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Terada M, Mitsukawa K, Nakakariya M, Koike T, Kimura H. Effects of an OX2R agonist on migration and removal of tau from mouse brain. Sci Rep 2024; 14:15964. [PMID: 38987562 PMCID: PMC11237063 DOI: 10.1038/s41598-024-64817-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 06/13/2024] [Indexed: 07/12/2024] Open
Abstract
Pathological proteins including tau are produced in neurons and released into interstitial fluid (ISF) in a neural activity-dependent manner during wakefulness. Pathological proteins in ISF can be removed from the brain via the glymphatic pathway during nighttime. Thus, in individuals with Alzheimer's disease (AD) that have dysregulated sleep/wake rhythm, application of orexin receptor 2 (OX2R) agonists during daytime could recover the efflux of pathological proteins to ISF and indirectly promote the glymphatic pathway by improving the quality of nighttime sleep after proper daytime arousal, resulting in increased removal of these proteins from the brain. We investigated this hypothesis using OX-201, a novel OX2R-selective agonist with a 50% effective concentration of 8.0 nM. Diurnal rhythm of tau release into hippocampal ISF correlated well with neuronal activity and wakefulness in wild-type mice. In both wild-type and human P301S tau transgenic mice, OX-201 induced wakefulness and promoted tau release into hippocampal ISF. Human P301S tau transgenic mice, tested under our conditions, showed longer wakefulness time, which differs from individuals with AD. OX-201 treatment over 2 months did not alter hippocampal tau levels. Although further studies are required, at a minimum OX2R agonists may not exacerbate tau accumulation in individuals with tauopathy, including AD.
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Affiliation(s)
- Michiko Terada
- Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa, 251-8555, Japan
| | - Kayo Mitsukawa
- Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa, 251-8555, Japan
| | - Masanori Nakakariya
- Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa, 251-8555, Japan
| | - Tatsuki Koike
- Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa, 251-8555, Japan
| | - Haruhide Kimura
- Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-Chome, Fujisawa, Kanagawa, 251-8555, Japan.
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2
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Kim GH, Kim J, Choi WS, Kim YK, Lee KH, Jang JW, Kim JG, Ryu HJ, Yang SJ, Jang H, Jung NY, Kim KW, Jeong Y, Moon SY. Executive Summary of 2023 International Conference of the Korean Dementia Association (IC-KDA 2023): A Report From the Academic Committee of the Korean Dementia Association. Dement Neurocogn Disord 2024; 23:75-88. [PMID: 38720824 PMCID: PMC11073927 DOI: 10.12779/dnd.2024.23.2.75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 05/12/2024] Open
Abstract
The Korean Dementia Association (KDA) has been organizing biennial international academic conferences since 2019, with the International Conference of the KDA (IC-KDA) 2023 held in Busan under the theme 'Beyond Boundaries: Advancing Global Dementia Solutions.' The conference comprised 6 scientific sessions, 3 plenary lectures, and 4 luncheon symposiums, drawing 804 participants from 35 countries. Notably, a Korea-Taiwan Joint Symposium addressed insights into Alzheimer's disease (AD). Plenary lectures by renowned scholars explored topics such as microbiome-related AD pathogenesis, social cognition in neurodegenerative diseases, and genetic frontotemporal dementia (FTD). On the first day, specific presentations covered subjects like the gut-brain axis and neuroinflammation in dementia, blood-based biomarkers in AD, and updates in AD therapeutics. The second day's presentations addressed recent issues in clinical neuropsychology, FTD cohort studies, and the pathogenesis of non-AD dementia. The Academic Committee of the KDA compiles lecture summaries to provide comprehensive understanding of the advanced dementia knowledge presented at IC-KDA 2023.
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Affiliation(s)
- Geon Ha Kim
- Department of Neurology, Ewha Womans University Mokdong Hospital, Ewha Womans University, College of Medicine, Seoul, Korea
| | - Jaeho Kim
- Department of Neurology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Won-Seok Choi
- School of Biological Sciences and Technology, College of Natural Sciences, Chonnam National University, Gwangju, Korea
| | - Yun Kyung Kim
- Brain Science Institute, Korea Institute of Science and Technology, Seoul, Korea
| | - Kun Ho Lee
- Department of Biomedical Science, Chosun University, Gwangju, Korea
| | - Jae-Won Jang
- Department of Neurology, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Jae Gwan Kim
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, Korea
| | - Hui Jin Ryu
- Department of Neurology, Konkuk University Medical Center, Seoul, Korea
| | - Soh-Jeong Yang
- Department of Neurology, Severance Hospital of Yonsei University Health System, Seoul, Korea
| | - Hyemin Jang
- Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Na-Yeon Jung
- Department of Neurology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea
| | - Ko Woon Kim
- Department of Neurology, Jeonbuk National University Medical School and Hospital, Jeonju, Korea
| | - Yong Jeong
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - So Young Moon
- Department of Neurology, Ajou University School of Medicine, Suwon, Korea
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3
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Iwaniak P, Owe-Larsson M, Urbańska EM. Microbiota, Tryptophan and Aryl Hydrocarbon Receptors as the Target Triad in Parkinson's Disease-A Narrative Review. Int J Mol Sci 2024; 25:2915. [PMID: 38474162 DOI: 10.3390/ijms25052915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
In the era of a steadily increasing lifespan, neurodegenerative diseases among the elderly present a significant therapeutic and socio-economic challenge. A properly balanced diet and microbiome diversity have been receiving increasing attention as targets for therapeutic interventions in neurodegeneration. Microbiota may affect cognitive function, neuronal survival and death, and gut dysbiosis was identified in Parkinson's disease (PD). Tryptophan (Trp), an essential amino acid, is degraded by microbiota and hosts numerous compounds with immune- and neuromodulating properties. This broad narrative review presents data supporting the concept that microbiota, the Trp-kynurenine (KYN) pathway and aryl hydrocarbon receptors (AhRs) form a triad involved in PD. A disturbed gut-brain axis allows the bidirectional spread of pro-inflammatory molecules and α-synuclein, which may contribute to the development/progression of the disease. We suggest that the peripheral levels of kynurenines and AhR ligands are strongly linked to the Trp metabolism in the gut and should be studied together with the composition of the microbiota. Such an approach can clearly delineate the sub-populations of PD patients manifesting with a disturbed microbiota-Trp-KYN-brain triad, who would benefit from modifications in the Trp metabolism. Analyses of the microbiome, Trp-KYN pathway metabolites and AhR signaling may shed light on the mechanisms of intestinal distress and identify new targets for the diagnosis and treatment in early-stage PD. Therapeutic interventions based on the combination of a well-defined food regimen, Trp and probiotics seem of potential benefit and require further experimental and clinical research.
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Affiliation(s)
- Paulina Iwaniak
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, 20-059 Lublin, Poland
| | - Maja Owe-Larsson
- Department of Histology and Embryology, Center of Biostructure Research, Medical University of Warsaw, Chałubińskiego 5, 02-004 Warsaw, Poland
- Laboratory of Center for Preclinical Research, Department of Experimental and Clinical Physiology, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland
| | - Ewa M Urbańska
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, 20-059 Lublin, Poland
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4
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Ramakrishnan P, Joshi A, Fazil M, Yadav P. A comprehensive review on therapeutic potentials of photobiomodulation for neurodegenerative disorders. Life Sci 2024; 336:122334. [PMID: 38061535 DOI: 10.1016/j.lfs.2023.122334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023]
Abstract
A series of experimental trials over the past two centuries has put forth Photobiomodulation (PBM) as a treatment modality that utilizes colored lights for various conditions. While in its cradle, PBM was used for treating simple conditions such as burns and wounds, advancements in recent years have extended the use of PBM for treating complex neurodegenerative diseases (NDDs). PBM has exhibited the potential to curb several symptoms and signs associated with NDDs. While several of the currently used therapeutics cause adverse side effects alongside being highly invasive, PBM on the contrary, seems to be broad-acting, less toxic, and non-invasive. Despite being projected as an ideal therapeutic for NDDs, PBM still isn't considered a mainstream treatment modality due to some of the challenges and knowledge gaps associated with it. Here, we review the advantages of PBM summarized above with an emphasis on the common mechanisms that underlie major NDDs and how PBM helps tackle them. We also discuss important questions such as whether PBM should be considered a mainstay treatment modality for these conditions and if PBM's properties can be harnessed to develop prophylactic therapies for high-risk individuals and also highlight important animal studies that underscore the importance of PBM and the challenges associated with it. Overall, this review is intended to bring the major advances made in the field to the spotlight alongside addressing the practicalities and caveats to develop PBM as a major therapeutic for NDDs.
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Affiliation(s)
- Pooja Ramakrishnan
- Fly Laboratory # 210, Anusandhan Kendra-II, School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India.
| | - Aradhana Joshi
- Fly Laboratory # 210, Anusandhan Kendra-II, School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India.
| | - Mohamed Fazil
- Fly Laboratory # 210, Anusandhan Kendra-II, School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India; School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India
| | - Pankaj Yadav
- Fly Laboratory # 210, Anusandhan Kendra-II, School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India.
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5
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Efraimidis E, Krokidis MG, Exarchos TP, Lazar T, Vlamos P. In Silico Structural Analysis Exploring Conformational Folding of Protein Variants in Alzheimer's Disease. Int J Mol Sci 2023; 24:13543. [PMID: 37686347 PMCID: PMC10487466 DOI: 10.3390/ijms241713543] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/26/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
Accurate protein structure prediction using computational methods remains a challenge in molecular biology. Recent advances in AI-powered algorithms provide a transformative effect in solving this problem. Even though AlphaFold's performance has improved since its release, there are still limitations that apply to its efficacy. In this study, a selection of proteins related to the pathology of Alzheimer's disease was modeled, with Presenilin-1 (PSN1) and its mutated variants in the foreground. Their structural predictions were evaluated using the ColabFold implementation of AlphaFold, which utilizes MMseqs2 for the creation of multiple sequence alignments (MSAs). A higher number of recycles than the one used in the AlphaFold DB was selected, and no templates were used. In addition, prediction by RoseTTAFold was also applied to address how structures from the two deep learning frameworks match reality. The resulting conformations were compared with the corresponding experimental structures, providing potential insights into the predictive ability of this approach in this particular group of proteins. Furthermore, a comprehensive examination was performed on features such as predicted regions of disorder and the potential effect of mutations on PSN1. Our findings consist of highly accurate superpositions with little or no deviation from experimentally determined domain-level models.
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Affiliation(s)
- Evangelos Efraimidis
- Bioinformatics and Neuroinformatics MSc Program, Hellenic Open University, 26335 Patras, Greece;
| | - Marios G. Krokidis
- Bioinformatics and Human Electrophysiology Laboratory, Department of Informatics, Ionian University, 49100 Corfu, Greece; (M.G.K.); (T.P.E.)
| | - Themis P. Exarchos
- Bioinformatics and Human Electrophysiology Laboratory, Department of Informatics, Ionian University, 49100 Corfu, Greece; (M.G.K.); (T.P.E.)
| | - Tamas Lazar
- VIB–VUB Center for Structural Biology, Vlaams Instituut voor Biotechnologie (VIB), B1050 Brussels, Belgium;
- Structural Biology Brussels, Department of Bioengineering, Vrije Universiteit Brussel, B1050 Brussels, Belgium
| | - Panagiotis Vlamos
- Bioinformatics and Human Electrophysiology Laboratory, Department of Informatics, Ionian University, 49100 Corfu, Greece; (M.G.K.); (T.P.E.)
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6
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Voumvourakis KI, Sideri E, Papadimitropoulos GN, Tsantzali I, Hewlett P, Kitsos D, Stefanou M, Bonakis A, Giannopoulos S, Tsivgoulis G, Paraskevas GP. The Dynamic Relationship between the Glymphatic System, Aging, Memory, and Sleep. Biomedicines 2023; 11:2092. [PMID: 37626589 PMCID: PMC10452251 DOI: 10.3390/biomedicines11082092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 07/16/2023] [Accepted: 07/19/2023] [Indexed: 08/27/2023] Open
Abstract
The process of memory entails the activation of numerous neural networks and biochemical pathways throughout the brain. The phenomenon of memory decline in relation to aging has been the subject of extensive research for several decades. The correlation between the process of aging and memory is intricate and has various aspects to consider. Throughout the aging process, there are various alterations that take place within the brain and, as expected, affect other functions that have already been linked to memory and its function such as involving microcirculation and sleep. Recent studies provide an understanding of how these mechanisms may be interconnected through the relatively new concept of the glymphatic system. The glymphatic system is strongly correlated to sleep processes. Sleep helps the glymphatic system remove brain waste solutes. Astrocytes expand and contract to form channels for cerebrospinal fluid (CSF) to wash through the brain and eliminate waste. However, the details have not been totally elusive, but the discovery of what we call the glymphatic system enables us to connect many pieces of physiology to understand how such factors are interconnected and the interplay between them. Thus, the purpose of this review is to discuss how the glymphatic system, sleep, memory, and aging are interconnected through a network of complex mechanisms and dynamic interactions.
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Affiliation(s)
- Konstantinos I. Voumvourakis
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
| | - Eleni Sideri
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
- Applied Psychology Department, Llandaff Campus, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK
| | - Georgios N. Papadimitropoulos
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
| | - Ioanna Tsantzali
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
| | - Paul Hewlett
- Applied Psychology Department, Llandaff Campus, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK
| | - Dimitrios Kitsos
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
| | - Marianna Stefanou
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
| | - Anastasios Bonakis
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
| | - Sotirios Giannopoulos
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
| | - Georgios Tsivgoulis
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
| | - George P. Paraskevas
- 2nd Department of Neurology, School of Medicine, “Attikon” General University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (K.I.V.); (E.S.); (A.B.)
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7
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Price DL, Khan A, Angers R, Cardenas A, Prato MK, Bani M, Bonhaus DW, Citron M, Biere AL. In vivo effects of the alpha-synuclein misfolding inhibitor minzasolmin supports clinical development in Parkinson's disease. NPJ Parkinsons Dis 2023; 9:114. [PMID: 37460603 PMCID: PMC10352257 DOI: 10.1038/s41531-023-00552-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 06/26/2023] [Indexed: 07/20/2023] Open
Abstract
Direct targeting of alpha-synuclein (ASYN) has emerged as a disease-modifying strategy for Parkinson's disease and other synucleinopathies which is being approached using both small molecule compounds and ASYN-targeted biologics. Minzasolmin (UCB0599) is an orally bioavailable and brain-penetrant small molecule ASYN misfolding inhibitor in clinical development as a disease-modifying therapeutic for Parkinson's disease. Herein the results of preclinical evaluations of minzasolmin that formed the basis for subsequent clinical development are described. Pharmacokinetic evaluations of intraperitoneal 1 and 5 mg/kg minzasolmin in wildtype mice revealed parallel and dose-proportional exposures in brain and plasma. Three-month administration studies in the Line 61 transgenic mouse model of PD were conducted to measure ASYN pathology and other PD-relevant endpoints including markers of CNS inflammation, striatal DAT labeling and gait. Reductions in ASYN pathology were correlated with improved aspects of gait and balance, reductions in CNS inflammation marker abundance, and normalized striatal DAT levels. These findings provide support for human dose determinations and have informed the translational strategy for clinical trial design and biomarker selection for the ongoing clinical studies of minzasolmin in patients living with early-stage Parkinson's disease (ClinicalTrials.gov ID: NCT04658186; EudraCT Number 2020-003265).
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Affiliation(s)
| | - Asma Khan
- Neuropore Therapies, Inc., San Diego, CA, USA
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8
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Lee HJ, Yoon YS, Lee SJ. Molecular mechanisms of cellular senescence in neurodegenerative diseases. J Mol Biol 2023:168114. [PMID: 37085010 DOI: 10.1016/j.jmb.2023.168114] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/23/2023]
Abstract
Neurodegenerative diseases, such as Alzheimer's and Parkinson's, are characterized by several pathological features, including selective neuronal loss, aggregation of specific proteins, and chronic inflammation. Aging is the most critical risk factor of these disorders. However, the mechanism by which aging contributes to the pathogenesis of neurodegenerative diseases is not clearly understood. Cellular senescence is a cell state or fate in response to stimuli. It is typically associated with a series of changes in cellular phenotypes such as abnormal cellular metabolism and proteostasis, reactive oxygen species (ROS) production, and increased secretion of certain molecules via senescence-associated secretory phenotype (SASP). In this review, we discuss how cellular senescence contributes to brain aging and neurodegenerative diseases, and the relationship between protein aggregation and cellular senescence. Finally, we discuss the potential of senescence modifiers and senolytics in the treatment of neurodegenerative diseases.
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Affiliation(s)
- He-Jin Lee
- Department of Anatomy, Konkuk University, Seoul 05029, Korea; IBST, Konkuk University, Seoul 05029, Korea.
| | - Ye-Seul Yoon
- Department of Anatomy, Konkuk University, Seoul 05029, Korea; IBST, Konkuk University, Seoul 05029, Korea
| | - Seung-Jae Lee
- Department of Biomedical Sciences, Neuroscience Research Institute, Convergence Research Center for Dementia, Seoul National University College of Medicine, Seoul, Korea; Neuramedy, Co., Ltd., Seoul, Korea.
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9
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Losero E, Jagannath S, Pezzoli M, Goblot V, Babashah H, Lashuel HA, Galland C, Quack N. Neuronal growth on high-aspect-ratio diamond nanopillar arrays for biosensing applications. Sci Rep 2023; 13:5909. [PMID: 37041255 PMCID: PMC10090193 DOI: 10.1038/s41598-023-32235-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/24/2023] [Indexed: 04/13/2023] Open
Abstract
Monitoring neuronal activity with simultaneously high spatial and temporal resolution in living cell cultures is crucial to advance understanding of the development and functioning of our brain, and to gain further insights in the origin of brain disorders. While it has been demonstrated that the quantum sensing capabilities of nitrogen-vacancy (NV) centers in diamond allow real time detection of action potentials from large neurons in marine invertebrates, quantum monitoring of mammalian neurons (presenting much smaller dimensions and thus producing much lower signal and requiring higher spatial resolution) has hitherto remained elusive. In this context, diamond nanostructuring can offer the opportunity to boost the diamond platform sensitivity to the required level. However, a comprehensive analysis of the impact of a nanostructured diamond surface on the neuronal viability and growth was lacking. Here, we pattern a single crystal diamond surface with large-scale nanopillar arrays and we successfully demonstrate growth of a network of living and functional primary mouse hippocampal neurons on it. Our study on geometrical parameters reveals preferential growth along the nanopillar grid axes with excellent physical contact between cell membrane and nanopillar apex. Our results suggest that neuron growth can be tailored on diamond nanopillars to realize a nanophotonic quantum sensing platform for wide-field and label-free neuronal activity recording with sub-cellular resolution.
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Affiliation(s)
- Elena Losero
- School of Basic Sciences, Institute of Physics, EPFL, Rte Cantonale, 1015, Lausanne, Switzerland.
- Division of Quantum Metrology and Nanotechnologies, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce 91, 10135, Torino, Italy.
- School of Engineering, Institute of Electrical and Micro Engineering, EPFL, Rte Cantonale, 1015, Lausanne, Switzerland.
| | - Somanath Jagannath
- School of Life Sciences, EPFL, Rte Cantonale, 1015, Lausanne, Switzerland
| | - Maurizio Pezzoli
- School of Life Sciences, EPFL, Rte Cantonale, 1015, Lausanne, Switzerland
| | - Valentin Goblot
- School of Basic Sciences, Institute of Physics, EPFL, Rte Cantonale, 1015, Lausanne, Switzerland
| | - Hossein Babashah
- School of Basic Sciences, Institute of Physics, EPFL, Rte Cantonale, 1015, Lausanne, Switzerland
| | - Hilal A Lashuel
- School of Life Sciences, EPFL, Rte Cantonale, 1015, Lausanne, Switzerland
| | - Christophe Galland
- School of Basic Sciences, Institute of Physics, EPFL, Rte Cantonale, 1015, Lausanne, Switzerland
| | - Niels Quack
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW, Australia
- School of Engineering, Institute of Electrical and Micro Engineering, EPFL, Rte Cantonale, 1015, Lausanne, Switzerland
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10
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Current Treatments and New, Tentative Therapies for Parkinson’s Disease. Pharmaceutics 2023; 15:pharmaceutics15030770. [PMID: 36986631 PMCID: PMC10051786 DOI: 10.3390/pharmaceutics15030770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/02/2023] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative pathology, the origin of which is associated with the death of neuronal cells involved in the production of dopamine. The prevalence of PD has increased exponentially. The aim of this review was to describe the novel treatments for PD that are currently under investigation and study and the possible therapeutic targets. The pathophysiology of this disease is based on the formation of alpha-synuclein folds that generate Lewy bodies, which are cytotoxic and reduce dopamine levels. Most pharmacological treatments for PD target alpha-synuclein to reduce the symptoms. These include treatments aimed at reducing the accumulation of alpha-synuclein (epigallocatechin), reducing its clearance via immunotherapy, inhibiting LRRK2, and upregulating cerebrosidase (ambroxol). Parkinson’s disease continues to be a pathology of unknown origin that generates a significant social cost for the patients who suffer from it. Although there is still no definitive cure for this disease at present, there are numerous treatments available aimed at reducing the symptomatology of PD in addition to other therapeutic alternatives that are still under investigation. However, the therapeutic approach to this pathology should include a combination of pharmacological and non-pharmacological strategies to maximise outcomes and improve symptomatological control in these patients. It is therefore necessary to delve deeper into the pathophysiology of the disease in order to improve these treatments and therefore the quality of life of the patients.
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11
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Turos-Korgul L, Kolba MD, Chroscicki P, Zieminska A, Piwocka K. Tunneling Nanotubes Facilitate Intercellular Protein Transfer and Cell Networks Function. Front Cell Dev Biol 2022; 10:915117. [PMID: 35903550 PMCID: PMC9314668 DOI: 10.3389/fcell.2022.915117] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/20/2022] [Indexed: 11/24/2022] Open
Abstract
The past decade witnessed a huge interest in the communication machinery called tunneling nanotubes (TNTs) which is a novel, contact-dependent type of intercellular protein transfer (IPT). As the IPT phenomenon plays a particular role in the cross-talk between cells, including cancer cells as well as in the immune and nervous systems, it therefore participates in remodeling of the cellular networks. The following review focuses on the placing the role of tunneling nanotube-mediated protein transfer between distant cells. Firstly, we describe different screening methods used to study IPT including tunneling nanotubes. Further, we present various examples of TNT-mediated protein transfer in the immune system, cancer microenvironment and in the nervous system, with particular attention to the methods used to verify the transfer of individual proteins.
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12
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Proteomics for comprehensive characterization of extracellular vesicles in neurodegenerative disease. Exp Neurol 2022; 355:114149. [PMID: 35732219 DOI: 10.1016/j.expneurol.2022.114149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 01/28/2022] [Accepted: 06/15/2022] [Indexed: 11/22/2022]
Abstract
Extracellular vesicles (EVs) are small lipid bilayer particles ubiquitously released by almost every cell type. A specific and selective constituents of EVs loaded with variety of proteins, lipids, small noncoding RNAs, and long non-coding RNAs are reflective of cellular events, type, and physiologic/pathophysiologic status of the cell of origin. Moreover, these molecular contents carry information from the cell of origin to recipient cells, modulating intercellular communication. Recent studies demonstrated that EVs not only play a neuroprotective role by mediating the removal of toxic proteins, but also emerge as an important player in various neurodegenerative disease onset and progression through facilitating of misfolded proteins propagation. For this reason, neurodegenerative disease-associated differences in EV proteome relative to normal EVs can be used to fulfil diagnostic, prognostic, and therapeutic purposes. Nonetheless, characterizing EV proteome obtained from biological samples (brain tissue and body fluids, including urea, blood, saliva, and CSF) is a challenging task. Herein, we review the status of EV proteome profiling and the updated discovery of potential biomarkers for the diagnosis of neurodegenerative disease with an emphasis on the integration of high-throughput advanced mass spectrometry (MS) technologies for both qualitative and quantitative analysis of EVs in different clinical tissue/body fluid samples in past five years.
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Machine learning predicts translation initiation sites in neurologic diseases with nucleotide repeat expansions. PLoS One 2022; 17:e0256411. [PMID: 35648796 PMCID: PMC9159584 DOI: 10.1371/journal.pone.0256411] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 05/16/2022] [Indexed: 11/19/2022] Open
Abstract
A number of neurologic diseases associated with expanded nucleotide repeats, including an inherited form of amyotrophic lateral sclerosis, have an unconventional form of translation called repeat-associated non-AUG (RAN) translation. It has been speculated that the repeat regions in the RNA fold into secondary structures in a length-dependent manner, promoting RAN translation. Repeat protein products are translated, accumulate, and may contribute to disease pathogenesis. Nucleotides that flank the repeat region, especially ones closest to the initiation site, are believed to enhance translation initiation. A machine learning model has been published to help identify ATG and near-cognate translation initiation sites; however, this model has diminished predictive power due to its extensive feature selection and limited training data. Here, we overcome this limitation and increase prediction accuracy by the following: a) capture the effect of nucleotides most critical for translation initiation via feature reduction, b) implement an alternative machine learning algorithm better suited for limited data, c) build comprehensive and balanced training data (via sampling without replacement) that includes previously unavailable sequences, and d) split ATG and near-cognate translation initiation codon data to train two separate models. We also design a supplementary scoring system to provide an additional prognostic assessment of model predictions. The resultant models have high performance, with ~85-88% accuracy, exceeding that of the previously published model by >18%. The models presented here are used to identify translation initiation sites in genes associated with a number of neurologic repeat expansion disorders. The results confirm a number of sites of translation initiation upstream of the expanded repeats that have been found experimentally, and predict sites that are not yet established.
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Moretto E, Stuart S, Surana S, Vargas JNS, Schiavo G. The Role of Extracellular Matrix Components in the Spreading of Pathological Protein Aggregates. Front Cell Neurosci 2022; 16:844211. [PMID: 35573838 PMCID: PMC9100790 DOI: 10.3389/fncel.2022.844211] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 03/08/2022] [Indexed: 11/23/2022] Open
Abstract
Several neurodegenerative diseases are characterized by the accumulation of aggregated misfolded proteins. These pathological agents have been suggested to propagate in the brain via mechanisms similar to that observed for the prion protein, where a misfolded variant is transferred from an affected brain region to a healthy one, thereby inducing the misfolding and/or aggregation of correctly folded copies. This process has been characterized for several proteins, such as α-synuclein, tau, amyloid beta (Aβ) and less extensively for huntingtin and TDP-43. α-synuclein, tau, TDP-43 and huntingtin are intracellular proteins, and their aggregates are located in the cytosol or nucleus of neurons. They have been shown to spread between cells and this event occurs, at least partially, via secretion of these protein aggregates in the extracellular space followed by re-uptake. Conversely, Aβ aggregates are found mainly extracellularly, and their spreading occurs in the extracellular space between brain regions. Due to the inherent nature of their spreading modalities, these proteins are exposed to components of the extracellular matrix (ECM), including glycans, proteases and core matrix proteins. These ECM components can interact with or process pathological misfolded proteins, potentially changing their properties and thus regulating their spreading capabilities. Here, we present an overview of the documented roles of ECM components in the spreading of pathological protein aggregates in neurodegenerative diseases with the objective of identifying the current gaps in knowledge and stimulating further research in the field. This could potentially lead to the identification of druggable targets to slow down the spreading and/or progression of these pathologies.
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Affiliation(s)
- Edoardo Moretto
- Institute of Neuroscience, National Research Council, CNR, Milan, Italy
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
- *Correspondence: Edoardo Moretto,
| | - Skye Stuart
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Sunaina Surana
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
- UCL Queen Square Motor Neuron Disease Centre, University College London, London, United Kingdom
| | - Jose Norberto S. Vargas
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
- UCL Queen Square Motor Neuron Disease Centre, University College London, London, United Kingdom
| | - Giampietro Schiavo
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
- UCL Queen Square Motor Neuron Disease Centre, University College London, London, United Kingdom
- Giampietro Schiavo,
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15
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Mitra S, Munni YA, Dash R, Sultana A, Moon IS. Unveiling the effect of Withania somnifera on neuronal cytoarchitecture and synaptogenesis: A combined in vitro and network pharmacology approach. Phytother Res 2022; 36:2524-2541. [PMID: 35443091 DOI: 10.1002/ptr.7466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 02/17/2022] [Accepted: 03/29/2022] [Indexed: 11/10/2022]
Abstract
Withania somnifera (WS), is known for its remarkable contribution in herbal medicine and Ayurveda, which is therapeutically applied to improve memory and anxiety in patients. However, the pharmacological details of this plant on memory boosting yet remained undefined. This study provides mechanistic insights on the effect of ethanol solution extract of the whole plant of WS (WSEE) on neuritogenesis by combining in vitro and in silico network pharmacology approaches. WSEE promoted significant neuronal growth through early differentiation, axodendritic arborization, and synaptogenesis on primary hippocampal neurons. The network pharmacological study confirmed that the neuritogenic activity is potentially mediated by modulating the neurotrophin signaling pathway, where NRTK1 (TrkA) was revealed as the primary target of WS secondary metabolites. This neurotrophic activity of WSEE was significantly stifled by the presence of TrkA inhibitor, which further confirms the TrkA-dependent activity of WSEE. In addition, a molecular docking study suggested steroidal lactones present in the WS might act as nerve growth factor (NGF)-mimetics, activating TrkA by binding to the NGF-binding domain. As a whole, the findings of the study suggest a significant role of WSEE on neuritogenesis and its potential to function as a therapeutic agent and in drug designing for the prevention and treatment of memory-related neurological disorders.
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Affiliation(s)
- Sarmistha Mitra
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, Republic of Korea
| | - Yeasmin Akter Munni
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, Republic of Korea
| | - Raju Dash
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, Republic of Korea
| | - Armin Sultana
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong, Bangladesh
| | - Il Soo Moon
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, Republic of Korea
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16
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Syndecan-3 as a Novel Biomarker in Alzheimer's Disease. Int J Mol Sci 2022; 23:ijms23063407. [PMID: 35328830 PMCID: PMC8955174 DOI: 10.3390/ijms23063407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/18/2022] [Accepted: 03/19/2022] [Indexed: 11/17/2022] Open
Abstract
Early diagnosis of Alzheimer’s disease (AD) is of paramount importance in preserving the patient’s mental and physical health in a fairly manageable condition for a longer period. Reliable AD detection requires novel biomarkers indicating central nervous system (CNS) degeneration in the periphery. Members of the syndecan family of transmembrane proteoglycans are emerging new targets in inflammatory and neurodegenerative disorders. Reviewing the growing scientific evidence on the involvement of syndecans in the pathomechanism of AD, we analyzed the expression of the neuronal syndecan, syndecan-3 (SDC3), in experimental models of neurodegeneration. Initial in vitro studies showed that prolonged treatment of tumor necrosis factor-alpha (TNF-α) increases SDC3 expression in model neuronal and brain microvascular endothelial cell lines. In vivo studies revealed elevated concentrations of TNF-α in the blood and brain of APPSWE-Tau transgenic mice, along with increased SDC3 concentration in the brain and the liver. Primary brain endothelial cells and peripheral blood monocytes isolated from APPSWE-Tau mice exhibited increased SDC3 expression than wild-type controls. SDC3 expression of blood-derived monocytes showed a positive correlation with amyloid plaque load in the brain, demonstrating that SDC3 on monocytes is a good indicator of amyloid pathology in the brain. Given the well-established role of blood tests, the SDC3 expression of monocytes could serve as a novel biomarker for early AD detection.
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17
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Bahatyrevich-Kharitonik B, Medina-Guzman R, Flores-Cortes A, García-Cruzado M, Kavanagh E, Burguillos MA. Cell Death Related Proteins Beyond Apoptosis in the CNS. Front Cell Dev Biol 2022; 9:825747. [PMID: 35096845 PMCID: PMC8794922 DOI: 10.3389/fcell.2021.825747] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/28/2021] [Indexed: 12/14/2022] Open
Abstract
Cell death related (CDR) proteins are a diverse group of proteins whose original function was ascribed to apoptotic cell death signaling. Recently, descriptions of non-apoptotic functions for CDR proteins have increased. In this minireview, we comment on recent studies of CDR proteins outside the field of apoptosis in the CNS, encompassing areas such as the inflammasome and non-apoptotic cell death, cytoskeleton reorganization, synaptic plasticity, mitophagy, neurodegeneration and calcium signaling among others. Furthermore, we discuss the evolution of proteomic techniques used to predict caspase substrates that could potentially explain their non-apoptotic roles. Finally, we address new concepts in the field of non-apoptotic functions of CDR proteins that require further research such the effect of sexual dimorphism on non-apoptotic CDR protein function and the emergence of zymogen-specific caspase functions.
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Affiliation(s)
- Bazhena Bahatyrevich-Kharitonik
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
| | - Rafael Medina-Guzman
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
| | - Alicia Flores-Cortes
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
| | - Marta García-Cruzado
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
| | - Edel Kavanagh
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
| | - Miguel Angel Burguillos
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC, Seville, Spain
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18
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Ojha AK, Rajasekaran R, Pandey AK, Dutta A, Seesala VS, Das SK, Chaudhury K, Dhara S. Nanotheranostics: Nanoparticles Applications, Perspectives, and Challenges. BIOSENSING, THERANOSTICS, AND MEDICAL DEVICES 2022:345-376. [DOI: 10.1007/978-981-16-2782-8_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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19
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Wahyuningtyas D, Chen WH, He RY, Huang YA, Tsao CK, He YJ, Yu CY, Lu PC, Chen YC, Wang SH, Ng KC, Po-Wen Chen B, Wei PK, Shie JJ, Kuo CH, Sun YH, Jen-Tse Huang J. Polyglutamine-Specific Gold Nanoparticle Complex Alleviates Mutant Huntingtin-Induced Toxicity. ACS APPLIED MATERIALS & INTERFACES 2021; 13:60894-60906. [PMID: 34914364 DOI: 10.1021/acsami.1c18754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Huntington's disease (HD) belongs to protein misfolding disorders associated with polyglutamine (polyQ)-rich mutant huntingtin (mHtt) protein inclusions. Currently, it is indicated that the aggregation of polyQ-rich mHtt participates in neuronal toxicity and dysfunction. Here, we designed and synthesized a polyglutamine-specific gold nanoparticle (AuNP) complex, which specifically targeted mHtt and alleviated its toxicity. The polyglutamine-specific AuNPs were prepared by decorating the surface of AuNPs with an amphiphilic peptide (JLD1) consisting of both polyglutamine-binding sequences and negatively charged sequences. By applying the polyQ aggregation model system, we demonstrated that AuNPs-JLD1 dissociated the fibrillary aggregates from the polyQ peptide and reduced its β-sheet content in a concentration-dependent manner. By further integrating polyethyleneimine (PEI) onto AuNPs-JLD1, we generated a complex (AuNPs-JLD1-PEI). We showed that this complex could penetrate cells, bind to cytosolic mHtt proteins, dissociate mHtt inclusions, reduce mHtt oligomers, and ameliorate mHtt-induced toxicity. AuNPs-JLD1-PEI was also able to be transported to the brain and improved the functional deterioration in the HD Drosophila larva model. Our results revealed the feasibility of combining AuNPs, JLD1s, and cell-penetrating polymers against mHtt protein aggregation and oligomerization, which hinted on the early therapeutic strategies against HD.
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Affiliation(s)
- Devi Wahyuningtyas
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Science Building 2, 1001 Ta Hsueh Road, Hsinchu 300, Taiwan
| | - Wen-Hao Chen
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Ruei-Yu He
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Yung-An Huang
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Chia-Kang Tsao
- Institute of Molecular Biology, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Yu-Jung He
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Chu-Yi Yu
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Po-Chao Lu
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
- Department and Graduate Institute of Pharmacology, National Taiwan University, 11F, No. 1, Section 1, Ren'ai Road, Zhongzheng District, Taipei 10051, Taiwan
| | - Yu-Cai Chen
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Sheng-Hann Wang
- Research Center for Applied Sciences, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 115, Taiwan
| | - Ka Chon Ng
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Bryan Po-Wen Chen
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Pei-Kuen Wei
- Research Center for Applied Sciences, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 115, Taiwan
| | - Jiun-Jie Shie
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Chun-Hong Kuo
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Y Henry Sun
- Institute of Molecular Biology, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
| | - Joseph Jen-Tse Huang
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang District, Taipei 11529, Taiwan
- Department of Applied Chemistry, National Chiayi University, No. 300, University Road, Chiayi 600, Taiwan
- Neuroscience Program of Academia Sinica, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei 11529, Taiwan
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20
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Chassefeyre R, Chaiamarit T, Verhelle A, Novak SW, Andrade LR, Leitão ADG, Manor U, Encalada SE. Endosomal sorting drives the formation of axonal prion protein endoggresomes. SCIENCE ADVANCES 2021; 7:eabg3693. [PMID: 34936461 PMCID: PMC8694590 DOI: 10.1126/sciadv.abg3693] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 11/05/2021] [Indexed: 05/15/2023]
Abstract
The pathogenic aggregation of misfolded prion protein (PrP) in axons underlies prion disease pathologies. The molecular mechanisms driving axonal misfolded PrP aggregate formation leading to neurotoxicity are unknown. We found that the small endolysosomal guanosine triphosphatase (GTPase) Arl8b recruits kinesin-1 and Vps41 (HOPS) onto endosomes carrying misfolded mutant PrP to promote their axonal entry and homotypic fusion toward aggregation inside enlarged endomembranes that we call endoggresomes. This axonal rapid endosomal sorting and transport-dependent aggregation (ARESTA) mechanism forms pathologic PrP endoggresomes that impair calcium dynamics and reduce neuronal viability. Inhibiting ARESTA diminishes endoggresome formation, rescues calcium influx, and prevents neuronal death. Our results identify ARESTA as a key pathway for the regulation of endoggresome formation and a new actionable antiaggregation target to ameliorate neuronal dysfunction in the prionopathies.
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Affiliation(s)
- Romain Chassefeyre
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
- Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA 92037, USA
- Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Tai Chaiamarit
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
- Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA 92037, USA
- Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Adriaan Verhelle
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
- Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA 92037, USA
- Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Sammy Weiser Novak
- Waitt Advanced Biophotonics Center, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Leonardo R. Andrade
- Waitt Advanced Biophotonics Center, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - André D. G. Leitão
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
- Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA 92037, USA
- Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Uri Manor
- Waitt Advanced Biophotonics Center, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Sandra E. Encalada
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
- Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA 92037, USA
- Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, CA 92037, USA
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21
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Mukherjee S, Mishra AK, Peer GDG, Bagabir SA, Haque S, Pandey RP, Raj VS, Jain N, Pandey A, Kar SK. The Interplay of the Unfolded Protein Response in Neurodegenerative Diseases: A Therapeutic Role of Curcumin. Front Aging Neurosci 2021; 13:767493. [PMID: 34867295 PMCID: PMC8640216 DOI: 10.3389/fnagi.2021.767493] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/18/2021] [Indexed: 12/25/2022] Open
Abstract
Abnormal accumulation of misfolded proteins in the endoplasmic reticulum and their aggregation causes inflammation and endoplasmic reticulum stress. This promotes accumulation of toxic proteins in the body tissues especially brain leading to manifestation of neurodegenerative diseases. The studies suggest that deregulation of proteostasis, particularly aberrant unfolded protein response (UPR) signaling, may be a common morbific process in the development of neurodegeneration. Curcumin, the mixture of low molecular weight polyphenolic compounds from turmeric, Curcuma longa has shown promising response to prevents many diseases including current global severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and neurodegenerative disorders. The UPR which correlates positively with neurodegenerative disorders were found affected by curcumin. In this review, we examine the evidence from many model systems illustrating how curcumin interacts with UPR and slows down the development of various neurodegenerative disorders (ND), e.g., Alzheimer's and Parkinson's diseases. The recent global increase in ND patients indicates that researchers and practitioners will need to develop a new pharmacological drug or treatment to manage and cure these neurodegenerative diseases.
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Affiliation(s)
| | | | - G D Ghouse Peer
- Department of Biotechnology, Sri Ramaswamy Memorial (SRM) University, Sonepat, India
| | - Sali Abubaker Bagabir
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan, Saudi Arabia.,Faculty of Medicine, Bursa Uludağ University, Bursa, Turkey
| | - Ramendra Pati Pandey
- Department of Biotechnology, Sri Ramaswamy Memorial (SRM) University, Sonepat, India
| | - V Samuel Raj
- Department of Biotechnology, Sri Ramaswamy Memorial (SRM) University, Sonepat, India
| | - Neeraj Jain
- Division of Cancer Biology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Lucknow, India
| | - Atul Pandey
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, United States.,Department of Ecology, Evolution and Behavior, The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Santosh Kumar Kar
- Nano Herb Research Laboratory, Kalinga Institute of Industrial Technology (KIIT) Technology Business Incubator, KIIT University, Bhubaneswar, India
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22
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Mikami R, Tsukagoshi S, Arai K. Abnormal Enhancement of Protein Disulfide Isomerase-like Activity of a Cyclic Diselenide Conjugated with a Basic Amino Acid by Inserting a Glycine Spacer. BIOLOGY 2021; 10:biology10111090. [PMID: 34827083 PMCID: PMC8615077 DOI: 10.3390/biology10111090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/12/2021] [Accepted: 10/21/2021] [Indexed: 11/16/2022]
Abstract
In a previous study, we reported that (S)-1,2-diselenane-4-amine (1) catalyzes oxidative protein folding through protein disulfide isomerase (PDI)-like catalytic mechanisms and that the direct conjugation of a basic amino acid (Xaa: His, Lys, or Arg) via an amide bond improves the catalytic activity of 1 by increasing its diselenide (Se–Se) reduction potential (E′°). In this study, to modulate the Se–Se redox properties and the association of the compounds with a protein substrate, new catalysts, in which a Gly spacer was inserted between 1 and Xaa, were synthesized. Exhaustive comparison of the PDI-like catalytic activities and E′° values among 1, 1-Xaa, and 1-Gly-Xaa showed that the insertion of a Gly spacer into 1-Xaa either did not change or slightly reduced the PDI-like activity and the E′° values. Importantly, however, only 1-Gly-Arg deviated from this generality and showed obviously increased E°′ value and PDI-like activity compared to the corresponding compound with no Gly spacer (1-Arg); on the contrary, its catalytic activity was the highest among the diselenide compounds employed in this study, while this abnormal enhancement of the catalytic activity of 1-Gly-Arg could not be fully explained by the thermodynamics of the Se–Se bond and its association ability with protein substrates.
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23
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Gasymov OK, Mammedzade AM, Bakhishova MJ, Guliyeva AJ, Ragona L, Molinari H. Sodium fusidate prevents protein aggregation of silk fibroin and offers new perspectives for human lens material disaggregation. Biophys Chem 2021; 279:106680. [PMID: 34537590 DOI: 10.1016/j.bpc.2021.106680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/02/2021] [Accepted: 09/06/2021] [Indexed: 01/30/2023]
Abstract
Silk fibroin (SF) is a non-pathological amyloidogenic protein prone, in solution, to the formation of amyloid-like aggregated species, displaying similarities in fibrillation kinetics with pathological amyloids, as widely reported in the literature. We show here, on the basis of different biophysical approaches (turbidity, Congo Red assays, CD, DLS and fluorescence), that fusidic acid (FA), a well-known antibiotic, acts on SF as an anti-aggregating agent in a dose-dependent manner, being also able to revert SF aggregation. FA binds to SF inducing changes in the environment of SF aromatic residues. We further provide the proof of principle that FA, already approved as drug on humans and used in ophthalmic preparations, displays its anti-aggregation properties also on lens material derived from cataract surgery and is capable of reducing aggregation. Thus it is suggested that FA can be foreseen as a therapeutic treatment for cataract and other protein aggregation disorders.
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Affiliation(s)
- Oktay K Gasymov
- Institute of Biophysics of ANAS, 117 Z. Khalilov, AZ-1141 Baku, Azerbaijan.
| | - Aida M Mammedzade
- Institute of Biophysics of ANAS, 117 Z. Khalilov, AZ-1141 Baku, Azerbaijan
| | | | - Aytaj J Guliyeva
- Institute of Biophysics of ANAS, 117 Z. Khalilov, AZ-1141 Baku, Azerbaijan
| | - Laura Ragona
- Istituto di Scienze e Tecnologie Chimiche (SCITEC), CNR, via Corti 12, 20133 Milano, Italy.
| | - Henriette Molinari
- Istituto di Scienze e Tecnologie Chimiche (SCITEC), CNR, via Corti 12, 20133 Milano, Italy
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24
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Muscolino E, Luoto LM, Brune W. Viral Induced Protein Aggregation: A Mechanism of Immune Evasion. Int J Mol Sci 2021; 22:ijms22179624. [PMID: 34502533 PMCID: PMC8431809 DOI: 10.3390/ijms22179624] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/31/2021] [Accepted: 09/04/2021] [Indexed: 12/20/2022] Open
Abstract
Various intrinsic and extrinsic factors can interfere with the process of protein folding, resulting in protein aggregates. Usually, cells prevent the formation of aggregates or degrade them to prevent the cytotoxic effects they may cause. However, during viral infection, the formation of aggregates may serve as a cellular defense mechanism. On the other hand, some viruses are able to exploit the process of aggregate formation and removal to promote their replication or evade the immune response. This review article summarizes the process of cellular protein aggregation and gives examples of how different viruses exploit it. Particular emphasis is placed on the ribonucleotide reductases of herpesviruses and how their additional non-canonical functions in viral immune evasion are closely linked to protein aggregation.
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Affiliation(s)
- Elena Muscolino
- Leibniz Institute for Experimental Virology (HPI), 20251 Hamburg, Germany; (E.M.); (L.-M.L.)
- Molecular Virology Group, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Laura-Marie Luoto
- Leibniz Institute for Experimental Virology (HPI), 20251 Hamburg, Germany; (E.M.); (L.-M.L.)
| | - Wolfram Brune
- Leibniz Institute for Experimental Virology (HPI), 20251 Hamburg, Germany; (E.M.); (L.-M.L.)
- Correspondence: ; Tel.: +49-40-48051351
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25
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Tang S, Wang W, Zhang X. Direct visualization and profiling of protein misfolding and aggregation in live cells. Curr Opin Chem Biol 2021; 64:116-123. [PMID: 34246835 DOI: 10.1016/j.cbpa.2021.05.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/27/2021] [Accepted: 05/09/2021] [Indexed: 10/20/2022]
Abstract
Over the past few years, research tools have been developed to monitor the multistep protein aggregation process in live cells, a process that has been associated with a growing number of human diseases. Herein, we describe recent advances in methods that can either survey the distribution of aggregation at the level of the cellular proteome using mass spectroscopy or discern the multistep aggregation process of specific proteins of interest via fluorescence signals. Future development and application of such technologies are expected to provide insights on mechanisms, diagnosis, and treatment of diseases rooted in protein aggregation.
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Affiliation(s)
- Sicheng Tang
- Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, United States.
| | - Wenting Wang
- Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, United States
| | - Xin Zhang
- Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, United States; Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, 16802, United States.
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26
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Radbakhsh S, Barreto GE, Bland AR, Sahebkar A. Curcumin: A small molecule with big functionality against amyloid aggregation in neurodegenerative diseases and type 2 diabetes. Biofactors 2021; 47:570-586. [PMID: 33893674 DOI: 10.1002/biof.1735] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/12/2021] [Indexed: 12/14/2022]
Abstract
Amyloidosis is a concept that implicates disorders and complications that are due to abnormal protein accumulation in different cells and tissues. Protein aggregation-associated diseases are classified according to the type of aggregates and deposition sites, such as neurodegenerative disorders and type 2 diabetes mellitus. Polyphenolic phytochemicals such as curcumin and its derivatives have anti-amyloid effects both in vitro and in animal models; however, the underlying mechanisms are not understood. In this review, we summarized possible mechanisms by which curcumin could interfere with self-assembly processes and reduce amyloid aggregation in amyloidosis. Furthermore, we discuss clinical trials in which curcumin is used as a therapeutic agent for the treatment of diseases linking to protein aggregates.
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Affiliation(s)
- Shabnam Radbakhsh
- Department of Medical Biotechnology and Nanotechnology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - George E Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland
- Health Research Institute, University of Limerick, Limerick, Ireland
| | - Abigail R Bland
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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27
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Alpha-Synuclein as a Prominent Actor in the Inflammatory Synaptopathy of Parkinson's Disease. Int J Mol Sci 2021; 22:ijms22126517. [PMID: 34204581 PMCID: PMC8234932 DOI: 10.3390/ijms22126517] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/04/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022] Open
Abstract
Parkinson’s disease (PD) is considered the most common disorder of synucleinopathy, which is characterised by intracellular inclusions of aggregated and misfolded α-synuclein (α-syn) protein in various brain regions, and the loss of dopaminergic neurons. During the early prodromal phase of PD, synaptic alterations happen before cell death, which is linked to the synaptic accumulation of toxic α-syn specifically in the presynaptic terminals, affecting neurotransmitter release. The oligomers and protofibrils of α-syn are the most toxic species, and their overexpression impairs the distribution and activation of synaptic proteins, such as the SNARE complex, preventing neurotransmitter exocytosis and neuronal synaptic communication. In the last few years, the role of the immune system in PD has been increasingly considered. Microglial and astrocyte activation, the gene expression of proinflammatory factors, and the infiltration of immune cells from the periphery to the central nervous system (CNS) represent the main features of the inflammatory response. One of the actors of these processes is α-syn accumulation. In light of this, here, we provide a systematic review of PD-related α-syn and inflammation inter-players.
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28
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Jangampalli Adi P, Reddy PH. Phosphorylated tau targeted small-molecule PROTACs for the treatment of Alzheimer's disease and tauopathies. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166162. [PMID: 33940164 DOI: 10.1016/j.bbadis.2021.166162] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 10/21/2022]
Abstract
Tau is a microtubule-stabilizing protein that plays an important role in the formation of axonal microtubules in neurons. Phosphorylated tau (p-Tau) has received great attention in the field of Alzheimer's disease (AD) as a potential therapeutic target due to its involvement with synaptic damage and neuronal dysfunction. Mounting evidence suggests that amyloid beta (Aβ)-targeted clinical trials continuously failed; therefore, it is important to consider alternative therapeutic strategies such as p-tau-PROTACs targeted small molecules for AD and other tauopathies. The present article describes the characteristics of tau biology, structure, and function in both healthy and pathological states in AD. It also explains data from studies that have identified the involvement of p-tau in neuronal damage and synaptic and cognitive functions in AD. Current article also covers several aspects, including small molecule inhibitors, and the development of p-tau-PROTACs targeted drug molecules to treat patients with AD and other tauopathies.
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Affiliation(s)
| | - P Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Neurology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Public Health, Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Speech, Language, and Hearing Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
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29
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Shafi S, Singh A, Ibrahim AM, Alhajri N, Abu Izneid T, Pottoo FH. Role of triggering receptor expressed on myeloid cells 2 (TREM2) in neurodegenerative dementias. Eur J Neurosci 2021; 53:3294-3310. [PMID: 33786894 DOI: 10.1111/ejn.15215] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 03/22/2021] [Indexed: 01/04/2023]
Abstract
Neurodegeneration is a debilitating condition that causes nerve cell degeneration or death. Neurodegenerative diseases (NDDs) such as Alzheimer's disease (AD), Parkinson's disease (PD), frontotemporal dementia (FTD), and Lewy body dementia (LBD) are posing a larger population burden of dementia worldwide. Neurodegenerative dementia is one of the main challenges in public health with its main characteristics being permanent loss of memory, impairment in cognition, and impaired daily functions. The published literature about genetic studies of these disorders suggests genetic underpinning in the pathogenesis of neurodegenerative dementia. In the process of underlining the pathogenesis of NDD, growing evidence has related genetic variations in the triggering receptor expressed on myeloid cells 2 (TREM2). This review paper aims to provide a detailed information regarding the association of TREM2 and NDDs leading to dementia. A central consideration is AD that accounts for almost 50%-70% of all late-life dementias alone or in combination with other neurological disorders. Other prevalent neurodegenerative conditions that lead to dementia are also discussed. Such studies are important as they can give a comprehensive knowledge of TREM2's role in various NDDs, in order to maximize the potential for developing new therapeutic approaches.
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Affiliation(s)
- Sadat Shafi
- Pharmaceutical Medicine, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Archu Singh
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Abdallah Mohammad Ibrahim
- Fundamentals of Nursing Department, College of Nursing, Imam Abdul Rahman Bin Faisal University, Dammam, Saudi Arabia
| | - Noora Alhajri
- Department of Epidemiology and Population Health, College of Medicine and Health Science, Khalifa University, Abu Dhabi, UAE
| | | | - Faheem Hyder Pottoo
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Damman, Saudi Arabia
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30
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Moorthy H, Govindaraju T. Dendrimer Architectonics to Treat Cancer and Neurodegenerative Diseases with Implications in Theranostics and Personalized Medicine. ACS APPLIED BIO MATERIALS 2021; 4:1115-1139. [PMID: 35014470 DOI: 10.1021/acsabm.0c01319] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Integration of diagnostic and therapeutic functions in a single platform namely theranostics has become a cornerstone for personalized medicine. Theranostics platform facilitates noninvasive detection and treatment while allowing the monitoring of disease progression and therapeutic efficacy in case of chronic conditions of cancer and Alzheimer's disease (AD). Theranostic tools function by themselves or with the aid of carrier, viz. liposomes, micelles, polymers, or dendrimers. The dendrimer architectures (DA) are well-characterized molecular nanoobjects with a large number of terminal functional groups to enhance solubility and offer multivalency and multifunctional properties. Various noninvasive diagnostic tools like magnetic resonance imaging (MRI), computed tomography (CT), gamma scintigraphy, and optical techniques have been accomplished utilizing DAs for simultaneous imaging and drug delivery. Obstacles in the formulation design, drug loading, payload delivery, biocompatibility, overcoming cellular membrane and blood-brain barrier (BBB), and systemic circulation remain a bottleneck in translational efforts. This review focuses on the diagnostic, therapeutic and theranostic potential of DA-based nanocarriers in treating cancer and neurodegenerative disorders like AD and Parkinson's disease (PD), among others. In view of the inverse relationship between cancer and AD, designing suitable DA-based theranostic nanodrug with high selectivity has tremendous implications in personalized medicine to treat cancer and neurodegenerative disorders.
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Affiliation(s)
- Hariharan Moorthy
- Bioorganic Chemistry Laboratory, New Chemistry Unit and The School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P. O., Bengaluru, Karnataka 560064, India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit and The School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P. O., Bengaluru, Karnataka 560064, India
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31
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Adeoye AO, Oso BJ. Investigative studies on the inhibition of amyloid-like fibrils formation by the extracts of Vernonia amygdalina Del. leaf. ADVANCES IN TRADITIONAL MEDICINE 2021. [DOI: 10.1007/s13596-020-00535-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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32
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N Kolodkin A, Sharma RP, Colangelo AM, Ignatenko A, Martorana F, Jennen D, Briedé JJ, Brady N, Barberis M, Mondeel TDGA, Papa M, Kumar V, Peters B, Skupin A, Alberghina L, Balling R, Westerhoff HV. ROS networks: designs, aging, Parkinson's disease and precision therapies. NPJ Syst Biol Appl 2020; 6:34. [PMID: 33106503 PMCID: PMC7589522 DOI: 10.1038/s41540-020-00150-w] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 08/28/2020] [Indexed: 12/11/2022] Open
Abstract
How the network around ROS protects against oxidative stress and Parkinson's disease (PD), and how processes at the minutes timescale cause disease and aging after decades, remains enigmatic. Challenging whether the ROS network is as complex as it seems, we built a fairly comprehensive version thereof which we disentangled into a hierarchy of only five simpler subnetworks each delivering one type of robustness. The comprehensive dynamic model described in vitro data sets from two independent laboratories. Notwithstanding its five-fold robustness, it exhibited a relatively sudden breakdown, after some 80 years of virtually steady performance: it predicted aging. PD-related conditions such as lack of DJ-1 protein or increased α-synuclein accelerated the collapse, while antioxidants or caffeine retarded it. Introducing a new concept (aging-time-control coefficient), we found that as many as 25 out of 57 molecular processes controlled aging. We identified new targets for "life-extending interventions": mitochondrial synthesis, KEAP1 degradation, and p62 metabolism.
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Affiliation(s)
- Alexey N Kolodkin
- Infrastructure for Systems Biology Europe (ISBE.NL), Amsterdam, The Netherlands.
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg.
- Molecular Cell Physiology, VU University Amsterdam, Amsterdam, The Netherlands.
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands.
| | - Raju Prasad Sharma
- Molecular Cell Physiology, VU University Amsterdam, Amsterdam, The Netherlands
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Tarragona, Spain
| | - Anna Maria Colangelo
- Infrastructure for Systems Biology Europe (ISBE.IT), Milan, Italy
- SysBio Centre of Systems Biology (ISBE.IT), University of Milano-Bicocca, Milan, Italy
- Laboratory of Neuroscience "R Levi-Montalcini" Dept of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Andrew Ignatenko
- Luxembourg Institute of Science and Technology (LIST), Esch-sur-Alzette, Luxembourg
| | - Francesca Martorana
- Infrastructure for Systems Biology Europe (ISBE.IT), Milan, Italy
- SysBio Centre of Systems Biology (ISBE.IT), University of Milano-Bicocca, Milan, Italy
- Laboratory of Neuroscience "R Levi-Montalcini" Dept of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Danyel Jennen
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Jacco J Briedé
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Nathan Brady
- Department of Molecular Microbiology & Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Matteo Barberis
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
- Systems Biology, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Surrey, UK
- Centre for Mathematical and Computational Biology, CMCB, University of Surrey, Surrey, UK
| | - Thierry D G A Mondeel
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
- Systems Biology, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Surrey, UK
- Centre for Mathematical and Computational Biology, CMCB, University of Surrey, Surrey, UK
| | - Michele Papa
- SysBio Centre of Systems Biology (ISBE.IT), University of Milano-Bicocca, Milan, Italy
- Infrastructure for Systems Biology Europe (ISBE.IT), Naples, Italy
- Department of Mental and Physical Health, University of Campania-L. Vanvitelli, Napoli, Italia
| | - Vikas Kumar
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Tarragona, Spain
- IISPV, Hospital Universitari Sant Joan de Reus, Universitat Rovira I Virgili, Reus, Spain
| | - Bernhard Peters
- Faculty of Science, Technology and Communication, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Alexander Skupin
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Lilia Alberghina
- Infrastructure for Systems Biology Europe (ISBE.IT), Milan, Italy
- SysBio Centre of Systems Biology (ISBE.IT), University of Milano-Bicocca, Milan, Italy
| | - Rudi Balling
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Hans V Westerhoff
- Infrastructure for Systems Biology Europe (ISBE.NL), Amsterdam, The Netherlands.
- Molecular Cell Physiology, VU University Amsterdam, Amsterdam, The Netherlands.
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands.
- Manchester Centre for Integrative Systems Biology, School for Chemical Engineering and Analytical Science, The University of Manchester, Manchester, UK.
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33
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Labus J, Röhrs KF, Ackmann J, Varbanov H, Müller FE, Jia S, Jahreis K, Vollbrecht AL, Butzlaff M, Schill Y, Guseva D, Böhm K, Kaushik R, Bijata M, Marin P, Chaumont-Dubel S, Zeug A, Dityatev A, Ponimaskin E. Amelioration of Tau pathology and memory deficits by targeting 5-HT7 receptor. Prog Neurobiol 2020; 197:101900. [PMID: 32841723 DOI: 10.1016/j.pneurobio.2020.101900] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 07/21/2020] [Accepted: 08/17/2020] [Indexed: 01/01/2023]
Abstract
Tauopathies comprise a heterogeneous family of neurodegenerative diseases characterized by pathological accumulation of hyperphosphorylated Tau protein. Pathological changes in serotonergic signaling have been associated with tauopathy etiology, but the underlying mechanisms remain poorly understood. Here, we studied the role of the serotonin receptor 7 (5-HT7R), in a mouse model of tauopathy induced by overexpressing the human Tau[R406W] mutant associated with inherited forms of frontotemporal dementia. We showed that the constitutive 5-HT7R activity is required for Tau hyperphosphorylation and formation of highly bundled Tau structures (HBTS) through G-protein-independent, CDK5-dependent mechanism. We also showed that 5-HT7R physically interacts with CDK5. At the systemic level, 5-HT7R-mediated CDK5 activation induces HBTS leading to neuronal death, reduced long-term potentiation (LTP), and impaired memory in mice. Specific blockade of constitutive 5-HT7R activity in neurons that overexpressed Tau[R406W] prevents Tau hyperphosphorylation, aggregation, and neurotoxicity. Moreover, 5-HT7R knockdown in the prefrontal cortex fully abrogates Tau[R406W]-induced LTP deficits and memory impairments. Thus, 5-HT7R/CDK5 signaling emerged as a new, promising target for tauopathy treatments.
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Affiliation(s)
- Josephine Labus
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Kian-Fritz Röhrs
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany; Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jana Ackmann
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Hristo Varbanov
- Instituite of Neurophysiology, Hannover Medical School, Hannover, Germany; German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Franziska E Müller
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Shaobo Jia
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Kathrin Jahreis
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Anna-Lena Vollbrecht
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Malte Butzlaff
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Yvonne Schill
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Daria Guseva
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Katrin Böhm
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Rahul Kaushik
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Monika Bijata
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany; Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology of the Polish Academy of Science, Warsaw, Poland
| | - Philippe Marin
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France
| | | | - Andre Zeug
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Alexander Dityatev
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany; Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany.
| | - Evgeni Ponimaskin
- Department of Cellular Neurophysiology, Hannover Medical School, Hannover, Germany; Institute of Neuroscience, Lobachevsky State University of Nizhni Novgorod, Russia.
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34
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Tsukagoshi S, Mikami R, Arai K. Basic Amino Acid Conjugates of 1,2-Diselenan-4-amine with Protein Disulfide Isomerase-like Functions as a Manipulator of Protein Quality Control. Chem Asian J 2020; 15:2646-2652. [PMID: 32662226 DOI: 10.1002/asia.202000682] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Indexed: 11/09/2022]
Abstract
Protein disulfide isomerase (PDI) can assist immature proteins to correctly fold by controlling cysteinyl disulfide (SS)-relating reactions (i. e., SS-formation, SS-cleavage, and SS-isomerization). PDI controls protein quality by suppressing protein aggregation, as well as functions as an oxidative folding catalyst. Following the amino acid sequence of the active center in PDI, basic amino acid conjugates of 1,2-diselenan-4-amine (1), which show oxidoreductase- and isomerase-like activities for SS-relating reactions, were designed as a novel PDI model compound. By conjugating the amino acids, the diselenide reduction potential of compound 1 was significantly increased, causing improvement of the catalytic activities for all SS-relating reactions. Furthermore, these compounds, especially histidine-conjugated one, remarkably suppressed protein aggregation even at low concertation (0.3 mM∼). Thus, it was demonstrated that the conjugation of basic amino acids into 1 simultaneously achieves the enhancement of the redox reactivity and the capability to suppress protein aggregation.
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Affiliation(s)
- Shunsuke Tsukagoshi
- Department of Chemistry School of Science, Tokai University, Kitalaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
| | - Rumi Mikami
- Department of Chemistry School of Science, Tokai University, Kitalaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
| | - Kenta Arai
- Department of Chemistry School of Science, Tokai University, Kitalaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
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35
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Vinaiphat A, Sze SK. Clinical implications of extracellular vesicles in neurodegenerative diseases. Expert Rev Mol Diagn 2019; 19:813-824. [PMID: 31429341 DOI: 10.1080/14737159.2019.1657407] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Introduction: Extracellular vesicles (EVs) released by neural cells play a crucial role in intracellular communication in both physiological and pathological states. Recent studies have shown that the neuropathogenic manifestation of many progressive nervous system diseases including Parkinson's disease (PD), Alzheimer's diseases (AD), and amyotrophic lateral sclerosis (ALS). These diseases are frequently found to be associated with the accumulation of misfolded proteins, exploit EVs for the spread of aggregates to naive cells in a prion-like mechanism. Therefore, characterization of EVs and understanding their mechanism of action could open a window of opportunity to discover biomarkers and therapeutic targets in a disease-specific manner. Areas covered: In this review, we discuss the role of neural cells-derived EVs in normal and disease states. We also highlight their biomedical potential in modern medicine, including the use of circulating EVs as biomarkers for diagnosis with a special focus on newly-identified potential biomarkers in neurodegenerative disease, and novel methodologies in EVs isolation. Expert opinion: Systematic and comprehensive analysis of EVs in different biofluid sources is needed. Considering the potential for tremendous clinical benefits of EVs research in neurodegenerative disease, there is also an urgent need to standardize neural cells-derived EV enrichment protocols for consensus results.
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Affiliation(s)
- Arada Vinaiphat
- School of Biological Sciences, Nanyang Technological University , Singapore Singapore
| | - Siu Kwan Sze
- School of Biological Sciences, Nanyang Technological University , Singapore Singapore
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36
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Proteasome Activation to Combat Proteotoxicity. Molecules 2019; 24:molecules24152841. [PMID: 31387243 PMCID: PMC6696185 DOI: 10.3390/molecules24152841] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/22/2019] [Accepted: 08/01/2019] [Indexed: 12/11/2022] Open
Abstract
Loss of proteome fidelity leads to the accumulation of non-native protein aggregates and oxidatively damaged species: hallmarks of an aged cell. These misfolded and aggregated species are often found, and suggested to be the culpable party, in numerous neurodegenerative diseases including Huntington's, Parkinson's, Amyotrophic Lateral Sclerosis (ALS), and Alzheimer's Diseases (AD). Many strategies for therapeutic intervention in proteotoxic pathologies have been put forth; one of the most promising is bolstering the efficacy of the proteasome to restore normal proteostasis. This strategy is ideal as monomeric precursors and oxidatively damaged proteins, so called "intrinsically disordered proteins" (IDPs), are targeted by the proteasome. This review will provide an overview of disorders in proteins, both intrinsic and acquired, with a focus on susceptibility to proteasomal degradation. We will then examine the proteasome with emphasis on newly published structural data and summarize current known small molecule proteasome activators.
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37
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Kevadiya BD, Ottemann BM, Thomas MB, Mukadam I, Nigam S, McMillan J, Gorantla S, Bronich TK, Edagwa B, Gendelman HE. Neurotheranostics as personalized medicines. Adv Drug Deliv Rev 2019; 148:252-289. [PMID: 30421721 PMCID: PMC6486471 DOI: 10.1016/j.addr.2018.10.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 12/16/2022]
Abstract
The discipline of neurotheranostics was forged to improve diagnostic and therapeutic clinical outcomes for neurological disorders. Research was facilitated, in largest measure, by the creation of pharmacologically effective multimodal pharmaceutical formulations. Deployment of neurotheranostic agents could revolutionize staging and improve nervous system disease therapeutic outcomes. However, obstacles in formulation design, drug loading and payload delivery still remain. These will certainly be aided by multidisciplinary basic research and clinical teams with pharmacology, nanotechnology, neuroscience and pharmaceutic expertise. When successful the end results will provide "optimal" therapeutic delivery platforms. The current report reviews an extensive body of knowledge of the natural history, epidemiology, pathogenesis and therapeutics of neurologic disease with an eye on how, when and under what circumstances neurotheranostics will soon be used as personalized medicines for a broad range of neurodegenerative, neuroinflammatory and neuroinfectious diseases.
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Affiliation(s)
- Bhavesh D Kevadiya
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Brendan M Ottemann
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Midhun Ben Thomas
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Insiya Mukadam
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Saumya Nigam
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - JoEllyn McMillan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Santhi Gorantla
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Tatiana K Bronich
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA
| | - Benson Edagwa
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA; Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, USA.
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38
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Wahyuningtyas D, Chen WH, Huang CH, He YJ, Huang JJT. Biocompatible Inhibitor Based on Chitosan and Amphiphilic Peptide against Mutant Huntingtin Toxicity. Chembiochem 2019; 20:2133-2140. [PMID: 31166067 DOI: 10.1002/cbic.201900242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Indexed: 12/15/2022]
Abstract
Huntington's disease (HD) is classified as a protein-misfolding disease correlated with the mutant Huntingtin (mHtt) protein with abnormally expanded polyglutamine (polyQ) domains. Because no effective drugs have yet been reported, attempts to develop better therapy to delay the age of onset are in urgent demand. In this study, an amphiphilic peptide consisting of negatively charged hexaglutamic acid and a stretch of decaglutamine (E6 Q10 ) was chemically synthesized as an inhibitor against polyQ and mHtt toxicity. It is found that E6 Q10 selfassembles into spherical vesicles, as shown by means of TEM, cryoelectron microscopy, and dynamic light scattering. Assembled E6 Q10 prevented the polyQ-rich peptide (KKWQ20 AKK) from forming amyloid fibrils. To enable the cell-penetration ability of E6 Q10 , the E6 Q10 ⋅chitosan complex was generated. It is demonstrated that the complex penetrates cells, interferes with the mHtt oligomerization and aggregation process, and prevents mHtt cytotoxicity. By combining positively charged chitosan and amphiphilic peptides with a negatively charge moiety, a new strategy is provided to develop biocompatible and biodegradable inhibitors against mHtt toxicity.
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Affiliation(s)
- Devi Wahyuningtyas
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei, 115, Taiwan.,Sustainable Chemical Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei, 115, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, Science Building 2, 1001 Ta Hsueh Road, Hsinchu, 300, Taiwan
| | - Wen-Hao Chen
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei, 115, Taiwan
| | - Chen-Han Huang
- Department of Biomedical Sciences and Engineering, National Central University, No. 300, Zhongda Road, Zhongli, Taoyuan, 32001, Taiwan
| | - Yu-Jung He
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei, 115, Taiwan
| | - Joseph Jen-Tse Huang
- Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nankang, Taipei, 115, Taiwan
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Spencer B, Trinh I, Rockenstein E, Mante M, Florio J, Adame A, El-Agnaf OMA, Kim C, Masliah E, Rissman RA. Systemic peptide mediated delivery of an siRNA targeting α-syn in the CNS ameliorates the neurodegenerative process in a transgenic model of Lewy body disease. Neurobiol Dis 2019; 127:163-177. [PMID: 30849508 PMCID: PMC6588505 DOI: 10.1016/j.nbd.2019.03.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/05/2019] [Accepted: 03/04/2019] [Indexed: 02/08/2023] Open
Abstract
Neurodegenerative disorders of the aging population are characterized by progressive accumulation of neuronal proteins such as α-synuclein (α-syn) in Parkinson's Disease (PD) and Amyloid ß (Aß) and Tau in Alzheimer's disease (AD) for which no treatments are currently available. The ability to regulate the expression at the gene transcription level would be beneficial for reducing the accumulation of these proteins or regulating expression levels of other genes in the CNS. Short interfering RNA molecules can bind specifically to target RNAs and deliver them for degradation. This approach has shown promise therapeutically in vitro and in vivo in mouse models of PD and AD and other neurological disorders; however, delivery of the siRNA to the CNS in vivo has been achieved primarily through intra-cerebral or intra-thecal injections that may be less amenable for clinical translation; therefore, alternative approaches for delivery of siRNAs to the brain is needed. Recently, we described a small peptide from the envelope protein of the rabies virus (C2-9r) that was utilized to deliver an siRNA targeting α-syn across the blood brain barrier (BBB) following intravenous injection. This approach showed reduced expression of α-syn and neuroprotection in a toxic mouse model of PD. However, since receptor-mediated delivery is potentially saturable, each allowing the delivery of a limited number of molecules, we identified an alternative peptide for the transport of nucleotides across the BBB based on the apolipoprotein B (apoB) protein targeted to the family of low-density lipoprotein receptors (LDL-R). We used an 11-amino acid sequence from the apoB protein (ApoB11) that, when coupled with a 9-amino acid arginine linker, can transport siRNAs across the BBB to neuronal and glial cells. To examine the value of this peptide mediated oligonucleotide delivery system for PD, we delivered an siRNA targeting the α-syn (siα-syn) in a transgenic mouse model of PD. We found that ApoB11 was effective (comparable to C2-9r) at mediating the delivery of siα-syn into the CNS, co-localized to neurons and glial cells and reduced levels of α-syn protein translation and accumulation. Delivery of ApoB11/siα-syn was accompanied by protection from degeneration of selected neuronal populations in the neocortex, limbic system and striato-nigral system and reduced neuro-inflammation. Taken together, these results suggest that systemic delivery of oligonucleotides targeting α-syn using ApoB11 might be an interesting alternative strategy worth considering for the experimental treatment of synucleinopathies.
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Affiliation(s)
- Brian Spencer
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | - Ivy Trinh
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | - Edward Rockenstein
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | - Michael Mante
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | - Jazmin Florio
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | - Anthony Adame
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
| | - Omar M A El-Agnaf
- Neurological Disorders Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Doha, Qatar
| | - Changyoun Kim
- Laboratory of Neurogenetics National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Eliezer Masliah
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA; Laboratory of Neurogenetics National Institute on Aging, National Institutes of Health, Bethesda, MD, USA; Division of Neuroscience, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Robert A Rissman
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA; Veterans Affairs San Diego Healthcare System San Diego, CA, USA.
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40
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Shacham T, Sharma N, Lederkremer GZ. Protein Misfolding and ER Stress in Huntington's Disease. Front Mol Biosci 2019; 6:20. [PMID: 31001537 PMCID: PMC6456712 DOI: 10.3389/fmolb.2019.00020] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/11/2019] [Indexed: 12/28/2022] Open
Abstract
Increasing evidence in recent years indicates that protein misfolding and aggregation, leading to ER stress, are central factors of pathogenicity in neurodegenerative diseases. This is particularly true in Huntington's disease (HD), where in contrast with other disorders, the cause is monogenic. Mutant huntingtin interferes with many cellular processes, but the fact that modulation of ER stress and of the unfolded response pathways reduces the toxicity, places these mechanisms at the core and gives hope for potential therapeutic approaches. There is currently no effective treatment for HD and it has a fatal outcome a few years after the start of symptoms of cognitive and motor impairment. Here we will discuss recent findings that shed light on the mechanisms of protein misfolding and aggregation that give origin to ER stress in neurodegenerative diseases, focusing on Huntington's disease, on the cellular response and on how to use this knowledge for possible therapeutic strategies.
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Affiliation(s)
- Talya Shacham
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.,George Wise Faculty of Life Sciences, School of Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, Israel
| | - Neeraj Sharma
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.,George Wise Faculty of Life Sciences, School of Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, Israel
| | - Gerardo Z Lederkremer
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.,George Wise Faculty of Life Sciences, School of Molecular Cell Biology and Biotechnology, Tel Aviv University, Tel Aviv, Israel
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41
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Zacco E, Graña-Montes R, Martin SR, de Groot NS, Alfano C, Tartaglia GG, Pastore A. RNA as a key factor in driving or preventing self-assembly of the TAR DNA-binding protein 43. J Mol Biol 2019; 431:1671-1688. [PMID: 30742796 PMCID: PMC6461199 DOI: 10.1016/j.jmb.2019.01.028] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 01/22/2019] [Accepted: 01/24/2019] [Indexed: 12/12/2022]
Abstract
Amyotrophic lateral sclerosis and frontotemporal lobar degeneration are incurable motor neuron diseases associated with muscle weakness, paralysis and respiratory failure. Accumulation of TAR DNA-binding protein 43 (TDP-43) as toxic cytoplasmic inclusions is one of the hallmarks of these pathologies. TDP-43 is an RNA-binding protein responsible for regulating RNA transcription, splicing, transport and translation. Aggregated TDP-43 does not retain its physiological function. Here, we exploit the ability of TDP-43 to bind specific RNA sequences to validate our hypothesis that the native partners of a protein can be used to interfere with its ability to self-assemble into aggregates. We propose that binding of TDP-43 to specific RNA can compete with protein aggregation. This study provides a solid proof of concept to the hypothesis that natural interactions can be exploited to increase protein solubility and could be adopted as a more general rational therapeutic strategy. We found that binding of the RRM domains of TDP-43 to specific RNA competes with protein aggregation. This study provides a solid proof of concept to the hypothesis that natural interactions can be exploited to increase protein solubility. The concept could be adopted as a more general rationale for protein-specific drug design.
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Affiliation(s)
- Elsa Zacco
- UK Dementia Research Institute at King's College London, London, SE5 9RT, United Kingdom; The Wohl Institute at King's College London, London, SE5 9RT, United Kingdom
| | - Ricardo Graña-Montes
- Centre for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology, Dr. Aiguader 88, 08003 Barcelona, Spain
| | | | - Natalia Sanchez de Groot
- Centre for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology, Dr. Aiguader 88, 08003 Barcelona, Spain
| | | | - Gian Gaetano Tartaglia
- Centre for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology, Dr. Aiguader 88, 08003 Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona 08003, Spain; Institutio Catalan de Recerca I Estudis Avancats (ICREA), 23 Passeig Lluıs Companys, 08010 Barcelona, Spain; Department of Biology 'Charles Darwin', Sapienza University of Rome, P.le A. Moro 5, Rome 00185, Italy.
| | - Annalisa Pastore
- UK Dementia Research Institute at King's College London, London, SE5 9RT, United Kingdom; The Wohl Institute at King's College London, London, SE5 9RT, United Kingdom; Scuola Normale Superiore, Piazza dei Cavalieri, Pisa, 56126, Italy.
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42
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Hong H, Koon AC, Chen ZS, Wei Y, An Y, Li W, Lau MHY, Lau KF, Ngo JCK, Wong CH, Au-Yeung HY, Zimmerman SC, Chan HYE. AQAMAN, a bisamidine-based inhibitor of toxic protein inclusions in neurons, ameliorates cytotoxicity in polyglutamine disease models. J Biol Chem 2018; 294:2757-2770. [PMID: 30593503 DOI: 10.1074/jbc.ra118.006307] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/26/2018] [Indexed: 01/30/2023] Open
Abstract
Polyglutamine (polyQ) diseases are a group of dominantly inherited neurodegenerative disorders caused by the expansion of an unstable CAG repeat in the coding region of the affected genes. Hallmarks of polyQ diseases include the accumulation of misfolded protein aggregates, leading to neuronal degeneration and cell death. PolyQ diseases are currently incurable, highlighting the urgent need for approaches that inhibit the formation of disaggregate cytotoxic polyQ protein inclusions. Here, we screened for bisamidine-based inhibitors that can inhibit neuronal polyQ protein inclusions. We demonstrated that one inhibitor, AQAMAN, prevents polyQ protein aggregation and promotes de-aggregation of self-assembled polyQ proteins in several models of polyQ diseases. Using immunocytochemistry, we found that AQAMAN significantly reduces polyQ protein aggregation and specifically suppresses polyQ protein-induced cell death. Using a recombinant and purified polyQ protein (thioredoxin-Huntingtin-Q46), we further demonstrated that AQAMAN interferes with polyQ self-assembly, preventing polyQ aggregation, and dissociates preformed polyQ aggregates in a cell-free system. Remarkably, AQAMAN feeding of Drosophila expressing expanded polyQ disease protein suppresses polyQ-induced neurodegeneration in vivo In addition, using inhibitors and activators of the autophagy pathway, we demonstrated that AQAMAN's cytoprotective effect against polyQ toxicity is autophagy-dependent. In summary, we have identified AQAMAN as a potential therapeutic for combating polyQ protein toxicity in polyQ diseases. Our findings further highlight the importance of the autophagy pathway in clearing harmful polyQ proteins.
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Affiliation(s)
- Huiling Hong
- From the Laboratory of Drosophila Research.,School of Life Sciences, Faculty of Science
| | - Alex Chun Koon
- From the Laboratory of Drosophila Research.,School of Life Sciences, Faculty of Science
| | - Zhefan Stephen Chen
- From the Laboratory of Drosophila Research.,School of Life Sciences, Faculty of Science
| | - Yuming Wei
- From the Laboratory of Drosophila Research.,School of Life Sciences, Faculty of Science
| | - Ying An
- From the Laboratory of Drosophila Research.,School of Life Sciences, Faculty of Science
| | - Wen Li
- School of Life Sciences, Faculty of Science
| | - Matthew Ho Yan Lau
- the Department of Chemistry, University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China, and
| | | | | | | | - Ho Yu Au-Yeung
- the Department of Chemistry, University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China, and
| | - Steven C Zimmerman
- the Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
| | - Ho Yin Edwin Chan
- From the Laboratory of Drosophila Research, .,School of Life Sciences, Faculty of Science.,Gerald Choa Neuroscience Centre, Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
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43
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Pradeepkiran JA, Reddy AP, Reddy PH. Pharmacophore-based models for therapeutic drugs against phosphorylated tau in Alzheimer's disease. Drug Discov Today 2018; 24:616-623. [PMID: 30453058 DOI: 10.1016/j.drudis.2018.11.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 09/22/2018] [Accepted: 11/07/2018] [Indexed: 10/27/2022]
Abstract
Phosphorylated tau (P-tau) has received much attention in the field of Alzheimer's disease (AD), as a potential therapeutic target owing to its involvement with synaptic damage and neuronal dysfunction. The continuous failure of amyloid β (Aβ)-targeted therapeutics highlights the urgency to consider alternative therapeutic strategies for AD. The present review describes the latest developments in tau biology and function. It also explains abnormal interactions between P-tau with Aβ and the mitochondrial fission protein Drp1, leading to excessive mitochondrial fragmentation and synaptic damage in AD neurons. This article also addresses 3D pharmacophore-based drug models designed to treat patients with AD and other tauopathies.
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Affiliation(s)
- Jangampalli Adi Pradeepkiran
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA
| | - Arubala P Reddy
- Pharmacology & Neuroscience Department, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA
| | - P Hemachandra Reddy
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA; Cell Biology & Biochemistry Department, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA; Pharmacology & Neuroscience Department, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA; Neurology Department, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA; Speech, Language and Hearing Sciences Departments, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA; Garrison Institute on Aging, South West Campus, Texas Tech University Health Sciences Center, 6630 S. Quaker Suite E, MS 7495, Lubbock, TX 79413, USA.
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44
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Malekkhaiat Häffner S, Malmsten M. Influence of self-assembly on the performance of antimicrobial peptides. Curr Opin Colloid Interface Sci 2018. [DOI: 10.1016/j.cocis.2018.09.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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45
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Hussain R, Zubair H, Pursell S, Shahab M. Neurodegenerative Diseases: Regenerative Mechanisms and Novel Therapeutic Approaches. Brain Sci 2018; 8:E177. [PMID: 30223579 PMCID: PMC6162719 DOI: 10.3390/brainsci8090177] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/03/2018] [Accepted: 09/12/2018] [Indexed: 12/12/2022] Open
Abstract
Regeneration refers to regrowth of tissue in the central nervous system. It includes generation of new neurons, glia, myelin, and synapses, as well as the regaining of essential functions: sensory, motor, emotional and cognitive abilities. Unfortunately, regeneration within the nervous system is very slow compared to other body systems. This relative slowness is attributed to increased vulnerability to irreversible cellular insults and the loss of function due to the very long lifespan of neurons, the stretch of cells and cytoplasm over several dozens of inches throughout the body, insufficiency of the tissue-level waste removal system, and minimal neural cell proliferation/self-renewal capacity. In this context, the current review summarized the most common features of major neurodegenerative disorders; their causes and consequences and proposed novel therapeutic approaches.
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Affiliation(s)
- Rashad Hussain
- Center for Translational Neuromedicine, University of Rochester, NY 14642, USA.
| | - Hira Zubair
- Department of Animal Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Sarah Pursell
- Center for Translational Neuromedicine, University of Rochester, NY 14642, USA.
| | - Muhammad Shahab
- Department of Animal Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
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46
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Hassink GC, Raiss CC, Segers-Nolten IMJ, van Wezel RJA, Subramaniam V, le Feber J, Claessens MMAE. Exogenous α-synuclein hinders synaptic communication in cultured cortical primary rat neurons. PLoS One 2018; 13:e0193763. [PMID: 29565978 PMCID: PMC5863964 DOI: 10.1371/journal.pone.0193763] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 02/17/2018] [Indexed: 12/25/2022] Open
Abstract
Amyloid aggregates of the protein α-synuclein (αS) called Lewy Bodies (LB) and Lewy Neurites (LN) are the pathological hallmark of Parkinson's disease (PD) and other synucleinopathies. We have previously shown that high extracellular αS concentrations can be toxic to cells and that neurons take up αS. Here we aimed to get more insight into the toxicity mechanism associated with high extracellular αS concentrations (50-100 μM). High extracellular αS concentrations resulted in a reduction of the firing rate of the neuronal network by disrupting synaptic transmission, while the neuronal ability to fire action potentials was still intact. Furthermore, many cells developed αS deposits larger than 500 nm within five days, but otherwise appeared healthy. Synaptic dysfunction clearly occurred before the establishment of large intracellular deposits and neuronal death, suggesting that an excessive extracellular αS concentration caused synaptic failure and which later possibly contributed to neuronal death.
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Affiliation(s)
- G. C. Hassink
- Clinical Neurophysiology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Postbus, Enschede, the Netherlands
- Biomedical Signal and Systems, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Postbus, Enschede, the Netherlands
| | - C. C. Raiss
- Nanobiophysics Group, MESA+ Institute for Nanotechnology, University of Twente, Postbus, Enschede, the Netherlands
| | - I. M. J. Segers-Nolten
- Nanobiophysics Group, MESA+ Institute for Nanotechnology, University of Twente, Postbus, Enschede, the Netherlands
| | - R. J. A. van Wezel
- Biomedical Signal and Systems, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Postbus, Enschede, the Netherlands
- Biophysics, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Postbus, The Netherlands
| | - V. Subramaniam
- Nanobiophysics Group, MESA+ Institute for Nanotechnology, University of Twente, Postbus, Enschede, the Netherlands
| | - J. le Feber
- Clinical Neurophysiology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Postbus, Enschede, the Netherlands
- Biomedical Signal and Systems, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Postbus, Enschede, the Netherlands
- * E-mail:
| | - M. M. A. E. Claessens
- Clinical Neurophysiology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Postbus, Enschede, the Netherlands
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47
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Park SK, Arslan F, Kanneganti V, Barmada SJ, Purushothaman P, Verma SC, Liebman SW. Overexpression of a conserved HSP40 chaperone reduces toxicity of several neurodegenerative disease proteins. Prion 2018; 12:16-22. [PMID: 29308690 DOI: 10.1080/19336896.2017.1423185] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
TDP-43 and FUS are DNA/RNA binding proteins associated with neuronal inclusions in amyotrophic lateral sclerosis (ALS) patients. Other neurodegenerative diseases are also characterized by neuronal protein aggregates, e.g. Huntington's disease, associated with polyglutamine (polyQ) expansions in the protein huntingtin. Here we discuss our recent paper establishing similarities between aggregates of TDP-43 that have short glutamine and asparagine (Q/N)-rich modules and are soluble in detergents, with those of polyQ and PIN4C that have large Q/N-rich domains and are detergent-insoluble. We also present new, similar data for FUS. Together, we show that like overexpression of polyQ or PIN4C, overexpression of FUS or TDP-43 causes inhibition of the ubiquitin proteasome system (UPS) and toxicity, both of which are mitigated by overexpression of the Hsp40 chaperone Sis1. Also, in all cases toxicity is enhanced by the [PIN+] prion. In addition, we show that the Sis1 mammalian homolog DNAJBI reduces toxicity arising from overexpressed FUS and TDP-43 respectively in human embryonic kidney cells and primary rodent neurons. The common properties of these proteins suggest that heterologous aggregates may enhance the toxicity of a variety of disease-related aggregating proteins, and further that chaperones and the UPS may be key therapeutic targets for diseases characterized by protein inclusions.
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Affiliation(s)
- Sei-Kyoung Park
- a Department of Pharmacology , University of Nevada , Reno , NV , USA
| | - Fatih Arslan
- a Department of Pharmacology , University of Nevada , Reno , NV , USA
| | - Vydehi Kanneganti
- a Department of Pharmacology , University of Nevada , Reno , NV , USA
| | - Sami J Barmada
- b Department of Neurology , University of Michigan , Ann Arbor , Michigan , USA
| | | | - Subhash Chandra Verma
- c Department of Molecular Microbiology and Immunology , University of Nevada , Reno , NV , USA
| | - Susan W Liebman
- a Department of Pharmacology , University of Nevada , Reno , NV , USA
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48
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Nouraei N, Mason DM, Miner KM, Carcella MA, Bhatia TN, Dumm BK, Soni D, Johnson DA, Luk KC, Leak RK. Critical appraisal of pathology transmission in the α-synuclein fibril model of Lewy body disorders. Exp Neurol 2018; 299:172-196. [PMID: 29056362 PMCID: PMC5736319 DOI: 10.1016/j.expneurol.2017.10.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 10/17/2017] [Indexed: 12/31/2022]
Abstract
Lewy body disorders are characterized by the emergence of α-synucleinopathy in many parts of the central and peripheral nervous systems, including in the telencephalon. Dense α-synuclein+ pathology appears in regio inferior of the hippocampus in both Parkinson's disease and dementia with Lewy bodies and may disturb cognitive function. The preformed α-synuclein fibril model of Parkinson's disease is growing in use, given its potential for seeding the self-propagating spread of α-synucleinopathy throughout the mammalian brain. Although it is often assumed that the spread occurs through neuroanatomical connections, this is generally not examined vis-à-vis the uptake and transport of tract-tracers infused at precisely the same stereotaxic coordinates. As the neuronal connections of the hippocampus are historically well defined, we examined the first-order spread of α-synucleinopathy three months following fibril infusions centered in the mouse regio inferior (CA2+CA3), and contrasted this to retrograde and anterograde transport of the established tract-tracers FluoroGold and biotinylated dextran amines (BDA). Massive hippocampal α-synucleinopathy was insufficient to elicit memory deficits or loss of cells and synaptic markers in this model of early disease processes. However, dense α-synuclein+ inclusions in the fascia dentata were negatively correlated with memory capacity. A modest compensatory increase in synaptophysin was evident in the stratum radiatum of cornu Ammonis in fibril-infused animals, and synaptophysin expression correlated inversely with memory function in fibril but not PBS-infused mice. No changes in synapsin I/II expression were observed. The spread of α-synucleinopathy was somewhat, but not entirely consistent with FluoroGold and BDA axonal transport, suggesting that variables other than innervation density also contribute to the materialization of α-synucleinopathy. For example, layer II entorhinal neurons of the perforant pathway exhibited somal α-synuclein+ inclusions as well as retrogradely labeled FluoroGold+ somata. However, some afferent brain regions displayed dense retrograde FluoroGold label and no α-synuclein+ inclusions (e.g. medial septum/diagonal band), supporting the selective vulnerability hypothesis. The pattern of inclusions on the contralateral side was consistent with specific spread through commissural connections (e.g. stratum pyramidale of CA3), but again, not all commissural projections exhibited α-synucleinopathy (e.g. hilar mossy cells). The topographical extent of inclusions is displayed here in high-resolution images that afford viewers a rich opportunity to dissect the potential spread of pathology through neural circuitry. Finally, the results of this expository study were leveraged to highlight the challenges and limitations of working with preformed α-synuclein fibrils.
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Affiliation(s)
- Negin Nouraei
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - Daniel M Mason
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - Kristin M Miner
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - Michael A Carcella
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - Tarun N Bhatia
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - Benjamin K Dumm
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - Dishaben Soni
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - David A Johnson
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - Kelvin C Luk
- Department of Pathology, University of Pennsylvania, Philadelphia, PA 19147, United States
| | - Rehana K Leak
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States.
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49
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Miguelez-Rodriguez A, Santos-Juanes J, Vicente-Etxenausia I, Perez de Heredia-Goñi K, Garcia B, Quiros LM, Lorente-Gea L, Guerra-Merino I, Aguirre JJ, Fernandez-Vega I. Brains with sporadic Creutzfeldt-Jakob disease and copathology showed a prolonged end-stage of disease. J Clin Pathol 2017; 71:446-450. [PMID: 29097599 DOI: 10.1136/jclinpath-2017-204794] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 10/16/2017] [Accepted: 10/18/2017] [Indexed: 01/28/2023]
Abstract
AIMS To investigate the expression of major proteins related to primary neurodegenerative diseases and their prognostic significance in brains with Creutzfeldt-Jakob disease (CJD). MATERIALS AND METHODS Thirty consecutive cases of confirmed CJD during the period 2010-2015 at Basque Brain bank were retrospectively reviewed. Moreover, major neurodegenerative-associated proteins (phosphorylated Tau, 4R tau, 3R tau, alpha-synuclein, TDP43, amyloid beta) were tested. Clinical data were reviewed. Cases were divided according to the presence or absence of copathology. Survival curves were also determined. RESULTS Copathology was significantly associated with survival in brains with CJD (4.2±1.2 vs 9.2±1.9; P=0.019) and in brains with MM1/MV1 CJD (2.1±1.0 vs 6.7±2.8; P=0.012). Besides, the presence of more than one major neurodegenerative-associated protein was significantly associated with survival (4.2±1.2 vs 10.7±2.6; P=0.017). Thus, univariate analyses further pointed out variables significantly associated with better survival: copathology in CJD (HR=0.430; P=0.033); more than one neurodegenerative-associated protein in CJD (HR=0.369; P=0.036) and copathology in MM1/MV1 CJD (HR=0.525; P=0.032). CONCLUSION The existence of copathology significantly prolongs survival in patients with rapidly progressive dementia due to CJD. The study of major neurodegenerative-associated proteins in brains with CJD could allow us to further understand the molecular mechanisms behind prion diseases.
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Affiliation(s)
| | - Jorge Santos-Juanes
- Department of Pathology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Ikerne Vicente-Etxenausia
- Biobanco Vasco para la Investigación (O+eHun), Brain Bank, Hospital Universitario Araba, Vitoria-Gasteiz, Spain
| | - Katty Perez de Heredia-Goñi
- Biobanco Vasco para la Investigación (O+eHun), Brain Bank, Hospital Universitario Araba, Vitoria-Gasteiz, Spain
| | - Beatriz Garcia
- Scientific Department, Instituto Universitario Fernández-Vega, Oviedo, Spain
| | - Luis M Quiros
- Scientific Department, Instituto Universitario Fernández-Vega, Oviedo, Spain.,Department of Functional Biology, University of Oviedo, Oviedo, Spain
| | - Laura Lorente-Gea
- Department of Pathology, Hospital Universitario de Araba-Txagorritxu, Vitoria-Gasteiz, Spain
| | - Isabel Guerra-Merino
- Faculty of Medicine, University of Basque Country, Vitoria, Spain.,Biobanco Vasco para la Investigación (O+eHun), Brain Bank, Hospital Universitario Araba, Vitoria-Gasteiz, Spain.,Department of Pathology, Hospital Universitario de Araba-Txagorritxu, Vitoria-Gasteiz, Spain
| | - Jose J Aguirre
- Department of Pathology, Hospital Universitario de Araba-Txagorritxu, Vitoria-Gasteiz, Spain
| | - Ivan Fernandez-Vega
- Department of Pathology, Hospital Universitario Central de Asturias, Oviedo, Spain.,Biobanco Vasco para la Investigación (O+eHun), Brain Bank, Hospital Universitario Araba, Vitoria-Gasteiz, Spain.,Scientific Department, Instituto Universitario Fernández-Vega, Oviedo, Spain.,Department of Pathology, Hospital Universitario de Araba-Txagorritxu, Vitoria-Gasteiz, Spain
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50
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Ibáñez-Salazar A, Bañuelos-Hernández B, Rodríguez-Leyva I, Chi-Ahumada E, Monreal-Escalante E, Jiménez-Capdeville ME, Rosales-Mendoza S. Oxidative Stress Modifies the Levels and Phosphorylation State of Tau Protein in Human Fibroblasts. Front Neurosci 2017; 11:495. [PMID: 28936161 PMCID: PMC5594088 DOI: 10.3389/fnins.2017.00495] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 08/22/2017] [Indexed: 12/11/2022] Open
Abstract
Since the tau protein is closely involved in the physiopathology of Alzheimer's disease (AD), studying its behavior in cellular models might lead to new insights on understanding this devastating disease at molecular levels. In the present study, primary cultures of human fibroblasts were established and used to determine the expression and localization of the tau protein in distinct phosphorylation states in both untransfected and tau gene-transfected cells subjected to oxidative stress. Higher immunopositivity to phospho-tau was observed in cell nuclei in response to oxidative stress, while the levels of total tau in the cytosol remained unchanged. These findings were observed in both untransfected cells and those transfected with the tau gene. The present work represents a useful model for studying the physiopathology of AD at the cellular level in terms of tau protein implications.
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Affiliation(s)
- Alejandro Ibáñez-Salazar
- Laboratorio de Biofarmacéuticos Recombinantes, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis PotosíSan Luis Potosí, Mexico
- Sección de Biotecnología, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis PotosíSan Luis Potosí, Mexico
| | - Bernardo Bañuelos-Hernández
- Laboratorio de Biofarmacéuticos Recombinantes, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis PotosíSan Luis Potosí, Mexico
- Sección de Biotecnología, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis PotosíSan Luis Potosí, Mexico
| | | | - Erika Chi-Ahumada
- Facultad de Medicina, Universidad Autónoma de San Luis PotosíSan Luis Potosí, Mexico
| | - Elizabeth Monreal-Escalante
- Laboratorio de Biofarmacéuticos Recombinantes, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis PotosíSan Luis Potosí, Mexico
- Sección de Biotecnología, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis PotosíSan Luis Potosí, Mexico
| | | | - Sergio Rosales-Mendoza
- Laboratorio de Biofarmacéuticos Recombinantes, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis PotosíSan Luis Potosí, Mexico
- Sección de Biotecnología, Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis PotosíSan Luis Potosí, Mexico
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