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Mostafalou S, Abdollahi M. The susceptibility of humans to neurodegenerative and neurodevelopmental toxicities caused by organophosphorus pesticides. Arch Toxicol 2023; 97:3037-3060. [PMID: 37787774 DOI: 10.1007/s00204-023-03604-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 09/12/2023] [Indexed: 10/04/2023]
Abstract
The toxicology field is concerned with the impact of organophosphorus (OP) compounds on human health. These compounds have been linked to an increased risk of neurological disorders, including neurodegenerative and neurodevelopmental diseases. This article aims to review studies on the role of OP compounds in developing these neurological disorders and explore how genetic variations can affect susceptibility to the neurotoxicity of these pesticides. Studies have shown that exposure to OP compounds can lead to the development of various neurological disorders, such as Alzheimer's disease (AD), Parkinson's disease (PD), attention deficit hyperactivity disorder (ADHD), autism, intellectual disability, and other developmental neurotoxicities. Apart from inhibiting the cholinesterase enzyme, OP compounds are believed to cause other pathological mechanisms at both the extracellular level (cholinergic, serotonergic, dopaminergic, glutamatergic, and GABAergic synapses) and the intracellular level (oxidative stress, mitochondrial dysfunction, inflammation, autophagy, and apoptosis) that contribute to these disorders. Specific genetic polymorphisms, including PON1, ABCB1, NOS, DRD4, GST, CYP, and APOE, have increased the risk of developing OP-related neurological disorders.
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Affiliation(s)
- Sara Mostafalou
- Department of Pharmacology & Toxicology, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mohammad Abdollahi
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
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2
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Ozkizilcik A, Sharma A, Feng L, Muresanu DF, Tian ZR, Lafuente JV, Buzoianu AD, Nozari A, Wiklund L, Sharma HS. Nanowired delivery of antibodies to tau and neuronal nitric oxide synthase together with cerebrolysin attenuates traumatic brain injury induced exacerbation of brain pathology in Parkinson's disease. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2023; 171:83-121. [PMID: 37783564 DOI: 10.1016/bs.irn.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Concussive head injury (CHI) is one of the major risk factors for developing Parkinson's disease in later life of military personnel affecting lifetime functional and cognitive disturbances. Till date no suitable therapies are available to attenuate CHI or PD induced brain pathology. Thus, further exploration of novel therapeutic agents are highly warranted using nanomedicine in enhancing the quality of life of veterans or service members of US military. Since PD or CHI induces oxidative stress and perturbs neurotrophic factors regulation associated with phosphorylated tau (p-tau) deposition, a possibility exists that nanodelivery of agents that could enhance neurotrophic factors balance and attenuate oxidative stress could be neuroprotective in nature. In this review, nanowired delivery of cerebrolysin-a balanced composition of several neurotrophic factors and active peptide fragments together with monoclonal antibodies to neuronal nitric oxide synthase (nNOS) with p-tau antibodies was examined in PD following CHI in model experiments. Our results suggest that combined administration of nanowired antibodies to nNOS and p-tau together with cerebrolysin significantly attenuated CHI induced exacerbation of PD brain pathology. This combined treatment also has beneficial effects in CHI or PD alone, not reported earlier.
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Affiliation(s)
- Asya Ozkizilcik
- Dept. Biomedical Engineering, University of Arkansas, Fayetteville, AR, United Staes
| | - Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
| | - Lianyuan Feng
- Department of Neurology, Bethune International Peace Hospital, Zhongshan Road (West), Shijiazhuang, Hebei Province, P.R. China
| | - Dafin F Muresanu
- Dept. Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania; ''RoNeuro'' Institute for Neurological Research and Diagnostic, Mircea Eliade Street, Cluj-Napoca, Romania
| | - Z Ryan Tian
- Dept. Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - José Vicente Lafuente
- LaNCE, Dept. Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Anca D Buzoianu
- Department of Clinical Pharmacology and Toxicology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ala Nozari
- Department of Anesthesiology, Boston University, Albany str, Boston MA, United States
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
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de Jager L, Vidigal CB, de Campos BH, Reginato GS, Fernandes LM, Ariza D, Higashi-Mckeown CM, Bertozzi MM, Rasquel de Oliveira FS, Verri Junior WA, Ceravolo GS, Crestani CC, Pinge-Filho P, Martins-Pinge MC. Role of the iNOS isoform in the cardiovascular dysfunctions of male rats with 6-OHDA-induced Parkinsonism. Nitric Oxide 2023; 134-135:49-60. [PMID: 37054808 DOI: 10.1016/j.niox.2023.04.003] [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: 01/30/2023] [Revised: 04/05/2023] [Accepted: 04/10/2023] [Indexed: 04/15/2023]
Abstract
INTRODUCTION Available studies have shown the involvement of nitric oxide (NO) in the processes that lead to neurodegeneration in PD. Also, the use of inhibitors of the inducible isoform of NO-synthase (iNOS) promotes neuroprotection and attenuates dopamine (DA) loss in experimental models of Parkinsonism. In addition, NO also appears to be involved in cardiovascular changes in 6-hydroxydopamine (6-OHDA)-induced Parkinsonism. The current study aimed to evaluate the effects of iNOS inhibition on cardiovascular and autonomic function in animals that were subjected to Parkinsonism by the administration of 6-OHDA. MATERIALS AND METHODS The animals underwent stereotaxic surgery for bilateral microinfusion of the neurotoxin 6-OHDA (6 mg/mL in 0.2% ascorbic acid in sterile saline solution) or vehicle solution for the Sham group. From the day of stereotaxis until the day of femoral artery catheterization, the animals were treated with the iNOS inhibitor, S-methylisothiourea (SMT; 10 mg/kg; i.p.) or saline solution (0.9%; i.p.) for 7 days. The animals were divided into four groups: Sham-Saline, Sham-SMT, 6-OHDA-Saline, and 6-OHDA-SMT. Subsequent analyses were performed on these four groups. After 6 days, they underwent catheterization of the femoral artery, and 24 hours later, mean arterial pressure (MAP) and heart rate (HR) were recorded. Another group of animals (the 6-OHDA and Sham groups) was assessed for aortic vascular reactivity after 7 days of bilateral infusion of 6-OHDA or vehicle, in which cumulative concentration-effect curves (CCEC) were made for phenylephrine (Phenyl), acetylcholine and sodium nitroprusside (NPS). Also, CCEC in the presence of Nw-nitro-arginine-methyl-ester (l-NAME) (10-5 M), SMT (10-6 M), and indomethacin (10-5M) blockers were made. RESULTS The effectiveness of the 6-OHDA lesion was confirmed with the reduction of DA in 6-OHDA animals. However, treatment with SMT could not reverse the loss of DA. Concerning the baseline parameters, SBP and MAP values were lower in 6-OHDA animals compared to their Sham control, with no effect of treatment with SMT. In the analysis of SBP variability, a decrease in variance, the VLFabs component, and the LFabs component were observed in the 6-OHDA groups when compared to their controls, regardless of treatment with SMT. It was also observed that intravenous injections of SMT resulted in an increase in BP and a decrease in HR. However, the response was not different between the Sham and 6-OHDA groups. In vascular function, there was a hyporeactivity to Phenyl in the 6-OHDA group, and when investigating the mechanisms of this hyporeactivity, it was seen that the Rmax to Phenyl increased with incubation with SMT, indicating that iNOS could be involved in the vascular hyporeactivity of animals with Parkinsonism. CONCLUSION Thus, the set of results presented in this study suggests that part of the cardiovascular dysfunction in animals subjected to 6-OHDA Parkinsonism may be peripheral and involve the participation of endothelial iNOS.
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Affiliation(s)
- Lorena de Jager
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Camila Borecki Vidigal
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Blenda Hyedra de Campos
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Gabriela Souza Reginato
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Lorena Maria Fernandes
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Deborah Ariza
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | | | - Mariana Marques Bertozzi
- Departamento de Ciências Patológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | | | | | | | - Carlos César Crestani
- Faculdade de Ciências Farmacêuticas de Araraquara, Departamento de Princípios Ativos Naturais e Toxicologia, Universidade Estadual Paulista, UNESP Araraquara, Brazil
| | - Phileno Pinge-Filho
- Departamento de Ciências Patológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
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Iova OM, Marin GE, Lazar I, Stanescu I, Dogaru G, Nicula CA, Bulboacă AE. Nitric Oxide/Nitric Oxide Synthase System in the Pathogenesis of Neurodegenerative Disorders-An Overview. Antioxidants (Basel) 2023; 12:antiox12030753. [PMID: 36979000 PMCID: PMC10045816 DOI: 10.3390/antiox12030753] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/24/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Nitric oxide, a ubiquitous molecule found throughout the natural world, is a key molecule implicated in many central and benefic molecular pathways and has a well-established role in the function of the central nervous system, as numerous studies have previously shown. Dysregulation of its metabolism, mainly the upregulation of nitric oxide production, has been proposed as a trigger and/or aggravator for many neurological affections. Increasing evidence supports the implication of this molecule in prevalent neurodegenerative diseases, such as Parkinson's disease, Alzheimer's disease, or amyotrophic lateral sclerosis. The mechanisms proposed for its neurotoxicity mainly center around the increased quantities of nitric oxide that are produced in the brain, their cause, and, most importantly, the pathological metabolic cascades created. These cascades lead to the formation of neuronal toxic substances that impair the neurons' function and structure on multiple levels. The purpose of this review is to present the main causes of increased pathological production, as well as the most important pathophysiological mechanisms triggered by nitric oxide, mechanisms that could help explain a part of the complex picture of neurodegenerative diseases and help develop targeted therapies.
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Affiliation(s)
- Olga-Maria Iova
- Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Gheorghe-Eduard Marin
- Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Izabella Lazar
- Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Ioana Stanescu
- Department of Neurology, Iuliu Haţieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Gabriela Dogaru
- Department of Physical Medicine and Rehabilitation, Iuliu Haţieganu University of Medicine and Pharmacy Cluj-Napoca, Viilor Street, No. 46-50, 400347 Cluj-Napoca, Romania
| | - Cristina Ariadna Nicula
- Department of Ophthalmology, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Adriana Elena Bulboacă
- Department of Pathophysiology, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
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Mondal P, Ishigami I, Yeh SR, Wijeratne GB. The Role of Heme Peroxo Oxidants in the Rational Mechanistic Modeling of Nitric Oxide Synthase: Characterization of Key Intermediates and Elucidation of the Mechanism. Angew Chem Int Ed Engl 2022; 61:e202211521. [PMID: 36169890 PMCID: PMC9675724 DOI: 10.1002/anie.202211521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Indexed: 11/08/2022]
Abstract
Mammalian nitric oxide synthase (NOS) mediates the two-step O2 -dependent oxidative degradation of arginine, and has been linked to a medley of disease situations in humans. Nonetheless, its exact mechanism of action still remains unclear. This work presents the first NOS model system where biologically proposed heme superoxo and peroxo intermediates are assessed as active oxidants against oxime substrates. Markedly, heme peroxo intermediates engaged in a bioinspired oxime oxidation reaction pathway, converting oximes to ketones and nitroxyl anions (NO- ). Detailed thermodynamic, kinetic, and mechanistic interrogations all evince a rate-limiting step primarily driven by the nucleophilicity of the heme peroxo moiety. Coherent with other findings, 18 O and 15 N isotope substitution experiments herein suffice compelling evidence toward a detailed mechanism, which draw close parallels to one of the enzymatic proposals. Intriguingly, recent enzymatic studies also lend credence to these findings, and several relevant reaction intermediates have been observed during NOS turnover.
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Affiliation(s)
- Pritam Mondal
- Department of Chemistry and O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35205, USA
| | - Izumi Ishigami
- Department of Physiology and Biophysics, Albert Einstein College of Medicine, The Bronx, NY 10461, USA
| | - Syun-Ru Yeh
- Department of Physiology and Biophysics, Albert Einstein College of Medicine, The Bronx, NY 10461, USA
| | - Gayan B Wijeratne
- Department of Chemistry and O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35205, USA
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Doot RK, Young AJ, Nasrallah IM, Wetherill RR, Siderowf A, Mach RH, Dubroff JG. [ 18F]NOS PET Brain Imaging Suggests Elevated Neuroinflammation in Idiopathic Parkinson's Disease. Cells 2022; 11:3081. [PMID: 36231041 PMCID: PMC9563966 DOI: 10.3390/cells11193081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
Neuroinflammation is implicated as a key pathologic mechanism in many neurodegenerative diseases and is thought to be mediated in large part by microglia, native phagocytic immune cells of the CNS. Abnormal aggregation of the protein α-synuclein after phagocytosis by microglia is one possible neuropathophysiological mechanism driving Parkinson's disease (PD). We conducted a human pilot study to evaluate the feasibility of targeting the inducible isoform of nitric oxide synthase using the [18F]NOS radiotracer to measure neuroinflammation in idiopathic PD. Ten adults consisting of 6 PD patients and 4 healthy controls (HC) underwent one hour of dynamic [18F]NOS positron emission tomography (PET) brain imaging with arterial blood sampling. We observed increased [18F]NOS whole brain distribution volume (VT) in PD patients compared to age-matched healthy controls (p < 0.008) via a 1-tissue compartment (TC) model. The rate constant K1 for transport from blood into tissue did not differ between groups (p = 0.72). These findings suggest elevated oxidative stress, a surrogate marker of inflammation, is present in early-stage idiopathic PD and indicate that [18F]NOS PET imaging is a promising, non-invasive method to measure neuroinflammation.
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Affiliation(s)
- Robert K. Doot
- Division of Nuclear Medicine Imaging and Therapy, Department of Radiology in the Perelman, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Anthony J. Young
- Division of Nuclear Medicine Imaging and Therapy, Department of Radiology in the Perelman, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ilya M. Nasrallah
- Division of Nuclear Medicine Imaging and Therapy, Department of Radiology in the Perelman, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Reagan R. Wetherill
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Andrew Siderowf
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Robert H. Mach
- Division of Nuclear Medicine Imaging and Therapy, Department of Radiology in the Perelman, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jacob G. Dubroff
- Division of Nuclear Medicine Imaging and Therapy, Department of Radiology in the Perelman, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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Behl T, Madaan P, Sehgal A, Singh S, Sharma N, Bhatia S, Al-Harrasi A, Chigurupati S, Alrashdi I, Bungau SG. Elucidating the Neuroprotective Role of PPARs in Parkinson's Disease: A Neoteric and Prospective Target. Int J Mol Sci 2021; 22:10161. [PMID: 34576325 PMCID: PMC8467926 DOI: 10.3390/ijms221810161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/17/2021] [Accepted: 09/19/2021] [Indexed: 12/13/2022] Open
Abstract
One of the utmost frequently emerging neurodegenerative diseases, Parkinson's disease (PD) must be comprehended through the forfeit of dopamine (DA)-generating nerve cells in the substantia nigra pars compacta (SN-PC). The etiology and pathogenesis underlying the emergence of PD is still obscure. However, expanding corroboration encourages the involvement of genetic and environmental factors in the etiology of PD. The destruction of numerous cellular components, namely oxidative stress, ubiquitin-proteasome system (UPS) dysfunction, autophagy-lysosome system dysfunction, neuroinflammation and programmed cell death, and mitochondrial dysfunction partake in the pathogenesis of PD. Present-day pharmacotherapy can alleviate the manifestations, but no therapy has been demonstrated to cease disease progression. Peroxisome proliferator-activated receptors (PPARs) are ligand-directed transcription factors pertaining to the class of nuclear hormone receptors (NHR), and are implicated in the modulation of mitochondrial operation, inflammation, wound healing, redox equilibrium, and metabolism of blood sugar and lipids. Numerous PPAR agonists have been recognized to safeguard nerve cells from oxidative destruction, inflammation, and programmed cell death in PD and other neurodegenerative diseases. Additionally, various investigations suggest that regular administration of PPAR-activating non-steroidal anti-inflammatory drugs (NSAIDs) (ibuprofen, indomethacin), and leukotriene receptor antagonists (montelukast) were related to the de-escalated evolution of neurodegenerative diseases. The present review elucidates the emerging evidence enlightening the neuroprotective outcomes of PPAR agonists in in vivo and in vitro models experiencing PD. Existing articles up to the present were procured through PubMed, MEDLINE, etc., utilizing specific keywords spotlighted in this review. Furthermore, the authors aim to provide insight into the neuroprotective actions of PPAR agonists by outlining the pharmacological mechanism. As a conclusion, PPAR agonists exhibit neuroprotection through modulating the expression of a group of genes implicated in cellular survival pathways, and may be a propitious target in the therapy of incapacitating neurodegenerative diseases like PD.
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Affiliation(s)
- Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Piyush Madaan
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (P.M.); (A.S.); (S.S.); (N.S.)
| | - Saurabh Bhatia
- Natural & Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz 616, Nizwa P.O. Box 33, Oman; (S.B.); (A.A.-H.)
- School of Health Science, University of Petroleum and Energy Studies, Dehradun 248007, India
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz 616, Nizwa P.O. Box 33, Oman; (S.B.); (A.A.-H.)
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah 52571, Saudi Arabia;
| | - Ibrahim Alrashdi
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne NE1 7RU, UK;
| | - Simona Gabriela Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410073 Oradea, Romania
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Osman KA, Ezz El-Din EM, Ahmed NS, El-Seedy AS. Effect of N-acetylcysteine on attenuation of chlropyrifos and its methyl analogue toxicity in male rats. Toxicology 2021; 461:152904. [PMID: 34425170 DOI: 10.1016/j.tox.2021.152904] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/16/2021] [Accepted: 08/19/2021] [Indexed: 02/01/2023]
Abstract
The attenuating effect of 150 mg/kg of N-acetylcysteine (NAC) against the oral administration of 7.88 and 202.07 mg/kg/day for 14 days of either chlropyrifos-ethyl (CPE-E) or chlropyrifos-methyl (CPF-M), respectively, in male rat was investigated using biochemical and genetic markers. Biomarkers such as acetylcholinesterase (AChE), butyrylcholinesterase (BuChE), paraoxonase (PON), adenosine 5'-triphosphatase (ATP-ase), glutathione-S-transferase (GST), catalase (CAT), glutathione reduced (GSH) in serum showed a significant decline in their levels, while calcium (Ca+2), cytochrome C reduction (CYC-R), lipid peroxidation (LPO), nitric oxide (NO) levels showed a significant increase in serum of treated rats. Regarding the genotoxic parameters, when rats are treated either with CPE-E or CPF-M, liver DNA, chromosomal aberration (CA), and micronucleated polychromatic erythrocytes (MnPCE) significantly increased, while the mitotic index (MI) and polychromatic erythrocytes (PCE)/ normochromatic erythrocytes (NCE) ratio were significantly decreased. However, the administration of NAC following the intoxication of CPF-E or CPF-M attenuated the tested biochemical and genotoxic markers. It can be concluded that NAC can be used to ameliorate the toxicity of certain organophosphorus compounds such as CPF-E and CPF-M.
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Affiliation(s)
- Khaled A Osman
- Department of Pesticide Chemistry and Technology, Faculty of Agriculture, Alexandria University, Egypt.
| | - Eslam M Ezz El-Din
- Department of Pesticide Chemistry and Technology, Faculty of Agriculture, Alexandria University, Egypt
| | - Nabila S Ahmed
- Department of Pesticide Chemistry and Technology, Faculty of Agriculture, Alexandria University, Egypt
| | - Ayman S El-Seedy
- Laboratory of Cellular and Molecular Genetics, Department of Genetics, Faculty of Agriculture, Alexandria University, P.O Box 21545, Alexandria, Egypt
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Balakrishnan R, Azam S, Cho DY, Su-Kim I, Choi DK. Natural Phytochemicals as Novel Therapeutic Strategies to Prevent and Treat Parkinson's Disease: Current Knowledge and Future Perspectives. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6680935. [PMID: 34122727 PMCID: PMC8169248 DOI: 10.1155/2021/6680935] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/14/2021] [Accepted: 04/26/2021] [Indexed: 12/12/2022]
Abstract
Parkinson's disease (PD) is the second-most common neurodegenerative chronic disease affecting both cognitive performance and motor functions in aged people. Yet despite the prevalence of this disease, the current therapeutic options for the management of PD can only alleviate motor symptoms. Research has explored novel substances for naturally derived antioxidant phytochemicals with potential therapeutic benefits for PD patients through their neuroprotective mechanism, targeting oxidative stress, neuroinflammation, abnormal protein accumulation, mitochondrial dysfunction, endoplasmic reticulum stress, neurotrophic factor deficit, and apoptosis. The aim of the present study is to perform a comprehensive evaluation of naturally derived antioxidant phytochemicals with neuroprotective or therapeutic activities in PD, focusing on their neuropharmacological mechanisms, including modulation of antioxidant and anti-inflammatory activity, growth factor induction, neurotransmitter activity, direct regulation of mitochondrial apoptotic machinery, prevention of protein aggregation via modulation of protein folding, modification of cell signaling pathways, enhanced systemic immunity, autophagy, and proteasome activity. In addition, we provide data showing the relationship between nuclear factor E2-related factor 2 (Nrf2) and PD is supported by studies demonstrating that antiparkinsonian phytochemicals can activate the Nrf2/antioxidant response element (ARE) signaling pathway and Nrf2-dependent protein expression, preventing cellular oxidative damage and PD. Furthermore, we explore several experimental models that evaluated the potential neuroprotective efficacy of antioxidant phytochemical derivatives for their inhibitory effects on oxidative stress and neuroinflammation in the brain. Finally, we highlight recent developments in the nanodelivery of antioxidant phytochemicals and its neuroprotective application against pathological conditions associated with oxidative stress. In conclusion, naturally derived antioxidant phytochemicals can be considered as future pharmaceutical drug candidates to potentially alleviate symptoms or slow the progression of PD. However, further well-designed clinical studies are required to evaluate the protective and therapeutic benefits of phytochemicals as promising drugs in the management of PD.
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Affiliation(s)
- Rengasamy Balakrishnan
- Department of Applied Life Science, Graduate School, BK21 Program, Konkuk University, Chungju 27478, Republic of Korea
- Department of Biotechnology, College of Biomedical and Health Science, Research Institute of Inflammatory Disease (RID), Konkuk University, Chungju 27478, Republic of Korea
| | - Shofiul Azam
- Department of Applied Life Science, Graduate School, BK21 Program, Konkuk University, Chungju 27478, Republic of Korea
| | - Duk-Yeon Cho
- Department of Applied Life Science, Graduate School, BK21 Program, Konkuk University, Chungju 27478, Republic of Korea
| | - In Su-Kim
- Department of Biotechnology, College of Biomedical and Health Science, Research Institute of Inflammatory Disease (RID), Konkuk University, Chungju 27478, Republic of Korea
| | - Dong-Kug Choi
- Department of Applied Life Science, Graduate School, BK21 Program, Konkuk University, Chungju 27478, Republic of Korea
- Department of Biotechnology, College of Biomedical and Health Science, Research Institute of Inflammatory Disease (RID), Konkuk University, Chungju 27478, Republic of Korea
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Ling PH, Zang XN, Qian CH, Gao F. A metal-organic framework with multienzyme activity as a biosensing platform for real-time electrochemical detection of nitric oxide and hydrogen peroxide. Analyst 2021; 146:2609-2616. [PMID: 33720222 DOI: 10.1039/d1an00142f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Metal-Organic Framework (MOFs) with large surface area, exposed active site, excellent catalytic performance and high chemical stability has been used as an artificial enzyme and designed for nonenzymatic electrochemical sensors. Here, a strategy of using an enhanced electrochemical sensing platform for the detection of nitic oxide (NO) and hydrogen peroxide (H2O2) was designed via a nano-metalloporphyrinic metal-organic framework (NporMOF(Fe)) as an electrode material. By taking advantage of the small size, high surface area and exposed Fe active site, the obtained NporMOF(Fe) displays excellent electrocatalytic activity toward NO and H2O2. The NporMOF(Fe) modified electrode shows high sensing ability toward the in situ generated NO in NO2- containing phosphate buffer (PB) solution with a wide linear detection range of 5 μM to 200 μM and a very low detection limit of 1.3 μM. Moreover, NporMOF(Fe) exhibits high electrocatalytic activity toward the reduction of H2O2 and the practical detection of H2O2 released from HeLa cells. Furthermore, the NporMOF(Fe) modified electrode shows excellent selectivity toward the detection of NO and H2O2 in the presence of other physiologically important analytes. This method shows excellent biosensing performance, implying the universal applicability of MOFs-based artificial nanozymes for biosensors and the potential application for third generation biosensors.
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Affiliation(s)
- Ping-Hua Ling
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
| | - Xiao-Na Zang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
| | - Cai-Hua Qian
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
| | - Feng Gao
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
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11
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Oxidative Stress in Parkinson's Disease: Potential Benefits of Antioxidant Supplementation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:2360872. [PMID: 33101584 PMCID: PMC7576349 DOI: 10.1155/2020/2360872] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 09/06/2020] [Accepted: 09/21/2020] [Indexed: 12/11/2022]
Abstract
Parkinson's disease (PD) occurs in approximately 1% of the population over 65 years of age and has become increasingly more common with advances in age. The number of individuals older than 60 years has been increasing in modern societies, as well as life expectancy in developing countries; therefore, PD may pose an impact on the economic, social, and health structures of these countries. Oxidative stress is highlighted as an important factor in the genesis of PD, involving several enzymes and signaling molecules in the underlying mechanisms of the disease. This review presents updated data on the involvement of oxidative stress in the disease, as well as the use of antioxidant supplements in its therapy.
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12
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Aryal S, Skinner T, Bridges B, Weber JT. The Pathology of Parkinson's Disease and Potential Benefit of Dietary Polyphenols. Molecules 2020; 25:E4382. [PMID: 32987656 PMCID: PMC7582699 DOI: 10.3390/molecules25194382] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/15/2020] [Accepted: 09/21/2020] [Indexed: 12/17/2022] Open
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder that is characterized by a loss of dopaminergic neurons, leading to bradykinesia, rigidity, tremor at rest, and postural instability, as well as non-motor symptoms such as olfactory impairment, pain, autonomic dysfunction, impaired sleep, fatigue, and behavioral changes. The pathogenesis of PD is believed to involve oxidative stress, disruption to mitochondria, alterations to the protein α-synuclein, and neuroinflammatory processes. There is currently no cure for the disease. Polyphenols are secondary metabolites of plants, which have shown benefit in several experimental models of PD. Intake of polyphenols through diet is also associated with lower PD risk in humans. In this review, we provide an overview of the pathology of PD and the data supporting the potential neuroprotective capacity of increased polyphenols in the diet. Evidence suggests that the intake of dietary polyphenols may inhibit neurodegeneration and the progression of PD. Polyphenols appear to have a positive effect on the gut microbiome, which may decrease inflammation that contributes to the disease. Therefore, a diet rich in polyphenols may decrease the symptoms and increase quality of life in PD patients.
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Affiliation(s)
| | | | | | - John T. Weber
- School of Pharmacy, Memorial University, St. John’s, NL A1B 3V6, Canada; (S.A.); (T.S.); (B.B.)
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13
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Singh S. Updates on Versatile Role of Putative Gasotransmitter Nitric Oxide: Culprit in Neurodegenerative Disease Pathology. ACS Chem Neurosci 2020; 11:2407-2415. [PMID: 32564594 DOI: 10.1021/acschemneuro.0c00230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Nitric oxide (NO) is a versatile gasotransmitter that contributes in a range of physiological and pathological mechanims depending on its cellular levels. An appropriate concentration of NO is essentially required for cellular physiology; however, its increased level triggers pathological mechanisms like altered cellular redox regulation, functional impairment of mitochondrion, and modifications in cellular proteins and DNA. Its increased levels also exhibit post-translational modifications in protein through S-nitrosylation of their thiol amino acids, which critically affect the cellular physiology. Along with such modifications, NO could also nitrosylate the endoplasmic reticulum (ER)-membrane located sensors of ER stress, which subsequently affect the cellular protein degradation capacity and lead to aggregation of misfolded/unfolded proteins. Since protein aggregation is one of the pathological hallmarks of neurodegenerative disease, NO should be taken into account during development of disease therapies. In this Review, we shed light on the diverse role of NO in both cellular physiology and pathology and discussed its involvement in various pathological events in the context of neurodegenerative diseases.
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Affiliation(s)
- Sarika Singh
- Department of Neurosciences and Ageing Biology and Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
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14
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Robust Dopaminergic Differentiation and Enhanced LPS-Induced Neuroinflammatory Response in Serum-Deprived Human SH-SY5Y Cells: Implication for Parkinson's Disease. J Mol Neurosci 2020; 71:565-582. [PMID: 32789724 DOI: 10.1007/s12031-020-01678-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/03/2020] [Indexed: 01/07/2023]
Abstract
Parkinson's disease (PD) is a chronic neurodegenerative condition characterized by motor symptoms such as bradykinesia, resting tremor, and rigidity. PD diagnosis is based on medical history, review of signs, symptoms, neurological and physical examinations. Unfortunately, by the time the disease is diagnosed, dopamine (DA) neuronal loss is often extended, thereby resulting in ineffective therapies. Recent evidence suggests that neuroinflammation may be pivotal during PD onset and progression. However, suitable cellular models and biomarkers to detect early signs of neuroinflammation are still missing. In this study, we developed a well-differentiated DAergic neuronal cell line where we triggered a neuroinflammatory response to assess the temporal expression of the tissue- and urokinase plasminogen activators (tPA and uPA) and their endogenous inhibitor (PAI-1) along with that of pro-inflammatory mediators and the neuronal marker nNOS. Human neuroblastoma cells SH-SY5Y were differentiated into DAergic neuronal-like cells using a combination of 12-O-tetradecanoylphorbol-13-acetate (TPA) and serum depletion. Terminally-differentiated neurons were then exposed to lipopolysaccharide (LPS) for short (up to 24 h) or long term (up to 10 days) to mimic acute or chronic inflammation. Results demonstrated that uPA protein expression was stably upregulated during chronic inflammation, whereas the expression of nNOS protein better reflected the cellular response to acute inflammation. Additional studies revealed that the temporal induction of uPA was associated with increased AKT phosphorylation, but did not seem to involve cAMP-responsive element-binding protein (CREB) activation, nor the mitogen-activated protein kinase (MAPK) pathway. In conclusion, our in vitro data suggests that nNOS and uPA may serve as viable candidate biomarkers of acute and chronic neuroinflammation.
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15
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Neuroprotective potential of chrysin in Parkinson's disease: Molecular mechanisms and clinical implications. Neurochem Int 2020; 132:104612. [DOI: 10.1016/j.neuint.2019.104612] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/24/2019] [Accepted: 11/25/2019] [Indexed: 01/09/2023]
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16
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Oxidative and histopathological alterations after sub-acute exposure of diisopropyl phosphorofluoridate in mice: Beneficial effect of N‑acetylcysteine. Life Sci 2019; 228:98-111. [PMID: 31051153 DOI: 10.1016/j.lfs.2019.04.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/25/2019] [Accepted: 04/29/2019] [Indexed: 11/21/2022]
Abstract
AIMS Protective efficacy of N‑acetylcysteine (NAC) was assessed against sub-acute diisopropyl phosphorofluoridate (DFP) poisoning in mice. MAIN METHODS Mice were allocated into nine groups of six each: vehicle control; DFP (0.125 LD50 ≈ 0.483 mg/kg bwt, s.c.); DFP + Atropine (ATR, 10 mg/kg bwt, i.p., 0 min); DFP + Pralidoxime (2-PAM, 30 mg/kg bwt, i.m., 0 min); DFP + NAC (150 mg/kg bwt, i.p., -60 min); DFP + ATR + NAC; DFP + 2-PAM + NAC; DFP + ATR + 2-PAM; and DFP + ATR + 2-PAM + NAC. Animals received various treatments for 21 d daily. Plasma butyrylcholinesterase (BChE) was measured after 7, 14 and 21 d of exposure. Brain acetylcholinesterase (AChE) and reduced glutathione (GSH), malondialdehyde (MDA), glutathione peroxidase (GPx), glutathione reductase (GR), catalase (CAT), and superoxide dismutase (SOD) were measured (brain, liver and kidney) after 21 d of exposure. Histopathology, immunohistochemistry, and Western blot for inducible nitric oxide synthase (iNOS) and c-fos were also performed. KEY FINDINGS DFP significantly reduced BChE and AChE levels. Diminished GSH, CAT, SOD (brain and liver), GPx, GR, and elevated MDA (Brain) levels were also observed. DFP caused notable histopathology (brain, liver and kidney) and over expression of iNOS, and c-fos proteins (brain). NAC enhanced the protective efficacy of ATR and 2-PAM in most parameters, without any appreciable protection in iNOS and c-fos expression. SIGNIFICANCE NAC as an adjunct with ATR and 2-PAM, exhibited marked beneficial effects against sub-acute DFP poisoning, indicating its possible implications in the management of OP poisoning.
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17
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Del Fabbro L, Rossito Goes A, Jesse CR, de Gomes MG, Cattelan Souza L, Lobo Ladd FV, Lobo Ladd AAB, Nunes Arantes RV, Reis Simionato A, Oliveira MS, Furian AF, Boeira SP. Chrysin protects against behavioral, cognitive and neurochemical alterations in a 6-hydroxydopamine model of Parkinson's disease. Neurosci Lett 2019; 706:158-163. [PMID: 31121284 DOI: 10.1016/j.neulet.2019.05.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 05/15/2019] [Accepted: 05/18/2019] [Indexed: 11/18/2022]
Abstract
Parkinson's disease (PD) is an age-related neurodegenerative disorder that severely affects quality of life of patients and their families. The flavonoid chrysin (5,7-dihydroxylflavone) is a naturally occurring flavone with several pharmacological activities, including anti-inflammatory and anti-oxidative. We investigated the effects of a 28-day chrysin treatment (10 mg/kg/day, i.g.) on a model of PD induced by 6-OHDA in aged (20-month old) mice. We found a protective effect of chrysin on behavioral and cognitive alterations (rotational behavior, passive avoidance and Barnes maze tests), nitric oxide synthesis (NOx), lipid peroxidation (HNE), glutathione levels (GSH), reactive species levels (RS), neuroinflammation (interleukin-1 beta - IL-1β and tumor necrosis factor alpha - TNF-α), Na+, K+-ATPase and nicotinamide adenine dinucleotide phosphate oxidase activity (NADPH oxidase) activities. In addition, chrysin protected against changes in striatal dopamine (DA), 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) levels. In conclusion, chrysin improved several behavioral, cognitive and neurochemical parameters in a relevant preclinical model of PD in aged mice.
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Affiliation(s)
- Lucian Del Fabbro
- Laboratory of Pharmacological and Toxicological evaluations applied to Bioactive Molecules (Laftambio Pampa), Federal University of Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil
| | - André Rossito Goes
- Laboratory of Pharmacological and Toxicological evaluations applied to Bioactive Molecules (Laftambio Pampa), Federal University of Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil
| | - Cristiano Ricardo Jesse
- Laboratory of Pharmacological and Toxicological evaluations applied to Bioactive Molecules (Laftambio Pampa), Federal University of Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil
| | - Marcelo Gomes de Gomes
- Laboratory of Pharmacological and Toxicological evaluations applied to Bioactive Molecules (Laftambio Pampa), Federal University of Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil; Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa Campus, Uruguaiana, RS, Brazil
| | - Leandro Cattelan Souza
- Laboratory of Pharmacological and Toxicological evaluations applied to Bioactive Molecules (Laftambio Pampa), Federal University of Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil
| | - Fernando V Lobo Ladd
- Department of Morphology, Laboratory of Neuroanatomy, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Aliny A B Lobo Ladd
- Laboratory of Stochastic Stereology and Chemical Anatomy, Department of Surgery, College of Veterinary Medicine and Animal Science, University of São Paulo, SP, Brazil
| | | | - Astor Reis Simionato
- Laboratory of Optimization of Sports Performance Human (LaBOEH), São Paulo State University, Bauru, SP, Brazil
| | - Mauro Schneider Oliveira
- Laboratory of Neurotoxicity and Psychopharmacology (LABNEURO), Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Ana Flavia Furian
- Laboratory of Pharmacology, Mycotoxins and Toxicology (LAFARMT), Federal University of Santa Maria, Santa Maria, RS, Brazil.
| | - Silvana Peterini Boeira
- Laboratory of Pharmacological and Toxicological evaluations applied to Bioactive Molecules (Laftambio Pampa), Federal University of Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil
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18
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Titze-de-Almeida R, Titze-de-Almeida SS, Ferreira NR, Fontanari C, Faccioli LH, Del Bel E. Suppressing nNOS Enzyme by Small-Interfering RNAs Protects SH-SY5Y Cells and Nigral Dopaminergic Neurons from 6-OHDA Injury. Neurotox Res 2019; 36:117-131. [PMID: 31041676 DOI: 10.1007/s12640-019-00043-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/27/2019] [Accepted: 04/04/2019] [Indexed: 01/11/2023]
Abstract
Nitric oxide (NO) has chemical properties that make it uniquely suitable as an intracellular and intercellular messenger. NO is produced by the activity of the enzyme nitric oxide synthases (NOS). There is substantial and mounting evidence that slight abnormalities of NO may underlie a wide range of neurodegenerative disorders. NO participates of the oxidative stress and inflammatory processes that contribute to the progressive dopaminergic loss in Parkinson's disease (PD). The present study aimed to evaluate in vitro and in vivo the effects of neuronal NOS-targeted siRNAs on the injury caused in dopaminergic neurons by the toxin 6-hidroxydopamine (6-OHDA). First, we confirmed (immunohistochemistry and Western blotting) that SH-SY5Y cell lineage expresses the dopaminergic marker tyrosine hydroxylase (TH) and the protein under analysis, neuronal NOS (nNOS). We designed four siRNAs by using the BIOPREDsi algorithm choosing the one providing the highest knockdown of nNOS mRNA in SH-SY5Y cells, as determined by qPCR. siRNA 4400 carried by liposomes was internalized into cells, caused a concentration-dependent knockdown on nNOS, and reduced the toxicity induced by 6-OHDA (p < 0.05). Regarding in vivo action in the dopamine-depleted animals, intra-striatal injection of siRNA 4400 at 4 days prior 6-OHDA produced a decrease in the rotational behavior induced by apomorphine. Finally, siRNA 4400 mitigated the loss of TH(+) cells in substantia nigra dorsal and ventral part. In conclusion, the suppression of nNOS enzyme by targeted siRNAs modified the progressive death of dopaminergic cells induced by 6-OHDA and merits further pre-clinical investigations as a neuroprotective approach for PD.
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Affiliation(s)
- Ricardo Titze-de-Almeida
- Technology for Gene Therapy Laboratory, Central Institute of Sciences, University of Brasília-FAV, Brasília, DF, 70910-900, Brazil
| | - Simoneide S Titze-de-Almeida
- Technology for Gene Therapy Laboratory, Central Institute of Sciences, University of Brasília-FAV, Brasília, DF, 70910-900, Brazil
| | - Nadia Rubia Ferreira
- Department of Basic and Oral Biology, Dental School, University of São Paulo (USP), Ribeirão Preto, SP, 14040-904, Brazil
| | - Caroline Fontanari
- Department of Clinical Analyses, Toxicology and Bromatology, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-903, Brazil
| | - Lúcia Helena Faccioli
- Department of Clinical Analyses, Toxicology and Bromatology, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-903, Brazil
| | - Elaine Del Bel
- Department of Basic and Oral Biology, Dental School, University of São Paulo (USP), Ribeirão Preto, SP, 14040-904, Brazil.
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo (USP), São Paulo, SP, Brazil.
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19
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Perinatal exposure to nonylphenol induces microglia-mediated nitric oxide and prostaglandin E2 production in offspring hippocampus. Toxicol Lett 2019; 301:114-124. [DOI: 10.1016/j.toxlet.2018.11.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/14/2018] [Accepted: 11/22/2018] [Indexed: 12/13/2022]
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20
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Dou B, Li J, Jiang B, Yuan R, Xiang Y. DNA-Templated In Situ Synthesis of Highly Dispersed AuNPs on Nitrogen-Doped Graphene for Real-Time Electrochemical Monitoring of Nitric Oxide Released from Live Cancer Cells. Anal Chem 2019; 91:2273-2278. [PMID: 30584756 DOI: 10.1021/acs.analchem.8b04863] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Dispersion promotion of nanomaterials can significantly enhance their catalytic activities. With a new DNA-templated in situ synthesis approach, we report the preparation of highly dispersed AuNPs on nitrogen-doped graphene sheets (NGS) with significantly improved electrocatalytic ability for the monitoring of nitric oxide (NO) released from live cancer cells. The template DNA is adsorbed on NGS via π-π stacking, and the Au precursor chelates along the DNA lattice through dative bonding. Subsequent introduction of the reducing agent leads to in situ nucleation and growth of AuNPs, eventually resulting in highly dispersed AuNPs on NGS. Because of the synergistic enhancement of the catalytic activities of AuNPs and NGS, as well as the high dispersion of AuNPs, such a nanocomposite shows significant electro-oxidation capability toward NO, leading to a highly sensitive subnanomolar detection limit for NO in vitro. More importantly, the laminin glycoproteins can be readily adsorbed on the surface of the nanomaterials to render excellent biocompatibility for the adhesion and proliferation of live cells, enabling the biointerface for electrochemical detection of NO released from live cancer cells.
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Affiliation(s)
- Baoting Dou
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , PR China
| | - Jin Li
- School of Chemistry and Chemical Engineering , Chongqing University of Technology , Chongqing 400054 , PR China
| | - Bingying Jiang
- School of Chemistry and Chemical Engineering , Chongqing University of Technology , Chongqing 400054 , PR China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , PR China
| | - Yun Xiang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , PR China
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21
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Saini R, Singh S. Inducible nitric oxide synthase: An asset to neutrophils. J Leukoc Biol 2018; 105:49-61. [DOI: 10.1002/jlb.4ru0418-161r] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 08/25/2018] [Accepted: 08/26/2018] [Indexed: 12/12/2022] Open
Affiliation(s)
- Rashmi Saini
- Department of ZoologyGargi CollegeUniversity of Delhi Delhi 11049 India
| | - Sarika Singh
- Toxicology & Experimental MedicineCSIR‐Central Drug Research Institute Lucknow 226031 India
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22
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Hydroxysafflor Yellow A Attenuates Lipopolysaccharide-Induced Neurotoxicity and Neuroinflammation in Primary Mesencephalic Cultures. Molecules 2018; 23:molecules23051210. [PMID: 29783643 PMCID: PMC6100575 DOI: 10.3390/molecules23051210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 11/17/2022] Open
Abstract
Lipopolysaccharide (LPS)-induced neuroinflammation triggers and accelerates the pathogenesis of Parkinson's disease (PD). Carthamus tinctorius L., a traditional Chinese medicine, has been widely used for the treatment of cerebrovascular disease. Hydroxysafflor Yellow A (HSYA) is an active component of C. tinctorius. The purpose of this study was to investigate whether HSYA could attenuate LPS-induced neurotoxicity and neuroinflammation in primary mesencephalic cultures. Cell viability was measured by MTT and LDH assays. The number of tyrosine hydroxylase (TH) positive neuron was observed by immunohistochemistry. NF-κB p65 and iNOS expressions were evaluated with western blotting method. Pro-inflammatory cytokines including IL-1β and TNF-α were determined by ELISA kits. Nitric oxide (NO) content in the culture medium was assayed. The results showed that HSYA treatment significantly attenuated the LPS-induced dopaminergic neurons damage. HSYA partially inhibited the expressions of NF-κB p65 and iNOS. Furthermore, HSYA decreased the content of IL-1β, TNF-α and NO in the supernatants. Taken together, these results suggest that HSYA exerts protective effects on LPS-induced neurotoxicity in dopaminergic neurons and the mechanisms may be associated with the inhibition of inflammatory response.
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23
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Kim TH, Lee D, Choi JW. Live cell biosensing platforms using graphene-based hybrid nanomaterials. Biosens Bioelectron 2017; 94:485-499. [DOI: 10.1016/j.bios.2017.03.032] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/01/2017] [Accepted: 03/14/2017] [Indexed: 12/12/2022]
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24
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The Central Role of Biometals Maintains Oxidative Balance in the Context of Metabolic and Neurodegenerative Disorders. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:8210734. [PMID: 28751933 PMCID: PMC5511683 DOI: 10.1155/2017/8210734] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/19/2017] [Accepted: 05/28/2017] [Indexed: 12/13/2022]
Abstract
Traditionally, oxidative stress as a biological aspect is defined as an imbalance between the free radical generation and antioxidant capacity of living systems. The intracellular imbalance of ions, disturbance in membrane dynamics, hypoxic conditions, and dysregulation of gene expression are all molecular pathogenic mechanisms closely associated with oxidative stress and underpin systemic changes in the body. These also include aspects such as chronic immune system activation, the impairment of cellular structure renewal, and alterations in the character of the endocrine secretion of diverse tissues. All of these mentioned features are crucial for the correct function of the various tissue types in the body. In the present review, we summarize current knowledge about the common roots of metabolic and neurodegenerative disorders induced by oxidative stress. We discuss these common roots with regard to the way that (1) the respective metal ions are involved in the maintenance of oxidative balance and (2) the metabolic and signaling disturbances of the most important biometals, such as Mg2+, Zn2+, Se2+, Fe2+, or Cu2+, can be considered as the central connection point between the pathogenesis of both types of disorders and oxidative stress.
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25
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Olmos-Ortiz LM, Barajas-Mendiola MA, Barrios-Rodiles M, Castellano LE, Arias-Negrete S, Avila EE, Cuéllar-Mata P. Trichomonas vaginalisexosome-like vesicles modify the cytokine profile and reduce inflammation in parasite-infected mice. Parasite Immunol 2017; 39. [DOI: 10.1111/pim.12426] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 03/17/2017] [Indexed: 12/27/2022]
Affiliation(s)
- L. M. Olmos-Ortiz
- Departamento de Biología; Universidad de Guanajuato; Guanajuato Mexico
| | | | - M. Barrios-Rodiles
- Center for Systems Biology; Lunenfeld-Tanenbaum Research Institute; Mount Sinai Hospital; Toronto ON Canada
| | - L. E. Castellano
- Departamento de Ingenierías Química, Electrónica y Biomédica; Universidad de Guanajuato; León México
| | - S. Arias-Negrete
- Departamento de Biología; Universidad de Guanajuato; Guanajuato Mexico
| | - E. E. Avila
- Departamento de Biología; Universidad de Guanajuato; Guanajuato Mexico
| | - P. Cuéllar-Mata
- Departamento de Biología; Universidad de Guanajuato; Guanajuato Mexico
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26
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Ritz BR, Paul KC, Bronstein JM. Of Pesticides and Men: a California Story of Genes and Environment in Parkinson's Disease. Curr Environ Health Rep 2016; 3:40-52. [PMID: 26857251 DOI: 10.1007/s40572-016-0083-2] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
At the start of the postgenomics era, most Parkinson's disease (PD) etiology cannot be explained by our knowledge of genetic or environmental factors alone. For more than a decade, we have explored gene-environment (GxE) interactions possibly responsible for the heterogeneity of genetic as well as environmental results across populations. We developed three pesticide exposure measures (ambient due to agricultural applications, home and garden use, and occupational use) in a large population-based case-control study of incident PD in central California. Specifically, we assessed interactions with genes responsible for pesticide metabolism (PON1); transport across the blood-brain barrier (ABCB1); pesticides interfering with or depending on dopamine transporter activity (DAT/SLC6A3) and dopamine metabolism (ALDH2); impacting mitochondrial function via oxidative/nitrosative stress (NOS1) or proteasome inhibition (SKP1); and contributing to immune dysregulation (HLA-DR). These studies established some specificity for pesticides' neurodegenerative actions, contributed biologic plausibility to epidemiologic findings, and identified genetically susceptible populations.
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Affiliation(s)
- Beate R Ritz
- Department of Epidemiology, Fielding School of Public Health, UCLA, 650 Charles Young Dr South, Los Angeles, CA, 90095-1772, USA. .,Center for Occupational and Environmental Health, UCLA, Los Angeles, CA, USA. .,Department of Neurology, Geffen School of Medicine, UCLA, 710 Westwood Plaza, Los Angeles, CA, 90095, USA.
| | - Kimberly C Paul
- Department of Epidemiology, Fielding School of Public Health, UCLA, 650 Charles Young Dr South, Los Angeles, CA, 90095-1772, USA
| | - Jeff M Bronstein
- Department of Neurology, Geffen School of Medicine, UCLA, 710 Westwood Plaza, Los Angeles, CA, 90095, USA
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Hosseini M, Rajaei Z, Alaei H, Tajadini M. The Effects of Crocin on 6-OHDA-Induced Oxidative/Nitrosative Damage and Motor Behaviour in Hemiparkinsonian Rats. Malays J Med Sci 2016; 23:35-43. [PMID: 28090177 DOI: 10.21315/mjms2016.23.6.4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Accepted: 08/07/2016] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND Crocin is considered to prevent oxidative stress-related diseases, such as ischemia and Alzheimer's. The aim of the present investigation was to evaluate the effects of crocin on motor behaviour and 6-OHDA-induced oxidative/nitrosative damage to the striatum in an experimental model of Parkinson's disease. METHODS Left medial forebrain bundle was lesioned by microinjection of 6-OHDA (16μg in 0.2% ascorbate-saline). Crocin (30 and 60 mg/kg) was injected intraperitoneally three days before surgery until six weeks. Rotational behaviour and biochemical analysis were used to evaluate the effect of crocin in a unilateral 6-OHDA-induced model of Parkinson's disease. RESULTS The contralateral rotations induced by apomorphine in 6-OHDA lesioned group were highly significant (P < 0.001) as compared to the sham group. Moreover, chronic administration of crocin at doses of 30 and 60 mg/kg over six weeks did not change the rotations. The TBARS and nitrite levels in the striatum were also significantly (P < 0.05) increased in lesioned group. Treatment with crocin at a dose of 60 mg/kg significantly decreased the nitrite levels (P < 0.05) in the striatum. CONCLUSION Crocin at a dose of 60 mg/kg could be effective in preventing the nitrosative damage in the striatum. Further investigations using higher doses of crocin is suggested to get the full neuroprotective effects of crocin in Parkinson's disease.
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Affiliation(s)
- Maryam Hosseini
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ziba Rajaei
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Neurocognitive Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hojjatallah Alaei
- Isfahan Neurosciences Research Center, Alzahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
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Voltammetric determination of nitric oxide using a glassy carbon electrode modified with a nanohybrid consisting of myoglobin, gold nanorods, and reduced graphene oxide. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1922-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Del-Bel E, Bortolanza M, Dos-Santos-Pereira M, Bariotto K, Raisman-Vozari R. l-DOPA-induced dyskinesia in Parkinson's disease: Are neuroinflammation and astrocytes key elements? Synapse 2016; 70:479-500. [DOI: 10.1002/syn.21941] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/06/2016] [Accepted: 09/06/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Elaine Del-Bel
- Department of MFPB-Physiology; FORP, Campus USP, University of São Paulo; Av. Café, s/no Ribeirão Preto SP 14040-904 Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); São Paulo Brazil
- Department of Physiology; FMRP; São Paulo Brazil
- Department of Neurology and Behavioral Neuroscience; FMRP, Campus USP, University of São Paulo; Av. Bandeirantes 13400 Ribeirão Preto SP 14049-900 Brazil
| | - Mariza Bortolanza
- Department of MFPB-Physiology; FORP, Campus USP, University of São Paulo; Av. Café, s/no Ribeirão Preto SP 14040-904 Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); São Paulo Brazil
| | - Maurício Dos-Santos-Pereira
- Department of MFPB-Physiology; FORP, Campus USP, University of São Paulo; Av. Café, s/no Ribeirão Preto SP 14040-904 Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); São Paulo Brazil
- Department of Physiology; FMRP; São Paulo Brazil
| | - Keila Bariotto
- Department of MFPB-Physiology; FORP, Campus USP, University of São Paulo; Av. Café, s/no Ribeirão Preto SP 14040-904 Brazil
- Center for Interdisciplinary Research on Applied Neurosciences (NAPNA); São Paulo Brazil
- Department of Neurology and Behavioral Neuroscience; FMRP, Campus USP, University of São Paulo; Av. Bandeirantes 13400 Ribeirão Preto SP 14049-900 Brazil
| | - Rita Raisman-Vozari
- INSERM UMR 1127, CNRS UMR 7225, UPMC; Thérapeutique Expérimentale de la Neurodégénérescence, Hôpital de la Salpetrière-ICM (Institut du cerveau et de la moelle épinière); Paris France
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Çubukçu HC, Yurtdaş M, Durak ZE, Aytaç B, Güneş HN, Çokal BG, Yoldaş TK, Durak İ. Oxidative and nitrosative stress in serum of patients with Parkinson's disease. Neurol Sci 2016; 37:1793-1798. [PMID: 27423450 DOI: 10.1007/s10072-016-2663-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 07/05/2016] [Indexed: 12/21/2022]
Abstract
Parkinson's disease (PD) is one of the common neurodegenerative disorders. Oxidative stress is considered as a contributing factor to the development of PD. The present study aims to investigate serum oxidative stress status in patients with PD. Oxidative stress was assessed by measuring serum nitric oxide levels, lipid hydroperoxide concentrations, and nitric oxide synthase activity. In addition, total serum antioxidant capacity (TAC) was evaluated using the serum 2,2-Diphenyl-1-picryl-hydrazyl (DPPH) free-radical scavenging method in 32 patient with Parkinson's disease and 32 control subjects. Our results indicated that serum nitric oxide and lipid hydroperoxide levels were significantly lower in patients with PD than controls. Moreover, nitric oxide levels were found to be negatively correlated with Unified Parkinson's Disease Rating Scale (UPDRS). However, no statistical difference was observed in total serum antioxidant capacities and nitric oxide synthase activities between patients and controls. The present study indicates that although antioxidant capacity was not changed, lipid hydroperoxide (LPO) level was found decreased. This might show pre-oxidative process in these patients. In addition, decreased nitric oxide (NO) level and negative correlation observed between NO level and disease rating scale implicated a role for NO in the disease process.
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Affiliation(s)
- Hikmet Can Çubukçu
- Department of Medical Biochemistry, Ankara University Faculty of Medicine, Morphology Building, Sıhhiye, 06100, Ankara, Turkey.
| | - Mustafa Yurtdaş
- Department of Neurology, Ankara Training and Research Hospital, Ankara, Turkey
| | | | - Bilal Aytaç
- Directorate of Health Services, Turkish Ministry of Health, Ankara, Turkey
| | - Hafize Nalan Güneş
- Department of Neurology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Burcu Gökçe Çokal
- Department of Neurology, Ankara Training and Research Hospital, Ankara, Turkey
| | | | - İlker Durak
- Department of Medical Biochemistry, Ankara University Faculty of Medicine, Morphology Building, Sıhhiye, 06100, Ankara, Turkey
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Suhag D, Sharma AK, Patni P, Garg SK, Rajput SK, Chakrabarti S, Mukherjee M. Hydrothermally functionalized biocompatible nitrogen doped graphene nanosheet based biomimetic platforms for nitric oxide detection. J Mater Chem B 2016; 4:4780-4789. [PMID: 32263252 DOI: 10.1039/c6tb01150k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Hydrothermal synthesis of nanocomposites is of significant importance, as it affords facile, biocompatible, nontoxic, and economic fabrication. Herein, we report a hitherto unexplored cytocompatible and reusable biomimetic electrochemical sensor based on pyridyl porphyrin functionalized nitrogen doped graphene nanosheets. The porphyrin functionalized nitrogen doped graphene nanosheets (PFNGS) were prepared by a low temperature hydrothermal method via non-covalent strategies with a minimal impact on their physicochemical properties. Owing to their exceptional attributes like operational ease, low cost, portability, and sensitivity, the as-synthesized PFNGS, formed by π-π interactions, were employed for sensing nitric oxide (NO), which is a key regulator of diverse biological processes. Compared to porphyrin and nitrogen doped graphene nanosheets alone, PFNGS exhibited exceptional sensitivity (3.6191 μA μM-1) and remarkable electrocatalytic properties (0.61 V). This clearly outperforms the previously reported modified electrode materials for the electrochemical detection of NO. Cyclic voltammetry (CV) data also suggested that the PFNGS modified electrode possessed an increased reactive surface area, which results in an increase in the number of reactive sites and low charge transfer resistance. These results also demonstrated that the PFNGS modified electrode showed high stability and reproducibility, the limit of detection (LOD) (S/N = 3) of which was estimated to be 1 nM. Our PFNGS were found to be highly biocompatible and could also detect NO released from macrophage cells. This blend of biocompatibility, electrode stability, electrocatalytic activity along with enhanced sensitivity and selectivity makes PFNGS a powerful and reliable nanomaterial for various biomedical applications in complex biological systems.
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Affiliation(s)
- Deepa Suhag
- Biomimetic and Nanostructured Materials Research Laboratory, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector 125, Noida, India.
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Paul KC, Sinsheimer JS, Rhodes SL, Cockburn M, Bronstein J, Ritz B. Organophosphate Pesticide Exposures, Nitric Oxide Synthase Gene Variants, and Gene-Pesticide Interactions in a Case-Control Study of Parkinson's Disease, California (USA). ENVIRONMENTAL HEALTH PERSPECTIVES 2016; 124:570-7. [PMID: 26383258 PMCID: PMC4858402 DOI: 10.1289/ehp.1408976] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 09/16/2015] [Indexed: 05/03/2023]
Abstract
BACKGROUND Nitric oxide synthase (NOS) genes are candidates for Parkinson's disease (PD) because NOS enzymes produce nitric oxide (NO), a pro-oxidant that can damage neurons. Widely used organophosphate (OP) pesticides can induce oxidative stress and are reported to increase PD risk. Additionally, two single nucleotide polymorphisms (SNPs) from the PON1 (paraoxonase 1) gene influence the ability to metabolize OPs. OBJECTIVE Here, we investigated contributions of NOS genes and OP pesticides to PD risk, controlling for PON1 status. METHODS In 357 incident PD cases and 495 population controls, we investigated eight NOS SNPs and interactions with both household and ambient agricultural OP exposures assessed with geographic information system (GIS). RESULTS In comparing PD in homozygous variant carriers of NOS2A rs1060826 versus homozygous wild-type or heterozygotes, we estimate an adjusted odds ratio (OR) of 1.51 (95% CI: 0.95, 2.41). When considering interactions between NOS1 rs2682826 and OP exposure from household use, the OR for frequent OP use alone was 1.30 (95% CI: 0.72, 2.34) and for the CT+TT genotype alone was 0.89 (95% CI: 0.58, 1.39), and for frequent OP use combined with the CT+TT genotype the OR was 2.84 (95% CI: 1.49, 5.40) (interaction p-value 0.04). Similar results were seen for ambient OP exposure. Interactions between OP exposure and three other NOS1 SNPs and a genetic risk score combining all NOS1 SNPs reached statistical significance. CONCLUSIONS We found that OP pesticides were more strongly associated with PD among participants with variant genotypes in NOS1, consistent with the importance of oxidative stress-inducing mechanisms. Our data provide evidence for NOS1 modifying PD risk in OP exposed populations. CITATION Paul KC, Sinsheimer JS, Rhodes SL, Cockburn M, Bronstein J, Ritz B. 2016. Organophosphate pesticide exposures, nitric oxide synthase gene variants, and gene-pesticide interactions in a case-control study of Parkinson's disease, California (USA). Environ Health Perspect 124:570-577; http://dx.doi.org/10.1289/ehp.1408976.
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Affiliation(s)
- Kimberly C. Paul
- Department of Epidemiology, Fielding School of Public Health, University of California at Los Angeles (UCLA), Los Angeles, California, USA
| | - Janet S. Sinsheimer
- Department of Human Genetics, and
- Department of Biomathematics, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
- Department of Biostatistics, Fielding School of Public Health, UCLA, Los Angeles, California, USA
| | - Shannon L. Rhodes
- Department of Epidemiology, Fielding School of Public Health, University of California at Los Angeles (UCLA), Los Angeles, California, USA
| | - Myles Cockburn
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Jeff Bronstein
- Department of Neurology, School of Medicine, UCLA, Los Angeles, California, USA
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California at Los Angeles (UCLA), Los Angeles, California, USA
- Department of Neurology, School of Medicine, UCLA, Los Angeles, California, USA
- Department of Environmental Health Sciences, Fielding School of Public Health, UCLA, Los Angeles, California, USA
- Address correspondence to B. Ritz, UCLA, Epidemiology, Box 951772, Los Angeles, CA 90095 USA. Telephone: (310) 206-7438. E-mail:
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Singh BK, Kumar V, Chauhan AK, Dwivedi A, Singh S, Kumar A, Singh D, Patel DK, Ray RS, Jain SK, Singh C. Neuronal Nitric Oxide Synthase Negatively Regulates Zinc-Induced Nigrostriatal Dopaminergic Neurodegeneration. Mol Neurobiol 2016; 54:2685-2696. [PMID: 26995406 DOI: 10.1007/s12035-016-9857-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 03/11/2016] [Indexed: 12/21/2022]
Abstract
The study aimed to investigate the role of NO and neuronal NO synthase (nNOS) in Zn-induced neurodegeneration. Animals were treated with zinc sulfate (20 mg/kg), twice a week, for 2-12 weeks along with control. In a few sets, animals were also treated with/without a NO donor, sodium nitroprusside (SNP), or S-nitroso-N-acetyl penicillamine (SNAP) for 12 weeks. Moreover, human neuroblastoma (SH-SY-5Y) cells were also employed to investigate the role of nNOS in Zn-induced toxicity in in vitro in the presence/absence of nNOS inhibitor, 7-nitroindazole (7-NI). Zn caused time-dependent reduction in nitrite content and total/nNOS activity/expression. SNP/SNAP discernibly alleviated Zn-induced neurobehavioral impairments, dopaminergic neurodegeneration, tyrosine hydroxylase (TH) expression, and striatal dopamine depletion. NO donors also salvage from Zn-induced increase in lipid peroxidation (LPO), mitochondrial cytochrome c release, and caspase-3 activation. While Zn elevated LPO content, it attenuated nitrite content, nNOS activity, and glutathione level along with the expression of TH and nNOS in SH-SY-5Y cells. 7-NI further augmented Zn-induced changes in the cell viability, oxidative stress, and expression of TH and nNOS. The results obtained thus demonstrate that Zn inhibits nNOS that partially contributes to an increase in oxidative stress, which subsequently leads to the nigrostriatal dopaminergic neurodegeneration.
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Affiliation(s)
- Brajesh Kumar Singh
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Vinod Kumar
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, 226 001, Uttar Pradesh, India
| | - Amit Kumar Chauhan
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, 226 001, Uttar Pradesh, India
| | - Ashish Dwivedi
- Phototoxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-IITR, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Shweta Singh
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Ashutosh Kumar
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Deepali Singh
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, 226 001, Uttar Pradesh, India
| | - Devendra Kumar Patel
- Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-IITR, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Ratan Singh Ray
- Phototoxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-IITR, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India
| | - Swatantra Kumar Jain
- Department of Biotechnology, Jamia Hamdard Deemed University, New Delhi, 110 062, Delhi, India
| | - Chetna Singh
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226 001, Uttar Pradesh, India.
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, 226 001, Uttar Pradesh, India.
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Medeiros MS, Schumacher-Schuh A, Cardoso AM, Bochi GV, Baldissarelli J, Kegler A, Santana D, Chaves CMMBS, Schetinger MRC, Moresco RN, Rieder CRM, Fighera MR. Iron and Oxidative Stress in Parkinson's Disease: An Observational Study of Injury Biomarkers. PLoS One 2016; 11:e0146129. [PMID: 26751079 PMCID: PMC4709097 DOI: 10.1371/journal.pone.0146129] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 12/14/2015] [Indexed: 11/19/2022] Open
Abstract
Parkinson's disease (PD) is characterized by progressive motor impairment attributed to progressive loss of dopaminergic neurons in the substantia nigra (SN) pars compacta. In addition to an accumulation of iron, there is also an increased production of reactive oxygen/nitrogen species (ROS/RNS) and inflammatory markers. These observations suggest that iron dyshomeostasis may be playing a key role in neurodegeneration. However, the mechanisms underlying this metal-associated oxidative stress and neuronal damage have not been fully elucidated. To determine peripheral levels of iron, ferritin, and transferrin in PD patients and its possible relation with oxidative/nitrosative parameters, whilst attempting to identify a profile of peripheral biomarkers in this neurological condition. Forty PD patients and 46 controls were recruited to compare serum levels of iron, ferritin, transferrin, oxidative stress markers (superoxide dismutase (SOD), catalase (CAT), nitrosative stress marker (NOx), thiobarbituric acid reactive substances (TBARS), non-protein thiols (NPSH), advanced oxidation protein products (AOPP), ferric reducing ability of plasma (FRAP) and vitamin C) as well as inflammatory markers (NTPDases, ecto-5’-nucleotidase, adenosine deaminase (ADA), ischemic-modified albumin (IMA) and myeloperoxidase). Iron levels were lower in PD patients, whereas there was no difference in ferritin and transferrin. Oxidative stress (TBARS and AOPP) and inflammatory markers (NTPDases, IMA, and myeloperoxidase) were significantly higher in PD, while antioxidants FRAP, vitamin C, and non-protein thiols were significantly lower in PD. The enzymes SOD, CAT, and ecto-5’-nucleotidase were not different among the groups, although NOx and ADA levels were significantly higher in the controls. Our data corroborate the idea that ROS/RNS production and neuroinflammation may dysregulate iron homeostasis and collaborate to reduce the periphery levels of this ion, contributing to alterations observed in the pathophysiology of PD.
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Affiliation(s)
- Marcio S. Medeiros
- Neurology Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Arthur Schumacher-Schuh
- Neurology Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Andreia Machado Cardoso
- Natural and Exact Sciences Center, Graduate Program in Life Sciences: Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Guilherme Vargas Bochi
- Department of Clinical and Toxicological Analyses, Universidade Federal de Santa Maria, Health Sciences Center, Santa Maria, Rio Grande do Sul, Brazil
| | - Jucimara Baldissarelli
- Natural and Exact Sciences Center, Graduate Program in Life Sciences: Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Aline Kegler
- Natural and Exact Sciences Center, Graduate Program in Life Sciences: Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Neuropsychiatry Department, University Hospital, Universidade Federal de Santa Maria, Health Sciences Center, Santa Maria, Rio Grande do Sul, Brazil
| | - Daniel Santana
- Neuropsychiatry Department, University Hospital, Universidade Federal de Santa Maria, Health Sciences Center, Santa Maria, Rio Grande do Sul, Brazil
| | | | - Maria Rosa Chitolina Schetinger
- Natural and Exact Sciences Center, Graduate Program in Life Sciences: Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Rafael Noal Moresco
- Department of Clinical and Toxicological Analyses, Universidade Federal de Santa Maria, Health Sciences Center, Santa Maria, Rio Grande do Sul, Brazil
| | - Carlos R. M. Rieder
- Neurology Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Michele Rechia Fighera
- Natural and Exact Sciences Center, Graduate Program in Life Sciences: Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Neuropsychiatry Department, University Hospital, Universidade Federal de Santa Maria, Health Sciences Center, Santa Maria, Rio Grande do Sul, Brazil
- * E-mail:
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Ikhsan NI, Rameshkumar P, Huang NM. Electrochemical properties of silver nanoparticle-supported reduced graphene oxide in nitric oxide oxidation and detection. RSC Adv 2016. [DOI: 10.1039/c6ra21716h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Influence of different concentrations of ascorbic acid in the formation of rGO–Ag nanocomposites using an in situ synthesis method, and the electrocatalytic oxidation and in situ detection of NO were studied.
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Affiliation(s)
- Nurul Izrini Ikhsan
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
| | - Perumal Rameshkumar
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
| | - Nay Ming Huang
- Low Dimensional Materials Research Centre
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
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Abstract
There are numerous gaseous substances that can act as signaling molecules, but the best characterized of these are nitric oxide, hydrogen sulfide and carbon monoxide. Each has been shown to play important roles in many physiological and pathophysiological processes. This article is focused on the effects of these gasotransmitters in the context of inflammation. There is considerable overlap in the actions of nitric oxide, hydrogen sulfide and carbon monoxide with respect to inflammation, and these mediators appear to act primarily as anti-inflammatory substances, promoting resolution of inflammatory processes. They also have protective and pro-healing effects in some tissues, such as the gastrointestinal tract and lung. Over the past two decades, significant progress has been made in the development of novel anti-inflammatory and cytoprotective drugs that release of one or more of these gaseous mediators.
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Association of Polymorphism of Neuronal Nitric Oxide Synthase Gene with Risk to Parkinson’s Disease. Mol Neurobiol 2015; 53:3309-3314. [DOI: 10.1007/s12035-015-9274-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 05/28/2015] [Indexed: 12/29/2022]
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Sharma N, Nehru B. Apocyanin, a Microglial NADPH Oxidase Inhibitor Prevents Dopaminergic Neuronal Degeneration in Lipopolysaccharide-Induced Parkinson's Disease Model. Mol Neurobiol 2015; 53:3326-3337. [PMID: 26081143 DOI: 10.1007/s12035-015-9267-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 05/28/2015] [Indexed: 02/05/2023]
Abstract
Microglia-associated inflammatory processes have been strongly implicated in the development and progression of Parkinson's disease (PD). Specifically, microglia are activated in response to lipopolysaccharide (LPS) and become chronic source of cytokines and reactive oxygen species (ROS) production. Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase complex is responsible for extracellular as well as intracellular production of ROS by microglia and its expression is upregulated in PD. Therefore, targeting NADPH oxidase complex activation using an NADPH oxidase inhibitor, i.e., apocyanin seems to be an effective approach. The aim of present study was to investigate the neuroprotective effects of apocyanin in a LPS-induced PD model. LPS (5 μg) was injected intranigral and apocyanin was administered daily at a dose of 10 mg/kg b.wt (i.p.) during the experiment. LPS when injected into the substantia nigra (SN) reproduced the characteristic hallmark features of PD in rats. It elicited an inflammatory response characterized by glial cell activation (Iba-1, GFAP). Furthermore, LPS upregulated the gene expression of nuclear factor-κB (NFκB), iNOS, and gp91PHOX and resulted in an elevated total ROS production as well as NADPH oxidase activity. Subsequently, this resulted in dopaminergic loss as depicted by decreased tyrosine hydroxylase (TH) expression with substantial loss in neurotransmitter dopamine and its metabolites, whereas treatment with apocyanin significantly reduced the number of glial fibrillary acidic protein (GFAP) and Iba-1-positive cells in LPS-treated animals. It also mitigated microglial activation-induced inflammatory response and elevation in NADPH oxidase activity, thus reducing the extracellular as well as intracellular ROS production. The present study indicated that targeting NADPH oxidase can inhibit microglial activation and reduce a broad spectrum of toxic factors generation (i.e., cytokines, ROS, and reactive nitrogen species [RNS]), thus offering a hope in halting the progression of PD.
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Affiliation(s)
- Neha Sharma
- Department of Biophysics, Panjab University, Chandigarh, 160014, India
| | - Bimla Nehru
- Department of Biophysics, Panjab University, Chandigarh, 160014, India.
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Tripathy D, Chakraborty J, Mohanakumar KP. Antagonistic pleiotropic effects of nitric oxide in the pathophysiology of Parkinson's disease. Free Radic Res 2015; 49:1129-39. [DOI: 10.3109/10715762.2015.1045505] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Ryu YK, Lee MH, Lee J, Lee JW, Jang SJ, Kang JH, Moon EY. γ-Irradiated cancer cells promote tumor growth by activation of Toll-like receptor 1-mediated inducible nitric oxide synthase in macrophages. J Leukoc Biol 2015; 97:711-721. [DOI: 10.1189/jlb.3a0114-055r] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Abstract
Abstract
RT is commonly used to treat malignant tumors. However, tumor regrowth is a major limitation to RT as an antitumor treatment. In the present study, we investigated the tumor-promoting effects of high-dose (or ablative) RT treatments on tumor-bearing mice. We focused on the role of macrophages that interact with IR-CCs in the TME, which cause tumor regrowth. We observed that CT26(H-2d) tumor growth was enhanced by i.v. injection of IR-CT26 cells compared with NR control CT26 cells. The levels of iNOS gene expression and NO production from RAW264.7 macrophages (H-2d) in response to the interaction with IR-CT26 cells were higher than with NR-CT26 cells. When CT26 tumor-bearing mice were treated i.v. with L-NMMA, a NOS inhibitor, the reduction in in vivo tumor growth was higher in the IR-CT26-injected group compared with the NR-CT26-injected control group. In vivo CT26 tumor growth was decreased after transplanting PEM extracted from L-NMMA-treated, tumor-bearing mice. Although iNOS activity was reduced by inhibiting TLR1 expression with TLR1-siRNA, it was enhanced by TLR1 overexpression. Transcriptional activation and protein expression levels of iNOS were also decreased in the presence of TLR1-siRNA but increased as a result of TLR1 overexpression. These results demonstrate that postradiotherapeutic tumor regrowth may be caused by interaction of IR-CCs with macrophages that induce TLR1-mediated iNOS expression and NO production. Our data suggest that iNOS in macrophages could be a useful target to regulate postradiotherapeutic responses in hosts and subsequently limit tumor regrowth.
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Affiliation(s)
- Yun-Kyoung Ryu
- Department of Bioscience and Biotechnology, Sejong University , Seoul , Korea
| | - Mi-Hee Lee
- Department of Bioscience and Biotechnology, Sejong University , Seoul , Korea
| | - Jiyoung Lee
- Department of Bioscience and Biotechnology, Sejong University , Seoul , Korea
| | - Jae-Wook Lee
- Department of Bioscience and Biotechnology, Sejong University , Seoul , Korea
| | - Su-Jin Jang
- Molecular Imaging Research Center, Korea Institute of Radiological and Medical Science , Seoul , Korea
| | - Joo-Hyun Kang
- Molecular Imaging Research Center, Korea Institute of Radiological and Medical Science , Seoul , Korea
| | - Eun-Yi Moon
- Department of Bioscience and Biotechnology, Sejong University , Seoul , Korea
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Gao K, Liu M, Cao J, Yao M, Lu Y, Li J, Zhu X, Yang Z, Wen A. Protective effects of Lycium barbarum polysaccharide on 6-OHDA-induced apoptosis in PC12 cells through the ROS-NO pathway. Molecules 2014; 20:293-308. [PMID: 25547727 PMCID: PMC6272587 DOI: 10.3390/molecules20010293] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 12/19/2014] [Indexed: 12/11/2022] Open
Abstract
Oxidative stress plays an important role in Parkinson’s disease and other neurodegenerative disorders. Lycium barbarum polysaccharides (LBP), the main active ingredients extracted from the fruits of Lycium barbarum L., have been shown to be a potent antioxidant. In the present study, we investigated the protective effects, and the possible mechanism of action of LBP against 6-hydroxydopamine (6-OHDA)-induced apoptosis in PC12 cells. Our data demonstrated that LBP significantly reversed the 6-OHDA-induced decrease in cell viability, prevented 6-OHDA-induced changes in condensed nuclei and decreased the percentage of apoptotic cells in a dose-dependent manner. Furthermore, LBP also slowed the accumulation of reactive oxygen species (ROS) and nitric oxide (NO), decreased the level of protein-bound 3-nitrotyrosine (3-NT) and intracellular free Ca2+, and inhibiting the overexpression of nuclear factor κB (NF-κB), neuronal nitric oxide synthase (nNOS) and inducible nitric oxide synthase (iNOS). These results demonstrate that LBP prevents 6-OHDA-induced apoptosis in PC12 cells, at least in part through the ROS-NO pathway.
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Affiliation(s)
- Kai Gao
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Meiyou Liu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Jinyi Cao
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Minna Yao
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Yunyang Lu
- Institute of Materia Medica, School of Pharmacy, Fourth Military Medical University, Xi'an 710032, China.
| | - Jiankang Li
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Xiaohe Zhu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Zhifu Yang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Aidong Wen
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
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The actin-sequestering protein thymosin beta-4 is a novel target of hypoxia-inducible nitric oxide and HIF-1α regulation. PLoS One 2014; 9:e106532. [PMID: 25271630 PMCID: PMC4182666 DOI: 10.1371/journal.pone.0106532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 08/05/2014] [Indexed: 11/19/2022] Open
Abstract
The actin-sequestering protein thymosin beta-4 (Tβ4) is involved in various cellular and physiological processes such as proliferation, motility, growth and metastasis. Nitric oxide (NO) promotes tumor invasiveness and metastasis by activating various enzymes. Herein, we investigated whether hypoxia-inducible NO regulates Tβ4 expression and cancer cell migration using HeLa cervical cancer cells. NO production and Tβ4 expression were increased in a hypoxic condition. The treatment with N-(β-D-Glucopyranosyl)-N2-acetyl-S-nitroso-D, L-penicillaminamide (SNAP-1), to generate NO, enhanced the transcription of Tβ4 and cancer cell migration. SNAP-1-induced cell migration was decreased by the inhibition of Tβ4 with small interference (si) RNA. In a hypoxic condition, treatment with NG-monomethyl-L-arginine (L-NMMA), nitric oxide synthase (NOS) inhibitor, reduced Tβ4 transcriptional activity, and hypoxia-inducible factor (HIF)-1α. Hypoxia-induced cancer cell migration was also decreased by L-NMMA treatment. In a normoxic condition, Tβ4 transcriptional activity was decreased in the cells incubated in the presence of L-NMMA after co-transfection with Tβ4 promoter and GST-conjugated HIF-1α. Collectively, these results suggest that NO could regulate the expression of Tβ4 by direct or indirect effect of HIF-1α on Tβ4 promoter.
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Pathologic role of glial nitric oxide in adult and pediatric neuroinflammatory diseases. Neurosci Biobehav Rev 2014; 45:168-82. [DOI: 10.1016/j.neubiorev.2014.06.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 05/28/2014] [Accepted: 06/05/2014] [Indexed: 01/22/2023]
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Jayabal S, Viswanathan P, Ramaraj R. Reduced graphene oxide–gold nanorod composite material stabilized in silicate sol–gel matrix for nitric oxide sensor. RSC Adv 2014. [DOI: 10.1039/c4ra04859h] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Gold nanoparticles decorated reduced graphene oxide for detecting the presence and cellular release of nitric oxide. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.08.036] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Effect of human interleukin-10 on the expression of nitric oxide synthases in the MPTP-based model of Parkinson's disease. Pharmacol Rep 2013; 65:44-9. [PMID: 23563022 DOI: 10.1016/s1734-1140(13)70962-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 09/27/2012] [Indexed: 01/28/2023]
Abstract
BACKGROUND Parkinson's disease (PD) is the second most common progressive neurodegenerative disorder. The degeneration of the nigro-striatal pathway has been linked with the inflammatory process accompanied by the robust up-regulation of the nitric oxide synthase (NOS) and production of the neurotoxic level of nitric oxide (NO). One of the therapeutic strategies of PD is based on the reduction of the detrimental neuroinflammatory markers in the lesioned nigro-striatal pathway. In this study we have investigated the neuroprotective effect of the cerebral infusion of recombinant adeno-associated viral vector, expressing the gene for human interleukin-10 (AAV2-hIL-10) in a mouse model of PD induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). It is known that IL-10 is a potent anti-inflammatory cytokine that limits the inducible nitric oxide synthase (iNOS) gene expression. METHODS The striatal iNOS, neuronal nitric oxide synthase (nNOS) and tyrosine hydroxylase (TH) protein expression was evaluated by immunoblot analysis. RESULTS The intracerebral injection of the AAV2-hIL-10, before the lesion, induced the upregulation of the striatal TH protein, depleted by MPTP intoxication. This AAV2-hIL-10-induced increase of TH level was associated with the suppression of iNOS protein expression in the lesioned striatum. CONCLUSION The results revealed protective properties of AAV2-hIL-10.
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Chatsuriyawong S, Gozal D, Kheirandish-Gozal L, Bhattacharjee R, Khalyfa AA, Wang Y, Sukhumsirichart W, Khalyfa A. Polymorphisms in nitric oxide synthase and endothelin genes among children with obstructive sleep apnea. BMC Med Genomics 2013; 6:29. [PMID: 24010499 PMCID: PMC3844410 DOI: 10.1186/1755-8794-6-29] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 08/29/2013] [Indexed: 12/13/2022] Open
Abstract
Background Obstructive sleep apnea (OSA) is associated with adverse and interdependent cognitive and cardiovascular consequences. Increasing evidence suggests that nitric oxide synthase (NOS) and endothelin family (EDN) genes underlie mechanistic aspects of OSA-associated morbidities. We aimed to identify single nucleotide polymorphisms (SNPs) in the NOS family (3 isoforms), and EDN family (3 isoforms) to identify potential associations of these SNPs in children with OSA. Methods A pediatric community cohort (ages 5–10 years) enriched for snoring underwent overnight polysomnographic (NPSG) and a fasting morning blood draw. The diagnostic criteria for OSA were an obstructive apnea-hypopnea Index (AHI) >2/h total sleep time (TST), snoring during the night, and a nadir oxyhemoglobin saturation <92%. Control children were defined as non-snoring children with AHI <2/h TST (NOSA). Endothelial function was assessed using a modified post-occlusive hyperemic test. The time to peak reperfusion (Tmax) was considered as the indicator for normal endothelial function (NEF; Tmax<45 sec), or ED (Tmax≥45 sec). Genomic DNA from peripheral blood was extracted and allelic frequencies were assessed for, NOS1 (209 SNPs), NOS2 (122 SNPs), NOS3 (50 SNPs), EDN1 (43 SNPs), EDN2 (48 SNPs), EDN3 (14 SNPs), endothelin receptor A, EDNRA, (27 SNPs), and endothelin receptor B, EDNRB (23 SNPs) using a custom SNPs array. The relative frequencies of NOS-1,-2, and −3, and EDN-1,-2,-3,-EDNRA, and-EDNRB genotypes were evaluated in 608 subjects [128 with OSA, and 480 without OSA (NOSA)]. Furthermore, subjects with OSA were divided into 2 subgroups: OSA with normal endothelial function (OSA-NEF), and OSA with endothelial dysfunction (OSA-ED). Linkage disequilibrium was analyzed using Haploview version 4.2 software. Results For NOSA vs. OSA groups, 15 differentially distributed SNPs for NOS1 gene, and 1 SNP for NOS3 emerged, while 4 SNPs for EDN1 and 1 SNP for both EDN2 and EDN3 were identified. However, in the smaller sub-group for whom endothelial function was available, none of the significant SNPs was retained due to lack of statistical power. Conclusions Differences in the distribution of polymorphisms among NOS and EDN gene families suggest that these SNPs could play a contributory role in the pathophysiology and risk of OSA-induced cardiovascular morbidity. Thus, analysis of genotype-phenotype interactions in children with OSA may assist in the formulation of categorical risk estimates.
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Affiliation(s)
- Siriporn Chatsuriyawong
- Department of Pediatrics, Comer Children's Hospital, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, 900 E, 57th Street, KCBD, 4112, Chicago, IL 60637, USA.
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Does Restraining Nitric Oxide Biosynthesis Rescue from Toxins-Induced Parkinsonism and Sporadic Parkinson's Disease? Mol Neurobiol 2013; 49:262-75. [DOI: 10.1007/s12035-013-8517-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 07/16/2013] [Indexed: 12/21/2022]
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Carloni M, Nasuti C, Fedeli D, Montani M, Vadhana MSD, Amici A, Gabbianelli R. Early life permethrin exposure induces long-term brain changes in Nurr1, NF-kB and Nrf-2. Brain Res 2013; 1515:19-28. [PMID: 23566817 DOI: 10.1016/j.brainres.2013.03.048] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 03/19/2013] [Accepted: 03/29/2013] [Indexed: 12/15/2022]
Abstract
Pesticide exposure during brain development represents an important risk factor for the onset of brain-aging processes. Here, the impact of permethrin administered to rats from 6th to 21st day of life, at a dose near to "no observed adverse effect level" (NOAEL), was studied when animals reached 500 day-old. The permethrin treatment induced a decrease in Nurr1 gene expression in striatum, an increase in hippocampus and cerebellum, while the protein level changed only in striatum where it was increased. NF-kB p65 gene expression was increased in cerebellum, while its protein level augmented in cerebellum and in prefrontal cortex and decreased in hippocampus of treated rats compared to control ones. Nrf-2 gene expression resulted significantly higher only in cerebellum of treated animals. The results suggest that early life permethrin treatment induces long-lasting effects leading to dopaminergic neuronal disorders, monitored by Nurr1 alteration. Moreover the impairment of NF-kB and Nrf-2, important for the balance between pro- and anti-inflammatory systems, confirms that the neonatal permethrin treatment can influence genes involved with the onset of brain-ageing processes.
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Cui W, Zhang Z, Li W, Mak S, Hu S, Zhang H, Yuan S, Rong J, Choi TC, Lee SMY, Han Y. Unexpected neuronal protection of SU5416 against 1-Methyl-4-phenylpyridinium ion-induced toxicity via inhibiting neuronal nitric oxide synthase. PLoS One 2012; 7:e46253. [PMID: 23049997 PMCID: PMC3457988 DOI: 10.1371/journal.pone.0046253] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Accepted: 08/31/2012] [Indexed: 12/05/2022] Open
Abstract
SU5416 was originally designed as a potent and selective inhibitor of vascular endothelial growth factor receptor-2 (VEGFR-2) for cancer therapy. In this study, we have found for the first time that SU5416 unexpectedly prevented 1-methyl-4-phenylpyridinium ion (MPP(+))-induced neuronal apoptosis in cerebellar granule neurons, and decreased 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced loss of dopaminergic neurons and impairment of swimming behavior in zebrafish in a concentration-dependent manner. However, VEGFR-2 kinase inhibitor II, another specific VEGFR-2 inhibitor, failed to reverse neurotoxicity at the concentration exhibiting anti-angiogenic activity, strongly suggesting that the neuroprotective effect of SU5416 is independent from its anti-angiogenic action. SU5416 potently reversed MPP(+)-increased intracellular nitric oxide level with an efficacy similar to 7-nitroindazole, a specific neuronal nitric oxide synthase (nNOS) inhibitor. Western blotting analysis showed that SU5416 reduced the elevation of nNOS protein expression induced by MPP(+). Furthermore, SU5416 directly inhibited the enzyme activity of rat cerebellum nNOS with an IC(50) value of 22.7 µM. In addition, knock-down of nNOS expression using short hairpin RNA (shRNA) abolished the neuroprotective effects of SU5416 against MPP(+)-induced neuronal loss. Our results strongly demonstrate that SU5416 might exert its unexpected neuroprotective effects by concurrently reducing nNOS protein expression and directly inhibiting nNOS enzyme activity. In view of the capability of SU5416 to cross the blood-brain barrier and the safety for human use, our findings further indicate that SU5416 might be a novel drug candidate for neurodegenerative disorders, particularly those associated with NO-mediated neurotoxicity.
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Affiliation(s)
- Wei Cui
- Department of Applied Biology and Chemical Technology, Institute of Modern Medicine, The Hong Kong Polytechnic University, Hong Kong, China
| | - Zaijun Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
- Institute of New Drug Research, Guangdong Province Key Laboratory of Pharmacodynamic, Constituents of Traditional Chinese Medicine & New Drug Research, College of Pharmacy, Jinan University, Guang Zhou, Guangdong, China
| | - Wenming Li
- Department of Applied Biology and Chemical Technology, Institute of Modern Medicine, The Hong Kong Polytechnic University, Hong Kong, China
| | - Shinghung Mak
- Department of Applied Biology and Chemical Technology, Institute of Modern Medicine, The Hong Kong Polytechnic University, Hong Kong, China
| | - Shengquan Hu
- Department of Applied Biology and Chemical Technology, Institute of Modern Medicine, The Hong Kong Polytechnic University, Hong Kong, China
| | - Huan Zhang
- Department of Applied Biology and Chemical Technology, Institute of Modern Medicine, The Hong Kong Polytechnic University, Hong Kong, China
| | - Shuai Yuan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jianhui Rong
- School of Chinese Medicine, the University of Hong Kong, Hong Kong, China
| | - Tony Chunglit Choi
- Department of Applied Biology and Chemical Technology, Institute of Modern Medicine, The Hong Kong Polytechnic University, Hong Kong, China
| | - Simon M. Y. Lee
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yifan Han
- Department of Applied Biology and Chemical Technology, Institute of Modern Medicine, The Hong Kong Polytechnic University, Hong Kong, China
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