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Clouthier KL, Taylor AC, Xuhuai J, Liu Y, Parker S, Van Eyk J, Reddy S. A Noninvasive Circulating Signature of Combined Right Ventricular Pressure and Volume Overload in Tetralogy of Fallot/Pulmonary Atresia/Major Aortopulmonary Collateral Arteries. World J Pediatr Congenit Heart Surg 2024; 15:162-173. [PMID: 38128927 DOI: 10.1177/21501351231213626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Background: Despite surgical advances, children with tetralogy of Fallot/pulmonary atresia/major aortopulmonary collaterals (TOF/PA/MAPCAs) are subject to chronic right ventricular (RV) pressure and volume overload. Current diagnostic tools do not identify adverse myocardial remodeling and cannot predict progression to RV failure. We sought to identify a noninvasive, circulating signature of the systemic response to right heart stress to follow disease progression. Methods: Longitudinal data were collected from patients with TOF/PA/MAPCAs (N = 5) at the time of (1) early RV pressure overload and (2) late RV pressure and volume overload. Plasma protein and microRNA expression were evaluated using high-throughput data-independent mass spectroscopy and Agilent miR Microarray, respectively. Results: At the time of early RV pressure overload, median patient age was 0.34 years (0.02-9.37), with systemic RV pressures, moderate-severe hypertrophy, and preserved systolic function. Late RV pressure and volume overload occurred at a median age of 4.08 years (1.51-10.83), with moderate RV hypertrophy and dilation, and low normal RV function; 277 proteins were significantly dysregulated (log2FC ≥0.6/≤-0.6, FDR≤0.05), predicting downregulation in lipid transport (apolipoproteins), fibrinolytic system, and extracellular matrix structural proteins (talin 1, profilin 1); and upregulation in the respiratory burst. Increasing RV size and decreasing RV function correlated with decreasing structural protein expression. Similarly, miR expression predicted downregulation of extracellular matrix-receptor interactions and upregulation in collagen synthesis. Conclusion: To our knowledge, we show for the first time a noninvasive protein and miR signature reflecting the systemic response to adverse RV myocardial remodeling in TOF/PA/MAPCAs which could be used to follow disease progression.
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Affiliation(s)
- Katie L Clouthier
- Department of Pediatrics (Cardiology), Stanford University, Palo Alto, CA, USA
| | - Anne C Taylor
- Department of Pediatrics (Cardiology), Stanford University, Palo Alto, CA, USA
| | - Ji Xuhuai
- Human Immune Monitoring Center and Functional Genomics Facility, Stanford University, Palo Alto, CA, USA
| | - Yuhan Liu
- Department of Medicine (Quantitative Science Unit), Stanford University, Palo Alto, CA, USA
| | - Sarah Parker
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jennifer Van Eyk
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Sushma Reddy
- Department of Pediatrics (Cardiology), Stanford University, Palo Alto, CA, USA
- Cardiovascular Institute, Stanford University, Los Angeles, CA, USA
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2
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Hallis SP, Kim JM, Kwak MK. Emerging Role of NRF2 Signaling in Cancer Stem Cell Phenotype. Mol Cells 2023; 46:153-164. [PMID: 36994474 PMCID: PMC10070166 DOI: 10.14348/molcells.2023.2196] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 03/31/2023] Open
Abstract
Cancer stem cells (CSCs) are a small population of tumor cells characterized by self-renewal and differentiation capacity. CSCs are currently postulated as the driving force that induces intra-tumor heterogeneity leading to tumor initiation, metastasis, and eventually tumor relapse. Notably, CSCs are inherently resistant to environmental stress, chemotherapy, and radiotherapy due to high levels of antioxidant systems and drug efflux transporters. In this context, a therapeutic strategy targeting the CSC-specific pathway holds a promising cure for cancer. NRF2 (nuclear factor erythroid 2-like 2; NFE2L2) is a master transcription factor that regulates an array of genes involved in the detoxification of reactive oxygen species/electrophiles. Accumulating evidence suggests that persistent NRF2 activation, observed in multiple types of cancer, supports tumor growth, aggressive malignancy, and therapy resistance. Herein, we describe the core properties of CSCs, focusing on treatment resistance, and review the evidence that demonstrates the roles of NRF2 signaling in conferring unique properties of CSCs and the associated signaling pathways.
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Affiliation(s)
- Steffanus P. Hallis
- Department of Pharmacy, Graduate School, The Catholic University of Korea, Bucheon 14662, Korea
| | - Jin Myung Kim
- Department of Pharmacy, Graduate School, The Catholic University of Korea, Bucheon 14662, Korea
| | - Mi-Kyoung Kwak
- Department of Pharmacy, Graduate School, The Catholic University of Korea, Bucheon 14662, Korea
- College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea
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3
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Ooki A, Osumi H, Chin K, Watanabe M, Yamaguchi K. Potent molecular-targeted therapies for advanced esophageal squamous cell carcinoma. Ther Adv Med Oncol 2023; 15:17588359221138377. [PMID: 36872946 PMCID: PMC9978325 DOI: 10.1177/17588359221138377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 10/21/2022] [Indexed: 01/15/2023] Open
Abstract
Esophageal cancer (EC) remains a public health concern with a high mortality and disease burden worldwide. Esophageal squamous cell carcinoma (ESCC) is a predominant histological subtype of EC that has unique etiology, molecular profiles, and clinicopathological features. Although systemic chemotherapy, including cytotoxic agents and immune checkpoint inhibitors, is the main therapeutic option for recurrent or metastatic ESCC patients, the clinical benefits are limited with poor prognosis. Personalized molecular-targeted therapies have been hampered due to the lack of robust treatment efficacy in clinical trials. Therefore, there is an urgent need to develop effective therapeutic strategies. In this review, we summarize the molecular profiles of ESCC based on the findings of pivotal comprehensive molecular analyses, highlighting potent therapeutic targets for establishing future precision medicine for ESCC patients, with the most recent results of clinical trials.
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Affiliation(s)
- Akira Ooki
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan
| | - Hiroki Osumi
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Keisho Chin
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masayuki Watanabe
- Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kensei Yamaguchi
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
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4
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Transcriptional profiling of drug-induced liver injury biomarkers: association of hepatic Srebf1/Pparα signaling and crosstalk of thrombin, alcohol dehydrogenase, MDR and DNA damage regulators. Mol Cell Biochem 2022:10.1007/s11010-022-04648-1. [PMID: 36583794 DOI: 10.1007/s11010-022-04648-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/17/2022] [Indexed: 12/31/2022]
Abstract
Cell stress transcribing genes provide a diverse platform of molecular mediators that vary in response to toxicity. Common drug-induced liver injury (DILI) biomarkers are usually expressed in mild toxicity and limited to confirming it rather than categorizing its intensity. Thus, new parametric biomarkers are needed to be explored. Classifying the toxicological response based on the dose-level and severity of stimuli will aid in the evaluation and approach against drug exposure. The present research explored the involvement of gene expression of potential biomarkers as a severity-specific hallmark in different acetaminophen (APAP)-induced hepatotoxicity levels in C57BL/6 mice. The differentially expressed genes were annotated and analyzed using bioinformatics tools to predict canonical pathways altered by DILI. The results revealed alteration in genes encoding for antioxidant enhancement; Slc7a11, bile efflux; MDR4, fatty acid metabolism and transcriptional factors namely Srebf1 and Pparα. Potential APAP toxicity biomarkers included Adh1 and thrombin, and other DNA damage and stress chaperones which were changed at least fourfold between control and the three tested severity models. The current investigation demonstrates a dose-mediated association of several hallmark genes in APAP-induced liver damage and addressed the involvement of uncommonly studied molecular responses. Such biomarkers can be further developed into predictive models, translated for risk assessment against drug exposure and guide in building theragnostic targets.
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5
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Gęgotek A, Skrzydlewska E. The Role of ABC Transporters in Skin Cells Exposed to UV Radiation. Int J Mol Sci 2022; 24:ijms24010115. [PMID: 36613554 PMCID: PMC9820374 DOI: 10.3390/ijms24010115] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/17/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
ABC transporters are expressed in skin cells to protect them against harmful xenobiotics. Moreover, these transmembrane proteins have a number of additional functions that ensure skin homeostasis. This review summarizes the current knowledge about the role of specific ABC proteins in the skin, including multi-drug resistance transporters (MDR1/3), the transporter associated with antigen processing 1/2 (TAP1/2), the cystic fibrosis transmembrane conductance regulator (CFTR), sulfonylurea receptors (SUR1/2), and the breast cancer resistance protein (BCRP). Additionally, the effect of UV radiation on ABC transporters is shown. The exposure of skin cells to UV radiation often leads to increased activity of ABC transporters-as has been observed in the case of MDRs, TAPs, CFTR, and BCRP. A different effect of oxidative stress has been observed in the case of mitochondrial SURs. However, the limited data in the literature-as indicated in this article-highlights the limited number of experimental studies dealing with the role of ABC transporters in the physiology and pathophysiology of skin cells and the skin as a whole. At the same time, the importance of such knowledge in relation to the possibility of daily exposure to UV radiation and xenobiotics, used for both skin care and the treatment of its diseases, is emphasized.
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6
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Dodson M, Shakya A, Anandhan A, Chen J, Garcia JG, Zhang DD. NRF2 and Diabetes: The Good, the Bad, and the Complex. Diabetes 2022; 71:2463-2476. [PMID: 36409792 PMCID: PMC9750950 DOI: 10.2337/db22-0623] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/06/2022] [Indexed: 11/22/2022]
Abstract
Despite decades of scientific effort, diabetes continues to represent an incredibly complex and difficult disease to treat. This is due in large part to the multifactorial nature of disease onset and progression and the multiple organ systems affected. An increasing body of scientific evidence indicates that a key mediator of diabetes progression is NRF2, a critical transcription factor that regulates redox, protein, and metabolic homeostasis. Importantly, while experimental studies have confirmed the critical nature of proper NRF2 function in preventing the onset of diabetic outcomes, we have only just begun to scratch the surface of understanding the mechanisms by which NRF2 modulates diabetes progression, particularly across different causative contexts. One reason for this is the contradictory nature of the current literature, which can often be accredited to model discrepancies, as well as whether NRF2 is activated in an acute or chronic manner. Furthermore, despite therapeutic promise, there are no current NRF2 activators in clinical trials for the treatment of patients with diabetes. In this review, we briefly introduce the transcriptional programs regulated by NRF2 as well as how NRF2 itself is regulated. We also review the current literature regarding NRF2 modulation of diabetic phenotypes across the different diabetes subtypes, including a brief discussion of contradictory results, as well as what is needed to progress the NRF2 diabetes field forward.
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Affiliation(s)
- Matthew Dodson
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Aryatara Shakya
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Annadurai Anandhan
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Jinjing Chen
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
| | - Joe G.N. Garcia
- Department of Medicine, University of Arizona Health Sciences, University of Arizona, Tucson, AZ
| | - Donna D. Zhang
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ
- Arizona Cancer Center, University of Arizona, Tucson, AZ
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7
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Machado ART, Tuttis K, Santos PWDS, Aissa AF, Antunes LMG. Diallyl Disulfide Induces Chemosensitization to Sorafenib, Autophagy, and Cell Cycle Arrest and Inhibits Invasion in Hepatocellular Carcinoma. Pharmaceutics 2022; 14:pharmaceutics14122582. [PMID: 36559076 PMCID: PMC9788602 DOI: 10.3390/pharmaceutics14122582] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/09/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
Hepatocellular carcinoma is the seventh most common type of cancer in the world, with limited treatment options. A promising strategy to treat cancer is to associate chemotherapeutics and plant bioactive compounds. Here, we examined whether diallyl disulfide (DADS; 50-200 μM) and sorafenib (SORA; 8 μM), either alone or in combination, were toxic to hepatocellular carcinoma cells (HepG2) in vitro. We assessed whether DADS and/or SORA induced cell death (LIVE/DEAD assay and autophagy) and cell cycle changes (flow cytometry), altered expression of key genes and proteins (RT-qPCR and Western blot), and modulated tumorigenesis signatures, such as proliferation (clonogenic assay), migration (wound healing), and invasion (inserts). The DADS + SORA combination elicited autophagic cell death by upregulating LC3 and NRF2 expression and downregulating FOS and TNF expression; induced the accumulation of cells in the G1 phase which thereby upregulated the CHEK2 expression; and inhibited invasion by downregulating the MMP2 expression. Predictive analysis indicated the participation of the MAPK pathway in the reported results. The DADS + SORA combination suppressed both cell invasion and clonogenic survival, which indicated that it dampened tumor growth, proliferation, invasion, and metastatic potential. Therefore, the DADS + SORA combination is a promising therapy to develop new clinical protocols.
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Affiliation(s)
- Ana Rita Thomazela Machado
- Department of Clinical Analyses, Toxicology and Food Science, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Katiuska Tuttis
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Patrick Wellington da Silva Santos
- Department of Clinical Analyses, Toxicology and Food Science, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Alexandre Ferro Aissa
- Institute of Biomedical Sciences, Federal University of Alfenas, Alfenas 37130-001, MG, Brazil
| | - Lusânia Maria Greggi Antunes
- Department of Clinical Analyses, Toxicology and Food Science, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
- Correspondence: ; Tel.: +55-16-3315-4725
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8
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Yoda T, Tochitani T, Usui T, Kouchi M, Inada H, Hosaka T, Kanno Y, Miyawaki I, Yoshinari K. Involvement of the CYP1A1 inhibition-mediated activation of aryl hydrocarbon receptor in drug-induced hepatotoxicity. J Toxicol Sci 2022; 47:359-373. [PMID: 36047110 DOI: 10.2131/jts.47.359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Hepatotoxicity is one of the most common toxicities observed in non-clinical safety studies of drug candidates, and it is important to understand the hepatotoxicity mechanism to assess the risk of drug-induced liver injury in humans. In this study, we investigated the mechanism of hepatotoxicity caused by 2-[2-Methyl-1-(oxan-4-yl)-1H-benzimidazol-5-yl]-1,3-benzoxazole (DSP-0640), a drug candidate that showed hepatotoxicity characterized by centrilobular hypertrophy and vacuolation of hepatocytes in a 4-week oral repeated-dose toxicity study in male rats. In the liver of rats treated with DSP-0640, the expression of aryl hydrocarbon receptor (AHR) target genes, including Cyp1a1, was upregulated. In in vitro reporter assays, however, DSP-0640 showed only minimal AHR-activating potency. Therefore, we investigated the possibility that DSP-0640 indirectly activated AHR by inhibiting the CYP1 enzyme-dependent clearance of endogenous AHR agonists. In in vitro assays, DSP-0640 showed inhibitory effects on both rat and human CYP1A1 and enhanced rat and human AHR-mediated reporter gene expression induced by 6-formylindolo[3,2-b]carbazole, a well-known endogenous AHR agonist. The possible involvement of CYP1A1 inhibition in AHR activation was also demonstrated with other hepatotoxic compounds tacrine and albendazole. These results suggest that CYP1A1 inhibition-mediated AHR activation is involved in the hepatotoxicity caused by DSP-0640 and that DSP-0640 might induce hepatotoxicity in humans as well. We propose that CYP1A1 inhibition-mediated AHR activation is a novel mechanism for drug-induced hepatotoxicity.
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Affiliation(s)
- Tomomi Yoda
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd.,Laboratory of Molecular Toxicology, School of Pharmaceutical Sciences, University of Shizuoka
| | | | - Toru Usui
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd
| | - Mami Kouchi
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd
| | | | - Takuomi Hosaka
- Laboratory of Molecular Toxicology, School of Pharmaceutical Sciences, University of Shizuoka
| | - Yuichiro Kanno
- Laboratory of Molecular Toxicology, School of Pharmaceutical Sciences, University of Shizuoka
| | | | - Kouichi Yoshinari
- Laboratory of Molecular Toxicology, School of Pharmaceutical Sciences, University of Shizuoka
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9
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Manda G, Milanesi E, Genc S, Niculite CM, Neagoe IV, Tastan B, Dragnea EM, Cuadrado A. Pros and cons of NRF2 activation as adjunctive therapy in rheumatoid arthritis. Free Radic Biol Med 2022; 190:179-201. [PMID: 35964840 DOI: 10.1016/j.freeradbiomed.2022.08.012] [Citation(s) in RCA: 6] [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: 06/14/2022] [Revised: 08/02/2022] [Accepted: 08/08/2022] [Indexed: 10/15/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease with an important inflammatory component accompanied by deregulated redox-dependent signaling pathways that are feeding back into inflammation. In this context, we bring into focus the transcription factor NRF2, a master redox regulator that exerts exquisite antioxidant and anti-inflammatory effects. The review does not intend to be exhaustive, but to point out arguments sustaining the rationale for applying an NRF2-directed co-treatment in RA as well as its potential limitations. The involvement of NRF2 in RA is emphasized through an analysis of publicly available transcriptomic data on NRF2 target genes and the findings from NRF2-knockout mice. The impact of NRF2 on concurrent pathologic mechanisms in RA is explained by its crosstalk with major redox-sensitive inflammatory and cell death-related pathways, in the context of the increased survival of pathologic cells in RA. The proposed adjunctive therapy targeted to NRF2 is further sustained by the existence of promising NRF2 activators that are in various stages of drug development. The interference of NRF2 with conventional anti-rheumatic therapies is discussed, including the cytoprotective effects of NRF2 for alleviating drug toxicity. From another perspective, the review presents how NRF2 activation would be decreasing the efficacy of synthetic anti-rheumatic drugs by increasing drug efflux. Future perspectives regarding pharmacologic NRF2 activation in RA are finally proposed.
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Affiliation(s)
- Gina Manda
- Radiobiology Laboratory, Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Elena Milanesi
- Radiobiology Laboratory, Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Sermin Genc
- Neurodegeneration and Neuroprotection Laboratory, Izmir Biomedicine and Genome Center, Izmir, Turkey; Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey; Department of Neuroscience, Health Science Institute, Dokuz Eylul University, Izmir, Turkey
| | - Cristina Mariana Niculite
- Radiobiology Laboratory, Victor Babes National Institute of Pathology, Bucharest, Romania; Department of Cellular and Molecular Biology and Histology, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Ionela Victoria Neagoe
- Radiobiology Laboratory, Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Bora Tastan
- Neurodegeneration and Neuroprotection Laboratory, Izmir Biomedicine and Genome Center, Izmir, Turkey; Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Elena Mihaela Dragnea
- Radiobiology Laboratory, Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Antonio Cuadrado
- Department of Biochemistry, Medical College, Autonomous University of Madrid (UAM), Madrid, Spain; Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Madrid, Spain; Instituto de Investigación Sanitaria La Paz (IdiPaz), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
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10
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The Role of Nrf2 in Pulmonary Fibrosis: Molecular Mechanisms and Treatment Approaches. Antioxidants (Basel) 2022; 11:antiox11091685. [PMID: 36139759 PMCID: PMC9495339 DOI: 10.3390/antiox11091685] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/21/2022] [Accepted: 08/26/2022] [Indexed: 11/21/2022] Open
Abstract
Pulmonary fibrosis is a chronic, progressive, incurable interstitial lung disease with high mortality after diagnosis and remains a global public health problem. Despite advances and breakthroughs in understanding the pathogenesis of pulmonary fibrosis, there are still no effective methods for the prevention and treatment of pulmonary fibrosis. The existing treatment options are imperfect, expensive, and have considerable limitations in effectiveness and safety. Hence, there is an urgent need to find novel therapeutic targets. The nuclear factor erythroid 2-related factor 2 (Nrf2) is a central regulator of cellular antioxidative responses, inflammation, and restoration of redox balance. Accumulating reports reveal that Nrf2 activators exhibit potent antifibrosis effects and significantly attenuate pulmonary fibrosis in vivo and in vitro. This review summarizes the current Nrf2-related knowledge about the regulatory mechanism and potential therapies in the process of pulmonary fibrosis. Nrf2 orchestrates the activation of multiple protective genes that target inflammation, oxidative stress, fibroblast–myofibroblast differentiation (FMD), and epithelial–mesenchymal transition (EMT), and the mechanisms involve Nrf2 and its downstream antioxidant, Nrf2/HO−1/NQO1, Nrf2/NOX4, and Nrf2/GSH signaling pathway. We hope to indicate potential for Nrf2 system as a therapeutic target for pulmonary fibrosis.
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11
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Narożna M, Krajka-Kuźniak V, Kleszcz R, Baer-Dubowska W. Indomethacin and Diclofenac Hybrids with Oleanolic Acid Oximes Modulate Key Signaling Pathways in Pancreatic Cancer Cells. Int J Mol Sci 2022; 23:ijms23031230. [PMID: 35163154 PMCID: PMC8835846 DOI: 10.3390/ijms23031230] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 02/06/2023] Open
Abstract
Our earlier studies showed that coupling nonsteroidal anti-inflammatory drugs (NSAIDs) with oleanolic acid derivatives increased their anti-inflammatory activity in human hepatoma cells. The aim of this study was to evaluate their effect on the signaling pathways involved in inflammation processes in human pancreatic cancer (PC) cells. Cultured PSN-1 cells were exposed for 24 h (30 µM) to OA oxime (OAO) derivatives substituted with benzyl or morpholide groups and their conjugates with indomethacin (IND) or diclofenac (DCL). The activation of NF-κB and Nrf2 was assessed by the evaluation of the translocation of their active forms into the nucleus and their binding to specific DNA sequences via the ELISA assay. The expression of NF-κB and Nrf2 target genes was evaluated by R-T PCR and Western blot analysis. The conjugation of IND or DCL with OAO derivatives increased cytotoxicity and their effect on the tested signaling pathways. The most effective compound was the DCL hybrid with OAO morpholide (4d). This compound significantly reduced the activation and expression of NF-κB and enhanced the activation and expression of Nrf2. Increased expression of Nrf2 target genes led to reduced ROS production. Moreover, MAPKs and the related pathways were also affected. Therefore, conjugate 4d deserves more comprehensive studies as a potential PC therapeutic agent.
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Affiliation(s)
- Maria Narożna
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 4, Święcicki Street, 60-781 Poznań, Poland; (M.N.); (V.K.-K.); (R.K.)
- Program in Cell Cycle and Cancer Biology, Oklahoma Medical Research Foundation, 825, NE 13th Street, Oklahoma City, OK 73104, USA
| | - Violetta Krajka-Kuźniak
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 4, Święcicki Street, 60-781 Poznań, Poland; (M.N.); (V.K.-K.); (R.K.)
| | - Robert Kleszcz
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 4, Święcicki Street, 60-781 Poznań, Poland; (M.N.); (V.K.-K.); (R.K.)
| | - Wanda Baer-Dubowska
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 4, Święcicki Street, 60-781 Poznań, Poland; (M.N.); (V.K.-K.); (R.K.)
- Correspondence:
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12
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Kamisako T, Tanaka Y. Oltipraz ameliorates the progression of steatohepatitis in Nrf2-null mice fed a high-fat diet. J Clin Biochem Nutr 2022; 70:147-153. [PMID: 35400824 PMCID: PMC8921722 DOI: 10.3164/jcbn.21-58] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/03/2021] [Indexed: 01/14/2023] Open
Abstract
Oltipraz, a synthetic dithiolethione, has chemopreventive effect through nuclear factor erythroid 2-related factor 2 (Nrf2) activation. Nrf2 is known to be involved in the development of experimental steatohepatitis in rodents. In this study, to evaluate the effect of oltipraz on lipid and bile acid metabolism, wild-type and Nrf2-null mice were fed the standard diet (containing 4% soybean oil) with or without oltipraz. Based on these results, we examined the effect of oltipraz on the experimental steatohepatitis in high-fat diet (containing 4% soybean oil and 20% lard) fed Nrf2-null mice. Oltipraz induced hepatic mRNA expression of peroxisome proliferator-activated receptor α, carnitine palmityl transferase 1, and bile salt export pump by Nrf2 independent mechanisms. In Nrf2-null mice fed a high-fat diet for 12 weeks, moderate to severe inflammation and fibrosis were observed. Oral administration of oltipraz suppressed the degree of inflammation and fibrosis in Nrf2-null mouse liver fed a high-fat diet. These histopathological findings approximately corresponded to the data of mRNA expression of tumor necrosis factor α, monocyte chemoattractant protein-1, Timp-1, and collagen type 1α1. These results indicated that oltipraz administration ameliorated liver injury by Nrf2 independent manner in a model of steatohepatitis generated by Nrf2-null mice with high-fat diet.
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Affiliation(s)
| | - Yuji Tanaka
- Department of Clinical Laboratory Medicine, Kindai University Hospital
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13
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The Antioxidant Transcription Factor Nrf2 in Cardiac Ischemia-Reperfusion Injury. Int J Mol Sci 2021; 22:ijms222111939. [PMID: 34769371 PMCID: PMC8585042 DOI: 10.3390/ijms222111939] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/27/2021] [Accepted: 10/30/2021] [Indexed: 12/25/2022] Open
Abstract
Nuclear factor erythroid-2 related factor 2 (Nrf2) is a transcription factor that controls cellular defense responses against toxic and oxidative stress by modulating the expression of genes involved in antioxidant response and drug detoxification. In addition to maintaining redox homeostasis, Nrf2 is also involved in various cellular processes including metabolism and inflammation. Nrf2 activity is tightly regulated at the transcriptional, post-transcriptional and post-translational levels, which allows cells to quickly respond to pathological stress. In the present review, we describe the molecular mechanisms underlying the transcriptional regulation of Nrf2. We also focus on the impact of Nrf2 in cardiac ischemia-reperfusion injury, a condition that stimulates the overproduction of reactive oxygen species. Finally, we analyze the protective effect of several natural and synthetic compounds that induce Nrf2 activation and protect against ischemia-reperfusion injury in the heart and other organs, and their potential clinical application.
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14
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Panieri E, Saso L. Inhibition of the NRF2/KEAP1 Axis: A Promising Therapeutic Strategy to Alter Redox Balance of Cancer Cells. Antioxid Redox Signal 2021; 34:1428-1483. [PMID: 33403898 DOI: 10.1089/ars.2020.8146] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Significance: The nuclear factor erythroid 2-related factor 2/Kelch-like ECH-associated protein 1 (NRF2/KEAP1) pathway is a crucial and highly conserved defensive system that is required to maintain or restore the intracellular homeostasis in response to oxidative, electrophilic, and other types of stress conditions. The tight control of NRF2 function is maintained by a complex network of biological interactions between positive and negative regulators that ultimately ensure context-specific activation, culminating in the NRF2-driven transcription of cytoprotective genes. Recent Advances: Recent studies indicate that deregulated NRF2 activation is a frequent event in malignant tumors, wherein it is associated with metabolic reprogramming, increased antioxidant capacity, chemoresistance, and poor clinical outcome. On the other hand, the growing interest in the modulation of the cancer cells' redox balance identified NRF2 as an ideal therapeutic target. Critical Issues: For this reason, many efforts have been made to identify potent and selective NRF2 inhibitors that might be used as single agents or adjuvants of anticancer drugs with redox disrupting properties. Despite the lack of specific NRF2 inhibitors still represents a major clinical hurdle, the researchers have exploited alternative strategies to disrupt NRF2 signaling at different levels of its biological activation. Future Directions: Given its dualistic role in tumor initiation and progression, the identification of the appropriate biological context of NRF2 activation and the specific clinicopathological features of patients cohorts wherein its inactivation is expected to have clinical benefits, will represent a major goal in the field of cancer research. In this review, we will briefly describe the structure and function of the NRF2/ KEAP1 system and some of the most promising NRF2 inhibitors, with a particular emphasis on natural compounds and drug repurposing. Antioxid. Redox Signal. 34, 1428-1483.
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Affiliation(s)
- Emiliano Panieri
- Department of Physiology and Pharmacology "Vittorio Erspamer," University of Rome La Sapienza, Rome, Italy
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer," University of Rome La Sapienza, Rome, Italy
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15
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Schmidlin CJ, Shakya A, Dodson M, Chapman E, Zhang DD. The intricacies of NRF2 regulation in cancer. Semin Cancer Biol 2021; 76:110-119. [PMID: 34020028 DOI: 10.1016/j.semcancer.2021.05.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/12/2021] [Accepted: 05/14/2021] [Indexed: 02/07/2023]
Abstract
The complex role of NRF2 in the context of cancer continues to evolve. As a transcription factor, NRF2 regulates various genes involved in redox homeostasis, protein degradation, DNA repair, and xenobiotic metabolism. As such, NRF2 is critical in preserving cell function and viability, particularly during stress. Importantly, NRF2 itself is regulated via a variety of mechanisms, and the mode of NRF2 activation often dictates the duration of NRF2 signaling and its role in either preventing cancer initiation or promoting cancer progression. Herein, different modes of NRF2 regulation, including oxidative stress, autophagy dysfunction, protein-protein interactions, and epigenetics, as well as pharmacological modulators targeting this cascade in cancer, are explored. Specifically, how the timing and duration of these different mechanisms of NRF2 induction affect tumor initiation, progression, and metastasis are discussed. Additionally, progress in the discovery and development of NRF2 inhibitors for the treatment of NRF2-addicted cancers is highlighted, including modulators that inhibit specific NRF2 downstream targets. Overall, a better understanding of the intricate nature of NRF2 regulation in specific cancer contexts should facilitate the generation of novel therapeutics designed to not only prevent tumor initiation, but also halt progression and ultimately improve patient wellbeing and survival.
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Affiliation(s)
- Cody J Schmidlin
- Deparment of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, USA
| | - Aryatara Shakya
- Deparment of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, USA
| | - Matthew Dodson
- Deparment of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, USA
| | - Eli Chapman
- Deparment of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, USA
| | - Donna D Zhang
- Deparment of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, USA; University of Arizona Cancer Center, University of Arizona, Tucson, AZ, USA.
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16
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Song MY, Lee DY, Chun KS, Kim EH. The Role of NRF2/KEAP1 Signaling Pathway in Cancer Metabolism. Int J Mol Sci 2021; 22:4376. [PMID: 33922165 PMCID: PMC8122702 DOI: 10.3390/ijms22094376] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/14/2021] [Accepted: 04/20/2021] [Indexed: 12/17/2022] Open
Abstract
The nuclear factor-erythroid 2 p45-related factor 2 (NRF2, also called Nfe2l2) and its cytoplasmic repressor, Kelch-like ECH-associated protein 1 (KEAP1), are major regulators of redox homeostasis controlling a multiple of genes for detoxification and cytoprotective enzymes. The NRF2/KEAP1 pathway is a fundamental signaling cascade responsible for the resistance of metabolic, oxidative stress, inflammation, and anticancer effects. Interestingly, a recent accumulation of evidence has indicated that NRF2 exhibits an aberrant activation in cancer. Evidence has shown that the NRF2/KEAP1 signaling pathway is associated with the proliferation of cancer cells and tumerigenesis through metabolic reprogramming. In this review, we provide an overview of the regulatory molecular mechanism of the NRF2/KEAP1 pathway against metabolic reprogramming in cancer, suggesting that the regulation of NRF2/KEAP1 axis might approach as a novel therapeutic strategy for cancers.
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Affiliation(s)
- Moon-Young Song
- College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Seongnam 13488, Korea; (M.-Y.S.); (D.-Y.L.)
| | - Da-Young Lee
- College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Seongnam 13488, Korea; (M.-Y.S.); (D.-Y.L.)
| | - Kyung-Soo Chun
- College of Pharmacy, Keimyung University, Daegu 42601, Korea
| | - Eun-Hee Kim
- College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Seongnam 13488, Korea; (M.-Y.S.); (D.-Y.L.)
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17
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Ekuban FA, Zong C, Takikawa M, Morikawa K, Sakurai T, Ichihara S, Itoh K, Yamamoto M, Ohsako S, Ichihara G. Genetic ablation of Nrf2 exacerbates neurotoxic effects of acrylamide in mice. Toxicology 2021; 456:152785. [PMID: 33872730 DOI: 10.1016/j.tox.2021.152785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/20/2021] [Accepted: 04/12/2021] [Indexed: 12/20/2022]
Abstract
Acrylamide (ACR), a recognized neurotoxicant in humans and experimental animals, is widely used in industry and in food generated through Maillard reaction. Nuclear factor erythroid 2-related factor 2 (Nrf2) is a master regulator of the cellular defense system and activates antioxidants and cytoprotective genes. The exact roles of Nrf2 in environmental electrophile-induced neurotoxicity is poorly understood. The aim of this study was to determine the roles of Nrf2 in ACR-induced neurotoxicity including degeneration of monoaminergic axons and sensorimotor dysfunction. Male 10-week-old C57BL/6JJcl Nrf2-knockout mice and wild type (WT) counterparts were each divided into four groups of 12 and provided with drinking water containing acrylamide at 0, 67, 110 or 200 ppm for four weeks. The effects of acrylamide were examined by landing foot spread test, immunohistochemistry for noradrenaline (NA) and serotonin (5-HT)-containing axons and Iba1-positive microglia in the prefrontal cortex as well as quantitative real-time polymerase chain reaction (qRT-PCR) on antioxidant, proinflammatory and anti-inflammatory genes in the prefrontal cortex. Relative to the wild type, exposure of Nrf2-knockout mice to acrylamide increased hindlimb splay length, microglial area and process length as well as decreasing the density of NA and 5-HT-immunoreactive axons to a greater extent. Moreover, deletion of Nrf2 gene suppressed acrylamide-induced mRNA upregulation of Nrf2-antioxidants, NAD(P): quinone oxidoreductase 1 (NQO1), superoxide dismutase-1 (SOD-1) and heme oxygenase-1 (HO-1) as well as anti-inflammatory markers such as, arginase-1 (Arg1), found in the inflammatory zone-1 (Fizz1), chitinase-like 3 (Chi3l3), interleukin-4 receptor alpha (IL-4Rα), cluster of differentiation 206 (CD206) and transforming growth factor beta-1 (TGFβ1) while enhancing acrylamide-induced upregulation of pro-inflammatory cytokines, interleukin-1 beta (IL-1β), tumor necrosis-alpha (TNF-α) and inducible nitric oxide synthase (iNOS) in the prefrontal cortex. The results demonstrate susceptibility of mice lacking the Nrf2 gene to acrylamide-induced neurotoxicity and neuroinflammation with the activation of microglia. Moreover, the results suggest the role of Nrf2 not only in induction of antioxidant gene expression, but also in suppression of proinflammatory cytokine gene expression.
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Affiliation(s)
- Frederick Adams Ekuban
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Cai Zong
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Madoka Takikawa
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Kota Morikawa
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Toshihiro Sakurai
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Sahoko Ichihara
- Department of Environmental and Preventive Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan
| | - Ken Itoh
- Department of Stress Response Hirosaki University, Hirosaki, Japan
| | - Masayuki Yamamoto
- Department of Molecular Biochemistry Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Seiichiroh Ohsako
- Laboratory of Environmental Health Sciences, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Gaku Ichihara
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan.
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18
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Egbujor MC, Saha S, Buttari B, Profumo E, Saso L. Activation of Nrf2 signaling pathway by natural and synthetic chalcones: a therapeutic road map for oxidative stress. Expert Rev Clin Pharmacol 2021; 14:465-480. [PMID: 33691555 DOI: 10.1080/17512433.2021.1901578] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction:Nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway plays a key role in diverse gene expressions responsible for protection against oxidative stress and xenobiotics. Chalcones with a common chemical scaffold of 1,3-diaryl-2- propen-1-one, are abundantly present in nature with a wide variety of pharmacological properties. This review will discuss the interactions of natural and synthetic chalcones with Nrf2 signaling.Areas covered:Chalcones are reportedly found to activate Nrf2 signaling pathway, expression of Nrf2-regulated antioxidant genes, induce cytoprotective proteins and upregulate multidrug resistance-associated proteins. Chalcones being soft electrophiles are less prone to hostile off-target effects and unlikely to induce carcinogenicity and mutagenicity. Furthermore, their low toxicity, structural diversity, feasibility in structural reorganization and the presence of α,β-unsaturated carbonyl group which makes them suitable drug candidates targeting Nrf2-dependent diseases.Expert opinion:Nrf2-Keap1 signaling pathway plays a central role in redox signaling. However, available therapeutic agents for Nrf2 activation have limited practical applications due to their associated risks, relatively low efficacy and bioavailability. The designing and fabrication of new chemical entities with chalcone scaffold-based Michael acceptor mechanism should be aimed as potential therapeutic Nrf2 activators to target oxidative stress and inflammation-mediated diseases such as atherosclerosis, Parkinson's disease and many more.
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Affiliation(s)
- Melford Chuka Egbujor
- Department of Industrial Chemistry, Renaissance University, Ugbawka, Enugu State, Nigeria
| | - Sarmistha Saha
- Department of Cardiovascular and Endocrine-Metabolic Diseases, and Aging, Italian National Institute of Health, Rome, Italy
| | - Brigitta Buttari
- Department of Cardiovascular and Endocrine-Metabolic Diseases, and Aging, Italian National Institute of Health, Rome, Italy
| | - Elisabetta Profumo
- Department of Cardiovascular and Endocrine-Metabolic Diseases, and Aging, Italian National Institute of Health, Rome, Italy
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer, Sapienza University of Rome, Rome, Italy
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19
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Liu J, Lickteig AJ, Zhang Y, Csanaky IL, Klaassen CD. Activation of Nrf2 decreases bile acid concentrations in livers of female mice. Xenobiotica 2021; 51:605-615. [PMID: 33522359 DOI: 10.1080/00498254.2021.1880033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
1. Nuclear factor erythroid 2-related factor 2 (Nrf2) is a master regulator of oxidative/electrophilic stress. Studies suggest a role of Nrf2 in regulating bile acid (BA) metabolism in male mice. However, whether Nrf2 is important for BA homeostasis in female mice remains undefined. In this study, we systematically investigated the effect of Nrf2 activation, either through CDDO-imidazolide (CDDO-Im) treatment or genetic modulation of Kelch-like ECH associating protein 1 (Keap1), on BA homeostasis in female mice.2. Both pharmacological and genetic Nrf2 activation increased mRNA levels of multidrug resistance-associated protein 2 and 3 (Mrp2 and Mrp3), two Nrf2 target genes, in livers and ilea of female mice. Both pharmacological and genetic activation of Nrf2 decreased BA concentrations in the liver, which did not appear to be due to increased biliary BA excretion or decreased ileal BA absorption. Importantly, both pharmacological and genetic activation of Nrf2 downregulated hepatic Cyp7a1 mRNA, which might be attributable to the upregulation of the Fxr-Fgf15 signalling in the ileum.3. To conclude, Nrf2 activation lowers BA concentrations in livers of female mice, which appears to be attributable to the decreased hepatic BA synthesis.
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Affiliation(s)
- Jing Liu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R.China
| | - Andrew J Lickteig
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Youcai Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P.R.China
| | - Iván L Csanaky
- Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Hospital and Clinics, Kansas City, MO, USA.,Division of Gastroenterology, Children's Mercy Hospital and Clinics, Kansas City, MO, USA.,Department of Pediatrics, University of Kansas Medical Center, Kansas City, KS, USA
| | - Curtis D Klaassen
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
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20
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Wu DM, Ji X, Ivanchenko MV, Chung M, Piper M, Rana P, Wang SK, Xue Y, West E, Zhao SR, Xu H, Cicconet M, Xiong W, Cepko CL. Nrf2 overexpression rescues the RPE in mouse models of retinitis pigmentosa. JCI Insight 2021; 6:145029. [PMID: 33491671 PMCID: PMC7934854 DOI: 10.1172/jci.insight.145029] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 12/02/2020] [Indexed: 12/11/2022] Open
Abstract
Nrf2, a transcription factor that regulates the response to oxidative stress, has been shown to rescue cone photoreceptors and slow vision loss in mouse models of retinal degeneration (rd). The retinal pigment epithelium (RPE) is damaged in these models, but whether it also could be rescued by Nrf2 has not been previously examined. We used an adeno-associated virus (AAV) with an RPE-specific (Best1) promoter to overexpress Nrf2 in the RPE of rd mice. Control rd mice showed disruption of the regular array of the RPE, as well as loss of RPE cells. Cones were lost in circumscribed regions within the cone photoreceptor layer. Overexpression of Nrf2 specifically in the RPE was sufficient to rescue the RPE, as well as the disruptions in the cone photoreceptor layer. Electron microscopy showed compromised apical microvilli in control rd mice but showed preserved microvilli in Best1-Nrf2–treated mice. The rd mice treated with Best1-Nrf2 had slightly better visual acuity. Transcriptome profiling showed that Nrf2 upregulates multiple oxidative defense pathways, reversing declines seen in the glutathione pathway in control rd mice. In summary, Nrf2 overexpression in the RPE preserves RPE morphology and survival in rd mice, and it is a potential therapeutic for diseases involving RPE degeneration, including age-related macular degeneration (AMD).
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Affiliation(s)
- David M Wu
- Massachusetts Eye and Ear Infirmary Retina Service, Department of Ophthalmology.,Departments of Genetics and Ophthalmology, Blavatnik Institute, and
| | - Xuke Ji
- Massachusetts Eye and Ear Infirmary Retina Service, Department of Ophthalmology.,Departments of Genetics and Ophthalmology, Blavatnik Institute, and
| | - Maryna V Ivanchenko
- Department of Neurobiology, Harvard Medical School, Boston, Massachusetts, USA
| | - Michelle Chung
- Departments of Genetics and Ophthalmology, Blavatnik Institute, and.,Howard Hughes Medical Institute, Chevy Chase, Maryland, USA
| | - Mary Piper
- Department of Bioinformatics, T.H. Chan Harvard School of Public Health, Boston, Massachusetts, USA
| | - Parimal Rana
- Departments of Genetics and Ophthalmology, Blavatnik Institute, and
| | - Sean K Wang
- Departments of Genetics and Ophthalmology, Blavatnik Institute, and
| | - Yunlu Xue
- Departments of Genetics and Ophthalmology, Blavatnik Institute, and
| | - Emma West
- Departments of Genetics and Ophthalmology, Blavatnik Institute, and
| | - Sophia R Zhao
- Departments of Genetics and Ophthalmology, Blavatnik Institute, and
| | - Hongbin Xu
- Departments of Genetics and Ophthalmology, Blavatnik Institute, and.,Howard Hughes Medical Institute, Chevy Chase, Maryland, USA
| | - Marcelo Cicconet
- Image and Data Analysis Core, Harvard Medical School, Boston, Massachusetts, USA
| | - Wenjun Xiong
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - Constance L Cepko
- Department of Neurobiology, Harvard Medical School, Boston, Massachusetts, USA.,Howard Hughes Medical Institute, Chevy Chase, Maryland, USA
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21
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Abiko Y, Aoki H, Kumagai Y. Effect of combined exposure to environmental aliphatic electrophiles from plants on Keap1/Nrf2 activation and cytotoxicity in HepG2 cells: A model of an electrophile exposome. Toxicol Appl Pharmacol 2021; 413:115392. [PMID: 33428920 DOI: 10.1016/j.taap.2020.115392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 11/25/2022]
Abstract
Electrophiles, ubiquitously found in the environment, modify thiol groups of sensor proteins, leading to activation of redox signaling pathways such as the Kelch-like ECH-associated protein 1 (Keap1)/nuclear factor E2 related factor 2 (Nrf2) pathway. Nrf2 activation by exposure to single electrophiles has been established. However, the effect of exposure to a combination of electrophiles on Nrf2 activation has not been well evaluated. The current study examined whether combined exposure to electrophiles enhances the modification of thiol groups and Keap1/Nrf2 activation in HepG2 cells. Six electrophiles [1,2-naphthoquinone (1,2-NQ), 1,4-NQ, 1,4-benzoquinone, (E)-2-hexenal (hexenal), (E)-2-decenal, and (E)-2-butenal] were tested for S-modification of albumin in vitro and for cytotoxicity to HepG2 cells. Interestingly, a mixture of the electrophiles enhanced S-modification of albumin and cytotoxicity compared with exposure to each electrophile separately. Herein, we focused on 1,2-NQ, 1,4-NQ, and hexenal to clarify the combined effect of electrophiles on Keap1/Nrf2 activation in HepG2 cells. A concentration addition model revealed that 1,2-NQ and/or 1,4-NQ additively enhanced hexenal-mediated S-modification of GSH in vitro, whereas the cytotoxicity of hexenal was synergistically increased by simultaneous exposure of HepG2 cells to the NQs. Furthermore, an NQ cocktail (2.5 μM each) that does not activate Nrf2 enhanced hexenal-mediated Nrf2 activation. These results suggest that combined exposure to electrophiles at low concentrations induces stronger activation of redox signaling compared with exposure to each electrophile alone and worsens their cytotoxicity.
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Affiliation(s)
- Yumi Abiko
- Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human, Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Hanako Aoki
- Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human, Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yoshito Kumagai
- Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human, Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
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22
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Bechtold B, Clarke J. Multi-factorial pharmacokinetic interactions: unraveling complexities in precision drug therapy. Expert Opin Drug Metab Toxicol 2020; 17:397-412. [PMID: 33339463 DOI: 10.1080/17425255.2021.1867105] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Introduction: Precision drug therapy requires accounting for pertinent factors in pharmacokinetic (PK) inter-individual variability (i.e., pharmacogenetics, diseases, polypharmacy, and natural product use) that can cause sub-therapeutic or adverse effects. Although each of these individual factors can alter victim drug PK, multi-factorial interactions can cause additive, synergistic, or opposing effects. Determining the magnitude and direction of these complex multi-factorial effects requires understanding the rate-limiting redundant and/or sequential PK processes for each drug.Areas covered: Perturbations in drug-metabolizing enzymes and/or transporters are integral to single- and multi-factorial PK interactions. Examples of single factor PK interactions presented include gene-drug (pharmacogenetic), disease-drug, drug-drug, and natural product-drug interactions. Examples of multi-factorial PK interactions presented include drug-gene-drug, natural product-gene-drug, gene-gene-drug, disease-natural product-drug, and disease-gene-drug interactions. Clear interpretation of multi-factorial interactions can be complicated by study design, complexity in victim drug PK, and incomplete mechanistic understanding of victim drug PK.Expert opinion: Incorporation of complex multi-factorial PK interactions into precision drug therapy requires advances in clinical decision tools, intentional PK study designs, drug-metabolizing enzyme and transporter fractional contribution determinations, systems and computational approaches (e.g., physiologically-based pharmacokinetic modeling), and PK phenotyping of progressive diseases.
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Affiliation(s)
- Baron Bechtold
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, USA
| | - John Clarke
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, USA
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23
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Okazaki K, Anzawa H, Liu Z, Ota N, Kitamura H, Onodera Y, Alam MM, Matsumaru D, Suzuki T, Katsuoka F, Tadaka S, Motoike I, Watanabe M, Hayasaka K, Sakurada A, Okada Y, Yamamoto M, Suzuki T, Kinoshita K, Sekine H, Motohashi H. Enhancer remodeling promotes tumor-initiating activity in NRF2-activated non-small cell lung cancers. Nat Commun 2020; 11:5911. [PMID: 33219226 PMCID: PMC7679411 DOI: 10.1038/s41467-020-19593-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 10/21/2020] [Indexed: 01/05/2023] Open
Abstract
Transcriptional dysregulation, which can be caused by genetic and epigenetic alterations, is a fundamental feature of many cancers. A key cytoprotective transcriptional activator, NRF2, is often aberrantly activated in non-small cell lung cancers (NSCLCs) and supports both aggressive tumorigenesis and therapeutic resistance. Herein, we find that persistently activated NRF2 in NSCLCs generates enhancers at gene loci that are not normally regulated by transiently activated NRF2 under physiological conditions. Elevated accumulation of CEBPB in NRF2-activated NSCLCs is found to be one of the prerequisites for establishment of the unique NRF2-dependent enhancers, among which the NOTCH3 enhancer is shown to be critical for promotion of tumor-initiating activity. Enhancer remodeling mediated by NRF2-CEBPB cooperativity promotes tumor-initiating activity and drives malignancy of NRF2-activated NSCLCs via establishment of the NRF2-NOTCH3 regulatory axis. Aberrant activation of NRF2 in cancer cells contributes to tumorigenicity and therapeutic resistance. Here, the authors show that NRF2 cooperates with CEBPB and remodels enhancers to confer tumor-initiating activity on NRF2- activated non-small cell lung cancers.
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Affiliation(s)
- Keito Okazaki
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Hayato Anzawa
- Department of System Bioinformatics, Graduate School of Information Sciences, Tohoku University, 980-8579, Sendai, Japan
| | - Zun Liu
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Nao Ota
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Hiroshi Kitamura
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Yoshiaki Onodera
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Md Morshedul Alam
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Daisuke Matsumaru
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Takuma Suzuki
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Fumiki Katsuoka
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, 980-8573, Japan
| | - Shu Tadaka
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, 980-8573, Japan
| | - Ikuko Motoike
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, 980-8573, Japan
| | - Mika Watanabe
- Department of Pathology, Tohoku University Hospital, Sendai, 980-8575, Japan
| | - Kazuki Hayasaka
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan.,Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Akira Sakurada
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Yoshinori Okada
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Masayuki Yamamoto
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, 980-8573, Japan.,Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Takashi Suzuki
- Department of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Kengo Kinoshita
- Department of System Bioinformatics, Graduate School of Information Sciences, Tohoku University, 980-8579, Sendai, Japan.,Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, 980-8573, Japan
| | - Hiroki Sekine
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan.
| | - Hozumi Motohashi
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan.
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Abiko Y, Okada M, Aoki H, Mizokawa M, Kumagai Y. A strategy for repression of arsenic toxicity through nuclear factor E2 related factor 2 activation mediated by the (E)-2-alkenals in Coriandrum sativum L. leaf extract. Food Chem Toxicol 2020; 145:111706. [DOI: 10.1016/j.fct.2020.111706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/20/2020] [Accepted: 08/22/2020] [Indexed: 12/15/2022]
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25
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Smolková K, Mikó E, Kovács T, Leguina-Ruzzi A, Sipos A, Bai P. Nuclear Factor Erythroid 2-Related Factor 2 in Regulating Cancer Metabolism. Antioxid Redox Signal 2020; 33:966-997. [PMID: 31989830 PMCID: PMC7533893 DOI: 10.1089/ars.2020.8024] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Significance: Nuclear factor erythroid 2 (NFE2)-related factor 2 (NFE2L2, or NRF2) is a transcription factor predominantly affecting the expression of antioxidant genes. NRF2 plays a significant role in the control of redox balance, which is crucial in cancer cells. NRF2 activation regulates numerous cancer hallmarks, including metabolism, cancer stem cell characteristics, tumor aggressiveness, invasion, and metastasis formation. We review the molecular characteristics of the NRF2 pathway and discuss its interactions with the cancer hallmarks previously listed. Recent Advances: The noncanonical activation of NRF2 was recently discovered, and members of this pathway are involved in carcinogenesis. Further, cancer-related changes (e.g., metabolic flexibility) that support cancer progression were found to be redox- and NRF2 dependent. Critical Issues: NRF2 undergoes Janus-faced behavior in cancers. The pro- or antineoplastic effects of NRF2 are context dependent and essentially based on the specific molecular characteristics of the cancer in question. Therefore, systematic investigation of NRF2 signaling is necessary to clarify its role in cancer etiology. The biggest challenge in the NRF2 field is to determine which cancers can be targeted for better clinical outcomes. Further, large-scale genomic and transcriptomic studies are missing to correlate the clinical outcome with the activity of the NRF2 system. Future Directions: To exploit NRF2 in a clinical setting in the future, the druggable members of the NRF2 pathway should be identified. In addition, it will be important to study how the modulation of the NRF2 system interferes with cytostatic drugs and their combinations.
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Affiliation(s)
- Katarína Smolková
- Department of Mitochondrial Physiology, Institute of Physiology of the Czech Academy of Sciences (IPHYS CAS), Prague, Czech Republic
| | - Edit Mikó
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, Hungary
| | - Tünde Kovács
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Alberto Leguina-Ruzzi
- Department of Mitochondrial Physiology, Institute of Physiology of the Czech Academy of Sciences (IPHYS CAS), Prague, Czech Republic
| | - Adrienn Sipos
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, Hungary.,Faculty of Medicine, Research Center for Molecular Medicine, University of Debrecen, Debrecen, Hungary
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26
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Nrf2 in Neoplastic and Non-Neoplastic Liver Diseases. Cancers (Basel) 2020; 12:cancers12102932. [PMID: 33053665 PMCID: PMC7599585 DOI: 10.3390/cancers12102932] [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: 09/09/2020] [Revised: 09/29/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Although the Keap1-Nrf2 pathway represents a powerful cell defense mechanism against a variety of toxic insults, its role in acute or chronic liver damage and tumor development is not completely understood. This review addresses how Nrf2 is involved in liver pathophysiology and critically discusses the contrasting results emerging from the literature. The aim of the present report is to stimulate further investigation on the role of Nrf2 that could lead to define the best strategies to therapeutically target this pathway. Abstract Activation of the Keap1/Nrf2 pathway, the most important cell defense signal, triggered to neutralize the harmful effects of electrophilic and oxidative stress, plays a crucial role in cell survival. Therefore, its ability to attenuate acute and chronic liver damage, where oxidative stress represents the key player, is not surprising. On the other hand, while Nrf2 promotes proliferation in cancer cells, its role in non-neoplastic hepatocytes is a matter of debate. Another topic of uncertainty concerns the nature of the mechanisms of Nrf2 activation in hepatocarcinogenesis. Indeed, it remains unclear what is the main mechanism behind the sustained activation of the Keap1/Nrf2 pathway in hepatocarcinogenesis. This raises doubts about the best strategies to therapeutically target this pathway. In this review, we will analyze and discuss our present knowledge concerning the role of Nrf2 in hepatic physiology and pathology, including hepatocellular carcinoma. In particular, we will critically examine and discuss some findings originating from animal models that raise questions that still need to be adequately answered.
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27
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Gorczyca L, Du J, Bircsak KM, Wen X, Vetrano AM, Aleksunes LM. Low oxygen tension differentially regulates the expression of placental solute carriers and ABC transporters. FEBS Lett 2020; 595:811-827. [PMID: 32978975 DOI: 10.1002/1873-3468.13937] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/27/2020] [Accepted: 09/03/2020] [Indexed: 01/12/2023]
Abstract
Low oxygen concentration, or hypoxia, is an important physiological regulator of placental function including chemical disposition. Here, we compared the ability of low oxygen tension to alter the expression of solute carriers (SLC) and ABC transporters in two human placental models, namely BeWo cells and term placental explants. We found that exposure to low oxygen concentration differentially regulates transporter expression in BeWo cells, including downregulation of ENT1, OATP4A1, OCTN2, BCRP, and MRP2/3/5, and upregulation of CNT1, OAT4, OATP2B1, SERT, SOAT, and MRP1. Similar upregulation of MRP1 and downregulation of MRP5 and BCRP were observed in explants, whereas uptake transporters were decreased or unchanged. Furthermore, a screening of transcriptional regulators of transporters revealed that hypoxia leads to a decrease in the mRNA levels of aryl hydrocarbon receptor, nuclear factor erythroid 2-related factor 2, and retinoid x receptor alpha in both human placental models. These data suggest that transporter expression is differentially regulated by oxygen concentration across experimental human placental models.
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Affiliation(s)
- Ludwik Gorczyca
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Joint Graduate Program in Toxicology, Rutgers University, Piscataway, NJ, USA
| | - Jianyao Du
- China Pharmaceutical University, Nanjing, China
| | - Kristin M Bircsak
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Joint Graduate Program in Toxicology, Rutgers University, Piscataway, NJ, USA
| | - Xia Wen
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA
| | - Anna M Vetrano
- Division of Neonatology, Department of Pediatrics, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA
| | - Lauren M Aleksunes
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Rutgers Center for Lipid Research, New Jersey Institute for Food, Nutrition, and Health, Rutgers University, New Brunswick, NJ, USA.,Environmental and Occupational Health Sciences Institute, Piscataway, NJ, USA
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28
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Zhang X, Wang T, Yang Y, Li R, Chen Y, Li R, Jiang X, Wang L. Tanshinone IIA attenuates acetaminophen-induced hepatotoxicity through HOTAIR-Nrf2-MRP2/4 signaling pathway. Biomed Pharmacother 2020; 130:110547. [PMID: 32777703 DOI: 10.1016/j.biopha.2020.110547] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/20/2020] [Accepted: 07/20/2020] [Indexed: 01/20/2023] Open
Abstract
Tanshinone IIA (Tan IIA), an active component in S. miltiorrhiza, has been reported to have excellent antioxidant and detoxifying activity. Here, we prove that Tan IIA attenuates acetaminophen-induced hepatotoxicity from a pharmacokinetic perspective. Compared with acetaminophen (APAP, 200 mg/kg) treated mice, Tan IIA pretreatment (30 mg/kg/d) not only reduced the plasma level of the toxic metabolite N-acetyl-p-benzoquinone imine (NAPQI) but also increased its bile level. After Tan IIA pretreatment, significant induction of nuclear factor E2-related factor 2 (Nrf2), multidrug resistance-associated protein 2 (Mrp2), and multidrug resistance-associated protein 4 (Mrp4) mRNA and protein expression was detected in Nrf2+/+ mouse liver, however, much lower increase of Mrp2 and Mrp4 mRNA and protein expression was observed in Nrf2-/- mouse liver. Luciferase reporter and chromatin immunoprecipitation assays demonstrated that Nrf2 bounds to antioxidant responsive elements (AREs) of the MRP2 and MRP4 promoter, thus regulating the expression of MRP2 and MRP4. in vitro experiments revealed that Tan IIA increase Nrf2, MRP2, and MRP4 expression through a mechanism of inhibiting the expression of HOX transcript antisense RNA (HOTAIR) which belongs to long non-coding RNAs. Collectively, the present results demonstrated that Tan IIA could protect against APAP-induced hepatotoxicity by altering the pharmacokinetic characteristics of APAP and its metabolites via HOTAIR-Nrf2-MRP2/4 signaling pathway, and HOTAIR plays a pivotal role in the MRP2 and MRP4 expression regulated by Nrf2.
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Affiliation(s)
- Xiqian Zhang
- Department of Clinical Pharmacy and Pharmacy Administration, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China; Department of Pharmacy, The Third People's Hospital of Chengdu & College of Medicine, Southwest Jiaotong University, Chengdu 610031, China
| | - Ting Wang
- Department of Pharmacy, Sichuan Cancer Hospital & Institution, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Yujie Yang
- Department of Pharmacy, The Third People's Hospital of Chengdu & College of Medicine, Southwest Jiaotong University, Chengdu 610031, China
| | - Ruina Li
- Department of Pharmacy, Shenzhen Nanshan District People's Hospital, Nanshan District, Shenzhen 518052, China
| | - Ya Chen
- Department of Clinical Pharmacy and Pharmacy Administration, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Rong Li
- Department of Clinical Pharmacy and Pharmacy Administration, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xuehua Jiang
- Department of Clinical Pharmacy and Pharmacy Administration, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ling Wang
- Department of Clinical Pharmacy and Pharmacy Administration, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
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Zhang Y, Lickteig AJ, Liu J, Csanaky IL, Klaassen CD. Effects of ablation and activation of Nrf2 on bile acid homeostasis in male mice. Toxicol Appl Pharmacol 2020; 403:115170. [PMID: 32738332 DOI: 10.1016/j.taap.2020.115170] [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] [Received: 05/13/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 01/16/2023]
Abstract
The role of nuclear factor erythroid 2-related factor 2 (Nrf2) in bile acid (BA) homeostasis remains controversial. In this study, activation of Nrf2 was achieved either pharmacologically by CDDO-imidazolide (CDDO-Im) or genetically through a "gene dose-response" model consisting of Nrf2-null, wild-type (WT), Keap1-knockdown (Keap1-KD), and Keap1-hepatocyte knockout (Keap1-HKO) mice. In WT mice, CDDO-Im increased bile flow and decreased hepatic BAs, which was associated with a down-regulation of the canalicular BA efflux transporter Bsep and an increase in biliary BA excretion. In contrast, hepatic Bsep and biliary BA excretion were not altered in Keap1-KD or Keap1-HKO mice, suggesting that Nrf2 is not important for regulating Bsep or BA-dependent bile flow. In contrast, hepatic Mrp2 and Mrp3 were up-regulated by both pharmacological and genetic activations of Nrf2. Furthermore, ileal BA transporters (Asbt and Ostβ) and cholesterol transporters (Abcg5 and Abcg8) were down-regulated by both pharmacological and genetic activations of Nrf2, suggesting a role of Nrf2 in intestinal absorption of BAs and cholesterol. In Nrf2-null mice, CDDO-Im down-regulated hepatic BA uptake transporters (Ntcp, Oatp1a1, and Oatp1b2), leading to a 39-fold increase of serum BAs. To conclude, the present study demonstrates that activation of Nrf2 in mice up-regulates Mrp2 and Mrp3 in the liver and down-regulates BA and cholesterol transporters in the intestine.
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Affiliation(s)
- Youcai Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China.
| | - Andrew J Lickteig
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Jing Liu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Iván L Csanaky
- Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Division of Gastroenterology, Children's Mercy Hospital & Clinics, Kansas City, MO 64108, USA; Department of Pediatrics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Curtis D Klaassen
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA.
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Anticholestatic Effect of Bardoxolone Methyl on Hepatic Ischemia-reperfusion Injury in Rats. Transplant Direct 2020; 6:e584. [PMID: 32766432 PMCID: PMC7371100 DOI: 10.1097/txd.0000000000001017] [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: 04/14/2020] [Accepted: 05/04/2020] [Indexed: 11/25/2022] Open
Abstract
Supplemental Digital Content is available in the text. Background. Cholestasis is a sign of hepatic ischemia-reperfusion injury (IRI), which is caused by the dysfunction of hepatocyte membrane transporters (HMTs). As transcriptional regulation of HMTs during oxidative stress is mediated by nuclear factor erythroid 2-related factor 2, we hypothesized that bardoxolone methyl (BARD), a nuclear factor erythroid 2-related factor 2 activator, can mitigate cholestasis associated with hepatic IRI. Methods. BARD (2 mg/kg) or the vehicle was intravenously administered into rats immediately before sham surgery, 60 min of ischemia (IR60), or 90 min of ischemia (IR90); tissue and blood samples were collected after 24 h to determine the effect on key surrogate markers of bile metabolism and expression of HMT genes (Mrp (multidrug resistance-associated protein) 2, bile salt export pump, Mrp3, sodium-taurocholate cotransporter, and organic anion-transporting polypeptide 1). Results. Significantly decreased serum bile acids were detected upon BARD administration in the IR60 group but not in the IR90 group. Hepatic tissue analyses revealed that BARD administration increased mRNA levels of Mrp2 and Mrp3 in the IR60 group, and it decreased those of bile salt export pump in the IR90 group. Protein levels of multidrug resistance–associated protein 2, multidrug resistance–associated protein 3, and sodium-taurocholate cotransporter were higher in the IR90 group relative to those in the sham or IR60 groups, wherein the difference was notable only when BARD was administered. Immunohistochemical and morphometric analyses showed that the area of expression for multidrug resistance–associated protein 2 and for sodium-taurocholate cotransporter was larger in the viable tissues than in the necrotic area, and the area for multidrug resistance–associated protein 3 was smaller; these differences were notable upon BARD administration. Conclusions. BARD may have the potential to change HMT regulation to mitigate cholestasis in hepatic IRI.
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31
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Jasmer KJ, Hou J, Mannino P, Cheng J, Hannink M. Heme oxygenase promotes B-Raf-dependent melanosphere formation. Pigment Cell Melanoma Res 2020; 33:850-868. [PMID: 32558263 DOI: 10.1111/pcmr.12905] [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] [Received: 01/16/2020] [Revised: 05/09/2020] [Accepted: 06/07/2020] [Indexed: 12/22/2022]
Abstract
Biosynthesis and degradation of heme, an iron-bound protoporphyrin molecule utilized by a wide variety of metabolic processes, are tightly regulated. Two closely related enzymes, heme oxygenase 1 (HMOX1) and heme oxygenase 2 (HMOX2), degrade free heme to produce carbon monoxide, Fe2+ , and biliverdin. HMOX1 expression is controlled via the transcriptional activator, NFE2L2, and the transcriptional repressor, Bach1. Transcription of HMOX1 and other NFE2L2-dependent genes is increased in response to electrophilic and reactive oxygen species. Many tumor-derived cell lines have elevated levels of NFE2L2. Elevated expression of NFE2L2-dependent genes contributes to tumor growth and acquired resistance to therapies. Here, we report a novel role for heme oxygenase activity in melanosphere formation by human melanoma-derived cell lines. Transcriptional induction of HMOX1 through derepression of Bach1 or transcriptional activation of HMOX2 by oncogenic B-RafV600E results in increased melanosphere formation. Genetic ablation of HMOX1 diminishes melanosphere formation. Further, inhibition of heme oxygenase activity with tin protoporphyrin markedly reduces melanosphere formation driven by either Bach1 derepression or B-RafV600E expression. Global transcriptome analyses implicate genes involved in focal adhesion and extracellular matrix interactions in melanosphere formation.
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Affiliation(s)
- Kimberly J Jasmer
- Division of Biological Sciences, University of Missouri, Columbia, Missouri, USA.,Christopher Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Jie Hou
- Computer Science Department, University of Missouri, Columbia, Missouri, USA
| | - Philip Mannino
- Christopher Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA.,Department of Biochemistry, University of Missouri, Columbia, Missouri, USA
| | - Jianlin Cheng
- Computer Science Department, University of Missouri, Columbia, Missouri, USA
| | - Mark Hannink
- Christopher Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA.,Department of Biochemistry, University of Missouri, Columbia, Missouri, USA
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32
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Zheng F, Gonçalves FM, Abiko Y, Li H, Kumagai Y, Aschner M. Redox toxicology of environmental chemicals causing oxidative stress. Redox Biol 2020; 34:101475. [PMID: 32336668 PMCID: PMC7327986 DOI: 10.1016/j.redox.2020.101475] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/18/2020] [Accepted: 02/20/2020] [Indexed: 12/17/2022] Open
Abstract
Living organisms are surrounded with heavy metals such as methylmercury, manganese, cobalt, cadmium, arsenic, as well as pesticides such as deltamethrin and paraquat, or atmospheric pollutants such as quinone. Extensive studies have demonstrated a strong link between environmental pollutants and human health. Redox toxicity is proposed as one of the main mechanisms of chemical-induced pathology in humans. Acting as both a sensor of oxidative stress and a positive regulator of antioxidants, the nuclear factor erythroid 2-related factor 2 (NRF2) has attracted recent attention. However, the role NRF2 plays in environmental pollutant-induced toxicity has not been systematically addressed. Here, we characterize NRF2 function in response to various pollutants, such as metals, pesticides and atmospheric quinones. NRF2 related signaling pathways and epigenetic regulations are also reviewed.
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Affiliation(s)
- Fuli Zheng
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, 350122, China; Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY, 10461, United States.
| | - Filipe Marques Gonçalves
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY, 10461, United States
| | - Yumi Abiko
- Environmental Biology Laboratory, Faculty of Medicine, University of Tsukuba, Tsukuba, 305-8575, Japan
| | - Huangyuan Li
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, 350122, China.
| | - Yoshito Kumagai
- Environmental Biology Laboratory, Faculty of Medicine, University of Tsukuba, Tsukuba, 305-8575, Japan.
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY, 10461, United States.
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Cannabidiol protects keratinocyte cell membranes following exposure to UVB and hydrogen peroxide. Redox Biol 2020; 36:101613. [PMID: 32863232 PMCID: PMC7327251 DOI: 10.1016/j.redox.2020.101613] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 06/09/2020] [Accepted: 06/18/2020] [Indexed: 12/16/2022] Open
Abstract
Keratinocytes, the major cell type of the epidermis, are particularly sensitive to environmental factors including exposure to sunlight and chemical agents. Since oxidative stress may arise as a result of these factors, compounds are actively sought that can act as protective agents. Recently, cannabidiol (CBD), a phytocannabinoid found in Cannabis Sativa L., has gained increased interest due to its anti-inflammatory and antioxidant properties, and absence of psychoactive effects. This prompted us to analyze the protective effects of CBD on keratinocytes exposed to UVB irradiation and hydrogen peroxide. Here we show, using liquid chromatography mass spectrometry, that CBD was able to penetrate keratinocytes, and accumulated within the cellular membrane. CBD reduced redox balance shift, towards oxidative stress, caused by exposure UVB/hydrogen peroxide, estimated by superoxide anion radical generation and total antioxidant status and consequently lipid peroxidation level. CBD was found to protect keratinocytes by preventing changes in the composition of the cellular membrane, associated with UVB/hydrogen peroxide damages which included reduced polyunsaturated fatty acid levels, increased sialic acid and lipid peroxidation products (malondialdehyde and 8-isoprostanes) levels. This maintains cell membranes integrity and prevents the release of lactate dehydrogenase. In addition, CBD prevented UVB/hydrogen peroxide-induced reduction of keratinocyte size and zeta potential, and also decreased activity of ATP-binding cassette membrane transporters. Together, these findings suggest that CBD could be a potential protective agent for keratinocytes against the harmful effects of irradiation and chemical environmental factors that cause oxidative stress. UVB/H2O2 stimulates keratinocytes membrane penetration by CBD. CBD protects cells against UVB/H2O2 induced redox imbalance. CBD maintains membrane integrity by preventing its component modifications. CBD decreases activity of ATP-binding cassette membrane transporters. CBD could be a potential keratinocytes protector against the harmful factors.
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Gong Y, Yang Y. Activation of Nrf2/AREs-mediated antioxidant signalling, and suppression of profibrotic TGF-β1/Smad3 pathway: a promising therapeutic strategy for hepatic fibrosis - A review. Life Sci 2020; 256:117909. [PMID: 32512009 DOI: 10.1016/j.lfs.2020.117909] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/19/2020] [Accepted: 06/01/2020] [Indexed: 02/07/2023]
Abstract
Hepatic fibrosis (HF) is a wound-healing response that occurs during chronic liver injury and features by an excessive accumulation of extracellular matrix (ECM) components. Activation of hepatic stellate cell (HSC), the leading effector in HF, is responsible for overproduction of ECM. It has been documented that transforming growth factor-β1 (TGF-β1) stimulates superfluous accumulation of ECM and triggers HSCs activation mainly via canonical Smad-dependent pathway. Also, the pro-fibrogenic TGF-β1 is correlated with generation of reactive oxygen species (ROS) and inhibition of antioxidant mechanisms. Moreover, involvement of oxidative stress (OS) can be clearly elucidated as a fundamental event in liver fibrogenesis. Nuclear factor erythroid 2-related factor 2-antioxidant response elements (Nrf2-AREs) pathway, a group of OS-mediated transcription factors with diverse downstream targets, is associated with the induction of diverse detoxifying enzymes and the most pivotal endogenous antioxidative system. More specifically, Nrf2-AREs pathway has recently assigned as a new therapeutic target for cure of HF. The overall goal of this review will focus on recent findings about activation of Nrf2-AREs-mediated antioxidant and suppression of profibrotic TGF-β1/Smad3 pathway in the liver, providing an overview of recent advances in transcriptional repressors that dislocated during HF formation, and highlighting possible novel therapeutic targets for liver fibrosis.
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Affiliation(s)
- Yongfang Gong
- Department of Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, China
| | - Yan Yang
- Department of Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, China.
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35
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Gao A, Li F, Zhou Q, Chen L. Sestrin2 as a potential therapeutic target for cardiovascular diseases. Pharmacol Res 2020; 159:104990. [PMID: 32505836 DOI: 10.1016/j.phrs.2020.104990] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/17/2020] [Accepted: 05/31/2020] [Indexed: 12/17/2022]
Abstract
Sestrin2 is a cysteine sulfinyl reductase that plays crucial roles in regulation of antioxidant actions. Sestrin2 provides cytoprotection against multiple stress conditions, including hypoxia, endoplasmic reticulum (ER) stress and oxidative stress. Recent research reveals that upregulation of Sestrin2 is induced by various transcription factors such as p53 and activator protein 1 (AP-1), which further promotes AMP-activated protein kinase (AMPK) activation and inhibits mammalian target of rapamycin protein kinase (mTOR) signaling. Sestrin2 triggers autophagy activity to reduce cellular reactive oxygen species (ROS) levels by promoting nuclear factor erythroid 2 (NF-E2)-related factor 2 (Nrf2) activation and Kelch-like ECH-associated protein 1 (Keap1) degradation, which plays a pivotal role in homeostasis of metabolic regulation. Under hypoxia and ER stress conditions, elevated Sestrin2 expression maintains cellular homeostasis through regulation of antioxidant genes. Sestrin2 is responsible for diminishing cellular ROS accumulation through autophagy via AMPK activation, which displays cardioprotection effect in cardiovascular diseases. In this review, we summarize the recent understanding of molecular structure, biological roles and biochemical functions of Sestrin2, and discuss the roles and mechanisms of Sestrin2 in autophagy, hypoxia and ER stress. Understanding the precise functions and exact mechanism of Sestrin2 in cellular homeostasis will provide the evidence for future experimental research and aid in the development of novel therapeutic strategies for cardiovascular diseases.
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Affiliation(s)
- Anbo Gao
- Institute of Pharmacy and Pharmacology, Hengyang Medical School, University of South China, Hengyang 421002, Hunan, People's Republic of China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421002, Hunan, People's Republic of China
| | - Feng Li
- Medical Shcool, Hunan University of Chinese Medicine, Changsha 410000, Hunan, People's Republic of China
| | - Qun Zhou
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua 418000, Hunan, People's Republic of China.
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, Hengyang Medical School, University of South China, Hengyang 421002, Hunan, People's Republic of China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421002, Hunan, People's Republic of China; Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Provincial Science and Technology Department, 28 Western Changshen Road, Hengyang 421002, Hunan, People's Republic of China.
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Panieri E, Telkoparan-Akillilar P, Suzen S, Saso L. The NRF2/KEAP1 Axis in the Regulation of Tumor Metabolism: Mechanisms and Therapeutic Perspectives. Biomolecules 2020; 10:biom10050791. [PMID: 32443774 PMCID: PMC7277620 DOI: 10.3390/biom10050791] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/17/2020] [Accepted: 05/19/2020] [Indexed: 02/07/2023] Open
Abstract
The NRF2/KEAP1 pathway is a fundamental signaling cascade that controls multiple cytoprotective responses through the induction of a complex transcriptional program that ultimately renders cancer cells resistant to oxidative, metabolic and therapeutic stress. Interestingly, accumulating evidence in recent years has indicated that metabolic reprogramming is closely interrelated with the regulation of redox homeostasis, suggesting that the disruption of NRF2 signaling might represent a valid therapeutic strategy against a variety of solid and hematologic cancers. These aspects will be the focus of the present review.
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Affiliation(s)
- Emiliano Panieri
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Sapienza University of Rome, 00185 Rome, Italy
- Correspondence: (E.P.); (L.S.); Tel.: +39-06-4991-2481 (E.P. & L.S.)
| | - Pelin Telkoparan-Akillilar
- Department of Medical Biology, Faculty of Medicine, Yuksek Ihtisas University, 06520 Balgat, Ankara, Turkey;
| | - Sibel Suzen
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, 06100 Tandogan, Ankara, Turkey;
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Sapienza University of Rome, 00185 Rome, Italy
- Correspondence: (E.P.); (L.S.); Tel.: +39-06-4991-2481 (E.P. & L.S.)
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Rodríguez González A, Sahores A, Díaz-Nebreda A, Yaneff A, Di Siervi N, Gómez N, Monczor F, Fernández N, Davio C, Shayo C. MRP4/ABCC4 expression is regulated by histamine in acute myeloid leukemia cells, determining cAMP efflux. FEBS J 2020; 288:229-243. [PMID: 32333821 DOI: 10.1111/febs.15344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 03/02/2020] [Accepted: 04/22/2020] [Indexed: 12/14/2022]
Abstract
Intracellular cAMP (i-cAMP) levels play an important role in acute myeloid leukemia (AML) cell proliferation and differentiation. Its levels are the result of cAMP production, degradation, and exclusion. We have previously described histamine H2 receptors and MRP4/ABCC4 as two potential targets for AML therapy. Acting through histamine H2 receptors, histamine increases cAMP production/synthesis, while MRP4/ABCC4 is responsible for the exclusion of this cyclic nucleotide. In this study, we show that histamine treatment induces MRP4/ABCC4 expression, augmenting cAMP efflux, and that histamine, in combination with MRP inhibitors, is able to reduce AML cell proliferation. Histamine, through histamine H2 receptor, increases i-cAMP levels and induces MRP4 transcript and protein levels in U937, KG1a, and HL-60 cells. Moreover, histamine induces MRP4 promoter activity in HEK293T cells transfected with histamine H2 receptor (HEK293T-H2 R). Our results support that the cAMP/Epac-PKA pathway, and not MEK/ERK nor PI3K/AKT signaling cascades, is involved in histamine-mediated upregulation of MRP4 levels. Finally, the addition of histamine potentiates the inhibition of U937, KG1a, and HL-60 cell proliferation induced by MRP4 inhibitors. Our data highlight that the use of a poly-pharmacological approach aimed at different molecular targets would be beneficial in AML treatment.
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Affiliation(s)
| | - Ana Sahores
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
| | - Antonela Díaz-Nebreda
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), Buenos Aires, Argentina
| | - Agustín Yaneff
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
| | - Nicolás Di Siervi
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
| | - Natalia Gómez
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
| | - Federico Monczor
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
| | - Natalia Fernández
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
| | - Carlos Davio
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
| | - Carina Shayo
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), Buenos Aires, Argentina
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Chen Y, Liu K, Zhang J, Hai Y, Wang P, Wang H, Liu Q, Wong CC, Yao J, Gao Y, Liao Y, Tang X, Wang XJ. c-Jun NH 2 -Terminal Protein Kinase Phosphorylates the Nrf2-ECH Homology 6 Domain of Nuclear Factor Erythroid 2-Related Factor 2 and Downregulates Cytoprotective Genes in Acetaminophen-Induced Liver Injury in Mice. Hepatology 2020; 71:1787-1801. [PMID: 31945188 PMCID: PMC7318587 DOI: 10.1002/hep.31116] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 12/18/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIMS Acetaminophen (APAP) overdose induces severe liver injury and hepatic failure. While the activation of c-Jun NH2 -terminal kinase (JNK) has been implicated as a mechanism in APAP-induced liver injury, the hepatic defense system controlled by nuclear factor erythroid 2-related factor 2 (Nrf2) plays a central role in the mitigation of APAP toxicity. However, the link between the two signaling pathways in APAP-induced liver injury (AILI) remains unclear. APPROACH AND RESULTS In this study, we demonstrated that the activation of JNK in mouse liver following exposure to APAP was correlated with the phosphorylation of Nrf2 and down-regulation of the antioxidant response element (ARE)-driven genes, NAD(P)H:quinone dehydrogenase 1, glutathione S-transferase α3, glutathione S-transferase M1, glutathione S-transferase M5, and aldo-keto reductase 1C. The JNK inhibitor, SP600125, or knockdown of JNK by infection of adenovirus expressing JNK small interfering RNA, ameliorated the APAP induced liver toxicity, and inhibited the phosphorylation of Nrf2 and down-regulation of detoxifying enzymes by stabilizing the transcription factor. Mechanistically, JNK antagonized Nrf2- and ARE-driven gene expression in a Kelch-like ECH-associated protein 1-independent manner. Biochemical analysis revealed that phosphorylated JNK (P-JNK) directly interacted with the Nrf2-ECH homology (Neh) 1 domain of Nrf2 and phosphorylated the serine-aspartate-serine motif 1 (SDS1) region in the Neh6 domain of Nrf2. CONCLUSIONS Mass spectrometric analysis identified serine 335 in the SDS1 region of mNrf2 as the major phosphorylation site for modulation of Nrf2 ubiquitylation by P-JNK. This study demonstrates that Nrf2 is a target of P-JNK in AILI. Our finding may provide a strategy for the treatment of AILI.
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Affiliation(s)
- Yiping Chen
- Department of Pharmacology and Cancer Institute of the Second Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Kaihua Liu
- Department of Pharmacology and Cancer Institute of the Second Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Jingwen Zhang
- Department of Pharmacology and Cancer Institute of the Second Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Yan Hai
- Department of Biochemistry and Department of Thoracic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Peng Wang
- Department of Pharmacology and Cancer Institute of the Second Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Hongyan Wang
- Department of Biochemistry and Department of Thoracic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Qiuyan Liu
- Department of Pharmacology and Cancer Institute of the Second Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Catherine C.L. Wong
- Center for Precision Medicine Multi‐Omics ResearchPeking University Health Science CenterBeijingChina,State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking UniversityBeijingChina,National Center for Protein Science (Shanghai)Institute of Biochemistry and Cell BiologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghaiChina
| | - Jun Yao
- Department of Pharmacology and Cancer Institute of the Second Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Yang Gao
- Department of Biochemistry and Department of Thoracic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Yijiao Liao
- Department of Biochemistry and Department of Thoracic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Xiuwen Tang
- Department of Biochemistry and Department of Thoracic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
| | - Xiu Jun Wang
- Department of Pharmacology and Cancer Institute of the Second Affiliated HospitalZhejiang University School of MedicineZhejiang UniversityHangzhouPR China
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Chen L, Zhang T, Ge M, Liu Y, Xing Y, Liu L, Li F, Cheng L. The Nrf2-Keap1 pathway: A secret weapon against pesticide persecution in Drosophila Kc cells. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 164:47-57. [PMID: 32284136 DOI: 10.1016/j.pestbp.2019.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 12/10/2019] [Accepted: 12/26/2019] [Indexed: 06/11/2023]
Abstract
Nrf2-Keap1 pathway defends organisms against the detrimental effects of oxidative stress, and play pivotal roles in preventing xenobiotic-related toxicity. We designed experiments to explore and verify its role and function under deltamethrin (DM) stress. In experiments, DM was selected as the inducer, and Drosophila Kc cells were treated as the objects. The result showed the oxidative stress of cells proliferated in a very short time after DM treatment, reaching the maximum after one hour of treatment. The experimental data showed Nrf2 could be up-regulated and activated by DM which were manifested by the increase of Nrf2 mRNA, Nrf2 protein in the nucleus and the expression of detoxification enzyme genes. We further tested the activity of all groups, and found the survival rate of cells was basically proportional to the expression of Nrf2. Based on the above experimental results, Keap1 overexpression (K+), Nrf2 overexpression (N+) or interference (N-) cells were used to verified the relationship between Nrf2, cell survival and detoxification enzymes expression. We found the cell survival rate of N+ group was significantly higher than that of other groups and the expression of detoxification enzymes were increased compared to the control group. These results demonstrated that Nrf2 is related to cell detoxification and associated with the tolerance to DM. Our evidence suggested Nrf2 is a potential therapeutic target for oxidative stress and a potential molecular target gene of resistance control.
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Affiliation(s)
- Lu Chen
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Tingting Zhang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Mengying Ge
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Yahui Liu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Yuping Xing
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Liu Liu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Fengliang Li
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang 550009, China
| | - Luogen Cheng
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
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Zhou J, Zhang X, Tang H, Yu J, Zu X, Xie Z, Yang X, Hu J, Tan F, Li Q, Lei X. Nuclear factor erythroid 2 (NF-E2)-related factor 2 (Nrf2) in autophagy-induced hepatocellular carcinoma. Clin Chim Acta 2020; 506:1-8. [PMID: 32109431 DOI: 10.1016/j.cca.2020.02.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/22/2020] [Accepted: 02/24/2020] [Indexed: 12/23/2022]
Abstract
Autophagy, an evolutionarily conserved catabolic process, is the most important pathogenic events in the development and progression of liver diseases. Deregulation of Nrf2 is proposed to play a key pathogenic role in hepatocellular carcinoma (HCC). Under certain pathophysiological conditions, such as oxidative stress, impaired autophagy is accompanied by the Nrf2 activation that leads to the detrimental effects favoring the proliferation and survival of HCC. Elucidating its role and potential mechanism is essential for understanding tumorigenesis and the development of effective clinical application. Nrf2 is participated in HCC proliferation, migration and invasion through autophagy pathways. These includes the negatively regulated-Nrf2 by Keap1 that participates in HCC tumorigenesis via regulating ROS production, in which autophagy may contribute to oxidant metabolic reprogramming of HCC cells. Post-transcriptional modifications, such as phosphorylation and ubiquitination of Nrf2, can be positively or negatively induced by multiple transcription factors. Nrf2 exhibits chemoresistance through its binding sites in the promoter region of the target genes. Nrf2 may be a valuable potential biomarker and therapeutic strategy for diagnostics, prognostics and treatment of HCC.
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Affiliation(s)
- Juan Zhou
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, Key Laboratory of Tumor Microenvironment Response Drug Research, University of South China, Hengyang, Hunan 421001, PR China
| | - Xinxin Zhang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, Key Laboratory of Tumor Microenvironment Response Drug Research, University of South China, Hengyang, Hunan 421001, PR China
| | - Huifang Tang
- The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, PR China
| | - Jia Yu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, Key Laboratory of Tumor Microenvironment Response Drug Research, University of South China, Hengyang, Hunan 421001, PR China
| | - Xuyu Zu
- The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, PR China
| | - Zhizhong Xie
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, Key Laboratory of Tumor Microenvironment Response Drug Research, University of South China, Hengyang, Hunan 421001, PR China
| | - Xiaoyan Yang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, Key Laboratory of Tumor Microenvironment Response Drug Research, University of South China, Hengyang, Hunan 421001, PR China
| | - Juan Hu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, Key Laboratory of Tumor Microenvironment Response Drug Research, University of South China, Hengyang, Hunan 421001, PR China
| | - Fang Tan
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, Key Laboratory of Tumor Microenvironment Response Drug Research, University of South China, Hengyang, Hunan 421001, PR China
| | - Qing Li
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, Key Laboratory of Tumor Microenvironment Response Drug Research, University of South China, Hengyang, Hunan 421001, PR China
| | - Xiaoyong Lei
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, Key Laboratory of Tumor Microenvironment Response Drug Research, University of South China, Hengyang, Hunan 421001, PR China.
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Potential Applications of NRF2 Modulators in Cancer Therapy. Antioxidants (Basel) 2020; 9:antiox9030193. [PMID: 32106613 PMCID: PMC7139512 DOI: 10.3390/antiox9030193] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 02/21/2020] [Accepted: 02/21/2020] [Indexed: 01/17/2023] Open
Abstract
The nuclear factor erythroid 2-related factor 2 (NRF2)-Kelch-like ECH-associated protein 1 (KEAP1) regulatory pathway plays an essential role in protecting cells and tissues from oxidative, electrophilic, and xenobiotic stress. By controlling the transactivation of over 500 cytoprotective genes, the NRF2 transcription factor has been implicated in the physiopathology of several human diseases, including cancer. In this respect, accumulating evidence indicates that NRF2 can act as a double-edged sword, being able to mediate tumor suppressive or pro-oncogenic functions, depending on the specific biological context of its activation. Thus, a better understanding of the mechanisms that control NRF2 functions and the most appropriate context of its activation is a prerequisite for the development of effective therapeutic strategies based on NRF2 modulation. In line of principle, the controlled activation of NRF2 might reduce the risk of cancer initiation and development in normal cells by scavenging reactive-oxygen species (ROS) and by preventing genomic instability through decreased DNA damage. In contrast however, already transformed cells with constitutive or prolonged activation of NRF2 signaling might represent a major clinical hurdle and exhibit an aggressive phenotype characterized by therapy resistance and unfavorable prognosis, requiring the use of NRF2 inhibitors. In this review, we will focus on the dual roles of the NRF2-KEAP1 pathway in cancer promotion and inhibition, describing the mechanisms of its activation and potential therapeutic strategies based on the use of context-specific modulation of NRF2.
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Zhou J, Zhang S, Xu Y, Ye W, Li Z, Chen Z, He Z. Cullin 3 overexpression inhibits lung cancer metastasis and is associated with survival of lung adenocarcinoma. Clin Exp Metastasis 2020; 37:115-124. [PMID: 31463796 DOI: 10.1007/s10585-019-09988-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 08/20/2019] [Indexed: 12/15/2022]
Abstract
Cullin 3 (CUL3), a molecular scaffold of Cullin-RING ubiquitin ligase, plays an important role in regulating biological processes through modulating the ubiquitylation and degradation of various protein substrates. Dysfunction of CUL3 is implicated in the development of several human diseases. However, the clinical significance and prognostic value of CUL3 in lung cancer have not been investigated. This study investigated the CUL3-modulating potential of non-small cell lung cancer cell lines, H1299, H358, H2170 and H520, by using immunoblotting, MTT, migration, invasion, colony formation and in vivo tumorigenicity assays. The prognostic significance of CUL3 was measured by public KM plotter database (http://kmplot.com/analysis/index.php?p=service&cancer=breast) and tissue immunohistochemistry analysis. The public online database analysis revealed that elevated mRNA expression of CUL3 was associated with better prognosis for non-small cell lung cancer and lung adenocarcinoma. In vitro experiments showed that ectopic overexpression of CUL3 significantly inhibited lung adenocarcinoma cell proliferation and migration, and the tumor-suppressive effect of CUL3 was dependent on the Nrf2/RhoA axis. In vivo mice model demonstrated that overexpression of CUL3 lead to a significant reduction of lung adenocarcinoma growth and metastasis. Importantly, tissue immunohistochemistry analysis showed that about 47% of non-small cell lung cancer tissues were expressed of CUL3 at high levels. Overexpression of CUL3 predicted favorable overall survival in non-small cell lung cancer patients, especially in lung adenocarcinoma, but not in lung squamous cell carcinoma patients. CUL3 could serve as a prognostic biomarker for lung adenocarcinoma. Loss of CUL3 might be driving tumorigenesis by activating the Nrf2/RhoA pathway.
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Affiliation(s)
- Jiayu Zhou
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - Shizhen Zhang
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, Zhejiang, China
| | - Yong Xu
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - Weiwen Ye
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - Zhijun Li
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - Zhoumiao Chen
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - Zhengfu He
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang, China.
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Nrf2 Activation and Its Coordination with the Protective Defense Systems in Response to Electrophilic Stress. Int J Mol Sci 2020; 21:ijms21020545. [PMID: 31952233 PMCID: PMC7013553 DOI: 10.3390/ijms21020545] [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: 12/26/2019] [Accepted: 01/11/2020] [Indexed: 12/18/2022] Open
Abstract
Molecular responses mediated by sensor proteins are important for biological defense against electrophilic stresses, such as xenobiotic electrophile exposure. NF-E2-related factor 2 (Nrf2) has an essential function as a master regulator of such cytoprotective molecular responses along with sensor protein Kelch-like ECH-associated protein 1. This review focuses on Nrf2 activation and its involvement with the protective defense systems under electrophilic stresses integrated with our recent findings that reactive sulfur species (RSS) mediate detoxification of electrophiles. The Nrf2 pathway does not function redundantly with the RSS-generating cystathionine γ-lyase pathway, and vice versa.
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44
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Baldwin WS. Phase 0 of the Xenobiotic Response: Nuclear Receptors and Other Transcription Factors as a First Step in Protection from Xenobiotics. NUCLEAR RECEPTOR RESEARCH 2019; 6:101447. [PMID: 31815118 PMCID: PMC6897393 DOI: 10.32527/2019/101447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
This mini-review examines the crucial importance of transcription factors as a first line of defense in the detoxication of xenobiotics. Key transcription factors that recognize xenobiotics or xenobiotic-induced stress such as reactive oxygen species (ROS), include AhR, PXR, CAR, MTF, Nrf2, NF-κB, and AP-1. These transcription factors constitute a significant portion of the pathways induced by toxicants as they regulate phase I-III detoxication enzymes and transporters as well as other protective proteins such as heat shock proteins, chaperones, and anti-oxidants. Because they are often the first line of defense and induce phase I-III metabolism, could these transcription factors be considered the phase 0 of xenobiotic response?
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Affiliation(s)
- William S Baldwin
- Clemson University, Biological Sciences/Environmental Toxicology, 132 Long Hall, Clemson, SC 29634
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Richard F, Creusot T, Catoire S, Egles C, Ficheux H. Mechanisms of pollutant-induced toxicity in skin and detoxification: Anti-pollution strategies and perspectives for cosmetic products. ANNALES PHARMACEUTIQUES FRANÇAISES 2019; 77:446-459. [DOI: 10.1016/j.pharma.2019.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/01/2019] [Accepted: 07/05/2019] [Indexed: 10/25/2022]
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Kahroba H, Shirmohamadi M, Hejazi MS, Samadi N. The Role of Nrf2 signaling in cancer stem cells: From stemness and self-renewal to tumorigenesis and chemoresistance. Life Sci 2019; 239:116986. [PMID: 31678283 DOI: 10.1016/j.lfs.2019.116986] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/12/2019] [Accepted: 10/17/2019] [Indexed: 01/11/2023]
Abstract
Cancer stem cells (CSCs) are subpopulation of tumor mass with exclusive abilities in self-renewing, stemness maintaining, and differentiation into the various non-stem cancer cells to provoke tumorigenesis, metastasis dissemination, drug-resistant, and cancer recurrence. Reactive oxygen species (ROS) impair cellular function by oxidizing cell components containing proteins, lipids, and DNA. Tumor oxidant status is elevated due to high metabolic activity under influence of abnormal growth factors, cytokines and function ROS-producing enzymes, including nitric oxide synthases, cyclooxygenases, and lipoxygenases. Nuclear factor-erythroid 2-related factor 2 (NRF2) is a transcriptional master regulator element which is believed to recognize cellular oxidative stress followed by binding to promoter of cyto-protective and anti-oxidative genes to maintain cellular redox status through promoting antioxidant response participants (glutathione peroxidase, glutathione reductase, thioredoxin reductase, ferritin, NADPH: quinone oxidoreductase 1). However, Nrf2 signaling protects malignant cells from ROS damage against tumor growth and chemoresistance. In addition, Nrf2 is able to participate in differentiation of certain stem cells by modulating autophagy procedure, also NRF2 provokes DNA damage response and facilitates drug metabolism and drug resistance by controlling of downstream enzyme and transporter members. In this review, we discuss the role of NRF2 in stemness, self-renewal ability, tumorigenesis and chemoresistance of CSCs.
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Affiliation(s)
- Houman Kahroba
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoud Shirmohamadi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Saeid Hejazi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nasser Samadi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Kumagai Y, Akiyama M, Unoki T. Adaptive Responses to Electrophilic Stress and Reactive Sulfur Species as their Regulator Molecules. Toxicol Res 2019; 35:303-310. [PMID: 31636841 PMCID: PMC6791667 DOI: 10.5487/tr.2019.35.4.303] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/21/2019] [Accepted: 08/26/2019] [Indexed: 12/14/2022] Open
Abstract
We are exposed to numerous xenobiotic electrophiles on a daily basis through the environment, lifestyle, and dietary habits. Although such reactive species have been associated with detrimental effects, recent accumulated evidence indicates that xenobiotic electrophiles appear to act as signaling molecules. In this review, we introduce our findings on 1) activation of various redox signaling pathways involved in cell proliferation, detoxification/excretion of electrophiles, quality control of cellular proteins, and cell survival during exposure to xenobiotic electrophiles at low concentrations through covalent modification of thiol groups in sensor proteins, and 2) negative regulation of reactive sulfur species (RSS) in the modulation of redox signaling and toxicity caused by xenobiotic electrophiles.
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Affiliation(s)
- Yoshito Kumagai
- Environmental Biology Laboratory, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masahiro Akiyama
- Environmental Biology Laboratory, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Takamitsu Unoki
- Department of Basic Medical Sciences, National Institute for Minamata Disease, Kumamoto, Japan
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Houghton CA. Sulforaphane: Its "Coming of Age" as a Clinically Relevant Nutraceutical in the Prevention and Treatment of Chronic Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2716870. [PMID: 31737167 PMCID: PMC6815645 DOI: 10.1155/2019/2716870] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/24/2019] [Accepted: 09/06/2019] [Indexed: 12/17/2022]
Abstract
A growing awareness of the mechanisms by which phytochemicals can influence upstream endogenous cellular defence processes has led to intensified research into their potential relevance in the prevention and treatment of disease. Pharmaceutical medicine has historically looked to plants as sources of the starting materials for drug development; however, the focus of nutraceutical medicine is to retain the plant bioactive in as close to its native state as possible. As a consequence, the potency of a nutraceutical concentrate or an extract may be lower than required for significant gene expression. The molecular structure of bioactive phytochemicals to a large extent determines the molecule's bioavailability. Polyphenols are abundant in dietary phytochemicals, and extensive in vitro research has established many of the signalling mechanisms involved in favourably modulating human biochemical pathways. Such pathways are associated with core processes such as redox modulation and immune modulation for infection control and for downregulating the synthesis of inflammatory cytokines. Although the relationship between oxidative stress and chronic disease continues to be affirmed, direct-acting antioxidants such as vitamins A, C, and E, beta-carotene, and others have not yielded the expected preventive or therapeutic responses, even though several large meta-analyses have sought to evaluate the potential benefit of such supplements. Because polyphenols exhibit poor bioavailability, few of their impressive in vitro findings have been replicated in vivo. SFN, an aliphatic isothiocyanate, emerges as a phytochemical with comparatively high bioavailability. A number of clinical trials have demonstrated its ability to produce favourable outcomes in conditions for which there are few satisfactory pharmaceutical solutions, foreshadowing the potential for SFN as a clinically relevant nutraceutical. Although myrosinase-inert broccoli sprout extracts are widely available, there now exist myrosinase-active broccoli sprout supplements that yield sufficient SFN to match the doses used in clinical trials.
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Yu L, Wang T, Que R, Yang J, Wang Z, Jiang X, Wang L. The potentially protective role of ATP-binding cassette transporters in preeclampsia via Nrf2. Pregnancy Hypertens 2019; 18:21-28. [PMID: 31445436 DOI: 10.1016/j.preghy.2019.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 07/25/2019] [Accepted: 08/09/2019] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Preeclampsia (PE) is a severe placental syndrome that likely results from placental oxidative stress and inflammation, and can lead to maternal hypertension and premature delivery. Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) activates several genes involved in antioxidant defense in the placentae, along with the ATP-binding cassette (ABC) transporters which regulate substrate flow between maternal and fetal circulation. Although several ABC transporters are down-regulated in PE, their exact mechanistic role is poorly understood. METHODS& RESULTS: In this study, we compared the levels of major ABC transporters and NRF2 in placentae of healthy full-term pregnant women and those with early and term onset PE. We found a significant decrease in the levels of Nrf2 and several ABC transporters in the placentae of early onset compared to term onset PE. In addition, women with term onset PE showed improved post-partum parameters (lower blood pressure, and greater placental and neonatal weights) compared to those with early onset PE. Mechanistically, Nrf2 knockdown/knockout downregulated the genes for ABC transporters and antioxidant enzymes, and upregulated pro-inflammatory factors, whereas Nrf2 upregulation had the opposite effects. CONCLUSIONS Nrf2 protects the placenta against PE by activating the ABC transporter-mediated efflux, indicating a novel target in PE therapy.
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Affiliation(s)
- Lu Yu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610064, China
| | - Ting Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610064, China; Department of Pharmacy, Sichuan Cancer Hospital & Institution, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Rongcheng Que
- West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Jillian Yang
- Department of Pharmaceutical Sciences, College of Pharmacy, Marshall B. Ketchum University, Fullerton, CA 92831, USA
| | - Zhijun Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, Marshall B. Ketchum University, Fullerton, CA 92831, USA
| | - Xuehua Jiang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610064, China
| | - Ling Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610064, China.
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Ramos-Tovar E, Muriel P. Free radicals, antioxidants, nuclear factor-E2-related factor-2 and liver damage. J Appl Toxicol 2019; 40:151-168. [PMID: 31389060 DOI: 10.1002/jat.3880] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/03/2019] [Accepted: 07/04/2019] [Indexed: 12/11/2022]
Abstract
Oxidative/nitrosative stress is proposed to be a critical factor in various diseases, including liver pathologies. Antioxidants derived from medicinal plants have been studied extensively and are relevant to many illnesses, including liver diseases. Several hepatic disorders, such as viral hepatitis and alcoholic or nonalcoholic steatohepatitis, involve free radicals/oxidative stress as agents that cause or at least exacerbate liver injury, which can result in chronic liver diseases, such as liver fibrosis, cirrhosis and end-stage hepatocellular carcinoma. In this scenario, nuclear factor-E2-related factor-2 (Nrf2) appears to be an essential factor to counteract or attenuate oxidative or nitrosative stress in hepatic cells. In fact, a growing body of evidence indicates that Nrf2 plays complex and multicellular roles in hepatic inflammation, fibrosis, hepatocarcinogenesis and regeneration via the induction of its target genes. Inflammation is the most common feature of chronic liver diseases, triggering fibrosis, cirrhosis and hepatocellular carcinoma. Increasing evidence indicates that Nrf2 counteracts the proinflammatory process by modulating the recruitment of inflammatory cells and inducing the endogenous antioxidant response of the cell. In this review, the interactions between antioxidant and inflammatory molecular pathways are analyzed.
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Affiliation(s)
- Erika Ramos-Tovar
- Laboratory of Experimental Hepatology, Department of Pharmacology, Cinvestav-IPN, Mexico City, Mexico
| | - Pablo Muriel
- Laboratory of Experimental Hepatology, Department of Pharmacology, Cinvestav-IPN, Mexico City, Mexico
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