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Jin M, Shi R, Gao D, Wang B, Li N, Li X, Sik A, Liu K, Zhang X. ErbB2 pY -1248 as a predictive biomarker for Parkinson's disease based on research with RPPA technology and in vivo verification. CNS Neurosci Ther 2024; 30:e14407. [PMID: 37564024 PMCID: PMC10848095 DOI: 10.1111/cns.14407] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 07/27/2023] [Accepted: 07/30/2023] [Indexed: 08/12/2023] Open
Abstract
AIMS This study aims to reveal a promising biomarker for Parkinson's disease (PD) based on research with reverse phase protein array (RPPA) technology for the first time and in vivo verification, which gains time for early intervention in PD, thus increasing the effectiveness of treatment and reducing disease morbidity. METHODS AND RESULTS We employed RPPA technology which can assess both total and post-translationally modified proteins to identify biomarker candidates of PD in a cellular PD model. As a result, the phosphorylation (pY-1248) of the epidermal growth factor receptor (EGFR) ErbB2 is a promising biomarker candidate for PD. In addition, lapatinib, an ErbB2 tyrosine kinase inhibitor, was used to verify this PD biomarker candidate in vivo. We found that lapatinib-attenuated dopaminergic neuron loss and PD-like behavior in the zebrafish PD model. Accordingly, the expression of ErbB2pY-1248 significantly increased in the MPTP-induced mouse PD model. Our results suggest that ErbB2pY-1248 is a predictive biomarker for PD. CONCLUSIONS In this study, we found that ErbB2pY-1248 is a predictive biomarker of PD by using RPPA technology and in vivo verification. It offers a new perspective on PD diagnosing and treatment, which will be essential in identifying individuals at risk of PD. In addition, this study provides new ideas for digging into biomarkers of other neurodegenerative diseases.
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Affiliation(s)
- Meng Jin
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences)Ji'nanChina
- Engineering Research Center of Zebrafish Models for Human Diseases and Drug Screening of Shandong ProvinceJi'nanChina
| | - Ruidie Shi
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences)Ji'nanChina
- Engineering Research Center of Zebrafish Models for Human Diseases and Drug Screening of Shandong ProvinceJi'nanChina
- School of PsychologyNorth China University of Science and TechnologyTang'shanChina
| | - Daili Gao
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences)Ji'nanChina
- Engineering Research Center of Zebrafish Models for Human Diseases and Drug Screening of Shandong ProvinceJi'nanChina
| | - Baokun Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences)Ji'nanChina
- Engineering Research Center of Zebrafish Models for Human Diseases and Drug Screening of Shandong ProvinceJi'nanChina
| | - Ning Li
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences)Ji'nanChina
- Engineering Research Center of Zebrafish Models for Human Diseases and Drug Screening of Shandong ProvinceJi'nanChina
| | - Xia Li
- Mills Institute for Personalized Cancer Care, Fynn Biotechnologies Ltd.Ji'nanChina
| | - Attila Sik
- Institute of Transdisciplinary Discoveries, Medical SchoolUniversity of PecsPécsHungary
- Institute of Clinical Sciences, Medical SchoolUniversity of BirminghamBirminghamUK
- Institute of Physiology, Medical SchoolUniversity of PecsPécsHungary
| | - Kechun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences)Ji'nanChina
- Engineering Research Center of Zebrafish Models for Human Diseases and Drug Screening of Shandong ProvinceJi'nanChina
| | - Xiujun Zhang
- School of PsychologyNorth China University of Science and TechnologyTang'shanChina
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Akan T, Aydın Y, Korkmaz OT, Ulupınar E, Saydam F. The Effects of Carvacrol on Transient Receptor Potential (TRP) Channels in an Animal Model of Parkinson's Disease. Neurotox Res 2023; 41:660-669. [PMID: 37452911 DOI: 10.1007/s12640-023-00660-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/23/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023]
Abstract
In this study, we aimed to investigate the effects of carvacrol (CA), a widely used phytochemical having anti-oxidant and neuroprotective effects, on transient receptor potential (TRP) channels in an animal model of Parkinson's disease (PD). A total of 64 adult male Spraque-Dawley rats were divided into four groups: sham-operated, PD animal model (unilateral intrastriatal injections of 6-hydroxydopamine (6-OHDA), 6 µg/µl), PD + vehicle (dimethyl sulfoxide (DMSO)) treatment, and PD + CA treatment (10 mg/kg, every other day, for 14 days). Half of the brain samples of substantia nigra pars compacta (SNpc) and striatum (CPu) were collected for immunohistochemistry and the remaining half were used for molecular analyses. CA treatment significantly increased the density of dopaminergic neurons immunolabeled with tyrosine hydroxylase and transient receptor potential canonical 1 (TRPC1) channel in the SNpc of PD animals. In contrast, the density of astrocytes immunolabeled with glial fibrillary acetic acid and transient receptor potential ankyrin 1 (TRPA1) channel significantly decreased following CA treatment in the CPu of PD animals. RT-PCR and western blot analyses showed that 6-OHDA administration significantly reduced TRPA1 and TPRPC1 mRNA expression and protein levels in both SNpc and CPu. CA treatment significantly upregulated TRPA1 expression in PD group, while TRPC1 levels did not display an alteration. Based on this data it was concluded that CA treatment might protect the number of dopaminergic neurons by reducing the reactive astrogliosis and modulating the expression of TRP channels in both neurons and astrocytes in an animal model of PD.
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Affiliation(s)
- Tülay Akan
- Department of Physiology, Faculty of Medicine, Afyonkarahisar Health Sciences University, Zafer Sağlık Külliyesi B Blok, Dörtyol Mah, 2078 Sk, No. 3, 03030, Afyonkarahisar, Turkey.
| | - Yasemin Aydın
- Department of Physiology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Orhan Tansel Korkmaz
- Department of Physiology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Emel Ulupınar
- Department of Anatomy, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Faruk Saydam
- Department of Medical Biology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
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3
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Lurette O, Martín-Jiménez R, Khan M, Sheta R, Jean S, Schofield M, Teixeira M, Rodriguez-Aller R, Perron I, Oueslati A, Hebert-Chatelain E. Aggregation of alpha-synuclein disrupts mitochondrial metabolism and induce mitophagy via cardiolipin externalization. Cell Death Dis 2023; 14:729. [PMID: 37949858 PMCID: PMC10638290 DOI: 10.1038/s41419-023-06251-8] [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: 01/03/2023] [Revised: 10/16/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023]
Abstract
Accumulation of α-synuclein aggregates in the substantia nigra pars compacta is central in the pathophysiology of Parkinson's disease, leading to the degeneration of dopaminergic neurons and the manifestation of motor symptoms. Although several PD models mimic the pathological accumulation of α-synuclein after overexpression, they do not allow for controlling and monitoring its aggregation. We recently generated a new optogenetic tool by which we can spatiotemporally control the aggregation of α-synuclein using a light-induced protein aggregation system. Using this innovative tool, we aimed to characterize the impact of α-synuclein clustering on mitochondria, whose activity is crucial to maintain neuronal survival. We observed that aggregates of α-synuclein transiently and dynamically interact with mitochondria, leading to mitochondrial depolarization, lower ATP production, mitochondrial fragmentation and degradation via cardiolipin externalization-dependent mitophagy. Aggregation of α-synuclein also leads to lower mitochondrial content in human dopaminergic neurons and in mouse midbrain. Interestingly, overexpression of α-synuclein alone did not induce mitochondrial degradation. This work is among the first to clearly discriminate between the impact of α-synuclein overexpression and aggregation on mitochondria. This study thus represents a new framework to characterize the role of mitochondria in PD.
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Affiliation(s)
- Olivier Lurette
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada
- Department of Biology, University of Moncton, Moncton, NB, Canada
| | - Rebeca Martín-Jiménez
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada
- Department of Biology, University of Moncton, Moncton, NB, Canada
| | - Mehtab Khan
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada
- Department of Biology, University of Moncton, Moncton, NB, Canada
| | - Razan Sheta
- CHU de Québec Research Center, Axe Neurosciences, Quebec City, QC, Canada
- Department of Molecular Medecine, Université Laval, Quebec City, QC, Canada
| | - Stéphanie Jean
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada
- Department of Biology, University of Moncton, Moncton, NB, Canada
| | - Mia Schofield
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada
- Department of Biology, University of Moncton, Moncton, NB, Canada
| | - Maxime Teixeira
- CHU de Québec Research Center, Axe Neurosciences, Quebec City, QC, Canada
- Department of Molecular Medecine, Université Laval, Quebec City, QC, Canada
| | - Raquel Rodriguez-Aller
- CHU de Québec Research Center, Axe Neurosciences, Quebec City, QC, Canada
- Department of Molecular Medecine, Université Laval, Quebec City, QC, Canada
| | - Isabelle Perron
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada
- Department of Biology, University of Moncton, Moncton, NB, Canada
| | - Abid Oueslati
- CHU de Québec Research Center, Axe Neurosciences, Quebec City, QC, Canada
- Department of Molecular Medecine, Université Laval, Quebec City, QC, Canada
| | - Etienne Hebert-Chatelain
- Canada Research Chair in Mitochondrial Signaling and Physiopathology, Moncton, NB, Canada.
- Department of Biology, University of Moncton, Moncton, NB, Canada.
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4
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Ibarra-Gutiérrez MT, Serrano-García N, Orozco-Ibarra M. Rotenone-Induced Model of Parkinson's Disease: Beyond Mitochondrial Complex I Inhibition. Mol Neurobiol 2023; 60:1929-1948. [PMID: 36593435 DOI: 10.1007/s12035-022-03193-8] [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: 07/29/2022] [Accepted: 12/23/2022] [Indexed: 01/04/2023]
Abstract
Parkinson's disease (PD) is usually diagnosed through motor symptoms that make the patient incapable of carrying out daily activities; however, numerous non-motor symptoms include olfactory disturbances, constipation, depression, excessive daytime sleepiness, and rapid eye movement at sleep; they begin years before motor symptoms. Therefore, several experimental models have been studied to reproduce several PD functional and neurochemical characteristics; however, no model mimics all the PD motor and non-motor symptoms to date, which becomes a limitation for PD study. It has become increasingly relevant to find ways to study the disease from its slowly progressive nature. The experimental models most frequently used to reproduce PD are based on administering toxic chemical compounds, which aim to imitate dopamine deficiency. The most used toxic compounds to model PD have been 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and 6-hydroxydopamine (6-OHDA), which inhibit the complex I of the electron transport chain but have some limitations. Another toxic compound that has drawn attention recently is rotenone, the classical inhibitor of mitochondrial complex I. Rotenone triggers the progressive death of dopaminergic neurons and α-synuclein inclusions formation in rats; also, rotenone induces microtubule destabilization. This review presents information about the experimental model of PD induced by rotenone, emphasizing its molecular characteristics beyond the inhibition of mitochondrial complex I.
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Affiliation(s)
- María Teresa Ibarra-Gutiérrez
- Laboratorio de Neurobiología Molecular y Celular, Instituto Nacional de Neurología y Neurocirugía, Av. Insurgentes Sur No. 3877 Col. La Fama, Tlalpan, C.P. 14269, Ciudad de Mexico, Mexico
| | - Norma Serrano-García
- Laboratorio de Neurobiología Molecular y Celular, Instituto Nacional de Neurología y Neurocirugía, Av. Insurgentes Sur No. 3877 Col. La Fama, Tlalpan, C.P. 14269, Ciudad de Mexico, Mexico
| | - Marisol Orozco-Ibarra
- Laboratorio de Neurobiología Molecular y Celular, Instituto Nacional de Neurología y Neurocirugía, Av. Insurgentes Sur No. 3877 Col. La Fama, Tlalpan, C.P. 14269, Ciudad de Mexico, Mexico.
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5
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Zhou X, Zhao R, Lv M, Xu X, Liu W, Li X, Gao Y, Zhao Z, Zhang Z, Li Y, Xu R, Wan Q, Cui Y. ACSL4 promotes microglia-mediated neuroinflammation by regulating lipid metabolism and VGLL4 expression. Brain Behav Immun 2023; 109:331-343. [PMID: 36791893 DOI: 10.1016/j.bbi.2023.02.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 02/09/2023] [Accepted: 02/11/2023] [Indexed: 02/16/2023] Open
Abstract
Acyl-CoA synthetase long-chain family member 4 (ACSL4) is an important isozyme in polyunsaturated fatty acid (PUFA) metabolism. The role of ACSL4 in the lipopolysaccharide (LPS)-induced inflammation of microglia, and the effects of ACSL4-mediated inflammation on the progression of Parkinson's disease (PD) are unknown. In this study, we found that ACSL4 expression was increased after LPS stimulation. Knocking down ACSL4 in microglia decreased proinflammatory cytokine production. Mechanistically, ACSL4 reduced vestigial-like family member 4(VGLL4) expression to promote NF-κB signal transduction; and ACSL4 regulated lipid composition after LPS stimulation. In addition, knocking down ACSL4 alleviated neuroinflammation in a systemic LPS model and acute l-methyl-4-phenyl-l,2,3,6-tetrahydropyridine (MPTP) model. These data revealed ACSL4 to be a novel regulator that promotes microglia-mediated neuroinflammation by regulating VGLL4 expression and lipid metabolism.
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Affiliation(s)
- Xin Zhou
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China; Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Rui Zhao
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao 266000, Shandong, China
| | - Mengfei Lv
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China; Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Xiangyu Xu
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China; Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Wenhao Liu
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao 266000, Shandong, China
| | - Xiaohua Li
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China; Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Yunyi Gao
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China; Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Zhiyuan Zhao
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao 266000, Shandong, China
| | - Zhaolong Zhang
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao 266000, Shandong, China
| | - Yuxuan Li
- Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Rui Xu
- Department of Interventional Radiology, The Affiliated Hospital of Qingdao University, Jiangsu Road 16, Qingdao 266000, Shandong, China
| | - Qi Wan
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China; Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Yu Cui
- Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China; Qingdao Medical College, Qingdao University, Qingdao 266071, China.
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6
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Chen YH, Kuo YY, You YQ, Lin YT, Chen PC. Endonuclease VIII-like 1 deficiency potentiates nigrostriatal dopaminergic neuron degeneration in a male mouse model of Parkinson's disease. J Neurochem 2023; 165:741-755. [PMID: 36840377 DOI: 10.1111/jnc.15794] [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: 11/28/2022] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 02/26/2023]
Abstract
Parkinson's disease (PD) is a common movement disorder caused by a characteristic loss of dopaminergic neurons in the substantia nigra and degeneration of dopamine terminals in the dorsal striatum. Previous studies have suggested that oxidative stress-induced DNA damage may be involved in PD pathogenesis, as steady-state levels of several types of oxidized nucleobases were shown to be elevated in PD brain tissues. These DNA lesions are normally removed from the genome by base excision repair, which is initiated by DNA glycosylase enzymes such as endonuclease VIII-like 1 (Neil1). In this study, we show that Neil1 plays an important role in limiting oxidative stress-induced degeneration of dopaminergic neurons. In particular, Neil1-deficient male mice exhibited enhanced sensitivity to nigrostriatal degeneration after 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) administration, and Neil1-deficient animals had higher levels of γH2AX-marked DNA damage than wild-type (WT) controls, regardless of treatment status. Moreover, MPTP-treated Neil1-/- male mice had slightly elevated expression of genes related to the nuclear factor erythroid 2-related factor 2 (Nrf2)-dependent antioxidant pathway. Treatment with the Nrf2 activator, monomethyl fumarate, reduced PD-like behaviors and pathology in Neil1-/- male mice, suggesting that Neil1 is an important defense molecule in an oxidative cellular environment. Taken together, these results suggest that Neil1 DNA glycosylase may play an important role in limiting oxidative stress-mediated PD pathogenesis.
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Affiliation(s)
- Yu-Hsuan Chen
- Department of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Ying Kuo
- Department of Physiology, National Cheng Kung University, Tainan, Taiwan.,Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Qian You
- Department of Physiology, National Cheng Kung University, Tainan, Taiwan
| | - Ya-Tin Lin
- Graduate Institute of Metabolism and Obesity sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Pei-Chun Chen
- Department of Physiology, National Cheng Kung University, Tainan, Taiwan.,Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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7
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McDonald TS, Lerskiatiphanich T, Woodruff TM, McCombe PA, Lee JD. Potential mechanisms to modify impaired glucose metabolism in neurodegenerative disorders. J Cereb Blood Flow Metab 2023; 43:26-43. [PMID: 36281012 PMCID: PMC9875350 DOI: 10.1177/0271678x221135061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 09/01/2022] [Accepted: 09/21/2022] [Indexed: 01/28/2023]
Abstract
Neurodegeneration refers to the selective and progressive loss-of-function and atrophy of neurons, and is present in disorders such as Alzheimer's, Huntington's, and Parkinson's disease. Although each disease presents with a unique pattern of neurodegeneration, and subsequent disease phenotype, increasing evidence implicates alterations in energy usage as a shared and core feature in the onset and progression of these disorders. Indeed, disturbances in energy metabolism may contribute to the vulnerability of neurons to apoptosis. In this review we will outline these disturbances in glucose metabolism, and how fatty acids are able to compensate for this impairment in energy production in neurodegenerative disorders. We will also highlight underlying mechanisms that could contribute to these alterations in energy metabolism. A greater understanding of these metabolism-neurodegeneration processes could lead to improved treatment options for neurodegenerative disease patients.
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Affiliation(s)
- Tanya S McDonald
- School of Biomedical Sciences, Faculty of Medicine, The
University of Queensland, St. Lucia, Australia
| | - Titaya Lerskiatiphanich
- School of Biomedical Sciences, Faculty of Medicine, The
University of Queensland, St. Lucia, Australia
| | - Trent M Woodruff
- School of Biomedical Sciences, Faculty of Medicine, The
University of Queensland, St. Lucia, Australia
- Queensland Brain Institute, The University of Queensland, St.
Lucia, Australia
| | - Pamela A McCombe
- Centre for Clinical Research, Faculty of Medicine, The
University of Queensland, St. Lucia, Australia
- Department of Neurology, Royal Brisbane & Women’s Hospital,
Herston, Australia
| | - John D Lee
- School of Biomedical Sciences, Faculty of Medicine, The
University of Queensland, St. Lucia, Australia
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8
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Manfready RA, Goetz CG, Keshavarzian A. Intestinal microbiota and neuroinflammation in Parkinson's disease: At the helm of the gut-brain axis. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2022; 167:81-99. [PMID: 36427960 DOI: 10.1016/bs.irn.2022.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Emerging data suggest that disrupted intestinal microbiota, or dysbiosis, may be responsible for multiple features of Parkinson's disease (PD), from initiation, to progression, to therapeutic response. We have progressed greatly in our understanding of microbial signatures associated with PD, and have gained important insights into how dysbiosis and intestinal permeability promote neurodegeneration through neuroinflammation and Lewy body formation. These insights underscore the potential of microbiota-directed therapies, which include dietary, pharmacologic, and lifestyle interventions.
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Affiliation(s)
- Richard A Manfready
- Department of Internal Medicine, Division of Digestive Diseases and Nutrition, Rush University Medical Center, Chicago, IL, United States
| | - Christopher G Goetz
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States
| | - Ali Keshavarzian
- Department of Internal Medicine, Division of Digestive Diseases and Nutrition, Rush University Medical Center, Chicago, IL, United States; Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, IL, United States.
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9
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Fathi M, Vakili K, Yaghoobpoor S, Qadirifard MS, Kosari M, Naghsh N, Asgari taei A, Klegeris A, Dehghani M, Bahrami A, Taheri H, Mohamadkhani A, Hajibeygi R, Rezaei Tavirani M, Sayehmiri F. Pre-clinical Studies Identifying Molecular Pathways of Neuroinflammation in Parkinson's Disease: A Systematic Review. Front Aging Neurosci 2022; 14:855776. [PMID: 35912090 PMCID: PMC9327618 DOI: 10.3389/fnagi.2022.855776] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 05/23/2022] [Indexed: 12/09/2022] Open
Abstract
Parkinson's disease (PD), the second most common neurodegenerative disorder, is characterized by neuroinflammation, formation of Lewy bodies, and progressive loss of dopaminergic neurons in the substantia nigra of the brain. In this review, we summarize evidence obtained by animal studies demonstrating neuroinflammation as one of the central pathogenetic mechanisms of PD. We also focus on the protein factors that initiate the development of PD and other neurodegenerative diseases. Our targeted literature search identified 40 pre-clinical in vivo and in vitro studies written in English. Nuclear factor kappa B (NF-kB) pathway is demonstrated as a common mechanism engaged by neurotoxins such as 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and 6-hydroxydopamine (6-OHDA), as well as the bacterial lipopolysaccharide (LPS). The α-synuclein protein, which plays a prominent role in PD neuropathology, may also contribute to neuroinflammation by activating mast cells. Meanwhile, 6-OHDA models of PD identify microsomal prostaglandin E synthase-1 (mPGES-1) as one of the contributors to neuroinflammatory processes in this model. Immune responses are used by the central nervous system to fight and remove pathogens; however, hyperactivated and prolonged immune responses can lead to a harmful neuroinflammatory state, which is one of the key mechanisms in the pathogenesis of PD.
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Affiliation(s)
- Mobina Fathi
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kimia Vakili
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shirin Yaghoobpoor
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Sadegh Qadirifard
- Department of Nursing and Midwifery, Islamic Azad University, Tehran, Iran
- Department of Nursing, Garmsar Branch, Islamic Azad University, Garmsar, Iran
| | - Mohammadreza Kosari
- The First Clinical College, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Navid Naghsh
- Department of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Afsaneh Asgari taei
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Andis Klegeris
- Department of Biology, Faculty of Science, University of British Columbia Okanagan Campus, Kelowna, BC, Canada
| | - Mina Dehghani
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ashkan Bahrami
- Faculty of Medicine, Kashan University of Medical Science, Kashan, Iran
| | - Hamed Taheri
- Dental School, Kazan Federal University, Kazan, Russia
| | - Ashraf Mohamadkhani
- Digestive Disease Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramtin Hajibeygi
- Department of Cardiology, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mostafa Rezaei Tavirani
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Mostafa Rezaei Tavirani
| | - Fatemeh Sayehmiri
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Fatemeh Sayehmiri
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10
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Lim HS, Park G. Resilin, an insect-derived elastomeric protein, protects dopaminergic neurons in Parkinson disease models. Neurosci Lett 2022; 781:136667. [DOI: 10.1016/j.neulet.2022.136667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/12/2022] [Accepted: 04/26/2022] [Indexed: 10/18/2022]
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11
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Pereira MCL, Boese AC, Murad R, Yin J, Hamblin MH, Lee JP. Reduced dopaminergic neuron degeneration and global transcriptional changes in Parkinson's disease mouse brains engrafted with human neural stems during the early disease stage. Exp Neurol 2022; 352:114042. [PMID: 35271839 DOI: 10.1016/j.expneurol.2022.114042] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/16/2022] [Accepted: 03/03/2022] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Current stem cell therapies for Parkinson's disease (PD) focus on a neurorestorative approach that aims to repair the CNS during the symptomatic phase. However, the pleiotropic and supportive effects of human neural stem cells (hNSCs) may make them effective for PD treatment during the disease's earlier stages. In the current study, we investigated the therapeutic effects of transplanting hNSCs during the early stages of PD development when most dopaminergic neurons are still present and before symptoms appear. Previous studies on hNSCs in Parkinson's disease focus on the substantia nigra and its immediate surroundings, but other brain structures are affected in PD as well. Here, we investigated the therapeutic effects of hNSCs on the entire PD-afflicted brain transcriptome using RNA sequencing (RNA-seq). METHODS PD was induced with a single intranasal infusion of 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP) and hNSCs were transplanted unilaterally into the striatum one week later. The timepoint for hNSC transplantation coincided with upregulation of endogenous proinflammatory cytokines in the CNS, which play a role in stem cell migration. At 3 weeks post-transplantation (4 weeks post-MPTP), we assessed motor symptoms through behavioral tests, quantified dopaminergic neurons in the substantia nigra, and performed global transcriptional profiling to understand the mechanism underlying the effect of hNSCs on dopaminergic neuron degeneration. RESULTS We found that early hNSC engraftment mitigated motor symptoms induced by MPTP, and also reduced MPTP-induced loss of dopaminergic neurons. In this study, we uniquely presented the first comprehensive analysis of the effect of hNSC transplantation on the transcriptional profiling of PD mouse brains showing decreased expression of 249 and increased expression of 200 genes. These include genes implicated in mitochondrial bioenergetics, proteostasis, and other signaling pathways associated with improved PD outcome following hNSC transplantation. CONCLUSION These findings indicate that NSC transplantation during the asymptomatic phase of PD may limit or halt the progression of this neurodegenerative disorder. Transcriptional profiling of hNSC-engrafted PD mouse brains provides mechanistic insight that could lead to novel approaches to ameliorating degeneration of dopaminergic neurons and improving behavioral dysfunction in PD.
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Affiliation(s)
- Marcia C L Pereira
- Department of Physiology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Austin C Boese
- Department of Physiology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Rabi Murad
- Bioinformatics, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Jun Yin
- Bioinformatics, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Milton H Hamblin
- Tulane University Health Sciences Center, Tulane University, New Orleans, LA 70112, USA
| | - Jean-Pyo Lee
- Department of Physiology, Tulane University School of Medicine, New Orleans, LA 70112, USA.
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12
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van Rensburg D, Lindeque Z, Harvey BH, Steyn SF. Reviewing the mitochondrial dysfunction paradigm in rodent models as platforms for neuropsychiatric disease research. Mitochondrion 2022; 64:82-102. [DOI: 10.1016/j.mito.2022.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/22/2022] [Accepted: 03/15/2022] [Indexed: 12/19/2022]
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13
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Huang R, Gao Y, Chen J, Duan Q, He P, Zhang J, Huang H, Zhang Q, Ma G, Zhang Y, Nie K, Wang L. TGR5 agonist INT-777 alleviates inflammatory neurodegeneration in parkinson’s disease mouse model by modulating mitochondrial dynamics in microglia. Neuroscience 2022; 490:100-119. [DOI: 10.1016/j.neuroscience.2022.02.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/16/2022] [Accepted: 02/25/2022] [Indexed: 11/24/2022]
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14
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Chang EES, Ho PWL, Liu HF, Pang SYY, Leung CT, Malki Y, Choi ZYK, Ramsden DB, Ho SL. LRRK2 mutant knock-in mouse models: therapeutic relevance in Parkinson's disease. Transl Neurodegener 2022; 11:10. [PMID: 35152914 PMCID: PMC8842874 DOI: 10.1186/s40035-022-00285-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 01/26/2022] [Indexed: 12/24/2022] Open
Abstract
Mutations in the leucine-rich repeat kinase 2 gene (LRRK2) are one of the most frequent genetic causes of both familial and sporadic Parkinson's disease (PD). Mounting evidence has demonstrated pathological similarities between LRRK2-associated PD (LRRK2-PD) and sporadic PD, suggesting that LRRK2 is a potential disease modulator and a therapeutic target in PD. LRRK2 mutant knock-in (KI) mouse models display subtle alterations in pathological aspects that mirror early-stage PD, including increased susceptibility of nigrostriatal neurotransmission, development of motor and non-motor symptoms, mitochondrial and autophagy-lysosomal defects and synucleinopathies. This review provides a rationale for the use of LRRK2 KI mice to investigate the LRRK2-mediated pathogenesis of PD and implications from current findings from different LRRK2 KI mouse models, and ultimately discusses the therapeutic potentials against LRRK2-associated pathologies in PD.
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Affiliation(s)
- Eunice Eun Seo Chang
- Division of Neurology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pok Fu Lam, Hong Kong, China
| | - Philip Wing-Lok Ho
- Division of Neurology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pok Fu Lam, Hong Kong, China.
| | - Hui-Fang Liu
- Division of Neurology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pok Fu Lam, Hong Kong, China
| | - Shirley Yin-Yu Pang
- Division of Neurology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pok Fu Lam, Hong Kong, China
| | - Chi-Ting Leung
- Division of Neurology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pok Fu Lam, Hong Kong, China
| | - Yasine Malki
- Division of Neurology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pok Fu Lam, Hong Kong, China
| | - Zoe Yuen-Kiu Choi
- Division of Neurology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pok Fu Lam, Hong Kong, China
| | - David Boyer Ramsden
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Shu-Leong Ho
- Division of Neurology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pok Fu Lam, Hong Kong, China.
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15
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AlShimemeri S, Di Luca DG, Fox SH. MPTP Parkinsonism and Implications for Understanding Parkinson's Disease. Mov Disord Clin Pract 2022; 9:42-47. [PMID: 35005064 DOI: 10.1002/mdc3.13344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/16/2021] [Accepted: 08/26/2021] [Indexed: 12/26/2022] Open
Affiliation(s)
- Sohaila AlShimemeri
- The Edmond J. Safra Program in Parkinson Disease, Toronto Western Hospital Toronto Ontario Canada.,Krembil Brain Institute, University Health Network Toronto Ontario Canada.,Division of Neurology University of Toronto Toronto Ontario Canada.,King Saud University Riyadh Saudi Arabia
| | - Daniel G Di Luca
- The Edmond J. Safra Program in Parkinson Disease, Toronto Western Hospital Toronto Ontario Canada.,Krembil Brain Institute, University Health Network Toronto Ontario Canada.,Division of Neurology University of Toronto Toronto Ontario Canada
| | - Susan H Fox
- The Edmond J. Safra Program in Parkinson Disease, Toronto Western Hospital Toronto Ontario Canada.,Krembil Brain Institute, University Health Network Toronto Ontario Canada.,Division of Neurology University of Toronto Toronto Ontario Canada
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16
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Li Q, Mo J, Xiong B, Liao Q, Chen Y, Wang Y, Xing S, He S, Lyu W, Zhang N, Sun H. Discovery of Resorcinol-Based Polycyclic Structures as Tyrosinase Inhibitors for Treatment of Parkinson's Disease. ACS Chem Neurosci 2022; 13:81-96. [PMID: 34882402 DOI: 10.1021/acschemneuro.1c00560] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Tyrosinase is involved in the synthesis of neuromelanin in the substantia nigra, which is closely correlated with the pathogenesis of Parkinson's disease. Herein, we identified S05014 (l-Tyr, IC50 = 6.25 ± 1.43 nM; l-Dopa, IC50 = 0.64 ± 0.40 μM) as a highly effective tyrosinase inhibitor. It could inhibit the tyrosinase function from different origins and decrease the expression of tyrosinase. S05014 presented good medication safety and inhibited melanogenesis in a dose-dependent manner. Moreover, as a resorcinol derivative, S05014 could scavenge the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical and significantly reduce the overproduction of LPS-induced reactive oxidative species (ROS), indicating its antioxidative profile. S05014 exhibited an excellent neuroprotective effect against methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) impairment in vitro and could remarkably alleviate movement abnormalities and exploratory activities in vivo. Altogether, S05014 is considered as a promising inhibitor for tyrosinase, melanogenesis, and oxidative stress and has great potential to be utilized in anti-Parkinsonian syndrome. From this point of view, tyrosinase inhibition has been further confirmed to be a novel strategy to improve locomotor capacity and treat Parkinson's disease.
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Affiliation(s)
- Qi Li
- Department of Medical Pharmacy, School of Basic Medicine, Qingdao University, Qingdao 266071, People’s Republic of China
| | - Jun Mo
- ZJU-ENS Joint Laboratory of Medicinal Chemistry, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People’s Republic of China
| | - Baichen Xiong
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Qinghong Liao
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Ying Chen
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Yuanyuan Wang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Shuaishuai Xing
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Siyu He
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, People’s Republic of China
| | - Weiping Lyu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, People’s Republic of China
| | - Ning Zhang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
| | - Haopeng Sun
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People’s Republic of China
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17
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Terán MDM, Pérez Visñuk D, Savoy G, de Moreno de LeBlanc A, LeBlanc JG. Neuroprotective effect of thiamine-producing lactic acid bacteria in a murine Parkinsonian model. Food Funct 2022; 13:8056-8067. [DOI: 10.1039/d2fo01195f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by deterioration and loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc), resulting in motor deficits. Many studies have...
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18
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Rauchová H. Coenzyme Q10 effects in neurological diseases. Physiol Res 2021. [DOI: 10.33549//physiolres.934712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Coenzyme Q10 (CoQ10), a lipophilic substituted benzoquinone, is present in animal and plant cells. It is endogenously synthetized in every cell and involved in a variety of cellular processes. CoQ10 is an obligatory component of the respiratory chain in inner mitochondrial membrane. In addition, the presence of CoQ10 in all cellular membranes and in blood. It is the only endogenous lipid antioxidant. Moreover, it is an essential factor for uncoupling protein and controls the permeability transition pore in mitochondria. It also participates in extramitochondrial electron transport and controls membrane physicochemical properties. CoQ10 effects on gene expression might affect the overall metabolism. Primary changes in the energetic and antioxidant functions can explain its remedial effects. CoQ10 supplementation is safe and well-tolerated, even at high doses. CoQ10 does not cause any serious adverse effects in humans or experimental animals. New preparations of CoQ10 that are less hydrophobic and structural derivatives, like idebenone and MitoQ, are being developed to increase absorption and tissue distribution. The review aims to summarize clinical and experimental effects of CoQ10 supplementations in some neurological diseases such as migraine, Parkinson´s disease, Huntington´s disease, Alzheimer´s disease, amyotrophic lateral sclerosis, Friedreich´s ataxia or multiple sclerosis. Cardiovascular hypertension was included because of its central mechanisms controlling blood pressure in the brainstem rostral ventrolateral medulla and hypothalamic paraventricular nucleus. In conclusion, it seems reasonable to recommend CoQ10 as adjunct to conventional therapy in some cases. However, sometimes CoQ10 supplementations are more efficient in animal models of diseases than in human patients (e.g. Parkinson´s disease) or rather vague (e.g. Friedreich´s ataxia or amyotrophic lateral sclerosis).
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Affiliation(s)
- H Rauchová
- Institute of Physiology Czech Academy of Sciences, Prague, Czech Republic.
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19
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Kalyn M, Ekker M. Cerebroventricular Microinjections of MPTP on Adult Zebrafish Induces Dopaminergic Neuronal Death, Mitochondrial Fragmentation, and Sensorimotor Impairments. Front Neurosci 2021; 15:718244. [PMID: 34512252 PMCID: PMC8432913 DOI: 10.3389/fnins.2021.718244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/26/2021] [Indexed: 11/21/2022] Open
Abstract
Mitochondria are dynamic organelles that mediate the energetic supply to cells and mitigate oxidative stress through the intricate balance of fission and fusion. Mitochondrial dysfunction is a prominent feature within Parkinson disease (PD) etiologies. To date, there have been conflicting studies of neurotoxin impact on dopaminergic cell death, mitochondrial function and behavioral impairment using adult zebrafish. Here, we performed cerebroventricular microinjections (CVMIs) of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on adult transgenic zebrafish that resulted in significant reductions in dopaminergic neurons within the telencephalon and olfactory bulbs (OB) of Tg(dat:eGFP) fish. Visualization of mCherry and mitochondrial gene expression analysis in Tg(dat:tom20 MLS:mCherry) fish reveal that MPTP induces mitochondrial fragmentation in dopaminergic neurons and the activation of the pink1/parkin pathway involved mitophagy. Moreover, the loss of dopaminergic neurons translated into a transient locomotor and olfactory phenotype. Taken together, these data can contribute to a better understanding of the mitochondrial impact on dopaminergic survivability.
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Affiliation(s)
- Michael Kalyn
- Department of Biology, Faculty of Science, University of Ottawa, Ottawa, ON, Canada
| | - Marc Ekker
- Department of Biology, Faculty of Science, University of Ottawa, Ottawa, ON, Canada
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20
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Genome-wide screen identifies curli amyloid fibril as a bacterial component promoting host neurodegeneration. Proc Natl Acad Sci U S A 2021; 118:2106504118. [PMID: 34413194 DOI: 10.1073/pnas.2106504118] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Growing evidence indicates that gut microbiota play a critical role in regulating the progression of neurodegenerative diseases such as Parkinson's disease. The molecular mechanism underlying such microbe-host interaction is unclear. In this study, by feeding Caenorhabditis elegans expressing human α-syn with Escherichia coli knockout mutants, we conducted a genome-wide screen to identify bacterial genes that promote host neurodegeneration. The screen yielded 38 genes that fall into several genetic pathways including curli formation, lipopolysaccharide assembly, and adenosylcobalamin synthesis among others. We then focused on the curli amyloid fibril and found that genetically deleting or pharmacologically inhibiting the curli major subunit CsgA in E. coli reduced α-syn-induced neuronal death, restored mitochondrial health, and improved neuronal functions. CsgA secreted by the bacteria colocalized with α-syn inside neurons and promoted α-syn aggregation through cross-seeding. Similarly, curli also promoted neurodegeneration in C. elegans models of Alzheimer's disease, amyotrophic lateral sclerosis, and Huntington's disease and in human neuroblastoma cells.
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21
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Bai L, Yan F, Deng R, Gu R, Zhang X, Bai J. Thioredoxin-1 Rescues MPP +/MPTP-Induced Ferroptosis by Increasing Glutathione Peroxidase 4. Mol Neurobiol 2021; 58:3187-3197. [PMID: 33634378 DOI: 10.1007/s12035-021-02320-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 02/03/2021] [Indexed: 12/30/2022]
Abstract
Parkinson's disease (PD), a common neurodegenerative disease, is typically associated with the loss of dopaminergic neuron in the substantia nigra pars compacta (SNpc). Ferroptosis is a newly identified cell death, which associated with iron accumulation, glutathione (GSH) depletion, lipid peroxidation formation, reactive oxygen species (ROS) accumulation, and glutathione peroxidase 4 (GPX4) reduction. It has been reported that ferroptosis is linked with PD.Thioredoxin-1 (Trx-1) is a redox regulating protein and plays various roles in regulating the activity of transcription factors and inhibiting apoptosis. However, whether Trx-1 plays the role in regulating ferroptosis involved in PD is still unknown. Our present study showed that 1-methyl-4-phenylpyridinium (MPP+) decreased cell viability, GPX4, and Trx-1, which were reversed by Ferrostatin-1 (Fer-1) in PC 12 cells and SH-SY5Y cells. Moreover, the decreased GPX4 and GSH, and increased ROS were inhibited by Fer-1 and Trx-1 overexpression. We further repeated that behavior deficits resulted from 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) were improved in Trx-1 overexpression transgenic mice. Trx-1 reversed the decreases of GPX4 and tyrosine hydroxylase (TH) induced by MPTP in the substantia nigra pars compacta (SNpc). Our results suggest that Trx-1 inhibits ferroptosis in PD through regulating GPX4 and GSH.
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Affiliation(s)
- Liping Bai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Fang Yan
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Ruhua Deng
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Rou Gu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Xianwen Zhang
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Jie Bai
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China.
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22
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Karuppagounder SS, Uthaythas S, Govindarajulu M, Ramesh S, Parameshwaran K, Dhanasekaran M. Caffeine, a natural methylxanthine nutraceutical, exerts dopaminergic neuroprotection. Neurochem Int 2021; 148:105066. [PMID: 34004240 DOI: 10.1016/j.neuint.2021.105066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 04/29/2021] [Accepted: 05/02/2021] [Indexed: 10/21/2022]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder that affects more than 10 million people worldwide. Oxidative stress and mitochondrial dysfunction play a significant role in altering the homeostasis of energy production and free radical generation. Current PD therapies are focused on reducing the cardinal symptoms rather than preventing disease progression in the patients. Adenosine A2A receptor (A2A R) antagonist (Istradephylline) combined with levodopa shows a promising therapy for PD. In animal studies, caffeine administration showed to improve motor functions and neuroprotective effect in the neurons. Caffeine is probably the most extensively used psychoactive substance. In this current study, we investigated the neuroprotective effect of caffeine against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neurodegeneration. Here, we demonstrate that caffeine improves behavioral and neurotransmitter recovery against MPTP-induced toxicity. Caffeine restores endogenous antioxidant levels and suppresses neuroinflammation. Our finding suggests that the blockage of A2AR is a promising disease-modifying therapy for PD. Target engagement strategies could be more beneficial in preventing disease progression rather than symptomatic reliefs in PD patients.
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Affiliation(s)
- Senthilkumar S Karuppagounder
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA.
| | - Subramaniam Uthaythas
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Manoj Govindarajulu
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Sindhu Ramesh
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Koodeswaran Parameshwaran
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Muralikrishnan Dhanasekaran
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA.
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Saminathan H, Ghosh A, Zhang D, Song C, Jin H, Anantharam V, Kanthasamy A, Kanthasamy AG. Fyn Kinase-Mediated PKCδ Y311 Phosphorylation Induces Dopaminergic Degeneration in Cell Culture and Animal Models: Implications for the Identification of a New Pharmacological Target for Parkinson's Disease. Front Pharmacol 2021; 12:631375. [PMID: 33995031 PMCID: PMC8113680 DOI: 10.3389/fphar.2021.631375] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 04/09/2021] [Indexed: 12/25/2022] Open
Abstract
Oxidative stress, neuroinflammation and apoptosis are some of the key etiological factors responsible for dopamin(DA)ergic degeneration during Parkinson's disease (PD), yet the downstream molecular mechanisms underlying neurodegeneration are largely unknown. Recently, a genome-wide association study revealed the FYN gene to be associated with PD, suggesting that Fyn kinase could be a pharmacological target for PD. In this study, we report that Fyn-mediated PKCδ tyrosine (Y311) phosphorylation is a key event preceding its proteolytic activation in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) model of Parkinsonism. MPP+/MPTP induced Fyn kinase activation in N27 DAergic neuronal cells and the mouse substantia nigra. PKCδ-Y311 phosphorylation by activated Fyn initiates the apoptotic caspase-signaling cascade during DAergic degeneration. Pharmacological attenuation of Fyn activity protected DAergic neurons from MPP+-induced degeneration in primary mesencephalic neuronal cultures. We further employed Fyn wild-type and Fyn knockout (KO) mice to confirm whether Fyn is a valid pharmacological target of DAergic neurodegeneration. Primary mesencephalic neurons from Fyn KO mice were greatly protected from MPP+-induced DAergic cell death, neurite loss and DA reuptake loss. Furthermore, Fyn KO mice were significantly protected from MPTP-induced PKCδ-Y311 phosphorylation, behavioral deficits and nigral DAergic degeneration. This study thus unveils a mechanism by which Fyn regulates PKCδ's pro-apoptotic function and DAergic degeneration. Pharmacological inhibitors directed at Fyn activation could prove to be a novel therapeutic target in the delay or halting of selective DAergic degeneration during PD.
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Affiliation(s)
| | | | | | | | | | | | - Arthi Kanthasamy
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA, United States
| | - Anumantha G. Kanthasamy
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA, United States
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Subrahmanian N, LaVoie MJ. Is there a special relationship between complex I activity and nigral neuronal loss in Parkinson's disease? A critical reappraisal. Brain Res 2021; 1767:147434. [PMID: 33745923 PMCID: PMC9520341 DOI: 10.1016/j.brainres.2021.147434] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/25/2021] [Accepted: 03/12/2021] [Indexed: 12/21/2022]
Abstract
Parkinson’s disease (PD) is a progressive neurodegenerative disease manifesting both motor and non-motor symptoms. The motor features are generally ascribed to the selective loss of dopamine neurons within the substantia nigra pars compacta. While the precise etiology of PD remains elusive, multiple genetic and environmental elements have emerged as contributing factors. The discovery of MPTP-induced parkinsonism directed intense inquiry towards mitochondrial pathways, with a specific focus on mitochondrial complex I. Consisting of more than 40 subunits, complex I is the first enzyme of the electron transport chain that is required for mitochondrial ATP production. In this review, we present a critical analysis of studies assessing the prevalence and specificity of mitochondrial complex I deficiency in PD. In addition, we take the novel view of incorporating the features of genetically-defined bona fide complex I disorders and the prevalence of nigral involvement in such cases. Through this innovative bi-directional view, we consider both complex I changes in a disease of the substantia nigra and nigral changes in diseases of complex I. We assess the strength of association between nigral cell loss and complex I deficits, as well as the oft under-appreciated heterogeneity of complex I deficiency disorders and the variability of the PD data.
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Affiliation(s)
- Nitya Subrahmanian
- Department of Neurology, University of Florida, Gainesville, FL 32610, USA
| | - Matthew J LaVoie
- Department of Neurology, University of Florida, Gainesville, FL 32610, USA.
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25
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Hor SL, Teoh SL, Lim WL. Plant Polyphenols as Neuroprotective Agents in Parkinson's Disease Targeting Oxidative Stress. Curr Drug Targets 2021; 21:458-476. [PMID: 31625473 DOI: 10.2174/1389450120666191017120505] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/26/2019] [Accepted: 09/26/2019] [Indexed: 12/15/2022]
Abstract
Parkinson's disease (PD) is the second most prevalent progressive neurodegenerative disorder characterized by the degeneration of dopaminergic neurons in the human midbrain. Various ongoing research studies are competing to understand the pathology of PD and elucidate the mechanisms underlying neurodegeneration. Current pharmacological treatments primarily focused on improving dopamine metabolism in PD patients, despite the side effects of long-term usage. In recent years, it is recognized that oxidative stress-mediated pathways lead to neurodegeneration in the brain, which is associated with the pathophysiology of PD. The importance of oxidative stress is often less emphasized when developing potential therapeutic approaches. Natural plant antioxidants have been shown to mediate the oxidative stress-induced effects in PD, which has gained considerable attention in both in vitro and in vivo studies. Yet, clinical trials on natural polyphenol compounds are limited, restricting the potential use of these compounds as an alternative treatment for PD. Therefore, this review provides an understanding of the oxidative stress-induced effects in PD by elucidating the underlying events contributing to oxidative stress and explore the potential use of polyphenols in improving the oxidative status in PD. Preclinical findings have supported the potential of polyphenols in providing neuroprotection against oxidative stress-induced toxicity in PD. However, limiting factors, such as safety and bioavailability of polyphenols, warrant further investigations so as to make them the potential target for clinical applications in the treatment and management of PD.
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Affiliation(s)
- Suet Lee Hor
- Department of Biological Sciences, School of Science and Technology, Sunway University, 47500 Selangor, Malaysia
| | - Seong Lin Teoh
- Department of Anatomy, Universiti Kebangsaan Malaysia Medical Centre, 56000 Kuala Lumpur, Malaysia
| | - Wei Ling Lim
- Department of Biological Sciences, School of Science and Technology, Sunway University, 47500 Selangor, Malaysia
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Melnik BC. Synergistic Effects of Milk-Derived Exosomes and Galactose on α-Synuclein Pathology in Parkinson's Disease and Type 2 Diabetes Mellitus. Int J Mol Sci 2021; 22:1059. [PMID: 33494388 PMCID: PMC7865729 DOI: 10.3390/ijms22031059] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/14/2021] [Accepted: 01/19/2021] [Indexed: 12/11/2022] Open
Abstract
Epidemiological studies associate milk consumption with an increased risk of Parkinson's disease (PD) and type 2 diabetes mellitus (T2D). PD is an α-synucleinopathy associated with mitochondrial dysfunction, oxidative stress, deficient lysosomal clearance of α-synuclein (α-syn) and aggregation of misfolded α-syn. In T2D, α-syn promotes co-aggregation with islet amyloid polypeptide in pancreatic β-cells. Prion-like vagal nerve-mediated propagation of exosomal α-syn from the gut to the brain and pancreatic islets apparently link both pathologies. Exosomes are critical transmitters of α-syn from cell to cell especially under conditions of compromised autophagy. This review provides translational evidence that milk exosomes (MEX) disturb α-syn homeostasis. MEX are taken up by intestinal epithelial cells and accumulate in the brain after oral administration to mice. The potential uptake of MEX miRNA-148a and miRNA-21 by enteroendocrine cells in the gut, dopaminergic neurons in substantia nigra and pancreatic β-cells may enhance miRNA-148a/DNMT1-dependent overexpression of α-syn and impair miRNA-148a/PPARGC1A- and miRNA-21/LAMP2A-dependent autophagy driving both diseases. MiRNA-148a- and galactose-induced mitochondrial oxidative stress activate c-Abl-mediated aggregation of α-syn which is exported by exosome release. Via the vagal nerve and/or systemic exosomes, toxic α-syn may spread to dopaminergic neurons and pancreatic β-cells linking the pathogenesis of PD and T2D.
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Affiliation(s)
- Bodo C Melnik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, D-49076 Osnabrück, Germany
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Ibrahim KS, El-Sayed EM. Beneficial Effects of Coconut Oil in Treatment of Parkinson’s Disease. NEUROPHYSIOLOGY+ 2020. [DOI: 10.1007/s11062-020-09866-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Howell RD, Dominguez-Lopez S, Ocañas SR, Freeman WM, Beckstead MJ. Female mice are resilient to age-related decline of substantia nigra dopamine neuron firing parameters. Neurobiol Aging 2020; 95:195-204. [PMID: 32846275 DOI: 10.1016/j.neurobiolaging.2020.07.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 06/03/2020] [Accepted: 07/25/2020] [Indexed: 02/06/2023]
Abstract
Degeneration of substantia nigra pars compacta dopamine neurons is a central feature in the pathology of Parkinson's disease, which is characterized by progressive loss of motor and cognitive functions. The largest risk factors for Parkinson's disease are age and sex; most cases occur after age 60 and males have nearly twice the incidence as females. Preclinical work has scarcely considered the influence of these 2 factors to disease risk and presentation. Here, we observed a progressive decline in dopamine neuron firing activity in male C57BL/6 mice by 18 months of age, while dopamine neurons from females remained largely unaffected. This was accompanied by increased mRNA expression of PINK1 in both males and females, and PARK2 primarily in males, both of which have been linked to Parkinson's. Since the declining cell properties were accompanied by only slight decreases in locomotion in both sexes, it is likely that these age-related impairments in males represent a vulnerability to further insults that could predispose the neurons to neurodegenerative processes such as in Parkinson's.
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Affiliation(s)
- Rebecca D Howell
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK; Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Sergio Dominguez-Lopez
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK
| | - Sarah R Ocañas
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK; Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK
| | - Willard M Freeman
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Michael J Beckstead
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK.
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Sathe AG, Tuite P, Chen C, Ma Y, Chen W, Cloyd J, Low WC, Steer CJ, Lee BY, Zhu XH, Coles LD. Pharmacokinetics, Safety, and Tolerability of Orally Administered Ursodeoxycholic Acid in Patients With Parkinson's Disease-A Pilot Study. J Clin Pharmacol 2020; 60:744-750. [PMID: 32052462 PMCID: PMC7245554 DOI: 10.1002/jcph.1575] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/06/2019] [Indexed: 12/14/2022]
Abstract
Mitochondrial dysfunction is implicated in the pathogenesis of Parkinson's disease. Preliminary data have shown lower brain adenosine triphosphate (ATP) levels in Parkinson's disease versus age-matched healthy controls. Ursodeoxycholic acid (UDCA) may improve impaired mitochondrial function. Our objective was to evaluate UDCA tolerability, pharmacokinetics, and its effect on brain bioenergetics in individuals with Parkinson's disease. An open-label, prospective, multiple-ascending-dose study of oral UDCA in 5 individuals with Parkinson's disease was completed. A blood safety panel, plasma concentrations of UDCA and UDCA conjugates, and brain ATP levels were measured before and after therapy (week 1: 15 mg/kg/day; week 2: 30 mg/kg/day; and weeks 3-6: 50 mg/kg/day). UDCA and conjugates were measured using liquid chromatography-mass spectrometry. ATP levels and ATPase activity were measured using 7-Tesla 31 P magnetic resonance spectroscopy. Secondary measures included the Unified Parkinson's Disease Rating Scale and Montreal Cognitive Assessment. UDCA was generally well tolerated. The most frequent adverse event was gastrointestinal discomfort, rated by subjects as mild to moderate. Noncompartmental pharmacokinetic analysis resulted in (mean ± standard deviation) a maximum concentration of 8749 ± 2840 ng/mL and half-life of 2.1 ± 0.71 hr. Magnetic resonance spectroscopy data were obtained in 3 individuals with Parkinson's disease and showed modest increases in ATP and decreases in ATPase activity. Changes in Unified Parkinson's Disease Rating Scale (parts I-IV) and Montreal Cognitive Assessment scores (mean ± standard deviation) were -4.6 ± 6.4 and 2 ± 1.7, respectively. This is the first report of UDCA use in individuals with Parkinson's disease. Its pharmacokinetics are variable, and at high doses it appears reasonably well tolerated. Our findings warrant additional studies of its effect on brain bioenergetics.
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Affiliation(s)
- Abhishek G. Sathe
- Center for Orphan Drug Research and Department of Experimental and Clinical Pharmacology, College of Pharmacy, Minneapolis, Minnesota, USA
| | - Paul Tuite
- Department of Neurology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Chi Chen
- Department of Food Science and Nutrition, College of Food, Agricultural and Natural Resource Sciences, University of Minnesota, St. Paul, Minnesota, USA
| | - Yiwei Ma
- Department of Food Science and Nutrition, College of Food, Agricultural and Natural Resource Sciences, University of Minnesota, St. Paul, Minnesota, USA
| | - Wei Chen
- Center for Magnetic Resonance Research, Department of Radiology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - James Cloyd
- Center for Orphan Drug Research and Department of Experimental and Clinical Pharmacology, College of Pharmacy, Minneapolis, Minnesota, USA
| | - Walter C. Low
- Department of Neurosurgery, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Clifford J. Steer
- Departments of Medicine and Genetics, Cell Biology and Development, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Byeong-Yeul Lee
- Center for Magnetic Resonance Research, Department of Radiology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Xiao-Hong Zhu
- Center for Magnetic Resonance Research, Department of Radiology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lisa D. Coles
- Center for Orphan Drug Research and Department of Experimental and Clinical Pharmacology, College of Pharmacy, Minneapolis, Minnesota, USA
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Monzio Compagnoni G, Di Fonzo A, Corti S, Comi GP, Bresolin N, Masliah E. The Role of Mitochondria in Neurodegenerative Diseases: the Lesson from Alzheimer's Disease and Parkinson's Disease. Mol Neurobiol 2020; 57:2959-2980. [PMID: 32445085 DOI: 10.1007/s12035-020-01926-1] [Citation(s) in RCA: 172] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 04/22/2020] [Indexed: 12/15/2022]
Abstract
Although the pathogenesis of neurodegenerative diseases is still widely unclear, various mechanisms have been proposed and several pieces of evidence are supportive for an important role of mitochondrial dysfunction. The present review provides a comprehensive and up-to-date overview about the role of mitochondria in the two most common neurodegenerative disorders: Alzheimer's disease (AD) and Parkinson's disease (PD). Mitochondrial involvement in AD is supported by clinical features like reduced glucose and oxygen brain metabolism and by numerous microscopic and molecular findings, including altered mitochondrial morphology, impaired respiratory chain function, and altered mitochondrial DNA. Furthermore, amyloid pathology and mitochondrial dysfunction seem to be bi-directionally correlated. Mitochondria have an even more remarkable role in PD. Several hints show that respiratory chain activity, in particular complex I, is impaired in the disease. Mitochondrial DNA alterations, involving deletions, point mutations, depletion, and altered maintenance, have been described. Mutations in genes directly implicated in mitochondrial functioning (like Parkin and PINK1) are responsible for rare genetic forms of the disease. A close connection between alpha-synuclein accumulation and mitochondrial dysfunction has been observed. Finally, mitochondria are involved also in atypical parkinsonisms, in particular multiple system atrophy. The available knowledge is still not sufficient to clearly state whether mitochondrial dysfunction plays a primary role in the very initial stages of these diseases or is secondary to other phenomena. However, the presented data strongly support the hypothesis that whatever the initial cause of neurodegeneration is, mitochondrial impairment has a critical role in maintaining and fostering the neurodegenerative process.
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Affiliation(s)
- Giacomo Monzio Compagnoni
- IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy. .,Department of Neurology, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy. .,Department of Neurology, Khurana Laboratory, Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
| | - Alessio Di Fonzo
- IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Stefania Corti
- IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, Neuroscience Section, Dino Ferrari Center, University of Milan, Milan, Italy
| | - Giacomo P Comi
- IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, Neuroscience Section, Dino Ferrari Center, University of Milan, Milan, Italy
| | - Nereo Bresolin
- IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, Neuroscience Section, Dino Ferrari Center, University of Milan, Milan, Italy
| | - Eliezer Masliah
- Division of Neuroscience and Laboratory of Neurogenetics, National Institute on Aging, National Institute of Health, Bethesda, MD, USA
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31
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Li P, Song C. Potential treatment of Parkinson’s disease with omega-3 polyunsaturated fatty acids. Nutr Neurosci 2020; 25:180-191. [DOI: 10.1080/1028415x.2020.1735143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Peng Li
- Research Institute for Marine Drugs and Nutrition, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, People’s Republic of China
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, People’s Republic of China
| | - Cai Song
- Research Institute for Marine Drugs and Nutrition, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, People’s Republic of China
- Marine Medicine Research and Development Center of Shenzhen Institutes of Guangdong Ocean University, Shenzhen, People’s Republic of China
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Autophagy as a Cellular Stress Response Mechanism in the Nervous System. J Mol Biol 2020; 432:2560-2588. [PMID: 31962122 DOI: 10.1016/j.jmb.2020.01.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/11/2019] [Accepted: 01/10/2020] [Indexed: 12/13/2022]
Abstract
Cells of an organism face with various types of insults during their lifetime. Exposure to toxins, metabolic problems, ischaemia/reperfusion, physical trauma, genetic diseases, neurodegenerative diseases are among the conditions that trigger cellular stress responses. In this context, autophagy is one of the mechanisms that supports cell survival under stressful conditions. Autophagic vesicle engulfs the cargo and transports it to lysosome for degradation and turnover. As such, autophagy eliminates abnormal proteins, clears damaged organelles, limits oxidative stress and helps to improve metabolic balance. Nervous system cells and particularly postmitotic neurons are highly sensitive to a spectrum of insults, and autophagy emerges as one of the key stress response mechanism, ensuring health and survival of these vulnerable cell types. In this review, we will overview mechanisms through which cells cope with stress, and how these stress responses regulate autophagy, with a special focus on the nervous system.
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Comprehensive Analysis of Neurotoxin-Induced Ablation of Dopaminergic Neurons in Zebrafish Larvae. Biomedicines 2019; 8:biomedicines8010001. [PMID: 31905670 PMCID: PMC7168159 DOI: 10.3390/biomedicines8010001] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/24/2019] [Accepted: 12/25/2019] [Indexed: 12/12/2022] Open
Abstract
Neurotoxin exposure of zebrafish larvae has been used to mimic a Parkinson’s disease (PD) phenotype and to facilitate high-throughput drug screening. However, the vulnerability of zebrafish to various neurotoxins was shown to be variable. Here, we provide a direct comparison of ablative effectiveness in order to identify the optimal neurotoxin-mediated dopaminergic (DAnergic) neuronal death in larval zebrafish. Transgenic zebrafish, Tg(dat:eGFP), were exposed to different concentrations of the neurotoxins MPTP, MPP+, paraquat, 6-OHDA, and rotenone for four days, starting at three days post-fertilization. The LC50 of each respective neurotoxin concentration was determined. Confocal live imaging on Tg(dat:eGFP) showed that MPTP, MPP+, and rotenone caused comparable DAnergic cell loss in the ventral diencephalon (vDC) region while, paraquat and 6-OHDA caused fewer losses of DAnergic cells. These results were further supported by respective gene expression analyses of dat, th, and p53. Importantly, the loss of DAnergic cells from exposure to MPTP, MPP+, and rotenone impacted larval locomotor function. MPTP induced the largest motor deficit, but this was accompanied by the most severe morphological impairment. We conclude that, of the tested neurotoxins, MPP+ recapitulates a substantial degree of DAnergic ablation and slight locomotor perturbations without systemic defects indicative of a Parkinsonian phenotype.
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Deletion of the Creatine Transporter (Slc6a8) in Dopaminergic Neurons Leads to Hyperactivity in Mice. J Mol Neurosci 2019; 70:102-111. [PMID: 31520365 DOI: 10.1007/s12031-019-01405-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 08/30/2019] [Indexed: 12/27/2022]
Abstract
The lack of cerebral creatine (Cr) causes intellectual disability and epilepsy. In addition, a significant portion of individuals with Cr transporter (Crt) deficiency (CTD), the leading cause of cerebral Cr deficiency syndromes (CCDS), are diagnosed with attention-deficit hyperactivity disorder. While the neurological effects of CTD are clear, the mechanisms that underlie these deficits are unknown. Part of this is due to the heterogenous nature of the brain and the unique metabolic demands of specific neuronal systems. Of particular interest related to Cr physiology are dopaminergic neurons, as many CCDS patients have ADHD and Cr has been implicated in dopamine-associated neurodegenerative disorders, such as Parkinson's and Huntington's diseases. The purpose of this study was to examine the effect of a loss of the Slc6a8 (Crt) gene in dopamine transporter (Slc6a3; DAT) expressing cells on locomotor activity and motor function as the mice age. Floxed Slc6a8 (Slc6a8flox) mice were mated to DATIREScre expressing mice to generate DAT-specific Slc6a8 knockouts (dCrt-/y). Locomotor activity, spontaneous activity, and performance in the challenging beam test were evaluated monthly in dCrt-/y and control (Slc6a8flox) mice from 3 to 12 months of age. dCrt-/y mice were hyperactive compared with controls throughout testing. In addition, dCrt-/y mice showed increased rearing and hindlimb steps in the spontaneous activity test. Latency to cross the narrow bridge was increased in dCrt-/y mice while foot slips were unchanged. Taken together, these data suggest that the lack of Cr in dopaminergic neurons causes hyperactivity while sparing motor function.
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Vidyadhara DJ, Lee JE, Chandra SS. Role of the endolysosomal system in Parkinson's disease. J Neurochem 2019; 150:487-506. [PMID: 31287913 PMCID: PMC6707858 DOI: 10.1111/jnc.14820] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 07/01/2019] [Accepted: 07/03/2019] [Indexed: 12/13/2022]
Abstract
Parkinson's disease (PD) is one of the most common neurodegenerative disorders, affecting 1-1.5% of the total population. While progress has been made in understanding the neurodegenerative mechanisms that lead to cell death in late stages of PD, mechanisms for early, causal pathogenic events are still elusive. Recent developments in PD genetics increasingly point at endolysosomal (E-L) system dysfunction as the early pathomechanism and key pathway affected in PD. Clathrin-mediated synaptic endocytosis, an integral part of the neuronal E-L system, is probably the main early target as evident in auxilin, RME-8, and synaptojanin-1 mutations that cause PD. Autophagy, another important pathway in the E-L system, is crucial in maintaining proteostasis and a healthy mitochondrial pool, especially in neurons considering their inability to divide and requirement to function an entire life-time. PINK1 and Parkin mutations severely perturb autophagy of dysfunctional mitochondria (mitophagy), both in the cell body and synaptic terminals of dopaminergic neurons, leading to PD. Endolysosomal sorting and trafficking is also crucial, which is complex in multi-compartmentalized neurons. VPS35 and VPS13C mutations noted in PD target these mechanisms. Mutations in GBA comprise the most common risk factor for PD and initiate pathology by compromising lysosomal function. This is also the case for ATP13A2 mutations. Interestingly, α-synuclein and LRRK2, key proteins involved in PD, function in different steps of the E-L pathway and target their components to induce disease pathogenesis. In this review, we discuss these E-L system genes that are linked to PD and how their dysfunction results in PD pathogenesis. This article is part of the Special Issue "Synuclein".
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Affiliation(s)
- D J Vidyadhara
- Department of Neurology, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Neuroscience, Yale University School of Medicine, New Haven, Connecticut, USA
| | - John E Lee
- Department of Neurology, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Neuroscience, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Sreeganga S Chandra
- Department of Neurology, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Neuroscience, Yale University School of Medicine, New Haven, Connecticut, USA
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Current Progress of Mitochondrial Quality Control Pathways Underlying the Pathogenesis of Parkinson's Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4578462. [PMID: 31485291 PMCID: PMC6710741 DOI: 10.1155/2019/4578462] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/05/2019] [Accepted: 07/11/2019] [Indexed: 12/15/2022]
Abstract
Parkinson's disease (PD), clinically characterized by motor and nonmotor symptoms, is a common progressive and multisystem neurodegenerative disorder, which is caused by both genetic and environmental risk factors. The main pathological features of PD are the loss of dopaminergic (DA) neurons and the accumulation of alpha-synuclein (α-syn) in the residual DA neurons in the substantia nigra pars compacta (SNpc). In recent years, substantial progress has been made in discovering the genetic factors of PD. In particular, a total of 19 PD-causing genes have been unraveled, among which some members have been regarded to be related to mitochondrial dysfunction. Mitochondria are key regulators of cellular metabolic activity and are critical for many important cellular processes including energy metabolism and even cell death. Their normal function is basically maintained by the mitochondrial quality control (MQC) mechanism. Accordingly, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), a kind of neurotoxin, exerts its neurotoxic effects at least partially by producing its toxic metabolite, namely, 1-methyl-4-phenylpyridine (MPP+), which in turn causes mitochondrial dysfunction by inhibiting complex I and mimicking the key features of PD pathogenesis. This review focused on three main aspects of the MQC signaling pathways, that is, mitochondrial biogenesis, mitochondrial dynamics, and mitochondrial autophagy; hence, it demonstrates in detail how genetic and environmental factors result in PD pathogenesis by interfering with MQC pathways, thereby hopefully contributing to the discovery of novel potential therapeutic targets for PD.
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37
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Cardiac sympathetic innervation in the MPTP non-human primate model of Parkinson disease. Clin Auton Res 2019; 29:415-425. [PMID: 31338635 DOI: 10.1007/s10286-019-00620-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 07/13/2019] [Indexed: 12/28/2022]
Abstract
PURPOSE Systemic administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) induces degeneration of dopaminergic neurons and reproduces the motor features of Parkinson disease (PD); however, the effect of MPTP on extranigral structures has been poorly studied. The aim of this research was to study the cardiac sympathetic innervation of control and MPTP-treated monkeys in order to describe the influence of MPTP toxicity on cardiac tissue. METHODS Eight monkeys were included in the study and divided into two groups, four monkeys serving as controls and four forming the MPTP group. Sections from the anterior left ventricle were immunohistochemically examined to characterize the sympathetic fibers of cardiac tissue. The intensity of immunoreactivity in the nerve fibers was quantitatively analyzed using ImageJ software. RESULTS As occurs in PD, the sympathetic peripheral nervous system is affected in MPTP-treated monkeys. The percentage of tyrosine hydroxylase immunoreactive fibers in the entire fascicle area was markedly lower in the MPTP group (24.23%) than the control group (35.27%) (p < 0.05), with preservation of neurofilament immunoreactive fibers in the epicardium of MPTP-treated monkeys. Alpha-synuclein deposits were observed in sections of the anterior left ventricle of MPTP-treated monkeys but not in control animals, whereas phosphorylated synuclein aggregates were not observed in either controls or MPTP-treated monkeys. CONCLUSION The peripheral autonomic system can also be affected by neurotoxins that specifically inhibit mitochondrial complex I.
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Shirshin EA, Yakimov BP, Darvin ME, Omelyanenko NP, Rodionov SA, Gurfinkel YI, Lademann J, Fadeev VV, Priezzhev AV. Label-Free Multiphoton Microscopy: The Origin of Fluorophores and Capabilities for Analyzing Biochemical Processes. BIOCHEMISTRY (MOSCOW) 2019; 84:S69-S88. [PMID: 31213196 DOI: 10.1134/s0006297919140050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Multiphoton microscopy (MPM) is a method of molecular imaging and specifically of intravital imaging that is characterized by high spatial resolution in combination with a greater depth of penetration into the tissue. MPM is a multimodal method based on detection of nonlinear optical signals - multiphoton fluorescence and optical harmonics - and also allows imaging with the use of the parameters of fluorescence decay kinetics. This review describes and discusses photophysical processes within major reporter molecules used in MPM with endogenous contrasts and summarizes several modern experiments that illustrate the capabilities of label-free MPM for molecular imaging of biochemical processes in connective tissue and cells.
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Affiliation(s)
- E A Shirshin
- Lomonosov Moscow State University, Faculty of Physics, Moscow, 119991, Russia. .,Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, 108840, Moscow, Russia
| | - B P Yakimov
- Lomonosov Moscow State University, Faculty of Physics, Moscow, 119991, Russia
| | - M E Darvin
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, 10117, Germany
| | - N P Omelyanenko
- N. N. Priorov National Medical Research Center of Traumatology and Orthopaedics, Moscow, 127299, Russia
| | - S A Rodionov
- N. N. Priorov National Medical Research Center of Traumatology and Orthopaedics, Moscow, 127299, Russia
| | - Y I Gurfinkel
- Medical Scientific-Educational Center of Lomonosov Moscow State University, Moscow, 119192, Russia
| | - J Lademann
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, 10117, Germany
| | - V V Fadeev
- Lomonosov Moscow State University, Faculty of Physics, Moscow, 119991, Russia
| | - A V Priezzhev
- Lomonosov Moscow State University, Faculty of Physics, Moscow, 119991, Russia
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39
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Dolgacheva LP, Berezhnov AV, Fedotova EI, Zinchenko VP, Abramov AY. Role of DJ-1 in the mechanism of pathogenesis of Parkinson's disease. J Bioenerg Biomembr 2019; 51:175-188. [PMID: 31054074 PMCID: PMC6531411 DOI: 10.1007/s10863-019-09798-4] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 02/24/2019] [Indexed: 12/13/2022]
Abstract
DJ-1 protein has multiple specific mechanisms to protect dopaminergic neurons against neurodegeneration in Parkinson's disease. Wild type DJ-1 can acts as oxidative stress sensor and as an antioxidant. DJ-1 exhibits the properties of molecular chaperone, protease, glyoxalase, transcriptional regulator that protects mitochondria from oxidative stress. DJ-1 increases the expression of two mitochondrial uncoupling proteins (UCP 4 and UCP5), that decrease mitochondrial membrane potential and leads to the suppression of ROS production, optimizes of a number of mitochondrial functions, and is regarded as protection for the neuronal cell survival. We discuss also the stabilizing interaction of DJ-1 with the mitochondrial Bcl-xL protein, which regulates the activity of (Inositol trisphosphate receptor) IP3R, prevents the cytochrome c release from mitochondria and inhibits the apoptosis activation. Upon oxidative stress DJ-1 is able to regulate various transcription factors including nuclear factor Nrf2, PI3K/PKB, and p53 signal pathways. Stress-activated transcription factor Nrf2 regulates the pathways to protect cells against oxidative stress and metabolic pathways initiating the NADPH and ATP production. DJ-1 induces the Nrf2 dissociation from its inhibitor Keap1 (Kelch-like ECH-associated protein 1), promoting Nrf2 nuclear translocation and binding to antioxidant response elements. DJ-1 is shown to be a co-activator of the transcription factor NF-kB. Under nitrosative stress, DJ-1 may regulate PI3K/PKB signaling through PTEN transnitrosylation, which leads to inhibition of phosphatase activity. DJ-1 has a complex modulating effect on the p53 pathway: one side DJ-1 directly binds to p53 to restore its transcriptional activity and on the other hand DJ-1 can stimulate deacylation and suppress p53 transcriptional activity. The ability of the DJ-1 to induce activation of different transcriptional factors and change redox balance protect neurons against aggregation of α-synuclein and oligomer-induced neurodegeneration.
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Affiliation(s)
- Ludmila P Dolgacheva
- Institute of Cell Biophysics Russian Academy of Sciences, Pushchino, 142290, Russia.
| | - Alexey V Berezhnov
- Institute of Cell Biophysics Russian Academy of Sciences, Pushchino, 142290, Russia
| | - Evgeniya I Fedotova
- Institute of Cell Biophysics Russian Academy of Sciences, Pushchino, 142290, Russia
| | - Valery P Zinchenko
- Institute of Cell Biophysics Russian Academy of Sciences, Pushchino, 142290, Russia
| | - Andrey Y Abramov
- Department of Clinical and Movement Neurosciences, UCL Institute of Neurology, London, WC1N 3BG, UK.
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Hedayati N, Naeini MB, Nezami A, Hosseinzadeh H, Wallace Hayes A, Hosseini S, Imenshahidi M, Karimi G. Protective effect of lycopene against chemical and natural toxins: A review. Biofactors 2019; 45:5-23. [PMID: 30339717 DOI: 10.1002/biof.1458] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 09/02/2018] [Accepted: 09/06/2018] [Indexed: 12/25/2022]
Abstract
People are exposed to a number of environmental, occupational, and therapeutic toxic agents which may be natural or man made. These hazardous substances may manifest as direct side effects on the function of organs or indirectly induced alteration of gene expression, cancer-associated metabolic pathways, and/or alter homeostasis. Lycopene, as a one of the most potent antioxidant, is found in fruits and vegetables. High-intake of lycopene has been shown to be effective in decreasing the risk of both natural toxins including mycotoxins, bacterial toxins, and chemical toxins including heavy metals, pesticides as well as herbicides. Recently, there is growing attention in understanding the mechanisms of the phytochemicals and carotenoids as antioxidative, antiapoptotic, radical scavenging, and chelating agents and their roles in the modulation of inflammatory pathways. This review summarizes available data from several recent studies about lycopene and its role against chemical and natural toxicants. © 2018 BioFactors, 45(1):5-23, 2019.
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Affiliation(s)
- Narges Hedayati
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehri Bemani Naeini
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Nezami
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - A Wallace Hayes
- University of South Florida College of Public Health, Tampa, FL, USA
- Michigan State University Institute for Integrative Toxicology, East Lansing, MI, USA
| | - Sarasadat Hosseini
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Imenshahidi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gholamreza Karimi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Chandran R, Kumar M, Kesavan L, Jacob RS, Gunasekaran S, Lakshmi S, Sadasivan C, Omkumar R. Cellular calcium signaling in the aging brain. J Chem Neuroanat 2019; 95:95-114. [DOI: 10.1016/j.jchemneu.2017.11.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 09/03/2017] [Accepted: 11/07/2017] [Indexed: 12/21/2022]
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Dou F, Chu X, Zhang B, Liang L, Lu G, Ding J, Chen S. EriB targeted inhibition of microglia activity attenuates MPP + induced DA neuron injury through the NF-κB signaling pathway. Mol Brain 2018; 11:75. [PMID: 30563578 PMCID: PMC6299497 DOI: 10.1186/s13041-018-0418-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 11/30/2018] [Indexed: 12/15/2022] Open
Abstract
Accumulating evidence indicates that microglia activation is associated with an increased risk for developing Parkinson’s disease (PD). With the progressive and selective degeneration of dopaminergic (DA) neurons, proinflammatory cytokines are elevated in the substantia nigra (SN) of PD patients. Thus, anti-inflammation has become one of the therapeutic strategies of PD. Eriocalyxin B (EriB), a diterpenoid isolated from Isodoneriocalyx, was previously reported to have anti-inflammatory effects. MPTP mouse model and MPP+ cell model were prepared to detect the role of EriB in regulating microglia activation and neuron protection. Midbrain tissue and primary cultured microglia and neuron were used to examine microglia activation and neuron damage by immunofluorescence, real-time PCR, western-blot and Elisa assay. Open field activity test was to evaluate the changes of behavioral activity in MPTP-induced PD mouse model. EriB was efficacious in protecting DA neurons by inhibiting microglia activation in PD mice model. Treatment with EriB led to amelioration of disordered sports of PD mice model, which correlated with reduced microglia-associated inflammation and damaged DA neurons. EriB treatment abolished MPP+ induced microglia activation damages to DA neurons in a microglia and DA neurons co-culture system. The underlying mechanism of EriB-induced protective effects involved inhibition of microglia associated proinflammatory cytokines production through the phenotypic shift of microglial cells as well as activator of transcription and nuclear factor-κB (NF-κB) signaling pathways. These findings demonstrate that EriB exerts potent anti-inflammatory effects through selective modulation of microglia activation by targeting NF-κB signaling pathways, thus exerting the protective effect against on MPP+-induced DA neurons injury. This study may provide insights into the promising therapeutic role of EriB for PD.
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Affiliation(s)
- Fangfang Dou
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xinkun Chu
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Bei Zhang
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Liang Liang
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Guoqiang Lu
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jianqing Ding
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Shengdi Chen
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Zhou Y, Zhu J, Lv Y, Song C, Ding J, Xiao M, Lu M, Hu G. Kir6.2 Deficiency Promotes Mesencephalic Neural Precursor Cell Differentiation via Regulating miR-133b/GDNF in a Parkinson's Disease Mouse Model. Mol Neurobiol 2018; 55:8550-8562. [PMID: 29564810 DOI: 10.1007/s12035-018-1005-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 03/07/2018] [Indexed: 12/17/2022]
Abstract
The loss of dopaminergic (DA) neurons in the substantia nigra (SN) is a major feature in the pathology of Parkinson's disease (PD). Using neural stem or progenitor cells (NSC/NPCs), the prospect of replacing the missing or damaged DA neurons is very attractive for PD therapy. However, little is known about the endogenous mechanisms and molecular pathways regulating the NSC/NPC proliferation and differentiation in the development of PD. Herein, using Kir6.2 knockout (Kir6.2-/-) mice, we observed that genetic deficiency of Kir6.2 exacerbated the loss of SN DA neurons relatively early in a chronic MPTP/probenecid (MPTP/p) injection course, but rescued the damage of neurons 7 days after the last MPTP/p injection. Meanwhile, we found that Kir6.2 knockout predominantly increased the differentiation of nuclear receptor-related 1 (Nurr1+) precursors to DA neurons, indicating that Kir6.2 deficiency could activate an endogenous self-repair process. Furthermore, we demonstrated in vivo and in vitro that lack of Kir6.2 promoted neuronal differentiation via inhibiting the downregulation of glia cell line-derived neurotrophic factor (GDNF), which negatively related to the level of microRNA-133b. Notably, we revealed that Gdnf is a target gene of miR-133b and transfection of miR-133b could attenuate the enhancement of neural precursor differentiation induced by Kir6.2 deficiency. Collectively, we clarify for the first time that Kir6.2/K-ATP channel functions as a novel endogenous negative regulator of NPC differentiation, and provide a promising neuroprotective target for PD therapeutics.
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MESH Headings
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine
- Animals
- Cell Differentiation
- Cell Proliferation
- Disease Models, Animal
- Dopaminergic Neurons/metabolism
- Down-Regulation/genetics
- Glial Cell Line-Derived Neurotrophic Factor/genetics
- Glial Cell Line-Derived Neurotrophic Factor/metabolism
- Glycogen Synthase Kinase 3 beta/metabolism
- Homeodomain Proteins/metabolism
- Mesencephalon/pathology
- Mice, Inbred C57BL
- Mice, Knockout
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Models, Biological
- Neural Stem Cells/metabolism
- Nuclear Receptor Subfamily 4, Group A, Member 2/metabolism
- Parkinson Disease/genetics
- Parkinson Disease/pathology
- Phosphorylation
- Potassium Channels, Inwardly Rectifying/deficiency
- Potassium Channels, Inwardly Rectifying/metabolism
- Probenecid
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Transcription Factors/metabolism
- alpha-Synuclein/metabolism
- beta Catenin/metabolism
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Affiliation(s)
- Yan Zhou
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
- Department of Clinical Pharmacy, The First People's Hospital, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Jialei Zhu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Yang Lv
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Chenghuan Song
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Jianhua Ding
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Ming Xiao
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Ming Lu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, Jiangsu, China.
- Neuroprotective Drug Discovery Key Laboratory, Department of Pharmacology, Nanjing Medical University, 101 Longmian Road, Nanjing, Jiangsu, 211166, China.
| | - Gang Hu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, Jiangsu, China.
- Department of Pharmacology, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, Jiangsu, 210023, China.
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Wang P, Fernandez-Sanz C, Wang W, Sheu SS. Why don't mice lacking the mitochondrial Ca 2+ uniporter experience an energy crisis? J Physiol 2018; 598:1307-1326. [PMID: 30218574 DOI: 10.1113/jp276636] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/28/2018] [Indexed: 01/15/2023] Open
Abstract
Current dogma holds that the heart balances energy demand and supply effectively and sustainably by sequestering enough Ca2+ into mitochondria during heartbeats to stimulate metabolic enzymes in the tricarboxylic acid (TCA) cycle and electron transport chain (ETC). This process is called excitation-contraction-bioenergetics (ECB) coupling. Recent breakthroughs in identifying the mitochondrial Ca2+ uniporter (MCU) and its associated proteins have opened up new windows for interrogating the molecular mechanisms of mitochondrial Ca2+ homeostasis regulation and its role in ECB coupling. Despite remarkable progress made in the past 7 years, it has been surprising, almost disappointing, that germline MCU deficiency in mice with certain genetic background yields viable pups, and knockout of the MCU in adult heart does not cause lethality. Moreover, MCU deficiency results in few adverse phenotypes, normal performance, and preserved bioenergetics in the heart at baseline. In this review, we briefly assess the existing literature on mitochondrial Ca2+ homeostasis regulation and then we consider possible explanations for why MCU-deficient mice are spared from energy crises under physiological conditions. We propose that MCU and/or mitochondrial Ca2+ may have limited ability to set ECB coupling, that other mitochondrial Ca2+ handling mechanisms may play a role, and that extra-mitochondrial Ca2+ may regulate ECB coupling. Since the heart needs to regenerate a significant amount of ATP to assure the perpetuation of heartbeats, multiple mechanisms are likely to work in concert to match energy supply with demand.
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Affiliation(s)
- Pei Wang
- Mitochondria and Metabolism Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Celia Fernandez-Sanz
- Center for Translational Medicine, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Wang Wang
- Mitochondria and Metabolism Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Shey-Shing Sheu
- Center for Translational Medicine, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA
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Surmeier DJ. Determinants of dopaminergic neuron loss in Parkinson's disease. FEBS J 2018; 285:3657-3668. [PMID: 30028088 DOI: 10.1111/febs.14607] [Citation(s) in RCA: 235] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/20/2018] [Accepted: 07/18/2018] [Indexed: 12/11/2022]
Abstract
The cardinal motor symptoms of Parkinson's disease (PD) are caused by the death of dopaminergic neurons in the substantia nigra pars compacta (SNc). Alpha-synuclein (aSYN) pathology and mitochondrial dysfunction have been implicated in PD pathogenesis, but until recently it was unclear why SNc dopaminergic neurons should be particularly vulnerable to these two types of insult. In this brief review, the evidence that SNc dopaminergic neurons have an anatomical, physiological, and biochemical phenotype that predisposes them to mitochondrial dysfunction and synuclein pathology is summarized. The recognition that certain traits may predispose neurons to PD-linked pathology creates translational opportunities for slowing or stopping disease progression.
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Affiliation(s)
- Dalton James Surmeier
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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Singh SS, Rai SN, Birla H, Zahra W, Kumar G, Gedda MR, Tiwari N, Patnaik R, Singh RK, Singh SP. Effect of Chlorogenic Acid Supplementation in MPTP-Intoxicated Mouse. Front Pharmacol 2018; 9:757. [PMID: 30127737 PMCID: PMC6087758 DOI: 10.3389/fphar.2018.00757] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 06/21/2018] [Indexed: 12/12/2022] Open
Abstract
Oxidative stress and neuroinflammation play a key role in dopaminergic (DA) neuronal degeneration, which results in the hindrance of normal ongoing biological processes in the case of Parkinson's disease. As shown in several studies, on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) administration, different behavioral parameters have suggested motor impairment and damage of antioxidant defence. Thus, some specific biological molecules found in medicinal plants can be used to inhibit the DA neuronal degeneration through their antioxidant and anti-inflammatory activities. With this objective, we studied chlorogenic acid (CGA), a naturally occurring polyphenolic compound, for its antioxidant and anti-inflammatory properties in MPTP-intoxicated mice. We observed significant reoccurrence of motor coordination and antioxidant defence on CGA supplementation, which has been in contrast with MPTP-injected mice. Moreover, in the case of CGA-treated mice, the enhanced expression of tyrosine hydroxylase (TH) within the nigrostriatal region has supported its beneficial effect. The activation of glial cells and oxidative stress levels were also estimated using inducible nitric oxide synthase (iNOS) and glial fibrillary acidic protein (GFAP) immunoreactivity within substantia nigra (SN) and striatum of MPTP-injected mice. Administration of CGA has prevented the neuroinflammation in SN by regulating the nuclear factor-κB expression in the MPTP-induced group. The significant release of certain pro-inflammatory mediators such as tumor necrosis factor-α and interleukin (IL)-1β has also been inhibited by CGA with the enhanced expression of anti-inflammatory cytokine IL-10. Moreover, reduced GFAP staining within the nigrostriatal region has supported the fact that CGA has significantly helped in the attenuation of astrocyte activation. Hence, our study has shown that CGA supplementation shows its therapeutic ability by reducing the oxidative stress and neuroinflammation in MPTP-intoxicated mice.
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Affiliation(s)
- Saumitra S. Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Sachchida N. Rai
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Hareram Birla
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Walia Zahra
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Gaurav Kumar
- School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Mallikarjuna R. Gedda
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Neeraj Tiwari
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Ranjana Patnaik
- School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Rakesh K. Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Surya P. Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India,*Correspondence: Surya P. Singh,
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Videira PAQ, Castro-Caldas M. Linking Glycation and Glycosylation With Inflammation and Mitochondrial Dysfunction in Parkinson's Disease. Front Neurosci 2018; 12:381. [PMID: 29930494 PMCID: PMC5999786 DOI: 10.3389/fnins.2018.00381] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/18/2018] [Indexed: 01/08/2023] Open
Abstract
Parkinson’s disease (PD) is the second most common neurodegenerative disorder, affecting about 6.3 million people worldwide. PD is characterized by the progressive degeneration of dopaminergic neurons in the Substantia nigra pars compacta, resulting into severe motor symptoms. The cellular mechanisms underlying dopaminergic cell death in PD are still not fully understood, but mitochondrial dysfunction, oxidative stress and inflammation are strongly implicated in the pathogenesis of both familial and sporadic PD cases. Aberrant post-translational modifications, namely glycation and glycosylation, together with age-dependent insufficient endogenous scavengers and quality control systems, lead to cellular overload of dysfunctional proteins. Such injuries accumulate with time and may lead to mitochondrial dysfunction and exacerbated inflammatory responses, culminating in neuronal cell death. Here, we will discuss how PD-linked protein mutations, aging, impaired quality control mechanisms and sugar metabolism lead to up-regulated abnormal post-translational modifications in proteins. Abnormal glycation and glycosylation seem to be more common than previously thought in PD and may underlie mitochondria-induced oxidative stress and inflammation in a feed-forward mechanism. Moreover, the stress-induced post-translational modifications that directly affect parkin and/or its substrates, deeply impairing its ability to regulate mitochondrial dynamics or to suppress inflammation will also be discussed. Together, these represent still unexplored deleterious mechanisms implicated in neurodegeneration in PD, which may be used for a more in-depth knowledge of the pathogenic mechanisms, or as biomarkers of the disease.
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Affiliation(s)
- Paula A Q Videira
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal.,CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Margarida Castro-Caldas
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal.,Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
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Repici M, Hassanjani M, Maddison DC, Garção P, Cimini S, Patel B, Szegö ÉM, Straatman KR, Lilley KS, Borsello T, Outeiro TF, Panman L, Giorgini F. The Parkinson's Disease-Linked Protein DJ-1 Associates with Cytoplasmic mRNP Granules During Stress and Neurodegeneration. Mol Neurobiol 2018; 56:61-77. [PMID: 29675578 PMCID: PMC6334738 DOI: 10.1007/s12035-018-1084-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/11/2018] [Indexed: 12/22/2022]
Abstract
Mutations in the gene encoding DJ-1 are associated with autosomal recessive forms of Parkinson’s disease (PD). DJ-1 plays a role in protection from oxidative stress, but how it functions as an “upstream” oxidative stress sensor and whether this relates to PD is still unclear. Intriguingly, DJ-1 may act as an RNA binding protein associating with specific mRNA transcripts in the human brain. Moreover, we previously reported that the yeast DJ-1 homolog Hsp31 localizes to stress granules (SGs) after glucose starvation, suggesting a role for DJ-1 in RNA dynamics. Here, we report that DJ-1 interacts with several SG components in mammalian cells and localizes to SGs, as well as P-bodies, upon induction of either osmotic or oxidative stress. By purifying the mRNA associated with DJ-1 in mammalian cells, we detected several transcripts and found that subpopulations of these localize to SGs after stress, suggesting that DJ-1 may target specific mRNAs to mRNP granules. Notably, we find that DJ-1 associates with SGs arising from N-methyl-d-aspartate (NMDA) excitotoxicity in primary neurons and parkinsonism-inducing toxins in dopaminergic cell cultures. Thus, our results indicate that DJ-1 is associated with cytoplasmic RNA granules arising during stress and neurodegeneration, providing a possible link between DJ-1 and RNA dynamics which may be relevant for PD pathogenesis.
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Affiliation(s)
- Mariaelena Repici
- Department of Genetics and Genome Biology, University of Leicester, Leicester, LE1 7RH, UK
| | - Mahdieh Hassanjani
- Department of Genetics and Genome Biology, University of Leicester, Leicester, LE1 7RH, UK
| | - Daniel C Maddison
- Department of Genetics and Genome Biology, University of Leicester, Leicester, LE1 7RH, UK
| | | | - Sara Cimini
- Neuroscience Department, IRCCS-Istituto Di Ricerche Farmacologiche "Mario Negri", Milan, Italy
| | - Bhavini Patel
- Department of Genetics and Genome Biology, University of Leicester, Leicester, LE1 7RH, UK
| | - Éva M Szegö
- Department of Experimental Neurodegeneration, Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Center for Biostructural Imaging of Neurodegeneration (BIN), University Medical Center Göttingen, Waldweg 33, 37073, Göttingen, Germany
| | - Kornelis R Straatman
- Centre for Core Biotechnology Services, University of Leicester, Leicester, LE1 7RH, UK
| | - Kathryn S Lilley
- Cambridge Centre for Proteomics, Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Tiziana Borsello
- Neuroscience Department, IRCCS-Istituto Di Ricerche Farmacologiche "Mario Negri", Milan, Italy.,Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Tiago F Outeiro
- Department of Experimental Neurodegeneration, Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Center for Biostructural Imaging of Neurodegeneration (BIN), University Medical Center Göttingen, Waldweg 33, 37073, Göttingen, Germany.,Max Planck Institute for Experimental Medicine, Göttingen, Germany.,Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
| | - Lia Panman
- MRC Toxicology Unit, Leicester, LE1 9HN, UK
| | - Flaviano Giorgini
- Department of Genetics and Genome Biology, University of Leicester, Leicester, LE1 7RH, UK.
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50
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Moreno-Galarza N, Mendieta L, Palafox-Sánchez V, Herrando-Grabulosa M, Gil C, Limón DI, Aguilera J. Peripheral Administration of Tetanus Toxin Hc Fragment Prevents MPP+ Toxicity In Vivo. Neurotox Res 2018; 34:47-61. [DOI: 10.1007/s12640-017-9853-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 12/08/2017] [Accepted: 12/11/2017] [Indexed: 01/13/2023]
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