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Ganesan S, Dharmarajan A, Sudhir G, Perumalsamy LR. Unravelling the Road to Recovery: Mechanisms of Wnt Signalling in Spinal Cord Injury. Mol Neurobiol 2024:10.1007/s12035-024-04055-1. [PMID: 38421469 DOI: 10.1007/s12035-024-04055-1] [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: 10/07/2023] [Accepted: 02/12/2024] [Indexed: 03/02/2024]
Abstract
Spinal cord injury (SCI) is a complex neurodegenerative pathology that consistently harbours a poor prognostic outcome. At present, there are few therapeutic strategies that can halt neuronal cell death and facilitate functional motor recovery. However, recent studies have highlighted the Wnt pathway as a key promoter of axon regeneration following central nervous system (CNS) injuries. Emerging evidence also suggests that the temporal dysregulation of Wnt may drive cell death post-SCI. A major challenge in SCI treatment resides in developing therapeutics that can effectively target inflammation and facilitate glial scar repair. Before Wnt signalling is exploited for SCI therapy, further research is needed to clarify the implications of Wnt on neuroinflammation during chronic stages of injury. In this review, an attempt is made to dissect the impact of canonical and non-canonical Wnt pathways in relation to individual aspects of glial and fibrotic scar formation. Furthermore, it is also highlighted how modulating Wnt activity at chronic time points may aid in limiting lesion expansion and promoting axonal repair.
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Affiliation(s)
- Suchita Ganesan
- Department of Biomedical Sciences, Sri Ramachandra Faculty of Biomedical Sciences and Technology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Arun Dharmarajan
- Department of Biomedical Sciences, Sri Ramachandra Faculty of Biomedical Sciences and Technology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
- Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA, 6102, Australia
- Curtin Medical School, Curtin University, Perth, WA, Australia
- School of Human Sciences, The University of Western Australia, Nedlands, WA, Australia
- Sri Ramachandra Faculty of Clinical Research, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - G Sudhir
- Department of Orthopedics and Spine Surgery, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra Institute of Higher Education and Research, Chennai, India.
| | - Lakshmi R Perumalsamy
- Department of Biomedical Sciences, Sri Ramachandra Faculty of Biomedical Sciences and Technology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India.
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Keshavarzi M, Moradbeygi F, Mobini K, Ghaffarian Bahraman A, Mohammadi P, Ghaedi A, Mohammadi-Bardbori A. The interplay of aryl hydrocarbon receptor/WNT/CTNNB1/Notch signaling pathways regulate amyloid beta precursor mRNA/protein expression and effected the learning and memory of mice. Toxicol Res (Camb) 2021; 11:147-161. [PMID: 35237419 PMCID: PMC8882790 DOI: 10.1093/toxres/tfab120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/22/2021] [Accepted: 12/01/2021] [Indexed: 12/31/2022] Open
Abstract
The amyloid beta precursor protein (APP) plays a pathophysiological role in the development of Alzheimer's disease as well as a physiological role in neuronal growth and synaptogenesis. The aryl hydrocarbon receptor (AhR)/WNT/Catenin Beta 1 (CTNNB1)/Notch signaling pathways stamp in many functions, including development and growth of neurons. However, the regulatory role of AhR-/WNT-/CTNNB1-/Notch-induced APP expression and its influence on hippocampal-dependent learning and memory deficits is not clear. Male BALB/C mice received 6-formylindolo[3,2-b]carbazole (an AhR agonist), CH223191(an AhR antagonist), DAPT (an inhibitor of Notch signaling), and XAV-939 (a WNT pathway inhibitor) at a single dose of 100 μg/kg, 1, 5 , and 5 mg/kg of body weight, respectively, via intraperitoneal injection alone or in combination. Gene expression analyses and protein assay were performed on the 7th and 29th days. To assess the hippocampal-dependent memory, all six mice also underwent contextual fear conditioning on the 28th day after treatments. Our results showed that endogenous ligand of AhR has a regulatory effect on APP gene. Also, the interaction of AhR/WNT/CTNNB1 has a positive regulatory effect, but Notch has a negative regulatory effect on the mRNA and protein expression of APP, which have a correlation with mice's learning skills and memory.
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Affiliation(s)
- Majid Keshavarzi
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 7146864685, Iran,Department of Environmental Health, Faculty of Health, Sabzevar University of Medical Sciences, Sabzevar 7146864685, Iran
| | - Fatemeh Moradbeygi
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 7146864685, Iran
| | - Keivan Mobini
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 7146864685, Iran
| | - Ali Ghaffarian Bahraman
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 7146864685, Iran,Occupational Environment Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Parisa Mohammadi
- Department of Environmental Health, Faculty of Health, Sabzevar University of Medical Sciences, Sabzevar 7146864685, Iran
| | - Afsaneh Ghaedi
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 7146864685, Iran
| | - Afshin Mohammadi-Bardbori
- Correspondence address. Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 7146864685, Iran. Tel.: +98(71)32425374; Fax: +98(71)32424326; E-mail:
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Narvaes RF, Furini CRG. Role of Wnt signaling in synaptic plasticity and memory. Neurobiol Learn Mem 2021; 187:107558. [PMID: 34808336 DOI: 10.1016/j.nlm.2021.107558] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 10/15/2021] [Accepted: 11/15/2021] [Indexed: 12/24/2022]
Abstract
Ever since their discoveries, the Wnt pathways have been consistently associated with key features of cellular development, including metabolism, structure and cell fate. The three known pathways (the canonical Wnt/β-catenin and the two non-canonical Wnt/Ca++ and Wnt/JNK/PCP pathways) participate in complex networks of interaction with a wide range of regulators of cell function, such as GSK-3β, AKT, PKC and mTOR, among others. These proteins are known to be involved in the formation and maintenance of memory. Currently, studies with Wnt and memory have shown that the canonical and non-canonical pathways play key roles in different processes associated with memory. So, in this review we briefly summarize the different roles that Wnt signaling can play in neurons and in memory, as well as in Alzheimer's disease, focusing towards animal studies. We start with the molecular characterization of the family and its receptors, as well as the most commonly used drugs for pharmacological manipulations. Next, we describe its role in synaptic plasticity and memory, and how the regulations of these pathways affect crucial features of neuronal function. Furthermore, we succinctly present the current knowledge on how the Wnt pathways are implicated in Alzheimer's disease, and how studies are seeing them as a potential candidate for effective treatments. Lastly, we point toward challenges of Wnt research, and how knowledge on these pathways can lead towards a better understanding of neurobiological and pathological processes.
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Affiliation(s)
- Rodrigo F Narvaes
- Laboratory of Cognition and Memory Neurobiology, Brain Institute, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - 3rd floor, 90610-000 Porto Alegre, RS, Brazil.
| | - Cristiane R G Furini
- Laboratory of Cognition and Memory Neurobiology, Brain Institute, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - 3rd floor, 90610-000 Porto Alegre, RS, Brazil.
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Zhou Q, Qin J, Liang Y, Zhang W, He S, Tissir F, Qu Y, Zhou L. Celsr3 is required for Purkinje cell maturation and regulates cerebellar postsynaptic plasticity. iScience 2021; 24:102812. [PMID: 34308297 PMCID: PMC8283331 DOI: 10.1016/j.isci.2021.102812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/21/2021] [Accepted: 06/29/2021] [Indexed: 12/17/2022] Open
Abstract
Atypical cadherin Celsr3 is critical for brain embryonic development, and its role in the postnatal cerebellum remains unknown. Using Celsr3-GFP mice, Celsr3 shows high expression in postnatal Purkinje cells (PCs). Mice with conditional knockout (cKO) of Celsr3 in postnatal PCs exhibit deficit in motor coordination and learning, atrophic PC dendrites, and decreased synapses. Whole-PC recording in cerebellar slices discloses a reduction frequency of mEPSC and defective postsynaptic plasticity (LTP and LTD) in Celsr3 cKO mutants. Wnt5a perfusion enhances LTP formation, which could be occluded by cAMP agonist and diminished by cAMP antagonist in control, but not in Celsr3 cKO or Fzd3 cKO cerebellar slices. Celsr3 cKO resulted in the failure of mGluR1 agonist-induced LTD and paired stimulation-induced PKCα overexpression in PC dendrites, and downregulation of mGluR1 expression compvared to controls. In conclusion, Celsr3 is required for PCs maturation and regulates postsynaptic LTP and LTD through Wnt5a/cAMP and mGluR1/PKCα signaling respectively. Celsr3 cKO in postnatal PCs impairs mouse motor coordination and learning Celsr3 inactivation affects the maturation of PC dendrites and synapses Celsr3 is required for the cerebellar LTP induction via the Wnt5a/cAMP signaling Celsr3 regulates the cerebellar LTD induction through the mGluR1/PKCα pathway
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Affiliation(s)
- Qinji Zhou
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou 510632, P.R. China
| | - Jingwen Qin
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou 510632, P.R. China
| | - Yaying Liang
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou 510632, P.R. China
| | - Wei Zhang
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou 510632, P.R. China
| | - Siyuan He
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou 510632, P.R. China
| | - Fadel Tissir
- Université catholique de Louvain, Institute of Neuroscience, Developmental Neurobiology, Brussels, Belgium.,College of Life and Health Sciences, Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | - Yibo Qu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou 510632, P.R. China
| | - Libing Zhou
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou 510632, P.R. China.,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, P.R. China.,The First Affiliated Hospital of Jian University, Guangzhou 510632, P. R. China.,Co-innovation Center of Neuroregeneration, Nantong University, Jiangsu, P. R. China
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Lourdes A. Vega Rasgado, Urbieta AT, Medina Jiménez JM. Influence of Mitochondrial ATP-Sensitive Potassium Channels on Toxic Effect of Amyloid-β 25–35. NEUROCHEM J+ 2020. [DOI: 10.1134/s181971242001016x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Oliva CA, Montecinos-Oliva C, Inestrosa NC. Wnt Signaling in the Central Nervous System: New Insights in Health and Disease. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 153:81-130. [PMID: 29389523 DOI: 10.1016/bs.pmbts.2017.11.018] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Since its discovery, Wnt signaling has been shown to be one of the most crucial morphogens in development and during the maturation of central nervous system. Its action is relevant during the establishment and maintenance of synaptic structure and neuronal function. In this chapter, we will discuss the most recent evidence on these aspects, and we will explore the evidence that involves Wnt signaling on other less known functions, such as in adult neurogenesis, in the generation of oscillatory neural rhythms, and in adult behavior. The dysfunction of Wnt signaling at different levels will be also discussed, in particular in those aspects that have been found to be linked with several neurodegenerative diseases and neurological disorders. Finally, we will address the possibility of Wnt signaling manipulation to treat those pathophysiological aspects.
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Affiliation(s)
- Carolina A Oliva
- Center for Aging and Regeneration (CARE-UC), Pontifical Catholic University of Chile, Santiago, Chile
| | - Carla Montecinos-Oliva
- Center for Aging and Regeneration (CARE-UC), Pontifical Catholic University of Chile, Santiago, Chile; Interdisciplinary Institute for Neuroscience (IINS), University of Bordeaux, Bordeaux, France
| | - Nibaldo C Inestrosa
- Center for Aging and Regeneration (CARE-UC), Pontifical Catholic University of Chile, Santiago, Chile; Center for Healthy Brain Ageing, University of New South Wales, Sydney, NSW, Australia; Center of Excellence in Biomedicine of Magallanes (CEBIMA), University of Magallanes, Punta Arenas, Chile.
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Erythropoietin ameliorates diabetes-associated cognitive dysfunction in vitro and in vivo. Sci Rep 2017; 7:2801. [PMID: 28584284 PMCID: PMC5459814 DOI: 10.1038/s41598-017-03137-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/20/2017] [Indexed: 01/15/2023] Open
Abstract
Several studies indicate that erythropoietin (EPO) has remarkable neuroprotective effects in various central nervous system disorders, while little is known about the effects of EPO in diabetes-associated cognitive dysfunction. Therefore, the present study aimed to investigate whether EPO ameliorates diabetes-associated cognitive dysfunction in vivo and in vitro. We investigated the protective effects of EPO on high-glucose (HG)-induced PC12 cell death and oxidative stress. The effects of EPO (300 U/kg administered three times a week for 4 weeks) on diabetes-associated cognitive decline were investigated in diabetic rats. EPO significantly increased cell viability, increased the activity of superoxide dismutase, decreased the production of malondialdehyde and reactive oxygen species, and decreased the apoptosis rate. Additionally, LY294002, a phosphatidylinositol 3-kinase (PI3K) inhibitor, abolished the protective effects of EPO in HG-treated PC12 cells. In diabetic rats, EPO prevented deficits in spatial learning and memory in the Morris water maze test. The results of real-time PCR and Western blotting showed that EPO upregulated EPO receptor, PI3K, and phosphorylated Akt2 relative to unphosphorylated Akt2 (p-Akt2/Akt2) and downregulated glycogen synthase kinase-3β (GSK-3β). These studies demonstrate that EPO is an effective neuroprotective agent in the context of diabetes-associated cognitive dysfunction and show that this effect involves the PI3K/Akt/GSK-3β pathway.
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Song X, Zhou B, Cui L, Lei D, Zhang P, Yao G, Xia M, Hayashi T, Hattori S, Ushiki-Kaku Y, Tashiro SI, Onodera S, Ikejima T. Silibinin ameliorates Aβ 25-35-induced memory deficits in rats by modulating autophagy and attenuating neuroinflammation as well as oxidative stress. Neurochem Res 2016; 42:1073-1083. [PMID: 28004303 DOI: 10.1007/s11064-016-2141-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 11/05/2016] [Accepted: 12/08/2016] [Indexed: 01/07/2023]
Abstract
Alzheimer's disease (AD) is a progressive, neurodegenerative disease. Accumulating evidence suggests that inflammatory response, oxidative stress and autophagy are involved in amyloid β (Aβ)-induced memory deficits. Silibinin (silybin), a flavonoid derived from the herb milk thistle, is well known for its hepatoprotective activities. In this study, we investigated the neuroprotective effect of silibinin on Aβ25-35-injected rats. Results demonstrated that silibinin significantly attenuated Aβ25-35-induced memory deficits in Morris water maze and novel object-recognition tests. Silibinin exerted anxiolytic effect in Aβ25-35-injected rats as determined in elevated plus maze test. Silibinin attenuated the inflammatory responses, increased glutathione (GSH) levels and decreased malondialdehyde (MDA) levels, and upregulated autophagy levels in the Aβ25-35-injected rats. In conclusion, silibinin is a potential candidate for AD treatment because of its anti-inflammatory, antioxidant and autophagy regulating activities.
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Affiliation(s)
- Xiaoyu Song
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Biao Zhou
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Lingyu Cui
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Di Lei
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Pingping Zhang
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Guodong Yao
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Mingyu Xia
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Toshihiko Hayashi
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Shunji Hattori
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, 302-0017, Japan
| | - Yuko Ushiki-Kaku
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, 302-0017, Japan
| | - Shin-Ichi Tashiro
- Department of Medical Education & Primary Care, Kyoto Prefectural University of Medicine, Kajiicho 465, Kamikyo-ku, Kyoto City, Kyoto, 602-8566, Japan
| | - Satoshi Onodera
- Department of Clinical and Biomedical Sciences, Showa Pharmaceutical University, Tokyo, 194-8543, Japan
| | - Takashi Ikejima
- China-Japan Research Institute of Medical and Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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sFRP-mediated Wnt sequestration as a potential therapeutic target for Alzheimer’s disease. Int J Biochem Cell Biol 2016; 75:104-11. [DOI: 10.1016/j.biocel.2016.04.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 04/06/2016] [Accepted: 04/06/2016] [Indexed: 01/28/2023]
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