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Ghosh I, Sankhe R, Mudgal J, Arora D, Nampoothiri M. Spermidine, an autophagy inducer, as a therapeutic strategy in neurological disorders. Neuropeptides 2020; 83:102083. [PMID: 32873420 DOI: 10.1016/j.npep.2020.102083] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/18/2020] [Accepted: 07/26/2020] [Indexed: 02/06/2023]
Abstract
Spermidine is a naturally occurring endogenous polyamine synthesized from diamine putrescine. It is a well-known autophagy inducer that maintains cellular and neuronal homeostasis. Healthy brain development and function are dependent on brain polyamine concentration. Polyamines interact with the opioid system, glutamatergic signaling and neuroinflammation in the neuronal and glial compartments. Among the polyamines, spermidine is found highest in the human brain. Age-linked fluctuations in the spermidine levels may possibly contribute to the impairments in neural network and neurogenesis. Exogenously administered spermidine helps in the treatment of brain diseases. Further, current studies highlight the ability of spermidine to promote longevity by inducing autophagy. Still, the causal neuroprotective mechanism of spermidine in neuronal dysfunction remains unidentified. This review aims to summarize various neuroprotective effects of spermidine related to anti-aging/ anti-inflammatory properties and the prevention of neurotoxicity that helps in achieving beneficial effects in age-related neurological disorder. We also expose the signaling cascades modulated by spermidine which might result in therapeutic action. The present review highlights clinical studies along with in-vivo and in-vitro preclinical studies to provide a new dimension for the therapeutic potential of spermidine in neurological disorders.
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Affiliation(s)
- Indrani Ghosh
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, India
| | - Runali Sankhe
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, India
| | - Jayesh Mudgal
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, India
| | - Devinder Arora
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, India; School of Pharmacy and Pharmacology, MHIQ, QUM Network, Griffith University, Gold Coast, Queensland, Australia
| | - Madhavan Nampoothiri
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, India.
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Kelm-Nelson CA, Gammie S. Gene expression within the periaqueductal gray is linked to vocal behavior and early-onset parkinsonism in Pink1 knockout rats. BMC Genomics 2020; 21:625. [PMID: 32942992 PMCID: PMC7495669 DOI: 10.1186/s12864-020-07037-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 08/30/2020] [Indexed: 12/30/2022] Open
Abstract
Background Parkinson’s disease (PD) is a degenerative disease with early-stage pathology hypothesized to manifest in brainstem regions. Vocal deficits, including soft, monotone speech, result in significant clinical and quality of life issues and are present in 90% of PD patients; yet the underlying pathology mediating these significant voice deficits is unknown. The Pink1−/− rat is a valid model of early-onset PD that presents with analogous vocal communication deficits. Previous work shows abnormal α-synuclein protein aggregation in the periaqueductal gray (PAG), a brain region critical and necessary to the modulation of mammalian vocal behavior. In this study, we used high-throughput RNA sequencing to examine gene expression within the PAG of both male and female Pink1−/− rats as compared to age-matched wildtype controls. We used a bioinformatic approach to (1) test the hypothesis that loss of Pink1 in the PAG will influence the differential expression of genes that interact with Pink1, (2) highlight other key genes that relate to this type of Mendelian PD, and (3) catalog molecular targets that may be important for the production of rat vocalizations. Results Knockout of the Pink1 gene resulted in differentially expressed genes for both male and female rats that also mapped to human PD datasets. Pathway analysis highlighted several significant metabolic pathways. Weighted gene co-expression network analysis (WGCNA) was used to identify gene nodes and their interactions in (A) males, (B) females, and (C) combined-sexes datasets. For each analysis, within the module containing the Pink1 gene, Pink1 itself was the central node with the highest number of interactions with other genes including solute carriers, glutamate metabotropic receptors, and genes associated with protein localization. Strong connections between Pink1 and Krt2 and Hfe were found in both males and female datasets. In females a number of modules were significantly correlated with vocalization traits. Conclusions Overall, this work supports the premise that gene expression changes in the PAG may contribute to the vocal deficits observed in this PD rat model. Additionally, this dataset identifies genes that represent new therapeutic targets for PD voice disorders.
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Affiliation(s)
- Cynthia A Kelm-Nelson
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison, 1300 University Avenue, 483 Medical Sciences Center, Madison, WI, 53706, USA.
| | - Stephen Gammie
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, WI, USA
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Altered brain arginine metabolism with age in the APP swe/PSEN1 dE9 mouse model of Alzheimer's disease. Neurochem Int 2020; 140:104798. [PMID: 32711019 DOI: 10.1016/j.neuint.2020.104798] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 06/09/2020] [Accepted: 06/26/2020] [Indexed: 12/19/2022]
Abstract
Amyloid-beta (Aβ) cleaved from amyloid precursor protein (APP) has been proposed to play a central and causative role in the aetiology of Alzheimer's disease (AD). APPswe/PSEN1dE9 (APP/PS1) transgenic mice display chronic Aβ accumulation and deposition in the brain. L-arginine is a semi-essential amino acid with a number of bioactive metabolites, and altered arginine metabolism has been implicated in the pathogenesis and/or the development of AD. This study systematically investigated how arginine metabolic profiles changed in the frontal cortex, hippocampus, parahippocampal region and cerebellum of male APP/PS1 mice at 4, 9 and 17 months of age relative to their sex- and age-matched wildtype controls. Immunohistochemistry demonstrated age-related Aβ deposition in the brain. High-performance liquid chromatography and mass spectrometry revealed age-related increases in glutamine, spermidine and spermine in APP/PS1 mice in a region-specific manner. Notably, genotype-related increases in spermine were found in the frontal cortex at the 9-month age point and in the frontal cortex, hippocampus and parahippocampal region at 17 months of age. Given the existing literature indicating the role of polyamines (spermine in particular) in modulating the aggregation and toxicity of Aβ oligomers, increased spermidine and spermine levels in APP/PS1 mice may be a neuroprotective mechanism to combat Aβ toxicity. Future research is required to better understand the functional significance of these changes.
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Bardanzellu F, Puddu M, Peroni DG, Fanos V. The Human Breast Milk Metabolome in Overweight and Obese Mothers. Front Immunol 2020; 11:1533. [PMID: 32793208 PMCID: PMC7385070 DOI: 10.3389/fimmu.2020.01533] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 06/10/2020] [Indexed: 12/15/2022] Open
Abstract
Pre-pregnancy body mass index (BMI) is a major relevance factor, since maternal overweight and obesity can impair the pregnancy outcome and represent risk factors for several neonatal, childhood, and adult conditions, including excessive weight gain, cardiovascular disease, diabetes mellitus, and even behavioral disorders. Currently, breast milk (BM) composition in such category of mothers was not completely defined. In this field, metabolomics represents the ideal technology, able to detect the whole profile of low molecular weight molecules in BM. Limited information is available on human BM metabolites differences in overweight or obese compared to lean mothers. Analyzing all the metabolomics studies published on Medline in English language, this review evaluated the effects that 8 specific types of metabolites found altered by maternal overweight and obesity (nucleotide derivatives, 5-methylthioadenosine, sugar-alcohols, acylcarnitine and amino acids, polyamines, mono-and oligosaccharides, lipids) can exert on the risk of offspring obesity development and other potentially associated health outcomes and complications. However, metabolites variations in samples collected from overweight and obese mothers and the potentially correlated effects highlighted below still need further investigations and should be confirmed in future metabolomics studies on larger samples. Finally, the positive or negative influence of maternal overweight and obesity on the offspring, potentially exerted by breastfeeding, should be analyzed in close correlation with maternal age, genetic and environmental factors, including diet, and taking into account the interactions occurring between BM metabolites and lactobiome. The evaluation of all the factors affecting BM metabolites in overweight and obese mothers can lead to the comprehensive description of such biofluid and the related effects on breastfed subjects, potentially highlighting personalized needs of BM supplementation or short- and long-term prevention strategies to optimize offspring health.
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Affiliation(s)
- Flaminia Bardanzellu
- Neonatal Intensive Care Unit, Department of Surgical Sciences, AOU and University of Cagliari, Monserrato, Italy
| | - Melania Puddu
- Neonatal Intensive Care Unit, Department of Surgical Sciences, AOU and University of Cagliari, Monserrato, Italy
| | - Diego Giampietro Peroni
- Clinical and Experimental Medicine Department, Section of Pediatrics, University of Pisa, Pisa, Italy
| | - Vassilios Fanos
- Neonatal Intensive Care Unit, Department of Surgical Sciences, AOU and University of Cagliari, Monserrato, Italy
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Fernández-García JC, Martínez-Sánchez MA, Bernal-López MR, Muñoz-Garach A, Martínez-González MA, Fitó M, Salas-Salvadó J, Tinahones FJ, Ramos-Molina B. Effect of a lifestyle intervention program with energy-restricted Mediterranean diet and exercise on the serum polyamine metabolome in individuals at high cardiovascular disease risk: a randomized clinical trial. Am J Clin Nutr 2020; 111:975-982. [PMID: 32246717 DOI: 10.1093/ajcn/nqaa064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 03/09/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Many food items included in the Mediterranean diet (MedDiet) are rich in polyamines, small aliphatic amines with potential cardioprotective effects. The consumption of a MedDiet could increase polyamine concentrations. Based on experimental models, polyamine concentrations may be also influenced by physical activity (PA). OBJECTIVES We aimed to evaluate whether an intervention based on an energy-restricted MedDiet (er-MedDiet) and PA promotion, in comparison with an energy-unrestricted MedDiet and traditional health care, influences the serum pattern of polyamines and related metabolites in subjects at high risk of cardiovascular disease (CVD). METHODS This was a substudy from the PREDIMED-Plus trial, an ongoing randomized clinical trial including 6874 participants allocated either to an intensive weight-loss lifestyle intervention based on er-MedDiet, PA promotion, and behavioral support (er-MedDiet + PA group), or to an energy-unrestricted MedDiet and traditional health care group (MedDiet group). A total of 75 patients (n = 38, er-MedDiet + PA group; n = 37, MedDiet group) were included in this study. Serum concentrations of arginine, ornithine, polyamines, and acetyl polyamines at baseline and 26 wk of intervention were measured by an ultra-high-performance LC-tandem MS platform. RESULTS At week 26, study groups had similar adherence to the MedDiet but patients randomly assigned to the er-MedDiet + PA group showed significantly lower mean energy intake (-340.3 kcal/d; 95% CI: -567.3, -113.4 kcal/d; P = 0.004), higher mean PA (1290.6; 95% CI: 39.9, 2541.3 metabolic equivalent tasks · min/d; P = 0.043), and higher mean decrease in BMI (in kg/m2) (-1.3; 95% CI: -1.8, -0.6; P < 0.001) than the MedDiet group. However, no significant differences in serum polyamines or related metabolites were found between study groups after 26 wk of intervention and no significant between-group differences were found in glycated hemoglobin, HDL-cholesterol, or triglyceride concentrations. CONCLUSIONS In individuals at high CVD risk, an er-MedDiet with increased PA did not result in significant changes of serum concentrations of polyamines or related metabolites in comparison with an energy-unrestricted MedDiet and no increase in PA. This trial was registered at isrctn.com as ISRCTN89898870.
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Affiliation(s)
- José C Fernández-García
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - María A Martínez-Sánchez
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain
| | - María R Bernal-López
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain.,Internal Medicine Department, Regional University Hospital of Malaga, Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain
| | - Araceli Muñoz-Garach
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - Miguel A Martínez-González
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain.,Department of Preventive Medicine and Public Health, Medical School, University of Navarra, Pamplona, Spain
| | - Montse Fitó
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain.,Unit of Cardiovascular Risk and Nutrition, Institut Hospital del Mar d'Investigacions Mediques (IMIM), Barcelona, Spain
| | - Jordi Salas-Salvadó
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain.,Human Nutrition Unit, Hospital Universitari Sant Joan de Reus, Institut d'Investigació Sanitaria Pere Virgili (IISPV); Department of Biochemistry and Biotechnology, Rovira i Virgili University, Reus, Spain
| | - Francisco J Tinahones
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - Bruno Ramos-Molina
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research in Malaga (IBIMA), Malaga, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain.,Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
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Rahman MH, Peng S, Hu X, Chen C, Rahman MR, Uddin S, Quinn JM, Moni MA. A Network-Based Bioinformatics Approach to Identify Molecular Biomarkers for Type 2 Diabetes that Are Linked to the Progression of Neurological Diseases. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17031035. [PMID: 32041280 PMCID: PMC7037290 DOI: 10.3390/ijerph17031035] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/02/2020] [Accepted: 02/02/2020] [Indexed: 12/21/2022]
Abstract
Neurological diseases (NDs) are progressive disorders, the progression of which can be significantly affected by a range of common diseases that present as comorbidities. Clinical studies, including epidemiological and neuropathological analyses, indicate that patients with type 2 diabetes (T2D) have worse progression of NDs, suggesting pathogenic links between NDs and T2D. However, finding causal or predisposing factors that link T2D and NDs remains challenging. To address these problems, we developed a high-throughput network-based quantitative pipeline using agnostic approaches to identify genes expressed abnormally in both T2D and NDs, to identify some of the shared molecular pathways that may underpin T2D and ND interaction. We employed gene expression transcriptomic datasets from control and disease-affected individuals and identified differentially expressed genes (DEGs) in tissues of patients with T2D and ND when compared to unaffected control individuals. One hundred and ninety seven DEGs (99 up-regulated and 98 down-regulated in affected individuals) that were common to both the T2D and the ND datasets were identified. Functional annotation of these identified DEGs revealed the involvement of significant cell signaling associated molecular pathways. The overlapping DEGs (i.e., seen in both T2D and ND datasets) were then used to extract the most significant GO terms. We performed validation of these results with gold benchmark databases and literature searching, which identified which genes and pathways had been previously linked to NDs or T2D and which are novel. Hub proteins in the pathways were identified (including DNM2, DNM1, MYH14, PACSIN2, TFRC, PDE4D, ENTPD1, PLK4, CDC20B, and CDC14A) using protein-protein interaction analysis which have not previously been described as playing a role in these diseases. To reveal the transcriptional and post-transcriptional regulators of the DEGs we used transcription factor (TF) interactions analysis and DEG-microRNAs (miRNAs) interaction analysis, respectively. We thus identified the following TFs as important in driving expression of our T2D/ND common genes: FOXC1, GATA2, FOXL1, YY1, E2F1, NFIC, NFYA, USF2, HINFP, MEF2A, SRF, NFKB1, USF2, HINFP, MEF2A, SRF, NFKB1, PDE4D, CREB1, SP1, HOXA5, SREBF1, TFAP2A, STAT3, POU2F2, TP53, PPARG, and JUN. MicroRNAs that affect expression of these genes include mir-335-5p, mir-16-5p, mir-93-5p, mir-17-5p, mir-124-3p. Thus, our transcriptomic data analysis identifies novel potential links between NDs and T2D pathologies that may underlie comorbidity interactions, links that may include potential targets for therapeutic intervention. In sum, our neighborhood-based benchmarking and multilayer network topology methods identified novel putative biomarkers that indicate how type 2 diabetes (T2D) and these neurological diseases interact and pathways that, in the future, may be targeted for treatment.
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Affiliation(s)
- Md Habibur Rahman
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; (M.H.R.); (S.P.); (X.H.); (C.C.)
- University of Chinese Academy of Sciences, Beijing 100190, China
- Department of Computer Science and Engineering, Islamic University, Kushtia 7003, Bangladesh
| | - Silong Peng
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; (M.H.R.); (S.P.); (X.H.); (C.C.)
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Xiyuan Hu
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; (M.H.R.); (S.P.); (X.H.); (C.C.)
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Chen Chen
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; (M.H.R.); (S.P.); (X.H.); (C.C.)
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Md Rezanur Rahman
- Department of Biochemistry and Biotechnology, Khwaja Yunus Ali University, Enayetpur, Sirajgonj 6751, Bangladesh;
| | - Shahadat Uddin
- Complex Systems Research Group & Project Management Program, Faculty of Engineering, The University of Sydney, Sydney, NSW 2006, Australia;
| | - Julian M.W. Quinn
- Bone Biology Division, Garvan Institute of Medical Research, Darlinghurst, NSW 2010, Australia;
| | - Mohammad Ali Moni
- Bone Biology Division, Garvan Institute of Medical Research, Darlinghurst, NSW 2010, Australia;
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
- Correspondence:
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ATP13A2 deficiency disrupts lysosomal polyamine export. Nature 2020; 578:419-424. [PMID: 31996848 DOI: 10.1038/s41586-020-1968-7] [Citation(s) in RCA: 176] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 12/02/2019] [Indexed: 02/07/2023]
Abstract
ATP13A2 (PARK9) is a late endolysosomal transporter that is genetically implicated in a spectrum of neurodegenerative disorders, including Kufor-Rakeb syndrome-a parkinsonism with dementia1-and early-onset Parkinson's disease2. ATP13A2 offers protection against genetic and environmental risk factors of Parkinson's disease, whereas loss of ATP13A2 compromises lysosomes3. However, the transport function of ATP13A2 in lysosomes remains unclear. Here we establish ATP13A2 as a lysosomal polyamine exporter that shows the highest affinity for spermine among the polyamines examined. Polyamines stimulate the activity of purified ATP13A2, whereas ATP13A2 mutants that are implicated in disease are functionally impaired to a degree that correlates with the disease phenotype. ATP13A2 promotes the cellular uptake of polyamines by endocytosis and transports them into the cytosol, highlighting a role for endolysosomes in the uptake of polyamines into cells. At high concentrations polyamines induce cell toxicity, which is exacerbated by ATP13A2 loss due to lysosomal dysfunction, lysosomal rupture and cathepsin B activation. This phenotype is recapitulated in neurons and nematodes with impaired expression of ATP13A2 or its orthologues. We present defective lysosomal polyamine export as a mechanism for lysosome-dependent cell death that may be implicated in neurodegeneration, and shed light on the molecular identity of the mammalian polyamine transport system.
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Candelise N, Schmitz M, Thüne K, Cramm M, Rabano A, Zafar S, Stoops E, Vanderstichele H, Villar-Pique A, Llorens F, Zerr I. Effect of the micro-environment on α-synuclein conversion and implication in seeded conversion assays. Transl Neurodegener 2020; 9:5. [PMID: 31988747 PMCID: PMC6966864 DOI: 10.1186/s40035-019-0181-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 12/23/2019] [Indexed: 01/28/2023] Open
Abstract
Background α-Synuclein is a small soluble protein, whose physiological function in the healthy brain is poorly understood. Intracellular inclusions of α-synuclein, referred to as Lewy bodies (LBs), are pathological hallmarks of α-synucleinopathies, such as Parkinson’s disease (PD) or dementia with Lewy bodies (DLB). Main body Understanding of the molecular basis as well as the factors or conditions promoting α-synuclein misfolding and aggregation is an important step towards the comprehension of pathological mechanism of α-synucleinopathies and for the development of efficient therapeutic strategies. Based on the conversion and aggregation mechanism of α-synuclein, novel diagnostic tests, such as protein misfolding seeded conversion assays, e.g. the real-time quaking-induced conversion (RT-QuIC), had been developed. In diagnostics, α-synuclein RT-QuIC exhibits a specificity between 82 and 100% while the sensitivity varies between 70 and 100% among different laboratories. In addition, the α-synuclein RT-QuIC can be used to study the α-synuclein-seeding-characteristics of different α-synucleinopathies and to differentiate between DLB and PD. Conclusion The variable diagnostic accuracy of current α-synuclein RT-QuIC occurs due to different protocols, cohorts and material etc.. An impact of micro-environmental factors on the α-synuclein aggregation and conversion process and the occurrence and detection of differential misfolded α-synuclein types or strains might underpin the clinical heterogeneity of α-synucleinopathies.
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Affiliation(s)
- Niccolo Candelise
- 1Department of Neurology, University Medicine Goettingen and the German Center for Neurodegenerative Diseases (DZNE), Robert-Koch -Straße 40, 37075 Göttingen, Germany.,3Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, Bologna, Italy
| | - Matthias Schmitz
- 1Department of Neurology, University Medicine Goettingen and the German Center for Neurodegenerative Diseases (DZNE), Robert-Koch -Straße 40, 37075 Göttingen, Germany
| | - Katrin Thüne
- 1Department of Neurology, University Medicine Goettingen and the German Center for Neurodegenerative Diseases (DZNE), Robert-Koch -Straße 40, 37075 Göttingen, Germany
| | - Maria Cramm
- 1Department of Neurology, University Medicine Goettingen and the German Center for Neurodegenerative Diseases (DZNE), Robert-Koch -Straße 40, 37075 Göttingen, Germany
| | - Alberto Rabano
- 4Departamento de Neuropatología y Banco de Tejidos (BT-CIEN), Fundación CIEN, Instituto de Salud Carlos III Centro Alzheimer Fundación Reina Sofíac, Valderrebollo n° 5, 28031 Madrid, Spain
| | - Saima Zafar
- 1Department of Neurology, University Medicine Goettingen and the German Center for Neurodegenerative Diseases (DZNE), Robert-Koch -Straße 40, 37075 Göttingen, Germany.,2Biomedical Engineering and Sciences Department, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Erik Stoops
- ADx NeuroSciences, Technologiepark 4, Ghent, Belgium
| | | | - Anna Villar-Pique
- 1Department of Neurology, University Medicine Goettingen and the German Center for Neurodegenerative Diseases (DZNE), Robert-Koch -Straße 40, 37075 Göttingen, Germany.,6CIBERNED (Network center for biomedical research of neurodegenerative diseases), Institute Carlos III, Madrid, Spain
| | - Franc Llorens
- 1Department of Neurology, University Medicine Goettingen and the German Center for Neurodegenerative Diseases (DZNE), Robert-Koch -Straße 40, 37075 Göttingen, Germany.,6CIBERNED (Network center for biomedical research of neurodegenerative diseases), Institute Carlos III, Madrid, Spain.,7Bellvitge Biomedical Research Institute (IDIBELL), Hospitalet de Llobregat, Barcelona, Spain
| | - Inga Zerr
- 1Department of Neurology, University Medicine Goettingen and the German Center for Neurodegenerative Diseases (DZNE), Robert-Koch -Straße 40, 37075 Göttingen, Germany
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A systems biology approach to identifying genetic factors affected by aging, lifestyle factors, and type 2 diabetes that influences Parkinson's disease progression. INFORMATICS IN MEDICINE UNLOCKED 2020. [DOI: 10.1016/j.imu.2020.100448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Sánchez-Jiménez F, Medina MÁ, Villalobos-Rueda L, Urdiales JL. Polyamines in mammalian pathophysiology. Cell Mol Life Sci 2019; 76:3987-4008. [PMID: 31227845 PMCID: PMC11105599 DOI: 10.1007/s00018-019-03196-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/11/2019] [Accepted: 06/14/2019] [Indexed: 02/07/2023]
Abstract
Polyamines (PAs) are essential organic polycations for cell viability along the whole phylogenetic scale. In mammals, they are involved in the most important physiological processes: cell proliferation and viability, nutrition, fertility, as well as nervous and immune systems. Consequently, altered polyamine metabolism is involved in a series of pathologies. Due to their pathophysiological importance, PA metabolism has evolved to be a very robust metabolic module, interconnected with the other essential metabolic modules for gene expression and cell proliferation/differentiation. Two different PA sources exist for animals: PA coming from diet and endogenous synthesis. In the first section of this work, the molecular characteristics of PAs are presented as determinant of their roles in living organisms. In a second section, the metabolic specificities of mammalian PA metabolism are reviewed, as well as some obscure aspects on it. This second section includes information on mammalian cell/tissue-dependent PA-related gene expression and information on crosstalk with the other mammalian metabolic modules. The third section presents a synthesis of the physiological processes described as modulated by PAs in humans and/or experimental animal models, the molecular bases of these regulatory mechanisms known so far, as well as the most important gaps of information, which explain why knowledge around the specific roles of PAs in human physiology is still considered a "mysterious" subject. In spite of its robustness, PA metabolism can be altered under different exogenous and/or endogenous circumstances so leading to the loss of homeostasis and, therefore, to the promotion of a pathology. The available information will be summarized in the fourth section of this review. The different sections of this review also point out the lesser-known aspects of the topic. Finally, future prospects to advance on these still obscure gaps of knowledge on the roles on PAs on human physiopathology are discussed.
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Affiliation(s)
- Francisca Sánchez-Jiménez
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Andalucía Tech, and IBIMA (Biomedical Research Institute of Málaga), Málaga, Spain
- UNIT 741, CIBER de Enfermedades Raras (CIBERER), 29071, Málaga, Spain
| | - Miguel Ángel Medina
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Andalucía Tech, and IBIMA (Biomedical Research Institute of Málaga), Málaga, Spain
- UNIT 741, CIBER de Enfermedades Raras (CIBERER), 29071, Málaga, Spain
| | - Lorena Villalobos-Rueda
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Andalucía Tech, and IBIMA (Biomedical Research Institute of Málaga), Málaga, Spain
| | - José Luis Urdiales
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Andalucía Tech, and IBIMA (Biomedical Research Institute of Málaga), Málaga, Spain.
- UNIT 741, CIBER de Enfermedades Raras (CIBERER), 29071, Málaga, Spain.
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Limon A, Delbruck E, Yassine A, Pandya D, Myers RM, Barchas JD, Lee F, Schatzberg, Watson SJ, Akil H, Bunney WE, Vawter MP, Sequeira A. Electrophysiological evaluation of extracellular spermine and alkaline pH on synaptic human GABA A receptors. Transl Psychiatry 2019; 9:218. [PMID: 31488811 PMCID: PMC6728327 DOI: 10.1038/s41398-019-0551-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/30/2019] [Accepted: 06/20/2019] [Indexed: 01/25/2023] Open
Abstract
Polyamines have fundamental roles in brain homeostasis as key modulators of cellular excitability. Several studies have suggested alterations in polyamine metabolism in stress related disorders, suicide, depression, and neurodegeneration, making the pharmacological modulation of polyamines a highly appealing therapeutic strategy. Polyamines are small aliphatic molecules that can modulate cationic channels involved in neuronal excitability. Previous indirect evidence has suggested that polyamines can modulate anionic GABAA receptors (GABAARs), which mediate inhibitory signaling and provide a direct route to reduce hyperexcitability. Here, we attempted to characterize the effect that spermine, the polyamine with the strongest reported effect on GABAARs, has on human postmortem native GABAARs. We microtransplanted human synaptic membranes from the dorsolateral prefrontal cortex of four cases with no history of mental or neurological disorders, and directly recorded spermine effects on ionic GABAARs responses on microtransplanted oocytes. We show that in human synapses, inhibition of GABAARs by spermine was better explained by alkalization of the extracellular solution. Additionally, spermine had no effect on the potentiation of GABA-currents by diazepam, indicating that even if diazepam binding is enhanced by spermine, it does not translate to changes in functional activity. Our results clearly demonstrate that while extracellular spermine does not have direct effects on human native synaptic GABAARs, spermine-mediated shifts of pH inhibit GABAARs. Potential spermine-mediated increase of pH in synapses in vivo may therefore participate in increased neuronal activity observed during physiological and pathological states, and during metabolic alterations that increase the release of spermine to the extracellular milieu.
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Affiliation(s)
- A. Limon
- 0000 0001 0668 7243grid.266093.8Department of Psychiatry and Human Behavior. School of Medicine, University of California Irvine, Irvine, USA ,0000 0001 1547 9964grid.176731.5Department of Neurology, Mitchel Center for Neurodegenerative Diseases, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, USA
| | - E. Delbruck
- 0000 0001 0668 7243grid.266093.8Department of Psychiatry and Human Behavior. School of Medicine, University of California Irvine, Irvine, USA
| | - A. Yassine
- 0000 0001 0668 7243grid.266093.8Department of Psychiatry and Human Behavior. School of Medicine, University of California Irvine, Irvine, USA
| | - D. Pandya
- 0000 0001 1547 9964grid.176731.5Department of Neurology, Mitchel Center for Neurodegenerative Diseases, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, USA
| | - R. M. Myers
- 0000 0004 0408 3720grid.417691.cHudsonAlpha Institute for Biotechnology, Huntsville, AL USA
| | - J. D. Barchas
- 000000041936877Xgrid.5386.8Department of Psychiatry, Weill Cornell Medical College, New York, NY USA
| | - F. Lee
- 000000041936877Xgrid.5386.8Department of Psychiatry, Weill Cornell Medical College, New York, NY USA
| | - Schatzberg
- 0000000419368956grid.168010.eDepartment of Psychiatry & Behavioral Sciences, Stanford University, Palo Alto, CA USA
| | - S. J. Watson
- 0000000086837370grid.214458.eMolecular and Behavioral Neurosciences Institute, University of Michigan, Ann Arbor, MI USA
| | - H. Akil
- 0000000086837370grid.214458.eMolecular and Behavioral Neurosciences Institute, University of Michigan, Ann Arbor, MI USA
| | - W. E. Bunney
- 0000 0001 0668 7243grid.266093.8Department of Psychiatry and Human Behavior. School of Medicine, University of California Irvine, Irvine, USA
| | - M. P. Vawter
- 0000 0001 0668 7243grid.266093.8Department of Psychiatry and Human Behavior. School of Medicine, University of California Irvine, Irvine, USA
| | - A. Sequeira
- 0000 0001 0668 7243grid.266093.8Department of Psychiatry and Human Behavior. School of Medicine, University of California Irvine, Irvine, USA
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62
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Saiki S, Sasazawa Y, Fujimaki M, Kamagata K, Kaga N, Taka H, Li Y, Souma S, Hatano T, Imamichi Y, Furuya N, Mori A, Oji Y, Ueno SI, Nojiri S, Miura Y, Ueno T, Funayama M, Aoki S, Hattori N. A metabolic profile of polyamines in parkinson disease: A promising biomarker. Ann Neurol 2019; 86:251-263. [PMID: 31155745 PMCID: PMC6772170 DOI: 10.1002/ana.25516] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 05/31/2019] [Accepted: 05/31/2019] [Indexed: 12/27/2022]
Abstract
Objective Aging is the highest risk factor for Parkinson disease (PD). Under physiological conditions, spermidine and spermine experimentally enhance longevity via autophagy induction. Accordingly, we evaluated the ability of each polyamine metabolite to act as an age‐related, diagnostic, and severity‐associated PD biomarker. Methods Comprehensive metabolome analysis of plasma was performed in Cohort A (controls, n = 45; PD, n = 145), followed by analysis of 7 polyamine metabolites in Cohort B (controls, n = 49; PD, n = 186; progressive supranuclear palsy, n = 19; Alzheimer disease, n = 23). Furthermore, 20 patients with PD who were successively examined within Cohort B were studied using diffusion tensor imaging (DTI). Association of each polyamine metabolite with disease severity was assessed according to Hoehn and Yahr stage (H&Y) and Unified Parkinson's Disease Rating Scale motor section (UPDRS‐III). Additionally, the autophagy induction ability of each polyamine metabolite was examined in vitro in various cell lines. Results In Cohort A, N8‐acetylspermidine and N‐acetylputrescine levels were significantly and mildly elevated in PD, respectively. In Cohort B, spermine levels and spermine/spermidine ratio were significantly reduced in PD, concomitant with hyperacetylation. Furthermore, N1,N8‐diacetylspermidine levels had the highest diagnostic value, and correlated with H&Y, UPDRS‐III, and axonal degeneration quantified by DTI. The spermine/spermidine ratio in controls declined with age, but was consistently suppressed in PD. Among polyamine metabolites, spermine was the strongest autophagy inducer, especially in SH‐SY5Y cells. No significant genetic variations in 5 genes encoding enzymes associated with spermine/spermidine metabolism were detected compared with controls. Interpretation Spermine synthesis and N1,N8‐diacetylspermidine may respectively be useful diagnostic and severity‐associated biomarkers for PD. ANN NEUROL 2019;86:251–263
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Affiliation(s)
- Shinji Saiki
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yukiko Sasazawa
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Motoki Fujimaki
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Koji Kamagata
- Department of Radiology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Naoko Kaga
- Laboratory of Proteomics and Biomolecular Science, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hikari Taka
- Laboratory of Proteomics and Biomolecular Science, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yuanzhe Li
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Sanae Souma
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Taku Hatano
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yoko Imamichi
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Norihiko Furuya
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Division for Development of Autophagy Modulating Drugs, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akio Mori
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yutaka Oji
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shin-Ichi Ueno
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shuko Nojiri
- Clinical Research Center, Juntendo University, Tokyo, Japan
| | - Yoshiki Miura
- Laboratory of Proteomics and Biomolecular Science, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takashi Ueno
- Laboratory of Proteomics and Biomolecular Science, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Manabu Funayama
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Laboratory of Genomic Medicine, Center for Genomic and Regenerative Medicine, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Shigeki Aoki
- Department of Radiology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Division for Development of Autophagy Modulating Drugs, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Laboratory of Genomic Medicine, Center for Genomic and Regenerative Medicine, Graduate School of Medicine, Juntendo University, Tokyo, Japan
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Sandusky-Beltran LA, Kovalenko A, Ma C, Calahatian JIT, Placides DS, Watler MD, Hunt JB, Darling AL, Baker JD, Blair LJ, Martin MD, Fontaine SN, Dickey CA, Lussier AL, Weeber EJ, Selenica MLB, Nash KR, Gordon MN, Morgan D, Lee DC. Spermidine/spermine-N 1-acetyltransferase ablation impacts tauopathy-induced polyamine stress response. Alzheimers Res Ther 2019; 11:58. [PMID: 31253191 PMCID: PMC6599347 DOI: 10.1186/s13195-019-0507-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 05/21/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Tau stabilizes microtubules; however, in Alzheimer's disease (AD) and tauopathies, tau becomes hyperphosphorylated, aggregates, and results in neuronal death. Our group recently uncovered a unique interaction between polyamine metabolism and tau fate. Polyamines exert an array of physiological effects that support neuronal function and cognitive processing. Specific stimuli can elicit a polyamine stress response (PSR), resulting in altered central polyamine homeostasis. Evidence suggests that elevations in polyamines following a short-term stressor are beneficial; however, persistent stress and subsequent PSR activation may lead to maladaptive polyamine dysregulation, which is observed in AD, and may contribute to neuropathology and disease progression. METHODS Male and female mice harboring tau P301L mutation (rTg4510) were examined for a tau-induced central polyamine stress response (tau-PSR). The direct effect of tau-PSR byproducts on tau fibrillization and oligomerization were measured using a thioflavin T assay and a N2a split superfolder GFP-Tau (N2a-ssGT) cell line, respectively. To therapeutically target the tau-PSR, we bilaterally injected caspase 3-cleaved tau truncated at aspartate 421 (AAV9 Tau ΔD421) into the hippocampus and cortex of spermidine/spermine-N1-acetyltransferase (SSAT), a key regulator of the tau-PSR, knock out (SSAT-/-), and wild type littermates, and the effects on tau neuropathology, polyamine dysregulation, and behavior were measured. Lastly, cellular models were employed to further examine how SSAT repression impacted tau biology. RESULTS Tau induced a unique tau-PSR signature in rTg4510 mice, notably in the accumulation of acetylated spermidine. In vitro, higher-order polyamines prevented tau fibrillization but acetylated spermidine failed to mimic this effect and even promoted fibrillization and oligomerization. AAV9 Tau ΔD421 also elicited a unique tau-PSR in vivo, and targeted disruption of SSAT prevented the accumulation of acetylated polyamines and impacted several tau phospho-epitopes. Interestingly, SSAT knockout mice presented with altered behavior in the rotarod task, the elevated plus maze, and marble burying task, thus highlighting the impact of polyamine homeostasis within the brain. CONCLUSION These data represent a novel paradigm linking tau pathology and polyamine dysfunction and that targeting specific arms within the polyamine pathway may serve as new targets to mitigate certain components of the tau phenotype.
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Affiliation(s)
- Leslie A. Sandusky-Beltran
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Pharmaceutical Sciences, University of South Florida, 4001 E. Fletcher Ave, Tampa, FL 33613 USA
- 0000 0004 1936 8753grid.137628.9Neuroscience Institute, Department of Neuroscience and Physiology, New York University School of Medicine, 1 Park Avenue, New York, NY 10016 USA
| | - Andrii Kovalenko
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Pharmaceutical Sciences, University of South Florida, 4001 E. Fletcher Ave, Tampa, FL 33613 USA
| | - Chao Ma
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33613 USA
| | - John Ivan T. Calahatian
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Pharmaceutical Sciences, University of South Florida, 4001 E. Fletcher Ave, Tampa, FL 33613 USA
| | - Devon S. Placides
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Pharmaceutical Sciences, University of South Florida, 4001 E. Fletcher Ave, Tampa, FL 33613 USA
| | - Mallory D. Watler
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Pharmaceutical Sciences, University of South Florida, 4001 E. Fletcher Ave, Tampa, FL 33613 USA
| | - Jerry B. Hunt
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Pharmaceutical Sciences, University of South Florida, 4001 E. Fletcher Ave, Tampa, FL 33613 USA
| | - April L. Darling
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Medicine, University of South Florida, Tampa, FL 33613 USA
| | - Jeremy D. Baker
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Medicine, University of South Florida, Tampa, FL 33613 USA
| | - Laura J. Blair
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Medicine, University of South Florida, Tampa, FL 33613 USA
| | - Mackenzie D. Martin
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Medicine, University of South Florida, Tampa, FL 33613 USA
| | - Sarah N. Fontaine
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Medicine, University of South Florida, Tampa, FL 33613 USA
| | - Chad A. Dickey
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Medicine, University of South Florida, Tampa, FL 33613 USA
| | - April L. Lussier
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33613 USA
| | - Edwin J. Weeber
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33613 USA
| | - Maj-Linda B. Selenica
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Pharmaceutical Sciences, University of South Florida, 4001 E. Fletcher Ave, Tampa, FL 33613 USA
| | - Kevin R. Nash
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33613 USA
| | - Marcia N. Gordon
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33613 USA
- 0000 0001 2150 1785grid.17088.36Department of Translational Science & Molecular Medicine, Michigan State University, 400 Monroe Ave NW, Grand Rapids, MI 49503 USA
| | - Dave Morgan
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33613 USA
- 0000 0001 2150 1785grid.17088.36Department of Translational Science & Molecular Medicine, Michigan State University, 400 Monroe Ave NW, Grand Rapids, MI 49503 USA
| | - Daniel C. Lee
- 0000 0001 2353 285Xgrid.170693.aByrd Alzheimer’s Institute, Department of Pharmaceutical Sciences, University of South Florida, 4001 E. Fletcher Ave, Tampa, FL 33613 USA
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Thayer JA, Awad O, Hegdekar N, Sarkar C, Tesfay H, Burt C, Zeng X, Feldman RA, Lipinski MM. The PARK10 gene USP24 is a negative regulator of autophagy and ULK1 protein stability. Autophagy 2019; 16:140-153. [PMID: 30957634 PMCID: PMC6984603 DOI: 10.1080/15548627.2019.1598754] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Recent studies indicate a causative relationship between defects in autophagy and dopaminergic neuron degeneration in Parkinson disease (PD). However, it is not fully understood how autophagy is regulated in the context of PD. Here we identify USP24 (ubiquitin specific peptidase 24), a gene located in the PARK10 (Parkinson disease 10 [susceptibility]) locus associated with late onset PD, as a novel negative regulator of autophagy. Our data indicate that USP24 regulates autophagy by affecting ubiquitination and stability of the ULK1 protein. Knockdown of USP24 in cell lines and in human induced-pluripotent stem cells (iPSC) differentiated into dopaminergic neurons resulted in elevated ULK1 protein levels and increased autophagy flux in a manner independent of MTORC1 but dependent on the class III phosphatidylinositol 3-kinase (PtdIns3K) activity. Surprisingly, USP24 knockdown also improved neurite extension and/or maintenance in aged iPSC-derived dopaminergic neurons. Furthermore, we observed elevated levels of USP24 in the substantia nigra of a subpopulation of idiopathic PD patients, suggesting that USP24 may negatively regulate autophagy in PD. Abbreviations: Bafilomycin/BafA: bafilomycin A1; DUB: deubiquitinating enzyme; iPSC: induced pluripotent stem cells; MTOR: mechanistic target of rapamycin kinase; MTORC1: MTOR complex 1; nt: non-targeting; PD: Parkinson disease; p-ATG13: phospho-ATG13; PtdIns3P: phosphatidylinositol 3-phosphate; RPS6: ribosomal protein S6; SNPs: single nucleotide polymorphisms; TH: tyrosine hydroxylase; USP24: ubiquitin specific peptidase 24
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Affiliation(s)
- Julia A Thayer
- Department of Anesthesiology & Shock, Trauma and Anesthesiology Research Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Ola Awad
- Department of Microbiology and Immunology
| | - Nivedita Hegdekar
- Department of Anesthesiology & Shock, Trauma and Anesthesiology Research Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Chinmoy Sarkar
- Department of Anesthesiology & Shock, Trauma and Anesthesiology Research Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Henok Tesfay
- Department of Anesthesiology & Shock, Trauma and Anesthesiology Research Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Cameran Burt
- Department of Anesthesiology & Shock, Trauma and Anesthesiology Research Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | | | - Marta M Lipinski
- Department of Anesthesiology & Shock, Trauma and Anesthesiology Research Center, University of Maryland School of Medicine, Baltimore, MD, USA.,Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
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65
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Ramos-Molina B, Queipo-Ortuño MI, Lambertos A, Tinahones FJ, Peñafiel R. Dietary and Gut Microbiota Polyamines in Obesity- and Age-Related Diseases. Front Nutr 2019; 6:24. [PMID: 30923709 PMCID: PMC6426781 DOI: 10.3389/fnut.2019.00024] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 02/20/2019] [Indexed: 12/14/2022] Open
Abstract
The polyamines putrescine, spermidine, and spermine are widely distributed polycationic compounds essential for cellular functions. Intracellular polyamine pools are tightly regulated by a complex regulatory mechanism involving de novo biosynthesis, catabolism, and transport across the plasma membrane. In mammals, both the production of polyamines and their uptake from the extracellular space are controlled by a set of proteins named antizymes and antizyme inhibitors. Dysregulation of polyamine levels has been implicated in a variety of human pathologies, especially cancer. Additionally, decreases in the intracellular and circulating polyamine levels during aging have been reported. The differences in the polyamine content existing among tissues are mainly due to the endogenous polyamine metabolism. In addition, a part of the tissue polyamines has its origin in the diet or their production by the intestinal microbiome. Emerging evidence has suggested that exogenous polyamines (either orally administrated or synthetized by the gut microbiota) are able to induce longevity in mice, and that spermidine supplementation exerts cardioprotective effects in animal models. Furthermore, the administration of either spermidine or spermine has been shown to be effective for improving glucose homeostasis and insulin sensitivity and reducing adiposity and hepatic fat accumulation in diet-induced obesity mouse models. The exogenous addition of agmatine, a cationic molecule produced through arginine decarboxylation by bacteria and plants, also exerts significant effects on glucose metabolism in obese models, as well as cardioprotective effects. In this review, we will discuss some aspects of polyamine metabolism and transport, how diet can affect circulating and local polyamine levels, and how the modulation of either polyamine intake or polyamine production by gut microbiota can be used for potential therapeutic purposes.
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Affiliation(s)
- Bruno Ramos-Molina
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research of Malaga, University and Malaga, Malaga, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - Maria Isabel Queipo-Ortuño
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III (ISCIII), Madrid, Spain.,Department of Medical Oncology, Virgen de la Victoria University Hospital, Institute of Biomedical Research of Malaga, University and Malaga, Malaga, Spain
| | - Ana Lambertos
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain.,Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
| | - Francisco J Tinahones
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research of Malaga, University and Malaga, Malaga, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - Rafael Peñafiel
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain.,Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
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Rana HK, Akhtar MR, Ahmed MB, Liò P, Quinn JM, Huq F, Moni MA. Genetic effects of welding fumes on the progression of neurodegenerative diseases. Neurotoxicology 2019; 71:93-101. [DOI: 10.1016/j.neuro.2018.12.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/03/2018] [Accepted: 12/05/2018] [Indexed: 12/14/2022]
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Pichavaram P, Palani CD, Patel C, Xu Z, Shosha E, Fouda AY, Caldwell RB, Narayanan SP. Targeting Polyamine Oxidase to Prevent Excitotoxicity-Induced Retinal Neurodegeneration. Front Neurosci 2019; 12:956. [PMID: 30686964 PMCID: PMC6335392 DOI: 10.3389/fnins.2018.00956] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 11/30/2018] [Indexed: 12/21/2022] Open
Abstract
Dysfunction of retinal neurons is a major cause of vision impairment in blinding diseases that affect children and adults worldwide. Cellular damage resulting from polyamine catabolism has been demonstrated to be a major player in many neurodegenerative conditions. We have previously shown that inhibition of polyamine oxidase (PAO) using MDL 72527 significantly reduced retinal neurodegeneration and cell death signaling pathways in hyperoxia-mediated retinopathy. In the present study, we investigated the impact of PAO inhibition in limiting retinal neurodegeneration in a model of NMDA (N-Methyl-D-aspartate)-induced excitotoxicity. Adult mice (8–10 weeks old) were given intravitreal injections (20 nmoles) of NMDA or NMLA (N-Methyl-L-aspartate, control). Intraperitoneal injection of MDL 72527 (40 mg/kg body weight/day) or vehicle (normal saline) was given 24 h before NMDA or NMLA treatment and continued until the animals were sacrificed (varied from 1 to 7 days). Analyses of retinal ganglion cell (RGC) layer cell survival was performed on retinal flatmounts. Retinal cryostat sections were prepared for immunostaining, TUNEL assay and retinal thickness measurements. Fresh frozen retinal samples were used for Western blotting analysis. A marked decrease in the neuronal survival in the RGC layer was observed in NMDA treated retinas compared to their NMLA treated controls, as studied by NeuN immunostaining of retinal flatmounts. Treatment with MDL 72527 significantly improved survival of NeuN positive cells in the NMDA treated retinas. Excitotoxicity induced neurodegeneration was also demonstrated by reduced levels of synaptophysin and degeneration of inner retinal neurons in NMDA treated retinas compared to controls. TUNEL labeling studies showed increased cell death in the NMDA treated retinas. However, treatment with MDL 72527 markedly reduced these changes. Analysis of signaling pathways during excitotoxic injury revealed the downregulation of pro-survival signaling molecules p-ERK and p-Akt, and the upregulation of a pro-apoptotic molecule BID, which were normalized with PAO inhibition. Our data demonstrate that inhibition of polyamine oxidase blocks NMDA-induced retinal neurodegeneration and promotes cell survival, thus offering a new therapeutic target for retinal neurodegenerative disease conditions.
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Affiliation(s)
- Prahalathan Pichavaram
- Vision Discovery Institute, Augusta University, Augusta, GA, United States.,College of Allied Health Sciences, Augusta University, Augusta, GA, United States
| | - Chithra Devi Palani
- Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, GA, United States
| | - Chintan Patel
- Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States
| | - Zhimin Xu
- Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States
| | - Esraa Shosha
- Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States
| | - Abdelrahman Y Fouda
- Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States
| | - Ruth B Caldwell
- Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,VA Medical Center, Augusta, GA, United States
| | - Subhadra Priya Narayanan
- Vision Discovery Institute, Augusta University, Augusta, GA, United States.,College of Allied Health Sciences, Augusta University, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia, Augusta, GA, United States.,VA Medical Center, Augusta, GA, United States
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From Yeast to Humans: Leveraging New Approaches in Yeast to Accelerate Discovery of Therapeutic Targets for Synucleinopathies. Methods Mol Biol 2019; 2049:419-444. [PMID: 31602625 DOI: 10.1007/978-1-4939-9736-7_24] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Neurodegenerative diseases (ND) represent a growing, global health crisis, one that lacks any disease-modifying therapeutic strategy. This critical need for new therapies must be met with an exhaustive approach to exploit all tools available. A yeast (Saccharomyces cerevisiae) model of α-synuclein toxicity-the protein causally linked to Parkinson's disease and other synucleinopathies-offers a powerful approach that takes advantage of the unique offerings of this system: tractable genetics, robust high-throughput screening strategies, unparalleled data repositories, powerful computational tools, and extensive evolutionary conservation of fundamental biological pathways. These attributes have enabled genetic and small molecule screens that have revealed toxic phenotypes and drug targets that translate directly to patient-derived iPSC neurons. Extending these insights, recent advances in genetic network analyses have generated the first "humanized" α-synuclein network, which has identified druggable proteins and led to validation of the toxic phenotypes in patient-derived cells. Unbiased phenotypic small molecule screens can identify compounds targeting critical proteins within α-synuclein networks. While identification of direct drug targets for phenotypic screen hits represents a bottleneck, high-throughput chemical genetic methods provide a means to uncover cellular targets and pathways for large numbers of compounds in parallel. Taken together, the yeast α-synuclein model and associated tools can reveal insights into underlying cellular pathologies, lead molecules and their cognate targets, and strategies to translate mechanisms of toxicity and cytoprotection into complex neuronal systems.
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Vetel S, Sérrière S, Vercouillie J, Vergote J, Chicheri G, Deloye JB, Dollé F, Bodard S, Tronel C, Nadal-Desbarats L, Lefèvre A, Emond P, Chalon S. Extensive exploration of a novel rat model of Parkinson's disease using partial 6-hydroxydopamine lesion of dopaminergic neurons suggests new therapeutic approaches. Synapse 2018; 73:e22077. [DOI: 10.1002/syn.22077] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/12/2018] [Accepted: 10/15/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Steven Vetel
- UMR 1253, iBrain, Université de Tours, Inserm; Tours France
| | | | - Johnny Vercouillie
- UMR 1253, iBrain, Université de Tours, Inserm; Tours France
- INSERM CIC 1415, University Hospital; Tours France
| | - Jackie Vergote
- UMR 1253, iBrain, Université de Tours, Inserm; Tours France
| | | | | | - Frédéric Dollé
- CEA, Institut des Sciences du Vivant Frédéric Joliot, Service hospitalier Frédéric Joliot, Université Paris-Saclay; Orsay France
| | - Sylvie Bodard
- UMR 1253, iBrain, Université de Tours, Inserm; Tours France
| | - Claire Tronel
- UMR 1253, iBrain, Université de Tours, Inserm; Tours France
| | | | | | - Patrick Emond
- UMR 1253, iBrain, Université de Tours, Inserm; Tours France
- CHRU Tours; Tours France
| | - Sylvie Chalon
- UMR 1253, iBrain, Université de Tours, Inserm; Tours France
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Vijayan B, Raj V, Nandakumar S, Kishore A, Thekkuveettil A. Spermine protects alpha-synuclein expressing dopaminergic neurons from manganese-induced degeneration. Cell Biol Toxicol 2018; 35:147-159. [PMID: 30673990 DOI: 10.1007/s10565-018-09449-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 10/16/2018] [Indexed: 12/14/2022]
Abstract
Manganese exposure is among the many environmental risk factors linked to the progression of neurodegenerative diseases, such as manganese-induced parkinsonism. In animal models, chronic exposure to manganese causes loss of cell viability, neurodegeneration, and functional deficits. Polyamines, such as spermine, have been shown to rescue animals from age-induced neurodegeneration in an autophagy-dependent manner; nonetheless, it is not understood whether polyamines can prevent manganese-induced toxicity. In this study, we used two model systems, the Caenorhabditis elegans UA44 strain and SK-MEL-28 cells, both expressing the protein alpha-synuclein (α-syn) to determine whether spermine could ameliorate manganese-induced toxicity. Manganese caused a substantial reduction in the viability of SK-MEL-28 cells and hastened neurodegeneration in the UA44 strain. Spermine protected both the SK-MEL-28 cells and the UA44 strain from manganese-induced toxicity. Spermine also reduced the age-associated neurodegeneration observed in the UA44 strain compared with a control strain without α-syn expression and led to improved avoidance behavior in a functional assay. Treatment with berenil, an inhibitor of polyamine catabolism, which leads to increased intracellular polyamine levels, also showed similar cellular protection against manganese toxicity. While both translation blocker cycloheximide and autophagy blocker chloroquine caused a reduction in the cytoprotective effect of spermine, transcription blocker actinomycin D had no effect. This study provides new insights on the effect of spermine in preventing manganese-induced toxicity, which is most likely via translational regulation of several candidate genes, including those of autophagy. Thus, our results indicate that polyamines positively influence neuronal health, even when exposed to high levels of manganese and α-syn, and supplementing polyamines through diet might delay the onset of diseases involving degeneration of dopaminergic neurons.
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Affiliation(s)
- Bejoy Vijayan
- Comprehensive Care Centre for Movement Disorders, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
| | - Vishnu Raj
- Division of Molecular Medicine, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
| | - Swapna Nandakumar
- Comprehensive Care Centre for Movement Disorders, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
| | - Asha Kishore
- Comprehensive Care Centre for Movement Disorders, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India
| | - Anoopkumar Thekkuveettil
- Division of Molecular Medicine, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.
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Teijido O, Cacabelos R. Pharmacoepigenomic Interventions as Novel Potential Treatments for Alzheimer's and Parkinson's Diseases. Int J Mol Sci 2018; 19:E3199. [PMID: 30332838 PMCID: PMC6213964 DOI: 10.3390/ijms19103199] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/05/2018] [Accepted: 10/08/2018] [Indexed: 12/22/2022] Open
Abstract
Cerebrovascular and neurodegenerative disorders affect one billion people around the world and result from a combination of genomic, epigenomic, metabolic, and environmental factors. Diagnosis at late stages of disease progression, limited knowledge of gene biomarkers and molecular mechanisms of the pathology, and conventional compounds based on symptomatic rather than mechanistic features, determine the lack of success of current treatments, including current FDA-approved conventional drugs. The epigenetic approach opens new avenues for the detection of early presymptomatic pathological events that would allow the implementation of novel strategies in order to stop or delay the pathological process. The reversibility and potential restoring of epigenetic aberrations along with their potential use as targets for pharmacological and dietary interventions sited the use of epidrugs as potential novel candidates for successful treatments of multifactorial disorders involving neurodegeneration. This manuscript includes a description of the most relevant epigenetic mechanisms involved in the most prevalent neurodegenerative disorders worldwide, as well as the main potential epigenetic-based compounds under investigation for treatment of those disorders and their limitations.
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Affiliation(s)
- Oscar Teijido
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, 15165 La Coruña, Spain.
| | - Ramón Cacabelos
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, 15165 La Coruña, Spain.
- Chair of Genomic Medicine, Continental University Medical School, Huancayo 12000, Peru.
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Ramos-Molina B, Lambertos A, Peñafiel R. Antizyme Inhibitors in Polyamine Metabolism and Beyond: Physiopathological Implications. ACTA ACUST UNITED AC 2018; 6:medsci6040089. [PMID: 30304856 PMCID: PMC6313458 DOI: 10.3390/medsci6040089] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 10/02/2018] [Accepted: 10/04/2018] [Indexed: 12/25/2022]
Abstract
The intracellular levels of polyamines, cationic molecules involved in a myriad of cellular functions ranging from cellular growth, differentiation and apoptosis, is precisely regulated by antizymes and antizyme inhibitors via the modulation of the polyamine biosynthetic and transport systems. Antizymes, which are mainly activated upon high polyamine levels, inhibit ornithine decarboxylase (ODC), the key enzyme of the polyamine biosynthetic route, and exert a negative control of polyamine intake. Antizyme inhibitors (AZINs), which are proteins highly homologous to ODC, selectively interact with antizymes, preventing their action on ODC and the polyamine transport system. In this review, we will update the recent advances on the structural, cellular and physiological functions of AZINs, with particular emphasis on the action of these proteins in the regulation of polyamine metabolism. In addition, we will describe emerging evidence that suggests that AZINs may also have polyamine-independent effects on cells. Finally, we will discuss how the dysregulation of AZIN activity has been implicated in certain human pathologies such as cancer, fibrosis or neurodegenerative diseases.
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Affiliation(s)
- Bruno Ramos-Molina
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain.
- Laboratory of Cellular and Molecular Endocrinology, Institute of Biomedical Research in Malaga (IBIMA), Virgen de la Victoria University Hospital, 29010 Málaga, Spain.
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain.
| | - Ana Lambertos
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain.
- Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain.
| | - Rafael Peñafiel
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain.
- Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain.
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Potential Therapeutic Drugs for Parkinson's Disease Based on Data Mining and Bioinformatics Analysis. PARKINSONS DISEASE 2018; 2018:3464578. [PMID: 30370044 PMCID: PMC6189653 DOI: 10.1155/2018/3464578] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/25/2018] [Accepted: 09/04/2018] [Indexed: 01/12/2023]
Abstract
The objective is to search potential therapeutic drugs for Parkinson's disease based on data mining and bioinformatics analysis and providing new ideas for research studies on “new application of conventional drugs.” Method differential gene candidates were obtained based on data mining of genes of PD brain tissue, original gene data analysis, differential gene crossover, pathway enrichment analysis, and protein interaction, and potential therapeutic drugs for Parkinson's disease were obtained through drug-gene relationship. Result. 250 common differential genes were obtained from 3 research studies, and 31 differential gene candidates were obtained through gene enrichment analysis and protein interaction. 10 drugs such as metformin hydrochloride were directly or indirectly correlated to differential gene candidates. Conclusion. Potential therapeutic drugs that may be used for prevention and treatment of Parkinson's disease were discovered through data mining and bioinformatics analysis, which provided new ideas for research and development of drugs. Results showed that metformin hydrochloride and other drugs had certain therapeutical effect on Parkinson's disease, and melbine (DMBG) can be used for treatment of Parkinson's disease and type 2 diabetes patients.
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Jain V, Raina S, Gheware AP, Singh R, Rehman R, Negi V, Murray Stewart T, Mabalirajan U, Mishra AK, Casero RA, Agrawal A, Ghosh B. Reduction in polyamine catabolism leads to spermine-mediated airway epithelial injury and induces asthma features. Allergy 2018; 73:2033-2045. [PMID: 29729200 DOI: 10.1111/all.13472] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Airway epithelial injury is a crucial component of acute and severe asthma pathogenesis and a promising target for treatment of refractory asthma. However, the underlying mechanism of epithelial injury remains poorly explored. Although high levels of polyamines, mainly spermine, have been found in asthma and comorbidity, their role in airway epithelial injury and the cause of their altered levels in asthma have not been explored. METHODS We measured key polyamine metabolic enzymes in lung samples from normal and asthmatic subjects and in mice with OVA-induced allergic airway inflammation (AAI). Polyamine metabolism was modulated using pharmacologic/genetic modulators. Epithelial stress and apoptosis were measured by TSLP levels and TUNEL assay, respectively. RESULTS We found loss of the polyamine catabolic enzymes spermidine/spermine-N (1)-acetyltransferase-1 (SAT1) and spermine oxidase (SMOX) predominantly in bronchial epithelial cells (BECs) of human asthmatic lung samples and mice with AAI. In naïve mice, SAT1 or SMOX knockdown led to airway hyper-responsiveness, remodeling, and BEC apoptosis. Conversely, in mice with AAI, overexpression of either SAT1 or SMOX alleviated asthmatic features and reduced TSLP levels and BEC apoptosis. Similarly, while pharmacological induction of SAT1 and SMOX using the polyamine analogue bis(ethyl)norspermine (BENSPM) alleviated asthmatic features with reduced TSLP levels and BEC apoptosis, pharmacological inhibition of these enzymes using BERENIL or MDL72527, respectively, worsened them. Spermine accumulation in lungs correlated with BEC apoptosis, and spermine treatment caused apoptosis of human BEAS-2B cells in vitro. CONCLUSIONS Spermine induces BEC injury. Induction of polyamine catabolism may represent a novel therapeutic approach for asthma via reversing BEC stress.
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Affiliation(s)
- V. Jain
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - S. Raina
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - A. P. Gheware
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - R. Singh
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - R. Rehman
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - V. Negi
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - T. Murray Stewart
- The Sidney Kimmel Comprehensive Cancer Center School of Medicine Johns Hopkins University Baltimore MD USA
| | - U. Mabalirajan
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - A. K. Mishra
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - R. A. Casero
- The Sidney Kimmel Comprehensive Cancer Center School of Medicine Johns Hopkins University Baltimore MD USA
| | - A. Agrawal
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - B. Ghosh
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
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Fernandes J, Chandler JD, Liu KH, Uppal K, Go YM, Jones DP. Putrescine as indicator of manganese neurotoxicity: Dose-response study in human SH-SY5Y cells. Food Chem Toxicol 2018; 116:272-280. [PMID: 29684492 PMCID: PMC6008158 DOI: 10.1016/j.fct.2018.04.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 03/31/2018] [Accepted: 04/18/2018] [Indexed: 02/06/2023]
Abstract
Disrupted polyamine metabolism with elevated putrescine is associated with neuronal dysfunction. Manganese (Mn) is an essential nutrient that causes neurotoxicity in excess, but methods to evaluate biochemical responses to high Mn are limited. No information is available on dose-response effects of Mn on putrescine abundance and related polyamine metabolism. The present research was to test the hypothesis that Mn causes putrescine accumulation over a physiologically adequate to toxic concentration range in a neuronal cell line. We used human SH-SY5Y neuroblastoma cells treated with MnCl2 under conditions that resulted in cell death or no cell death after 48 h. Putrescine and other metabolites were analyzed by liquid chromatography-ultra high-resolution mass spectrometry. Putrescine-related pathway changes were identified with metabolome-wide association study (MWAS). Results show that Mn caused a dose-dependent increase in putrescine over a non-toxic to toxic concentration range. MWAS of putrescine showed positive correlations with the polyamine metabolite N8-acetylspermidine, methionine-related precursors, and arginine-associated urea cycle metabolites, while putrescine was negatively correlated with γ-aminobutyric acid (GABA)-related and succinate-related metabolites (P < 0.001, FDR < 0.01). These data suggest that measurement of putrescine and correlated metabolites may be useful to study effects of Mn intake in the high adequate to UL range.
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Affiliation(s)
- Jolyn Fernandes
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Joshua D Chandler
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Ken H Liu
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Karan Uppal
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Young-Mi Go
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, GA, 30322, USA.
| | - Dean P Jones
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University, Atlanta, GA, 30322, USA.
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Ren C, Hu X, Zhou Q. Graphene Oxide Quantum Dots Reduce Oxidative Stress and Inhibit Neurotoxicity In Vitro and In Vivo through Catalase-Like Activity and Metabolic Regulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700595. [PMID: 29876205 PMCID: PMC5978962 DOI: 10.1002/advs.201700595] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 10/21/2017] [Indexed: 05/19/2023]
Abstract
Both oxidative stress and neurotoxicity are huge challenges to human health, and effective methods and agents for resisting these adverse effects are limited, especially in vivo. It is shown here that, compared to large graphene oxide (GO) nanosheets, GO quantum dots (GOQDs), as nanozymes, efficiently reduce reactive oxygen species (ROS) and H2O2 in 1-methyl-4-phenyl-pyridinium ion (MPP+)-induced PC12 cells. In addition, GOQDs exert neuroprotective effects in a neuronal cell model by decreasing apoptosis and α-synuclein. GOQDs also efficiently diminish ROS, apoptosis, and mitochondrial damage in zebrafish treated with MPP+. Furthermore, GOQDs-pretreated zebrafish shows increased locomotive activity and Nissl bodies in the brain, confirming that GOQDs ameliorate MPP+-induced neurotoxicity, in contrast to GO nanosheets. GOQDs contribute to neurotoxic amelioration by increasing amino acid metabolism, decreasing tricarboxylic acid cycle activity, and reducing steroid biosynthesis, fatty acid biosynthesis, and galactose metabolic pathway activity, which are related to antioxidation and neurotransmission. Meanwhile, H2O2 decomposition and Fenton reactions suggest the catalase-like activity of GOQDs. GOQDs can translocate into zebrafish brains and exert catalase-mimicking activity to resist oxidation in the intracellular environment. Unlike general nanomaterials, biocompatible GOQDs demonstrate their high potential for human health by reducing oxidative stress and inhibiting neurotoxicity.
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Affiliation(s)
- Chaoxiu Ren
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)Tianjin Key Laboratory of Environmental Remediation and Pollution ControlCollege of Environmental Science and EngineeringNankai UniversityTianjin300071China
| | - Xiangang Hu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)Tianjin Key Laboratory of Environmental Remediation and Pollution ControlCollege of Environmental Science and EngineeringNankai UniversityTianjin300071China
| | - Qixing Zhou
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)Tianjin Key Laboratory of Environmental Remediation and Pollution ControlCollege of Environmental Science and EngineeringNankai UniversityTianjin300071China
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Betancourt L, Rada P, Hernandez L, Araujo H, Ceballos G, Hernandez L, Tucci P, Mari Z, De Pasquale M, Paredes D. Micellar electrokinetic chromatography with laser induced fluorescence detection shows increase of putrescine in erythrocytes of Parkinson's disease patients. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1081-1082:51-57. [DOI: 10.1016/j.jchromb.2018.02.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 12/26/2017] [Accepted: 02/10/2018] [Indexed: 01/09/2023]
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Handa AK, Fatima T, Mattoo AK. Polyamines: Bio-Molecules with Diverse Functions in Plant and Human Health and Disease. Front Chem 2018; 6:10. [PMID: 29468148 PMCID: PMC5807879 DOI: 10.3389/fchem.2018.00010] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 01/15/2018] [Indexed: 12/13/2022] Open
Abstract
Biogenic amines-polyamines (PAs), particularly putrescine, spermidine and spermine are ubiquitous in all living cells. Their indispensable roles in many biochemical and physiological processes are becoming commonly known, including promoters of plant life and differential roles in human health and disease. PAs positively impact cellular functions in plants-exemplified by increasing longevity, reviving physiological memory, enhancing carbon and nitrogen resource allocation/signaling, as well as in plant development and responses to extreme environments. Thus, one or more PAs are commonly found in genomic and metabolomics studies using plants, particulary during different abiotic stresses. In humans, a general decline in PA levels with aging occurs parallel with some human health disorders. Also, high PA dose is detrimental to patients suffering from cancer, aging, innate immunity and cognitive impairment during Alzheimer and Parkinson diseases. A dichotomy exists in that while PAs may increase longevity and reduce some age-associated cardiovascular diseases, in disease conditions involving higher cellular proliferation, their intake has negative consequences. Thus, it is essential that PA levels be rigorously quantified in edible plant sources as well as in dietary meats. Such a database can be a guide for medical experts in order to recommend which foods/meats a patient may consume and which ones to avoid. Accordingly, designing both high and low polyamine diets for human consumption are in vogue, particularly in medical conditions where PA intake may be detrimental, for instance, cancer patients. In this review, literature data has been collated for the levels of the three main PAs, putrescine, spermidine and spermine, in different edible sources-vegetables, fruits, cereals, nuts, meat, sea food, cheese, milk, and eggs. Based on our analysis of vast literature, the effects of PAs in human/animal health fall into two broad, Yang and Yin, categories: beneficial for the physiological processes in healthy cells and detrimental under pathological conditions.
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Affiliation(s)
- Avtar K. Handa
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, United States
| | - Tahira Fatima
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, United States
| | - Autar K. Mattoo
- Sustainable Agricultural Systems Laboratory, Henry A. Wallace Beltsville Agricultural Research Center, Agricultural Research Service (ARS-USDA), Beltsville, MD, United States
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Borrageiro G, Haylett W, Seedat S, Kuivaniemi H, Bardien S. A review of genome-wide transcriptomics studies in Parkinson's disease. Eur J Neurosci 2017; 47:1-16. [DOI: 10.1111/ejn.13760] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 09/26/2017] [Accepted: 10/19/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Genevie Borrageiro
- Division of Molecular Biology and Human Genetics; Department of Biomedical Sciences; Faculty of Medicine and Health Sciences; Stellenbosch University; PO Box 241 Cape Town South Africa
| | - William Haylett
- Division of Molecular Biology and Human Genetics; Department of Biomedical Sciences; Faculty of Medicine and Health Sciences; Stellenbosch University; PO Box 241 Cape Town South Africa
| | - Soraya Seedat
- Department of Psychiatry; Faculty of Medicine and Health Sciences; Stellenbosch University; Cape Town South Africa
| | - Helena Kuivaniemi
- Division of Molecular Biology and Human Genetics; Department of Biomedical Sciences; Faculty of Medicine and Health Sciences; Stellenbosch University; PO Box 241 Cape Town South Africa
- Department of Psychiatry; Faculty of Medicine and Health Sciences; Stellenbosch University; Cape Town South Africa
| | - Soraya Bardien
- Division of Molecular Biology and Human Genetics; Department of Biomedical Sciences; Faculty of Medicine and Health Sciences; Stellenbosch University; PO Box 241 Cape Town South Africa
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Stott SRW, Hayat S, Carnwath T, Garas S, Sleeman JP, Barker RA. CD24 expression does not affect dopamine neuronal survival in a mouse model of Parkinson's disease. PLoS One 2017; 12:e0171748. [PMID: 28182766 PMCID: PMC5300212 DOI: 10.1371/journal.pone.0171748] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 01/25/2017] [Indexed: 12/26/2022] Open
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative condition that is characterised by the loss of specific populations of neurons in the brain. The mechanisms underlying this selective cell death are unknown but by using laser capture microdissection, the glycoprotein, CD24 has been identified as a potential marker of the populations of cells that are affected in PD. Using in situ hybridization and immunohistochemistry on sections of mouse brain, we confirmed that CD24 is robustly expressed by many of these subsets of cells. To determine if CD24 may have a functional role in PD, we modelled the dopamine cell loss of PD in Cd24 mutant mice using striatal delivery of the neurotoxin 6-OHDA. We found that Cd24 mutant mice have an anatomically normal dopamine system and that this glycoprotein does not modulate the lesion effects of 6-OHDA delivered into the striatum. We then undertook in situ hybridization studies on sections of human brain and found-as in the mouse brain-that CD24 is expressed by many of the subsets of the cells that are vulnerable in PD, but not those of the midbrain dopamine system. Finally, we sought to determine if CD24 is required for the neuroprotective effect of Glial cell-derived neurotrophic factor (GDNF) on the dopaminergic nigrostriatal pathway. Our results indicate that in the absence of CD24, there is a reduction in the protective effects of GDNF on the dopaminergic fibres in the striatum, but no difference in the survival of the cell bodies in the midbrain. While we found no obvious role for CD24 in the normal development and maintenance of the dopaminergic nigrostriatal system in mice, it may have a role in mediating the neuroprotective aspects of GDNF in this system.
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Affiliation(s)
- Simon R. W Stott
- John van Geest Centre for Brain Repair, E.D. Adrian Building, Forvie Site, Robinson Way, Cambridge, England
- * E-mail:
| | - Shaista Hayat
- John van Geest Centre for Brain Repair, E.D. Adrian Building, Forvie Site, Robinson Way, Cambridge, England
| | - Tom Carnwath
- John van Geest Centre for Brain Repair, E.D. Adrian Building, Forvie Site, Robinson Way, Cambridge, England
| | - Shaady Garas
- John van Geest Centre for Brain Repair, E.D. Adrian Building, Forvie Site, Robinson Way, Cambridge, England
| | - Jonathan P. Sleeman
- Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Roger A. Barker
- John van Geest Centre for Brain Repair, E.D. Adrian Building, Forvie Site, Robinson Way, Cambridge, England
- Wellcome Trust-MRC Stem Cell Institute, Cambridge, England
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Ghosh D, Mehra S, Sahay S, Singh PK, Maji SK. α-synuclein aggregation and its modulation. Int J Biol Macromol 2016; 100:37-54. [PMID: 27737778 DOI: 10.1016/j.ijbiomac.2016.10.021] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 10/06/2016] [Accepted: 10/09/2016] [Indexed: 12/20/2022]
Abstract
Parkinson's disease (PD) is a neurological disorder marked by the presence of cytoplasmic inclusions, Lewy bodies (LBs) and Lewy neurites (LNs) as well as the degeneration of dopamine producing neurons in the substantia nigra region of the brain. The LBs and LNs in PD are mainly composed of aggregated form of a presynaptic protein, α-synuclein (α-Syn). However, the mechanisms of α-Syn aggregation and actual aggregated species responsible for the degeneration of dopaminergic neurons have not yet been resolved. Despite the fact that α-Syn aggregation in LBs and LNs is crucial and mutations of α-Syn are associated with early onset PD, it is really a challenging task to establish a correlation between α-Syn aggregation rate and PD pathogenesis. Regardless of strong genetic contribution, PD is mostly sporadic and familial forms of the disease represent only a minor part (<10%) of all cases. The complexity in PD further increases due to the involvement of several cellular factors in the pathogenesis of the disease as well as the environmental factors associated with the risk of developing PD. Therefore, effect of these factors on α-Syn aggregation pathway and how these factors modulate the properties of wild type (WT) as well as mutated α-Syn should be collectively taken into account. The present review specifically provides an overview of recent research on α-Syn aggregation pathways and its modulation by several cellular factors potentially relevant to PD pathogenesis. We also briefly discuss about effect of environmental risk factors on α-Syn aggregation.
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Affiliation(s)
- Dhiman Ghosh
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai, Maharashtra, India.
| | - Surabhi Mehra
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai, Maharashtra, India
| | - Shruti Sahay
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai, Maharashtra, India.
| | - Pradeep K Singh
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai, Maharashtra, India
| | - Samir K Maji
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai, Maharashtra, India.
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82
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Skatchkov SN, Antonov SM, Eaton MJ. Glia and glial polyamines. Role in brain function in health and disease. BIOCHEMISTRY MOSCOW SUPPLEMENT SERIES A-MEMBRANE AND CELL BIOLOGY 2016. [DOI: 10.1134/s1990747816010116] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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83
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Lapierre LR, Kumsta C, Sandri M, Ballabio A, Hansen M. Transcriptional and epigenetic regulation of autophagy in aging. Autophagy 2016; 11:867-80. [PMID: 25836756 DOI: 10.1080/15548627.2015.1034410] [Citation(s) in RCA: 240] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Macroautophagy is a major intracellular degradation process recognized as playing a central role in cell survival and longevity. This multistep process is extensively regulated at several levels, including post-translationally through the action of conserved longevity factors such as the nutrient sensor TOR. More recently, transcriptional regulation of autophagy genes has emerged as an important mechanism for ensuring the somatic maintenance and homeostasis necessary for a long life span. Autophagy is increased in many long-lived model organisms and contributes significantly to their longevity. In turn, conserved transcription factors, particularly the helix-loop-helix transcription factor TFEB and the forkhead transcription factor FOXO, control the expression of many autophagy-related genes and are important for life-span extension. In this review, we discuss recent progress in understanding the contribution of these transcription factors to macroautophagy regulation in the context of aging. We also review current research on epigenetic changes, such as histone modification by the deacetylase SIRT1, that influence autophagy-related gene expression and additionally affect aging. Understanding the molecular regulation of macroautophagy in relation to aging may offer new avenues for the treatment of age-related diseases.
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Key Words
- AMPK, AMP-activated protein kinase
- Atg, autophagy related
- BNIP3, BCL2/adenovirus E1B 19kDa interacting protein 3
- CaN, calcineurin; HDAC, histone deacetylase
- FOXO
- HAT, histone acetyltransferase
- LC3, microtubule-associated protein 1 light chain 3
- MITF, microphthalmia-associated transcription factor
- PDPK1/2, 3-phosphoinositide dependent kinase 1/2
- PtdIns3K, phosphatidylinositol 3-kinase
- PtdIns3P, phosphatidylinositol 3-phosphate
- SIRT1
- TFEB
- TFEB, transcription factor EB
- TOR, target of rapamycin
- TSC, tuberous sclerosis complex
- UVRAG, UV radiation resistance associated.
- acetyl-CoA, acetyl coenzyme A
- autophagy
- epigenetics
- longevity
- miRNA
- transcription.
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Affiliation(s)
- Louis R Lapierre
- a Development, Aging and Regeneration Program; Sanford-Burnham Medical Research Institute ; La Jolla , CA USA
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84
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Wong JMT, Malec PA, Mabrouk OS, Ro J, Dus M, Kennedy RT. Benzoyl chloride derivatization with liquid chromatography-mass spectrometry for targeted metabolomics of neurochemicals in biological samples. J Chromatogr A 2016; 1446:78-90. [PMID: 27083258 DOI: 10.1016/j.chroma.2016.04.006] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 03/28/2016] [Accepted: 04/02/2016] [Indexed: 01/01/2023]
Abstract
Widely targeted metabolomic assays are useful because they provide quantitative data on large groups of related compounds. We report a high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method that utilizes benzoyl chloride labeling for 70 neurologically relevant compounds, including catecholamines, indoleamines, amino acids, polyamines, trace amines, antioxidants, energy compounds, and their metabolites. The method includes neurotransmitters and metabolites found in both vertebrates and insects. This method was applied to analyze microdialysate from rats, human cerebrospinal fluid, human serum, fly tissue homogenate, and fly hemolymph, demonstrating its broad versatility for multiple physiological contexts and model systems. Limits of detection for most assayed compounds were below 10nM, relative standard deviations were below 10%, and carryover was less than 5% for 70 compounds separated in 20min, with a total analysis time of 33min. This broadly applicable method provides robust monitoring of multiple analytes, utilizes small sample sizes, and can be applied to diverse matrices. The assay will be of value for evaluating normal physiological changes in metabolism in neurochemical systems. The results demonstrate the utility of benzoyl chloride labeling with HPLC-MS/MS for widely targeted metabolomics assays.
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Affiliation(s)
- Jenny-Marie T Wong
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
| | - Paige A Malec
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
| | - Omar S Mabrouk
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States; Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Jennifer Ro
- Department of Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109, United States
| | - Monica Dus
- Deparment of Molecular, Cellular, Developmental Biology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Robert T Kennedy
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States; Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, United States.
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85
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Guerra GP, Rubin MA, Mello CF. Modulation of learning and memory by natural polyamines. Pharmacol Res 2016; 112:99-118. [PMID: 27015893 DOI: 10.1016/j.phrs.2016.03.023] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 03/09/2016] [Accepted: 03/11/2016] [Indexed: 01/08/2023]
Abstract
Spermine and spermidine are natural polyamines that are produced mainly via decarboxylation of l-ornithine and the sequential transfer of aminopropyl groups from S-adenosylmethionine to putrescine by spermidine synthase and spermine synthase. Spermine and spermidine interact with intracellular and extracellular acidic residues of different nature, including nucleic acids, phospholipids, acidic proteins, carboxyl- and sulfate-containing polysaccharides. Therefore, multiple actions have been suggested for these polycations, including modulation of the activity of ionic channels, protein synthesis, protein kinases, and cell proliferation/death, within others. In this review we summarize these neurochemical/neurophysiological/morphological findings, particularly those that have been implicated in the improving and deleterious effects of spermine and spermidine on learning and memory of naïve animals in shock-motivated and nonshock-motivated tasks, from a historical perspective. The interaction with the opioid system, the facilitation and disruption of morphine-induced reward and the effect of polyamines and putative polyamine antagonists on animal models of cognitive diseases, such as Alzheimer's, Huntington, acute neuroinflammation and brain trauma are also reviewed and discussed. The increased production of polyamines in Alzheimer's disease and the biphasic nature of the effects of polyamines on memory and on the NMDA receptor are also considered. In light of the current literature on polyamines, which include the description of an inborn error of the metabolism characterized by mild-to moderate mental retardation and polyamine metabolism alterations in suicide completers, we can anticipate that polyamine targets may be important for the development of novel strategies and approaches for understanding the etiopathogenesis of important central disorders and their pharmacological treatment.
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Affiliation(s)
- Gustavo Petri Guerra
- Department of Food Technology, Federal Technological University of Paraná, Campus Medianeira, Medianeira, PR 85884-000, Brazil
| | - Maribel Antonello Rubin
- Department of Biochemistry, Center of Exact and Natural Sciences, Federal University of Santa Maria (UFSM), Santa Maria, RS 97105-900, Brazil.
| | - Carlos Fernando Mello
- Department of Physiology and Pharmacology, Center of Health Sciences, Federal University of Santa Maria (UFSM), Santa Maria, RS 97105-900, Brazil.
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86
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Jamwal S, Kumar P. Spermidine ameliorates 3-nitropropionic acid (3-NP)-induced striatal toxicity: Possible role of oxidative stress, neuroinflammation, and neurotransmitters. Physiol Behav 2016; 155:180-7. [DOI: 10.1016/j.physbeh.2015.12.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 12/10/2015] [Accepted: 12/14/2015] [Indexed: 01/22/2023]
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87
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Ferreira CR, Yannell KE, Mollenhauer B, Espy RD, Cordeiro FB, Ouyang Z, Cooks RG. Chemical profiling of cerebrospinal fluid by multiple reaction monitoring mass spectrometry. Analyst 2016; 141:5252-5. [PMID: 27517482 DOI: 10.1039/c6an01618a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report an accelerated biomarker discovery workflow and results of sample screening by mass spectrometry based on multiple reaction monitoring (MRM).
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Affiliation(s)
- Christina R. Ferreira
- Department of Chemistry and Center for Analytical Instrumentation Development (CAID)
- Purdue University
- West Lafayette
- USA
| | - Karen E. Yannell
- Department of Chemistry and Center for Analytical Instrumentation Development (CAID)
- Purdue University
- West Lafayette
- USA
| | - Brit Mollenhauer
- Paracelsus-Elena-Klinik
- Kassel
- Germany
- University Medical Center Goettingen
- Germany
| | - Ryan D. Espy
- Department of Chemistry and Center for Analytical Instrumentation Development (CAID)
- Purdue University
- West Lafayette
- USA
| | - Fernanda B. Cordeiro
- Department of Chemistry and Center for Analytical Instrumentation Development (CAID)
- Purdue University
- West Lafayette
- USA
| | - Z. Ouyang
- Weldon School of Biomedical Engineering and Department of Electrical and Computer Engineering
- Purdue University
- West Lafayette
- USA
| | - R. G. Cooks
- Department of Chemistry and Center for Analytical Instrumentation Development (CAID)
- Purdue University
- West Lafayette
- USA
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88
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Remaining Mysteries of Molecular Biology: The Role of Polyamines in the Cell. J Mol Biol 2015; 427:3389-406. [DOI: 10.1016/j.jmb.2015.06.020] [Citation(s) in RCA: 401] [Impact Index Per Article: 44.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 06/12/2015] [Accepted: 06/29/2015] [Indexed: 11/23/2022]
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89
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Schachtner LT, Sola IE, Forand D, Antonacci S, Postovit AJ, Mortimer NT, Killian DJ, Olesnicky EC. Drosophila Shep and C. elegans SUP-26 are RNA-binding proteins that play diverse roles in nervous system development. Dev Genes Evol 2015; 225:319-30. [PMID: 26271810 DOI: 10.1007/s00427-015-0514-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 08/03/2015] [Indexed: 12/14/2022]
Abstract
The Caenorhabditis elegans gene sup-26 encodes a well-conserved RNA-recognition motif-containing RNA-binding protein (RBP) that functions in dendrite morphogenesis of the PVD sensory neuron. The Drosophila ortholog of sup-26, alan shepard (shep), is expressed throughout the nervous system and has been shown to regulate neuronal remodeling during metamorphosis. Here, we extend these studies to show that sup-26 and shep are required for the development of diverse cell types within the nematode and fly nervous systems during embryonic and larval stages. We ascribe roles for sup-26 in regulating dendrite number and the expression of genes involved in mechanosensation within the nematode peripheral nervous system. We also find that in Drosophila, shep regulates dendrite length and branch order of nociceptive neurons, regulates the organization of neuronal clusters of the peripheral nervous system and the organization of axons within the ventral nerve cord. Taken together, our results suggest that shep/sup-26 orthologs play diverse roles in neural development across animal species. Moreover, we discuss potential roles for shep/sup-26 orthologs in the human nervous system.
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Affiliation(s)
- Logan T Schachtner
- Department of Biology, University of Colorado at Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO, 80918, USA
| | - Ismail E Sola
- Department of Biology, University of Colorado at Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO, 80918, USA
| | - Daniel Forand
- Department of Biology, University of Colorado at Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO, 80918, USA
| | - Simona Antonacci
- Department of Molecular Biology, Colorado College, 14 East Cache La Poudre Street, Colorado Springs, CO, 80903, USA
| | - Adam J Postovit
- Department of Biology, University of Colorado at Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO, 80918, USA
| | - Nathan T Mortimer
- Department of Biological Sciences, University of Denver, Denver, CO, 80208, USA.,School of Biological Sciences, Illinois State University, Normal, IL, 61790, USA
| | - Darrell J Killian
- Department of Molecular Biology, Colorado College, 14 East Cache La Poudre Street, Colorado Springs, CO, 80903, USA.
| | - Eugenia C Olesnicky
- Department of Biology, University of Colorado at Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO, 80918, USA.
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Jamwal S, Singh S, Kaur N, Kumar P. Protective Effect of Spermidine Against Excitotoxic Neuronal Death Induced by Quinolinic Acid in Rats: Possible Neurotransmitters and Neuroinflammatory Mechanism. Neurotox Res 2015; 28:171-84. [PMID: 26078029 DOI: 10.1007/s12640-015-9535-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/14/2015] [Accepted: 06/02/2015] [Indexed: 01/28/2023]
Abstract
Huntington disease is hyperkinetic movement disorder characterized by selective and immense degradation of GABAergic medium spiny neurons in striatum. Quinolinic acid (QA)-induced neurotoxicity involves a cascade of events such as excitotoxicity, ATP depletion, oxidative stress, neuroinflammation, as well as selective GABAergic neuronal loss. Therefore, we investigated spermidine, an endogenous molecule with free radical scavenging, anti-inflammatory, and N-methyl-D-aspartate receptor antagonistic properties, for its beneficial potential if any, in QA-induced Huntington's like symptoms in rats. Rats were administered with QA (200 nmol/2 µl saline) bilaterally on 0 day. Spermidine (5 and 10 mg/kg, p.o.) was administered for 21 days once a day. Behavioral parameters (body weight, locomotor activity, grip strength, and narrow beam walk) observations were done on 1st, 7th, 14th, and 21st day after QA treatment. On 21st day, animals were sacrificed and rat striatum was isolated for biochemical (LPO, GSH, Nitrite), neuroinflammation (TNF-α, IL-1β, and IL-6), and neurochemical analysis (GABA, glutamate, dopamine, norepinephrine, serotonin, DOPAC, HVA, 5-HIAA, adenosine, adenine, hypoxanthine, and inosine). QA treatment significantly altered body weight, locomotor activity, motor coordination, oxidative defense (increased LPO, nitrite, and decreased GSH), pro-inflammatory levels (TNF-α, IL-6 and IL-1β), GABA, glutamate, catecholamines level (norepinephrine, dopamine, and serotonin and their metabolites), and purines level (adenosine, inosine, and hypoxanthine). Spermidine (5 and 10 mg/kg, p.o.) significantly attenuated these alterations in body weight, motor impairments, oxidative stress, neuroinflammatory markers, GABA, glutamate, catecholamines, adenosine, and their metabolites levels in striatum. The neuroprotective effect of spermidine against QA-induced excitotoxic cell death is attributed to its antioxidant, N-methyl-D-aspartate receptor antagonistic, anti-inflammatory properties, and prevention of neurotransmitters alteration in striatum.
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Affiliation(s)
- Sumit Jamwal
- Department of Pharmacology, I.S.F College of Pharmacy, Ferozepur GT Road, Ghal Kalan, Moga, 142001, Punjab, India
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91
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Method designed to respect molecular heterogeneity can profoundly correct present data interpretations for genome-wide expression analysis. PLoS One 2015; 10:e0121154. [PMID: 25793610 PMCID: PMC4368820 DOI: 10.1371/journal.pone.0121154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 01/20/2015] [Indexed: 11/27/2022] Open
Abstract
Although genome-wide expression analysis has become a routine tool for gaining insight into molecular mechanisms, extraction of information remains a major challenge. It has been unclear why standard statistical methods, such as the t-test and ANOVA, often lead to low levels of reproducibility, how likely applying fold-change cutoffs to enhance reproducibility is to miss key signals, and how adversely using such methods has affected data interpretations. We broadly examined expression data to investigate the reproducibility problem and discovered that molecular heterogeneity, a biological property of genetically different samples, has been improperly handled by the statistical methods. Here we give a mathematical description of the discovery and report the development of a statistical method, named HTA, for better handling molecular heterogeneity. We broadly demonstrate the improved sensitivity and specificity of HTA over the conventional methods and show that using fold-change cutoffs has lost much information. We illustrate the especial usefulness of HTA for heterogeneous diseases, by applying it to existing data sets of schizophrenia, bipolar disorder and Parkinson’s disease, and show it can abundantly and reproducibly uncover disease signatures not previously detectable. Based on 156 biological data sets, we estimate that the methodological issue has affected over 96% of expression studies and that HTA can profoundly correct 86% of the affected data interpretations. The methodological advancement can better facilitate systems understandings of biological processes, render biological inferences that are more reliable than they have hitherto been and engender translational medical applications, such as identifying diagnostic biomarkers and drug prediction, which are more robust.
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92
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Affiliation(s)
- I-Fang Wang
- Institute of Life Science; National Defense Medical Center; Taipei, Taiwan
- Institute of Molecular Biology; Academia Sinica; Taipei, Taiwan
- Institute of Clinical Medicine; National Cheng Kung University; Tainan, Taiwan
| | - Kuen-Jer Tsai
- Institute of Clinical Medicine; National Cheng Kung University; Tainan, Taiwan
| | - Che-Kun James Shen
- Institute of Life Science; National Defense Medical Center; Taipei, Taiwan
- Institute of Molecular Biology; Academia Sinica; Taipei, Taiwan
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93
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Abstract
This review focuses on the roles of glia and polyamines (PAs) in brain function and dysfunction, highlighting how PAs are one of the principal differences between glia and neurons. The novel role of PAs, such as putrescine, spermidine, and spermine and their precursors and derivatives, is discussed. However, PAs have not yet been a focus of much glial research. They affect many neuronal and glial receptors, channels, and transporters. They are therefore key elements in the development of many diseases and syndromes, thus forming the rationale for PA-focused and glia-focused therapy for these conditions.
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Affiliation(s)
- Serguei N Skatchkov
- Department of Biochemistry, School of Medicine, Universidad, Central del Caribe, PO Box 60-327, Bayamón, PR 00960-6032, USA; Department of Physiology, School of Medicine, Universidad, Central del Caribe, PO Box 60-327, Bayamón, PR 00960-6032, USA.
| | - Michel A Woodbury-Fariña
- Department of Psychiatry, University of Puerto Rico School of Medicine, 307 Calle Eleonor Roosevelt, San Juan, PR 00918-2720, USA
| | - Misty Eaton
- Department of Biochemistry, School of Medicine, Universidad, Central del Caribe, PO Box 60-327, Bayamón, PR 00960-6032, USA
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Neidhart M, Karouzakis E, Jüngel A, Gay RE, Gay S. Inhibition of spermidine/spermine N1-acetyltransferase activity: a new therapeutic concept in rheumatoid arthritis. Arthritis Rheumatol 2014; 66:1723-33. [PMID: 24578214 DOI: 10.1002/art.38574] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 02/20/2014] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Changes in polyamine-modulated factor 1 (PMF-1) promoter methylation might favor the expression of spermidine/spermine N1-acetyltransferase 1 (SSAT-1), causing excessive consumption of S-adenosyl methionine (SAM). This study was undertaken to evaluate the effect of SSAT-1 activity inhibition, either alone or in combination with SAM. METHODS Synovial fibroblasts were isolated from patients with rheumatoid arthritis (RA) or osteoarthritis (OA). PMF-1 promoter methylation was determined by pyrosequencing. Small interfering RNAs (siRNAs) against SSAT-1 were transfected weekly in RA synovial fibroblasts (RASFs). In addition, synovial fibroblasts were treated with diminazene aceturate (DA), an inhibitor of SSAT-1. SSAT-1, 5-methylcytosine (5-MeC), adenosyl methionine decarboxylase (AMD), PMF-1, DNA methyltransferase 1 (DNMT-1), CXCL12, β1 integrin, and CD44 levels were measured by flow cytometry. Putrescine levels were determined by colorimetry. Levels of matrix metalloproteinases were measured by enzyme-linked immunosorbent assay. Cell adhesion was tested. The SCID mouse model of RA was used to monitor the invasiveness of RASFs. RESULTS RASFs showed elevated SSAT-1, AMD, and PMF-1 levels. However, PMF-1 promoter methylation was unchanged. Transfection of siRNA targeting SSAT-1 increased 5-MeC levels within 21 days. Similarly, DA increased 5-MeC levels in RASFs. In addition, DA increased the levels of DNMT-1, decreased the levels of AMD, putrescine, activation markers, and MMP-1, and altered the adhesion of RASFs. DA was more efficient in RASFs with higher levels of SSAT-1. Most interestingly, the combination of DA and SAM reduced the invasiveness of RASFs by 70%. CONCLUSION The use of DA alone or in combination with SAM/L-methionine might introduce a new therapeutic concept in RA. This is the first therapy that would directly target RASFs and thereby inhibit ongoing joint destruction.
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Affiliation(s)
- Michel Neidhart
- Zurich Center of Integrative Human Physiology, Center of Experimental Rheumatology, and University Hospital Zurich, Zurich, Switzerland
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Li MD, Burns TC, Morgan AA, Khatri P. Integrated multi-cohort transcriptional meta-analysis of neurodegenerative diseases. Acta Neuropathol Commun 2014; 2:93. [PMID: 25187168 PMCID: PMC4167139 DOI: 10.1186/s40478-014-0093-y] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 07/23/2014] [Indexed: 01/11/2023] Open
Abstract
Introduction Neurodegenerative diseases share common pathologic features including neuroinflammation, mitochondrial dysfunction and protein aggregation, suggesting common underlying mechanisms of neurodegeneration. We undertook a meta-analysis of public gene expression data for neurodegenerative diseases to identify a common transcriptional signature of neurodegeneration. Results Using 1,270 post-mortem central nervous system tissue samples from 13 patient cohorts covering four neurodegenerative diseases, we identified 243 differentially expressed genes, which were similarly dysregulated in 15 additional patient cohorts of 205 samples including seven neurodegenerative diseases. This gene signature correlated with histologic disease severity. Metallothioneins featured prominently among differentially expressed genes, and functional pathway analysis identified specific convergent themes of dysregulation. MetaCore network analyses revealed various novel candidate hub genes (e.g. STAU2). Genes associated with M1-polarized macrophages and reactive astrocytes were strongly enriched in the meta-analysis data. Evaluation of genes enriched in neurons revealed 70 down-regulated genes, over half not previously associated with neurodegeneration. Comparison with aging brain data (3 patient cohorts, 221 samples) revealed 53 of these to be unique to neurodegenerative disease, many of which are strong candidates to be important in neuropathogenesis (e.g. NDN, NAP1L2). ENCODE ChIP-seq analysis predicted common upstream transcriptional regulators not associated with normal aging (REST, RBBP5, SIN3A, SP2, YY1, ZNF143, IKZF1). Finally, we removed genes common to neurodegeneration from disease-specific gene signatures, revealing uniquely robust immune response and JAK-STAT signaling in amyotrophic lateral sclerosis. Conclusions Our results implicate pervasive bioenergetic deficits, M1-type microglial activation and gliosis as unifying themes of neurodegeneration, and identify numerous novel genes associated with neurodegenerative processes. Electronic supplementary material The online version of this article (doi:10.1186/s40478-014-0093-y) contains supplementary material, which is available to authorized users.
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96
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Huang TL, Mayence A, Vanden Eynde JJ. Some non-conventional biomolecular targets for diamidines. A short survey. Bioorg Med Chem 2014; 22:1983-92. [DOI: 10.1016/j.bmc.2014.02.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 02/19/2014] [Accepted: 02/24/2014] [Indexed: 12/24/2022]
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97
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Microarray analysis of transcriptome of medulla identifies potential biomarkers for Parkinson's disease. Int J Genomics 2013; 2013:606919. [PMID: 24350239 PMCID: PMC3853924 DOI: 10.1155/2013/606919] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 09/30/2013] [Indexed: 02/05/2023] Open
Abstract
To complement the molecular pathways contributing to Parkinson's disease (PD) and identify potential biomarkers, gene expression profiles of two regions of the medulla were compared between PD patients and control. GSE19587 containing two groups of gene expression profiles [6 dorsal motor nucleus of the vagus (DMNV) samples from PD patients and 5 from controls, 6 inferior olivary nucleus (ION) samples from PD patients and 5 from controls] was downloaded from Gene Expression Omnibus. As a result, a total of 1569 and 1647 differentially expressed genes (DEGs) were, respectively, screened in DMNV and ION with limma package of R. The functional enrichment analysis by DAVID server (the Database for Annotation, Visualization and Integrated Discovery) indicated that the above DEGs may be involved in the following processes, such as regulation of cell proliferation, positive regulation of macromolecule metabolic process, and regulation of apoptosis. Further analysis showed that there were 365 common DEGs presented in both regions (DMNV and ION), which may be further regulated by eight clusters of microRNAs retrieved with WebGestalt. The genes in the common DEGs-miRNAs regulatory network were enriched in regulation of apoptosis process via DAVID analysis. These findings could not only advance the understandings about the pathogenesis of PD, but also suggest potential biomarkers for this disease.
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98
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Lange I, Geerts D, Feith DJ, Mocz G, Koster J, Bachmann AS. Novel interaction of ornithine decarboxylase with sepiapterin reductase regulates neuroblastoma cell proliferation. J Mol Biol 2013; 426:332-46. [PMID: 24096079 DOI: 10.1016/j.jmb.2013.09.037] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 09/21/2013] [Accepted: 09/25/2013] [Indexed: 01/24/2023]
Abstract
Ornithine decarboxylase (ODC) is the sentinel enzyme in polyamine biosynthesis. Both ODC and polyamines regulate cell division, proliferation, and apoptosis. Sepiapterin reductase (SPR) catalyzes the last step in the biosynthesis of tetrahydrobiopterin (BH4), an essential cofactor of nitric oxide synthase, and has been implicated in neurological diseases but not yet in cancer. In this study, we present compelling evidence that native ODC and SPR physically interact, and we defined the individual amino acid residues involved in both enzymes using in silico protein-protein docking simulations. The resulting heterocomplex is a surprisingly compact structure, featuring two energetically and structurally equivalent binding modes both in monomer and in dimer conformations. The novel interaction between ODC and SPR proteins was confirmed under physiological conditions by co-immunoprecipitation and co-localization in neuroblastoma (NB) cells. Importantly, we showed that siRNA (small interfering RNA)-mediated knockdown of SPR expression significantly reduced endogenous ODC enzyme activity in NB cells, thus demonstrating the biological relevance of the ODC-SPR interaction. Finally, in a cohort of 88 human NB tumors, we found that high SPR mRNA expression correlated significantly with poor survival prognosis using a Kaplan-Meier analysis (log-rank test, P=5 × 10(-4)), suggesting an oncogenic role for SPR in NB tumorigenesis. In conclusion, we showed that ODC binds SPR and thus propose a new concept in which two well-characterized biochemical pathways converge via the interaction of two enzymes. We identified SPR as a novel regulator of ODC enzyme activity and, based on clinical evidence, present a model in which SPR drives ODC-mediated malignant progression in NB.
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Affiliation(s)
- Ingo Lange
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawaii at Hilo, Hilo, HI 96720, USA
| | - Dirk Geerts
- Department of Pediatric Oncology/Hematology, Sophia Children's Hospital, Erasmus University Medical Center, 3015 GE Rotterdam, The Netherlands
| | - David J Feith
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Gabor Mocz
- Pacific Biosciences Research Center, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Jan Koster
- Department of Oncogenomics, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - André S Bachmann
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawaii at Hilo, Hilo, HI 96720, USA; Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96813, USA.
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Masliah E, Dumaop W, Galasko D, Desplats P. Distinctive patterns of DNA methylation associated with Parkinson disease: identification of concordant epigenetic changes in brain and peripheral blood leukocytes. Epigenetics 2013; 8:1030-8. [PMID: 23907097 DOI: 10.4161/epi.25865] [Citation(s) in RCA: 227] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Parkinson disease (PD) is a multifactorial neurodegenerative disorder with high incidence in the elderly, where environmental and genetic factors are involved in etiology. In addition, epigenetic mechanisms, including deregulation of DNA methylation have been recently associated to PD. As accurate diagnosis cannot be achieved pre-mortem, identification of early pathological changes is crucial to enable therapeutic interventions before major neuropathological damage occurs. Here we investigated genome-wide DNA methylation in brain and blood samples from PD patients and observed a distinctive pattern of methylation involving many genes previously associated to PD, therefore supporting the role of epigenetic alterations as a molecular mechanism in neurodegeneration. Importantly, we identified concordant methylation alterations in brain and blood, suggesting that blood might hold promise as a surrogate for brain tissue to detect DNA methylation in PD and as a source for biomarker discovery.
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Affiliation(s)
- Eliezer Masliah
- Department of Neuroscience; University of California San Diego; La Jolla, CA USA; Department of Pathology; University of California San Diego; La Jolla, CA USA
| | - Wilmar Dumaop
- Department of Pathology; University of California San Diego; La Jolla, CA USA
| | - Douglas Galasko
- Department of Neuroscience; University of California San Diego; La Jolla, CA USA
| | - Paula Desplats
- Department of Neuroscience; University of California San Diego; La Jolla, CA USA
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100
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Korecka JA, van Kesteren RE, Blaas E, Spitzer SO, Kamstra JH, Smit AB, Swaab DF, Verhaagen J, Bossers K. Phenotypic characterization of retinoic acid differentiated SH-SY5Y cells by transcriptional profiling. PLoS One 2013; 8:e63862. [PMID: 23724009 PMCID: PMC3665836 DOI: 10.1371/journal.pone.0063862] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 04/04/2013] [Indexed: 11/18/2022] Open
Abstract
Multiple genetic and environmental factors play a role in the development and progression of Parkinson's disease (PD). The main neuropathological hallmark of PD is the degeneration of dopaminergic (DAergic) neurons in the substantia nigra pars compacta. To study genetic and molecular contributors to the disease process, there is a great need for readily accessible cells with prominent DAergic features that can be used for reproducible in vitro cellular screening. Here, we investigated the molecular phenotype of retinoic acid (RA) differentiated SH-SY5Y cells using genome wide transcriptional profiling combined with gene ontology, transcription factor and molecular pathway analysis. We demonstrated that RA induces a general neuronal differentiation program in SH-SY5Y cells and that these cells develop a predominantly mature DAergic-like neurotransmitter phenotype. This phenotype is characterized by increased dopamine levels together with a substantial suppression of other neurotransmitter phenotypes, such as those for noradrenaline, acetylcholine, glutamate, serotonin and histamine. In addition, we show that RA differentiated SH-SY5Y cells express the dopamine and noradrenalin neurotransmitter transporters that are responsible for uptake of MPP(+), a well known DAergic cell toxicant. MPP(+) treatment alters mitochondrial activity according to its proposed cytotoxic effect in DAergic neurons. Taken together, RA differentiated SH-SY5Y cells have a DAergic-like phenotype, and provide a good cellular screening tool to find novel genes or compounds that affect cytotoxic processes that are associated with PD.
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Affiliation(s)
- Joanna A Korecka
- Department of Neuroregeneration, Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands.
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