zhu
- School of Pharmacy, Lanzhou University, No.199 Donggang West Road, Lanzhou, Gansu, 730000, China.
| | - Chengmu Zhao
- School of Pharmacy, Lanzhou University, No.199 Donggang West Road, Lanzhou, Gansu, 730000, China.
| | - Dongsheng Wang
- School of Pharmacy, Lanzhou University, No.199 Donggang West Road, Lanzhou, Gansu, 730000, China; Frontiers Science Center for Rare Isotopes, No.222 Tianshui South Road, Lanzhou, Gansu, 730000, China.
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Raj D, Kraish B, Martikainen J, Podraza-Farhanieh A, Kao G, Naredi P. Cisplatin toxicity is counteracted by the activation of the p38/ATF-7 signaling pathway in post-mitotic C. elegans. Nat Commun 2023; 14:2886. [PMID: 37210583 DOI: 10.1038/s41467-023-38568-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 05/09/2023] [Indexed: 05/22/2023] Open
Abstract
Cisplatin kills proliferating cells via DNA damage but also has profound effects on post-mitotic cells in tumors, kidneys, and neurons. However, the effects of cisplatin on post-mitotic cells are still poorly understood. Among model systems, C. elegans adults are unique in having completely post-mitotic somatic tissues. The p38 MAPK pathway controls ROS detoxification via SKN-1/NRF and immune responses via ATF-7/ATF2. Here, we show that p38 MAPK pathway mutants are sensitive to cisplatin, but while cisplatin exposure increases ROS levels, skn-1 mutants are resistant. Cisplatin exposure leads to phosphorylation of PMK-1/MAPK and ATF-7 and the IRE-1/TRF-1 signaling module functions upstream of the p38 MAPK pathway to activate signaling. We identify the response proteins whose increased abundance depends on IRE-1/p38 MAPK activity as well as cisplatin exposure. Four of these proteins are necessary for protection from cisplatin toxicity, which is characterized by necrotic death. We conclude that the p38 MAPK pathway-driven proteins are crucial for adult cisplatin resilience.
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Affiliation(s)
- Dorota Raj
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, SE413 45, Gothenburg, Sweden
| | - Bashar Kraish
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, SE413 45, Gothenburg, Sweden
| | - Jari Martikainen
- Bioinformatics and Data Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, SE413 45, Gothenburg, Sweden
| | - Agnieszka Podraza-Farhanieh
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, SE413 45, Gothenburg, Sweden
- Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, SE413 45, Gothenburg, Sweden
| | - Gautam Kao
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, SE413 45, Gothenburg, Sweden.
| | - Peter Naredi
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, SE413 45, Gothenburg, Sweden.
- Department of Surgery, Sahlgrenska University Hospital, SE413 45, Gothenburg, Sweden.
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Cheng Y, Hou BH, Xie GL, Shao YT, Yang J, Xu C. Transient inhibition of mitochondrial function by chrysin and apigenin prolong longevity via mitohormesis in C. elegans. Free Radic Biol Med 2023; 203:24-33. [PMID: 37023934 DOI: 10.1016/j.freeradbiomed.2023.03.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023]
Abstract
Mild inhibition of mitochondrial function leads to longevity. Genetic disruption of mitochondrial respiratory components either by mutation or RNAi greatly extends the lifespan in yeast, worms, and drosophila. This has given rise to the idea that pharmacologically inhibiting mitochondrial function would be a workable strategy for postponing aging. Toward this end, we used a transgenic worm strain that expresses the firefly luciferase enzyme widely to evaluate compounds by tracking real-time ATP levels. We identified chrysin and apigenin, which reduced ATP production and increased the lifespan of worms. Mechanistically, we discovered that chrysin and apigenin transiently inhibit mitochondrial respiration and induce an early ROS, and the lifespan-extending effect is dependent on transient ROS formation. We also show that AAK-2/AMPK, DAF-16/FOXO, and SKN-1/NRF-2 are required for chrysin or apigenin-mediated lifespan extension. Temporary increases in ROS levels trigger an adaptive response in a mitohormetic way, thereby increasing oxidative stress capacity and cellular metabolic adaptation, finally leading to longevity. Thus, chrysin and apigenin represent a class of compounds isolated from natural products that delay senescence and improve age-related diseases by inhibiting mitochondrial function and shed new light on the function of additional plant-derived polyphenols in enhancing health and delaying aging. Collectively, this work provides an avenue for pharmacological inhibition of mitochondrial function and the mechanism underlining their lifespan-extending properties.
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Affiliation(s)
- Yu Cheng
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Bing-Hao Hou
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Gui-Lin Xie
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Ya-Ting Shao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Jie Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China.
| | - Chen Xu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China.
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Hu Y, Xu Z, Pan Q, Ma L. Casein kinase 1 gamma regulates oxidative stress response via interacting with the NADPH dual oxidase complex. PLoS Genet 2023; 19:e1010740. [PMID: 37099597 PMCID: PMC10166522 DOI: 10.1371/journal.pgen.1010740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 05/08/2023] [Accepted: 04/10/2023] [Indexed: 04/27/2023] Open
Abstract
Oxidative stress response is a fundamental biological process mediated by conserved mechanisms. The identities and functions of some key regulators remain unknown. Here, we report a novel role of C. elegans casein kinase 1 gamma CSNK-1 (also known as CK1γ or CSNK1G) in regulating oxidative stress response and ROS levels. csnk-1 interacted with the bli-3/tsp-15/doxa-1 NADPH dual oxidase genes via genetic nonallelic noncomplementation to affect C. elegans survival in oxidative stress. The genetic interaction was supported by specific biochemical interactions between DOXA-1 and CSNK-1 and potentially between their human orthologs DUOXA2 and CSNK1G2. Consistently, CSNK-1 was required for normal ROS levels in C. elegans. CSNK1G2 and DUOXA2 each can promote ROS levels in human cells, effects that were suppressed by a small molecule casein kinase 1 inhibitor. We also detected genetic interactions between csnk-1 and skn-1 Nrf2 in oxidative stress response. Together, we propose that CSNK-1 CSNK1G defines a novel conserved regulatory mechanism for ROS homeostasis.
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Affiliation(s)
- Yiman Hu
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Zhaofa Xu
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Qian Pan
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Long Ma
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, China
- The Key Laboratory of Precision Molecular Medicine of Hunan Province, Central South University, Changsha, Hunan, China
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Tsai Y, Lin YC, Lee YH. Octopamine-MAPK-SKN-1 signaling suppresses mating-induced oxidative stress in Caenorhabditis elegans gonads to protect fertility. iScience 2023; 26:106162. [PMID: 36876134 PMCID: PMC9976470 DOI: 10.1016/j.isci.2023.106162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 12/12/2022] [Accepted: 02/02/2023] [Indexed: 02/11/2023] Open
Abstract
Sexual conflict over mating is costly to female physiology. Caenorhabditis elegans hermaphrodites generally produce self-progeny, but they can produce cross-progeny upon successfully mating with a male. We have uncovered that C. elegans hermaphrodites experience sexual conflict over mating, resulting in severe costs in terms of their fertility and longevity. We show that reactive oxygen species (ROS) accumulate on the apical surfaces of spermathecal bag cells after successful mating and induce cell damage, leading to ovulation defects and fertility suppression. To counteract these negative impacts, C. elegans hermaphrodites deploy the octopamine (OA) regulatory pathway to enhance glutathione (GSH) biosynthesis and protect spermathecae from mating-induced ROS. We show that the SER-3 receptor and mitogen-activated protein kinase (MAPK) KGB-1 cascade transduce the OA signal to transcription factor SKN-1/Nrf2 in the spermatheca to upregulate GSH biosynthesis.
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Affiliation(s)
- Yu Tsai
- Institute of Molecular Biology, Academia Sinica, Taipei 115, Taiwan
| | - Yu-Chun Lin
- Institute of Molecular Biology, Academia Sinica, Taipei 115, Taiwan
| | - Ying-Hue Lee
- Institute of Molecular Biology, Academia Sinica, Taipei 115, Taiwan
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Kawano T, Kashiwagi M, Kanuka M, Chen CK, Yasugaki S, Hatori S, Miyazaki S, Tanaka K, Fujita H, Nakajima T, Yanagisawa M, Nakagawa Y, Hayashi Y. ER proteostasis regulators cell-non-autonomously control sleep. Cell Rep 2023; 42:112267. [PMID: 36924492 DOI: 10.1016/j.celrep.2023.112267] [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: 07/01/2022] [Revised: 01/17/2023] [Accepted: 02/28/2023] [Indexed: 03/17/2023] Open
Abstract
Sleep is regulated by peripheral tissues under fatigue. The molecular pathways in peripheral cells that trigger systemic sleep-related signals, however, are unclear. Here, a forward genetic screen in C. elegans identifies 3 genes that strongly affect sleep amount: sel-1, sel-11, and mars-1. sel-1 and sel-11 encode endoplasmic reticulum (ER)-associated degradation components, whereas mars-1 encodes methionyl-tRNA synthetase. We find that these machineries function in non-neuronal tissues and that the ER unfolded protein response components inositol-requiring enzyme 1 (IRE1)/XBP1 and protein kinase R-like ER kinase (PERK)/eukaryotic initiation factor-2α (eIF2α)/activating transcription factor-4 (ATF4) participate in non-neuronal sleep regulation, partly by reducing global translation. Neuronal epidermal growth factor receptor (EGFR) signaling is also required. Mouse studies suggest that this mechanism is conserved in mammals. Considering that prolonged wakefulness increases ER proteostasis stress in peripheral tissues, our results suggest that peripheral ER proteostasis factors control sleep homeostasis. Moreover, based on our results, peripheral tissues likely cope with ER stress not only by the well-established cell-autonomous mechanisms but also by promoting the individual's sleep.
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Affiliation(s)
- Taizo Kawano
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan
| | - Mitsuaki Kashiwagi
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan; Department of Biological Sciences, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mika Kanuka
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan
| | - Chung-Kuan Chen
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan; Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Shinnosuke Yasugaki
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan; Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Sena Hatori
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan; PhD Program in Humanics, School of Integrative and Global Majors, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Shinichi Miyazaki
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan; PhD Program in Humanics, School of Integrative and Global Majors, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Kaeko Tanaka
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan
| | - Hidetoshi Fujita
- Department of Biomedical Engineering, Osaka Institute of Technology, Osaka 535-8585, Japan
| | - Toshiro Nakajima
- Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Masashi Yanagisawa
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan; Life Science Center, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba 305-8575, Japan; Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yoshimi Nakagawa
- Department of Complex Biosystem Research, Institute of Natural Medicine, University of Toyama, Toyama, Toyama 930-0194, Japan
| | - Yu Hayashi
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan; Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; Department of Biological Sciences, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.
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Wang J, Zhou Y, Yu Y, Wang Y, Xue D, Zhou Y, Li X. A ginseng-derived rhamnogalacturonan I (RG-I) pectin promotes longevity via TOR signalling in Caenorhabditis elegans. Carbohydr Polym 2023; 312:120818. [PMID: 37059546 DOI: 10.1016/j.carbpol.2023.120818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/07/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023]
Abstract
Panax ginseng C. A. Meyer (ginseng), a traditional Chinese herb, is usually used to improve health and increase anti-aging activity for human. Polysaccharides are bioactive components of ginseng. Herein, using Caenorhabditis elegans as a model, we discovered a ginseng-derived rhamnogalacturonan I (RG-I) pectin WGPA-1-RG promoted longevity via TOR signalling pathway with transcription factors FOXO/DAF-16 and Nrf2/SKN-1 accumulated in the nucleus, where they activated target genes. And the WGPA-1-RG-mediated lifespan extension was dependent on endocytosis, rather than a bacterial metabolic process. Glycosidic linkage analyses combined with arabinose- and galactose-releasing enzyme hydrolyses identified the RG-I backbone of WGPA-1-RG was primarily substituted with α-1,5-linked arabinan, β-1,4-linked galactan and arabinogalactan II (AG-II) side chains. Feeding worms with the WGPA-1-RG-derived fractions which lost distinct structural elements by enzymatic digestions, we found the arabinan side chains prominently contributed to the longevity-promoting activity of WGPA-1-RG. These findings provide a novel ginseng-derived nutrient that potentially increases human longevity.
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