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Xie C, Ma J, Luo M, Wang Y, Lei B. Bioactive poly(salicylic acid)-poly(citric acid) scaffolds improve diabetic wound repair via regulating HIF-1α, Nrf2 and macrophage. J Biomed Mater Res A 2024; 112:1149-1163. [PMID: 38461474 DOI: 10.1002/jbm.a.37696] [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: 09/26/2023] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 03/12/2024]
Abstract
Diabetic wounds environment is over-oxidized, over-inflammatory, leading to difficulties in regenerating blood vessels, and retardation of healing in diabetic wounds. Therefore, diabetic wounds can be treated from the perspective of scavenging oxidative free radicals and reducing the level of inflammation. Herein, we report a bioactive poly(salicylic acid)-poly(citric acid) (FPSa-PCG) hydrogel for diabetic wound repair. The FPSa-PCG hydrogel shows abilities of antioxidation, anti-inflammation, and regulation of macrophage phenotype. The FPSa-PCG hydrogel showed good biocompatibility, and obtain the abilities of promotion of macrophages migration, reduction of ROS generation, suppression of the M1-type macrophage polarization. FPSa and PCG could synergistically enhance the angiogenesis through upregulating the mRNA expression of HIF1Α, VEGF, and CD31 in endothelial cells and reduce the ROS level of macrophages through upregulating the mRNA expression of Nrf2. The in vivo diabetic wound model confirmed the promoting effect of FPSa-PCG hydrogel on wound closure in diabetes. The further studies found that FPSa-PCG hydrogel could induce the CD31 protein expression in the subcutaneous tissue and inhibit the TNF-a protein expression. This work shows that the simple composition FPSa-PCG hydrogel has a promising therapeutic potential in the treatment of diabetic wounds.
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Affiliation(s)
- Chenxi Xie
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Junping Ma
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Meng Luo
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Yidan Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Bo Lei
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, People's Republic of China
- Department of Orthopedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, People's Republic of China
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2
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Design and characterization of a heterobifunctional degrader of KEAP1. Redox Biol 2022; 59:102552. [PMID: 36473314 PMCID: PMC9720105 DOI: 10.1016/j.redox.2022.102552] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 11/28/2022] Open
Abstract
The Kelch-like ECH-associated protein 1 (KEAP1) - nuclear factor erythroid 2-related factor 2 (NRF2) signaling pathway senses reactive oxygen species and regulates cellular oxidative stress. Inhibiting KEAP1 to activate the NRF2 antioxidant response has been proposed as a promising strategy to treat chronic diseases caused by oxidative stress. Here, we developed a proteolysis targeting chimera (PROTAC) that depletes KEAP1 from cells through the ubiquitin-proteasome pathway. A previously developed KEAP1 inhibitor and thalidomide were incorporated in the heterobifunctional design of the PROTAC as ligands for KEAP1 and CRBN recruitment, respectively. Optimization of the chemical composition and linker length resulted in PROTAC 14 which exhibited potent KEAP1 degradation with low nanomolar DC50 in HEK293T (11 nM) and BEAS-2B (<1 nM) cell lines. Furthermore, PROTAC 14 increased the expression of NRF2 regulated antioxidant proteins and prevented cell death induced by reactive oxygen species. Together, these results established a blueprint for further development of KEAP1-targeted heterobifunctional degraders and will facilitate the study of the biological consequences of KEAP1 removal from cells. This approach represents an alternative therapeutic strategy to existing treatments for diseases caused by oxidative stress.
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3
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Liu S, Pi J, Zhang Q. Signal amplification in the KEAP1-NRF2-ARE antioxidant response pathway. Redox Biol 2022; 54:102389. [PMID: 35792437 PMCID: PMC9287733 DOI: 10.1016/j.redox.2022.102389] [Citation(s) in RCA: 92] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 06/26/2022] [Accepted: 06/27/2022] [Indexed: 12/19/2022] Open
Abstract
The KEAP1-NRF2-ARE signaling pathway plays a central role in mediating the adaptive cellular stress response to oxidative and electrophilic chemicals. This canonical pathway has been extensively studied and reviewed in the past two decades, but rarely was it looked at from a quantitative signaling perspective. Signal amplification, i.e., ultrasensitivity, is crucially important for robust induction of antioxidant genes to appropriate levels that can adequately counteract the stresses. In this review article, we examined a number of well-known molecular events in the KEAP1-NRF2-ARE pathway from a quantitative perspective with a focus on how signal amplification can be achieved. We illustrated, by using a series of mathematical models, that redox-regulated protein sequestration, stabilization, translation, nuclear trafficking, DNA promoter binding, and transcriptional induction - which are embedded in the molecular network comprising KEAP1, NRF2, sMaf, p62, and BACH1 - may generate highly ultrasensitive NRF2 activation and antioxidant gene induction. The emergence and degree of ultrasensitivity depend on the strengths of protein-protein and protein-DNA interaction and protein abundances. A unique, quantitative understanding of signal amplification in the KEAP1-NRF2-ARE pathway will help to identify sensitive targets for the prevention and therapeutics of oxidative stress-related diseases and develop quantitative adverse outcome pathway models to facilitate the health risk assessment of oxidative chemicals.
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Affiliation(s)
- Shengnan Liu
- Program of Environmental Toxicology, School of Public Health, China Medical University, Shenyang, 110122, China
| | - Jingbo Pi
- Program of Environmental Toxicology, School of Public Health, China Medical University, Shenyang, 110122, China.
| | - Qiang Zhang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, 30322, USA.
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4
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Musacchio T, Yin J, Kremer F, Koprich JB, Brotchie JM, Volkmann J, Ip CW. Temporal, spatial and molecular pattern of dopaminergic neurodegeneration in the AAV-A53T α-synuclein rat model of Parkinson's disease. Behav Brain Res 2022; 432:113968. [PMID: 35738338 DOI: 10.1016/j.bbr.2022.113968] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/07/2022] [Accepted: 06/12/2022] [Indexed: 11/18/2022]
Abstract
Degeneration of the nigrostriatal tract is a neuropathological hallmark of Parkinson's disease (PD). A differential intraneuronal vulnerability of dopaminergic neurons within the substantia nigra (SN) has been suggested, starting as an axonopathy followed by neuronal cell loss that is accompanied with motor deficits. To date, there is no therapy available to delay or halt this neurodegeneration. Nuclear factor (erythroid-derived 2)-like-2 factor (Nrf2) and histone deacetylase 1 (HDAC1) are crucial molecular regulators that undergo nucleo-cytoplasmic shuttling and are involved in regulation of axonal and perikarya degeneration of neurons under various pathologic conditions. We here aimed to analyze the time course of dopaminergic neurodegeneration in an AAV PD rat model overexpressing human mutated A53T α-synuclein (haSyn), differentially correlate striatal terminal and SN perikarya loss with behavioral deficits and investigate if nucleo-cytoplasmic Nrf2 and HDAC1 expression are altered in dopaminergic perikarya of the haSyn PD rat model. We observed impaired motor performance in haSyn PD rats assessed by the single pellet reaching task at four- and six-weeks post AAV injection (P < 0.05 each). However, only striatal terminal loss correlated significantly with motor deficits in haSyn PD rats, indicating that parkinsonian motor features reflect the striatal dopaminergic denervation, but cannot be taken as an indirect measure of neurodegeneration per se. Immunofluorescence staining demonstrated an upregulation of HDAC1 in the dopaminergic cell nucleus (P < 0.05) while no changes were observed for Nrf2. These data suggest a critical functional role of the axonopathy on motor behavior in haSyn PD rats and mechanistically point towards an impaired nucleo-cytoplasmic translocation of HDAC1 and thus a potential role of disturbed histone acetylation in neurodegeneration.
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Affiliation(s)
- Thomas Musacchio
- Department of Neurology, University Hospital of Würzburg, Department of Neurology, Josef-Schneider-Strasse 11, 97080 Würzburg, Germany
| | - Jing Yin
- Department of Neurology, University Hospital of Würzburg, Department of Neurology, Josef-Schneider-Strasse 11, 97080 Würzburg, Germany
| | - Fabian Kremer
- Department of Neurology, University Hospital of Würzburg, Department of Neurology, Josef-Schneider-Strasse 11, 97080 Würzburg, Germany
| | - James B Koprich
- The Krembil Research Institute, Toronto Western Hospital, University Health Network, 60 Leonard Avenue, 8KD402, Toronto, Ontario M5T 2S8, Canada; Atuka Inc., First Canadian Place, 100 King Street West, Toronto, Ontario M5X 1C9, Canada
| | - Jonathan M Brotchie
- The Krembil Research Institute, Toronto Western Hospital, University Health Network, 60 Leonard Avenue, 8KD402, Toronto, Ontario M5T 2S8, Canada; Atuka Inc., First Canadian Place, 100 King Street West, Toronto, Ontario M5X 1C9, Canada
| | - Jens Volkmann
- Department of Neurology, University Hospital of Würzburg, Department of Neurology, Josef-Schneider-Strasse 11, 97080 Würzburg, Germany
| | - Chi Wang Ip
- Department of Neurology, University Hospital of Würzburg, Department of Neurology, Josef-Schneider-Strasse 11, 97080 Würzburg, Germany.
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5
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Gupta KB, Dhiman M, Mantha AK. Gliadin induced oxidative stress and altered cellular responses in human intestinal cells: An in‐vitro study to understand the cross‐talk between the transcription factor Nrf‐2 and multifunctional APE1 enzyme. J Biochem Mol Toxicol 2022; 36:e23096. [DOI: 10.1002/jbt.23096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/31/2022] [Accepted: 04/25/2022] [Indexed: 12/17/2022]
Affiliation(s)
- Kunj Bihari Gupta
- Department of Microbiology, School of Biological Sciences Central University of Punjab Bathinda Punjab India
| | - Monisha Dhiman
- Department of Microbiology, School of Biological Sciences Central University of Punjab Bathinda Punjab India
| | - Anil Kumar Mantha
- Department of Zoology, School of Biological Sciences Central University of Punjab Bathinda Punjab India
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6
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Silic-Benussi M, Sharova E, Ciccarese F, Cavallari I, Raimondi V, Urso L, Corradin A, Kotler H, Scattolin G, Buldini B, Francescato S, Basso G, Minuzzo SA, Indraccolo S, D'Agostino DM, Ciminale V. mTOR inhibition downregulates glucose-6-phosphate dehydrogenase and induces ROS-dependent death in T-cell acute lymphoblastic leukemia cells. Redox Biol 2022; 51:102268. [PMID: 35248829 PMCID: PMC8899410 DOI: 10.1016/j.redox.2022.102268] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/11/2022] [Indexed: 12/15/2022] Open
Affiliation(s)
| | | | | | | | - Vittoria Raimondi
- Department of Surgery, Oncology, and Gastroenterology, University of Padova, Padova, Italy
| | - Loredana Urso
- Veneto Institute of Oncology IOV - IRCCS, Padova, Italy; Department of Surgery, Oncology, and Gastroenterology, University of Padova, Padova, Italy
| | - Alberto Corradin
- Istituto Tecnico Industriale Statale "Alessandro Rossi", Vicenza, Italy
| | - Harel Kotler
- Department of Surgery, Oncology, and Gastroenterology, University of Padova, Padova, Italy
| | - Gloria Scattolin
- Department of Surgery, Oncology, and Gastroenterology, University of Padova, Padova, Italy
| | - Barbara Buldini
- Pediatric Hemato Oncology, Maternal and Child Health Department, University of Padova, Padova, Italy
| | - Samuela Francescato
- Pediatric Hemato Oncology, Maternal and Child Health Department, University of Padova, Padova, Italy
| | - Giuseppe Basso
- Pediatric Hemato Oncology, Maternal and Child Health Department, University of Padova, Padova, Italy; Italian Institute for Genomic Medicine, Turin, Italy
| | - Sonia A Minuzzo
- Department of Surgery, Oncology, and Gastroenterology, University of Padova, Padova, Italy
| | - Stefano Indraccolo
- Veneto Institute of Oncology IOV - IRCCS, Padova, Italy; Department of Surgery, Oncology, and Gastroenterology, University of Padova, Padova, Italy
| | - Donna M D'Agostino
- Veneto Institute of Oncology IOV - IRCCS, Padova, Italy; Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Vincenzo Ciminale
- Veneto Institute of Oncology IOV - IRCCS, Padova, Italy; Department of Surgery, Oncology, and Gastroenterology, University of Padova, Padova, Italy.
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7
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Satpathy S, Krug K, Jean Beltran PM, Savage SR, Petralia F, Kumar-Sinha C, Dou Y, Reva B, Kane MH, Avanessian SC, Vasaikar SV, Krek A, Lei JT, Jaehnig EJ, Omelchenko T, Geffen Y, Bergstrom EJ, Stathias V, Christianson KE, Heiman DI, Cieslik MP, Cao S, Song X, Ji J, Liu W, Li K, Wen B, Li Y, Gümüş ZH, Selvan ME, Soundararajan R, Visal TH, Raso MG, Parra ER, Babur Ö, Vats P, Anand S, Schraink T, Cornwell M, Rodrigues FM, Zhu H, Mo CK, Zhang Y, da Veiga Leprevost F, Huang C, Chinnaiyan AM, Wyczalkowski MA, Omenn GS, Newton CJ, Schurer S, Ruggles KV, Fenyö D, Jewell SD, Thiagarajan M, Mesri M, Rodriguez H, Mani SA, Udeshi ND, Getz G, Suh J, Li QK, Hostetter G, Paik PK, Dhanasekaran SM, Govindan R, Ding L, Robles AI, Clauser KR, Nesvizhskii AI, Wang P, Carr SA, Zhang B, Mani DR, Gillette MA. A proteogenomic portrait of lung squamous cell carcinoma. Cell 2021; 184:4348-4371.e40. [PMID: 34358469 PMCID: PMC8475722 DOI: 10.1016/j.cell.2021.07.016] [Citation(s) in RCA: 151] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 04/26/2021] [Accepted: 07/12/2021] [Indexed: 02/07/2023]
Abstract
Lung squamous cell carcinoma (LSCC) remains a leading cause of cancer death with few therapeutic options. We characterized the proteogenomic landscape of LSCC, providing a deeper exposition of LSCC biology with potential therapeutic implications. We identify NSD3 as an alternative driver in FGFR1-amplified tumors and low-p63 tumors overexpressing the therapeutic target survivin. SOX2 is considered undruggable, but our analyses provide rationale for exploring chromatin modifiers such as LSD1 and EZH2 to target SOX2-overexpressing tumors. Our data support complex regulation of metabolic pathways by crosstalk between post-translational modifications including ubiquitylation. Numerous immune-related proteogenomic observations suggest directions for further investigation. Proteogenomic dissection of CDKN2A mutations argue for more nuanced assessment of RB1 protein expression and phosphorylation before declaring CDK4/6 inhibition unsuccessful. Finally, triangulation between LSCC, LUAD, and HNSCC identified both unique and common therapeutic vulnerabilities. These observations and proteogenomics data resources may guide research into the biology and treatment of LSCC.
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Affiliation(s)
- Shankha Satpathy
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA.
| | - Karsten Krug
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Pierre M Jean Beltran
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Sara R Savage
- Lester and Sue Smith Breast Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Francesca Petralia
- Department of Genetics and Genomic Sciences, Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | | | - Yongchao Dou
- Lester and Sue Smith Breast Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Boris Reva
- Department of Genetics and Genomic Sciences, Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - M Harry Kane
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Shayan C Avanessian
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Suhas V Vasaikar
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Azra Krek
- Department of Genetics and Genomic Sciences, Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jonathan T Lei
- Lester and Sue Smith Breast Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Eric J Jaehnig
- Lester and Sue Smith Breast Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Yifat Geffen
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Erik J Bergstrom
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Vasileios Stathias
- Sylvester Comprehensive Cancer Center and Department of Molecular and Cellular Pharmacology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Karen E Christianson
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - David I Heiman
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Marcin P Cieslik
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Song Cao
- Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Xiaoyu Song
- Department of Population Health Science and Policy, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jiayi Ji
- Department of Population Health Science and Policy, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Wenke Liu
- Institute for Systems Genetics and Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Kai Li
- Lester and Sue Smith Breast Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Bo Wen
- Lester and Sue Smith Breast Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yize Li
- Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Zeynep H Gümüş
- Department of Genetics and Genomic Sciences, Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Myvizhi Esai Selvan
- Department of Genetics and Genomic Sciences, Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Rama Soundararajan
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Tanvi H Visal
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Maria G Raso
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Edwin Roger Parra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Özgün Babur
- Computer Science Department, University of Massachusetts Boston, Boston, MA 02125, USA
| | - Pankaj Vats
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Shankara Anand
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Tobias Schraink
- Institute for Systems Genetics and Department of Medicine, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - MacIntosh Cornwell
- Institute for Systems Genetics and Department of Medicine, NYU Grossman School of Medicine, New York, NY 10016, USA
| | | | - Houxiang Zhu
- Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Chia-Kuei Mo
- Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Yuping Zhang
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Chen Huang
- Lester and Sue Smith Breast Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Arul M Chinnaiyan
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Gilbert S Omenn
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Stephan Schurer
- Sylvester Comprehensive Cancer Center and Department of Molecular and Cellular Pharmacology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Kelly V Ruggles
- Institute for Systems Genetics and Department of Medicine, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - David Fenyö
- Institute for Systems Genetics and Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Scott D Jewell
- Van Andel Research Institute, Grand Rapids, MI 49503, USA
| | - Mathangi Thiagarajan
- Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Mehdi Mesri
- Office of Cancer Clinical Proteomics Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Henry Rodriguez
- Office of Cancer Clinical Proteomics Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Sendurai A Mani
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Namrata D Udeshi
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Gad Getz
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - James Suh
- Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Qing Kay Li
- Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Medical Institutions, Baltimore, MD 21224, USA
| | | | - Paul K Paik
- Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | | | - Ramaswamy Govindan
- Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Li Ding
- Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Ana I Robles
- Office of Cancer Clinical Proteomics Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Karl R Clauser
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Alexey I Nesvizhskii
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Pei Wang
- Department of Genetics and Genomic Sciences, Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Steven A Carr
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA.
| | - Bing Zhang
- Lester and Sue Smith Breast Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.
| | - D R Mani
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA.
| | - Michael A Gillette
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA; Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston, MA 02115, USA.
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8
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Gao Y, Yuan D, Gai L, Wu X, Shi Y, He Y, Liu C, Zhang C, Zhou G, Yuan C. Saponins from Panax japonicus ameliorate age-related renal fibrosis by inhibition of inflammation mediated by NF-κB and TGF-β1/Smad signaling and suppression of oxidative stress via activation of Nrf2-ARE signaling. J Ginseng Res 2020; 45:408-419. [PMID: 34025134 PMCID: PMC8134850 DOI: 10.1016/j.jgr.2020.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 07/22/2020] [Accepted: 08/26/2020] [Indexed: 12/23/2022] Open
Abstract
Background The decreased renal function is known to be associated with biological aging, of which the main pathological features are chronic inflammation and renal interstitial fibrosis. In previous studies, we reported that total saponins from Panax japonicus (SPJs) can availably protect acute myocardial ischemia. We proposed that SPJs might have similar protective effects for aging-associated renal interstitial fibrosis. Thus, in the present study, we evaluated the overall effect of SPJs on renal fibrosis. Methods Sprague-Dawley (SD) aging rats were given SPJs by gavage beginning from 18 months old, at 10 mg/kg/d and 60 mg/kg/d, up to 24 months old. After the experiment, changes in morphology, function and fibrosis of their kidneys were detected. The levels of serum uric acid (UA), β2-microglobulin (β2-MG) and cystatin C (Cys C) were assayed with ELISA kits. The levels of extracellular matrix (ECM), matrix metalloproteinases (MMPs), tissue inhibitors of metalloproteinases (TIMPs), inflammatory factors and changes of oxidative stress parameters were examined. Results After SPJs treatment, SD rats showed significantly histopathological changes in kidneys accompanied by decreased renal fibrosis and increased renal function; As compared with those in 3-month group, the levels of serum UA, Cys C and β2-MG in 24-month group were significantly increased (p < 0.05). Compared with those in the 24-month group, the levels of serum UA, Cys C and β2-MG in the SPJ-H group were significantly decreased. While ECM was reduced and the levels of MMP-2 and MMP-9 were increased, the levels of TIMP-1, TIMP-2 and transforming growth factor-β1 (TGF-β1)/Smad signaling were decreased; the expression level of phosphorylated nuclear factor kappa-B (NF-κB) was down-regulated with reduced inflammatory factors; meanwhile, the expression of nuclear factor erythroid 2-related factor 2-antioxidant response element (Nrf2-ARE) signaling was aggrandized. Conclusion These results suggest that SPJs treatment can improve age-associated renal fibrosis by inhibiting TGF-β1/Smad, NFκB signaling pathways and activating Nrf2-ARE signaling pathways and that SPJs can be a potentially valuable anti-renal fibrosis drug.
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Key Words
- ARE, antioxidant response element
- Aging
- COX2, cyclooxygenase-2
- Cys C, cystatin C
- ECM, extracellular matrix
- HO-1, human heme oxygenase 1
- IL-6, interleukin-6
- IκB, inhibitor of NF-κB
- LPO, lipid peroxides
- MCP-1, monocyte chemoattractant protein-1
- MMPs, matrix metalloproteinases
- NF-κB, nuclear factor kappa-B
- NQO1, recombinant NADH dehydrogenase quinone 1
- Nrf2, nuclear factor erythroid 2-related factor 2
- Nrf2-ARE signaling pathways
- PJ, Panax japonicas
- Renal fibrosis
- SD, Sprague-Dawley
- SPJ-H, high-dose of SPJ
- SPJ-L, low-dose of SPJ
- SPJs, saponins from panax japonicus
- TGF-β1, tumor growth factor-β1
- TGF-β1/Smad
- TIMPs, tissue inhibitors of metalloproteinases
- TNF-α, tumor necrosis factor-α
- Total saponins of panax japonicus
- UA, uric acid
- α-SMA, α-smooth muscle aorta
- β2-MG, β2-microglobulin
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Affiliation(s)
- Yan Gao
- College of Medical Science, China Three Gorges University, Yichang, China
| | - Ding Yuan
- College of Medical Science, China Three Gorges University, Yichang, China
| | - Liyue Gai
- College of Medical Science, China Three Gorges University, Yichang, China
| | - Xuelian Wu
- College of Medical Science, China Three Gorges University, Yichang, China
| | - Yue Shi
- College of Medical Science, China Three Gorges University, Yichang, China
| | - Yumin He
- College of Medical Science, China Three Gorges University, Yichang, China
| | - Chaoqi Liu
- College of Medical Science, China Three Gorges University, Yichang, China
| | - Changcheng Zhang
- College of Medical Science, China Three Gorges University, Yichang, China
| | - Gang Zhou
- College of Traditional Chinese Medicine, China Three Gorges University, Yichang, China
| | - Chengfu Yuan
- College of Medical Science, China Three Gorges University, Yichang, China.,Third-Grade Pharmacological Laboratory on Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang, China
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9
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Endo H, Owada S, Inagaki Y, Shida Y, Tatemichi M. Metabolic reprogramming sustains cancer cell survival following extracellular matrix detachment. Redox Biol 2020; 36:101643. [PMID: 32863227 PMCID: PMC7371916 DOI: 10.1016/j.redox.2020.101643] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/03/2020] [Accepted: 07/08/2020] [Indexed: 12/13/2022] Open
Abstract
Epithelial cells require attachment to a support, such as the extracellular matrix, for survival. During cancer progression and metastasis, cancerous epithelial cells must overcome their dependence on adhesion signals. Dependence on glucose metabolism is a hallmark of cancer cells, but the nutrient requirements of cancer cells under anchorage-deficient conditions remain uncharacterized. Here, we report that cancer cells prioritize glutamine-derived tricarboxylic acid cycle energy metabolism over glycolysis to sustain anchorage-independent survival. Moreover, glutamine-dependent metabolic reprogramming is required not only to maintain ATP levels but also to suppress excessive oxidative stress through interaction with cystine. Mechanistically, AMPK, a central regulator of cellular responses to metabolic stress, participates in the induction of the expression of ASCT2, a glutamine transporter, and enhances glutamine consumption. Most interestingly, AMPK activation induces Nrf2 and its target proteins, allowing cancer cells to maintain energy homeostasis and redox status through glutaminolysis. Treatment with an integrin inhibitor was used to mimic the alterations in cell morphology and metabolic reprogramming caused by detachment. Under these conditions, cells were vulnerable to glutamine starvation or glutamine metabolism inhibitors. The observed preference for glutamine over glucose was more pronounced in aggressive cancer cell lines, and treatment with the glutaminase inhibitor, CB839, and cystine transporter inhibitor, sulfasalazine, caused strong cytotoxicity. Our data clearly show that anchorage-independent survival of cancer cells is supported mainly by glutaminolysis via the AMPK-Nrf2 signal axis. The discovery of new vulnerabilities along this route could help slow or prevent cancer progression. AMPK-Nrf2 signaling is crucial in metabolic reprogramming during cancer progression. Cancer metabolism does not preeminently depend on glycolysis. Glutaminolysis mainly supports anchorage-independent cancer cell survival.
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Affiliation(s)
- Hitoshi Endo
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
| | - Satoshi Owada
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
| | - Yutaka Inagaki
- Center for Matrix Biology and Medicine, Department of Innovative Medical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
| | - Yukari Shida
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
| | - Masayuki Tatemichi
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
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10
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Levings D, Shaw KE, Lacher SE. Genomic resources for dissecting the role of non-protein coding variation in gene-environment interactions. Toxicology 2020; 441:152505. [PMID: 32450112 DOI: 10.1016/j.tox.2020.152505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 12/27/2022]
Abstract
The majority of single nucleotide variants (SNVs) identified in Genome Wide Association Studies (GWAS) fall within non-protein coding DNA and have the potential to alter gene expression. Non-protein coding DNA can control gene expression by acting as transcription factor (TF) binding sites or by regulating the organization of DNA into chromatin. SNVs in non-coding DNA sequences can disrupt TF binding and chromatin structure and this can result in pathology. Further, environmental health studies have shown that exposure to xenobiotics can disrupt the ability of TFs to regulate entire gene networks and result in pathology. However, there is a large amount of interindividual variability in exposure-linked health outcomes. One explanation for this heterogeneity is that genetic variation and exposure combine to disrupt gene regulation, and this eventually manifests in disease. Many resources exist that annotate common variants from GWAS and combine them with conservation, functional genomics, and TF binding data. These annotation tools provide clues regarding the biological implications of an SNV, as well as lead to the generation of hypotheses regarding potentially disrupted target genes, epigenetic markers, pathways, and cell types. Collectively this information can be used to predict how SNVs can alter an individual's response to exposure and disease risk. A basic understanding of the regulatory information contained within non-protein coding DNA is needed to predict the biological consequences of SNVs, and to determine how these SNVs impact exposure-related disease. We hope that this review will aid in the characterization of disease-associated genetic variation in the non-protein coding genome.
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Affiliation(s)
- Daniel Levings
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth Campus, 1035 University Drive, Duluth, MN, 55812, USA
| | - Kirsten E Shaw
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth Campus, 1035 University Drive, Duluth, MN, 55812, USA
| | - Sarah E Lacher
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth Campus, 1035 University Drive, Duluth, MN, 55812, USA.
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11
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Aivazidis S, Anderson CC, Roede JR. Toxicant-mediated redox control of proteostasis in neurodegeneration. CURRENT OPINION IN TOXICOLOGY 2018; 13:22-34. [PMID: 31602419 DOI: 10.1016/j.cotox.2018.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Disruption in redox signaling and control of cellular processes has emerged as a key player in many pathologies including neurodegeneration. As protein aggregations are a common hallmark of several neuronal pathologies, a firm understanding of the interplay between redox signaling, oxidative and free radical stress, and proteinopathies is required to sort out the complex mechanisms in these diseases. Fortunately, models of toxicant-induced neurodegeneration can be utilized to evaluate and report mechanistic alterations in the proteostasis network (PN). The epidemiological links between environmental toxicants and neurological disease gives further credence into characterizing the toxicant-mediated PN disruptions observed in these conditions. Reviewed here are examples of mechanistic interaction between oxidative or free radical stress and PN alterations. Additionally, investigations into toxicant-mediated PN disruptions, specifically focusing on environmental metals and pesticides, are discussed. Finally, we emphasize the need to distinguish whether the presence of protein aggregations are contributory to phenotypes related to neurodegeneration, or if they are a byproduct of PN deficiencies.
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Affiliation(s)
- Stefanos Aivazidis
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Colin C Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - James R Roede
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
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12
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Hu LL, Zhang KQ, Tian T, Zhang H, Fu Q. Probucol improves erectile function via Activation of Nrf2 and coordinates the HO-1 / DDAH / PPAR-γ/ eNOS pathways in streptozotocin-induced diabetic rats. Biochem Biophys Res Commun 2018; 507:9-14. [PMID: 30454888 DOI: 10.1016/j.bbrc.2018.10.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 10/05/2018] [Indexed: 01/20/2023]
Abstract
BACKGROUND Diabetic erectile dysfunction (DMED) is mainly attributed to oxidative stress, and Nrf2 plays an important role in cellular antioxidation and regulates NO production in the vascular endothelium. Probucol maintains endothelial function through its antioxidant activity. This study investigated the efficacy and mechanism of probucol in improving erectile function in streptozotocin-induced diabetic rats. METHODS In our study, thirty 12-week-old Sprague-Dawley male rats were fasted for 12 h. All rats received a 1-time injection of intraperitoneal streptozotocin(60 mg/kg) or vehicle. After 72 h, STZ-treated rats (with random blood glucose concentrations consistently greater than 16.7 mmol/L) were considered diabetic. The diabetic rats were randomly assigned into 2 groups and treated with daily gavage feedings of probucol at doses of 0 and 500 mg/kg for 12 weeks. A positive control group underwent intraperitoneal injection of normal saline followed by daily gavage of saline solution. Erectile function was assessed by electrical stimulation of the cavernous nerves with real-time intracavernous pressure measurement. After euthanasia, penile tissue was investigated using immunohistochemistry, Western blot, and ELISA to assess the proteins of Nrf2/HO-1/DDAH/PPAR-γ/eNOS pathways. RESULTS After treatment, the rats in the probucol group presented significantly improved erectile function (P < 0.05) than that of the diabetic group without probucol treatment (DM). Also, protein expression of Nrf2, DDAH, PPAR-γ, HO-1 and eNOS was significantly higher than that of the DM group (P < 0.05). CGMP concentrations and SOD concentrations of probucol-treated rats were higher than those of DM group (P < 0.05). The MDA levels and ADMA levels were significantly lower than those of DM group rats (P < 0.05). CONCLUSION Probucol can improve erectile function via activation of Nrf2, which coordinates the HO-1/DDAH/PPAR-γ/eNOS pathways in streptozotocin-induced diabetic rats.
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Affiliation(s)
- Liang-Liang Hu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, People's Republic of China; Department of Urology, Shandong Zaozhuang Municipal Hospital, Zaozhuang, 277000, People's Republic of China
| | - Ke-Qin Zhang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, People's Republic of China
| | - Tao Tian
- Department of Urology, Shandong Zaozhuang Municipal Hospital, Zaozhuang, 277000, People's Republic of China
| | - Hui Zhang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, People's Republic of China
| | - Qiang Fu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, People's Republic of China.
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13
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Levings DC, Wang X, Kohlhase D, Bell DA, Slattery M. A distinct class of antioxidant response elements is consistently activated in tumors with NRF2 mutations. Redox Biol 2018; 19:235-249. [PMID: 30195190 PMCID: PMC6128101 DOI: 10.1016/j.redox.2018.07.026] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/23/2018] [Accepted: 07/31/2018] [Indexed: 12/17/2022] Open
Abstract
NRF2 is a redox-responsive transcription factor that regulates expression of cytoprotective genes via its interaction with DNA sequences known as antioxidant response elements (AREs). NRF2 activity is induced by oxidative stress, but oxidative stress is not the only context in which NRF2 can be activated. Mutations that disrupt the interaction between NRF2 and KEAP1, an inhibitor of NRF2, lead to NRF2 hyperactivation and promote oncogenesis. The mechanisms underlying NRF2's oncogenic properties remain unclear, but likely involve aberrant expression of select NRF2 target genes. We tested this possibility using an integrative genomics approach to get a precise view of the direct NRF2 target genes dysregulated in tumors with NRF2 hyperactivating mutations. This approach revealed a core set of 32 direct NRF2 targets that are consistently upregulated in NRF2 hyperactivated tumors. This set of NRF2 "cancer target genes" includes canonical redox-related NRF2 targets, as well as target genes that have not been previously linked to NRF2 activation. Importantly, NRF2-driven upregulation of this gene set is largely independent of the organ system where the tumor developed. One key distinguishing feature of these NRF2 cancer target genes is that they are regulated by high affinity AREs that fall within genomic regions possessing a ubiquitously permissive chromatin signature. This implies that these NRF2 cancer target genes are responsive to oncogenic NRF2 in most tissues because they lack the regulatory constraints that restrict expression of most other NRF2 target genes. This NRF2 cancer target gene set also serves as a reliable proxy for NRF2 activity, and high NRF2 activity is associated with significant decreases in survival in multiple cancer types. Overall, the pervasive upregulation of these NRF2 cancer targets across multiple cancers, and their association with negative outcomes, suggests that these will be central to dissecting the functional implications of NRF2 hyperactivation in several cancer contexts.
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Affiliation(s)
- Daniel C Levings
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA
| | - Xuting Wang
- Environmental Epigenomics and Disease Group, Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
| | - Derek Kohlhase
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA
| | - Douglas A Bell
- Environmental Epigenomics and Disease Group, Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
| | - Matthew Slattery
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA.
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14
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Lacher SE, Levings DC, Freeman S, Slattery M. Identification of a functional antioxidant response element at the HIF1A locus. Redox Biol 2018; 19:401-411. [PMID: 30241031 PMCID: PMC6146589 DOI: 10.1016/j.redox.2018.08.014] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/21/2018] [Accepted: 08/22/2018] [Indexed: 12/12/2022] Open
Abstract
Reactive oxygen species (ROS), which are a byproduct of oxidative metabolism, serve as signaling molecules in a number of physiological settings. However, if their levels are not tightly maintained, excess ROS lead to potentially cytotoxic oxidative stress. Accordingly, several transcriptional regulatory networks have evolved to include components that are highly ROS-responsive. Depending on the context, these regulatory networks can leverage ROS to respond to nutrient conditions, metabolism, or other physiological signals, or to respond to oxidative stress. However, ROS signaling is complex, so regulatory interactions between various ROS-responsive transcription factors are still being mapped out. Here we show that the transcription factor NRF2, a key regulator of the adaptive response to oxidative stress, directly regulates expression of HIF1A, which encodes HIF1α, a key transcriptional regulator of the adaptive response to hypoxia. We used an integrative genomics approach to identify HIF1A as a ROS-responsive transcript and we found an NRF2-bound antioxidant response element (ARE) approximately 30 kilobases upstream of HIF1A. This ARE sequence is deeply conserved, and we verified that it is directly bound and activated by NRF2. In addition, we found that HIF1A is upregulated in breast and bladder tumors with high NRF2 activity. Taken together, our results demonstrate that NRF2 targets a functional ARE at the HIF1A locus, and reveal a direct regulatory connection between two important oxygen responsive transcription factors.
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Affiliation(s)
- Sarah E Lacher
- Department of Biomedical Sciences, University of Minnesota Medical School, 1035 University Drive, SMed 255, Duluth, MN 55812, United States
| | - Daniel C Levings
- Department of Biomedical Sciences, University of Minnesota Medical School, 1035 University Drive, SMed 255, Duluth, MN 55812, United States
| | - Samuel Freeman
- Department of Biomedical Sciences, University of Minnesota Medical School, 1035 University Drive, SMed 255, Duluth, MN 55812, United States
| | - Matthew Slattery
- Department of Biomedical Sciences, University of Minnesota Medical School, 1035 University Drive, SMed 255, Duluth, MN 55812, United States.
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15
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Jena KK, Kolapalli SP, Mehto S, Nath P, Das B, Sahoo PK, Ahad A, Syed GH, Raghav SK, Senapati S, Chauhan S, Chauhan S. TRIM16 controls assembly and degradation of protein aggregates by modulating the p62-NRF2 axis and autophagy. EMBO J 2018; 37:embj.201798358. [PMID: 30143514 PMCID: PMC6138442 DOI: 10.15252/embj.201798358] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 07/18/2018] [Accepted: 07/26/2018] [Indexed: 12/20/2022] Open
Abstract
Sequestration of protein aggregates in inclusion bodies and their subsequent degradation prevents proteostasis imbalance, cytotoxicity, and proteinopathies. The underlying molecular mechanisms controlling the turnover of protein aggregates are mostly uncharacterized. Herein, we show that a TRIM family protein, TRIM16, governs the process of stress-induced biogenesis and degradation of protein aggregates. TRIM16 facilitates protein aggregate formation by positively regulating the p62-NRF2 axis. We show that TRIM16 is an integral part of the p62-KEAP1-NRF2 complex and utilizes multiple mechanisms for stabilizing NRF2. Under oxidative and proteotoxic stress conditions, TRIM16 activates ubiquitin pathway genes and p62 via NRF2, leading to ubiquitination of misfolded proteins and formation of protein aggregates. We further show that TRIM16 acts as a scaffold protein and, by interacting with p62, ULK1, ATG16L1, and LC3B, facilitates autophagic degradation of protein aggregates. Thus, TRIM16 streamlines the process of stress-induced aggregate clearance and protects cells against oxidative/proteotoxic stress-induced toxicity in vitro and in vivo Taken together, this work identifies a new mechanism of protein aggregate turnover, which could be relevant in protein aggregation-associated diseases such as neurodegeneration.
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Affiliation(s)
- Kautilya Kumar Jena
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India.,School of Biotechnology, KIIT University, Bhubaneswar, India
| | | | - Subhash Mehto
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Parej Nath
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India.,School of Biotechnology, KIIT University, Bhubaneswar, India
| | - Biswajit Das
- Tumor Microenvironment and Animal Models, Institute of Life Sciences, Bhubaneswar, India.,Manipal University, Manipal, India
| | - Pradyumna Kumar Sahoo
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Abdul Ahad
- Immuno-Genomics and Systems Biology, Institute of Life Sciences, Bhubaneswar, India
| | - Gulam Hussain Syed
- Molecular Virology and Infectious Diseases, Institute of Life Sciences, Bhubaneswar, India
| | - Sunil K Raghav
- Immuno-Genomics and Systems Biology, Institute of Life Sciences, Bhubaneswar, India
| | - Shantibhusan Senapati
- Tumor Microenvironment and Animal Models, Institute of Life Sciences, Bhubaneswar, India
| | - Swati Chauhan
- Translational Research, Institute of Life Sciences, Bhubaneswar, India
| | - Santosh Chauhan
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India
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16
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Amelioratory Effects of Testosterone Propionate on Age-related Renal Fibrosis via Suppression of TGF-β1/Smad Signaling and Activation of Nrf2-ARE Signaling. Sci Rep 2018; 8:10726. [PMID: 30013094 PMCID: PMC6048025 DOI: 10.1038/s41598-018-29023-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 07/04/2018] [Indexed: 12/18/2022] Open
Abstract
Androgen plays a pivotal role in the progression of renal fibrosis. However, whether exogenous androgen treatment to aged male rats can improve the age-related renal fibrosis was not explored. In our study, the changes of morphological structure, renal fibrosis, ultrastructure and renal function, the expressions of extracellular matrix (ECM), matrix metalloproteinases (MMPs) and its tissue inhibitors of metalloproteinases (TIMPs), the expressions of tumor growth factor β1 (TGF-β1)/Smad signaling and oxidative stress parameters as well as nuclear factor erythroid 2-related factor 2-antioxidant response element (Nrf2-ARE) signaling were tested in kidney of aged male Wistar rats after subcutaneous testosterone propionate (TP, 2 mg/kg/d, 84-day) injection. Aged rats showed significantly renal histopathological changes, increased renal fibrosis, increased thickening of the glomerular basement membrane and the Bowman’s capsule basement membrane, declined renal functional, increased ECM, lower expressions of MMP-2 and MMP-9 and higher expressions of TIMP-1 and TIMP-2 in renal tissues and higher expressions of TGF-β1/Smad signaling, as well as lower expressions of Nrf2-ARE signaling compared to young rats. TP treatment significantly improved age-related above indexes. These results suggested that TP supplement may alleviate age-related renal fibrosis via suppression of TGF-β1/Smad signaling and activation of Nrf2-ARE signaling in aged rats.
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17
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Tan DQ, Suda T. Reactive Oxygen Species and Mitochondrial Homeostasis as Regulators of Stem Cell Fate and Function. Antioxid Redox Signal 2018; 29:149-168. [PMID: 28708000 DOI: 10.1089/ars.2017.7273] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
SIGNIFICANCE The precise role and impact of reactive oxygen species (ROS) in stem cells, which are essential for lifelong tissue homeostasis and regeneration, remain of significant interest to the field. The long-term regenerative potential of a stem cell compartment is determined by the delicate balance between quiescence, self-renewal, and differentiation, all of which can be influenced by ROS levels. Recent Advances: The past decade has seen a growing appreciation for the importance of ROS and redox homeostasis in various stem cell compartments, particularly those of hematopoietic, neural, and muscle tissues. In recent years, the importance of proteostasis and mitochondria in relation to stem cell biology and redox homeostasis has garnered considerable interest. CRITICAL ISSUES Here, we explore the reciprocal relationship between ROS and stem cells, with significant emphasis on mitochondria as a core component of redox homeostasis. We discuss how redox signaling, involving cell-fate determining protein kinases and transcription factors, can control stem cell function and fate. We also address the impact of oxidative stress on stem cells, especially oxidative damage of lipids, proteins, and nucleic acids. We further discuss ROS management in stem cells, and present recent evidence supporting the importance of mitochondrial activity and its modulation (via mitochondrial clearance, biogenesis, dynamics, and distribution [i.e., segregation and transfer]) in stem cell redox homeostasis. FUTURE DIRECTIONS Therefore, elucidating the intricate links between mitochondria, cellular metabolism, and redox homeostasis is envisioned to be critical for our understanding of ROS in stem cell biology and its therapeutic relevance in regenerative medicine. Antioxid. Redox Signal. 00, 000-000.
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Affiliation(s)
- Darren Q Tan
- Cancer Science Institute of Singapore, National University of Singapore , Singapore, Singapore
| | - Toshio Suda
- Cancer Science Institute of Singapore, National University of Singapore , Singapore, Singapore
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18
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Endo H, Owada S, Inagaki Y, Shida Y, Tatemichi M. Glucose starvation induces LKB1-AMPK-mediated MMP-9 expression in cancer cells. Sci Rep 2018; 8:10122. [PMID: 29973599 PMCID: PMC6031623 DOI: 10.1038/s41598-018-28074-w] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 06/15/2018] [Indexed: 12/21/2022] Open
Abstract
Cancer cells utilise the glycolytic pathway to support their rapid growth and proliferation. Since cells in most solid tumours are subjected to severe microenvironmental stresses including low nutrient and oxygen availability, such cancer cells must develop mechanisms to overcome these unfavourable growth conditions by metabolic adaptation. Although the liver kinase B1 (LKB1)-adenosine monophosphate-activated kinase (AMPK) signalling pathway plays a pivotal role in maintaining energy homeostasis under conditions of metabolic stress, the role of LKB1-AMPK signalling in aiding cancer cell survival and in malignant tumours has not yet been fully elucidated. We show that glucose starvation promotes cancer cell invasiveness and migration through LKB1-AMPK-regulated MMP-9 expression. Most intriguingly, triggering the LKB1-AMPK signalling pathway by glucose starvation-induced oxidative stress facilitates selective autophagy, which in turn enhances Keap1 degradation and the subsequent activation of Nrf2. Following this, Nrf2 regulates the transactivation of MMP-9 via Nrf2 binding sites in the promoter region of the MMP-9 gene. These mechanisms also contribute to the suppression of excessive oxidative stress under glucose starvation, and protect against cell death. Our data clearly shows that LKB1-AMPK signalling not only maintains energy and oxidative stress homeostasis, but could also promote cancer progression during metabolic stress conditions by MMP-9 induction.
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Affiliation(s)
- Hitoshi Endo
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
| | - Satoshi Owada
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Yutaka Inagaki
- Center for Matrix Biology and Medicine, Department of Regenerative Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Yukari Shida
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Masayuki Tatemichi
- Center for Molecular Prevention and Environmental Medicine, Department of Preventive Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
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19
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Carroll CB, Wyse RKH. Simvastatin as a Potential Disease-Modifying Therapy for Patients with Parkinson's Disease: Rationale for Clinical Trial, and Current Progress. JOURNAL OF PARKINSONS DISEASE 2018; 7:545-568. [PMID: 29036837 PMCID: PMC5676977 DOI: 10.3233/jpd-171203] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Many now believe the holy grail for the next stage of therapeutic advance surrounds the development of disease-modifying approaches aimed at intercepting the year-on-year neurodegenerative decline experienced by most patients with Parkinson’s disease (PD). Based on recommendations of an international committee of experts who are currently bringing multiple, potentially disease-modifying, PD therapeutics into long-term neuroprotective PD trials, a clinical trial involving 198 patients is underway to determine whether Simvastatin provides protection against chronic neurodegeneration. Statins are widely used to reduce cardiovascular risk, and act as competitive inhibitors of HMG-CoA reductase. It is also known that statins serve as ligands for PPARα, a known arbiter for mitochondrial size and number. Statins possess multiple cholesterol-independent biochemical mechanisms of action, many of which offer neuroprotective potential (suppression of proinflammatory molecules & microglial activation, stimulation of endothelial nitric oxide synthase, inhibition of oxidative stress, attenuation of α-synuclein aggregation, modulation of adaptive immunity, and increased expression of neurotrophic factors). We describe the biochemical, physiological and pharmaceutical credentials that continue to underpin the rationale for taking Simvastatin into a disease-modifying trial in PD patients. While unrelated to the Simvastatin trial (because this conducted in patients who already have PD), we discuss conflicting epidemiological studies which variously suggest that statin use for cardiovascular prophylaxis may increase or decrease risk of developing PD. Finally, since so few disease-modifying PD trials have ever been launched (compared to those of symptomatic therapies), we discuss the rationale of the trial structure we have adopted, decisions made, and lessons learnt so far.
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Affiliation(s)
- Camille B Carroll
- Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, UK
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Couroucli XI. Oxidative stress in the retina: implications for Retinopathy of Prematurity. CURRENT OPINION IN TOXICOLOGY 2018; 7:102-109. [PMID: 35784947 DOI: 10.1016/j.cotox.2017.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Oxygen supplementation has been used as a part of respiratory care for preterm and term newborns since the beginning of 19th century. Although oxygen administration can be life-saving, reactive oxygen species (ROS) and reactive nitrogen species (RNS) due to hyperoxia can have detrimental effects in the developing organs of the preterm infants, with both short and long term consequences. Oxygen toxicity on the immature tissues of preterm infants can contribute to the development of several diseases like retinopathy of prematurity (ROP) and bronchopulmonary dysplasia (BPD). The vascular development of human retina is completed at term, whereas the neural retina develops up to 5 years of age. Disruption of the normal retinal neurovascular growth is the pathognomonic feature of ROP, and can lead to vision threatening disease or even blindness. It is estimated that at least 100,000 infants all over the world will be blind every year due to ROP, which is the leading cause of blindness in children. In this review we will discuss the role of ROS and RNS in the development of ROP, and how through historical, epidemiological, and developmental aspects of this devastating disease, we can design future research for its prevention and treatment.
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Affiliation(s)
- Xanthi I Couroucli
- Section of Neonatology, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, 1102 Bates Avenue, Suite 530, Houston, Texas 77030. U.S.A
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A hypermorphic antioxidant response element is associated with increased MS4A6A expression and Alzheimer's disease. Redox Biol 2017; 14:686-693. [PMID: 29179108 PMCID: PMC5705802 DOI: 10.1016/j.redox.2017.10.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 10/18/2017] [Accepted: 10/25/2017] [Indexed: 12/17/2022] Open
Abstract
Late onset Alzheimer's disease (AD) is a multifactorial disorder, with AD risk influenced by both environmental and genetic factors. Recent genome-wide association studies (GWAS) have identified genetic loci associated with increased risk of developing AD. The MS4A (membrane-spanning 4-domains subfamily A) gene cluster is one of the most significant loci associated with AD risk, and MS4A6A expression is correlated with AD pathology. We identified a single nucleotide polymorphism, rs667897, at the MS4A locus that creates an antioxidant response element and links MS4A6A expression to the stress responsive Cap-n-Collar (CNC) transcription factors NRF1 (encoded by NFE2L1) and NRF2 (encoded by NFE2L2). The risk allele of rs667897 generates a strong CNC binding sequence that is activated by proteostatic stress in an NRF1-dependent manner, and is associated with increased expression of the gene MS4A6A. Together, these findings suggest that the cytoprotective CNC regulatory network aberrantly activates MS4A6A expression and increases AD risk in a subset of the population.
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