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Raghunath A, Nagarajan R, Sundarraj K, Panneerselvam L, Perumal E. Genome-wide identification and analysis of Nrf2 binding sites - Antioxidant response elements in zebrafish. Toxicol Appl Pharmacol 2018; 360:236-248. [PMID: 30243843 DOI: 10.1016/j.taap.2018.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 09/08/2018] [Accepted: 09/13/2018] [Indexed: 12/30/2022]
Abstract
In the post-genomic era, deciphering the Nrf2 binding sites - antioxidant response elements (AREs) is an essential task that underlies and governs the Keap1-Nrf2-ARE pathway - a cell survival response pathway to environmental stresses in the vertebrate model system. AREs regulate the transcription of a repertoire of phase II detoxifying and/or oxidative-stress responsive genes, offering protection against toxic chemicals, carcinogens, and xenobiotics. In order to identify and analyze AREs in zebrafish, a pattern search algorithm was developed to identify AREs and computational tools available online were utilized to analyze the identified AREs in zebrafish. This study identified the AREs within 30 kb upstream from the transcription start site of antioxidant genes and mitochondrial genes. We report for the first time the AREs of all the known protein coding genes in the zebrafish genome. Western blotting, RT2 profiler array PCR, and qRT-PCR were performed to test whether AREs influence the Nrf2 target genes expression in the zebrafish larvae using sulforaphane. This study reveals unique AREs that have not been previously reported in the cytoprotective genes. Nine TGAG/CNNNTC and six TGAG/CNNNGC AREs were observed significantly. Our findings suggest that AREs drive the dynamic transcriptional events of Nrf2 target genes in the zebrafish larvae on exposure to sulforaphane. The identified abundant putative AREs will define the Keap1-Nrf2-ARE network and elucidate the precise regulation of Nrf2-ARE pathway in not only diseases but also in embryonic development, inflammation, and aerobic respiration. Our results help to understand the dynamic complexity of the Nrf2-ARE system in zebrafish.
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Affiliation(s)
- Azhwar Raghunath
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
| | - Raju Nagarajan
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai 600 036, Tamilnadu, India
| | - Kiruthika Sundarraj
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
| | - Lakshmikanthan Panneerselvam
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India
| | - Ekambaram Perumal
- Molecular Toxicology Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641 046, Tamilnadu, India.
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102
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Lungu-Mitea S, Oskarsson A, Lundqvist J. Development of an oxidative stress in vitro assay in zebrafish (Danio rerio) cell lines. Sci Rep 2018; 8:12380. [PMID: 30120374 PMCID: PMC6098050 DOI: 10.1038/s41598-018-30880-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/06/2018] [Indexed: 12/22/2022] Open
Abstract
The nuclear factor erythroid 2-related factor 2 (Nrf2) is a key regulator of cellular defense against oxidative stress and correlated with classical toxicological endpoints. In vitro methods using fish cell lines for the assessment of aquatic toxicity are needed for mechanistic studies and as an alternative to in vivo. We describe an in vitro assay to study oxidative stress using zebrafish cell lines. Transfection efficiency of twelve commercially available transfection reagents were tested in the zebrafish cell lines ZFL, ZF4, and Pac2. The most efficient reagent for each cell line was selected for further experiments. Cells were transiently transfected with an Nrf2-responsive luciferase plasmid. The assay was tested using the oxidative stress inducing chemicals tertbutylhydroquinone, hydrogen peroxide, and sulforaphane. Of the transfected cell lines, ZF4 and ZFL showed higher sensitivity. The latter were used to study potential oxidative stress induced by pesticides (diazinon, deltamethrin, atrazine, metazachlor, terbutylazine, diuron). Besides known inducers, Nrf2 activity was also significantly induced by diazinon, deltametrin, diuron, and metazachlor. Activation of Nrf2 by metazachlor is a novel finding. The described assay could be a valuable tool for research in toxicology to study the stress response of both pure chemicals and environmental water samples.
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Affiliation(s)
- Sebastian Lungu-Mitea
- Department of Biomedicine and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-750 07, Uppsala, Sweden.
| | - Agneta Oskarsson
- Department of Biomedicine and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-750 07, Uppsala, Sweden
| | - Johan Lundqvist
- Department of Biomedicine and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-750 07, Uppsala, Sweden
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103
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Rooney J, Oshida K, Vasani N, Vallanat B, Ryan N, Chorley BN, Wang X, Bell DA, Wu KC, Aleksunes LM, Klaassen CD, Kensler TW, Corton JC. Activation of Nrf2 in the liver is associated with stress resistance mediated by suppression of the growth hormone-regulated STAT5b transcription factor. PLoS One 2018; 13:e0200004. [PMID: 30114225 PMCID: PMC6095522 DOI: 10.1371/journal.pone.0200004] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 06/15/2018] [Indexed: 12/30/2022] Open
Abstract
The transcription factor Nrf2 (encoded by Nfe2l2) induces expression of numerous detoxifying and antioxidant genes in response to oxidative stress. The cytoplasmic protein Keap1 interacts with and represses Nrf2 function. Computational approaches were developed to identify factors that modulate Nrf2 in a mouse liver gene expression compendium. Forty-eight Nrf2 biomarker genes were identified using profiles from the livers of mice in which Nrf2 was activated genetically in Keap1-null mice or chemically by a potent activator of Nrf2 signaling. The rank-based Running Fisher statistical test was used to determine the correlation between the Nrf2 biomarker genes and a test set of 81 profiles with known Nrf2 activation status demonstrating a balanced accuracy of 96%. For a large number of factors examined in the compendium, we found consistent relationships between activation of Nrf2 and feminization of the liver transcriptome through suppression of the male-specific growth hormone (GH)-regulated transcription factor STAT5b. The livers of female mice exhibited higher Nrf2 activation than male mice in untreated or chemical-treated conditions. In male mice, Nrf2 was activated by treatment with ethinyl estradiol, whereas in female mice, Nrf2 was suppressed by treatment with testosterone. Nrf2 was activated in 5 models of disrupted GH signaling containing mutations in Pit1, Prop1, Ghrh, Ghrhr, and Ghr. Out of 59 chemical treatments that activated Nrf2, 36 exhibited STAT5b suppression in the male liver. The Nrf2-STAT5b coupling was absent in in vitro comparisons of chemical treatments. Treatment of male and female mice with 11 chemicals that induce oxidative stress led to activation of Nrf2 to greater extents in females than males. The enhanced basal and inducible levels of Nrf2 activation in females relative to males provides a molecular explanation for the greater resistance often seen in females vs. males to age-dependent diseases and chemical-induced toxicity.
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Affiliation(s)
- John Rooney
- NHEERL, US-EPA, Research Triangle Park, NC, United States of America
| | - Keiyu Oshida
- NHEERL, US-EPA, Research Triangle Park, NC, United States of America
| | - Naresh Vasani
- NHEERL, US-EPA, Research Triangle Park, NC, United States of America
| | - Beena Vallanat
- NHEERL, US-EPA, Research Triangle Park, NC, United States of America
| | - Natalia Ryan
- NHEERL, US-EPA, Research Triangle Park, NC, United States of America
| | - Brian N. Chorley
- NHEERL, US-EPA, Research Triangle Park, NC, United States of America
| | - Xuting Wang
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States of America
| | - Douglas A. Bell
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States of America
| | - Kai C. Wu
- University of Kansas Medical Center, Kansas City, KS, United States of America
| | - Lauren M. Aleksunes
- Rutgers University, Ernest Mario School of Pharmacy, Department of Pharmacology and Toxicology, Piscataway, NJ, United States of America
| | | | - Thomas W. Kensler
- Department of Pharmacology & Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Environmental Health & Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
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104
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Tamberg N, Tahk S, Koit S, Kristjuhan K, Kasvandik S, Kristjuhan A, Ilves I. Keap1-MCM3 interaction is a potential coordinator of molecular machineries of antioxidant response and genomic DNA replication in metazoa. Sci Rep 2018; 8:12136. [PMID: 30108253 PMCID: PMC6092318 DOI: 10.1038/s41598-018-30562-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 08/02/2018] [Indexed: 01/19/2023] Open
Abstract
Coordination of DNA replication and cellular redox homeostasis mechanisms is essential for the sustained genome stability due to the sensitivity of replicating DNA to oxidation. However, substantial gaps remain in our knowledge of underlying molecular pathways. In this study, we characterise the interaction of Keap1, a central antioxidant response regulator in Metazoa, with the replicative helicase subunit protein MCM3. Our analysis suggests that structural determinants of the interaction of Keap1 with its critical downstream target - Nrf2 master transactivator of oxidative stress response genes – may have evolved in evolution to mimic the conserved helix-2-insert motif of MCM3. We show that this has led to a competition between MCM3 and Nrf2 proteins for Keap1 binding, and likely recruited MCM3 for the competitive binding dependent modulation of Keap1 controlled Nrf2 activities. We hypothesise that such mechanism could help to adjust the Keap1-Nrf2 antioxidant response pathway according to the proliferative and replicative status of the cell, with possible reciprocal implications also for the regulation of cellular functions of MCM3. Altogether this suggests about important role of Keap1-MCM3 interaction in the cross-talk between replisome and redox homeostasis machineries in metazoan cells.
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Affiliation(s)
- Nele Tamberg
- Institute of Technology, University of Tartu, Tartu, 50411, Estonia
| | - Siret Tahk
- Institute of Technology, University of Tartu, Tartu, 50411, Estonia
| | - Sandra Koit
- Institute of Technology, University of Tartu, Tartu, 50411, Estonia
| | - Kersti Kristjuhan
- Institute of Molecular and Cell Biology, University of Tartu, Tartu, 51010, Estonia
| | - Sergo Kasvandik
- Institute of Technology, University of Tartu, Tartu, 50411, Estonia
| | - Arnold Kristjuhan
- Institute of Molecular and Cell Biology, University of Tartu, Tartu, 51010, Estonia
| | - Ivar Ilves
- Institute of Technology, University of Tartu, Tartu, 50411, Estonia.
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105
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Timme-Laragy AR, Hahn ME, Hansen JM, Rastogi A, Roy MA. Redox stress and signaling during vertebrate embryonic development: Regulation and responses. Semin Cell Dev Biol 2018; 80:17-28. [PMID: 28927759 PMCID: PMC5650060 DOI: 10.1016/j.semcdb.2017.09.019] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/08/2017] [Accepted: 09/11/2017] [Indexed: 12/21/2022]
Abstract
Vertebrate embryonic development requires specific signaling events that regulate cell proliferation and differentiation to occur at the correct place and the correct time in order to build a healthy embryo. Signaling pathways are sensitive to perturbations of the endogenous redox state, and are also susceptible to modulation by reactive species and antioxidant defenses, contributing to a spectrum of passive vs. active effects that can affect redox signaling and redox stress. Here we take a multi-level, integrative approach to discuss the importance of redox status for vertebrate developmental signaling pathways and cell fate decisions, with a focus on glutathione/glutathione disulfide, thioredoxin, and cysteine/cystine redox potentials and the implications for protein function in development. We present a tissue-specific example of the important role that reactive species play in pancreatic development and metabolic regulation. We discuss NFE2L2 (also known as NRF2) and related proteins, their roles in redox signaling, and their regulation of glutathione during development. Finally, we provide examples of xenobiotic compounds that disrupt redox signaling in the context of vertebrate embryonic development. Collectively, this review provides a systems-level perspective on the innate and inducible antioxidant defenses, as well as their roles in maintaining redox balance during chemical exposures that occur in critical windows of development.
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Affiliation(s)
- Alicia R Timme-Laragy
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA 01003, USA.
| | - Mark E Hahn
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
| | - Jason M Hansen
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, UT 84602, USA
| | - Archit Rastogi
- Molecular & Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA 01003, USA
| | - Monika A Roy
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA 01003, USA; Biotechnology Training Program, University of Massachusetts, Amherst, MA 01003, USA
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106
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Mascuch SJ, Boudreau PD, Carland TM, Pierce NT, Olson J, Hensler ME, Choi H, Campanale J, Hamdoun A, Nizet V, Gerwick WH, Gaasterland T, Gerwick L. Marine Natural Product Honaucin A Attenuates Inflammation by Activating the Nrf2-ARE Pathway. JOURNAL OF NATURAL PRODUCTS 2018; 81:506-514. [PMID: 29215273 PMCID: PMC6553616 DOI: 10.1021/acs.jnatprod.7b00734] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The cyanobacterial marine natural product honaucin A inhibits mammalian innate inflammation in vitro and in vivo. To decipher its mechanism of action, RNA sequencing was used to evaluate differences in gene expression of cultured macrophages following honaucin A treatment. This analysis led to the hypothesis that honaucin A exerts its anti-inflammatory activity through activation of the cytoprotective nuclear erythroid 2-related factor 2 (Nrf2)-antioxidant response element/electrophile response element (ARE/EpRE) signaling pathway. Activation of this pathway by honaucin A in cultured human MCF7 cells was confirmed using an Nrf2 luciferase reporter assay. In vitro alkylation experiments with the natural product and N-acetyl-l-cysteine suggest that honaucin A activates this pathway through covalent interaction with the sulfhydryl residues of the cytosolic repressor protein Keap1. Honaucin A presents a potential therapeutic lead for diseases with an inflammatory component modulated by Nrf2-ARE.
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Affiliation(s)
- Samantha J. Mascuch
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States
| | - Paul D. Boudreau
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States
| | | | - N. Tessa Pierce
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States
| | - Joshua Olson
- Department of Pediatrics, School of Medicine, and University of California, San Diego, La Jolla, California 92093, United States University of California, San Diego, La Jolla, California 92093, United States
| | - Mary E. Hensler
- Department of Pediatrics, School of Medicine, and University of California, San Diego, La Jolla, California 92093, United States University of California, San Diego, La Jolla, California 92093, United States
| | - Hyukjae Choi
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Joseph Campanale
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States
| | - Amro Hamdoun
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States
| | - Victor Nizet
- Department of Pediatrics, School of Medicine, and University of California, San Diego, La Jolla, California 92093, United States University of California, San Diego, La Jolla, California 92093, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - William H. Gerwick
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Teresa Gaasterland
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States
| | - Lena Gerwick
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States
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107
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Nrf2-Keap1 signaling in oxidative and reductive stress. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1865:721-733. [PMID: 29499228 DOI: 10.1016/j.bbamcr.2018.02.010] [Citation(s) in RCA: 990] [Impact Index Per Article: 165.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/25/2018] [Accepted: 02/22/2018] [Indexed: 02/07/2023]
Abstract
Nrf2 and its endogenous inhibitor, Keap1, function as a ubiquitous, evolutionarily conserved intracellular defense mechanism to counteract oxidative stress. Sequestered by cytoplasmic Keap1 and targeted to proteasomal degradation in basal conditions, in case of oxidative stress Nrf2 detaches from Keap1 and translocates to the nucleus, where it heterodimerizes with one of the small Maf proteins. The heterodimers recognize the AREs, that are enhancer sequences present in the regulatory regions of Nrf2 target genes, essential for the recruitment of key factors for transcription. In the present review we briefly introduce the Nrf2-Keap1 system and describe Nrf2 functions, illustrate the Nrf2-NF-κB cross-talk, and highlight the effects of the Nrf2-Keap1 system in the physiology and pathophysiology of striated muscle tissue taking into account its role(s) in oxidative stress and reductive stress.
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108
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Nrf2 activation attenuates genetic endoplasmic reticulum stress induced by a mutation in the phosphomannomutase 2 gene in zebrafish. Proc Natl Acad Sci U S A 2018; 115:2758-2763. [PMID: 29472449 DOI: 10.1073/pnas.1714056115] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Nrf2 plays critical roles in animals' defense against electrophiles and oxidative stress by orchestrating the induction of cytoprotective genes. We previously isolated the zebrafish mutant it768, which displays up-regulated expression of Nrf2 target genes in an uninduced state. In this paper, we determine that the gene responsible for it768 was the zebrafish homolog of phosphomannomutase 2 (Pmm2), which is a key enzyme in the initial steps of N-glycosylation, and its mutation in humans leads to PMM2-CDG (congenital disorders of glycosylation), the most frequent type of CDG. The pmm2it768 larvae exhibited mild defects in N-glycosylation, indicating that the pmm2it768 mutation is a hypomorph, as in human PMM2-CDG patients. A gene expression analysis showed that pmm2it768 larvae display up-regulation of endoplasmic reticulum (ER) stress, suggesting that the activation of Nrf2 was induced by the ER stress. Indeed, the treatment with the ER stress-inducing compounds up-regulated the gstp1 expression in an Nrf2-dependent manner. Furthermore, the up-regulation of gstp1 by the pmm2 inactivation was diminished by knocking down or out double-stranded RNA-activated protein kinase (PKR)-like ER kinase (PERK), one of the main ER stress sensors, suggesting that Nrf2 was activated in response to the ER stress via the PERK pathway. ER stress-induced activation of Nrf2 was reported previously, but the results have been controversial. Our present study clearly demonstrated that ER stress can indeed activate Nrf2 and this regulation is evolutionarily conserved among vertebrates. Moreover, ER stress induced in pmm2it768 mutants was ameliorated by the treatment of the Nrf2-activator sulforaphane, indicating that Nrf2 plays significant roles in the reduction of ER stress.
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109
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Tian W, Rojo de la Vega M, Schmidlin CJ, Ooi A, Zhang DD. Kelch-like ECH-associated protein 1 (KEAP1) differentially regulates nuclear factor erythroid-2-related factors 1 and 2 (NRF1 and NRF2). J Biol Chem 2018; 293:2029-2040. [PMID: 29255090 PMCID: PMC5808764 DOI: 10.1074/jbc.ra117.000428] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/04/2017] [Indexed: 12/28/2022] Open
Abstract
Nuclear factor erythroid-2-related factor 1 (NRF1) and NRF2 are essential for maintaining redox homeostasis and coordinating cellular stress responses. They are highly homologous transcription factors that regulate the expression of genes bearing antioxidant-response elements (AREs). Genetic ablation of NRF1 or NRF2 results in vastly different phenotypic outcomes, implying that they play different roles and may be differentially regulated. Kelch-like ECH-associated protein 1 (KEAP1) is the main negative regulator of NRF2 and mediates ubiquitylation and degradation of NRF2 through its NRF2-ECH homology-like domain 2 (Neh2). Here, we report that KEAP1 binds to the Neh2-like (Neh2L) domain of NRF1 and stabilizes it. Consistently, NRF1 is more stable in KEAP1+/+ than in KEAP1-/- isogenic cell lines, whereas NRF2 is dramatically stabilized in KEAP1-/- cells. Replacing NRF1's Neh2L domain with NRF2's Neh2 domain renders NRF1 sensitive to KEAP1-mediated degradation, indicating that the amino acids between the DLG and ETGE motifs, not just the motifs themselves, are essential for KEAP1-mediated degradation. Systematic site-directed mutagenesis identified the core amino acid residues required for KEAP1-mediated degradation and further indicated that the DLG and ETGE motifs with correct spacing are insufficient as a KEAP1 degron. Our results offer critical insights into our understanding of the differential regulation of NRF1 and NRF2 by KEAP1 and their different physiological roles.
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Affiliation(s)
- Wang Tian
- From the Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721
| | | | - Cody J. Schmidlin
- From the Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721
| | - Aikseng Ooi
- From the Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721
| | - Donna D. Zhang
- From the Department of Pharmacology and Toxicology, University of Arizona, Tucson, Arizona 85721, To whom correspondence should be addressed:
Dept. of Pharmacology and Toxicology, College of Pharmacy, 1703 E. Mabel St., Rm. 408, Tucson, AZ 85721. Tel.:
520-626-9918; Fax:
520-626-2466; E-mail:
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110
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Taverne YJ, Merkus D, Bogers AJ, Halliwell B, Duncker DJ, Lyons TW. Reactive Oxygen Species: Radical Factors in the Evolution of Animal Life: A molecular timescale from Earth's earliest history to the rise of complex life. Bioessays 2018; 40. [PMID: 29411901 DOI: 10.1002/bies.201700158] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 12/12/2017] [Indexed: 12/27/2022]
Abstract
Introduction of O2 to Earth's early biosphere stimulated remarkable evolutionary adaptations, and a wide range of electron acceptors allowed diverse, energy-yielding metabolic pathways. Enzymatic reduction of O2 yielded a several-fold increase in energy production, enabling evolution of multi-cellular animal life. However, utilization of O2 also presented major challenges as O2 and many of its derived reactive oxygen species (ROS) are highly toxic, possibly impeding multicellular evolution after the Great Oxidation Event. Remarkably, ROS, and especially hydrogen peroxide, seem to play a major part in early diversification and further development of cellular respiration and other oxygenic pathways, thus becoming an intricate part of evolution of complex life. Hence, although harnessing of chemical and thermo-dynamic properties of O2 for aerobic metabolism is generally considered to be an evolutionary milestone, the ability to use ROS for cell signaling and regulation may have been the first true breakthrough in development of complex life.
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Affiliation(s)
- Yannick J Taverne
- Department of Cardiothoracic Surgery Cardiovascular Research Institute COEUR Erasmus MC University Medical Centre Rotterdam, P.O. box 2040 - Room BD-559 3000 CA Rotterdam, Rotterdam, The Netherlands.,Division of Experimental Cardiology Department of Cardiology Cardiovascular Research Institute COEUR Erasmus MC University Medical Centre Rotterdam, P.O. box 2040, Room 2369, 3000 CA Rotterdam, Rotterdam, The Netherlands
| | - Daphne Merkus
- Division of Experimental Cardiology Department of Cardiology Cardiovascular Research Institute COEUR Erasmus MC University Medical Centre Rotterdam, P.O. box 2040, Room 2369, 3000 CA Rotterdam, Rotterdam, The Netherlands
| | - Ad J Bogers
- Department of Cardiothoracic Surgery Cardiovascular Research Institute COEUR Erasmus MC University Medical Centre Rotterdam, P.O. box 2040 - Room BD-559 3000 CA Rotterdam, Rotterdam, The Netherlands
| | - Barry Halliwell
- Department of Biochemistry Yong Loo Lin School of Medicine National University of Singapore, MD 7, 8 Medical Drive Singapore 117597 Singapore, Singapore
| | - Dirk J Duncker
- Division of Experimental Cardiology Department of Cardiology Cardiovascular Research Institute COEUR Erasmus MC University Medical Centre Rotterdam, P.O. box 2040, Room 2369, 3000 CA Rotterdam, Rotterdam, The Netherlands
| | - Timothy W Lyons
- Department of Earth Sciences University of California, University of California, Riverside, 900 University Ave. Riverside, 92521 California, California, USA
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111
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Guilbert SM, Lambert H, Rodrigue M, Fuchs M, Landry J, Lavoie JN. HSPB8 and BAG3 cooperate to promote spatial sequestration of ubiquitinated proteins and coordinate the cellular adaptive response to proteasome insufficiency. FASEB J 2018; 32:3518-3535. [DOI: 10.1096/fj.201700558rr] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Solenn M. Guilbert
- Centre de Recherche sur le Cancer de l'Université LavalUniversité LavalVille de QuébecQuebecCanada
- Oncologie, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec‐Université LavalUniversité LavalVille de QuébecQuebecCanada
| | - Herman Lambert
- Centre de Recherche sur le Cancer de l'Université LavalUniversité LavalVille de QuébecQuebecCanada
- Oncologie, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec‐Université LavalUniversité LavalVille de QuébecQuebecCanada
| | - Marc‐Antoine Rodrigue
- Centre de Recherche sur le Cancer de l'Université LavalUniversité LavalVille de QuébecQuebecCanada
- Oncologie, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec‐Université LavalUniversité LavalVille de QuébecQuebecCanada
| | - Margit Fuchs
- Centre de Recherche sur le Cancer de l'Université LavalUniversité LavalVille de QuébecQuebecCanada
- Oncologie, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec‐Université LavalUniversité LavalVille de QuébecQuebecCanada
| | - Jacques Landry
- Centre de Recherche sur le Cancer de l'Université LavalUniversité LavalVille de QuébecQuebecCanada
- Oncologie, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec‐Université LavalUniversité LavalVille de QuébecQuebecCanada
- Département de Biologie MoléculaireBiochimie Médicale et PathologieUniversité LavalVille de QuébecQuebecCanada
| | - Josée N. Lavoie
- Centre de Recherche sur le Cancer de l'Université LavalUniversité LavalVille de QuébecQuebecCanada
- Oncologie, Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec‐Université LavalUniversité LavalVille de QuébecQuebecCanada
- Département de Biologie MoléculaireBiochimie Médicale et PathologieUniversité LavalVille de QuébecQuebecCanada
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112
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Fuse Y, Endo Y, Araoi S, Daitoku H, Suzuki H, Kato M, Kobayashi M. The possible repositioning of an oral anti-arthritic drug, auranofin, for Nrf2-activating therapy: The demonstration of Nrf2-dependent anti-oxidative action using a zebrafish model. Free Radic Biol Med 2018; 115:405-411. [PMID: 29277393 DOI: 10.1016/j.freeradbiomed.2017.12.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 12/07/2017] [Accepted: 12/17/2017] [Indexed: 11/25/2022]
Abstract
The Nrf2 pathway is a biological defense system against oxidative stress. The pharmacological activation of the Nrf2 pathway is a promising therapy for oxidative stress-related diseases, but it has been challenging to find an Nrf2 activator with acceptable toxicity. To circumvent this problem, we focused on an already approved oral anti-arthritic drug, auranofin that has been reported to have the potential to activate Nrf2. We used a zebrafish model to investigate whether auranofin has protective action against oxidative stress in vivo. Auranofin pre-treatment considerably improved the survival of zebrafish larvae that were challenged with a lethal dose of hydrogen peroxide. This protective effect was not observed in an Nrf2 mutant zebrafish strain, suggesting that the activation of the biological defense against oxidative stress was Nrf2-dependent. Auranofin-induced protection was further tested by challenges with redox-active heavy metals. A clear protective effect was observed against arsenite, a highly redox-reactive toxicant. In addition, this effect was also demonstrated to be Nrf2-dependent based on the analysis of an Nrf2 mutant strain. These results clearly demonstrate the anti-oxidative action of auranofin and encourage the repositioning of auranofin as a drug that improves oxidative stress-related pathology.
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Affiliation(s)
- Yuji Fuse
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba 305-8575, Japan; Japan Society for the Promotion of Science, Japan
| | - Yuka Endo
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan; College of Biological Sciences, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Sho Araoi
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8577, Japan; Life Science Center, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Hiroaki Daitoku
- Life Science Center, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Hiroyuki Suzuki
- Department of Experimental Pathology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Mitsuyasu Kato
- Department of Experimental Pathology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Makoto Kobayashi
- Department of Molecular and Developmental Biology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan.
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113
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Abstract
The tumour suppressor gene TP53 is the most frequently mutated gene in cancer. Wild-type p53 can suppress tumour development by multiple pathways. However, mutation of TP53 and the resultant inactivation of p53 allow evasion of tumour cell death and rapid tumour progression. The high frequency of TP53 mutation in tumours has prompted efforts to restore normal function of mutant p53 and thereby trigger tumour cell death and tumour elimination. Small molecules that can reactivate missense-mutant p53 protein have been identified by different strategies, and two compounds are being tested in clinical trials. Novel approaches for targeting TP53 nonsense mutations are also underway. This Review discusses recent progress in pharmacological reactivation of mutant p53 and highlights problems and promises with these strategies.
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Affiliation(s)
- Vladimir J N Bykov
- Karolinska Institutet, Department of Oncology-Pathology, Cancer Center Karolinska (CCK), SE-171 77 Stockholm, Sweden
| | - Sofi E Eriksson
- Karolinska Institutet, Department of Oncology-Pathology, Cancer Center Karolinska (CCK), SE-171 77 Stockholm, Sweden
| | - Julie Bianchi
- Karolinska Institutet, Department of Oncology-Pathology, Cancer Center Karolinska (CCK), SE-171 77 Stockholm, Sweden
| | - Klas G Wiman
- Karolinska Institutet, Department of Oncology-Pathology, Cancer Center Karolinska (CCK), SE-171 77 Stockholm, Sweden
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114
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Staats S, Wagner AE, Kowalewski B, Rieck FT, Soukup ST, Kulling SE, Rimbach G. Dietary Resveratrol Does Not Affect Life Span, Body Composition, Stress Response, and Longevity-Related Gene Expression in Drosophila melanogaster. Int J Mol Sci 2018; 19:ijms19010223. [PMID: 29324667 PMCID: PMC5796172 DOI: 10.3390/ijms19010223] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/19/2017] [Accepted: 01/05/2018] [Indexed: 12/11/2022] Open
Abstract
In this study, we tested the effect of the stilbene resveratrol on life span, body composition, locomotor activity, stress response, and the expression of genes encoding proteins centrally involved in ageing pathways in the model organism Drosophila melanogaster. Male and female w1118 D. melanogaster were fed diets based on sucrose, corn meal, and yeast. Flies either received a control diet or a diet supplemented with 500 µmol/L resveratrol. Dietary resveratrol did not affect mean, median, and maximal life span of male and female flies. Furthermore, body composition remained largely unchanged following the resveratrol supplementation. Locomotor activity, as determined by the climbing index, was not significantly different between control and resveratrol-supplemented flies. Resveratrol-fed flies did not exhibit an improved stress response towards hydrogen peroxide as compared to controls. Resveratrol did not change mRNA steady levels of antioxidant (catalase, glutathione-S-transferase, NADH dehydrogenase, glutathione peroxidase, superoxide dismutase 2) and longevity-related genes, including sirtuin 2, spargel, and I'm Not Dead Yet. Collectively, present data suggest that resveratrol does not affect life span, body composition, locomotor activity, stress response, and longevity-associated gene expression in w1118 D. melanogaster.
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Affiliation(s)
- Stefanie Staats
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, D-24118 Kiel, Germany.
| | - Anika E Wagner
- Institute of Nutritional Medicine, University of Lübeck, Ratzeburger Allee 160, D-23538 Lübeck, Germany.
| | - Bianca Kowalewski
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, D-24118 Kiel, Germany.
| | - Florian T Rieck
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner Institute, Haid-und-Neu-Strasse 9, D-76131 Karlsruhe, Germany.
| | - Sebastian T Soukup
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner Institute, Haid-und-Neu-Strasse 9, D-76131 Karlsruhe, Germany.
| | - Sabine E Kulling
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner Institute, Haid-und-Neu-Strasse 9, D-76131 Karlsruhe, Germany.
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Hermann-Rodewald-Strasse 6, D-24118 Kiel, Germany.
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115
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Rioja C, Zhurov V, Bruinsma K, Grbic M, Grbic V. Plant-Herbivore Interactions: A Case of an Extreme Generalist, the Two-Spotted Spider Mite Tetranychus urticae. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2017; 30:935-945. [PMID: 28857675 DOI: 10.1094/mpmi-07-17-0168-cr] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Plant-herbivore interactions evolved over long periods of time, resulting in an elaborate arms race between interacting species. While specialist herbivores evolved specific strategies to cope with the defenses of a limited number of hosts, our understanding of how generalist herbivores deal with the defenses of a plethora of diverse host plants is largely unknown. Understanding the interaction between a plant host and a generalist herbivore requires an understanding of the plant's mechanisms aimed at defending itself and the herbivore's mechanisms intended to counteract diverse defenses. In this review, we use the two-spotted spider mite (TSSM), Tetranychus urticae (Koch) as an example of a generalist herbivore, as this chelicerate pest has a staggering number of plant hosts. We first establish that the ability of TSSM to adapt to marginal hosts underlies its polyphagy and agricultural pest status. We then highlight our understanding of direct plant defenses against spider mite herbivory and review recent advances in uncovering mechanisms of spider mite adaptations to them. Finally, we discuss the adaptation process itself, as it allows TSSM to overcome initially effective plant defenses. A high-quality genome sequence and developing genetic tools, coupled with an ease of mite experimental selection to new hosts, make TSSM an outstanding system to study the evolution of host range, mechanisms of pest xenobiotic resistance and plant-herbivore interactions. In addition, knowledge of plant defense mechanisms that affect mite fitness are of practical importance, as it can lead to development of new control strategies against this important agricultural pest. In parallel, understanding mechanisms of mite counter adaptations to these defenses is required to maintain the efficacy of these control strategies in agricultural practices.
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Affiliation(s)
- Cristina Rioja
- 1 Department of Biology, The University of Western Ontario, London, ON, N6A5B7, Canada; and
| | - Vladimir Zhurov
- 1 Department of Biology, The University of Western Ontario, London, ON, N6A5B7, Canada; and
| | - Kristie Bruinsma
- 1 Department of Biology, The University of Western Ontario, London, ON, N6A5B7, Canada; and
| | - Miodrag Grbic
- 1 Department of Biology, The University of Western Ontario, London, ON, N6A5B7, Canada; and
- 2 University of La Rioja, Logrono, 26006, Spain
| | - Vojislava Grbic
- 1 Department of Biology, The University of Western Ontario, London, ON, N6A5B7, Canada; and
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Are Astrocytes the Predominant Cell Type for Activation of Nrf2 in Aging and Neurodegeneration? Antioxidants (Basel) 2017; 6:antiox6030065. [PMID: 28820437 PMCID: PMC5618093 DOI: 10.3390/antiox6030065] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/11/2017] [Accepted: 08/16/2017] [Indexed: 12/29/2022] Open
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2) is a transcription factor that regulates hundreds of antioxidant genes, and is activated in response to oxidative stress. Given that many neurodegenerative diseases including Alzheimer’s disease, Parkinson’s disease, amyotrophic lateral sclerosis, Huntington’s disease and multiple sclerosis are characterised by oxidative stress, Nrf2 is commonly activated in these diseases. Evidence demonstrates that Nrf2 activity is repressed in neurons in vitro, and only cultured astrocytes respond strongly to Nrf2 inducers, leading to the interpretation that Nrf2 signalling is largely restricted to astrocytes. However, Nrf2 activity can be observed in neurons in post-mortem brain tissue and animal models of disease. Thus this interpretation may be false, and a detailed analysis of the cell type expression of Nrf2 in neurodegenerative diseases is required. This review describes the evidence for Nrf2 activation in each cell type in prominent neurodegenerative diseases and normal aging in human brain and animal models of neurodegeneration, the response to pharmacological and genetic modulation of Nrf2, and clinical trials involving Nrf2-modifying drugs.
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117
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Anti-Inflammatory Properties of Brazilian Green Propolis Encapsulated in a γ-Cyclodextrin Complex in Mice Fed a Western-Type Diet. Int J Mol Sci 2017; 18:ijms18061141. [PMID: 28587122 PMCID: PMC5485965 DOI: 10.3390/ijms18061141] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/18/2017] [Indexed: 01/05/2023] Open
Abstract
Ageing is often accompanied by chronic inflammation. A fat- and sugar-rich Western-type diet (WTD) may accelerate the ageing phenotype. Cell culture studies have indicated that artepillin C-containing Brazilian green propolis exhibits anti-inflammatory properties. However, little is known regarding its anti-inflammatory potential in mouse liver in vivo. In this study, female C57BL/6NRj wild-type mice were fed a WTD, a WTD supplemented with Brazilian green propolis supercritical extract (GPSE) encapsulated in γ-cyclodextrin (γCD) or a WTD plus γCD for 10 weeks. GPSE-γCD did not affect the food intake, body weight or body composition of the mice. However, mRNA levels of the tumour necrosis factor α were significantly downregulated (p < 0.05) in these mice compared to those in the WTD-fed controls. Furthermore, the gene expression levels of other pro-inflammatory markers, including serum amyloid P, were significantly (p < 0.001) decreased following GPSE-γCD treatment. GPSE-γCD significantly induced hepatic ferritin gene expression (p < 0.01), which may contribute to its anti-inflammatory properties. Conversely, GPSE-γCD did not affect the biomarkers of endogenous antioxidant defence, including catalase, glutathione peroxidase-4, paraoxonase-1, glutamate cysteine ligase and nuclear factor erythroid 2-related factor-2 (Nrf2). Overall, the present data suggest that dietary GPSE-γCD exhibits anti-inflammatory, but not antioxidant activity in mouse liver in vivo. Thus, GPSE-γCD has the potential to serve as a natural hepatoprotective bioactive compound for dietary-mediated strategies against chronic inflammation.
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