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Tong B, Ba Y, Li Z, Yang C, Su K, Qi H, Zhang D, Liu X, Wu Y, Chen Y, Ling J, Zhang J, Yin X, Yu P. Targeting dysregulated lipid metabolism for the treatment of Alzheimer's disease and Parkinson's disease: Current advancements and future prospects. Neurobiol Dis 2024; 196:106505. [PMID: 38642715 DOI: 10.1016/j.nbd.2024.106505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 03/02/2024] [Accepted: 04/14/2024] [Indexed: 04/22/2024] Open
Abstract
Alzheimer's and Parkinson's diseases are two of the most frequent neurological diseases. The clinical features of AD are memory decline and cognitive dysfunction, while PD mainly manifests as motor dysfunction such as limb tremors, muscle rigidity abnormalities, and slow gait. Abnormalities in cholesterol, sphingolipid, and glycerophospholipid metabolism have been demonstrated to directly exacerbate the progression of AD by stimulating Aβ deposition and tau protein tangles. Indirectly, abnormal lipids can increase the burden on brain vasculature, induce insulin resistance, and affect the structure of neuronal cell membranes. Abnormal lipid metabolism leads to PD through inducing accumulation of α-syn, dysfunction of mitochondria and endoplasmic reticulum, and ferroptosis. Great progress has been made in targeting lipid metabolism abnormalities for the treatment of AD and PD in recent years, like metformin, insulin, peroxisome proliferator-activated receptors (PPARs) agonists, and monoclonal antibodies targeting apolipoprotein E (ApoE). This review comprehensively summarizes the involvement of dysregulated lipid metabolism in the pathogenesis of AD and PD, the application of Lipid Monitoring, and emerging lipid regulatory drug targets. A better understanding of the lipidological bases of AD and PD may pave the way for developing effective prevention and treatment methods for neurodegenerative disorders.
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Affiliation(s)
- Bin Tong
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China; School of Ophthalmology and Optometry of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Yaoqi Ba
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China; School of Ophthalmology and Optometry of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Zhengyang Li
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China; The First Clinical Medical College of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Caidi Yang
- The First Clinical Medical College of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Kangtai Su
- The First Clinical Medical College of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Haodong Qi
- The First Clinical Medical College of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Deju Zhang
- Department of Neurology, Affiliated Hospital of Jiujiang University, Jiujiang, China; Center for Clinical Precision Medicine, Jiujiang University, Jiujiang, China; Food and Nutritional Sciences, School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Xiao Liu
- Department of Neurology, Affiliated Hospital of Jiujiang University, Jiujiang, China; Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yuting Wu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Yixuan Chen
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Jitao Ling
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Jing Zhang
- Department of Neurology, Affiliated Hospital of Jiujiang University, Jiujiang, China; Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China.
| | - Xiaoping Yin
- Department of Neurology, Affiliated Hospital of Jiujiang University, Jiujiang, China; Center for Clinical Precision Medicine, Jiujiang University, Jiujiang, China.
| | - Peng Yu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China.
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Liu Z, Sokratian A, Duda AM, Xu E, Stanhope C, Fu A, Strader S, Li H, Yuan Y, Bobay BG, Sipe J, Bai K, Lundgaard I, Liu N, Hernandez B, Bowes Rickman C, Miller SE, West AB. Anionic nanoplastic contaminants promote Parkinson's disease-associated α-synuclein aggregation. Sci Adv 2023; 9:eadi8716. [PMID: 37976362 PMCID: PMC10656074 DOI: 10.1126/sciadv.adi8716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 10/18/2023] [Indexed: 11/19/2023]
Abstract
Recent studies have identified increasing levels of nanoplastic pollution in the environment. Here, we find that anionic nanoplastic contaminants potently precipitate the formation and propagation of α-synuclein protein fibrils through a high-affinity interaction with the amphipathic and non-amyloid component (NAC) domains in α-synuclein. Nanoplastics can internalize in neurons through clathrin-dependent endocytosis, causing a mild lysosomal impairment that slows the degradation of aggregated α-synuclein. In mice, nanoplastics combine with α-synuclein fibrils to exacerbate the spread of α-synuclein pathology across interconnected vulnerable brain regions, including the strong induction of α-synuclein inclusions in dopaminergic neurons in the substantia nigra. These results highlight a potential link for further exploration between nanoplastic pollution and α-synuclein aggregation associated with Parkinson's disease and related dementias.
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Affiliation(s)
- Zhiyong Liu
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Arpine Sokratian
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | | | - Enquan Xu
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Christina Stanhope
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Amber Fu
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Samuel Strader
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Huizhong Li
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Yuan Yuan
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | | | - Joana Sipe
- Department of Civil and Environmental Engineering, Duke University, Durham, NC, USA
| | - Ketty Bai
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Iben Lundgaard
- Department of Experimental Medical Science, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Na Liu
- Department of Experimental Medical Science, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Belinda Hernandez
- Department of Ophthalmology and Cell Biology, Duke University, Durham, NC, USA
| | | | - Sara E. Miller
- Department of Pathology, Duke University, Durham, NC, USA
| | - Andrew B. West
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
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3
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Yang B, Yang Z, Liu H, Qi H. Dynamic modelling and tristability analysis of misfolded α-synuclein degraded via autophagy in Parkinson's disease. Biosystems 2023; 233:105036. [PMID: 37726073 DOI: 10.1016/j.biosystems.2023.105036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/25/2023] [Accepted: 09/15/2023] [Indexed: 09/21/2023]
Abstract
The widely-accepted hallmark pathology of Parkinson's disease (PD) is the presence of Lewy bodies with characteristic abnormal aggregated α-synuclein (αSyn). Growing physiological evidence suggests that there is a pivotal role for the autophagy-lysosome pathway (ALP) in the clearance of misfolded αSyn (αSyn∗). This work establishes a mathematical model for αSyn∗ degradation through the ALP. Qualitative simulations are used to uncover the tristable behavior of αSyn∗, i.e., the lower, medium, and upper steady states, which correspond to the healthy, critical, and disease stages of PD, respectively. Time series and codimension-1 bifurcation analysis suggest that the system shows tristability dynamics. Furthermore, variations in the key parameters influence the tristable dynamic behavior, and the distribution of tristable regions is exhibited more comprehensively in codimension-2 bifurcation diagrams. In addition, robustness analysis demonstrates that tristability is a robust property of the system. These results may be valuable in therapeutic strategies for the prevention and treatment of PD.
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Affiliation(s)
- Bojie Yang
- School of Mathematical Sciences and LMIB, Beihang University, Beijing, 100191, People's Republic of China
| | - Zhuoqin Yang
- School of Mathematical Sciences and LMIB, Beihang University, Beijing, 100191, People's Republic of China.
| | - Heng Liu
- School of Mathematical Sciences and LMIB, Beihang University, Beijing, 100191, People's Republic of China
| | - Hong Qi
- Complex Systems Research Center, Shanxi University, Taiyuan, 030006, People's Republic of China.
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Hou X, Heckman MG, Fiesel FC, Koga S, Soto-Beasley AI, Watzlawik JO, Zhao J, Valentino RR, Johnson PW, White LJ, Quicksall ZS, Reddy JS, Bras J, Guerreiro R, Zhao N, Bu G, Dickson DW, Ross OA, Springer W. Genome-wide association study identifies APOE and ZMIZ1 variants as mitophagy modifiers in Lewy body disease. medRxiv 2023:2023.10.16.23297100. [PMID: 37905059 PMCID: PMC10615013 DOI: 10.1101/2023.10.16.23297100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
The PINK1-PRKN pathway mediates a critical quality control to maintain mitochondrial health and function. Together the kinase-ligase pair identifies and decorate damaged mitochondria with phosphorylated ubiquitin (p-S65-Ub). This selective label serves as the mitophagy tag and facilitates their degradation via autophagy-lysosome system. While complete loss of PINK1 or PRKN function causes early-onset Parkinson disease, much broader mitophagy impairments are emerging across neurodegenerative disorders. We previously found age- and disease-dependent accumulation of p-S65-Ub signal in the hippocampus of autopsy brains with Lewy body disease (LBD). However, the contribution of genetic variation to mitochondrial damage and p-S65-Ub levels remains unknown in LBD cases. To identify novel regulators of PINK1-PRKN mitophagy in LBD, we performed an unbiased genome-wide association study of hippocampal p-S65-Ub level with 1,012 autopsy confirmed LBD samples. Using an established, mostly automated workflow, hippocampal sections were immunostained for p-S65-Ub, scanned, and quantified with unbiased algorithms. Functional validation of the significant hit was performed in animal model and human induced pluripotent stem cells (hiPSCs). We identified a strong association with p-S65-Ub for APOE4 (rs429358; β : 0.50, 95% CI: 0.41 to 0.69; p =8.67x10 -25 ) and a genome-wide significant association for ZMIZ1 (rs6480922; β : -0.33, 95% CI: -0.45 to -0.22; p =1.42x10 -8 ). The increased p-S65-Ub levels in APOE4 -carrier may be mediated by both co-pathology-dependent and -independent mechanisms, which was confirmed in Apoe-targeted replacement mice and hiPSC-derived astrocytes. Intriguingly, ZMIZ1 rs6480922 also significantly associated with increased brain weight and reduced neuropathological burden indicating a potential role as a resilience factor. Our findings nominate novel mitophagy regulators in LBD brain ( ZMIZ1 locus) and highlight a strong association of APOE4 with mitophagy alteration. With APOE4 being the strongest known risk factor for clinical Alzheimer's disease and dementia with Lewy bodies, our findings suggest a common mechanistic link underscoring the importance of mitochondrial quality control.
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Liu Z, Sokratian A, Duda AM, Xu E, Stanhope C, Fu A, Strader S, Li H, Yuan Y, Bobay BG, Sipe J, Bai K, Lundgaard I, Liu N, Hernandez B, Rickman CB, Miller SE, West AB. Anionic Nanoplastic Contaminants Promote Parkinson's Disease-Associated α-Synuclein Aggregation. Res Sq 2023:rs.3.rs-3439102. [PMID: 37886561 PMCID: PMC10602106 DOI: 10.21203/rs.3.rs-3439102/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Recent studies have identified increasing levels of nanoplastic pollution in the environment. Here we find that anionic nanoplastic contaminants potently precipitate the formation and propagation of α-synuclein protein fibrils through a high-affinity interaction with the amphipathic and non-amyloid component (NAC) domains in α-synuclein. Nanoplastics can internalize in neurons through clathrin-dependent endocytosis, causing a mild lysosomal impairment that slows the degradation of aggregated α-synuclein. In mice, nanoplastics combine with α-synuclein fibrils to exacerbate the spread of α-synuclein pathology across interconnected vulnerable brain regions, including the strong induction of α-synuclein inclusions in dopaminergic neurons in the substantia nigra. These results highlight a potential link for further exploration between nanoplastic pollution and α-synuclein aggregation associated with Parkinson's disease and related dementias.
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Affiliation(s)
- Zhiyong Liu
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Arpine Sokratian
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | | | - Enquan Xu
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Christina Stanhope
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Amber Fu
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Samuel Strader
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Huizhong Li
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Yuan Yuan
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | | | - Joana Sipe
- Department of Civil and Environmental Engineering, Duke University, Durham, NC, USA
| | - Ketty Bai
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
| | - Iben Lundgaard
- Department of Experimental Medical Science, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Na Liu
- Department of Experimental Medical Science, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Belinda Hernandez
- Department of Ophthalmology and Cell Biology, Duke University, Durham, NC, USA
| | | | - Sara E Miller
- Department of Pathology, Duke University, Durham, North Carolina, USA
| | - Andrew B. West
- Duke Center for Neurodegeneration and Neurotheraputics, Duke University, Durham, NC, USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
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Hou X, Chen TH, Koga S, Bredenberg JM, Faroqi AH, Delenclos M, Bu G, Wszolek ZK, Carr JA, Ross OA, McLean PJ, Murray ME, Dickson DW, Fiesel FC, Springer W. Alpha-synuclein-associated changes in PINK1-PRKN-mediated mitophagy are disease context dependent. Brain Pathol 2023; 33:e13175. [PMID: 37259617 PMCID: PMC10467041 DOI: 10.1111/bpa.13175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/05/2023] [Indexed: 06/02/2023] Open
Abstract
Alpha-synuclein (αsyn) aggregates are pathological features of several neurodegenerative conditions including Parkinson disease (PD), dementia with Lewy bodies, and multiple system atrophy (MSA). Accumulating evidence suggests that mitochondrial dysfunction and impairments of the autophagic-lysosomal system can contribute to the deposition of αsyn, which in turn may interfere with health and function of these organelles in a potentially vicious cycle. Here we investigated a potential convergence of αsyn with the PINK1-PRKN-mediated mitochondrial autophagy pathway in cell models, αsyn transgenic mice, and human autopsy brain. PINK1 and PRKN identify and selectively label damaged mitochondria with phosphorylated ubiquitin (pS65-Ub) to mark them for degradation (mitophagy). We found that disease-causing multiplications of αsyn resulted in accumulation of the ubiquitin ligase PRKN in cells. This effect could be normalized by starvation-induced autophagy activation and by CRISPR/Cas9-mediated αsyn knockout. Upon acute mitochondrial damage, the increased levels of PRKN protein contributed to an enhanced pS65-Ub response. We further confirmed increased pS65-Ub-immunopositive signals in mouse brain with αsyn overexpression and in postmortem human disease brain. Of note, increased pS65-Ub was associated with neuronal Lewy body-type αsyn pathology, but not glial cytoplasmic inclusions of αsyn as seen in MSA. While our results add another layer of complexity to the crosstalk between αsyn and the PINK1-PRKN pathway, distinct mechanisms may underlie in cells and brain tissue despite similar outcomes. Notwithstanding, our finding suggests that pS65-Ub may be useful as a biomarker to discriminate different synucleinopathies and may serve as a potential therapeutic target for Lewy body disease.
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Affiliation(s)
- Xu Hou
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
| | | | - Shunsuke Koga
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
| | | | - Ayman H. Faroqi
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
- Neuroscience PhD ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
| | | | - Guojun Bu
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
- Neuroscience PhD ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
| | | | - Jonathan A. Carr
- Division of Neurology, Department of Medicine, Faculty of Medicine and Health SciencesStellenbosch UniversityCape TownSouth Africa
| | - Owen A. Ross
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
- Neuroscience PhD ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
| | - Pamela J. McLean
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
- Neuroscience PhD ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
| | - Melissa E. Murray
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
- Neuroscience PhD ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
| | - Dennis W. Dickson
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
- Neuroscience PhD ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
| | - Fabienne C. Fiesel
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
- Neuroscience PhD ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
| | - Wolfdieter Springer
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA
- Neuroscience PhD ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
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7
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Odongo R, Bellur O, Abdik E, Çakır T. Brain-wide transcriptome-based metabolic alterations in Parkinson's disease: human inter-region and human-experimental model correlations. Mol Omics 2023; 19:522-537. [PMID: 36928892 DOI: 10.1039/d2mo00343k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Alterations in brain metabolism are closely associated with the molecular hallmarks of Parkinson's disease (PD). A clear understanding of the main metabolic perturbations in PD is therefore important. Here, we retrospectively analysed the expression of metabolic genes from 34 PD-control post-mortem human brain transcriptome data comparisons from literature, spanning multiple brain regions. We found high metabolic correlations between the Substantia nigra (SN)- and cerebral cortex-derived tissues. Moreover, three clusters of PD patient cohorts were identified based on perturbed metabolic processes in the SN - each characterised by perturbations in (a) bile acid metabolism (b) omega-3 fatty acid metabolism, and (c) lipoic acid and androgen metabolism - metabolic themes not comprehensively addressed in PD. These perturbations were supported by concurrence between transcriptome and proteome changes in the expression patterns for CBR1, ECI2, BDH2, CYP27A1, ALDH1B1, ALDH9A1, ADH5, ALDH7A1, L1CAM, and PLXNB3 genes, providing a valuable resource for drug targeting and diagnosis. Also, we analysed 58 PD-control transcriptome data comparisons from in vivo/in vitro disease models and identified experimental PD models with significant correlations to matched human brain regions. Collectively, our findings suggest metabolic alterations in several brain regions, heterogeneity in metabolic alterations between study cohorts for the SN tissues and the need to optimize current experimental models to advance research on metabolic aspects of PD.
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Affiliation(s)
- Regan Odongo
- Department of Bioengineering, Gebze Technical University, Gebze, Kocaeli, Turkey.
| | - Orhan Bellur
- Department of Bioengineering, Gebze Technical University, Gebze, Kocaeli, Turkey.
| | - Ecehan Abdik
- Department of Bioengineering, Gebze Technical University, Gebze, Kocaeli, Turkey.
| | - Tunahan Çakır
- Department of Bioengineering, Gebze Technical University, Gebze, Kocaeli, Turkey.
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Naren P, Cholkar A, Kamble S, Khan SS, Srivastava S, Madan J, Mehra N, Tiwari V, Singh SB, Khatri DK. Pathological and Therapeutic Advances in Parkinson's Disease: Mitochondria in the Interplay. J Alzheimers Dis 2023; 94:S399-S428. [PMID: 36093711 PMCID: PMC10473111 DOI: 10.3233/jad-220682] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2022] [Indexed: 11/15/2022]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative illness majorly affecting the population between the ages of 55 to 65 years. Progressive dopaminergic neuronal loss and the collective assemblage of misfolded alpha-synuclein in the substantia nigra, remain notable neuro-pathological hallmarks of the disease. Multitudes of mechanistic pathways have been proposed in attempts to unravel the pathogenesis of PD but still, it remains elusive. The convergence of PD pathology is found in organelle dysfunction where mitochondria remain a major contributor. Mitochondrial processes like bioenergetics, mitochondrial dynamics, and mitophagy are under strict regulation by the mitochondrial genome and nuclear genome. These processes aggravate neurodegenerative activities upon alteration through neuroinflammation, oxidative damage, apoptosis, and proteostatic stress. Therefore, the mitochondria have grabbed a central position in the patho-mechanistic exploration of neurodegenerative diseases like PD. The management of PD remains a challenge to physicians to date, due to the variable therapeutic response of patients and the limitation of conventional chemical agents which only offer symptomatic relief with minimal to no disease-modifying effect. This review describes the patho-mechanistic pathways involved in PD not only limited to protein dyshomeostasis and oxidative stress, but explicit attention has been drawn to exploring mechanisms like organelle dysfunction, primarily mitochondria and mitochondrial genome influence, while delineating the newer exploratory targets such as GBA1, GLP, LRRK2, and miRNAs and therapeutic agents targeting them.
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Affiliation(s)
- Padmashri Naren
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Anjali Cholkar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Suchita Kamble
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Sabiya Samim Khan
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Saurabh Srivastava
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, India
| | - Jitender Madan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, India
| | - Neelesh Mehra
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, India
| | - Vinod Tiwari
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (B.H.U.) Varanasi (U.P.), India
| | - Shashi Bala Singh
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Dharmendra Kumar Khatri
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
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Miyajima T, Saito R, Yanagisawa H, Igarashi M, Wu C, Iwamoto T, Eto Y. Characterization of cellular phenotypes in neurons derived from induced pluripotent stem cells of male patients with Fabry disease. J Inherit Metab Dis 2023; 46:143-152. [PMID: 36220782 DOI: 10.1002/jimd.12567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 09/30/2022] [Accepted: 10/10/2022] [Indexed: 01/19/2023]
Abstract
Fabry disease (FD) is an X-linked inherited lysosomal metabolism disorder in which globotriaosylceramide (Gb3) accumulates in various organs resulting from a deficiency in alpha-galactosidase A. The clinical features of FD include progressive impairments of the renal, cardiac, and peripheral nervous systems. In addition, patients with FD often develop neuropsychiatric symptoms, such as depression and dementia, which are believed to be induced by the cellular injury of cerebrovascular and partially neuronal cells due to Gb3 accumulation. Although the analysis of autopsy brain tissue from patients with FD showed no accumulation of Gb3, abnormal deposits of Gb3 were found in the neurons of several brain areas, including the hippocampus. Therefore, in this study, we generated induced pluripotent stem cells (iPSCs) from patients with FD and differentiated them into neuronal cells to investigate pathological and biological changes in the neurons of FD. Neural stem cells (NSCs) and neurons were successfully differentiated from the iPSCs we generated; however, cellular damage and morphological changes were not found in these cells. Immunostaining revealed no Gb3 accumulation in NSCs and neurons. Transmission electron microscopy did not reveal any zebra body-like structures or inclusion bodies, which are characteristic of FD. These results indicated that neuronal cells derived from FD-iPSCs exhibited normal morphology and no Gb3 accumulation. It is likely that more in vivo environment-like cultures are needed for iPSC-derived neurons to reproduce disease-specific features.
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Affiliation(s)
- Takashi Miyajima
- Advanced Clinical Research Center, Southern Tohoku Research Institute for Neuroscience, Kawasaki, Japan
| | - Ryo Saito
- Advanced Clinical Research Center, Southern Tohoku Research Institute for Neuroscience, Kawasaki, Japan
| | - Hiroko Yanagisawa
- Advanced Clinical Research Center, Southern Tohoku Research Institute for Neuroscience, Kawasaki, Japan
| | - Miki Igarashi
- Advanced Clinical Research Center, Southern Tohoku Research Institute for Neuroscience, Kawasaki, Japan
| | - Chen Wu
- Advanced Clinical Research Center, Southern Tohoku Research Institute for Neuroscience, Kawasaki, Japan
| | - Takeo Iwamoto
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshikatsu Eto
- Advanced Clinical Research Center, Southern Tohoku Research Institute for Neuroscience, Kawasaki, Japan
- The Jikei University School of Medicine, Tokyo, Japan
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10
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Peelaerts W, Baekelandt V. ⍺-Synuclein Structural Diversity and the Cellular Environment in ⍺-Synuclein Transmission Models and Humans. Neurotherapeutics 2023; 20:67-82. [PMID: 37052776 PMCID: PMC10119367 DOI: 10.1007/s13311-023-01365-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2023] [Indexed: 04/14/2023] Open
Abstract
Parkinson's disease (PD), dementia with Lewy bodies (DLB), and multiple system atrophy (MSA) are termed synucleinopathies, disorders that are characterized by the intracellular aggregation of the protein ɑ-synuclein. The cellular tropism of synuclein pathology in these syndromes is notably distinct since in the Lewy disorders, PD and DLB, ɑSyn forms aggregates in neurons whereas in MSA ɑSyn forms aggregates in oligodendrocytes. Studies examining ɑSyn pathology in experimental models and in human brain have now identified fibrillar ɑSyn with unique but distinct molecular signatures, suggesting that the structure of these ɑSyn fibrils might be closely tied to their cellular ontogeny. In contrast to the native structural heterogeneity of ɑSyn in vitro, the conformational landscape of fibrillar ɑSyn in human brain and in vivo transmission models appears to be remarkably uniform. Here, we review the studies by which we propose a hypothesis that the cellular host environment might be in part responsible for how ɑSyn filaments assemble into phenotype-specific strains. We postulate that the maturation of ɑSyn strains develops as a function of their in vivo transmission routes and cell-specific risk factors. The impact of the cellular environment on the structural diversity of ɑSyn might have important implications for the design of preclinical studies and their use for the development of ɑSyn-based biomarkers and therapeutic strategies. By combining phenotype-specific fibrils and relevant synucleinopathy transmission models, preclinical models might more closely reflect unique disease phenotypes.
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Affiliation(s)
- Wouter Peelaerts
- Laboratory for Neurobiology and Gene Therapy, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Veerle Baekelandt
- Laboratory for Neurobiology and Gene Therapy, Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
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Kolicheski A, Turcano P, Tamvaka N, McLean PJ, Springer W, Savica R, Ross OA. Early-Onset Parkinson's Disease: Creating the Right Environment for a Genetic Disorder. J Parkinsons Dis 2022; 12:2353-2367. [PMID: 36502340 PMCID: PMC9837689 DOI: 10.3233/jpd-223380] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Parkinson's disease (PD) by its common understanding is a late-onset sporadic movement disorder. However, there is a need to recognize not only the fact that PD pathogenesis expands beyond (or perhaps to) the brain but also that many early-onset patients develop motor signs before the age of 50 years. Indeed, studies have shown that it is likely the protein aggregation observed in the brains of patients with PD precedes the motor symptoms by perhaps a decade. Studies on early-onset forms of PD have shown it to be a heterogeneous disease with multiple genetic and environmental factors determining risk of different forms of disease. Genetic and neuropathological evidence suggests that there are α-synuclein centric forms (e.g., SNCA genomic triplication), and forms that are driven by a breakdown in mitochondrial function and specifically in the process of mitophagy and clearance of damaged mitochondria (e.g., PARKIN and PINK1 recessive loss-of-function mutations). Aligning genetic forms with recognized environmental influences will help better define patients, aid prognosis, and hopefully lead to more accurately targeted clinical trial design. Work is now needed to understand the cross-talk between these two pathomechanisms and determine a sense of independence, it is noted that autopsies studies for both have shown the presence or absence of α-synuclein aggregation. The integration of genetic and environmental data is critical to understand the etiology of early-onset forms of PD and determine how the different pathomechanisms crosstalk.
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Affiliation(s)
- Ana Kolicheski
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Pierpaolo Turcano
- Department of Neurology, Mayo Clinic, Jacksonville, FL, USA,
Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Nicole Tamvaka
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA,
Mayo Graduate School, Neuroscience Track, Mayo Clinic, Jacksonville, FL, USA
| | - Pamela J. McLean
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA,
Mayo Graduate School, Neuroscience Track, Mayo Clinic, Jacksonville, FL, USA
| | - Wolfdieter Springer
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA,
Mayo Graduate School, Neuroscience Track, Mayo Clinic, Jacksonville, FL, USA
| | - Rodolfo Savica
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Owen A. Ross
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA,
Mayo Graduate School, Neuroscience Track, Mayo Clinic, Jacksonville, FL, USA,
Department of Medicine, University College Dublin, Dublin, Ireland,
Department of Clinical Genomics, Mayo Clinic, Jacksonville, FL, USA,Department of Biology, University of NorthFlorida, Jacksonville, FL, USA,Correspondence to: Owen A. Ross, PhD, Department of Neuroscience, Mayo Clinic Jacksonville, 4500 San Pablo Road, Jacksonville, FL 32224, USA. Tel.: +1 904 953 6280; Fax: +1 904 953 7370; E-mail:
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12
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Bi A, Wu J, Huang S, Li Y, Zheng F, Ding J, Dong J, Xiang D, Zeng W. Functional insights from targeted imaging BACE1: the first near-infrared fluorescent probe for Alzheimer's disease diagnosis. Biomater Res 2022; 26:76. [PMID: 36494704 PMCID: PMC9733252 DOI: 10.1186/s40824-022-00320-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/13/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND β-Secretase (BACE1) is the vital enzyme in the pathogenic processes of Alzheimer's disease (AD). However, the development of a powerful tool with sensitivity for BACE1 determination in vivo is a challenge. METHODS A novel NIR fluorescent probe HBAE was synthetized from 2-hydroxy-3-methylbenzaldehyde and 2-amino-benzenethiol by 5 steps. The fluorescence mechanism in the ESIPT systems of HBAE probe was insighted with time-dependent density functional theory (TD-DFT) at the TDPBE0 level with the def2-TZVP approach. The corresponding docking between HBAE and BACE1 (PDB: 5I3Y) was performed through the ducking method by DOCK6.8. Then the BBB permeability of HBAE is verified by transwell orifice plate. 22-month-old male AD-model (5XFAD) mice and age-matched wild-type mice were employed to observe the brain kinetics by intravenous injection. Finally, Immunohistochemistry was performed on the AD brain section to reveal the levels of BACE1 in hippocampus and cortex areas and other regions in AD mice through the brain tissue slices by HBAE. RESULTS The NIR fluorescent probe HBAE was successfully applied in imaging BACE1 in AD model mice. The capability of HBAE in reflecting different level of BACE1 was performed by the specific imaging of the hippocampus region. CONCLUSIONS We reported the first ESIPT near-infrared fluorescence probe HBAE for monitoring endogenous BACE1 in the AD live model mice, thus offering a versatile chemical tool for visualizing in the pathological processes of AD live brains. Remarkably, high resolution images showed the localization of red fluorescence stains in hippocampus of the AD brain. This study provides a promising way for functional insights from protein BACE1 in vivo.
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Affiliation(s)
- Anyao Bi
- grid.216417.70000 0001 0379 7164Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013 PR China ,grid.216417.70000 0001 0379 7164Department of Radiology the Second Xiangya Hospital, Central South University, Changsha, 410078 China
| | - Junyong Wu
- grid.216417.70000 0001 0379 7164Department of Pharmacy the Second Xiangya Hospital, Central South University, Changsha, 410078 China
| | - Shuai Huang
- grid.216417.70000 0001 0379 7164Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013 PR China
| | - Yongjiang Li
- grid.216417.70000 0001 0379 7164Department of Pharmacy the Second Xiangya Hospital, Central South University, Changsha, 410078 China
| | - Fan Zheng
- grid.216417.70000 0001 0379 7164Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013 PR China
| | - Jipeng Ding
- grid.216417.70000 0001 0379 7164Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013 PR China
| | - Jie Dong
- grid.216417.70000 0001 0379 7164Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013 PR China
| | - Daxiong Xiang
- grid.216417.70000 0001 0379 7164Department of Pharmacy the Second Xiangya Hospital, Central South University, Changsha, 410078 China
| | - Wenbin Zeng
- grid.216417.70000 0001 0379 7164Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013 PR China
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Vantaggiato L, Shaba E, Carleo A, Bezzini D, Pannuzzo G, Luddi A, Piomboni P, Bini L, Bianchi L. Neurodegenerative Disorder Risk in Krabbe Disease Carriers. Int J Mol Sci 2022; 23:ijms232113537. [PMID: 36362324 PMCID: PMC9654610 DOI: 10.3390/ijms232113537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/26/2022] [Accepted: 10/30/2022] [Indexed: 11/09/2022] Open
Abstract
Krabbe disease (KD) is a rare autosomal recessive disorder caused by mutations in the galactocerebrosidase gene (GALC). Defective GALC causes aberrant metabolism of galactolipids present almost exclusively in myelin, with consequent demyelinization and neurodegeneration of the central and peripheral nervous system (NS). KD shares some similar features with other neuropathies and heterozygous carriers of GALC mutations are emerging with an increased risk in developing NS disorders. In this work, we set out to identify possible variations in the proteomic profile of KD-carrier brain to identify altered pathways that may imbalance its homeostasis and that may be associated with neurological disorders. The differential analysis performed on whole brains from 33-day-old twitcher (galc −/−), heterozygous (galc +/−), and wild-type mice highlighted the dysregulation of several multifunctional factors in both heterozygous and twitcher mice. Notably, the KD-carrier mouse, despite its normal phenotype, presents the deregulation of vimentin, receptor of activated protein C kinase 1 (RACK1), myelin basic protein (MBP), 2′,3′-cyclic-nucleotide 3′-phosphodiesterase (CNP), transitional endoplasmic reticulum ATPase (VCP), and N-myc downstream regulated gene 1 protein (NDRG1) as well as changes in the ubiquitinated-protein pattern. Our findings suggest the carrier may be affected by dysfunctions classically associated with neurodegeneration: (i) alteration of (mechano) signaling and intracellular trafficking, (ii) a generalized affection of proteostasis and lipid metabolism, with possible defects in myelin composition and turnover, and (iii) mitochondrion and energy supply dysfunctions.
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Affiliation(s)
- Lorenza Vantaggiato
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Enxhi Shaba
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Alfonso Carleo
- Department of Pulmonology, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany
| | - Daiana Bezzini
- Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Giovanna Pannuzzo
- Department of Biochemical and Biotechnological Sciences, Section of Physiology, University of Catania, 95121 Catania, Italy
| | - Alice Luddi
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy
| | - Paola Piomboni
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy
| | - Luca Bini
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, 53100 Siena, Italy
- Correspondence: ; Tel.: +39-0577-234938
| | - Laura Bianchi
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, 53100 Siena, Italy
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Li Y, Zhao P, Zhang Y, Zhen J, Zhao L, Cai Y, Lu Q, Huang G. Fecal-associated microbiome differences between phlegm-dampness constitution and balanced constitution. Journal of Traditional Chinese Medical Sciences 2022. [DOI: 10.1016/j.jtcms.2022.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Abstract
Amyloid formation continues to be a widely studied area because of its association with numerous diseases, such as Alzheimer’s and Parkinson’s diseases. Despite a large body of work on protein aggregation and fibril formation, there are still significant gaps in our understanding of the factors that differentiate toxic amyloid formation in vivo from alternative misfolding pathways. In addition to proteins, amyloid fibrils are often associated in their cellular context with several types of molecule, including carbohydrates, polyanions, and lipids. This review focuses in particular on evidence for the presence of lipids in amyloid fibrils and the routes by which those lipids may become incorporated. Chemical analyses of fibril composition, combined with studies to probe the lipid distribution around fibrils, provide evidence that in some cases, lipids have a strong association with fibrils. In addition, amyloid fibrils formed in the presence of lipids have distinct morphologies and material properties. It is argued that lipids are an integral part of many amyloid deposits in vivo, where their presence has the potential to influence the nucleation, morphology, and mechanical properties of fibrils. The role of lipids in these structures is therefore worthy of further study.
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Hatton C, Ghanem SS, Koss DJ, Abdi IY, Gibbons E, Guerreiro R, Bras J, Walker L, Gelpi E, Heywood W, Outeiro TF, Attems J, McFarland R, Forsyth R, El-Agnaf OM, Erskine D. Prion-like α-synuclein pathology in the brain of infants with Krabbe disease. Brain 2022; 145:1257-1263. [PMID: 34999780 PMCID: PMC9128812 DOI: 10.1093/brain/awac002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/22/2021] [Accepted: 12/10/2021] [Indexed: 11/30/2022] Open
Abstract
Krabbe disease is an infantile neurodegenerative disorder resulting from pathogenic variants in the GALC gene that causes accumulation of the toxic sphingolipid psychosine. GALC variants are also associated with Lewy body diseases, an umbrella term for age-associated neurodegenerative diseases in which the protein α-synuclein aggregates into Lewy bodies. To explore whether α-synuclein in Krabbe disease has pathological similarities to that in Lewy body disease, we performed an observational post-mortem study of Krabbe disease brain tissue (n = 4) compared to infant controls (n = 4) and identified widespread accumulations of α-synuclein. To determine whether α-synuclein in Krabbe disease brain displayed disease-associated pathogenic properties we evaluated its seeding capacity using the real-time quaking-induced conversion assay in two cases for which frozen tissue was available and strikingly identified aggregation into fibrils similar to those observed in Lewy body disease, confirming the prion-like capacity of Krabbe disease-derived α-synuclein. These observations constitute the first report of prion-like α-synuclein in the brain tissue of infants and challenge the putative view that α-synuclein pathology is merely an age-associated phenomenon, instead suggesting it results from alterations to biological pathways, such as sphingolipid metabolism. Our findings have important implications for understanding the mechanisms underlying Lewy body formation in Lewy body disease.
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Affiliation(s)
- Christopher Hatton
- Wellcome Centre for Mitochondrial Research, Claremont Road, Newcastle NE2 4AA, UK
- Translational and Clinical Research Institute, Newcastle University, Newcastle NE2 4AA, UK
| | - Simona S. Ghanem
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - David J. Koss
- Translational and Clinical Research Institute, Newcastle University, Newcastle NE2 4AA, UK
| | - Ilham Y. Abdi
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Elizabeth Gibbons
- Department of Neurodegenerative Science, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Rita Guerreiro
- Department of Neurodegenerative Science, Van Andel Institute, Grand Rapids, MI 49503, USA
- Division of Psychiatry and Behavioral Medicine, Michigan State University College of Human Medicine, Grand Rapids, MI 49503, USA
| | - Jose Bras
- Department of Neurodegenerative Science, Van Andel Institute, Grand Rapids, MI 49503, USA
- Division of Psychiatry and Behavioral Medicine, Michigan State University College of Human Medicine, Grand Rapids, MI 49503, USA
| | | | - Lauren Walker
- Translational and Clinical Research Institute, Newcastle University, Newcastle NE2 4AA, UK
| | - Ellen Gelpi
- Division of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, 1090 Vienna, Austria
| | - Wendy Heywood
- UCL Great Ormond Street Institute of Child Health, London WC1N 1EH, UK
| | - Tiago F. Outeiro
- Translational and Clinical Research Institute, Newcastle University, Newcastle NE2 4AA, UK
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, 37073 Göttingen, Germany
- Max Planck Institute for Experimental Medicine, 37075 Göttingen, Germany
- Scientific employee with an honorary contract at Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), 37075 Göttingen, Germany
| | - Johannes Attems
- Translational and Clinical Research Institute, Newcastle University, Newcastle NE2 4AA, UK
| | - Robert McFarland
- Wellcome Centre for Mitochondrial Research, Claremont Road, Newcastle NE2 4AA, UK
- Translational and Clinical Research Institute, Newcastle University, Newcastle NE2 4AA, UK
- Department of Paediatric Neurology, Great North Children’s Hospital, Newcastle NE1 4LP, UK
| | - Rob Forsyth
- Translational and Clinical Research Institute, Newcastle University, Newcastle NE2 4AA, UK
- Department of Paediatric Neurology, Great North Children’s Hospital, Newcastle NE1 4LP, UK
| | - Omar M. El-Agnaf
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Daniel Erskine
- Wellcome Centre for Mitochondrial Research, Claremont Road, Newcastle NE2 4AA, UK
- Translational and Clinical Research Institute, Newcastle University, Newcastle NE2 4AA, UK
- Correspondence to: Dr Daniel Erskine Wellcome Centre for Mitochondrial Research Newcastle University, Claremont Place Newcastle upon Tyne, NE2 4AA, UK E-mail:
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Yuan Y, Ma X, Song N, Xie J. Expanding Views of Mitochondria in Parkinson's Disease: Focusing on PINK1 and GBA1 Mutations. Neurosci Bull 2022. [PMID: 35543935 DOI: 10.1007/s12264-022-00867-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 03/06/2022] [Indexed: 10/18/2022] Open
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Pereira PAB, Trivedi DK, Silverman J, Duru IC, Paulin L, Auvinen P, Scheperjans F. Multiomics implicate gut microbiota in altered lipid and energy metabolism in Parkinson's disease. NPJ Parkinsons Dis 2022; 8:39. [PMID: 35411052 DOI: 10.1038/s41531-022-00300-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 03/04/2022] [Indexed: 12/19/2022] Open
Abstract
We aimed to investigate the link between serum metabolites, gut bacterial community composition, and clinical variables in Parkinson’s disease (PD) and healthy control subjects (HC). A total of 124 subjects were part of the study (63 PD patients and 61 HC subjects). 139 metabolite features were found to be predictive between the PD and Control groups. No associations were found between metabolite features and within-PD clinical variables. The results suggest alterations in serum metabolite profiles in PD, and the results of correlation analysis between metabolite features and microbiota suggest that several bacterial taxa are associated with altered lipid and energy metabolism in PD.
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Amin J, Erskine D, Donaghy PC, Surendranathan A, Swann P, Kunicki AP, Boche D, Holmes C, Mckeith IG, O'brien JT, Teeling JL, Thomas AJ. Inflammation in dementia with Lewy bodies. Neurobiol Dis 2022. [DOI: 10.1016/j.nbd.2022.105698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 03/03/2022] [Accepted: 03/15/2022] [Indexed: 12/21/2022] Open
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Zhong J, Li M, Xu J, Dong W, Qin Y, Qiu S, Li X, Wang H. Roflupram attenuates α-synuclein-induced cytotoxicity and promotes the mitochondrial translocation of Parkin in SH-SY5Y cells overexpressing A53T mutant α-synuclein. Toxicol Appl Pharmacol 2022; 436:115859. [PMID: 34990728 DOI: 10.1016/j.taap.2021.115859] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/08/2021] [Accepted: 12/30/2021] [Indexed: 01/05/2023]
Abstract
We have previously shown that inhibition of cAMP-specific 3',5'-cyclic phosphodiesterase 4 (PDE4) protects against cellular toxicity in neuronal cells. Since α-synuclein (α-syn) toxicity contributes to the neurodegeneration of Parkinson's disease (PD). The aim of this study was to explore the effects and mechanisms of PDE4 on α-syn-induced neuronal toxicity. Using mutant human A53T α-syn overexpressed SH-SY5Y cells, we found that PDE4B knockdown reduced cellular apoptosis. Roflupram (ROF, 20 μM), a selective PDE4 inhibitor, produced similar protective effects and restored the morphological alterations of mitochondria. Mechanistic studies identified that α-syn enhanced the phosphorylation of Parkin at Ser131, followed by the decreased mitochondrial translocation of Parkin. Whereas both PDE4B knockdown and PDE4 inhibition by ROF blocked the effects of α-syn on Parkin phosphorylation and mitochondrial translocation. Moreover, PDE4 inhibition reversed the increase in the phosphorylation of p38 mitogen-activated protein kinase (MAPK) induced by α-syn. ROF treatment also reduced the binding of p38 MAPK to Parkin. Consistently, overexpression of PDE4B blocked the roles of ROF on p38 MAPK phosphorylation, Parkin phosphorylation, and the subsequent mitochondrial translocation of parkin. Furthermore, PDE4B overexpression attenuated the protective role of ROF, as evidenced by reduced mitochondria membrane potential and increased cellular apoptosis. Interestingly, ROF failed to suppress α-syn-induced cytotoxicity in the presence of a protein kinase A (PKA) inhibitor H-89. Our findings indicate that PDE4 facilitates α-syn-induced cytotoxicity via the PKA/p38 MAPK/Parkin pathway in SH-SY5Y cells overexpressing A53T mutant α-synuclein. PDE4 inhibition by ROF is a promising strategy for the prevention and treatment of α-syn-induced neurodegeneration.
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Affiliation(s)
- Jiahong Zhong
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Mengfan Li
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiangping Xu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, China; Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou 510515, China.
| | - Wenli Dong
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yunyun Qin
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Shuqing Qiu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xing Li
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Haitao Wang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, China; Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou 510515, China.
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Meade RM, Watt KJC, Williams RJ, Mason JM. A Downsized and Optimised Intracellular Library-Derived Peptide Prevents Alpha-Synuclein Primary Nucleation and Toxicity Without Impacting Upon Lipid Binding. J Mol Biol 2021; 433:167323. [PMID: 34695381 DOI: 10.1016/j.jmb.2021.167323] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/16/2021] [Accepted: 10/18/2021] [Indexed: 01/08/2023]
Abstract
Misfolding and aggregation of alpha-synuclein (αS) within dopaminergic neurons is a key factor in the development and progression of a group of age-related neurodegenerative diseases, termed synucleinopathies, that include Parkinson's disease (PD). We previously derived a peptide inhibitor from a 209,952-member intracellular library screen by employing the preNAC region (45-54) as a design template. At least six single-point mutations firmly linked to early-onset Parkinson's disease (E46K, H50Q, G51D, A53T/E/V) are located within this region, strongly implicating a pathogenic role within αS that leads to increased cytotoxicity. A library-derived ten residue peptide, 4554W, was consequently shown to block αS aggregation at the point of primary nucleation via lipid induction, inhibiting its conversion into downstream cytotoxic species. Here we couple truncation with a full alanine scan analysis, to establish the effect upon the αS aggregation pathway relative to 4554W. This revealed the precise residues responsible for eliciting inhibitory interaction and function, as well as those potentially amenable to modification or functionalisation. We find that modification N6A combined with N-terminal truncation results in a peptide of significantly increased efficacy. Importantly, our data demonstrate that the peptide does not directly disrupt αS lipid-binding, a desirable trait since antagonists of αS aggregation and toxicity should not impede association with small synaptic neurotransmitter vesicles, and thus not disrupt dopaminergic vesicle fusion and recycling. This work paves the way toward the major aim of deriving a highly potent peptide antagonist of αS pathogenicity without impacting on native αS function.
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Affiliation(s)
- Richard M Meade
- Department of Biology and Biochemistry, University of Bath, Claverton Down BA2 7AY, United Kingdom
| | - Kathryn J C Watt
- Department of Biology and Biochemistry, University of Bath, Claverton Down BA2 7AY, United Kingdom
| | - Robert J Williams
- Department of Biology and Biochemistry, University of Bath, Claverton Down BA2 7AY, United Kingdom
| | - Jody M Mason
- Department of Biology and Biochemistry, University of Bath, Claverton Down BA2 7AY, United Kingdom.
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Zhao J, Lu W, Ren Y, Fu Y, Martens YA, Shue F, Davis MD, Wang X, Chen K, Li F, Liu CC, Graff-Radford NR, Wszolek ZK, Younkin SG, Brafman DA, Ertekin-Taner N, Asmann YW, Dickson DW, Xu Z, Pan M, Han X, Kanekiyo T, Bu G. Apolipoprotein E regulates lipid metabolism and α-synuclein pathology in human iPSC-derived cerebral organoids. Acta Neuropathol 2021; 142:807-825. [PMID: 34453582 PMCID: PMC8500881 DOI: 10.1007/s00401-021-02361-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 07/31/2021] [Accepted: 08/17/2021] [Indexed: 12/25/2022]
Abstract
APOE4 is a strong genetic risk factor for Alzheimer’s disease and Dementia with Lewy bodies; however, how its expression impacts pathogenic pathways in a human-relevant system is not clear. Here using human iPSC-derived cerebral organoid models, we find that APOE deletion increases α-synuclein (αSyn) accumulation accompanied with synaptic loss, reduction of GBA levels, lipid droplet accumulation and dysregulation of intracellular organelles. These phenotypes are partially rescued by exogenous apoE2 and apoE3, but not apoE4. Lipidomics analysis detects the increased fatty acid utilization and cholesterol ester accumulation in apoE-deficient cerebral organoids. Furthermore, APOE4 cerebral organoids have increased αSyn accumulation compared to those with APOE3. Carrying APOE4 also increases apoE association with Lewy bodies in postmortem brains from patients with Lewy body disease. Our findings reveal the predominant role of apoE in lipid metabolism and αSyn pathology in iPSC-derived cerebral organoids, providing mechanistic insights into how APOE4 drives the risk for synucleinopathies.
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Affiliation(s)
- Jing Zhao
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Wenyan Lu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yingxue Ren
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yuan Fu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yuka A Martens
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Francis Shue
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Mary D Davis
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Xue Wang
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Kai Chen
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Fuyao Li
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Chia-Chen Liu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | | | | | - Steven G Younkin
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - David A Brafman
- School of Biological & Health Systems Engineering, Arizona State University, Tempe, AZ, 85287, USA
| | - Nilüfer Ertekin-Taner
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Department of Neurology, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yan W Asmann
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Dennis W Dickson
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Ziying Xu
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center At San Antonio, San Antonio, TX, 78229, USA
| | - Meixia Pan
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center At San Antonio, San Antonio, TX, 78229, USA
| | - Xianlin Han
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center At San Antonio, San Antonio, TX, 78229, USA
- Department of Medicine, University of Texas Health Science Center At San Antonio, San Antonio, TX, 78229, USA
| | - Takahisa Kanekiyo
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Guojun Bu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA.
- Center for Regenerative Medicine, Neuroregeneration Laboratory, Mayo Clinic, Jacksonville, FL, 32224, USA.
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23
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Ding J, Huang J, Xia B, Hu S, Fan H, Dai J, Li Z, Wang J, Le C, Qiu P, Wang Y. Transfer of α-synuclein from neurons to oligodendrocytes triggers myelin sheath destruction in methamphetamine administration mice. Toxicol Lett 2021; 352:34-45. [PMID: 34562559 DOI: 10.1016/j.toxlet.2021.09.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/12/2021] [Accepted: 09/20/2021] [Indexed: 01/06/2023]
Abstract
Methamphetamine (METH), a widely abused nervous system stimulant, could induce neurotoxicity through α-synuclein (α-syn). Not much is known about the neuronal derived α-syn transmission that underlies oligodendrocyte pathology in METH mice model. In this study, we tested α-syn level, oligodendroglial pathology and autophagy lysosome pathway (ALP) function in corpus callosum in a chronic METH mice model. METH increased α-syn level in neurons and then accumulated in oligodendrocytes. METH increased phosphor-mTOR level, decreased transcription factor EB (TFEB) level and triggered autophagy lysosomal pathway (ALP) impairment, leading to myelin sheath destruction, oligodendroglial proteins loss, mature dendritic spine loss, neuron loss, and astrocyte activation. Deleting endogenous α-syn increased TFEB level, alleviated ALP deficit, and diminished neuropathology induced by METH. TFEB overexpression in oligodendrocytes exerted beneficial effects in METH mice model. These neuroprotective effects were associated with the rescued ALP machinery after oligodendroglial TFEB overexpression. Our study demonstrated, for the first time, that α-syn-TFEB axis might be involve in the METH induced myelin loss, oligodendroglial pathology, and neuropathology. In summary, targeting at the α-syn-TFEB axis might be a promising therapeutic strategy for treating METH induced oligodendroglial pathology, and to a broader view, neurodegenerative diseases.
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Affiliation(s)
- Jiuyang Ding
- School of Forensic Medicine, Guizhou Medical University, Guiyang, China
| | - Jian Huang
- School of Forensic Medicine, Southern Medical University, Guangzhou, China
| | - Bing Xia
- School of Forensic Medicine, Guizhou Medical University, Guiyang, China
| | - Shanshan Hu
- Good Clinical Practice Center, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Haoliang Fan
- School of Forensic Medicine, Southern Medical University, Guangzhou, China
| | - Jialin Dai
- School of Forensic Medicine, Guizhou Medical University, Guiyang, China
| | - Zhu Li
- School of Forensic Medicine, Guizhou Medical University, Guiyang, China
| | - Jiawen Wang
- School of Forensic Medicine, Guizhou Medical University, Guiyang, China
| | - Cuiyun Le
- School of Forensic Medicine, Guizhou Medical University, Guiyang, China
| | - Pingming Qiu
- School of Forensic Medicine, Southern Medical University, Guangzhou, China.
| | - Yuanhe Wang
- School of Forensic Medicine, Guizhou Medical University, Guiyang, China.
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24
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Huang X, Wang C, Chen L, Zhang T, Leung KL, Wong G. Human amyloid beta and α-synuclein co-expression in neurons impair behavior and recapitulate features for Lewy body dementia in Caenorhabditis elegans. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166203. [PMID: 34146705 DOI: 10.1016/j.bbadis.2021.166203] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022]
Abstract
Amyloid β (Aβ), a product of APP, and SNCA (α-synuclein (α-syn)) are two of the key proteins found in lesions associated with the age-related neurodegenerative disorders Alzheimer's disease (AD) and Parkinson's disease (PD), respectively. Previous clinical studies uncovered Aβ and α-syn co-expression in the brains of patients, which lead to Lewy body dementia (LBD), a disease encompassing Dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD). To explore the pathogenesis and define the relationship between Aβ and α-syn for LBD, we established a C. elegans model which co-expresses human Aβ and α-syn with alanine 53 to threonine mutant (α-syn(A53T)) in pan-neurons. Compared to α-syn(A53T) single transgenic animals, pan-neuronal Aβ and α-syn(A53T) co-expression further enhanced the thrashing, egg laying, serotonin and cholinergic signaling deficits, and dopaminergic neuron damage in C. elegans. In addition, Aβ increased α-syn expression in transgenic animals. Transcriptome analysis of both Aβ;α-syn(A53T) strains and DLB patients showed common downregulation in lipid metabolism and lysosome function genes, suggesting that a decrease of lysosome function may reduce the clearance ability in DLB, and this may lead to the further pathogenic protein accumulation. These findings suggest that our model can recapitulate some features in LBD and provides a mechanism by which Aβ may exacerbate α-syn pathogenesis.
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Affiliation(s)
- Xiaobing Huang
- Cancer Centre, Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau 999078, China
| | - Changliang Wang
- Cancer Centre, Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau 999078, China; Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China
| | - Liang Chen
- Department of Computer Science, College of Engineering, Shantou University, Shantou 515063, China; Key Laboratory of Intelligent Manufacturing Technology of Ministry of Education, Shantou University, Shantou 515063, China
| | - Tianjiao Zhang
- Cancer Centre, Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau 999078, China
| | - Ka Lai Leung
- Cancer Centre, Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau 999078, China
| | - Garry Wong
- Cancer Centre, Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Macau 999078, China.
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25
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Markopoulou K, Chase BA, Premkumar AP, Schoneburg B, Kartha N, Wei J, Yu H, Epshteyn A, Garduno L, Pham A, Vazquez R, Frigerio R, Maraganore D. Variable Effects of PD-Risk Associated SNPs and Variants in Parkinsonism-Associated Genes on Disease Phenotype in a Community-Based Cohort. Front Neurol 2021; 12:662278. [PMID: 33935957 PMCID: PMC8079937 DOI: 10.3389/fneur.2021.662278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/18/2021] [Indexed: 11/13/2022] Open
Abstract
Genetic risk factors for Parkinson's disease (PD) risk and progression have been identified from genome-wide association studies (GWAS), as well as studies of familial forms of PD, implicating common variants at more than 90 loci and pathogenic or likely pathogenic variants at 16 loci. With the goal of understanding whether genetic variants at these PD-risk loci/genes differentially contribute to individual clinical phenotypic characteristics of PD, we used structured clinical documentation tools within the electronic medical record in an effort to provide a standardized and detailed clinical phenotypic characterization at the point of care in a cohort of 856 PD patients. We analyzed common SNPs identified in previous GWAS studies, as well as low-frequency and rare variants at parkinsonism-associated genes in the MDSgene database for their association with individual clinical characteristics and test scores at baseline assessment in our community-based PD patient cohort: age at onset, disease duration, Unified Parkinson's Disease Rating Scale I-VI, cognitive status, initial and baseline motor and non-motor symptoms, complications of levodopa therapy, comorbidities and family history of neurological disease with one or more than one affected family members. We find that in most cases an individual common PD-risk SNP identified in GWAS is associated with only a single clinical feature or test score, while gene-level tests assessing low-frequency and rare variants reveal genes associated in either a unique or partially overlapping manner with the different clinical features and test scores. Protein-protein interaction network analysis of the identified genes reveals that while some of these genes are members of already identified protein networks others are not. These findings indicate that genetic risk factors for PD differentially affect the phenotypic presentation and that genes associated with PD risk are also differentially associated with individual disease phenotypic characteristics at baseline. These findings raise the intriguing possibility that different SNPs/gene effects impact discrete phenotypic characteristics. Furthermore, they support the hypothesis that different gene and protein-protein interaction networks that underlie PD risk, the PD phenotype, and the neurodegenerative process leading to the disease phenotype, and point to the significance of the genetic background on disease phenotype.
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Affiliation(s)
- Katerina Markopoulou
- Department of Neurology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Bruce A. Chase
- Health Information Technology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Ashvini P. Premkumar
- Department of Neurology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Bernadette Schoneburg
- Department of Neurology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Ninith Kartha
- Department of Neurology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Jun Wei
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, IL, United States
| | - Hongjie Yu
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, IL, United States
| | - Alexander Epshteyn
- Health Information Technology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Lisette Garduno
- Department of Neurology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Anna Pham
- Department of Neurology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Rosa Vazquez
- Department of Neurology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Roberta Frigerio
- Department of Neurology, NorthShore University HealthSystem, Evanston, IL, United States
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26
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Affiliation(s)
- Tiago Fleming Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center, Göttingen, Germany.
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany.
- Max Planck Institute for Experimental Medicine, Göttingen, Germany.
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK.
- Scientific Employee With a Honorary Contract At Deutsches Zentrum Für Neurodegenerative Erkrankungen (DZNE), Göttingen, Germany.
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27
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Sian-Hulsmann J, Riederer P. The Nigral Coup in Parkinson's Disease by α-Synuclein and Its Associated Rebels. Cells 2021; 10:598. [PMID: 33803185 PMCID: PMC8000327 DOI: 10.3390/cells10030598] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/24/2022] Open
Abstract
The risk of Parkinson's disease increases with age. However, the etiology of the illness remains obscure. It appears highly likely that the neurodegenerative processes involve an array of elements that influence each other. In addition, genetic, endogenous, or exogenous toxins need to be considered as viable partners to the cellular degeneration. There is compelling evidence that indicate the key involvement of modified α-synuclein (Lewy bodies) at the very core of the pathogenesis of the disease. The accumulation of misfolded α-synuclein may be a consequence of some genetic defect or/and a failure of the protein clearance system. Importantly, α-synuclein pathology appears to be a common denominator for many cellular deleterious events such as oxidative stress, mitochondrial dysfunction, dopamine synaptic dysregulation, iron dyshomeostasis, and neuroinflammation. These factors probably employ a common apoptotic/or autophagic route in the final stages to execute cell death. The misfolded α-synuclein inclusions skillfully trigger or navigate these processes and thus amplify the dopamine neuron fatalities. Although the process of neuroinflammation may represent a secondary event, nevertheless, it executes a fundamental role in neurodegeneration. Some viral infections produce parkinsonism and exhibit similar characteristic neuropathological changes such as a modest brain dopamine deficit and α-synuclein pathology. Thus, viral infections may heighten the risk of developing PD. Alternatively, α-synuclein pathology may induce a dysfunctional immune system. Thus, sporadic Parkinson's disease is caused by multifactorial trigger factors and metabolic disturbances, which need to be considered for the development of potential drugs in the disorder.
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Affiliation(s)
- Jeswinder Sian-Hulsmann
- Department of Medical Physiology, University of Nairobi, P.O. Box 30197, 00100 Nairobi, Kenya
| | - Peter Riederer
- Clinic and Policlinic for Psychiatry, Psychosomatics and Psychotherapy Margarete-Hoeppel-Platz 1, University Hospital Wuerzburg, 97080 Wuerzburg, Germany;
- Department Psychiatry, University of Southern Denmark Odense, J.B. Winslows Vey 18, 5000 Odense, Denmark
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