201
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Rahim I, Sayed RK, Fernández-Ortiz M, Aranda-Martínez P, Guerra-Librero A, Fernández-Martínez J, Rusanova I, Escames G, Djerdjouri B, Acuña-Castroviejo D. Melatonin alleviates sepsis-induced heart injury through activating the Nrf2 pathway and inhibiting the NLRP3 inflammasome. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2021; 394:261-277. [PMID: 32936353 DOI: 10.1007/s00210-020-01972-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/31/2020] [Indexed: 12/17/2022]
Abstract
Melatonin improved the outcome of septic cardiomyopathy by inhibiting NLRP3 priming induced by reactive oxygen species. To get insights into these events, we studied the melatonin/Nrf2 antioxidant pathways during sepsis in the heart of NLRP3-deficient mice. Sepsis was induced by cecal ligation and puncture and melatonin was given at a dose of 30 mg/kg. Nuclear turnover of Nrf2 and p-Ser40 Nrf2 and expression of ho-1 were enhanced in nlrp3+/+ and nlrp3-/- mice during sepsis. Sepsis caused higher mitochondria impairment, apoptotic and autophagic events in nlrp3+/+ mice than in nlrp3-/- animals. These findings were accompanied by greater levels of Parkin and PINK-1, and lower Mfn2/Drp-1 ratio in nlrp3+/+ than in nlrp3-/- mice during sepsis, supporting less mitophagy in the latter. Ultrastructural analysis of myocardial tissue further confirmed these observations. The activation of NLRP3 inflammasome accounted for most of the deleterious effects of sepsis, whereas the Nrf2-dependent antioxidative response activation in response to sepsis was unable to neutralize these events. In turn, melatonin further enhanced the Nrf2 response in both mice strains and reduced the NLRP3 inflammasome activation in nlrp3+/+ mice, restoring myocardial homeostasis. The data support that the anti-inflammatory efficacy of melatonin against sepsis depends, at least in part, on Nrf2 activation.
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Affiliation(s)
- Ibtissem Rahim
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
- Département de Biologie et Physiologie Cellulaire, Faculté des Sciences de la Nature et de la Vie, Université Blida 1, 09000, Blida, Algeria
- Faculté des Sciences Biologiques, Laboratoire de Biologie Cellulaire et Moléculaire, Université des Sciences et de la Technologie Houari Boumediene, Bab-Ezzouar, 16111, Algiers, Algeria
| | - Ramy K Sayed
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Sohag University, Sohag, 82524, Egypt
| | - Marisol Fernández-Ortiz
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - Paula Aranda-Martínez
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - Ana Guerra-Librero
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - José Fernández-Martínez
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - Iryna Rusanova
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - Germaine Escames
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
- CIBERfes, Ibs.Granada, and UGC de Laboratorios Clínicos, Complejo Hospitalario de Granada, 18016, Granada, Spain
| | - Bahia Djerdjouri
- Faculté des Sciences Biologiques, Laboratoire de Biologie Cellulaire et Moléculaire, Université des Sciences et de la Technologie Houari Boumediene, Bab-Ezzouar, 16111, Algiers, Algeria
| | - Darío Acuña-Castroviejo
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain.
- CIBERfes, Ibs.Granada, and UGC de Laboratorios Clínicos, Complejo Hospitalario de Granada, 18016, Granada, Spain.
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202
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Surai PF, Kochish II, Kidd MT. Redox Homeostasis in Poultry: Regulatory Roles of NF-κB. Antioxidants (Basel) 2021; 10:186. [PMID: 33525511 PMCID: PMC7912633 DOI: 10.3390/antiox10020186] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/19/2021] [Accepted: 01/25/2021] [Indexed: 12/13/2022] Open
Abstract
Redox biology is a very quickly developing area of modern biological sciences, and roles of redox homeostasis in health and disease have recently received tremendous attention. There are a range of redox pairs in the cells/tissues responsible for redox homeostasis maintenance/regulation. In general, all redox elements are interconnected and regulated by various means, including antioxidant and vitagene networks. The redox status is responsible for maintenance of cell signaling and cell stress adaptation. Physiological roles of redox homeostasis maintenance in avian species, including poultry, have received limited attention and are poorly characterized. However, for the last 5 years, this topic attracted much attention, and a range of publications covered some related aspects. In fact, transcription factor Nrf2 was shown to be a master regulator of antioxidant defenses via activation of various vitagenes and other protective molecules to maintain redox homeostasis in cells/tissues. It was shown that Nrf2 is closely related to another transcription factor, namely, NF-κB, responsible for control of inflammation; however, its roles in poultry have not yet been characterized. Therefore, the aim of this review is to describe a current view on NF-κB functioning in poultry with a specific emphasis to its nutritional modulation under various stress conditions. In particular, on the one hand, it has been shown that, in many stress conditions in poultry, NF-κB activation can lead to increased synthesis of proinflammatory cytokines leading to systemic inflammation. On the other hand, there are a range of nutrients/supplements that can downregulate NF-κB and decrease the negative consequences of stress-related disturbances in redox homeostasis. In general, vitagene-NF-κB interactions in relation to redox balance homeostasis, immunity, and gut health in poultry production await further research.
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Affiliation(s)
- Peter F. Surai
- Department of Biochemistry, Vitagene and Health Research Centre, Bristol BS4 2RS, UK
- Department of Hygiene and Poultry Sciences, Moscow State Academy of Veterinary Medicine and Biotechnology named after K. I. Skryabin, 109472 Moscow, Russia;
- Department of Biochemistry and Physiology, Saint-Petersburg State Academy of Veterinary Medicine, 196084 St. Petersburg, Russia
- Department of Microbiology and Biochemistry, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria
- Department of Animal Nutrition, Faculty of Agricultural and Environmental Sciences, Szent Istvan University, H-2103 Gödöllo, Hungary
| | - Ivan I. Kochish
- Department of Hygiene and Poultry Sciences, Moscow State Academy of Veterinary Medicine and Biotechnology named after K. I. Skryabin, 109472 Moscow, Russia;
| | - Michael T. Kidd
- Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA;
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203
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Choi I, Son H, Baek JH. Tricarboxylic Acid (TCA) Cycle Intermediates: Regulators of Immune Responses. Life (Basel) 2021; 11:69. [PMID: 33477822 PMCID: PMC7832849 DOI: 10.3390/life11010069] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 02/06/2023] Open
Abstract
The tricarboxylic acid cycle (TCA) is a series of chemical reactions used in aerobic organisms to generate energy via the oxidation of acetylcoenzyme A (CoA) derived from carbohydrates, fatty acids and proteins. In the eukaryotic system, the TCA cycle occurs completely in mitochondria, while the intermediates of the TCA cycle are retained inside mitochondria due to their polarity and hydrophilicity. Under cell stress conditions, mitochondria can become disrupted and release their contents, which act as danger signals in the cytosol. Of note, the TCA cycle intermediates may also leak from dysfunctioning mitochondria and regulate cellular processes. Increasing evidence shows that the metabolites of the TCA cycle are substantially involved in the regulation of immune responses. In this review, we aimed to provide a comprehensive systematic overview of the molecular mechanisms of each TCA cycle intermediate that may play key roles in regulating cellular immunity in cell stress and discuss its implication for immune activation and suppression.
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Affiliation(s)
| | | | - Jea-Hyun Baek
- School of Life Science, Handong Global University, Pohang, Gyeongbuk 37554, Korea; (I.C.); (H.S.)
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204
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Olonisakin TF, Suber T, Gonzalez-Ferrer S, Xiong Z, Peñaloza HF, van der Geest R, Xiong Y, Osei-Hwedieh DO, Tejero J, Rosengart MR, Mars WM, Van Tyne D, Perlegas A, Brashears S, Kim-Shapiro DB, Gladwin MT, Bachman MA, Hod EA, St. Croix C, Tyurina YY, Kagan VE, Mallampalli RK, Ray A, Ray P, Lee JS. Stressed erythrophagocytosis induces immunosuppression during sepsis through heme-mediated STAT1 dysregulation. J Clin Invest 2021; 131:137468. [PMID: 32941182 PMCID: PMC7773401 DOI: 10.1172/jci137468] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 09/09/2020] [Indexed: 01/16/2023] Open
Abstract
Macrophages are main effectors of heme metabolism, increasing transiently in the liver during heightened disposal of damaged or senescent RBCs (sRBCs). Macrophages are also essential in defense against microbial threats, but pathological states of heme excess may be immunosuppressive. Herein, we uncovered a mechanism whereby an acute rise in sRBC disposal by macrophages led to an immunosuppressive phenotype after intrapulmonary Klebsiella pneumoniae infection characterized by increased extrapulmonary bacterial proliferation and reduced survival from sepsis in mice. The impaired immunity to K. pneumoniae during heightened sRBC disposal was independent of iron acquisition by bacterial siderophores, in that K. pneumoniae mutants lacking siderophore function recapitulated the findings observed with the WT strain. Rather, sRBC disposal induced a liver transcriptomic profile notable for suppression of Stat1 and IFN-related responses during K. pneumoniae sepsis. Excess heme handling by macrophages recapitulated STAT1 suppression during infection that required synergistic NRF1 and NRF2 activation but was independent of heme oxygenase-1 induction. Whereas iron was dispensable, the porphyrin moiety of heme was sufficient to mediate suppression of STAT1-dependent responses in human and mouse macrophages and promoted liver dissemination of K. pneumoniae in vivo. Thus, cellular heme metabolism dysfunction negatively regulated the STAT1 pathway, with implications in severe infection.
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Affiliation(s)
- Tolani F. Olonisakin
- Medical Scientist Training Program,,Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Tomeka Suber
- Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Shekina Gonzalez-Ferrer
- Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Zeyu Xiong
- Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Hernán F. Peñaloza
- Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Rick van der Geest
- Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Yuting Xiong
- Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | | | - Jesús Tejero
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine,,Vascular Medicine Institute
| | | | | | - Daria Van Tyne
- Division of Infectious Diseases, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Andreas Perlegas
- Department of Physics and The Translational Science Center, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Samuel Brashears
- Department of Physics and The Translational Science Center, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Daniel B. Kim-Shapiro
- Department of Physics and The Translational Science Center, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Mark T. Gladwin
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine,,Vascular Medicine Institute
| | - Michael A. Bachman
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA
| | - Eldad A. Hod
- Department of Pathology and Cell Biology, Columbia University Medical Center-New York Presbyterian Hospital, New York, New York, USA
| | | | - Yulia Y. Tyurina
- Department of Environmental and Occupational Health, and,Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Valerian E. Kagan
- Department of Environmental and Occupational Health, and,Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Rama K. Mallampalli
- Department of Medicine, Ohio State University Medical Center, Columbus, Ohio, USA
| | - Anuradha Ray
- Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Prabir Ray
- Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Janet S. Lee
- Acute Lung Injury Center of Excellence,,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine,,Vascular Medicine Institute
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205
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Ansari SA, Keshava S, Pendurthi UR, Rao LVM. Oxidative Stress Product, 4-Hydroxy-2-Nonenal, Induces the Release of Tissue Factor-Positive Microvesicles From Perivascular Cells Into Circulation. Arterioscler Thromb Vasc Biol 2021; 41:250-265. [PMID: 33028097 PMCID: PMC7752210 DOI: 10.1161/atvbaha.120.315187] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 09/16/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE TF (Tissue factor) plays a key role in hemostasis, but an aberrant expression of TF leads to thrombosis. The objective of the present study is to investigate the effect of 4-hydroxy-2-nonenal (HNE), the most stable and major oxidant produced in various disease conditions, on the release of TF+ microvesicles into the circulation, identify the source of TF+ microvesicles origin, and assess their effect on intravascular coagulation and inflammation. Approach and Results: C57BL/6J mice were administered with HNE intraperitoneally, and the release of TF+ microvesicles into circulation was evaluated using coagulation assays and nanoparticle tracking analysis. Various cell-specific markers were used to identify the cellular source of TF+ microvesicles. Vascular permeability was analyzed by the extravasation of Evans blue dye or fluorescein dextran. HNE administration to mice markedly increased the levels of TF+ microvesicles and thrombin generation in the circulation. HNE administration also increased the number of neutrophils in the lungs and elevated the levels of inflammatory cytokines in plasma. Administration of an anti-TF antibody blocked not only HNE-induced thrombin generation but also HNE-induced inflammation. Confocal microscopy and immunoblotting studies showed that HNE does not induce TF expression either in vascular endothelium or circulating monocytes. Microvesicles harvested from HNE-administered mice stained positively with CD248 and α-smooth muscle actin, the markers that are specific to perivascular cells. HNE was found to destabilize endothelial cell barrier integrity. CONCLUSIONS HNE promotes the release of TF+ microvesicles from perivascular cells into the circulation. HNE-induced increased TF activity contributes to intravascular coagulation and inflammation.
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Affiliation(s)
- Shabbir A. Ansari
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler
| | - Shiva Keshava
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler
| | - Usha R. Pendurthi
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler
| | - L. Vijaya Mohan Rao
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler
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206
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Ling K, Zhou W, Guo Y, Hu G, Chu J, Xie F, Li Y, Wang W. H 2S attenuates oxidative stress via Nrf2/NF-κB signaling to regulate restenosis after percutaneous transluminal angioplasty. Exp Biol Med (Maywood) 2021; 246:226-239. [PMID: 32996350 PMCID: PMC7871122 DOI: 10.1177/1535370220961038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 09/02/2020] [Indexed: 01/05/2023] Open
Abstract
Restenosis after angioplasty of peripheral arteries is a clinical problem involving oxidative stress. Hydrogen sulfide (H2S) participates in oxidative stress regulation and activates nuclear factor erythroid 2-related factor 2 (Nrf2). This study investigated the effect of H2S and Nrf2 on restenosis-induced arterial injury. Using an in vivo rat model of restenosis, we investigated whether H2S inhibits restenosis after percutaneous transluminal angioplasty (PTA) and the oxidative stress-related mechanisms implicated therein. The involvement of Nrf2 was explored using Nrf2-shRNA. Neointimal formation and the deposition of elastic fibers were assessed histologically. Inflammatory cytokine secretion and the expression of proteins associated with oxidative stress and inflammation were evaluated. The artery of rats subjected to restenosis showed increased arterial intimal thickness, with prominent elastic fiber deposition. Sodium hydrosulfide (NaHS), an H2S donor, counteracted these changes in vivo. Restenosis caused a decrease in anti-oxidative stress signaling. This phenomenon was inhibited by NaHS, but Nrf2-shRNA counteracted the effects of NaHS. In terms of inflammation, inflammatory cytokines were upregulated, whereas NaHS suppressed the induced inflammatory reaction. Similarly, Nrf2 downregulation blocked the effect of NaHS. In vitro studies using aortic endothelial and vascular smooth muscle cells isolated from experimental animals showed consistent results as those of in vivo studies, and the participation of the nuclear factor-kappa B signaling pathway was demonstrated. Collectively, H2S played a role in regulating post-PTA restenosis by alleviating oxidative stress, modulating anti-oxidant defense, and targeting Nrf2-related pathways via nuclear factor-kappa B signaling.
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Affiliation(s)
- Ken Ling
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Wei Zhou
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yi Guo
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Guofu Hu
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jie Chu
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Fen Xie
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yiqing Li
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Weici Wang
- Department of Vascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
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207
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NRF2 and paraquat-induced fatal redox stress. Toxicology 2021. [DOI: 10.1016/b978-0-12-819092-0.00010-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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208
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Wu YX, Zeng S, Wan BB, Wang YY, Sun HX, Liu G, Gao ZQ, Chen D, Chen YQ, Lu MD, Pang QF. Sophoricoside attenuates lipopolysaccharide-induced acute lung injury by activating the AMPK/Nrf2 signaling axis. Int Immunopharmacol 2021; 90:107187. [PMID: 33249045 DOI: 10.1016/j.intimp.2020.107187] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 10/19/2020] [Accepted: 11/04/2020] [Indexed: 12/14/2022]
Abstract
Sophoricoside (SOP), an isoflavone glycoside isolated from seed of Sophora japonica L., has been reported to have various pharmacological activities, including anti-cancer, anti-allergy and anti-inflammation. However, the effect of SOP on lipopolysaccharides (LPS)-acute lung injury (ALI) is completely unclear. Here, we found that SOP pretreatment significantly ameliorated LPS-induced pathological damage, tissue permeability, neutrophil infiltration and the production of pro-inflammatory cytokines (TNF-α, IL-1β and IL-6) in a murine model of ALI. Besides, SOP reduced the production of pro-inflammatory mediators such as iNOS, NO and inflammatory cytokines including TNF-α, IL-1β and IL-6 in LPS-stimulated RAW264.7 cells and bone marrow derived macrophages. Interestingly, treatment with SOP exhibited no effect on the activation of NF-κB and MAPKs in macrophages but prominently accelerated the expression and nuclear translocation of Nrf2. By using ML385, a specific Nrf2 inhibitor, we found that inhibition of Nrf2 abolished the inhibitory effect of SOP on LPS-induced iNOS expression, NO production as well as pro-inflammatory cytokine generation. SOP also activated AMPK, an upstream protein of Nrf2, under LPS stimuli. Furthermore, we demonstrated that the accelerated expression of Nrf2 induced by SOP was reversed by interference with the AMPK inhibitor Compound C. Taken together, our results suggested that SOP attenuated LPS-induced ALI in AMPK/Nrf2 dependent manner and indicated that SOP might be a potential therapeutic candidate for treating ALI/ARDS.
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Affiliation(s)
- Ya-Xian Wu
- Wuxi School of Medicine, Jiangnan University, PR China; School of Food Science and Technology, Jiangnan University, PR China
| | - Si Zeng
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, PR China
| | - Bin-Bin Wan
- Wuxi School of Medicine, Jiangnan University, PR China
| | | | | | - Gang Liu
- Wuxi School of Medicine, Jiangnan University, PR China
| | - Zhi-Qi Gao
- Wuxi School of Medicine, Jiangnan University, PR China
| | - Dan Chen
- Wuxi School of Medicine, Jiangnan University, PR China
| | - Yong-Quan Chen
- Wuxi School of Medicine, Jiangnan University, PR China; School of Food Science and Technology, Jiangnan University, PR China
| | - Mu-Dan Lu
- Central Laboratory, The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, PR China.
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209
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Forman HJ, Zhang H. Targeting oxidative stress in disease: promise and limitations of antioxidant therapy. Nat Rev Drug Discov 2021; 20:689-709. [PMID: 34194012 PMCID: PMC8243062 DOI: 10.1038/s41573-021-00233-1] [Citation(s) in RCA: 943] [Impact Index Per Article: 314.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2021] [Indexed: 02/06/2023]
Abstract
Oxidative stress is a component of many diseases, including atherosclerosis, chronic obstructive pulmonary disease, Alzheimer disease and cancer. Although numerous small molecules evaluated as antioxidants have exhibited therapeutic potential in preclinical studies, clinical trial results have been disappointing. A greater understanding of the mechanisms through which antioxidants act and where and when they are effective may provide a rational approach that leads to greater pharmacological success. Here, we review the relationships between oxidative stress, redox signalling and disease, the mechanisms through which oxidative stress can contribute to pathology, how antioxidant defences work, what limits their effectiveness and how antioxidant defences can be increased through physiological signalling, dietary components and potential pharmaceutical intervention.
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Affiliation(s)
- Henry Jay Forman
- University of California Merced, Merced, CA, USA. .,Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA.
| | - Hongqiao Zhang
- grid.42505.360000 0001 2156 6853Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA USA
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210
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Amatullah H, Maron-Gutierrez T, Shan Y, Gupta S, Tsoporis JN, Varkouhi AK, Teixeira Monteiro AP, He X, Yin J, Marshall JC, Rocco PRM, Zhang H, Kuebler WM, Dos Santos CC. Protective function of DJ-1/PARK7 in lipopolysaccharide and ventilator-induced acute lung injury. Redox Biol 2021; 38:101796. [PMID: 33246293 PMCID: PMC7695876 DOI: 10.1016/j.redox.2020.101796] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/30/2020] [Accepted: 11/08/2020] [Indexed: 11/27/2022] Open
Abstract
Oxidative stress is considered one of the early underlying contributors of acute lung injury (ALI) and ventilator-induced lung injury (VILI). DJ-1, also known as PARK7, has a well-established role as an antioxidant. We have previously shown maintaining oxidative balance via the ATF3-Nrf2 axis was important in protection from ALI. Here, we exclusively characterize the role of DJ-1 in sterile LPS-induced ALI and VILI. DJ-1 protein expression was increased after LPS treatment in human epithelial and endothelial cell lines and lungs of wild-type mice. DJ-1 deficient mice exhibited greater susceptibility to LPS-induced acute lung injury as demonstrated by increased cellular infiltration, augmented levels of pulmonary cytokines, enhanced ROS levels and oxidized by-products, increased pulmonary edema and cell death. In a two-hit model of LPS and mechanical ventilation (MV), DJ-1 deficient mice displayed enhanced susceptibility to inflammation and lung injury. Collectively, these results identify DJ-1 as a negative regulator of ROS and inflammation, and suggest its expression protects from sterile lung injury driven by high oxidative stress.
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Affiliation(s)
- Hajera Amatullah
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada; Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Tatiana Maron-Gutierrez
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada; Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, RJ, Brazil
| | - Yuexin Shan
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada
| | - Sahil Gupta
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - James N Tsoporis
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada
| | - Amir K Varkouhi
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada
| | | | - Xiaolin He
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada
| | - Jun Yin
- Department of Thoracic Surgery, Zhongshan Hospital of Fudan University, Shanghai, 200032, China
| | - John C Marshall
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Patricia R M Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, RJ, Brazil
| | - Haibo Zhang
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada; Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
| | - Wolfgang M Kuebler
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada; Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Claudia C Dos Santos
- Keenan Research Center of St. Michael's Hospital, Unity Health Toronto, 30 Bond Street, Toronto, ON, Canada; Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.
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211
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Guerrero-Hue M, Rayego-Mateos S, Vázquez-Carballo C, Palomino-Antolín A, García-Caballero C, Opazo-Rios L, Morgado-Pascual JL, Herencia C, Mas S, Ortiz A, Rubio-Navarro A, Egea J, Villalba JM, Egido J, Moreno JA. Protective Role of Nrf2 in Renal Disease. Antioxidants (Basel) 2020; 10:antiox10010039. [PMID: 33396350 PMCID: PMC7824104 DOI: 10.3390/antiox10010039] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/26/2020] [Accepted: 12/27/2020] [Indexed: 02/07/2023] Open
Abstract
Chronic kidney disease (CKD) is one of the fastest-growing causes of death and is predicted to become by 2040 the fifth global cause of death. CKD is characterized by increased oxidative stress and chronic inflammation. However, therapies to slow or prevent CKD progression remain an unmet need. Nrf2 (nuclear factor erythroid 2-related factor 2) is a transcription factor that plays a key role in protection against oxidative stress and regulation of the inflammatory response. Consequently, the use of compounds targeting Nrf2 has generated growing interest for nephrologists. Pre-clinical and clinical studies have demonstrated that Nrf2-inducing strategies prevent CKD progression and protect from acute kidney injury (AKI). In this article, we review current knowledge on the protective mechanisms mediated by Nrf2 against kidney injury, novel therapeutic strategies to induce Nrf2 activation, and the status of ongoing clinical trials targeting Nrf2 in renal diseases.
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Affiliation(s)
- Melania Guerrero-Hue
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
| | - Sandra Rayego-Mateos
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
| | - Cristina Vázquez-Carballo
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
| | - Alejandra Palomino-Antolín
- Research Unit, Hospital Universitario Santa Cristina, IIS-Hospital Universitario de la Princesa, 28006 Madrid, Spain; (A.P.-A.); (J.E.)
- Departament of Pharmacology and Therapeutics, Medicine Faculty, Instituto Teófilo Hernando, Autónoma University, 28029 Madrid, Spain
| | - Cristina García-Caballero
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
| | - Lucas Opazo-Rios
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - José Luis Morgado-Pascual
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
| | - Carmen Herencia
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
| | - Sebastián Mas
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - Alberto Ortiz
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
- Red Nacional Investigaciones Nefrológicas (REDINREN), 28040 Madrid, Spain
| | - Alfonso Rubio-Navarro
- Weill Center for Metabolic Health and Division of Cardiology, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA;
| | - Javier Egea
- Research Unit, Hospital Universitario Santa Cristina, IIS-Hospital Universitario de la Princesa, 28006 Madrid, Spain; (A.P.-A.); (J.E.)
- Departament of Pharmacology and Therapeutics, Medicine Faculty, Instituto Teófilo Hernando, Autónoma University, 28029 Madrid, Spain
| | - José Manuel Villalba
- Department of Cell Biology, Physiology, and Immunology, Agrifood Campus of International Excellence (ceiA3), University of Cordoba, 14014 Cordoba, Spain;
| | - Jesús Egido
- Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Autónoma University, 28040 Madrid, Spain; (C.V.-C.); (L.O.-R.); (C.H.); (S.M.); (A.O.); (J.E.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - Juan Antonio Moreno
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain; (M.G.-H.); (S.R.-M.); (C.G.-C.); (J.L.M.-P.)
- Department of Cell Biology, Physiology, and Immunology, Agrifood Campus of International Excellence (ceiA3), University of Cordoba, 14014 Cordoba, Spain;
- Hospital Universitario Reina Sofia, 14004 Cordoba, Spain
- Biomedical Research Networking Center on Cardiovascular Diseases (CIBERCV), 28040 Madrid, Spain
- Correspondence: ; Tel.: +34-957-218-039
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Abstract
Metabolic pathways and redox reactions are at the core of life. In the past decade(s), numerous discoveries have shed light on how metabolic pathways determine the cellular fate and function of lymphoid and myeloid cells, giving rise to an area of research referred to as immunometabolism. Upon activation, however, immune cells not only engage specific metabolic pathways but also rearrange their oxidation-reduction (redox) system, which in turn supports metabolic reprogramming. In fact, studies addressing the redox metabolism of immune cells are an emerging field in immunology. Here, we summarize recent insights revealing the role of reactive oxygen species (ROS) and the differential requirement of the main cellular antioxidant pathways, including the components of the thioredoxin (TRX) and glutathione (GSH) pathways, as well as their transcriptional regulator NF-E2-related factor 2 (NRF2), for proliferation, survival and function of T cells, B cells and macrophages.
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Affiliation(s)
- Jonathan Muri
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland.
| | - Manfred Kopf
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland.
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213
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Gunne S, Heinicke U, Parnham MJ, Laux V, Zacharowski K, von Knethen A. Nrf2-A Molecular Target for Sepsis Patients in Critical Care. Biomolecules 2020; 10:biom10121688. [PMID: 33348637 PMCID: PMC7766194 DOI: 10.3390/biom10121688] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/13/2020] [Accepted: 12/15/2020] [Indexed: 12/24/2022] Open
Abstract
The transcription factor NF-E2 p45-related factor 2 (Nrf2) is an established master regulator of the anti-oxidative and detoxifying cellular response. Thus, a role in inflammatory diseases associated with the generation of large amounts of reactive oxygen species (ROS) seems obvious. In line with this, data obtained in cell culture experiments and preclinical settings have shown that Nrf2 is important in regulating target genes that are necessary to ensure cellular redox balance. Additionally, Nrf2 is involved in the induction of phase II drug metabolizing enzymes, which are important both in degrading and converting drugs into active forms, and into putative carcinogens. Therefore, Nrf2 has also been implicated in tumorigenesis. This must be kept in mind when new therapy approaches are planned for the treatment of sepsis. Therefore, this review highlights the function of Nrf2 in sepsis with a special focus on the translation of rodent-based results into sepsis patients in the intensive care unit (ICU).
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Affiliation(s)
- Sandra Gunne
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; (S.G.); (M.J.P.); (V.L.)
| | - Ulrike Heinicke
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; (U.H.); (K.Z.)
| | - Michael J. Parnham
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; (S.G.); (M.J.P.); (V.L.)
| | - Volker Laux
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; (S.G.); (M.J.P.); (V.L.)
| | - Kai Zacharowski
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; (U.H.); (K.Z.)
| | - Andreas von Knethen
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany; (S.G.); (M.J.P.); (V.L.)
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany; (U.H.); (K.Z.)
- Correspondence: ; Tel.: +49-69-6301-87824
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214
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Fu K, Chen H, Wang Z, Cao R. Andrographolide attenuates inflammatory response induced by LPS via activating Nrf2 signaling pathway in bovine endometrial epithelial cells. Res Vet Sci 2020; 134:36-41. [PMID: 33290978 DOI: 10.1016/j.rvsc.2020.11.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/19/2020] [Accepted: 11/29/2020] [Indexed: 01/08/2023]
Abstract
Endometritis is one of the main causes of bovine infertility, which causes serious economic losses to the industry. The endometrium is the first line of defense against invading microbial pathogens in the uterus. Andrographolide is the primary active component of A. paniculate, and has been shown to have anti-inflammatory and antioxidant effects. However, its effects on the LPS-induced signaling pathway in bovine endometrial epithelial cells (bEECs) have not been reported yet. The aim of this study was to investigate the anti-inflammatory effects and mechanism of andrographolide in the LPS-induced inflammatory response of bEECs. We found that andrographolide strongly reduced LPS-induced NO and iNOS expression. The production of cytokines that were upregulated by LPS was significantly suppressed. To investigate the anti-inflammatory mechanism of andrographolide, we examined the activation of Nrf2. The results shown that andrographolide inhibited the expression of Keap1 but increased the expression of Nrf2. The expression levels of target genes of Nrf2 including Ho-1 and Nqo-1 were increased by andrographolide. Taken together, these results suggest that andrographolide may serve as a candidate to protect against the LPS-induced inflammatory response by inducing Nrf2 activation.
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Affiliation(s)
- Kaiqiang Fu
- College of Veterinary Medicine, Qingdao Agricultural University, Shandong, Qingdao 266109, PR China
| | - Hao Chen
- College of Veterinary Medicine, Qingdao Agricultural University, Shandong, Qingdao 266109, PR China
| | - Zezhi Wang
- College of Veterinary Medicine, Qingdao Agricultural University, Shandong, Qingdao 266109, PR China
| | - Rongfeng Cao
- College of Veterinary Medicine, Qingdao Agricultural University, Shandong, Qingdao 266109, PR China.
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215
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Ishida N, Aoki Y, Katsuoka F, Nishijima I, Nobukuni T, Anzawa H, Bin L, Tsuda M, Kumada K, Kudo H, Terakawa T, Otsuki A, Kinoshita K, Yamashita R, Minegishi N, Yamamoto M. Landscape of electrophilic and inflammatory stress-mediated gene regulation in human lymphoblastoid cell lines. Free Radic Biol Med 2020; 161:71-83. [PMID: 33011271 DOI: 10.1016/j.freeradbiomed.2020.09.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 09/26/2020] [Indexed: 02/08/2023]
Abstract
Human lymphoblastoid cell lines (LCLs) are valuable for the functional analyses of diseases. We have established more than 4200 LCLs as one of the resources of an integrated biobank. While oxidative and inflammatory stresses play critical roles in the onset and progression of various diseases, the responsiveness of LCLs, especially that of biobank-made LCLs, to these stresses has not been established. To address how LCLs respond to these stresses, in this study, we performed RNA sequencing of eleven human LCLs that were treated with an electrophile, diethyl maleate (DEM) and/or an inflammatory mediator, lipopolysaccharide (LPS). We found that over two thousand genes, including those regulated by a master regulator of the electrophilic/oxidative stress response, NRF2, were upregulated in LCLs treated with DEM, while approximately three hundred genes, including inflammation-related genes, were upregulated in LPS-treated LCLs. Of the LPS-induced genes, a subset of proinflammatory genes was repressed by DEM, supporting the notion that DEM suppresses the expression of proinflammatory genes through NRF2 activation. Conversely, a part of DEM-induced gene was repressed by LPS, suggesting reciprocal interference between electrophilic and inflammatory stress-mediated pathways. These data clearly demonstrate that LCLs maintain, by and large, responsive pathways against oxidative and inflammatory stresses and further endorse the usefulness of the LCL supply from the biobank.
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Affiliation(s)
- Noriko Ishida
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Yuichi Aoki
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan; Department of System Bioinformatics, Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Fumiki Katsuoka
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Ichiko Nishijima
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Takahiro Nobukuni
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Hayato Anzawa
- Department of System Bioinformatics, Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Li Bin
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan; Advanced Research Center for Innovations in Next Generation Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Miyuki Tsuda
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Kazuki Kumada
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Hisaaki Kudo
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Takahiro Terakawa
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Akihito Otsuki
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Kengo Kinoshita
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan; Department of System Bioinformatics, Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Riu Yamashita
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan; Division of Translational Informatics, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Naoko Minegishi
- Department of Biobank, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Masayuki Yamamoto
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan; Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
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216
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Khan H, Tundis R, Ullah H, Aschner M, Belwal T, Mirzaei H, Akkol EK. Flavonoids targeting NRF2 in neurodegenerative disorders. Food Chem Toxicol 2020; 146:111817. [PMID: 33069760 DOI: 10.1016/j.fct.2020.111817] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/11/2020] [Accepted: 10/12/2020] [Indexed: 02/05/2023]
Affiliation(s)
- Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan.
| | - Rosa Tundis
- Department of Pharmacy, Health and Nutritional Sciences University of Calabria, Via P. Bucci 87036 Rende (CS), Italy.
| | - Hammad Ullah
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA.
| | - Tarun Belwal
- Centre for Biodiversity Conservation and Management, G.B. Plant National Institute of Himalayan Environment and Sustainable Development, Kosi-Katarmal, Almora, Uttarakhand, India.
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R, Iran.
| | - Esra Kupeli Akkol
- Department of Pharmacognosy, Faculty of Pharmacy Gazi University 06330, Etiler/Ankara Turkey.
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217
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An Overview of Nrf2 Signaling Pathway and Its Role in Inflammation. Molecules 2020; 25:molecules25225474. [PMID: 33238435 PMCID: PMC7700122 DOI: 10.3390/molecules25225474] [Citation(s) in RCA: 569] [Impact Index Per Article: 142.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/13/2020] [Accepted: 11/19/2020] [Indexed: 12/16/2022] Open
Abstract
Inflammation is a key driver in many pathological conditions such as allergy, cancer, Alzheimer’s disease, and many others, and the current state of available drugs prompted researchers to explore new therapeutic targets. In this context, accumulating evidence indicates that the transcription factor Nrf2 plays a pivotal role controlling the expression of antioxidant genes that ultimately exert anti-inflammatory functions. Nrf2 and its principal negative regulator, the E3 ligase adaptor Kelch-like ECH- associated protein 1 (Keap1), play a central role in the maintenance of intracellular redox homeostasis and regulation of inflammation. Interestingly, Nrf2 is proved to contribute to the regulation of the heme oxygenase-1 (HO-1) axis, which is a potent anti-inflammatory target. Recent studies showed a connection between the Nrf2/antioxidant response element (ARE) system and the expression of inflammatory mediators, NF-κB pathway and macrophage metabolism. This suggests a new strategy for designing chemical agents as modulators of Nrf2 dependent pathways to target the immune response. Therefore, the present review will examine the relationship between Nrf2 signaling and the inflammation as well as possible approaches for the therapeutic modulation of this pathway.
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218
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Quinovic Acid Impedes Cholesterol Dyshomeostasis, Oxidative Stress, and Neurodegeneration in an Amyloid- β-Induced Mouse Model. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:9523758. [PMID: 33274012 PMCID: PMC7700034 DOI: 10.1155/2020/9523758] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 10/18/2020] [Accepted: 10/28/2020] [Indexed: 02/06/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder typified by several neuropathological features including amyloid-beta (Aβ) plaque and neurofibrillary tangles (NFTs). Cholesterol retention and oxidative stress (OS) are the major contributors of elevated β- and γ-secretase activities, leading to excessive Aβ deposition, signifying the importance of altered cholesterol homeostasis and OS in the progression of Aβ-mediated neurodegeneration and cognitive deficit. However, the effect of Aβ on cholesterol metabolism is lesser-known. In this study, we evaluated the effect of quinovic acid (QA; 50 mg/kg body weight, i.p.) against the intracerebroventricular (i.c.v.) injection of Aβ (1-42)-induced cholesterol dyshomeostasis, oxidative stress, and neurodegeneration in the cortex and hippocampal brain regions of wild-type male C57BL/6J mice. Our results indicated that Aβ (1-42)-treated mice have increased Aβ oligomer formation along with increased β-secretase expression. The enhanced amyloidogenic pathway in Aβ (1-42)-treated mice intensified brain cholesterol accumulation due to increased expressions of p53 and 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR) enzyme. Importantly, we further confirmed the p53-mediated HMGCR axis activation by using pifithrin-α (PFT) in SH-SY5Y cells. Furthermore, the augmented brain cholesterol levels were also associated with increased OS. However, the QA administration to Aβ (1-42)-injected mice significantly ameliorated the Aβ burden, p53 expression, and cholesterol accumulation by deterring the oxidative stress through upregulating the Nrf2/HO-1 pathway. Moreover, the QA downregulated gliosis, neuroinflammatory mediators (p-NF-κB and IL-1β), and the expression of mitochondrial apoptotic markers (Bax, cleaved caspase-3, and cytochrome c). QA treatment also reversed the deregulated synaptic markers (PSD-95 and synaptophysin) and improved spatial learning and memory behaviors in the Aβ-treated mouse brains. These results suggest that Aβ (1-42) induces its acute detrimental effects on cognitive functions probably by increasing brain cholesterol levels through a possible activation of the p53/HMGCR axis. However, QA treatment reduces the cholesterol-induced oxidative stress, neuroinflammation, and neurodegeneration, leading to the restoration of cognitive deficit after Aβ (1-42) i.c.v. injection in mice.
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219
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Tamatam CM, Reddy NM, Potteti HR, Ankireddy A, Noone PM, Yamamoto M, Kensler TW, Reddy SP. Preconditioning the immature lung with enhanced Nrf2 activity protects against oxidant-induced hypoalveolarization in mice. Sci Rep 2020; 10:19034. [PMID: 33149211 PMCID: PMC7642393 DOI: 10.1038/s41598-020-75834-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 10/20/2020] [Indexed: 12/18/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic disease of preterm babies with poor clinical outcomes. Nrf2 transcription factor is crucial for cytoprotective response, whereas Keap1—an endogenous inhibitor of Nrf2 signaling—dampens these protective responses. Nrf2-sufficient (wild type) newborn mice exposed to hyperoxia develop hypoalveolarization, which phenocopies human BPD, and Nrf2 deficiency worsens it. In this study, we used PND1 pups bearing bearing hypomorphic Keap1 floxed alleles (Keap1f/f) with increased levels of Nrf2 to test the hypothesis that constitutive levels of Nrf2 in the premature lung are insufficient to mitigate hyperoxia-induced hypoalveolarization. Both wildtype and Keap1f/f pups at PND1 were exposed to hyperoxia for 72 h and then allowed to recover at room air for two weeks (at PND18), sacrificed, and lung hypoalveolarization and inflammation assessed. Hyperoxia-induced lung hypoalveolarization was remarkably lower in Keap1f/f pups than in wildtype counterparts (28.9% vs 2.4%, wildtype vs Keap1f/f). Likewise, Keap1f/f pups were protected against prolonged (96 h) hyperoxia-induced hypoalveolarization. However, there were no differences in hyperoxia-induced lung inflammatory response immediately after exposure or at PND18. Lack of hypoalveolarization in Keap1f/f pups was accompanied by increased levels of expression of antioxidant genes and GSH as assessed immediately following hyperoxia. Keap1 knockdown resulted in upregulation of lung cell proliferation postnatally but had opposing effects following hyperoxia. Collectively, our study demonstrates that augmenting endogenous Nrf2 activation by targeting Keap1 may provide a physiological way to prevent hypoalveolarization associated with prematurity.
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Affiliation(s)
- Chandra M Tamatam
- Department of Pediatrics, University of Illinois at Chicago, Chicago, IL, 60612, USA.
| | - Narsa M Reddy
- Department of Pediatrics, University of Illinois at Chicago, Chicago, IL, 60612, USA.,Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60612, USA
| | - Haranatha R Potteti
- Department of Pediatrics, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Aparna Ankireddy
- Department of Pediatrics, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Patrick M Noone
- Department of Pediatrics, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Masayuki Yamamoto
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
| | - Thomas W Kensler
- Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Sekhar P Reddy
- Department of Pediatrics, University of Illinois at Chicago, Chicago, IL, 60612, USA.
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220
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Xiong Y, Wang Y, Zhang J, Zhao N, Zhang H, Zhang A, Zhao D, Yu Z, Yin Y, Song L, Xiong Y, Luan X. hPMSCs protects against D-galactose-induced oxidative damage of CD4 + T cells through activating Akt-mediated Nrf2 antioxidant signaling. Stem Cell Res Ther 2020; 11:468. [PMID: 33148324 PMCID: PMC7641865 DOI: 10.1186/s13287-020-01993-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/22/2020] [Indexed: 12/27/2022] Open
Abstract
Background Mesenchymal stem cells (MSCs) were considered a regenerative therapeutic approach in both acute and chronic diseases. However, whether MSCs regulate the antioxidant metabolism of CD4+ T cells and weaken immunosenescence remains unclear. Here, we reported the protective effects of hPMSCs in aging-related CD4+ T cell senescence and identified the underlying mechanisms using a d-gal-induced mouse aging model. Methods In vivo study, 40 male C57BL/6 mice (8 weeks) were randomly divided into four groups: control group, d-gal group, hPMSC group, and PBS group. In in vitro experiment, human naive CD4+ T (CD4CD45RA) cells were prepared using a naive CD4+ T cell isolation kit II and pretreated with the Akt inhibitor LY294002 and Nrf2 inhibitor ML385. Then, isolated naive CD4+ T cell were co-cultured with hPMSCs for 72 h in the absence or presence of anti-CD3/CD28 Dynabeads and IL-2 as a mitogenic stimulus. Intracellular ROS changes were detected by flow cytometry. The activities of the antioxidant enzymes superoxide dismutase, glutathione peroxidase, and catalase were measured by colorimetric analysis. The senescent T cells were detected SA-β-gal stain. The expression of aging-related proteins was detected by Western blotting, RT-PCR, and confocal microscopy. Results We found that hPMSC treatment markedly decreased the ROS level, SA-β-gal-positive cells number, senescence-associated secretory phenotype (IL-6 and OPN) expression, and aging-related protein (P16 and P21) expression in senescent CD4+ T cells. Furthermore, hPMSC treatment effectively upregulated Nrf2 nuclear translocation and the expression of downstream target genes (HO-1, CAT, GCLC, and NQO1) in senescent CD4+ T cells. Moreover, in vitro studies revealed that hPMSCs attenuated CD4+ T cell senescence by upregulating the Akt/GSK-3β/Fyn pathway to activate Nrf2 functions. Conversely, the antioxidant effects of hPMSCs were blocked by the Akt inhibitor LY294002 and Nrf2 inhibitor ML385 in senescent CD4+ T cells. Conclusions Our results indicate that hPMSCs attenuate d-gal-induced CD4+ T cell senescence by activating Nrf2-mediated antioxidant defenses and that upregulation of Nrf2 by hPMSCs is regulated via the Akt/GSK-3β/Fyn pathway.
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Affiliation(s)
- Yanlian Xiong
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Yueming Wang
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Jiashen Zhang
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Nannan Zhao
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Hengchao Zhang
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Aiping Zhang
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Dongmei Zhao
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Zhenhai Yu
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Yancun Yin
- Department of Anatomy, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Lele Song
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China
| | - Yanlei Xiong
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing, People's Republic of China.
| | - Xiying Luan
- Department of Immunology, School of Basic Medicine, Binzhou Medical University, Yantai, People's Republic of China.
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Nakano-Kobayashi A, Fukumoto A, Morizane A, Nguyen DT, Le TM, Hashida K, Hosoya T, Takahashi R, Takahashi J, Hori O, Hagiwara M. Therapeutics potentiating microglial p21-Nrf2 axis can rescue neurodegeneration caused by neuroinflammation. SCIENCE ADVANCES 2020; 6:6/46/eabc1428. [PMID: 33188020 PMCID: PMC7673758 DOI: 10.1126/sciadv.abc1428] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 10/01/2020] [Indexed: 05/13/2023]
Abstract
Neurodegenerative disorders are caused by progressive neuronal loss, and there is no complete treatment available yet. Neuroinflammation is a common feature across neurodegenerative disorders and implicated in the progression of neurodegeneration. Dysregulated activation of microglia causes neuroinflammation and has been highlighted as a treatment target in therapeutic strategies. Here, we identified novel therapeutic candidate ALGERNON2 (altered generation of neurons 2) and demonstrate that ALGERNON2 suppressed the production of proinflammatory cytokines and rescued neurodegeneration in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced Parkinson's disease model. ALGERNON2 stabilized cyclinD1/p21 complex, leading to up-regulation of nuclear factor erythroid 2-related factor 2 (Nrf2), which contributes to antioxidative and anti-inflammatory responses. Notably, ALGERNON2 enhanced neuronal survival in other neuroinflammatory conditions such as the transplantation of induced pluripotent stem cell-derived dopaminergic neurons into murine brains. In conclusion, we present that the microglial potentiation of the p21-Nrf2 pathway can contribute to neuronal survival and provide novel therapeutic potential for neuroinflammation-triggered neurodegeneration.
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Affiliation(s)
- A Nakano-Kobayashi
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - A Fukumoto
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - A Morizane
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - D T Nguyen
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
| | - T M Le
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
| | - K Hashida
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
| | - T Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - R Takahashi
- Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - J Takahashi
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - O Hori
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
| | - M Hagiwara
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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Chadha S, Behl T, Kumar A, Khullar G, Arora S. Role of Nrf2 in rheumatoid arthritis. Curr Res Transl Med 2020; 68:171-181. [DOI: 10.1016/j.retram.2020.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 04/28/2020] [Accepted: 05/10/2020] [Indexed: 12/30/2022]
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223
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Luo YH, Cheng HJ, Tsai FY, Tsou TC, Lin SY, Lin P. Primary Amine Modified Gold Nanodots Regulate Macrophage Function and Antioxidant Response: Potential Therapeutics Targeting of Nrf2. Int J Nanomedicine 2020; 15:8411-8426. [PMID: 33149584 PMCID: PMC7605661 DOI: 10.2147/ijn.s268203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 10/02/2020] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Gold nanoparticles with high biocompatibility and immunomodulatory properties have potential applications in the development of new diagnostic and therapeutic strategies for nanomedicine. Nanoparticles targeting macrophages can manipulate or control immunological diseases. This study assessed the activity of dendrimer-encapsulated gold nanodots (AuNDs) with three surface modifications [ie, outfacing groups with primary amine (AuNDs-NH2), hydroxyl (AuNDs-OH), and quaternary ammonium ions (AuNDs-CH3)] regulated macrophage function and antioxidant response through Nrf2-dependent pathway. METHODS AuNDs were prepared and characterized. Intracellular distribution of AuNDs in human macrophages was observed through confocal microscopy. The activity of AuNDs was evaluated using macrophage functions and antioxidant response in the human macrophage cell line THP-1. RESULTS AuNDs-NH2 and AuNDs-CH3, but not AuNDs-OH, drove the obvious Nrf2-antioxidant response element pathway in THP-1 cells. Of the three, AuNDs-NH2 considerably increased mRNA levels and antioxidant activities of heme oxygenase 1 and NAD(P)H quinone dehydrogenase 1 in THP-1 cells. IL-6 mRNA and protein expression was mediated through Nrf2 activation in AuNDs-NH2-treated macrophages. Furthermore, Nrf2 activation by AuNDs-NH2 increased the phagocytic ability of THP-1 macrophages. CONCLUSION AuNDs-NH2 had immunomodulatory activities in macrophages. The findings of the present work suggested that AuNDs have potential effects against chronic inflammatory diseases via the Nrf2 pathway.
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Affiliation(s)
- Yueh-Hsia Luo
- Department of Life Sciences, National Central University, Taoyuan City32001, Taiwan
| | - Hsien-Jen Cheng
- National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Miaoli County35053, Taiwan
| | - Feng-Yuan Tsai
- National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Miaoli County35053, Taiwan
| | - Tsui-Chun Tsou
- National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Miaoli County35053, Taiwan
| | - Shu-Yi Lin
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan, Miaoli County35053, Taiwan
| | - Pinpin Lin
- National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Miaoli County35053, Taiwan
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224
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He F, Antonucci L, Karin M. NRF2 as a regulator of cell metabolism and inflammation in cancer. Carcinogenesis 2020; 41:405-416. [PMID: 32347301 DOI: 10.1093/carcin/bgaa039] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/11/2020] [Accepted: 04/21/2020] [Indexed: 12/14/2022] Open
Abstract
Nuclear factor erythroid 2-related factor 2 (NRF2) is a master transcriptional regulator of genes whose products defend our cells for toxic and oxidative insults. Although NRF2 activation may reduce cancer risk by suppressing oxidative stress and tumor-promoting inflammation, many cancers exhibit elevated NRF2 activity either due to mutations that disrupt the negative control of NRF2 activity or other factors. Importantly, NRF2 activation is associated with poor prognosis and NRF2 has turned out to be a key activator of cancer-supportive anabolic metabolism. In this review, we summarize the diverse roles played by NRF2 in cancer focusing on metabolic reprogramming and tumor-promoting inflammation.
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Affiliation(s)
- Feng He
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, San Diego, La Jolla, CA, USA
| | - Laura Antonucci
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, San Diego, La Jolla, CA, USA
| | - Michael Karin
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, San Diego, La Jolla, CA, USA.,Department of Pathology, School of Medicine, University of California, San Diego, La Jolla, CA, USA
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225
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Washington A, Varki N, Valderrama JA, Nizet V, Bui JD. Evaluation of IL-17D in Host Immunity to Group A Streptococcus Infection. THE JOURNAL OF IMMUNOLOGY 2020; 205:3122-3129. [PMID: 33077643 DOI: 10.4049/jimmunol.1901482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 09/22/2020] [Indexed: 02/06/2023]
Abstract
IL-17D is a cytokine that belongs to the IL-17 family and is conserved in vertebrates and invertebrates. In contrast to IL-17A and IL-17F, which are expressed in Th17 cells, IL-17D is expressed broadly in nonimmune cells. IL-17D can promote immune responses to cancer and viruses in part by inducing chemokines and recruiting innate immune cells such as NK cells. Although bacterial infection can induce IL-17D in fish and invertebrates, the role of mammalian IL-17D in antibacterial immunity has not been established. To determine whether IL-17D has a role in mediating host defense against bacterial infections, we studied i.p. infection by group A Streptococcus (GAS) in wild-type (WT) and Il17d -/- mice. Compared with WT animals, mice deficient in IL-17D experienced decreased survival, had greater weight loss, and showed increased bacterial burden in the kidney and peritoneal cavity following GAS challenge. In WT animals, IL-17D transcript was induced by GAS infection and correlated to increased levels of chemokine CCL2 and greater neutrophil recruitment. Of note, GAS-mediated IL-17D induction in nonimmune cells required live bacteria, suggesting that processes beyond recognition of pathogen-associated molecular patterns were required for IL-17D induction. Based on our results, we propose a model in which nonimmune cells can discriminate between nonviable and viable GAS cells, responding only to the latter by inducing IL-17D.
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Affiliation(s)
- Allen Washington
- Department of Pathology, University of California, San Diego, La Jolla, CA 92093
| | - Nissi Varki
- Department of Pathology, University of California, San Diego, La Jolla, CA 92093.,Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA 92093
| | - J Andrés Valderrama
- Department of Pediatrics, University of California, San Diego, La Jolla, CA 92161; and
| | - Victor Nizet
- Department of Pediatrics, University of California, San Diego, La Jolla, CA 92161; and.,Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA 92093
| | - Jack D Bui
- Department of Pathology, University of California, San Diego, La Jolla, CA 92093;
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226
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Yang T, Zhang F. Targeting Transcription Factor Nrf2 (Nuclear Factor Erythroid 2-Related Factor 2) for the Intervention of Vascular Cognitive Impairment and Dementia. Arterioscler Thromb Vasc Biol 2020; 41:97-116. [PMID: 33054394 DOI: 10.1161/atvbaha.120.314804] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Vascular cognitive impairment and dementia (VCID) is an age-related, mild to severe mental disability due to a broad panel of cerebrovascular disorders. Its pathobiology involves neurovascular dysfunction, blood-brain barrier disruption, white matter damage, microRNAs, oxidative stress, neuroinflammation, and gut microbiota alterations, etc. Nrf2 (Nuclear factor erythroid 2-related factor 2) is the master regulator of redox status and controls the transcription of a panel of antioxidative and anti-inflammatory genes. By interacting with NF-κB (nuclear factor-κB), Nrf2 also fine-tunes the cellular oxidative and inflammatory balance. Aging is associated with Nrf2 dysfunction, and increasing evidence has proved the role of Nrf2 in mitigating the VCID process. Based on VCID pathobiologies and Nrf2 studies from VCID and other brain diseases, we point out several hypothetical Nrf2 targets for VCID management, including restoration of endothelial function and neurovascular coupling, preservation of blood-brain barrier integrity, reduction of amyloidopathy, promoting white matter integrity, and mitigating oxidative stress and neuroinflammation. Collectively, the Nrf2 pathway could be a promising direction for future VCID research. Targeting Nrf2 would shed light on VCID managing strategies.
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Affiliation(s)
- Tuo Yang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, PA
| | - Feng Zhang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, PA
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227
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Environmental pollutants and the immune response. Nat Immunol 2020; 21:1486-1495. [PMID: 33046888 DOI: 10.1038/s41590-020-0802-6] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 09/01/2020] [Indexed: 12/13/2022]
Abstract
Environmental pollution is one of the most serious challenges to health in the modern world. Pollutants alter immune responses and can provoke immunotoxicity. In this Review, we summarize the major environmental pollutants that are attracting wide-ranging concern and the molecular basis underlying their effects on the immune system. Xenobiotic receptors, including the aryl hydrocarbon receptor (AHR), sense and respond to a subset of environmental pollutants by activating the expression of detoxification enzymes to protect the body. However, chronic activation of the AHR leads to immunotoxicity. KEAP1-NRF2 is another important system that protects the body against environmental pollutants. KEAP1 is a sensor protein that detects environmental pollutants, leading to activation of the transcription factor NRF2. NRF2 protects the body from immunotoxicity by inducing the expression of genes involved in detoxification, antioxidant and anti-inflammatory activities. Intervening in these sensor-response systems could protect the body from the devastating immunotoxicity that can be induced by environmental pollutants.
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228
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Dimethyl Itaconate Alleviates the Inflammatory Responses of Macrophages in Sepsis. Inflammation 2020; 44:549-557. [PMID: 33029757 DOI: 10.1007/s10753-020-01352-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/17/2020] [Accepted: 09/28/2020] [Indexed: 12/22/2022]
Abstract
Sepsis is an inflammatory disease characterized by dysregulation of inflammation. Macrophage-mediated inflammation has been implicated in the pathophysiology of sepsis. Itaconate is a metabolite produced in activated macrophages which has anti-inflammatory activities. In the present study, we investigated the potential effects of a cell-permeable itaconate derivative dimethyl itaconate on inflammation in sepsis. We established a lipopolysaccharide (LPS)-induced septic mouse model and administered dimethyl itaconate to the septic mice. The survival rate, serum level of pro-inflammatory cytokines, and lung pathology were evaluated. We also administered dimethyl itaconate to LPS-treated bone marrow-derived macrophages (BMDMs), and measured the cytokine production and Nrf2 expression. We also evaluated the effects of dimethyl itaconate on Nrf2-deficient mice. Administration of dimethyl itaconate enhanced survival rate, decreased serum level of TNF-α and IL-6, and ameliorated lung injury in septic mice. Dimethyl itaconate also suppressed LPS-induced production of TNF-α, IL-6, and NOS2 in BMDMs. Dimethyl itaconate activated Nrf2 and promoted the expression of Nrf2 and its downstream factor HO-1 and NQO-1. The regulatory activities of dimethyl itaconate on inflammatory cytokine production, mouse survival rate were abolished in septic Nrf2-/- mice. Dimethyl itaconate suppressed the inflammatory responses of macrophages in sepsis.
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229
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Mechanisms and therapeutic implications of RTA 408, an activator of Nrf2, in subarachnoid hemorrhage-induced delayed cerebral vasospasm and secondary brain injury. PLoS One 2020; 15:e0240122. [PMID: 33017422 PMCID: PMC7535038 DOI: 10.1371/journal.pone.0240122] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 09/18/2020] [Indexed: 01/05/2023] Open
Abstract
Objectives More and more evidence suggests oxidative stress and inflammation contribute importantly to subarachnoid hemorrhage (SAH)-induced cerebral vasospasm and secondary brain injury. Recent evidence indicates Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) increases the expression of antioxidant genes and decreases the expression of pro-inflammatory genes. This study examines the effects of an activator of Nfr2, RTA 408, on SAH-induced cerebral vasospasm and possible mechanism underlying its effect in a two-hemorrhage rodent model of SAH. Methods We randomly assigned 60 Sprague-Dawley male rats (350 to 420g) to five groups twelve rats each: one control group (no SAH), one untreated SAH only group and three RTA-408 treatment groups (SAH+ RTA 408 0.5 mg/kg/day, SAH+RTA 408 1 mg/kg/day and a SAH+RTA 408 1.5 mg/kg/day). The treatment groups were administered RTA 408 by intraperitoneal injection thirty min following first induction of SAH for seven days starting with first hemorrhage. Cerebral vasospasm was determined by averaging the cross-sectional areas of basilar artery 7 days after first SAH. Expressions of Nrf2, NF-κB and iNOS in basilar artery and expressions of Nrf2, HO-1, NQO1 and Cleaved caspase-3 were evaluated. Tissue TNF-alpha was assessed by ELISA using the protein sampled from the dentate gyrus, cerebral cortex, and hippocampus. Results Prior to perfusion fixation, there were no significant physiological differences among the control and treated groups. RTA 408 treatment attenuated the morphological changes caused by cerebral vasospasm. It mitigated SAH-induced suppression of Nrf2 and increased expression of NF-κB and iNOS in the basilar artery. In dentate gyrus, it reversed SAH-decreases in Nrf2, HO-1, NQO-1 and cleaved caspase-3 and RTA 408 1.5 mg/kg/day reversed SAH increases in TNF-alpha. Conclusion It was concluded that RTA 408 reversal vasospasm was achieved via increases in Nrf2 and decreases in NF-κB and iNOS. It exerted a neuron-protection effect by decreasing the apoptosis-related protein cleaved caspase-3 and decreasing the information cytokine TNF-alpha expression, which it achieved by increasing HO-1 and NQO-1 protein found downstream from Nrf2 and Nrf2. We believe that RTA 408 can potentially be used to manage of cerebral vasospasm and secondary brain injury following SAH.
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230
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Olagnier D, Farahani E, Thyrsted J, Blay-Cadanet J, Herengt A, Idorn M, Hait A, Hernaez B, Knudsen A, Iversen MB, Schilling M, Jørgensen SE, Thomsen M, Reinert LS, Lappe M, Hoang HD, Gilchrist VH, Hansen AL, Ottosen R, Nielsen CG, Møller C, van der Horst D, Peri S, Balachandran S, Huang J, Jakobsen M, Svenningsen EB, Poulsen TB, Bartsch L, Thielke AL, Luo Y, Alain T, Rehwinkel J, Alcamí A, Hiscott J, Mogensen TH, Paludan SR, Holm CK. SARS-CoV2-mediated suppression of NRF2-signaling reveals potent antiviral and anti-inflammatory activity of 4-octyl-itaconate and dimethyl fumarate. Nat Commun 2020; 11:4938. [PMID: 33009401 PMCID: PMC7532469 DOI: 10.1038/s41467-020-18764-3] [Citation(s) in RCA: 248] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023] Open
Abstract
Antiviral strategies to inhibit Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV2) and the pathogenic consequences of COVID-19 are urgently required. Here, we demonstrate that the NRF2 antioxidant gene expression pathway is suppressed in biopsies obtained from COVID-19 patients. Further, we uncover that NRF2 agonists 4-octyl-itaconate (4-OI) and the clinically approved dimethyl fumarate (DMF) induce a cellular antiviral program that potently inhibits replication of SARS-CoV2 across cell lines. The inhibitory effect of 4-OI and DMF extends to the replication of several other pathogenic viruses including Herpes Simplex Virus-1 and-2, Vaccinia virus, and Zika virus through a type I interferon (IFN)-independent mechanism. In addition, 4-OI and DMF limit host inflammatory responses to SARS-CoV2 infection associated with airway COVID-19 pathology. In conclusion, NRF2 agonists 4-OI and DMF induce a distinct IFN-independent antiviral program that is broadly effective in limiting virus replication and in suppressing the pro-inflammatory responses of human pathogenic viruses, including SARS-CoV2.
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Affiliation(s)
- David Olagnier
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark.
| | - Ensieh Farahani
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Jacob Thyrsted
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Julia Blay-Cadanet
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Angela Herengt
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Manja Idorn
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Alon Hait
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Bruno Hernaez
- Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid), Nicolás Cabrera 1, 28049, Madrid, Spain
| | - Alice Knudsen
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Marie Beck Iversen
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Mirjam Schilling
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Sofie E Jørgensen
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Michelle Thomsen
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Line S Reinert
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | | | - Huy-Dung Hoang
- Children's Hospital of Eastern Ontario Research Institute, Department of Biochemistry Microbiology and Immunology, University of Ottawa, Ottawa, ON, K1H 8L1, Canada
| | - Victoria H Gilchrist
- Children's Hospital of Eastern Ontario Research Institute, Department of Biochemistry Microbiology and Immunology, University of Ottawa, Ottawa, ON, K1H 8L1, Canada
| | - Anne Louise Hansen
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Rasmus Ottosen
- Department of Chemistry, Aarhus University, Aarhus, Denmark
| | - Camilla G Nielsen
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Charlotte Møller
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Demi van der Horst
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Suraj Peri
- Fox Chase Cancer Center, 333 Cottman Avenue, Philidelphia, PA, 19111-2497, USA
| | | | - Jinrong Huang
- Lars Bolund Institute of Regenerative Medicine, BGI-Shenzhen, Shenzhen, 518083, China
- Department of Biology, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Martin Jakobsen
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | | | | | - Lydia Bartsch
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Neurology, University Medical Center Göttingen, 37075, Göttingen, Germany
| | - Anne L Thielke
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Yonglun Luo
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
- Lars Bolund Institute of Regenerative Medicine, BGI-Shenzhen, Shenzhen, 518083, China
| | - Tommy Alain
- Children's Hospital of Eastern Ontario Research Institute, Department of Biochemistry Microbiology and Immunology, University of Ottawa, Ottawa, ON, K1H 8L1, Canada
| | - Jan Rehwinkel
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Antonio Alcamí
- Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid), Nicolás Cabrera 1, 28049, Madrid, Spain
| | - John Hiscott
- Istituto Pasteur Italia-Cenci Bolognetti Foundation, Viale Regina Elena 291, 00161, Rome, Italy
| | - Trine H Mogensen
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Søren R Paludan
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark
| | - Christian K Holm
- Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark.
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231
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Yi Z, Deng M, Scott MJ, Fu G, Loughran PA, Lei Z, Li S, Sun P, Yang C, Li W, Xu H, Huang F, Billiar TR. Immune-Responsive Gene 1/Itaconate Activates Nuclear Factor Erythroid 2-Related Factor 2 in Hepatocytes to Protect Against Liver Ischemia-Reperfusion Injury. Hepatology 2020; 72:1394-1411. [PMID: 31997373 PMCID: PMC7702080 DOI: 10.1002/hep.31147] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 12/23/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Itaconate, a metabolite of the tricarboxylic acid cycle, plays anti-inflammatory roles in macrophages during endotoxemia. The mechanisms underlying its anti-inflammatory roles have been shown to be mediated by the modulation of oxidative stress, an important mechanism of hepatic ischemia-reperfusion (I/R) injury. However, the role of itaconate in liver I/R injury is unknown. APPROACH AND RESULTS We found that deletion of immune-responsive gene 1 (IRG1), encoding for the enzyme producing itaconate, exacerbated liver injury and systemic inflammation. Furthermore, bone marrow adoptive transfer experiments indicated that deletion of IRG1 in both hematopoietic and nonhematopoietic compartments contributes to the protection mediated by IRG1 after I/R. Interestingly, the expression of IRG1 was up-regulated in hepatocytes after I/R and hypoxia/reoxygenation-induced oxidative stress. Modulation of the IRG1 expression levels in hepatocytes regulated hepatocyte cell death. Importantly, addition of 4-octyl itaconate significantly improved liver injury and hepatocyte cell death after I/R. Furthermore, our data indicated that nuclear factor erythroid 2-related factor 2 (Nrf2) is required for the protective effect of IRG1 on mouse and human hepatocytes against oxidative stress-induced injury. Our studies document the important role of IRG1 in the acute setting of sterile injury induced by I/R. Specifically, we provide evidence that the IRG1/itaconate pathway activates Nrf2-mediated antioxidative response in hepatocytes to protect liver from I/R injury. CONCLUSIONS Our data expand on the importance of IRG1/itaconate in nonimmune cells and identify itaconate as a potential therapeutic strategy for this unfavorable postsurgical complication.
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Affiliation(s)
- Zhongjie Yi
- Department of Hepatobiliary SurgeryThe Third Xiangya HospitalCentral South UniversityChangshaChina,Department of SurgeryUniversity of PittsburghPittsburghPA
| | - Meihong Deng
- Department of SurgeryUniversity of PittsburghPittsburghPA
| | - Melanie J. Scott
- Department of SurgeryUniversity of PittsburghPittsburghPA,Pittsburgh Liver Research CenterUniversity of PittsburghPittsburghPA
| | - Guang Fu
- Department of Hepatobiliary SurgeryThe Third Xiangya HospitalCentral South UniversityChangshaChina,Department of SurgeryUniversity of PittsburghPittsburghPA
| | - Patricia A. Loughran
- Department of SurgeryUniversity of PittsburghPittsburghPA,Center for Biological ImagingUniversity of PittsburghPittsburghPA
| | - Zhao Lei
- Department of Hepatobiliary SurgeryThe Third Xiangya HospitalCentral South UniversityChangshaChina,Department of SurgeryUniversity of PittsburghPittsburghPA
| | - Shilai Li
- Department of SurgeryUniversity of PittsburghPittsburghPA,Department of EmergencyThe First Affiliated Hospital of Guangxi Medical UniversityNanningChina
| | - Ping Sun
- Department of SurgeryUniversity of PittsburghPittsburghPA,Department of Hepatobiliary SurgeryUnion HospitalHuazhong University of Science and TechnologyWuhanChina
| | - Chenxuan Yang
- Department of SurgeryUniversity of PittsburghPittsburghPA,School of MedicineStudent at Tsinghua UniversityBeijingChina
| | - Wenbo Li
- Department of Hepatobiliary SurgeryThe Third Xiangya HospitalCentral South UniversityChangshaChina,Department of SurgeryUniversity of PittsburghPittsburghPA
| | - Hongbo Xu
- Department of SurgeryUniversity of PittsburghPittsburghPA
| | - Feizhou Huang
- Department of Hepatobiliary SurgeryThe Third Xiangya HospitalCentral South UniversityChangshaChina
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232
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Arab HH, Saad MA, El-Sahar AE, Al-Shorbagy MY. Mechanistic perspective of morin protection against ketoprofen-induced gastric mucosal injury: Targeting HMGB1/RAGE/NF-κB, DJ-1/Nrf2/HO-1 and PI3K/mTOR pathways. Arch Biochem Biophys 2020; 693:108552. [DOI: 10.1016/j.abb.2020.108552] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/13/2020] [Accepted: 08/21/2020] [Indexed: 02/07/2023]
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233
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Bao K, Chen TL, Zhang S, Huang ZZ, Huang YF, Huang ZH, Zhu YY, Wu QN, Duan JA, Zhang ZZ, Wu CJ, Ding QQ. A succinyl isoflavone identified in natto promotes anti-ischemic effects in the middle cerebral artery occlusion rats. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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234
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Lactobacillus reuteri DSM 17938 and ATCC PTA 5289 ameliorates chemotherapy-induced oral mucositis. Sci Rep 2020; 10:16189. [PMID: 33004948 PMCID: PMC7530769 DOI: 10.1038/s41598-020-73292-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 09/11/2020] [Indexed: 01/20/2023] Open
Abstract
Oral mucositis (OM) is a common complication of cancer therapy, however OM management remains unsatisfactory. There is a growing interest in the therapeutic potential of probiotics in OM due to positive findings of its use in intestinal mucositis. This study aimed to determine the efficacy and safety of the probiotic combination Lactobacillus reuteri DSM 17938 and ATCC PTA 5289 strains in chemotherapy-induced OM. Mice were divided into 4 groups. PBS/water and PBS/LR groups comprised of mice injected with PBS intraperitoneally (i.p.), and were given water or the mixture of L. reuteri (LR) DSM 17938 and ATCC PTA 5289 in water respectively. The 5-FU/water and 5-FU/LR groups comprised of mice injected with 5-FU i.p., and were given water or L. reuteri DSM 17938 and ATCC PTA 5289 in water respectively. Histopathological analysis revealed that the oral epithelia of the 5-FU/water and 5-FU/LR groups were thinner compared to PBS/water and PBS/LR groups. However, epithelial damage was significantly reduced in the 5-FU/LR compared to 5-FU/water group. Additionally, the 5-FU/LR group showed reduced oxidative stress and inflammation in the oral mucosa. We further showed that L. reuteri reduced oxidative stress through the nuclear factor E2-related factor-2 (Nrf-2) signalling. There was no evidence of translocation of L. reuteri systemically. This study demonstrated for the first time that L. reuteri protected oral mucosa against damage induced by chemotherapy.
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235
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Kim RE, Shin CY, Han SH, Kwon KJ. Astaxanthin Suppresses PM2.5-Induced Neuroinflammation by Regulating Akt Phosphorylation in BV-2 Microglial Cells. Int J Mol Sci 2020; 21:ijms21197227. [PMID: 33008094 PMCID: PMC7582569 DOI: 10.3390/ijms21197227] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/25/2020] [Accepted: 09/28/2020] [Indexed: 12/11/2022] Open
Abstract
Air pollution has become one of the most serious issues for human health and has been shown to be particularly concerning for neural and cognitive health. Recent studies suggest that fine particulate matter of less than 2.5 (PM2.5), common in air pollution, can reach the brain, potentially resulting in the development and acceleration of various neurological disorders including Alzheimer’s disease, Parkinson’s disease, and other forms of dementia, but the underlying pathological mechanisms are not clear. Astaxanthin is a red-colored phytonutrient carotenoid that has been known for anti-inflammatory and neuroprotective effects. In this study, we demonstrated that exposure to PM2.5 increases the neuroinflammation, the expression of proinflammatory M1, and disease-associated microglia (DAM) signature markers in microglial cells, and that treatment with astaxanthin can prevent the neurotoxic effects of this exposure through anti-inflammatory properties. Diesel particulate matter (Sigma-Aldrich) was used as a fine particulate matter 2.5 in the present study. Cultured rat glial cells and BV-2 microglial cells were treated with various concentrations of PM2.5, and then the expression of various inflammatory mediators and signaling pathways were measured using qRT-PCR and Western blot. Astaxanthin was then added and assayed as above to evaluate its effects on microglial changes, inflammation, and toxicity induced by PM2.5. PM2.5 increased the production of nitric oxide and reactive oxygen species and upregulated the transcription of various proinflammatory markers including Interleukin-1β (IL-1β), Interleukin-6 (IL-6), Tumor necrosis factor α (TNFα), inducible nitric oxide synthase (iNOS), triggering receptor expressed on myeloid cells 2 (TREM2), Toll-like receptor 2/4 (TLR2/4), and cyclooxygenase-2 (COX-2) in BV-2 microglial cells. However, the mRNA expression of IL-10 and arginase-1 decreased following PM2.5 treatment. PM2.5 treatment increased c-Jun N-terminal kinases (JNK) phosphorylation and decreased Akt phosphorylation. Astaxanthin attenuated these PM2.5-induced responses, reducing transcription of the proinflammatory markers iNOS and heme oxygenase-1 (HO-1), which prevented neuronal cell death. Our results indicate that PM2.5 exposure reformulates microglia via proinflammatory M1 and DAM phenotype, leading to neurotoxicity, and the fact that astaxanthin treatment can prevent neurotoxicity by inhibiting transition to the proinflammatory M1 and DAM phenotypes. These results demonstrate that PM2.5 exposure can induce brain damage through the change of proinflammatory M1 and DAM signatures in the microglial cells, as well as the fact that astaxanthin can have a potential beneficial effect on PM2.5 exposure of the brain.
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Affiliation(s)
- Ryeong-Eun Kim
- Department of Neuroscience, School of Medicine, Konkuk University, Seoul 05029, Korea; (R.-E.K.); (S.-H.H.)
| | - Chan Young Shin
- Department of Pharmacology, School of Medicine, Konkuk University, Seoul 05029, Korea;
| | - Seol-Heui Han
- Department of Neuroscience, School of Medicine, Konkuk University, Seoul 05029, Korea; (R.-E.K.); (S.-H.H.)
- Department of Neurology, Konkuk Hospital Medical Center, 120-1 Neungdong-ro, Gwangjin-Gu, Seoul 05030, Korea
| | - Kyoung Ja Kwon
- Department of Neuroscience, School of Medicine, Konkuk University, Seoul 05029, Korea; (R.-E.K.); (S.-H.H.)
- Department of Neurology, Konkuk Hospital Medical Center, 120-1 Neungdong-ro, Gwangjin-Gu, Seoul 05030, Korea
- Correspondence: ; Tel.: +82-2-454-5630; Fax: +82-2030-7899
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236
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Gopallawa I, Lee RJ. Targeting the phosphoinositide-3-kinase/protein kinase B pathway in airway innate immunity. World J Biol Chem 2020; 11:30-51. [PMID: 33024516 PMCID: PMC7520643 DOI: 10.4331/wjbc.v11.i2.30] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/24/2020] [Accepted: 08/26/2020] [Indexed: 02/06/2023] Open
Abstract
The airway innate immune system maintains the first line of defense against respiratory infections. The airway epithelium and associated immune cells protect the respiratory system from inhaled foreign organisms. These cells sense pathogens via activation of receptors like toll-like receptors and taste family 2 receptors (T2Rs) and respond by producing antimicrobials, inflammatory cytokines, and chemokines. Coordinated regulation of fluid secretion and ciliary beating facilitates clearance of pathogens via mucociliary transport. Airway cells also secrete antimicrobial peptides and radicals to directly kill microorganisms and inactivate viruses. The phosphoinositide-3-kinase/protein kinase B (Akt) kinase pathway regulates multiple cellular targets that modulate cell survival and proliferation. Akt also regulates proteins involved in innate immune pathways. Akt phosphorylates endothelial nitric oxide synthase (eNOS) enzymes expressed in airway epithelial cells. Activation of eNOS can have anti-inflammatory, anti-bacterial, and anti-viral roles. Moreover, Akt can increase the activity of the transcription factor nuclear factor erythroid 2 related factor-2 that protects cells from oxidative stress and may limit inflammation. In this review, we summarize the recent findings of non-cancerous functions of Akt signaling in airway innate host defense mechanisms, including an overview of several known downstream targets of Akt involved in innate immunity.
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Affiliation(s)
- Indiwari Gopallawa
- Department of Otorhinolaryngology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Robert J Lee
- Department of Otorhinolaryngology and Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States
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237
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Calcagno DM, Ng RP, Toomu A, Zhang C, Huang K, Aguirre AD, Weissleder R, Daniels LB, Fu Z, King KR. The myeloid type I interferon response to myocardial infarction begins in bone marrow and is regulated by Nrf2-activated macrophages. Sci Immunol 2020; 5:5/51/eaaz1974. [PMID: 32978242 DOI: 10.1126/sciimmunol.aaz1974] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 09/03/2020] [Indexed: 12/27/2022]
Abstract
Sterile tissue injury is thought to locally activate innate immune responses via damage-associated molecular patterns (DAMPs). Whether innate immune pathways are remotely activated remains relatively unexplored. Here, by analyzing ~145,000 single-cell transcriptomes at steady state and after myocardial infarction (MI) in mice and humans, we show that the type I interferon (IFN) response, characterized by expression of IFN-stimulated genes (ISGs), begins far from the site of injury, in neutrophil and monocyte progenitors within the bone marrow. In the peripheral blood of patients, we observed defined subsets of ISG-expressing neutrophils and monocytes. In the bone marrow and blood of mice, ISG expression was detected in neutrophils and monocytes and their progenitors, intensified with maturation at steady-state and after MI, and was controlled by Tet2 and Irf3 transcriptional regulators. Within the infarcted heart, ISG-expressing cells were negatively regulated by Nrf2 activation in Ccr2- steady-state cardiac macrophages. Our results show that IFN signaling begins in the bone marrow, implicate multiple transcriptional regulators (Tet2, Irf3, and Nrf2) in governing ISG expression, and provide a clinical biomarker (ISG score) for studying IFN signaling in patients.
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Affiliation(s)
- David M Calcagno
- Department of Bioengineering, Jacobs School of Engineering, University of California San Diego, La Jolla, CA, USA
| | - Richard P Ng
- Division of Cardiology and Cardiovascular Institute, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Avinash Toomu
- Division of Cardiology and Cardiovascular Institute, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Claire Zhang
- Department of Bioengineering, Jacobs School of Engineering, University of California San Diego, La Jolla, CA, USA
| | - Kenneth Huang
- Division of Cardiology and Cardiovascular Institute, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Aaron D Aguirre
- Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Lori B Daniels
- Division of Cardiology and Cardiovascular Institute, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Zhenxing Fu
- Division of Cardiology and Cardiovascular Institute, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Kevin R King
- Department of Bioengineering, Jacobs School of Engineering, University of California San Diego, La Jolla, CA, USA. .,Division of Cardiology and Cardiovascular Institute, Department of Medicine, University of California San Diego, La Jolla, CA, USA
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238
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Torrente L, Maan G, Oumkaltoum Rezig A, Quinn J, Jackson A, Grilli A, Casares L, Zhang Y, Kulesskiy E, Saarela J, Bicciato S, Edwards J, Dinkova-Kostova AT, de la Vega L. High NRF2 Levels Correlate with Poor Prognosis in Colorectal Cancer Patients and with Sensitivity to the Kinase Inhibitor AT9283 In Vitro. Biomolecules 2020; 10:E1365. [PMID: 32992842 PMCID: PMC7600603 DOI: 10.3390/biom10101365] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/15/2020] [Accepted: 09/19/2020] [Indexed: 12/31/2022] Open
Abstract
Aberrant hyperactivation of nuclear factor erythroid 2 (NF-E2) p45-related factor 2 (NRF2) is a common event in many tumour types and associates with resistance to therapy and poor patient prognosis; however, its relevance in colorectal tumours is not well-established. Measuring the expression of surrogate genes for NRF2 activity in silico, in combination with validation in patients' samples, we show that the NRF2 pathway is upregulated in colorectal tumours and that high levels of nuclear NRF2 correlate with a poor patient prognosis. These results highlight the need to overcome the protection provided by NRF2 and present an opportunity to selectively kill cancer cells with hyperactive NRF2. Exploiting the CRISPR/Cas9 technology, we generated colorectal cancer cell lines with hyperactive NRF2 and used them to perform a drug screen. We identified AT9283, an Aurora kinase inhibitor, for its selectivity towards killing cancer cells with hyperactive NRF2 as a consequence to either genetic or pharmacological activation. Our results show that hyperactivation of NRF2 in colorectal cancer cells might present a vulnerability that could potentially be therapeutically exploited by using the Aurora kinase inhibitor AT9283.
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Affiliation(s)
- Laura Torrente
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK; (L.T.); (G.M.); (A.J.); (L.C.); (Y.Z.); (A.T.D.-K.)
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Gunjit Maan
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK; (L.T.); (G.M.); (A.J.); (L.C.); (Y.Z.); (A.T.D.-K.)
| | - Asma Oumkaltoum Rezig
- Unit of Gastrointestinal Oncology and Molecular Pathology, Institute of Cancer Sciences, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow G61 1QH, UK; (A.O.R.); (J.Q.); (J.E.)
| | - Jean Quinn
- Unit of Gastrointestinal Oncology and Molecular Pathology, Institute of Cancer Sciences, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow G61 1QH, UK; (A.O.R.); (J.Q.); (J.E.)
| | - Angus Jackson
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK; (L.T.); (G.M.); (A.J.); (L.C.); (Y.Z.); (A.T.D.-K.)
| | - Andrea Grilli
- Department of Life Sciences, University of Modena and Reggio Emilia; via G, Campi 287, 41125 Modena, Italy; (A.G.); (S.B.)
| | - Laura Casares
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK; (L.T.); (G.M.); (A.J.); (L.C.); (Y.Z.); (A.T.D.-K.)
| | - Ying Zhang
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK; (L.T.); (G.M.); (A.J.); (L.C.); (Y.Z.); (A.T.D.-K.)
| | - Evgeny Kulesskiy
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Tukholmankatu 8, FI-00290 Helsinki, Finland; (E.K.); (J.S.)
| | - Jani Saarela
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Tukholmankatu 8, FI-00290 Helsinki, Finland; (E.K.); (J.S.)
| | - Silvio Bicciato
- Department of Life Sciences, University of Modena and Reggio Emilia; via G, Campi 287, 41125 Modena, Italy; (A.G.); (S.B.)
| | - Joanne Edwards
- Unit of Gastrointestinal Oncology and Molecular Pathology, Institute of Cancer Sciences, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow G61 1QH, UK; (A.O.R.); (J.Q.); (J.E.)
| | - Albena T. Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK; (L.T.); (G.M.); (A.J.); (L.C.); (Y.Z.); (A.T.D.-K.)
- Departments of Medicine and Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Laureano de la Vega
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK; (L.T.); (G.M.); (A.J.); (L.C.); (Y.Z.); (A.T.D.-K.)
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Park PSU, Mun SH, Zeng SL, Kim H, Bae S, Park-Min KH. NRF2 Is an Upstream Regulator of MYC-Mediated Osteoclastogenesis and Pathological Bone Erosion. Cells 2020; 9:E2133. [PMID: 32967239 PMCID: PMC7564846 DOI: 10.3390/cells9092133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/07/2020] [Accepted: 09/17/2020] [Indexed: 12/30/2022] Open
Abstract
Osteoclasts are the sole bone-resorbing cells that play an essential role in homeostatic bone remodeling and pathogenic bone destruction such as inflammatory arthritis. Pharmacologically targeting osteoclasts has been a promising approach to alleviating bone disease, but there remains room for improvement in mitigating drug side effects and enhancing cell specificity. Recently, we demonstrated the crucial role of MYC and its downstream effectors in driving osteoclast differentiation. Despite these advances, upstream regulators of MYC have not been well defined. In this study, we identify nuclear factor erythroid 2-related factor 2 (NRF2), a transcription factor known to regulate the expression of phase II antioxidant enzymes, as a novel upstream regulator of MYC. NRF2 negatively regulates receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclastogenesis through the ERK and p38 signaling-mediated suppression of MYC transcription. Furthermore, the ablation of MYC in osteoclasts reverses the enhanced osteoclast differentiation and activity in NRF2 deficiency in vivo and in vitro in addition to protecting NRF2-deficient mice from pathological bone loss in a murine model of inflammatory arthritis. Our findings indicate that this novel NRF2-MYC axis could be instrumental for the fine-tuning of osteoclast formation and provides additional ways in which osteoclasts could be therapeutically targeted to prevent pathological bone erosion.
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Affiliation(s)
- Peter Sang Uk Park
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021, USA; (P.S.U.P.); (S.H.M.); (S.L.Z.); (H.K.)
| | - Se Hwan Mun
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021, USA; (P.S.U.P.); (S.H.M.); (S.L.Z.); (H.K.)
| | - Steven L. Zeng
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021, USA; (P.S.U.P.); (S.H.M.); (S.L.Z.); (H.K.)
| | - Haemin Kim
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021, USA; (P.S.U.P.); (S.H.M.); (S.L.Z.); (H.K.)
- Department of Medicine, Weill Cornell Medical College, New York, NY 10021, USA
| | - Seyeon Bae
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021, USA; (P.S.U.P.); (S.H.M.); (S.L.Z.); (H.K.)
- Department of Medicine, Weill Cornell Medical College, New York, NY 10021, USA
| | - Kyung-Hyun Park-Min
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021, USA; (P.S.U.P.); (S.H.M.); (S.L.Z.); (H.K.)
- Department of Medicine, Weill Cornell Medical College, New York, NY 10021, USA
- BCMB Allied Program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10021, USA
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240
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Chartoumpekis DV, Ziros PG, Georgakopoulos-Soares I, Smith AAT, Marques AC, Ibberson M, A. Kopp P, Habeos I, Trougakos IP, Khoo NKH, Sykiotis GP. The Transcriptomic Response of the Murine Thyroid Gland to Iodide Overload and the Role of the Nrf2 Antioxidant System. Antioxidants (Basel) 2020; 9:antiox9090884. [PMID: 32961913 PMCID: PMC7555824 DOI: 10.3390/antiox9090884] [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: 08/31/2020] [Revised: 09/16/2020] [Accepted: 09/16/2020] [Indexed: 12/23/2022] Open
Abstract
Background: Thyroid follicular cells have physiologically high levels of reactive oxygen species because oxidation of iodide is essential for the iodination of thyroglobulin (Tg) during thyroid hormone synthesis. Thyroid follicles (the functional units of the thyroid) also utilize incompletely understood autoregulatory mechanisms to defend against exposure to excess iodide. To date, no transcriptomic studies have investigated these phenomena in vivo. Nuclear erythroid factor 2 like 2 (Nrf2 or Nfe2l2) is a transcription factor that regulates the expression of numerous antioxidant and other cytoprotective genes. We showed previously that the Nrf2 pathway regulates the antioxidant defense of follicular cells, as well as Tg transcription and Tg iodination. We, thus, hypothesized that Nrf2 might be involved in the transcriptional response to iodide overload. Methods: C57BL6/J wild-type (WT) or Nrf2 knockout (KO) male mice were administered regular water or water supplemented with 0.05% sodium iodide for seven days. RNA from their thyroids was prepared for next-generation RNA sequencing (RNA-Seq). Gene expression changes were assessed and pathway analyses were performed on the sets of differentially expressed genes. Results: Analysis of differentially expressed messenger RNAs (mRNAs) indicated that iodide overload upregulates inflammatory-, immune-, fibrosis- and oxidative stress-related pathways, including the Nrf2 pathway. Nrf2 KO mice showed a more pronounced inflammatory–autoimmune transcriptional response to iodide than WT mice. Compared to previously published datasets, the response patterns observed in WT mice had strong similarities with the patterns typical of Graves’ disease and papillary thyroid carcinoma (PTC). Long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) also responded to iodide overload, with the latter targeting mRNAs that participate mainly in inflammation pathways. Conclusions: Iodide overload induces the Nrf2 cytoprotective response and upregulates inflammatory, immune, and fibrosis pathways similar to autoimmune hyperthyroidism (Graves’ disease) and PTC.
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Affiliation(s)
- Dionysios V. Chartoumpekis
- Service of Endocrinology and Diabetology, Lausanne University Hospital, and Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (D.V.C.); (P.G.Z.); (P.A.K.)
- Division of Endocrinology, Department of Internal Medicine, University of Patras, 26504 Patras, Greece;
| | - Panos G. Ziros
- Service of Endocrinology and Diabetology, Lausanne University Hospital, and Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (D.V.C.); (P.G.Z.); (P.A.K.)
| | - Ilias Georgakopoulos-Soares
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA 94158, USA;
- Institute for Human Genetics, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Adam A. T. Smith
- Department of Computational Biology, University of Lausanne, 1015 Lausanne, Switzerland; (A.A.T.S.); (A.C.M.)
| | - Ana Claudia Marques
- Department of Computational Biology, University of Lausanne, 1015 Lausanne, Switzerland; (A.A.T.S.); (A.C.M.)
| | - Mark Ibberson
- Vital-IT Group, Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland;
| | - Peter A. Kopp
- Service of Endocrinology and Diabetology, Lausanne University Hospital, and Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (D.V.C.); (P.G.Z.); (P.A.K.)
| | - Ioannis Habeos
- Division of Endocrinology, Department of Internal Medicine, University of Patras, 26504 Patras, Greece;
| | - Ioannis P. Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, 15784 Athens, Greece;
| | - Nicholas K. H. Khoo
- Department of Pharmacology & Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA;
| | - Gerasimos P. Sykiotis
- Service of Endocrinology and Diabetology, Lausanne University Hospital, and Faculty of Biology and Medicine, University of Lausanne, 1011 Lausanne, Switzerland; (D.V.C.); (P.G.Z.); (P.A.K.)
- Correspondence: ; Tel.: +41-21-314-0606
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Pathogenic Mechanisms of Myeloma Bone Disease and Possible Roles for NRF2. Int J Mol Sci 2020; 21:ijms21186723. [PMID: 32937821 PMCID: PMC7555756 DOI: 10.3390/ijms21186723] [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: 07/29/2020] [Revised: 09/07/2020] [Accepted: 09/12/2020] [Indexed: 12/14/2022] Open
Abstract
Osteolytic bone lesions are one of the central features of multiple myeloma (MM) and lead to bone pain, fractures, decreased quality of life, and decreased survival. Dysfunction of the osteoclast (OC)/osteoblast (OB) axis plays a key role in the development of myeloma-associated osteolytic lesions. Many signaling pathways and factors are associated with myeloma bone diseases (MBDs), including the RANKL/OPG and NF-κB pathways. NRF2, a master regulator of inflammatory signaling, might play a role in the regulation of bone metabolism via anti-inflammatory signaling and decreased reactive oxygen species (ROS) levels. The loss of NRF2 expression in OCs reduced bone mass via the RANK/RANKL pathway and other downstream signaling pathways that affect osteoclastogenesis. The NRF2 level in OBs could interfere with interleukin (IL)-6 expression, which is associated with bone metabolism and myeloma cells. In addition to direct impact on OCs and OBs, the activity of NRF2 on myeloma cells and mesenchymal stromal cells influences the inflammatory stress/ROS level in these cells, which has an impact on OCs, OBs, and osteocytes. The interaction between these cells and OCs affects the osteoclastogenesis of myeloma bone lesions associated with NRF2. Therefore, we have reviewed the effects of NRF2 on OCs and OBs in MBDs.
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Alcaraz MJ, Ferrándiz ML. Relevance of Nrf2 and heme oxygenase-1 in articular diseases. Free Radic Biol Med 2020; 157:83-93. [PMID: 31830562 DOI: 10.1016/j.freeradbiomed.2019.12.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/04/2019] [Accepted: 12/07/2019] [Indexed: 02/08/2023]
Abstract
Joint conditions pose an important public health problem as they are a leading cause of pain, functional limitation and physical disability. Oxidative stress is related to the pathogenesis of many chronic diseases affecting the joints such as rheumatoid arthritis and osteoarthritis. Cells have developed adaptive protection mechanisms to maintain homeostasis such as nuclear factor erythroid 2 (NF-E2)-related factor 2 (Nrf2) which regulates the transcription of many genes involved in redox balance, detoxification, metabolism and inflammation. Activation of Nrf2 results in the synthesis of heme oxygenase-1 (HO-1) leading to the formation of a number of bioactive metabolites, mainly CO, biliverdin and bilirubin. Ample evidence supports the notion that Nrf2 and HO-1 can confer protection against oxidative stress and inflammatory and immune responses in joint tissues. As a consequence, this pathway may control the activation and metabolism of articular cells to play a regulatory role in joint destruction thus offering new opportunities for better treatments. Further studies are necessary to identify improved strategies to regulate Nrf2 and HO-1 activation in order to enable the development of drugs with therapeutic applications in joint diseases.
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Affiliation(s)
- Maria José Alcaraz
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Av. Vicent A. Estellés s/n, 46100, Burjasot, Valencia, Spain.
| | - María Luisa Ferrándiz
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Av. Vicent A. Estellés s/n, 46100, Burjasot, Valencia, Spain
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243
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Solano-Urrusquieta A, Morales-González JA, Castro-Narro GE, Cerda-Reyes E, Flores-Rangel PD, Fierros-Oceguera R. NRF-2 and nonalcoholic fatty liver disease. Ann Hepatol 2020; 19:458-465. [PMID: 31959521 DOI: 10.1016/j.aohep.2019.11.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 11/21/2019] [Accepted: 11/25/2019] [Indexed: 02/07/2023]
Abstract
Currently, chronic liver diseases have conditioned morbidity and mortality, many of these with a metabolic, toxicologic, immunologic, viral, or other etiology. Thus, a transcription factor that has been of huge importance for biomedical research is NRF-2. The latter is considered a principal component of the antioxidant mechanism, and it has been acknowledged that it impairs the function of NRF-2 in many liver diseases and that it forms an essential part of the pathologic changes that occur in the liver to contain inflammation and damage. Within the investigations and experiments carried out, there are isolated drugs, many of them related to plants and natural extracts that possess antioxidant properties through the NRF-2 signaling pathway, or even involving the stimulation of the transcription target proteins of NRF-2. Notwithstanding all of these experimental findings, to date there is not sufficient clinical evidence to justify the use of NRF-2 in medical practice.
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Affiliation(s)
| | - José A Morales-González
- Laboratory of Conservation Medicine, Higher School of Medicine, Instituto Politécnico Nacional, Mexico
| | | | - Eira Cerda-Reyes
- Gastroenterology Section of the Central Military Hospital, Mexico City, Mexico
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244
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Muri J, Wolleb H, Broz P, Carreira EM, Kopf M. Electrophilic Nrf2 activators and itaconate inhibit inflammation at low dose and promote IL-1β production and inflammatory apoptosis at high dose. Redox Biol 2020; 36:101647. [PMID: 32863237 PMCID: PMC7387846 DOI: 10.1016/j.redox.2020.101647] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 12/30/2022] Open
Abstract
Controlling inflammation is critical for preventing many diseases including cancer, autoimmune disorders and hypersensitivity reactions. NF-E2-related factor 2 (Nrf2) is a key transcription factor that controls the cellular antioxidant and cytoprotective response. Moreover, Nrf2 has been implicated in the regulation of inflammatory processes, although the ultimate mechanism by which this is achieved is unknown. Here, we investigated mechanisms of inflammation and cell death pathways induced by a variety of Nrf2 activators including dimethyl fumarate (DMF) and the endogenous metabolite itaconate. We found that exposure of bone marrow-derived dendritic cells (BMDCs) to low concentrations of a variety of electrophilic Nrf2 activators including itaconate prior to Toll-like receptor (TLR) stimulation inhibits transcription of pro-inflammatory cytokines (such as interleukin [IL]-12 and IL-1β) by activation of Nrf2. By contrast, high doses of these electrophilic compounds after TLR activation promote inflammatory apoptosis and caspase-8-dependent IL-1β processing and release independently of Nrf2. Interestingly, tert-butylhydroquinone (tBHQ), a non-electrophilic Nrf2-activator, failed to induce IL-1β production. These results have important implications for clinical application of electrophilic compounds.
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Affiliation(s)
- Jonathan Muri
- Institute of Molecular Health Sciences, ETH Zürich, 8093, Zürich, Switzerland
| | - Helene Wolleb
- Laboratory of Organic Chemistry, ETH Zürich, 8093, Zürich, Switzerland
| | - Petr Broz
- Department of Biochemistry, University of Lausanne, 1066, Epalinges, Switzerland
| | - Erick M Carreira
- Laboratory of Organic Chemistry, ETH Zürich, 8093, Zürich, Switzerland
| | - Manfred Kopf
- Institute of Molecular Health Sciences, ETH Zürich, 8093, Zürich, Switzerland.
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245
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Leite JA, Isaksen TJ, Heuck A, Scavone C, Lykke-Hartmann K. The α 2 Na +/K +-ATPase isoform mediates LPS-induced neuroinflammation. Sci Rep 2020; 10:14180. [PMID: 32843655 PMCID: PMC7447643 DOI: 10.1038/s41598-020-71027-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 07/16/2020] [Indexed: 12/12/2022] Open
Abstract
Na+/K+-ATPase is a transmembrane ion pump that is essential for the maintenance of ion gradients and regulation of multiple cellular functions. Na+/K+-ATPase has been associated with nuclear factor kappa B (NFκB) signalling, a signal associated with lipopolysaccharides (LPSs)-induced immune response in connection with activated Toll-like receptor 4 (TLR4) signalling. However, the contribution of Na+/K+-ATPase to regulating inflammatory responses remains elusive. We report that mice haploinsufficient for the astrocyte-enriched α2Na+/K+-ATPase isoform (α2+/G301R mice) have a reduced proinflammatory response to LPS, accompanied by a reduced hypothermic reaction compared to wild type litter mates. Following intraperitoneal injection of LPS, gene expressions of Tnf-α, Il-1β, and Il-6 was reduced in the hypothalamus and hippocampus from α2+/G301R mice compared to α2+/+ littermates. The α2+/G301R mice experienced increased expression of the gene encoding an antioxidant enzyme, NRF2, in hippocampal astrocytes. Our findings indicate that α2Na+/K+-ATPase haploinsufficiency negatively modulates LPS-induced immune responses, highlighting a rational pharmacological target for reducing LPS-induced inflammation.
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Affiliation(s)
- J A Leite
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Pharmacology, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil.,Department of Pharmacology, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
| | - T J Isaksen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - A Heuck
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - C Scavone
- Department of Pharmacology, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - K Lykke-Hartmann
- Department of Biomedicine, Aarhus University, Aarhus, Denmark. .,Department of Clinical Medicine, Aarhus University, 8000, Aarhus C, Denmark. .,Department of Clinical Genetics, Aarhus University Hospital, 8200, Aarhus N, Denmark.
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246
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Foster AD, Downing P, Figredo E, Polain N, Stott A, Layfield R, Rea SL. ALS-associated TBK1 variant p.G175S is defective in phosphorylation of p62 and impacts TBK1-mediated signalling and TDP-43 autophagic degradation. Mol Cell Neurosci 2020; 108:103539. [PMID: 32835772 DOI: 10.1016/j.mcn.2020.103539] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 12/11/2022] Open
Abstract
Mutations affecting SQSTM1 coding for p62 and TANK-Binding Kinase 1 (TBK1) have been implicated in amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD). TBK1 is a serine-threonine kinase that regulates p62's activity as an autophagy receptor via phosphorylation and also has roles in neuroinflammatory signalling pathways. The mechanisms underlying ALS and FTLD pathogenesis as a result of TBK1 mutations are incompletely understood, however, loss of TBK1 function can lead to dysregulated autophagy and mitophagy. Here, we report that an ALS-associated TBK1 variant affecting the kinase domain, p.G175S, is defective in phosphorylation of p62 at Ser-403, a modification critical for regulating its ubiquitin-binding function, as well as downstream phosphorylation at Ser-349. Consistent with these findings, expression of p.G175S TBK1 was associated with decreased induction of autophagy compared to wild type and reduced degradation of the ALS-linked protein TDP-43. Expression of wild type TBK1 increased NF-κB signalling ~300 fold in comparison to empty vector cells, whereas p.G175S TBK1 was unable to promote NF-κB signalling above levels observed in empty vector transfected cells. We also noted a hitherto unknown role for TBK1 as a suppressor of oxidative stress (Nrf2) signalling and show that p.G175S TBK1 expressing cells lose this inhibitory function. Our data suggest that TBK1 ALS mutations may broadly impair p62-mediated cell signalling, which ultimately may reduce neuronal survival, in addition TDP-43 was not efficiently degraded, together these effects may contribute to TBK1 mutation associated ALS and FTLD pathogenesis.
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Affiliation(s)
- A D Foster
- Harry Perkins Institute of Medical Research, Centre for Medical Research, University of Western Australia, Nedlands, Western Australia, Australia; Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia; Perron Institute for Neurological and Translational Science, Centre for Neuromuscular and Neurological Disorders, University of Western Australia, Nedlands, Western Australia, Australia; Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Health Research Building, Discovery Way, Murdoch, WA, Australia
| | - P Downing
- School of Health Sciences, Notre Dame University, Fremantle, Western Australia, Australia
| | - E Figredo
- School of Health Sciences, Notre Dame University, Fremantle, Western Australia, Australia
| | - N Polain
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Health Research Building, Discovery Way, Murdoch, WA, Australia
| | - A Stott
- Harry Perkins Institute of Medical Research, Centre for Medical Research, University of Western Australia, Nedlands, Western Australia, Australia; Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - R Layfield
- School of Health Sciences, Notre Dame University, Fremantle, Western Australia, Australia; School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
| | - S L Rea
- Harry Perkins Institute of Medical Research, Centre for Medical Research, University of Western Australia, Nedlands, Western Australia, Australia; Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia; Perron Institute for Neurological and Translational Science, Centre for Neuromuscular and Neurological Disorders, University of Western Australia, Nedlands, Western Australia, Australia; Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Health Research Building, Discovery Way, Murdoch, WA, Australia.
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247
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Fagiani F, Catanzaro M, Buoso E, Basagni F, Di Marino D, Raniolo S, Amadio M, Frost EH, Corsini E, Racchi M, Fulop T, Govoni S, Rosini M, Lanni C. Targeting Cytokine Release Through the Differential Modulation of Nrf2 and NF-κB Pathways by Electrophilic/Non-Electrophilic Compounds. Front Pharmacol 2020; 11:1256. [PMID: 32922294 PMCID: PMC7456937 DOI: 10.3389/fphar.2020.01256] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 07/30/2020] [Indexed: 01/07/2023] Open
Abstract
The transcription factor Nrf2 coordinates a multifaceted response to various forms of stress and to inflammatory processes, maintaining a homeostatic intracellular environment. Nrf2 anti-inflammatory activity has been related to the crosstalk with the transcription factor NF-κB, a pivotal mediator of inflammatory responses and of multiple aspects of innate and adaptative immune functions. However, the underlying molecular basis has not been completely clarified. By combining into new chemical entities, the hydroxycinnamoyl motif from curcumin and the allyl mercaptan moiety of garlic organosulfur compounds, we tested a set of molecules, carrying (pro)electrophilic features responsible for the activation of the Nrf2 pathway, as valuable pharmacologic tools to dissect the mechanistic connection between Nrf2 and NF-κB. We investigated whether the activation of the Nrf2 pathway by (pro)electrophilic compounds may interfere with the secretion of pro-inflammatory cytokines, during immune stimulation, in a human immortalized monocyte-like cell line (THP-1). The capability of compounds to affect the NF-κB pathway was also evaluated. We assessed the compounds-mediated regulation of cytokine and chemokine release by using Luminex X-MAP® technology in human primary peripheral blood mononuclear cells (PBMCs) upon LPS stimulation. We found that all compounds, also in the absence of electrophilic moieties, significantly suppressed the LPS-evoked secretion of pro-inflammatory cytokines such as TNFα and IL-1β, but not of IL-8, in THP-1 cells. A reduction in the release of pro-inflammatory mediators similar to that induced by the compounds was also observed after siRNA mediated-Nrf2 knockdown, thus indicating that the attenuation of cytokine secretion cannot be directly ascribed to the activation of Nrf2 signaling pathway. Moreover, all compounds, with the exception of compound 1, attenuated the LPS-induced activation of the NF-κB pathway, by reducing the upstream phosphorylation of IκB, the NF-κB nuclear translocation, as well as the activation of NF-κB promoter. In human PBMCs, compound 4 and CURC attenuated TNFα release as observed in THP-1 cells, and all compounds acting as Nrf2 inducers significantly decreased the levels of MCP-1/CCL2, as well as the release of the pro-inflammatory cytokine IL-12. Altogether, the compounds induced a differential modulation of innate immune cytokine release, by differently regulating Nrf2 and NF-κB intracellular signaling pathways.
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Affiliation(s)
- Francesca Fagiani
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy.,Scuola Universitaria Superiore IUSS Pavia, Pavia, Italy
| | - Michele Catanzaro
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy
| | - Erica Buoso
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy
| | - Filippo Basagni
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Daniele Di Marino
- Department of Life and Environmental Sciences, New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, Ancona, Italy
| | - Stefano Raniolo
- Università della Svizzera Italiana (USI), Faculty of Biomedical Sciences, Institute of Computational Science-Center for Computational Medicine in Cardiology, CH-Lugano, Switzerland
| | - Marialaura Amadio
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy
| | - Eric H Frost
- Department of Microbiology and Infectiology, Centre de Recherches Cliniques, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Emanuela Corsini
- Department of Environmental Science and Policy, Università degli Studi di Milano, Milan, Italy
| | - Marco Racchi
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy
| | - Tamas Fulop
- Geriatric Division, Department of Medicine, Faculty of Medicine and Health Sciences, Research Center on Aging, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Stefano Govoni
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy
| | - Michela Rosini
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Cristina Lanni
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Pavia, Italy
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248
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Mycoplasma hyopneumoniae J elicits an antioxidant response and decreases the expression of ciliary genes in infected swine epithelial cells. Sci Rep 2020; 10:13707. [PMID: 32792522 PMCID: PMC7426424 DOI: 10.1038/s41598-020-70040-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/22/2020] [Indexed: 12/20/2022] Open
Abstract
Mycoplasma hyopneumoniae is the most costly pathogen for swine production. Although several studies have focused on the host-bacterium association, little is known about the changes in gene expression of swine cells upon infection. To improve our understanding of this interaction, we infected swine epithelial NPTr cells with M. hyopneumoniae strain J to identify differentially expressed mRNAs and miRNAs. The levels of 1,268 genes and 170 miRNAs were significantly modified post-infection. Up-regulated mRNAs were enriched in genes related to redox homeostasis and antioxidant defense, known to be regulated by the transcription factor NRF2 in related species. Down-regulated mRNAs were enriched in genes associated with cytoskeleton and ciliary functions. Bioinformatic analyses suggested a correlation between changes in miRNA and mRNA levels, since we detected down-regulation of miRNAs predicted to target antioxidant genes and up-regulation of miRNAs targeting ciliary and cytoskeleton genes. Interestingly, most down-regulated miRNAs were detected in exosome-like vesicles suggesting that M. hyopneumoniae infection induced a modification of the composition of NPTr-released vesicles. Taken together, our data indicate that M. hyopneumoniae elicits an antioxidant response induced by NRF2 in infected cells. In addition, we propose that ciliostasis caused by this pathogen is partially explained by the down-regulation of ciliary genes.
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249
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Han S, Zhuang H, Lee PY, Li M, Yang L, Nigrovic PA, Reeves WH. NF-E2-Related Factor 2 Regulates Interferon Receptor Expression and Alters Macrophage Polarization in Lupus. Arthritis Rheumatol 2020; 72:1707-1720. [PMID: 32500632 DOI: 10.1002/art.41383] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 05/26/2020] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Pristane-induced lupus is associated with nonresolving inflammation and deficiency of proresolving macrophages. Proresolving nonclassic macrophages (NCMs) are less responsive to type I interferon (IFN) than classic macrophages (CMs; which are proinflammatory), reflecting their relative expression levels of the type I IFN receptor (IFNAR). This study was undertaken to investigate the regulation of IFNAR expression in macrophages. METHODS We carried out gene expression profiling of purified CMs and NCMs from mice treated with pristane (which develop lupus) or mineral oil (non-lupus controls). Macrophage differentiation and IFNAR expression were examined in mice treated with NF-E2-related factor 2 (Nrf2) activators and inhibitors and in Nrf2-deficient mice. Nrf2 activity was also assessed in blood cells from patients with systemic lupus erythematosus (SLE). Significant differences were determined by Student's t-test. RESULTS RNA sequencing revealed increased expression of genes regulated by the transcription factor Nrf2 in NCMs from mineral oil-treated versus pristane-treated mice and in NCMs versus CMs. The Nrf2 activator CDDO-imidazole (CDDO-Im) decreased CMs (P < 0.0001) and promoted the development of proresolving NCMs (P = 0.06), whereas the Nrf2 inhibitor brusatol increased CMs (P < 0.05) and decreased NCMs (P < 0.001). CDDO-Im decreased Ifnar1 (P < 0.001) and IFN-stimulated gene (ISG) expression in macrophages and alleviated oxidative stress (P < 0.05), whereas brusatol had the opposite effect (P < 0.01). Moreover, Ifnar1 and ISG expression levels were higher in Nrf2-knockout mice than controls (P < 0.05). As seen in mice with lupus, SLE patients showed evidence of low Nrf2 activity. CONCLUSION Our findings indicate that Nrf2 activation favors the resolution of chronic inflammation in lupus. Since autoantibody production and lupus nephritis depend on IFNAR signaling, the ability of Nrf2 activators to repolarize macrophages and reduce the INF signature suggests that these agents may warrant consideration for treating lupus.
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Affiliation(s)
| | | | - Pui Y Lee
- Boston Children's Hospital, Boston, Massachusetts
| | | | | | - Peter A Nigrovic
- Boston Children's Hospital and Brigham and Women's Hospital, Boston, Massachusetts
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250
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Mornata F, Pepe G, Sfogliarini C, Brunialti E, Rovati G, Locati M, Maggi A, Vegeto E. Reciprocal interference between the NRF2 and LPS signaling pathways on the immune-metabolic phenotype of peritoneal macrophages. Pharmacol Res Perspect 2020; 8:e00638. [PMID: 32794353 PMCID: PMC7426195 DOI: 10.1002/prp2.638] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 12/15/2022] Open
Abstract
The metabolic and immune adaptation to extracellular signals allows macrophages to carry out specialized functions involved in immune protection and tissue homeostasis. Nuclear factor erythroid 2-related factor 2 (NRF2) is a transcription factor that coordinates cell redox and metabolic responses to stressors. However, the individual and concomitant activation of NRF2 and inflammatory pathways have been poorly investigated in isolated macrophages. We here took advantage of reporter mice for the transcriptional activities of NRF2 and nuclear factor-kB (NFκB), a key transcription factor in inflammation, and observe a persisting reciprocal interference in the response of peritoneal macrophages to the respective activators, tert-Butylhydroquinone (tBHQ) and lipopolysaccharide (LPS). When analyzed separately by gene expression studies, these pathways trigger macrophage-specific metabolic and proliferative target genes that are associated with tBHQ-induced pentose phosphate pathway (PPP) with no proliferative response, and with opposite effects observed with LPS. Importantly, the simultaneous administration of tBHQ + LPS alters the effects of each individual pathway in a target gene-specific manner. In fact, this co-treatment potentiates the effects of tBHQ on the antioxidant enzyme, HMOX1, and the antibacterial enzyme, IRG1, respectively; moreover, the combined treatment reduces tBHQ activity on the glycolytic enzymes, TALDO1 and TKT, and decreases LPS effects on the metabolic enzyme IDH1, the proliferation-related proteins KI67 and PPAT, and the inflammatory cytokines IL-1β, IL-6, and TNFα. Altogether, our results show that the activation of NRF2 redirects the metabolic, immune, and proliferative response of peritoneal macrophages to inflammatory signals, with relevant consequences for the pharmacological treatment of diseases that are associated with unopposed inflammatory responses.
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Affiliation(s)
- Federica Mornata
- Center of Excellence on Neurodegenerative DiseasesUniversity of MilanMilanItaly
- Department of Pharmaceutical SciencesUniversity of MilanMilanItaly
| | - Giovanna Pepe
- Center of Excellence on Neurodegenerative DiseasesUniversity of MilanMilanItaly
- Department of Pharmaceutical SciencesUniversity of MilanMilanItaly
| | - Chiara Sfogliarini
- Center of Excellence on Neurodegenerative DiseasesUniversity of MilanMilanItaly
- Department of Pharmaceutical SciencesUniversity of MilanMilanItaly
| | - Electra Brunialti
- Center of Excellence on Neurodegenerative DiseasesUniversity of MilanMilanItaly
- Department of Health SciencesUniversity of MilanMilanItaly
| | | | - Massimo Locati
- Department of Medical Biotechnologies and Translational MedicineUniversity of MilanMilanItaly
- Humanitas Clinical and Research Center‐ IRCCSRozzanoItaly
| | - Adriana Maggi
- Center of Excellence on Neurodegenerative DiseasesUniversity of MilanMilanItaly
- Department of Pharmaceutical SciencesUniversity of MilanMilanItaly
| | - Elisabetta Vegeto
- Center of Excellence on Neurodegenerative DiseasesUniversity of MilanMilanItaly
- Department of Pharmaceutical SciencesUniversity of MilanMilanItaly
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