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Asif Ali M, Khan N, Kaleem N, Ahmad W, Alharethi SH, Alharbi B, Alhassan HH, Al-Enazi MM, Razis AFA, Modu B, Calina D, Sharifi-Rad J. Anticancer properties of sulforaphane: current insights at the molecular level. Front Oncol 2023; 13:1168321. [PMID: 37397365 PMCID: PMC10313060 DOI: 10.3389/fonc.2023.1168321] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/16/2023] [Indexed: 07/04/2023] Open
Abstract
Sulforaphane (SFN) is an isothiocyanate with multiple biomedical applications. Sulforaphane can be extracted from the plants of the genus Brassica. However, broccoli sprouts are the chief source of sulforaphane and are 20 to 50 times richer than mature broccoli as they contain 1,153 mg/100 g. SFN is a secondary metabolite that is produced as a result of the hydrolysis of glucoraphanin (a glucosinolate) by the enzyme myrosinase. This review paper aims to summarize and understand the mechanisms behind the anticancer potential of sulforaphane. The data was collected by searching PubMed/MedLine, Scopus, Web of Science, and Google Scholar. This paper concludes that sulforaphane provides cancer protection through the alteration of various epigenetic and non-epigenetic pathways. It is a potent anticancer phytochemical that is safe to consume with minimal side effects. However, there is still a need for further research regarding SFN and the development of a standard dose.
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Affiliation(s)
- Muhammad Asif Ali
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Noohela Khan
- Department of Nutrition Sciences, Rashid Latif Medical College, Lahore, Pakistan
| | - Nabeeha Kaleem
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Waqas Ahmad
- Department of Food Science and Human Nutrition, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Salem Hussain Alharethi
- Department of Biological Science, College of Arts and Science, Najran University, Najran, Saudi Arabia
| | - Bandar Alharbi
- Department of Medical Laboratory Science, College of Applied Medical Sciences, University of Ha’il, Hail, Saudi Arabia
| | - Hassan H. Alhassan
- Department of Clinical Laboratory Science, College of Applied medical Sciences, Jouf University, Sakaka, Saudi Arabia
| | - Maher M. Al-Enazi
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Ahmad Faizal Abdull Razis
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Natural Medicines and Products Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Babagana Modu
- Natural Medicines and Products Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Science, University of Maiduguri, Maiduguri, Borno, Nigeria
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, Craiova, Romania
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2
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Mak K, Shiming Z, Epemolu O, Dinkova‐Kostova AT, Wells G, Gazaryan IG, Sakirolla R, Mohd Z, Pichika MR. Synthesis and Anti-Inflammatory Activity of 2-Amino-4,5,6,7-tetrahydrobenzo[b]thiophene-Derived NRF2 Activators. Chemistry 2022; 11:e202200181. [PMID: 36284193 PMCID: PMC9596610 DOI: 10.1002/open.202200181] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/11/2022] [Indexed: 11/28/2022]
Abstract
This is the first study investigating the nuclear factor (erythroid‐derived 2)‐like 2 (NRF2) activity of compounds containing a new scaffold, tetrahydrobenzo[b]thiophene. Eighteen compounds were synthesised and confirmed their NRF2 activation through NQO1 enzymatic activity and mRNA expression of NQO1 and HO‐1 in Hepa‐1c1c7 cells. The compounds disrupted the interaction between Kelch‐like ECH‐associated protein 1 (KEAP1) and NRF2 via interfering with the KEAP1’s Kelch domain. The compounds exhibited anti‐inflammatory activity in Escherichia coli Lipopolysaccharide (LPSEc)‐stimulated RAW 264.7 cells. The anti‐inflammatory activity of the compounds was associated with their ability to activate NRF2. The compounds reversed the elevated levels of pro‐inflammatory cytokines (IL‐1β, IL‐6, TNF‐α, and IFN‐γ) and inflammatory mediators (PGE2, COX‐2, and NF‐κB). The compounds were metabolically stable in human, rat, and mouse liver microsomes and showed optimum half‐life (T1/2) and intrinsic clearance (Clint). The binding mode of the compounds and physicochemical properties were predicted via in silico studies.
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Affiliation(s)
- Kit‐Kay Mak
- Pharmaceutical Chemistry DepartmentInternational Medical University126 Jalan Jalil Perkasa 19, Bukit Jalil57000Kuala LumpurMalaysia,Centre of Excellence for Bioactive Molecules and Drug DeliveryInstitute for ResearchDevelopment, and Innovation (IRDI)International Medical University126 Jalan Jalil Perkasa 19 Bukit Jalil57000Kuala LumpurMalaysia,School of Postgraduate StudiesInternational Medical University126 Jalan Jalil Perkasa 19 Bukit Jalil57000Kuala LumpurMalaysia
| | - Zhang Shiming
- School of Postgraduate StudiesInternational Medical University126 Jalan Jalil Perkasa 19 Bukit Jalil57000Kuala LumpurMalaysia
| | - Ola Epemolu
- Principal research scientist- in vitro/in vivo DMPKCharles River Laboratories Edinburgh LtdTranent, East LothianScotlandUK
| | - Albena T. Dinkova‐Kostova
- School of MedicineJacqui Wood Cancer CentreUniversity of DundeeDundeeScotlandUK,Departments of Medicine and Pharmacology and Molecular SciencesJohns Hopkins UniversityBaltimore, MAUSA
| | - Geoffrey Wells
- UCL School of PharmacyUniversity College LondonLondonWC1N 1AXUK
| | - Irina G. Gazaryan
- Faculty of Biology and BiotechnologyNational Research University Higher School of EconomicsMoscowRussia,Department of Chemical EnzymologyM.V. Lomonosov Moscow State UniversityMoscowRussia,Department of Chemistry and Physical SciencesPace UniversityPleasantville, NYUSA
| | | | - Zulkefeli Mohd
- Pharmaceutical Chemistry DepartmentInternational Medical University126 Jalan Jalil Perkasa 19, Bukit Jalil57000Kuala LumpurMalaysia,Centre of Excellence for Bioactive Molecules and Drug DeliveryInstitute for ResearchDevelopment, and Innovation (IRDI)International Medical University126 Jalan Jalil Perkasa 19 Bukit Jalil57000Kuala LumpurMalaysia
| | - Mallikarjuna Rao Pichika
- Pharmaceutical Chemistry DepartmentInternational Medical University126 Jalan Jalil Perkasa 19, Bukit Jalil57000Kuala LumpurMalaysia,Centre of Excellence for Bioactive Molecules and Drug DeliveryInstitute for ResearchDevelopment, and Innovation (IRDI)International Medical University126 Jalan Jalil Perkasa 19 Bukit Jalil57000Kuala LumpurMalaysia
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3
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Lee JA, Kwon YW, Kim HR, Shin N, Son HJ, Cheong CS, Kim DJ, Hwang O. A Novel Pyrazolo[3,4- d]pyrimidine Induces Heme Oxygenase-1 and Exerts Anti-Inflammatory and Neuroprotective Effects. Mol Cells 2022; 45:134-147. [PMID: 34887364 PMCID: PMC8926863 DOI: 10.14348/molcells.2021.0074] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 09/14/2021] [Accepted: 10/15/2021] [Indexed: 11/27/2022] Open
Abstract
The anti-oxidant enzyme heme oxygenase-1 (HO-1) is known to exert anti-inflammatory effects. From a library of pyrazolo[3,4-d]pyrimidines, we identified a novel compound KKC080096 that upregulated HO-1 at the mRNA and protein levels in microglial BV-2 cells. KKC080096 exhibited anti-inflammatory effects via suppressing nitric oxide, interleukin-1β (IL-1β), and iNOS production in lipopolysaccharide (LPS)-challenged cells. It inhibited the phosphorylation of IKK and MAP kinases (p38, JNK, ERK), which trigger inflammatory signaling, and whose activities are inhibited by HO-1. Further, KKC080096 upregulated anti-inflammatory marker (Arg1, YM1, CD206, IL-10, transforming growth factor-β [TGF-β]) expression. In 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-treated mice, KKC080096 lowered microglial activation, protected the nigral dopaminergic neurons, and nigral damage-associated motor deficits. Next, we elucidated the mechanisms by which KKC080096 upregulated HO-1. KKC080096 induced the phosphorylation of AMPK and its known upstream kinases LKB1 and CaMKKbeta, and pharmacological inhibition of AMPK activity reduced the effects of KKC080096 on HO-1 expression and LPS-induced NO generation, suggesting that KKC080096-induced HO-1 upregulation involves LKB1/AMPK and CaMKKbeta/AMPK pathway activation. Further, KKC080096 caused an increase in cellular Nrf2 level, bound to Keap1 (Nrf2 inhibitor protein) with high affinity, and blocked Keap1-Nrf2 interaction. This Nrf2 activation resulted in concurrent induction of HO-1 and other Nrf2-targeted antioxidant enzymes in BV-2 and in dopaminergic CATH.a cells. These results indicate that KKC080096 is a potential therapeutic for oxidative stress- and inflammation-related neurodegenerative disorders such as Parkinson's disease.
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Affiliation(s)
- Ji Ae Lee
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Young-Won Kwon
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Hye Ri Kim
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Nari Shin
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Hyo Jin Son
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Chan Seong Cheong
- Center for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Korea
| | - Dong Jin Kim
- Center for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Korea
| | - Onyou Hwang
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, Korea
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Fahey JW, Kensler TW. The Challenges of Designing and Implementing Clinical Trials With Broccoli Sprouts… and Turning Evidence Into Public Health Action. Front Nutr 2021; 8:648788. [PMID: 33996874 PMCID: PMC8116591 DOI: 10.3389/fnut.2021.648788] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 03/29/2021] [Indexed: 12/19/2022] Open
Abstract
Broccoli sprouts are a convenient and rich source of the glucosinolate glucoraphanin, which can generate the chemopreventive agent sulforaphane through the catalytic actions of plant myrosinase or β-thioglucosidases in the gut microflora. Sulforaphane, in turn, is an inducer of cytoprotective enzymes through activation of Nrf2 signaling, and a potent inhibitor of carcinogenesis in multiple murine models. Sulforaphane is also protective in models of diabetes, neurodegenerative disease, and other inflammatory processes, likely reflecting additional actions of Nrf2 and interactions with other signaling pathways. Translating this efficacy into the design and implementation of clinical chemoprevention trials, especially food-based trials, faces numerous challenges including the selection of the source, placebo, and dose as well as standardization of the formulation of the intervention material. Unlike in animals, purified sulforaphane has had very limited use in clinical studies. We have conducted a series of clinical studies and randomized clinical trials to evaluate the effects of composition (glucoraphanin-rich [± myrosinase] vs. sulforaphane-rich or mixture beverages), formulation (beverage vs. tablet) and dose, on the efficacy of these broccoli sprout-based preparations to evaluate safety, pharmacokinetics, pharmacodynamic action, and clinical benefit. While the challenges for the evaluation of broccoli sprouts in clinical trials are themselves formidable, further hurdles must be overcome to bring this science to public health action.
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Affiliation(s)
- Jed W. Fahey
- Department of Medicine, Division of Clinical Pharmacology, Johns Hopkins School of Medicine, Baltimore, MD, United States
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, United States
- Department of Pharmacology and Molecular Sciences, Johns Hopkins School of Medicine, Baltimore, MD, United States
- Department of Nutrition and Food Studies, College of Health and Human Services, George Mason University, Fairfax, VA, United States
| | - Thomas W. Kensler
- Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
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5
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Harris CM, Zamperoni KE, Sernoskie SC, Chow NSM, Massey TE. Effects of in vivo treatment of mice with sulforaphane on repair of DNA pyridyloxylbutylation. Toxicology 2021; 454:152753. [PMID: 33741493 DOI: 10.1016/j.tox.2021.152753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 01/08/2023]
Abstract
The phytochemical sulforaphane (SF) has gained interest for its apparent association with reduced cancer risk and other cytoprotective properties, at least some of which are attributed to activation of the transcription factor Nrf2. Repair of bulky DNA adducts is important for mitigating carcinogenesis from exogenous DNA damaging agents, but it is unknown whether in vivo treatment with SF affects adduct repair. At 12 h following a single oral dose of 100 mg/kg SF, an almost doubling in activity for repair of pyridyloxobutylated DNA was observed in CD-1 mouse liver nuclear extracts, but not in lung extracts. This change at 12 h in repair activity was preceded by the induction of Nrf2-regulated genes but not accompanied by changes in levels of the specific nucleotide excision repair (NER) proteins XPC, XPA, XPB and p53 or in binding of hepatic XPC, XPA and XPB to damaged DNA. SF also did not significantly alter histone deacetylase activity as measured by acetylated histone H3 levels, or stimulate formation of γ-H2A.X, a marker of DNA damage. A significant reduction in oxidative DNA damage, as measured by 8-OHdG (a biomarker of oxidative DNA damage), was observed only in DNA from the lungs of SF-treated mice 3 h post-dosing. These results suggest that the ability of SF to increase bulky adduct repair activity is organ-selective and is consistent with activation of the Nrf2 signaling pathway.
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Affiliation(s)
- Christopher M Harris
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Kristen E Zamperoni
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Samantha C Sernoskie
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Natalie S M Chow
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Thomas E Massey
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, K7L 3N6, Canada.
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6
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Yagishita Y, Gatbonton-Schwager TN, McCallum ML, Kensler TW. Current Landscape of NRF2 Biomarkers in Clinical Trials. Antioxidants (Basel) 2020; 9:antiox9080716. [PMID: 32784785 PMCID: PMC7464243 DOI: 10.3390/antiox9080716] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/02/2020] [Accepted: 08/05/2020] [Indexed: 12/12/2022] Open
Abstract
The transcription factor NF-E2 p45-related factor 2 (NRF2; encoded by NFE2L2) plays a critical role in the maintenance of cellular redox and metabolic homeostasis, as well as the regulation of inflammation and cellular detoxication pathways. The contribution of the NRF2 pathway to organismal homeostasis is seen in many studies using cell lines and animal models, raising intense attention towards targeting its clinical promise. Over the last three decades, an expanding number of clinical studies have examined NRF2 inducers targeting an ever-widening range of diseases. Full understanding of the pharmacokinetic and pharmacodynamic properties of drug candidates rely partly on the identification, validation, and use of biomarkers to optimize clinical applications. This review focuses on results from clinical trials with four agents known to target NRF2 signaling in preclinical studies (dimethyl fumarate, bardoxolone methyl, oltipraz, and sulforaphane), and evaluates the successes and limitations of biomarkers focused on expression of NRF2 target genes and others, inflammation and oxidative stress biomarkers, carcinogen metabolism and adduct biomarkers in unavoidably exposed populations, and targeted and untargeted metabolomics. While no biomarkers excel at defining pharmacodynamic actions in this setting, it is clear that these four lead clinical compounds do touch the NRF2 pathway in humans.
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7
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Lee JA, Kim HR, Son HJ, Shin N, Han SH, Cheong CS, Kim DJ, Hwang O. A novel pyrazolo [3,4-d] pyrimidine, KKC080106, activates the Nrf2 pathway and protects nigral dopaminergic neurons. Exp Neurol 2020; 332:113387. [PMID: 32580013 DOI: 10.1016/j.expneurol.2020.113387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 05/20/2020] [Accepted: 06/18/2020] [Indexed: 11/26/2022]
Abstract
The transcription factor nuclear factor-erythroid 2-related factor-2 (Nrf2) is known to induce neuroprotective and anti-inflammatory effects and is considered to be an excellent molecular target for drugs related to neurodegenerative disease therapy. Nrf2 activators previously tested in clinical trials were electrophilic, causing adverse effects due to non-selective and covalent modification of cellular thiols. In order to circumvent this issue, we constructed and screened a chemical library consisting of 241 pyrazolo [3,4-d] pyrimidine derivatives and discovered a novel, non-electrophilic compound: 1-benzyl-6-(methylthio)-N-(1-phenylethyl)-1H-pyrazolo[3,4-d]pyrimidine-4-amine (KKC080106). KKC080106 was able to activate Nrf2 signaling as it increases the cellular levels of Nrf2, binds to the Nrf2 inhibitor protein Keap1, and causes the accumulation of nuclear Nrf2. We also observed an increase in the expression levels of Nrf2-dependent genes for antioxidative/neuroprotective enzymes in dopaminergic neuronal cells. In addition, in lipopolysaccharide-activated microglia, KKC080106 suppressed the generation of the proinflammatory markers, such as IL-1β, TNF-α, cyclooxygenase-2, inducible nitric oxide synthase, and nitric oxide, and inhibited the phosphorylation of kinases known to be involved in inflammatory signaling, such as IκB kinase, p38, JNK, and ERK. As a drug, KKC080106 exhibited excellent stability against plasma enzymes and a good safety profile, evidenced by no mortality after the administration of 2000 mg/kg body weight, and minimal inhibition of the hERG channel activity. Pharmacokinetic analysis revealed that KKC080106 has good bioavailability and enters the brain after oral and intravenous administration, in both rats and mice. In MPTP-treated mice that received KKC080106 orally, the compound blocked microglial activation, protected the nigral dopaminergic neurons from degeneration, and prevented development of the dopamine deficiency-related motor deficits. These results suggest that KKC080106 has therapeutic potential for neurodegenerative disorders such as Parkinson's disease.
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Affiliation(s)
- Ji Ae Lee
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Hye Ri Kim
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Hyo Jin Son
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Nari Shin
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Se Hee Han
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Chan Seong Cheong
- Center for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | - Dong Jin Kim
- Center for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Seoul, South Korea.
| | - Onyou Hwang
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul, South Korea.
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8
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Song IY, Snyder AM, Kim Y, Neely EB, Wade QW, Connor JR. The Nrf2-mediated defense mechanism associated with HFE genotype limits vulnerability to oxidative stress-induced toxicity. Toxicology 2020; 441:152525. [PMID: 32540480 DOI: 10.1016/j.tox.2020.152525] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/25/2020] [Accepted: 06/11/2020] [Indexed: 02/07/2023]
Abstract
There is considerable interest in gene and environment interactions in neurodegenerative diseases. The HFE (homeostatic iron regulator) gene variant (H63D) is highly prevalent in the population and has been investigated as a disease modifier in multiple neurodegenerative diseases. We have developed a mouse model to interrogate the impact of this gene variant in a model of paraquat toxicity. Using primary astrocytes, we found that the H67D-Hfe(equivalent of the human H63D variant) astrocytes are less vulnerable than the WT-Hfe astrocytes to paraquat-induced cell death, mitochondrial damage, and cellular senescence. We hypothesized that the Hfe variant-associated protection is a result of the activation of the Nrf2 antioxidant defense system and found a significant increase in Nrf2 levels after paraquat exposure in the H67D-Hfe astrocytes than the WT-Hfe astrocytes. Moreover, decreasing Nrf2 by molecular or pharmaceutical manipulation resulted in increased vulnerability to paraquat in the H67D-Hfe astrocytes. To further elucidate the role of Hfe variant genotype in neuroprotection mediated by astrocytes, we added media from the paraquat-treated astrocytes to differentiated SH-SY5Y neuroblastoma cells and found a significantly larger reduction in the viability when treated with WT-Hfe astrocyte media than the H67D-Hfe astrocyte media possibly due to higher secretion of IL-6 observed in the WT-Hfe astrocytes. To further explore the mechanism of Nrf2 protection, we measured NQO1, the Nrf2-mediated antioxidant, in primary astrocytes and found a significantly higher NQO1 level in the H67D-Hfe astrocytes. To consider the translational potential of our findings, we utilized the PPMI (Parkinson's Progression Markers Initiative) clinical database and found that, consistent with the mouse study, H63D-HFE carriers had a significantly higher NQO1 level in the CSF than the WT-HFE carriers. Consistent with our previous reports on H63D-HFE in disease, these data further suggest that HFE genotype in the human population impacts the antioxidant defense system and can therefore alter pathogenesis.
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Affiliation(s)
- Insung Y Song
- Department of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania 17033, United States.
| | - Amanda M Snyder
- Department of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania 17033, United States
| | - Yunsung Kim
- Department of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania 17033, United States
| | - Elizabeth B Neely
- Department of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania 17033, United States
| | - Quinn W Wade
- Department of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania 17033, United States
| | - James R Connor
- Department of Neurosurgery, M.S. Hershey Penn State University College of Medicine, M.S. Hershey Medical Center, Hershey, Pennsylvania 17033, United States
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9
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Saez D, Dushime R, Wu H, Ramos Cordova LB, Shukla K, Brown-Harding H, Furdui CM, Tsang AW. Sulforaphane promotes chlamydial infection by suppressing mitochondrial protein oxidation and activation of complement C3. Protein Sci 2020; 28:216-227. [PMID: 30367535 DOI: 10.1002/pro.3536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/22/2018] [Accepted: 10/22/2018] [Indexed: 12/30/2022]
Abstract
Sulforaphane (SFN), a phytochemical found in broccoli and other cruciferous vegetables, is a potent antioxidant and anti-inflammatory agent with reported effects in cancer chemoprevention and suppression of infection with intracellular pathogens. Here we report on the impact of SFN on infection with Chlamydia trachomatis (Ct), a common sexually transmitted pathogen responsible for 131 million new cases annually worldwide. Astoundingly, we find that SFN as well as broccoli sprouts extract (BSE) promote Ct infection of human host cells. Both the number and size of Ct inclusions were increased when host cells were pretreated with SFN or BSE. The initial investigations presented here point to both the antioxidant and thiol alkylating properties of SFN as regulators of Ct infection. SFN decreased mitochondrial protein sulfenylation and promoted Ct development, which were both reversed by treatment with mitochondria-targeted paraquat (MitoPQ). Inhibition of the complement component 3 (complement C3) by SFN was also identified as a mechanism by which SFN promotes Ct infections. Mass spectrometry analysis found alkylation of cysteine 1010 (Cys1010) in complement C3 by SFN. The studies reported here raise awareness of the Ct infection promoting activity of SFN, and also identify potential mechanisms underlying this activity.
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Affiliation(s)
- Daniel Saez
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Rosine Dushime
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Hanzhi Wu
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Lourdes B Ramos Cordova
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Kirtikar Shukla
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | | | - Cristina M Furdui
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Allen W Tsang
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
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10
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Yagishita Y, Fahey JW, Dinkova-Kostova AT, Kensler TW. Broccoli or Sulforaphane: Is It the Source or Dose That Matters? Molecules 2019; 24:E3593. [PMID: 31590459 PMCID: PMC6804255 DOI: 10.3390/molecules24193593] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 10/02/2019] [Indexed: 12/18/2022] Open
Abstract
There is robust epidemiological evidence for the beneficial effects of broccoli consumption on health, many of them clearly mediated by the isothiocyanate sulforaphane. Present in the plant as its precursor, glucoraphanin, sulforaphane is formed through the actions of myrosinase, a β-thioglucosidase present in either the plant tissue or the mammalian microbiome. Since first isolated from broccoli and demonstrated to have cancer chemoprotective properties in rats in the early 1990s, over 3000 publications have described its efficacy in rodent disease models, underlying mechanisms of action or, to date, over 50 clinical trials examining pharmacokinetics, pharmacodynamics and disease mitigation. This review evaluates the current state of knowledge regarding the relationships between formulation (e.g., plants, sprouts, beverages, supplements), bioavailability and efficacy, and the doses of glucoraphanin and/or sulforaphane that have been used in pre-clinical and clinical studies. We pay special attention to the challenges for better integration of animal model and clinical studies, particularly with regard to selection of dose and route of administration. More effort is required to elucidate underlying mechanisms of action and to develop and validate biomarkers of pharmacodynamic action in humans. A sobering lesson is that changes in approach will be required to implement a public health paradigm for dispensing benefit across all spectrums of the global population.
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Affiliation(s)
- Yoko Yagishita
- Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
| | - Jed W Fahey
- Department of Medicine, Division of Clinical Pharmacology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA.
- Department of Pharmacology and Molecular Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA.
- Cullman Chemoprotection Center, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA.
| | - Albena T Dinkova-Kostova
- Department of Pharmacology and Molecular Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA.
- Cullman Chemoprotection Center, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA.
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, Scotland DD1 9SY, UK.
| | - Thomas W Kensler
- Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
- Cullman Chemoprotection Center, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA.
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Selected Office Based Anticancer Treatment Strategies. JOURNAL OF ONCOLOGY 2019; 2019:7462513. [PMID: 30766601 PMCID: PMC6350558 DOI: 10.1155/2019/7462513] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 01/06/2019] [Indexed: 12/16/2022]
Abstract
Over the years, the treatment of patients with cancer has varied widely as much because of recent advancements in science and medicine as the philosophies that belie their use. This paper briefly describes many of the prevailing approaches in use today with an attempt to offer some perspective of how to apply these disparate methodologies so that they may be more effectively integrated, resulting in consistently better clinical responses.
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Bansal M, Singh N, Pal S, Dev I, Ansari KM. Chemopreventive Role of Dietary Phytochemicals in Colorectal Cancer. ADVANCES IN MOLECULAR TOXICOLOGY 2018. [DOI: 10.1016/b978-0-444-64199-1.00004-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Gründemann C, Huber R. Chemoprevention with isothiocyanates - From bench to bedside. Cancer Lett 2017; 414:26-33. [PMID: 29111351 DOI: 10.1016/j.canlet.2017.10.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/10/2017] [Accepted: 10/20/2017] [Indexed: 12/15/2022]
Abstract
Isothiocyanates (ITCs) are naturally occurring hydrolization products from glucosinolates (GLSs) in brassicaceae and in epidemiological studies their intake has been weakly to moderately inversely correlated with the risk of colorectal cancer, prostate cancer and lung cancer. Numerous preclinical studies demonstrate chemopreventive mode of actions of ITCs, mainly related to a.) detoxification (induction of phase II enzymes), b.) anti-inflammatory properties by down-regulation of NFkappaB activity, c.) cyclin-mediated cell cycle arrest and d.) epigenetic modulation by inhibition of histone deacetylase activity. First prospective clinical trials were promising in patients with risk of prostate cancer recurrence. The glutathione-S-transferase gene expression seems to play a major role in the individual susceptibility towards ITCs. Safety issues are widely unclear and should be more addressed in future studies because ITCs can, in low concentrations, compromise the function of human immune cells and might impair genome stability.
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Affiliation(s)
- Carsten Gründemann
- Center for Complementary Medicine, Institute for Infection Prevention and Hospital Epidemiology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Roman Huber
- Center for Complementary Medicine, Institute for Infection Prevention and Hospital Epidemiology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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Comhaire F, Mahmoud A. The andrologist's contribution to a better life for ageing men: part 2. Andrologia 2015; 48:99-110. [PMID: 26395368 DOI: 10.1111/and.12489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2015] [Indexed: 02/06/2023] Open
Abstract
The long-term intake of a judiciously composed nutriceutical containing low-dose vitamins, antioxidants, minerals and particular herbal preparations seems justified for older persons who take medication, or who consume an unbalanced diet, or who are exposed to environmental toxins. Recent reports suggest these nutriceuticals may delay age-related diseases and the occurrence of cancer, and reduce mortality in apparently healthy ageing men. Food supplementation with a nutriceutical that was formulated particularly for ageing men should result in an increase of at least one quality-adjusted life year and may lower the financial and social burden of disease in elderly people.
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Affiliation(s)
- F Comhaire
- Department of Endocrinology, University Hospital Gent, Gent, Belgium
| | - A Mahmoud
- Department of Endocrinology, University Hospital Gent, Gent, Belgium
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Wagner AE, Sturm C, Piegholdt S, Wolf IM, Esatbeyoglu T, De Nicola GR, Iori R, Rimbach G. Myrosinase-treated glucoerucin is a potent inducer of the Nrf2 target gene heme oxygenase 1 — studies in cultured HT-29 cells and mice. J Nutr Biochem 2015; 26:661-6. [DOI: 10.1016/j.jnutbio.2015.01.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 12/21/2014] [Accepted: 01/09/2015] [Indexed: 12/30/2022]
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Baier SR, Nguyen C, Xie F, Wood JR, Zempleni J. MicroRNAs are absorbed in biologically meaningful amounts from nutritionally relevant doses of cow milk and affect gene expression in peripheral blood mononuclear cells, HEK-293 kidney cell cultures, and mouse livers. J Nutr 2014; 144:1495-500. [PMID: 25122645 PMCID: PMC4162473 DOI: 10.3945/jn.114.196436] [Citation(s) in RCA: 295] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 06/21/2014] [Accepted: 07/17/2014] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) regulate genes in animals and plants and can be synthesized endogenously. In milk, miRNAs are encapsulated in exosomes, thereby conferring protection against degradation and facilitating uptake by endocytosis. The majority of bovine miRNAs have nucleotide sequences complementary to human gene transcripts, suggesting that miRNAs in milk might regulate human genes. OBJECTIVES We tested the hypotheses that humans absorb biologically meaningful amounts of miRNAs from nutritionally relevant doses of milk, milk-borne miRNAs regulate human gene expression, and mammals cannot compensate for dietary miRNA depletion by endogenous miRNA synthesis. METHODS Healthy adults (3 men, 2 women; aged 26-49 y) consumed 0.25, 0.5, and 1.0 L of milk in a randomized crossover design. Gene expression studies and milk miRNA depletion studies were conducted in human cell cultures and mice, respectively. For comparison, feeding studies with plant miRNAs from broccoli were conducted in humans. RESULTS Postprandial concentration time curves suggest that meaningful amounts of miRNA (miR)-29b and miR-200c were absorbed; plasma concentrations of miR-1 did not change (negative control). The expression of runt-related transcription factor 2 (RUNX2), a known target of miR-29b, increased by 31% in blood mononuclear cells after milk consumption compared with baseline. When milk exosomes were added to cell culture media, mimicking postprandial concentrations of miR-29b and miR-200c, reporter gene activities significantly decreased by 44% and 17%, respectively, compared with vehicle controls in human embryonic kidney 293 cells. When C57BL/6J mice were fed a milk miRNA-depleted diet for 4 wk, plasma miR-29b concentrations were significantly decreased by 61% compared with miRNA-sufficient controls, i.e., endogenous synthesis did not compensate for dietary depletion. Broccoli sprout feeding studies were conducted as a control and elicited no detectable increase in Brassica-specific miRNAs. CONCLUSION We conclude that miRNAs in milk are bioactive food compounds that regulate human genes.
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Affiliation(s)
| | | | - Fang Xie
- Animal Science, University of Nebraska-Lincoln, Lincoln, NE
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