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Droppelmann CA, Campos-Melo D, Noches V, McLellan C, Szabla R, Lyons TA, Amzil H, Withers B, Kaplanis B, Sonkar KS, Simon A, Buratti E, Junop M, Kramer JM, Strong MJ. Mitigation of TDP-43 toxic phenotype by an RGNEF fragment in amyotrophic lateral sclerosis models. Brain 2024; 147:2053-2068. [PMID: 38739752 PMCID: PMC11146434 DOI: 10.1093/brain/awae078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 01/24/2024] [Accepted: 02/08/2024] [Indexed: 05/16/2024] Open
Abstract
Aggregation of the RNA-binding protein TAR DNA binding protein (TDP-43) is a hallmark of TDP-proteinopathies including amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). As TDP-43 aggregation and dysregulation are causative of neuronal death, there is a special interest in targeting this protein as a therapeutic approach. Previously, we found that TDP-43 extensively co-aggregated with the dual function protein GEF (guanine exchange factor) and RNA-binding protein rho guanine nucleotide exchange factor (RGNEF) in ALS patients. Here, we show that an N-terminal fragment of RGNEF (NF242) interacts directly with the RNA recognition motifs of TDP-43 competing with RNA and that the IPT/TIG domain of NF242 is essential for this interaction. Genetic expression of NF242 in a fruit fly ALS model overexpressing TDP-43 suppressed the neuropathological phenotype increasing lifespan, abolishing motor defects and preventing neurodegeneration. Intracerebroventricular injections of AAV9/NF242 in a severe TDP-43 murine model (rNLS8) improved lifespan and motor phenotype, and decreased neuroinflammation markers. Our results demonstrate an innovative way to target TDP-43 proteinopathies using a protein fragment with a strong affinity for TDP-43 aggregates and a mechanism that includes competition with RNA sequestration, suggesting a promising therapeutic strategy for TDP-43 proteinopathies such as ALS and FTD.
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Affiliation(s)
- Cristian A Droppelmann
- Molecular Medicine Group, Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Danae Campos-Melo
- Molecular Medicine Group, Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Veronica Noches
- Molecular Medicine Group, Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Crystal McLellan
- Molecular Medicine Group, Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Robert Szabla
- Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Taylor A Lyons
- Molecular Medicine Group, Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Hind Amzil
- Molecular Medicine Group, Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Benjamin Withers
- Molecular Medicine Group, Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Brianna Kaplanis
- Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Kirti S Sonkar
- International Centre for Genetic Engineering and Biotechnology (ICGEB), AREA Science Park, 34149 Trieste, Italy
| | - Anne Simon
- Department of Biology, Faculty of Science, Western University, London, Ontario N6A 5B7, Canada
| | - Emanuele Buratti
- International Centre for Genetic Engineering and Biotechnology (ICGEB), AREA Science Park, 34149 Trieste, Italy
| | - Murray Junop
- Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
| | - Jamie M Kramer
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Michael J Strong
- Molecular Medicine Group, Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
- Department of Clinical Neurological Sciences, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 5C1, Canada
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2
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Gupta P, Gupta RK, Gandhi BS, Singh P. Differential binding of CREB and REST/NRSF to NMDAR1 promoter is associated with the sex-selective cognitive deficit following postnatal PBDE-209 exposure in mice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:38710-38722. [PMID: 37002525 DOI: 10.1007/s11356-023-26107-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 02/20/2023] [Indexed: 06/19/2023]
Abstract
Neonatal exposure to decabromodiphenyl ether (PBDE-209), a widely used flame retardant, affects cognitive performances in the later stage of life in a sex-dependent manner. PBDE-209 interferes with glutamatergic signaling and N-methyl-D-aspartate receptor (NMDAR) subunits with unresolved regulatory mechanisms. This study exposed male and female mice pups through postnatal day (PND) 3-10 to PBDE-209 (oral dose: 0, 6, or 20 mg/kg body weight). The frontal cortex and hippocampus, collected from neonate (PND 11) and young (PND 60) mice, were analyzed for cAMP response element-binding protein (CREB) and RE1-silencing transcription factor/ Neuron-restrictive silencer factor (REST/NRSF) binding to NMDAR1 promoter and expression of NMDAR1 gene by electrophoretic mobility shift assay and semi-quantitative RT-PCR respectively. Behavioral changes were assessed using spontaneous alternation behavior and novel object recognition tests in young mice. In neonates, the binding of CREB was increased, while REST/NRSF was decreased significantly to their cognate NMDAR1 promoter sequences at the high dose of PBDE-209 in both the sexes. This reciprocal pattern of CREB and REST/NRSF interactions correlates with the up-regulation of NMDAR1 expression. Young males followed a similar pattern of CREB and REST/NRSF binding and NMDAR1 expression as in neonates. Surprisingly, young females did not show any alteration when compared to age-matched controls. Also, we found that only young males showed working and recognition memory deficits. These results indicate that early exposure to PBDE-209 interferes with CREB- and REST/NRSF-dependent regulation of the NMDAR1 gene in an acute setting. However, long-term effects persist only in young males that could be associated with cognitive impairment.
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Affiliation(s)
- Priya Gupta
- Department of Zoology, Women's College, Banaras Hindu University, Varanasi, UP, India
| | - Rajaneesh K Gupta
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, UP, India
| | - Behrose S Gandhi
- Department of Zoology, Women's College, Banaras Hindu University, Varanasi, UP, India
| | - Poonam Singh
- Department of Zoology, Women's College, Banaras Hindu University, Varanasi, UP, India.
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3
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Jellinger KA. The Spectrum of Cognitive Dysfunction in Amyotrophic Lateral Sclerosis: An Update. Int J Mol Sci 2023; 24:14647. [PMID: 37834094 PMCID: PMC10572320 DOI: 10.3390/ijms241914647] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/21/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Cognitive dysfunction is an important non-motor symptom in amyotrophic lateral sclerosis (ALS) that has a negative impact on survival and caregiver burden. It shows a wide spectrum ranging from subjective cognitive decline to frontotemporal dementia (FTD) and covers various cognitive domains, mainly executive/attention, language and verbal memory deficits. The frequency of cognitive impairment across the different ALS phenotypes ranges from 30% to 75%, with up to 45% fulfilling the criteria of FTD. Significant genetic, clinical, and pathological heterogeneity reflects deficits in various cognitive domains. Modern neuroimaging studies revealed frontotemporal degeneration and widespread involvement of limbic and white matter systems, with hypometabolism of the relevant areas. Morphological substrates are frontotemporal and hippocampal atrophy with synaptic loss, associated with TDP-43 and other co-pathologies, including tau deposition. Widespread functional disruptions of motor and extramotor networks, as well as of frontoparietal, frontostriatal and other connectivities, are markers for cognitive deficits in ALS. Cognitive reserve may moderate the effect of brain damage but is not protective against cognitive decline. The natural history of cognitive dysfunction in ALS and its relationship to FTD are not fully understood, although there is an overlap between the ALS variants and ALS-related frontotemporal syndromes, suggesting a differential vulnerability of motor and non-motor networks. An assessment of risks or the early detection of brain connectivity signatures before structural changes may be helpful in investigating the pathophysiological mechanisms of cognitive impairment in ALS, which might even serve as novel targets for effective disease-modifying therapies.
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Affiliation(s)
- Kurt A Jellinger
- Institute of Clinical Neurobiology, Alberichgasse 5/13, A-1150 Vienna, Austria
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4
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Zhu L, Li S, Li XJ, Yin P. Pathological insights from amyotrophic lateral sclerosis animal models: comparisons, limitations, and challenges. Transl Neurodegener 2023; 12:46. [PMID: 37730668 PMCID: PMC10510301 DOI: 10.1186/s40035-023-00377-7] [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: 06/02/2023] [Accepted: 09/01/2023] [Indexed: 09/22/2023] Open
Abstract
In order to dissect amyotrophic lateral sclerosis (ALS), a multigenic, multifactorial, and progressive neurodegenerative disease with heterogeneous clinical presentations, researchers have generated numerous animal models to mimic the genetic defects. Concurrent and comparative analysis of these various models allows identification of the causes and mechanisms of ALS in order to finally obtain effective therapeutics. However, most genetically modified rodent models lack overt pathological features, imposing challenges and limitations in utilizing them to rigorously test the potential mechanisms. Recent studies using large animals, including pigs and non-human primates, have uncovered important events that resemble neurodegeneration in patients' brains but could not be produced in small animals. Here we describe common features as well as discrepancies among these models, highlighting new insights from these models. Furthermore, we will discuss how to make rodent models more capable of recapitulating important pathological features based on the important pathogenic insights from large animal models.
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Affiliation(s)
- Longhong Zhu
- Guangdong Key Laboratory of Non-Human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Shihua Li
- Guangdong Key Laboratory of Non-Human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Xiao-Jiang Li
- Guangdong Key Laboratory of Non-Human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China.
| | - Peng Yin
- Guangdong Key Laboratory of Non-Human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China.
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5
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Lansdell TA, Xu H, Galligan JJ, Dorrance AM. Effects of Striatal Amyloidosis on the Dopaminergic System and Behavior: A Comparative Study in Male and Female 5XFAD Mice. J Alzheimers Dis 2023; 94:1361-1375. [PMID: 37424461 DOI: 10.3233/jad-220905] [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] [Indexed: 07/11/2023]
Abstract
BACKGROUND Nearly two-thirds of patients diagnosed with Alzheimer's disease (AD) are female. In addition, female patients with AD have more significant cognitive impairment than males at the same disease stage. This disparity suggests there are sex differences in AD progression. While females appear to be more affected by AD, most published behavioral studies utilize male mice. In humans, there is an association between antecedent attention-deficit/hyperactivity disorder and increased risk of dementia. Functional connectivity studies indicate that dysfunctional cortico-striatal networks contribute to hyperactivity in attention deficit hyperactivity disorder. Higher plaque density in the striatum accurately predicts the presence of clinical AD pathology. In addition, there is a link between AD-related memory dysfunction and dysfunctional dopamine signaling. OBJECTIVE With the need to consider sex as a biological variable, we investigated the influence of sex on striatal plaque burden, dopaminergic signaling, and behavior in prodromal 5XFAD mice. METHODS Six-month-old male and female 5XFAD and C57BL/6J mice were evaluated for striatal amyloid plaque burden, locomotive behavior, and changes in dopaminergic machinery in the striatum. RESULTS 5XFAD female mice had a higher striatal amyloid plaque burden than male 5XFAD mice. 5XFAD females, but not males, were hyperactive. Hyperactivity in female 5XFAD mice was associated with increased striatal plaque burden and changes in dopamine signaling in the dorsal striatum. CONCLUSION Our results indicate that the progression of amyloidosis involves the striatum in females to a greater extent than in males. These studies have significant implications for using male-only cohorts in the study of AD progression.
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Affiliation(s)
- Theresa A Lansdell
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA
| | - Hui Xu
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA
| | - James J Galligan
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA
| | - Anne M Dorrance
- Department of Pharmacology and Toxicology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA
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6
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Zhou Z, Li K, Guo J, Wang Y, Wei Y, Duan J, Chen M, Shi L, Hu W. Green Tea Catechin EGCG Ameliorates Thioacetamide-Induced Hepatic Encephalopathy in Rats via Modulation of the Microbiota-Gut-Liver Axis. Mol Nutr Food Res 2022; 67:e2200821. [PMID: 36573265 DOI: 10.1002/mnfr.202200821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 11/23/2022] [Indexed: 12/28/2022]
Abstract
SCOPE Existing research suggests that (-)-epigallocatechin-3-gallate (EGCG), which is a natural tea catechin active substance, can protect against liver injury. However, its mechanism for hepatic encephalopathy (HE) treatment is still unclear. In this study, the role of EGCG in the amelioration of HE rats and the effect on the microbiota-gut-liver axis are mainly analyzed. METHODS AND RESULTS Thioacetamide (TAA) is employed to induce the HE model in rats. The results of open field test show that EGCG restores locomotor activity and exploratory behavior. Histological and biochemical results demonstrate that EGCG ameliorates brain and liver damage, decreases the expression of pro-inflammatory cytokines, and increases the activity of antioxidant enzymes. Meanwhile, EGCG modulates the Nrf2 pathway and TLR4/NF-κB pathway to mitigate TAA-induced oxidative stress and inflammatory responses. Immunohistochemistry reveals protection of the intestinal barrier by EGCG upregulating the expression of occludin and zonula occludens-1. Furthermore, serum levels of ammonia and LPS are reduced. 16S rRNA analysis shows that EGCG treatment increases the abundance of beneficial bacteria (e.g., Bifidobacterium, Lactobacillus, and Limosilactobacillus). CONCLUSION The above results reveal that EGCG has anti-oxidative stress and anti-inflammatory effects, and ameliorates the condition through the microbiota-gut-liver axis, with potential for the treatment of HE.
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Affiliation(s)
- Zhengming Zhou
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Ke Li
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Jiankui Guo
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yunfeng Wang
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yaoyao Wei
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Juan Duan
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Muxi Chen
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lei Shi
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Wen Hu
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
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7
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Petel Légaré V, Rampal CJ, Gurberg TJN, Harji ZA, Allard-Chamard X, Rodríguez EC, Armstrong GAB. Development of an endogenously myc-tagged TARDBP (TDP-43) zebrafish model using the CRISPR/Cas9 system and homology directed repair. Comp Biochem Physiol B Biochem Mol Biol 2022; 261:110756. [PMID: 35580804 DOI: 10.1016/j.cbpb.2022.110756] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 05/08/2022] [Accepted: 05/11/2022] [Indexed: 11/25/2022]
Abstract
Many of the modern advances in cellular biology have been made by the expression of engineered constructs with epitope tags for subsequent biochemical investigations. While the utility of epitope tags has permitted insights in cellular and animal models, these are often expressed using traditional transgenic approaches. Using the CRISPR/Cas9 system and homology directed repair we recombine a single myc epitope sequence following the start codon of the zebrafish ortholog of TARDBP (TDP-43). TDP-43 is an RNA binding protein that is involved in the neurodegenerative disease amyotrophic lateral sclerosis and frontotemporal dementia. We report that zebrafish expressing the myc-tardbp engendered allele produced a stable protein that was detected by both western blot and immunofluorescence. Furthermore, both heterozygous and homozygous carriers of the myc-tardbp allele developed to sexual maturity. We propose that the methodology used here will be useful for zebrafish researchers and other comparative animal biologists interested in developing animal models expressing endogenously tagged proteins.
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Affiliation(s)
- Virginie Petel Légaré
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, Faculty of Medicine, McGill University. https://twitter.com/virginiepet
| | - Christian J Rampal
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, Faculty of Medicine, McGill University. https://twitter.com/ChristianRampal
| | - Tyler J N Gurberg
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, Faculty of Medicine, McGill University
| | - Ziyaan A Harji
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, Faculty of Medicine, McGill University. https://twitter.com/ziyaanharji
| | - Xavier Allard-Chamard
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, Faculty of Medicine, McGill University
| | - Esteban C Rodríguez
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, Faculty of Medicine, McGill University
| | - Gary A B Armstrong
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, Faculty of Medicine, McGill University.
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8
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Gois AM, Bispo JM, Lins LC, Medeiros KA, Souza MF, Santos ER, Santos JF, Ribeiro AM, Silva RH, Paixão MO, Leopoldino JF, Marchioro M, Santos JR, Mendonça DM. Motor behavioral abnormalities and histopathological findings in middle aged male Wistar rats inoculated with cerebrospinal fluid from patients with Amyotrophic Lateral Sclerosis. CURRENT RESEARCH IN BEHAVIORAL SCIENCES 2022. [DOI: 10.1016/j.crbeha.2022.100069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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9
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Ahmed ME, Selvakumar GP, Kempuraj D, Raikwar SP, Thangavel R, Bazley K, Wu K, Khan O, Khan A, Zaheer S, Iyer S, Burton C, James D, Zaheer A. Glia Maturation Factor (GMF) Regulates Microglial Expression Phenotypes and the Associated Neurological Deficits in a Mouse Model of Traumatic Brain Injury. Mol Neurobiol 2020; 57:4438-4450. [PMID: 32737763 DOI: 10.1007/s12035-020-02040-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 07/24/2020] [Indexed: 12/20/2022]
Abstract
Traumatic brain injury (TBI) induces inflammatory responses through microglial activation and polarization towards a more inflammatory state that contributes to the deleterious secondary brain injury. Glia maturation factor (GMF) is a pro-inflammatory protein that is responsible for neuroinflammation following insult to the brain, such as in TBI. We hypothesized that the absence of GMF in GMF-knockout (GMF-KO) mice would regulate microglial activation state and the M1/M2 phenotypes following TBI. We used the weight drop model of TBI in C57BL/6 mice wild-type (WT) and GMF-KO mice. Immunofluorescence staining, Western blot, and ELISA assays were performed to confirm TBI-induced histopathological and neuroinflammatory changes. Behavioral analysis was done to check motor coordination ability and cognitive function. We demonstrated that the deletion of GMF in GMF-KO mice significantly limited lesion volume, attenuated neuronal loss, inhibited gliosis, and activated microglia adopted predominantly anti-inflammatory (M2) phenotypes. Using an ELISA method, we found a gradual decrease in pro-inflammatory cytokines (TNF-α and IL-6) and upregulation of anti-inflammatory cytokines (IL-4 and IL-10) in GMF-KO mice compared with WT mice, thus, promoting the transition of microglia towards a more predominantly anti-inflammatory (M2) phenotype. GMF-KO mice showed significant improvement in motor ability, memory, and cognition. Overall, our results demonstrate that GMF deficiency regulates microglial polarization, which ameliorates neuronal injury and behavioral impairments following TBI in mice and concludes that GMF is a regulator of neuroinflammation and an ideal therapeutic target for the treatment of TBI.
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Affiliation(s)
- Mohammad Ejaz Ahmed
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri 65211, USA
| | - Govindhasamy Pushpavathi Selvakumar
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri 65211, USA
| | - Duraisamy Kempuraj
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri 65211, USA
| | - Sudhanshu P Raikwar
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri 65211, USA
| | - Ramasamy Thangavel
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri 65211, USA
| | - Kieran Bazley
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
| | - Kristopher Wu
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
| | - Osaid Khan
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
| | - Asher Khan
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
| | - Smita Zaheer
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
| | - Shankar Iyer
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri 65211, USA
| | | | | | - Asgar Zaheer
- Department of Neurology, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA.
- Center for Translational Neuroscience, School of Medicine, University of Missouri, Columbia, Missouri 65211, USA.
- Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri 65211, USA.
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10
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de Munter J, Babaevskaya D, Wolters EC, Pavlov D, Lysikova E, V Kalueff A, Gorlova A, Oplatchikova M, Pomytkin IA, Proshin A, Umriukhin A, Lesch KP, Strekalova T. Molecular and behavioural abnormalities in the FUS-tg mice mimic frontotemporal lobar degeneration: Effects of old and new anti-inflammatory therapies. J Cell Mol Med 2020; 24:10251-10257. [PMID: 32667139 PMCID: PMC7520339 DOI: 10.1111/jcmm.15628] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 01/24/2023] Open
Abstract
Genetic mutations in FUS, a DNA/RNA‐binding protein, are associated with inherited forms of frontotemporal lobar degeneration (FTLD) and amyotrophic lateral sclerosis (ALS). A novel transgenic FUS[1‐359]‐tg mouse line recapitulates core hallmarks of human ALS in the spinal cord, including neuroinflammation and neurodegeneration, ensuing muscle atrophy and paralysis, as well as brain pathomorphological signs of FTLD. However, a question whether FUS[1‐359]‐tg mouse displays behavioural and brain pro‐inflammatory changes characteristic for the FTLD syndrome was not addressed. Here, we studied emotional, social and cognitive behaviours, brain markers of inflammation and plasticity of pre‐symptomatic FUS[1‐359]‐tg male mice, a potential FTLD model. These animals displayed aberrant behaviours and altered brain expression of inflammatory markers and related pathways that are reminiscent to the FTLD‐like syndrome. FTLD‐related behavioural and molecular Journal of Cellular and Molecular Medicine features were studied in the pre‐symptomatic FUS[1‐359]‐tg mice that received standard or new ALS treatments, which have been reported to counteract the ALS‐like syndrome in the mutants. We used anti‐ALS drug riluzole (8 mg/kg/d), or anti‐inflammatory drug, a selective blocker of cyclooxygenase‐2 (celecoxib, 30 mg/kg/d) for 3 weeks, or a single intracerebroventricular (i.c.v.) infusion of human stem cells (Neuro‐Cells, 500 000‐CD34+), which showed anti‐inflammatory properties. Signs of elevated anxiety, depressive‐like behaviour, cognitive deficits and abnormal social behaviour were less marked in FUS‐tg–treated animals. Applied treatments have normalized protein expression of interleukin‐1β (IL‐1β) in the prefrontal cortex and the hippocampus, and of Iba‐1 and GSK‐3β in the hippocampus. Thus, the pre‐symptomatic FUS[1‐359]‐tg mice demonstrate FTLD‐like abnormalities that are attenuated by standard and new ALS treatments, including Neuro‐Cell preparation.
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Affiliation(s)
- Johannes de Munter
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Diana Babaevskaya
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Erik Ch Wolters
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Dmitrii Pavlov
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands.,Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.,Laboratory of Cognitive Dysfunctions, Institute of General Pathology and Pathophysiology, Moscow, Russia.,Department of Advanced Cell Technologies, Institute of Regenerative Medicine, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | | | - Allan V Kalueff
- Faculty of Biology, Ural Federal University, Ekaterinburg, Russia.,Institute of Translational Biomedicine and Institute of Experimental Medicine, St. Petersburg State University and Almazov Medical Research Center, St. Petersburg, Russia
| | - Anna Gorlova
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands.,Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Margarita Oplatchikova
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Igor A Pomytkin
- Department of Advanced Cell Technologies, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Andrey Proshin
- PK Anokhin Research Institute of Normal Physiology, Moscow, Russia
| | - Aleksei Umriukhin
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.,PK Anokhin Research Institute of Normal Physiology, Moscow, Russia
| | - Klaus-Peter Lesch
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands.,Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.,Division of Molecular Psychiatry, Center of Mental Health, University of Würzburg, Würzburg, Germany
| | - Tatyana Strekalova
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands.,Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.,Division of Molecular Psychiatry, Center of Mental Health, University of Würzburg, Würzburg, Germany
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11
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Ahmed ME, Selvakumar GP, Thangavel R, Kempuraj D, Raikwar SP, Zaheer S, Iyer S, Zaheer A. Immune Suppression of Glia Maturation Factor Reverses Behavioral Impairment, Attenuates Amyloid Plaque Pathology and Neuroinflammation in an Alzheimer's Disease Mouse Model. J Neuroimmune Pharmacol 2020; 16:363-375. [PMID: 32504312 DOI: 10.1007/s11481-020-09929-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 05/26/2020] [Indexed: 12/25/2022]
Abstract
Alzheimer's disease (AD) is an irreversible progressive neurodegenerative disorder recognized by accumulation of amyloid-plaques (APs) and neurofibrillary tangles (NFTs) and eventually loss of memory. Glia maturation factor (GMF), a neuroinflammatory protein first time isolated and cloned in our laboratory plays an important role in the pathogenesis of AD. However, no studies have been reported on whether anti-GMF antibody administration could downregulate neuroinflammation and attenuate amyloid pathology in AD brain. We investigated the potential effect of single dose of (2 mg/kg b.wt/mouse) intravenously (iv) injected with anti-GMF antibodyon cognitive function, neuroprotection, neuroinflammation and Aβ load in the brain of 9-month-old 5XFAD mice. Following 4 weeks of anti-GMF antibody delivery in mice, we found reduced expression of GMF, astrocytic glial fibrillary acidic protein (GFAP) and microglial ionizing calcium binding adaptor molecule 1 (Iba1) as well as improvement inneuroinflammatory response via inhibition of pro-inflammatory cytokines (TNF-α, IL-1β and IL-6) production and amyloid pathology in the cerebral cortex and hippocampal CA1 region of 5XFAD mice. Correspondingly, blockade of GMF function with anti-GMF antibody improved spatial learning, memory, and long-term recognition memory in 5XFAD mice. The present study demonstrates that the immune checkpoint blockade of GMF function with anti-GMF antibody coordinates anti-inflammatory effects to attenuate neurodegeneration in the cortex and hippocampal CA1 region of 5XFAD mouse brain. Further, our data suggest, that pharmacological immune neutralization of GMF is a promising neuroprotective strategy totherapeutically target neuroinflammation and neurodegeneration in AD. Graphical Abstract 5XFAD mice Polyclonal anti-GMF antibody.
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Affiliation(s)
- Mohammad Ejaz Ahmed
- Department of Neurology and Center for Translational Neuroscience, School of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | - Govindhasamy Pushpavathi Selvakumar
- Department of Neurology and Center for Translational Neuroscience, School of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | - Ramasamy Thangavel
- Department of Neurology and Center for Translational Neuroscience, School of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | - Duraisamy Kempuraj
- Department of Neurology and Center for Translational Neuroscience, School of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | - Sudhanshu P Raikwar
- Department of Neurology and Center for Translational Neuroscience, School of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | - Smita Zaheer
- Department of Neurology and Center for Translational Neuroscience, School of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, USA
| | - Shankar Iyer
- Department of Neurology and Center for Translational Neuroscience, School of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA
| | - Asgar Zaheer
- Department of Neurology and Center for Translational Neuroscience, School of Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO, USA.
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO, USA.
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12
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Gois AM, Mendonça DMF, Freire MAM, Santos JR. IN VITRO AND IN VIVO MODELS OF AMYOTROPHIC LATERAL SCLEROSIS: AN UPDATED OVERVIEW. Brain Res Bull 2020; 159:32-43. [PMID: 32247802 DOI: 10.1016/j.brainresbull.2020.03.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 03/04/2020] [Accepted: 03/20/2020] [Indexed: 12/11/2022]
Abstract
Amyotrophic Lateral Sclerosis (ALS) is a progressive, neurodegenerative disease characterized by loss of upper motor neurons (UMN) and lower motor neurons (LMN). Disease affects people all over the world and is more prevalent in men. Patients with ALS develop extensive muscle wasting, paralysis and ultimately death, with a median survival of usually fewer than five years after disease onset. ALS may be sporadic (sALS, 90%) or familial (fALS, 10%). The large majority of fALS cases are associated with genetic alterations, which are mainly related to the genes SOD1, TDP-43, FUS, and C9ORF72. In vitro and in vivo models have helped elucidate ALS etiology and pathogenesis, as well as its molecular, cellular, and physiological mechanisms. Many studies in cell cultures and animal models, such as Caenorhabditis elegans, Drosophila melanogaster, zebrafish, rodents, and non-human primates have been performed to clarify the relationship of these genes to ALS disease. However, there are inherent limitations to consider when using experimental models. In this review, we provide an updated overview of the most used in vitro and in vivo studies that have contributed to a better understanding of the different ALS pathogenic mechanisms.
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Affiliation(s)
- Auderlan M Gois
- Behavioral and Evolutionary Neurobiology Laboratory, Department of Biosciences, Federal University of Sergipe, Itabaiana, SE, Brazil
| | - Deise M F Mendonça
- Laboratory of Neurobiology of Degenerative Diseases of the Nervous System, Department of Biosciences, Federal University of Sergipe, Itabaiana, SE, Brazil
| | - Marco Aurelio M Freire
- Postgraduation Program in Health and Society, Faculty of Health Sciences, University of the State of Rio Grande do Norte, Mossoró, RN, Brazil
| | - Jose R Santos
- Behavioral and Evolutionary Neurobiology Laboratory, Department of Biosciences, Federal University of Sergipe, Itabaiana, SE, Brazil.
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13
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Silva PR, Nieva GV, Igaz LM. Suppression of Conditional TDP-43 Transgene Expression Differentially Affects Early Cognitive and Social Phenotypes in TDP-43 Mice. Front Genet 2019; 10:369. [PMID: 31068973 PMCID: PMC6491777 DOI: 10.3389/fgene.2019.00369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 04/08/2019] [Indexed: 12/11/2022] Open
Abstract
Dysregulation of TAR DNA-binding protein 43 (TDP-43) is a hallmark feature of frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS), two fatal neurodegenerative diseases. TDP-43 is a ubiquitously expressed RNA-binding protein with many physiological functions, playing a role in multiple aspects of RNA metabolism. We developed transgenic mice conditionally overexpressing human wild-type TDP-43 protein (hTDP-43-WT) in forebrain neurons, a model that recapitulates several key features of FTD. After post-weaning transgene (TG) induction during 1 month, these mice display an early behavioral phenotype, including impaired cognitive and social function with no substantial motor abnormalities. In order to expand the analysis of this model, we took advantage of the temporal and regional control of TG expression possible in these mice. We behaviorally evaluated mice at two different times: after 2 weeks of post-weaning TG induction (0.5 month group) and after subsequent TG suppression for 2 weeks following that time point [1 month (sup) group]. We found no cognitive abnormalities after 0.5 month of hTDP-43 expression, evaluated with a spatial working memory task (Y-maze test). Suppression of TG expression with doxycycline (Dox) at this time point prevented the development of cognitive deficits previously observed at 1 month post-induction, as revealed by the performance of the 1 month (sup) group. On the other hand, sociability deficits (assessed through the social interaction test) appeared very rapidly after Dox removal (0.5 month) and TG suppression was not sufficient to reverse this phenotype, indicating differential vulnerability to hTDP-43 expression and suppression. Animals evaluated at the early time point (0.5 month) post-induction do not display a motor phenotype, in agreement with the results obtained after 1 month of TG expression. Moreover, all motor tests (open field, accelerated rotarod, limb clasping, hanging wire grip) showed identical responses in both control and bigenic animals in the suppressed group, demonstrating that this protocol and treatment do not cause non-specific effects in motor behavior, which could potentially mask the phenotypes in other domains. Our results show that TDP-43-WT mice have a phenotype that qualifies them as a useful model of FTD and provide valuable information for susceptibility windows in therapeutic strategies for TDP-43 proteinopathies.
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Affiliation(s)
- Pablo R Silva
- IFIBIO Bernardo Houssay, Grupo de Neurociencia de Sistemas, Facultad de Medicina, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina
| | - Gabriela V Nieva
- IFIBIO Bernardo Houssay, Grupo de Neurociencia de Sistemas, Facultad de Medicina, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina
| | - Lionel M Igaz
- IFIBIO Bernardo Houssay, Grupo de Neurociencia de Sistemas, Facultad de Medicina, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina
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14
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Alrafiah AR. From Mouse Models to Human Disease: An Approach for Amyotrophic Lateral Sclerosis. In Vivo 2018; 32:983-998. [PMID: 30150420 DOI: 10.21873/invivo.11339] [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] [Received: 04/14/2018] [Revised: 05/22/2018] [Accepted: 05/31/2018] [Indexed: 02/06/2023]
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal adult-onset neurodegenerative disorder. There are several genetic mutations that lead to ALS development, such as chromosome 9 hexanucleotide repeat 72 (C9ORF72), transactive response DNA-binding protein (TARDBP), superoxide dismutase 1 (SOD1) and fused in sarcoma (FUS). ALS is associated with disrupted gene homeostasis causing aberrant RNA processing or toxic pathology. Several animal models of ALS disease have been developed to understand whether TARDBP-mediated neurodegeneration results from a gain or a loss of function of the protein, however, none exactly mimic the pathophysiology and the phenotype of human ALS. Here, the pathophysiology of specific ALS-linked gene mutations is discussed. Furthermore, some of the generated mouse models, as well as the similarities and differences between these models, are comprehensively reviewed. Further refinement of mouse models will likely aid the development of a better form of model that mimics human ALS. However, disrupted gene homeostasis that causes mutation can result in an ALS-like syndrome, increasing concerns about whether neurodegeneration and other effects in these models are due to the mutation or to gene overexpression. Research on the pleiotropic role of different proteins present in motor neurons is also summarized. The development of better mouse models that closely mimic human ALS will help identify potential therapeutic targets for this disease.
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Affiliation(s)
- Aziza Rashed Alrafiah
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences and Neuroscience Research Unit, King Abdulaziz University, Jeddah, Saudi Arabia
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15
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Abraham D, Feher J, Scuderi GL, Szabo D, Dobolyi A, Cservenak M, Juhasz J, Ligeti B, Pongor S, Gomez-Cabrera MC, Vina J, Higuchi M, Suzuki K, Boldogh I, Radak Z. Exercise and probiotics attenuate the development of Alzheimer's disease in transgenic mice: Role of microbiome. Exp Gerontol 2018; 115:122-131. [PMID: 30529024 DOI: 10.1016/j.exger.2018.12.005] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 12/01/2018] [Accepted: 12/04/2018] [Indexed: 02/06/2023]
Abstract
It has been suggested that exercise training and probiotic supplementation could decelerate the progress of functional and biochemical deterioration in APP/PS1 transgenic mice (APP/PS1TG). APP/PS1TG mice were subjected to exercise training and probiotic treatments and functional, biochemical and microbiome markers were analyzed. Under these conditions the mice significantly outperformed controls on The Morris Maze Test, and the number of beta-amyloid plaques decreased in the hippocampus. B. thetaiotaomicron levels correlated highly with the results of the Morris Maze Test (p < 0.05), and this group of bacteria was significantly elevated in the microbiome of the APP/PS1TG mice compared to the wild type. L. johnsonii levels positively correlated with the beta amyloid content and area. Data revealed that exercise and probiotic treatment can decrease the progress of Alzheimer's Disease and the beneficial effects could be partly mediated by alteration of the microbiome.
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Affiliation(s)
- Dora Abraham
- Research Institute of Sport Science, University of Physical Education, Budapest, Hungary
| | - Janos Feher
- Ophthalmology Unit, NESMOS Department, Sant'Andrea Hospital, Faculty of Medicine and Psychology, "Sapienza" University of Rome, Italy
| | - Gian Luca Scuderi
- Ophthalmology Unit, NESMOS Department, Sant'Andrea Hospital, Faculty of Medicine and Psychology, "Sapienza" University of Rome, Italy
| | - Dora Szabo
- Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary
| | - Arpad Dobolyi
- MTA-ELTE Laboratory of Molecular and Systems Neurobiology, Department of Physiology and Neurobiology, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Melinda Cservenak
- MTA-ELTE Laboratory of Molecular and Systems Neurobiology, Department of Physiology and Neurobiology, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Janos Juhasz
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Budapest, Hungary
| | - Balazs Ligeti
- Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary; Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Budapest, Hungary
| | - Sandor Pongor
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Budapest, Hungary
| | | | - Jose Vina
- Department of Physiology, Faculty of Medicine, University of Valencia, Spain
| | - Mitsuru Higuchi
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Katsuhiro Suzuki
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Istvan Boldogh
- Department of Microbiology and Immunology, University of Texas Medical Branch at Galveston, Galveston, USA
| | - Zsolt Radak
- Research Institute of Sport Science, University of Physical Education, Budapest, Hungary; Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan.
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16
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Jawaid A, Khan R, Polymenidou M, Schulz PE. Disease-modifying effects of metabolic perturbations in ALS/FTLD. Mol Neurodegener 2018; 13:63. [PMID: 30509290 PMCID: PMC6278047 DOI: 10.1186/s13024-018-0294-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/13/2018] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD) are two fatal neurodegenerative disorders with considerable clinical, pathological and genetic overlap. Both disorders are characterized by the accumulation of pathological protein aggregates that contain a number of proteins, most notably TAR DNA binding protein 43 kDa (TDP-43). Surprisingly, recent clinical studies suggest that dyslipidemia, high body mass index, and type 2 diabetes mellitus are associated with better clinical outcomes in ALS. Moreover, ALS and FTLD patients have a significantly lower incidence of cardiovascular disease, supporting the idea that an unfavorable metabolic profile may be beneficial in ALS and FTLD. The two most widely studied ALS/FTLD models, super-oxide dismutase 1 (SOD1) and TAR DNA binding protein of 43 kDA (TDP-43), reveal metabolic dysfunction and a positive effect of metabolic strategies on disease onset and/or progression. In addition, molecular studies reveal a role for ALS/FTLD-associated proteins in the regulation of cellular and whole-body metabolism. Here, we systematically evaluate these observations and discuss how changes in cellular glucose/lipid metabolism may result in abnormal protein aggregations in ALS and FTLD, which may have important implications for new treatment strategies for ALS/FTLD and possibly other neurodegenerative conditions.
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Affiliation(s)
- Ali Jawaid
- Laboratory of Neuroepigenetics, Brain Research Institute, University of Zurich (UZH)/ Swiss Federal Institute of Technology (ETH), Winterthurerstr. 190, 8057, Zurich, Switzerland. .,Syed Babar Ali School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore, Pakistan.
| | - Romesa Khan
- Syed Babar Ali School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore, Pakistan
| | | | - Paul E Schulz
- Department of Neurology, The McGovern Medical School of UT Health, Houston, TX, USA
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17
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Chauhan A, Al Mamun A, Spiegel G, Harris N, Zhu L, McCullough LD. Splenectomy protects aged mice from injury after experimental stroke. Neurobiol Aging 2018; 61:102-111. [PMID: 29059593 PMCID: PMC5947993 DOI: 10.1016/j.neurobiolaging.2017.09.022] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 09/05/2017] [Accepted: 09/20/2017] [Indexed: 12/21/2022]
Abstract
Elderly stroke patients and aged animals subjected to experimental stroke have significantly worse functional recovery and higher mortality compared to younger subjects. Activation of the peripheral immune system is known to influence stroke outcome. Prior studies have shown that splenectomy reduces ischemic brain injury in young mice. As immune function changes with aging, it is unclear whether splenectomy will confer similar benefits in aged animals. We investigated the contribution of spleen to brain injury after cerebral ischemia in aged male mice. Splenic architecture and immune cell composition were altered in aged mice. Splenectomy 2 weeks before stroke resulted in improved neurobehavioral and infarct outcomes in aged male mice. In addition, there was a reduction in peripheral immune cell infiltration into the brain and decreased levels of peripheral inflammatory cytokines after stroke in aged splenectomized mice. Splenectomy immediately after reperfusion also improved behavioral and infarct outcomes. This study suggests that inhibition of the splenic immune response is a translationally relevant target to pursue for stroke treatment in aged individuals.
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Affiliation(s)
- Anjali Chauhan
- Department of Neurology, the University of Texas McGovern Medical School at Houston, TX, USA
| | - Abdullah Al Mamun
- Department of Neurology, the University of Texas McGovern Medical School at Houston, TX, USA
| | - Gabriel Spiegel
- Department of Neurology, the University of Texas McGovern Medical School at Houston, TX, USA
| | - Nia Harris
- University of Connecticut Health Science Center, Farmington, Connecticut, USA
| | - Liang Zhu
- Biostatistics & Epidemiology Research Design Core, Center for Clinical and Translational Sciences, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Louise D McCullough
- Department of Neurology, the University of Texas McGovern Medical School at Houston, TX, USA; Memorial Hermann Hospital-Texas Medical Center, Houston, TX, USA.
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18
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Alzheimer’s Disease and Frontotemporal Lobar Degeneration: Mouse Models. NEURODEGENER DIS 2018. [DOI: 10.1007/978-3-319-72938-1_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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19
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Perry CJ, Lawrence AJ. Hurdles in Basic Science Translation. Front Pharmacol 2017; 8:478. [PMID: 28769807 PMCID: PMC5513913 DOI: 10.3389/fphar.2017.00478] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/03/2017] [Indexed: 11/13/2022] Open
Abstract
In the past century there have been incredible advances in the field of medical research, but what hinders translation of this knowledge into effective treatment for human disease? There is an increasing focus on the failure of many research breakthroughs to be translated through the clinical trial process and into medical practice. In this mini review, we will consider some of the reasons that findings in basic medical research fail to become translated through clinical trials and into basic medical practices. We focus in particular on the way that human disease is modeled, the understanding we have of how our targets behave in vivo, and also some of the issues surrounding reproducibility of basic research findings. We will also look at some of the ways that have been proposed for overcoming these issues. It appears that there needs to be a cultural shift in the way we fund, publish and recognize quality control in scientific research. Although this is a daunting proposition, we hope that with increasing awareness and focus on research translation and the hurdles that impede it, the field of medical research will continue to inform and improve medical practice across the world.
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Affiliation(s)
- Christina J Perry
- Behavioural Neuroscience Division, The Florey Institute of Neuroscience and Mental Health, ParkvilleVIC, Australia.,Florey Department of Neuroscience and Mental Health, University of Melbourne, MelbourneVIC, Australia
| | - Andrew J Lawrence
- Behavioural Neuroscience Division, The Florey Institute of Neuroscience and Mental Health, ParkvilleVIC, Australia.,Florey Department of Neuroscience and Mental Health, University of Melbourne, MelbourneVIC, Australia
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