1
|
Du Y, Feng Z, Gao M, Wang A, Yan X, Chen R, Liu B, Yu F, Ba Y, Zhou G. Impaired neurogenesis induced by fluoride via the Notch1 signaling and effects of carvacrol intervention. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 356:124371. [PMID: 38880328 DOI: 10.1016/j.envpol.2024.124371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/26/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
The negative regulation on neurogenesis has been implicated in fluoride neurotoxicity, while the evidence is limited. To explore whether fluoride interferes with neurogenesis via the Notch1 signaling and the potential alleviation effects of carvacrol (CAR), we conducted in vivo and in vitro experiments, as well as epidemiological analyses in this study. The results showed that urinary fluoride levels and circulating Notch1 levels were associated with IQ levels in boys. NaF-treated rats had fewer neurons, lower densities of dendritic spines, depressed neurogenesis, and impaired learning and memory abilities. In vitro experiments using undifferentiated PC12 cells mimicking neurogenesis revealed that NaF suppressed differentiation and neurite outgrowth. Besides, Notch1 signaling activation was detected in vivo and in vitro. The latter was confirmed using an in vitro model supplemented with DAPT, a potent Notch1 inhibitor. Furthermore, CAR supplementation negatively regulated NICD1 and Hes1 expressions and promoted hippocampal neurogenesis, thereby improving neurological functions in NaF-treated rats. These findings indicated that the inhibition of neurogenesis in hippocampi induced by fluoride via Notch1 signaling activation may be one of the underlying mechanisms of its neurotoxicity, and that CAR significantly alleviated the neurotoxicity of NaF via the Notch1 signaling.
Collapse
Affiliation(s)
- Yuhui Du
- Department of Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Zichen Feng
- Department of Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Minghui Gao
- The First Affiliated Hospital of Henan University, Henan University, Kaifeng, Henan, 475000, China
| | - Anqi Wang
- Henan Provincial Center for Disease Control and Prevention, Zhengzhou, Henan, 450000, China
| | - Xi Yan
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, 450003, China
| | - Ruiqin Chen
- Jinshui District Center for Disease Control and Prevention, Zhengzhou, Henan, 450000, China
| | - Bin Liu
- Department of Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Fangfang Yu
- Department of Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Yue Ba
- Department of Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Guoyu Zhou
- Department of Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, China.
| |
Collapse
|
2
|
K. C. R, Tiemroth AS, Thurmon AN, Meadows SM, Galazo MJ. Zmiz1 is a novel regulator of brain development associated with autism and intellectual disability. Front Psychiatry 2024; 15:1375492. [PMID: 38686122 PMCID: PMC11057416 DOI: 10.3389/fpsyt.2024.1375492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/26/2024] [Indexed: 05/02/2024] Open
Abstract
Neurodevelopmental disorders (NDDs) are a class of pathologies arising from perturbations in brain circuit formation and maturation with complex etiological triggers often classified as environmental and genetic. Neuropsychiatric conditions such as autism spectrum disorders (ASD), intellectual disability (ID), and attention deficit hyperactivity disorders (ADHD) are common NDDs characterized by their hereditary underpinnings and inherent heterogeneity. Genetic risk factors for NDDs are increasingly being identified in non-coding regions and proteins bound to them, including transcriptional regulators and chromatin remodelers. Importantly, de novo mutations are emerging as important contributors to NDDs and neuropsychiatric disorders. Recently, de novo mutations in transcriptional co-factor Zmiz1 or its regulatory regions have been identified in unrelated patients with syndromic ID and ASD. However, the role of Zmiz1 in brain development is unknown. Here, using publicly available databases and a Zmiz1 mutant mouse model, we reveal that Zmiz1 is highly expressed during embryonic brain development in mice and humans, and though broadly expressed across the brain, Zmiz1 is enriched in areas prominently impacted in ID and ASD such as cortex, hippocampus, and cerebellum. We investigated the relationship between Zmiz1 structure and pathogenicity of protein variants, the epigenetic marks associated with Zmiz1 regulation, and protein interactions and signaling pathways regulated by Zmiz1. Our analysis reveals that Zmiz1 regulates multiple developmental processes, including neurogenesis, neuron connectivity, and synaptic signaling. This work paves the way for future studies on the functions of Zmiz1 and highlights the importance of combining analysis of mouse models and human data.
Collapse
Affiliation(s)
- Rajan K. C.
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA, United States
| | - Alina S. Tiemroth
- Tulane Brain Institute, Tulane University, New Orleans, LA, United States
| | - Abbigail N. Thurmon
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA, United States
| | - Stryder M. Meadows
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA, United States
- Tulane Brain Institute, Tulane University, New Orleans, LA, United States
| | - Maria J. Galazo
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA, United States
- Tulane Brain Institute, Tulane University, New Orleans, LA, United States
| |
Collapse
|
3
|
Chen Y, Pang J, Ye L, Zhang Z, Lin S, Lin N, Lee TH, Liu H. Disorders of the central nervous system: Insights from Notch and Nrf2 signaling. Biomed Pharmacother 2023; 166:115383. [PMID: 37643483 DOI: 10.1016/j.biopha.2023.115383] [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: 05/29/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 08/31/2023] Open
Abstract
The functional complexity of the central nervous system (CNS) is unparalleled in living organisms. It arises from neural crest-derived cells that migrate by the exact route, leading to the formation of a complex network of neurons and glial cells. Recent studies have shown that novel crosstalk exists between the Notch1 and Nrf2 pathways and is associated with many neurological diseases. The Notch1-Nrf2 axis may act on nervous system development, and the molecular mechanism has recently been reported. In this review, we summarize the essential structure and function of the CNS. The significance of interactions between signaling pathways and between developmental processes like proliferation, apoptosis and migration in ensuring the correct development of the CNS is also presented. We primarily focus on research concerning possible mechanism of interaction between Notch1 and Nrf2 and the functions of Notch1-Nrf2 in neurons. There may be a direct interaction between Notch1 and NRF2, which is closely related to the crosstalk that occurs between them. The significance and potential applications of the Notch1-Nrf2 axis in abnormal development of the nervous system are been highlighten. We also discuss the molecular mechanisms by which the Notch1-Nrf2 axis controls the apoptosis, antioxidant pathway and differentiation of neurons to modulate the development of the nervous system. This information will lead to a better understanding of Notch1-Nrf2 axis signaling pathways in the nervous system and may facilitate the development of new therapeutic strategies.
Collapse
Affiliation(s)
- Yuwen Chen
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Jiao Pang
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Lu Ye
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Zhentao Zhang
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Suijin Lin
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Na Lin
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Tae Ho Lee
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Hekun Liu
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China.
| |
Collapse
|
4
|
Temporal control of neuronal wiring. Semin Cell Dev Biol 2023; 142:81-90. [PMID: 35644877 DOI: 10.1016/j.semcdb.2022.05.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 12/22/2022]
Abstract
Wiring an animal brain is a complex process involving a staggering number of cell-types born at different times and locations in the developing brain. Incorporation of these cells into precise circuits with high fidelity is critical for animal survival and behavior. Assembly of neuronal circuits is heavily dependent upon proper timing of wiring programs, requiring neurons to express specific sets of genes (sometimes transiently) at the right time in development. While cell-type specificity of genetic programs regulating wiring has been studied in detail, mechanisms regulating proper timing and coordination of these programs across cell-types are only just beginning to emerge. In this review, we discuss some temporal regulators of wiring programs and how their activity is controlled over time and space. A common feature emerges from these temporal regulators - they are induced by cell-extrinsic cues and control transcription factors capable of regulating a highly cell-type specific set of target genes. Target specificity in these contexts comes from cell-type specific transcription factors. We propose that the spatiotemporal specificity of wiring programs is controlled by the combinatorial activity of temporal programs and cell-type specific transcription factors. Going forward, a better understanding of temporal regulators will be key to understanding the mechanisms underlying brain wiring, and will be critical for the development of in vitro models like brain organoids.
Collapse
|
5
|
Modulation of Notch Signaling at Early Stages of Differentiation of Human Induced Pluripotent Stem Cells to Dopaminergic Neurons. Int J Mol Sci 2023; 24:ijms24021429. [PMID: 36674941 PMCID: PMC9867149 DOI: 10.3390/ijms24021429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/07/2023] [Accepted: 01/08/2023] [Indexed: 01/13/2023] Open
Abstract
Elaboration of protocols for differentiation of human pluripotent stem cells to dopamine neurons is an important issue for development of cell replacement therapy for Parkinson's disease. A number of protocols have been already developed; however, their efficiency and specificity still can be improved. Investigating the role of signaling cascades, important for neurogenesis, can help to solve this problem and to provide a deeper understanding of their role in neuronal development. Notch signaling plays an essential role in development and maintenance of the central nervous system after birth. In our study, we analyzed the effect of Notch activation and inhibition at the early stages of differentiation of human induced pluripotent stem cells to dopaminergic neurons. We found that, during the first seven days of differentiation, the cells were not sensitive to the Notch inhibition. On the contrary, activation of Notch signaling during the same time period led to significant changes and was associated with an increase in expression of genes, specific for caudal parts of the brain, a decrease of expression of genes, specific for forebrain, as well as a decrease of expression of genes, important for the formation of axons and dendrites and microtubule stabilizing proteins.
Collapse
|
6
|
Erkhembaatar M, Yamamoto I, Inoguchi F, Taki K, Yamagishi S, Delaney L, Nishibe M, Abe T, Kiyonari H, Hanashima C, Naka‐kaneda H, Ihara D, Katsuyama Y. Involvement of Strawberry Notch homologue 1 in neurite outgrowth of cortical neurons. Dev Growth Differ 2022; 64:379-394. [DOI: 10.1111/dgd.12802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/15/2022] [Accepted: 06/15/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Munkhsoyol Erkhembaatar
- Division of Neuroanatomy, Department of Anatomy Shiga University of Medical Science Shiga Japan
| | - Iroha Yamamoto
- Division of Neuroanatomy, Department of Anatomy Shiga University of Medical Science Shiga Japan
| | - Fuduki Inoguchi
- Division of Neuroanatomy, Department of Anatomy Shiga University of Medical Science Shiga Japan
| | - Kosuke Taki
- Division of Neuroanatomy, Department of Anatomy Shiga University of Medical Science Shiga Japan
| | - Satoru Yamagishi
- Department of Anatomy & Neuroscience Hamamatsu University School of Medicine, Hamamatsu Shizuoka Japan
- Preeminent Medical Photonics Education & Research Center Hamamatsu University School of Medicine, Hamamatsu Shizuoka Japan
| | - Leanne Delaney
- Division of Neuroanatomy, Department of Anatomy Shiga University of Medical Science Shiga Japan
- Department of Microbiology and Immunology Dalhousie University, PO Box 15000 Halifax Nova Scotia Canada
| | - Mariko Nishibe
- Division of Neuroanatomy, Department of Anatomy Shiga University of Medical Science Shiga Japan
| | - Takaya Abe
- Animal Resource Development Unit, Biosystem Dynamics Group, Division of Bio‐Function Dynamics Imaging Center for Life Science Technologies CDB RIKEN Kobe Japan
| | - Hiroshi Kiyonari
- Animal Resource Development Unit, Biosystem Dynamics Group, Division of Bio‐Function Dynamics Imaging Center for Life Science Technologies CDB RIKEN Kobe Japan
| | - Carina Hanashima
- Department of Biology, Faculty of Education and Integrated Arts and Sciences Waseda University Tokyo Japan
| | - Hayato Naka‐kaneda
- Division of Neuroanatomy, Department of Anatomy Shiga University of Medical Science Shiga Japan
| | - Dai Ihara
- Division of Neuroanatomy, Department of Anatomy Shiga University of Medical Science Shiga Japan
| | - Yu Katsuyama
- Division of Neuroanatomy, Department of Anatomy Shiga University of Medical Science Shiga Japan
| |
Collapse
|
7
|
Hsu CC, Serio A, Gopal S, Gelmi A, Chiappini C, Desai RA, Stevens MM. Biophysical Regulations of Epigenetic State and Notch Signaling in Neural Development Using Microgroove Substrates. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32773-32787. [PMID: 35830496 PMCID: PMC9335410 DOI: 10.1021/acsami.2c01996] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A number of studies have recently shown how surface topography can alter the behavior and differentiation patterns of different types of stem cells. Although the exact mechanisms and molecular pathways involved remain unclear, a consistent portion of the literature points to epigenetic changes induced by nuclear remodeling. In this study, we investigate the behavior of clinically relevant neural populations derived from human pluripotent stem cells when cultured on polydimethylsiloxane microgrooves (3 and 10 μm depth grooves) to investigate what mechanisms are responsible for their differentiation capacity and functional behavior. Our results show that microgrooves enhance cell alignment, modify nuclear geometry, and significantly increase cellular stiffness, which we were able to measure at high resolution with a combination of light and electron microscopy, scanning ion conductance microscopy (SICM), and atomic force microscopy (AFM) coupled with quantitative image analysis. The microgrooves promoted significant changes in the epigenetic landscape, as revealed by the expression of key histone modification markers. The main behavioral change of neural stem cells on microgrooves was an increase of neuronal differentiation under basal conditions on the microgrooves. Through measurements of cleaved Notch1 levels, we found that microgrooves downregulate Notch signaling. We in fact propose that microgroove topography affects the differentiation potential of neural stem cells by indirectly altering Notch signaling through geometric segregation and that this mechanism in parallel with topography-dependent epigenetic modulations acts in concert to enhance stem cell neuronal differentiation.
Collapse
Affiliation(s)
- Chia-Chen Hsu
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Department
of Bioengineering, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Institute
of Biomedical Engineering, Imperial College
London, Exhibition Road, London SW7 2AZ, U.K.
| | - Andrea Serio
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Department
of Bioengineering, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Institute
of Biomedical Engineering, Imperial College
London, Exhibition Road, London SW7 2AZ, U.K.
| | - Sahana Gopal
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Department
of Bioengineering, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Institute
of Biomedical Engineering, Imperial College
London, Exhibition Road, London SW7 2AZ, U.K.
| | - Amy Gelmi
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Department
of Bioengineering, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Institute
of Biomedical Engineering, Imperial College
London, Exhibition Road, London SW7 2AZ, U.K.
| | - Ciro Chiappini
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Department
of Bioengineering, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Institute
of Biomedical Engineering, Imperial College
London, Exhibition Road, London SW7 2AZ, U.K.
| | - Ravi A. Desai
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Department
of Bioengineering, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Institute
of Biomedical Engineering, Imperial College
London, Exhibition Road, London SW7 2AZ, U.K.
| | - Molly M. Stevens
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Department
of Bioengineering, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- Institute
of Biomedical Engineering, Imperial College
London, Exhibition Road, London SW7 2AZ, U.K.
| |
Collapse
|
8
|
Im DS, Joselin A, Svoboda D, Takano T, Rousseaux MWC, Callaghan S, Slack RS, Hisanaga SI, Davis RJ, Park DS, Qu D. Cdk5-mediated JIP1 phosphorylation regulates axonal outgrowth through Notch1 inhibition. BMC Biol 2022; 20:115. [PMID: 35581583 PMCID: PMC9115922 DOI: 10.1186/s12915-022-01312-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 04/26/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Activated Cdk5 regulates a number of processes during nervous system formation, including neuronal differentiation, growth cone stabilization, and axonal growth. Cdk5 phosphorylates its downstream substrates located in axonal growth cones, where the highly expressed c-Jun N-terminal kinase (JNK)-interacting protein1 (JIP1) has been implicated as another important regulator of axonal growth. In addition, stringent control of the level of intracellular domain of Notch1 (Notch1-IC) plays a regulatory role in axonal outgrowth during neuronal differentiation. However, whether Cdk5-JIP1-Notch1 cooperate to regulate axonal outgrowth, and the mechanism of such joint contribution to this pathway, is presently unknown, and here we explore their potential interaction. RESULTS Our interactome screen identified JIP1 as an interactor of p35, a Cdk5 activator, and we sought to explore the relationship between Cdk5 and JIP1 on the regulation of axonal outgrowth. We demonstrate that JIP1 phosphorylated by Cdk5 at Thr205 enhances axonal outgrowth and a phosphomimic JIP1 rescues the axonal outgrowth defects in JIP1-/- and p35-/- neurons. Axonal outgrowth defects caused by the specific increase of Notch1 in JIP1-/- neurons are rescued by Numb-mediated inhibition of Notch1. Finally, we demonstrate that Cdk5 phosphorylation of JIP1 further amplifies the phosphorylation status of yet another Cdk5 substrate E3-ubiquitin ligase Itch, resulting in increased Notch1 ubiquitination. CONCLUSIONS Our findings identify a potentially critical signaling axis involving Cdk5-JIP1-Itch-Notch1, which plays an important role in the regulation of CNS development. Future investigation into the way this pathway integrates with additional pathways regulating axonal growth will further our knowledge of normal central nervous system development and pathological conditions.
Collapse
Affiliation(s)
- Doo Soon Im
- Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Alvin Joselin
- Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Devon Svoboda
- Department of Cellular and Molecular Medicine, University of Ottawa Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Tesuya Takano
- Department of Biological Sciences, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
| | - Maxime W C Rousseaux
- Department of Cellular and Molecular Medicine, University of Ottawa Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Steve Callaghan
- Department of Cellular and Molecular Medicine, University of Ottawa Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Ruth S Slack
- Department of Cellular and Molecular Medicine, University of Ottawa Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Shin-Ichi Hisanaga
- Department of Biological Sciences, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
| | - Roger J Davis
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01650, USA
| | - David S Park
- Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada.
| | - Dianbo Qu
- Department of Cellular and Molecular Medicine, University of Ottawa Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, K1H 8M5, Canada.
| |
Collapse
|
9
|
Reduced chromatin accessibility correlates with resistance to Notch activation. Nat Commun 2022; 13:2210. [PMID: 35468895 PMCID: PMC9039071 DOI: 10.1038/s41467-022-29834-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 03/18/2022] [Indexed: 11/08/2022] Open
Abstract
The Notch signalling pathway is a master regulator of cell fate transitions in development and disease. In the brain, Notch promotes neural stem cell (NSC) proliferation, regulates neuronal migration and maturation and can act as an oncogene or tumour suppressor. How NOTCH and its transcription factor RBPJ activate distinct gene regulatory networks in closely related cell types in vivo remains to be determined. Here we use Targeted DamID (TaDa), requiring only thousands of cells, to identify NOTCH and RBPJ binding in NSCs and their progeny in the mouse embryonic cerebral cortex in vivo. We find that NOTCH and RBPJ associate with a broad network of NSC genes. Repression of NSC-specific Notch target genes in intermediate progenitors and neurons correlates with decreased chromatin accessibility, suggesting that chromatin compaction may contribute to restricting NOTCH-mediated transactivation.
Collapse
|
10
|
Kang X, Zhang ZP, Song CG, Liu L, Zhao Y, Du JL, Lai YB, Cao XL, Ye WM, Zhang YF, Zheng MH, Zeng YH, Sun XL, Wu SX, Gao F. γ-secretase inhibitor disturbs the morphological development of differentiating neurons through affecting Notch/miR-342-5p. Neurosci Lett 2022; 778:136603. [DOI: 10.1016/j.neulet.2022.136603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/21/2022] [Accepted: 03/26/2022] [Indexed: 10/18/2022]
|
11
|
Perna A, Marathe S, Dreos R, Falquet L, Akarsu Egger H, Auber LA. Revealing NOTCH-dependencies in synaptic targets associated with Alzheimer's disease. Mol Cell Neurosci 2021; 115:103657. [PMID: 34314836 DOI: 10.1016/j.mcn.2021.103657] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/14/2021] [Accepted: 07/18/2021] [Indexed: 11/28/2022] Open
Abstract
Recent studies have identified NOTCH signaling as a contributor of neurodegeneration including Alzheimer's disease' (AD) pathophysiology. As part of the efforts to understand molecular mechanisms and players involved in neurodegenerative dementia, we employed transgenic mouse models with Notch1 and Rbpjk loss of function (LOF) mutation in pyramidal neurons of the CA fields. Using RNA-seq, we have investigated the differential expression of NOTCH-dependent genes either upon environmental enrichment (EE) or upon kainic acid (KA) injury. We found a substantial genetic diversity in absence of both NOTCH1 receptor or RBPJK transcriptional activator. Among differentially expressed genes, we observed a significant upregulation of Gabra2a in both knockout models, suggesting a role for NOTCH signaling in the modulation of E/I balance. Upon excitotoxic stimulation, loss of RBPJK results in decreased expression of synaptic proteins with neuroprotective effects. We confirmed Nptx2, Npy, Pdch8, TncC as direct NOTCH1/RBPJK targets and Bdnf and Scg2 as indirect targets. Finally, we translate these findings into human entorhinal cortex containing the hippocampal region from AD patients performing targeted transcripts analysis. We observe an increased trend for RBPJK and the ligand DNER starting in the mild-moderate stage of the disease with no change of NOTCH1 expression. Alongside, expression of the Notch targets Hes5 and Hey1 tend to rise in the intermediate stage of the disease and drop in severe AD. Similarly the newly discovered NOTCH targets, NPTX2, NPY, BDNF show an up-warding tendency during the mild-moderate stage, and decline in the severe phase of the disease. This study identifies NOTCH as a central signaling cascade capable of modulating synaptic transmission in response to excitatory insult through the activation of neuroprotective genes that have been associated to AD.
Collapse
Affiliation(s)
- A Perna
- Section of Medicine, Department NMS, University of Fribourg, Fribourg, Switzerland
| | - S Marathe
- Centre for Neuroscience, Indian Institute of Science, Bangalore, India
| | - R Dreos
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - L Falquet
- Biochemistry Unit, University of Fribourg and Swiss Institute of Bioinformatics, Fribourg, Switzerland
| | - H Akarsu Egger
- Biochemistry Unit, University of Fribourg and Swiss Institute of Bioinformatics, Fribourg, Switzerland
| | - L Alberi Auber
- Section of Medicine, Department NMS, University of Fribourg, Fribourg, Switzerland; Swiss Integrative Center for Human Health, Fribourg, Switzerland.
| |
Collapse
|
12
|
Wang YH, Ding ZY, Cheng YJ, Chien CT, Huang ML. An Efficient Screen for Cell-Intrinsic Factors Identifies the Chaperonin CCT and Multiple Conserved Mechanisms as Mediating Dendrite Morphogenesis. Front Cell Neurosci 2020; 14:577315. [PMID: 33100975 PMCID: PMC7546278 DOI: 10.3389/fncel.2020.577315] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/02/2020] [Indexed: 12/25/2022] Open
Abstract
Dendritic morphology is inextricably linked to neuronal function. Systematic large-scale screens combined with genetic mapping have uncovered several mechanisms underlying dendrite morphogenesis. However, a comprehensive overview of participating molecular mechanisms is still lacking. Here, we conducted an efficient clonal screen using a collection of mapped P-element insertions that were previously shown to cause lethality and eye defects in Drosophila melanogaster. Of 280 mutants, 52 exhibited dendritic defects. Further database analyses, complementation tests, and RNA interference validations verified 40 P-element insertion genes as being responsible for the dendritic defects. Twenty-eight mutants presented severe arbor reduction, and the remainder displayed other abnormalities. The intrinsic regulators encoded by the identified genes participate in multiple conserved mechanisms and pathways, including the protein folding machinery and the chaperonin-containing TCP-1 (CCT) complex that facilitates tubulin folding. Mutant neurons in which expression of CCT4 or CCT5 was depleted exhibited severely retarded dendrite growth. We show that CCT localizes in dendrites and is required for dendritic microtubule organization and tubulin stability, suggesting that CCT-mediated tubulin folding occurs locally within dendrites. Our study also reveals novel mechanisms underlying dendrite morphogenesis. For example, we show that Drosophila Nogo signaling is required for dendrite development and that Mummy and Wech also regulate dendrite morphogenesis, potentially via Dpp- and integrin-independent pathways. Our methodology represents an efficient strategy for identifying intrinsic dendrite regulators, and provides insights into the plethora of molecular mechanisms underlying dendrite morphogenesis.
Collapse
Affiliation(s)
- Ying-Hsuan Wang
- Department of Biomedical Sciences, National Chung Cheng University, Chiayi, Taiwan.,Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Zhao-Ying Ding
- Department of Biomedical Sciences, National Chung Cheng University, Chiayi, Taiwan
| | - Ying-Ju Cheng
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | | | - Min-Lang Huang
- Department of Biomedical Sciences, National Chung Cheng University, Chiayi, Taiwan
| |
Collapse
|
13
|
Son AI, Mohammad S, Sasaki T, Ishii S, Yamashita S, Hashimoto-Torii K, Torii M. Dual Role of Rbpj in the Maintenance of Neural Progenitor Cells and Neuronal Migration in Cortical Development. Cereb Cortex 2020; 30:6444-6457. [PMID: 32780108 DOI: 10.1093/cercor/bhaa206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 06/09/2020] [Accepted: 07/06/2020] [Indexed: 12/30/2022] Open
Abstract
The development of the cerebral cortex is directed by a series of methodically precise events, including progenitor cell proliferation, neural differentiation, and cell positioning. Over the past decade, many studies have demonstrated the critical contributions of Notch signaling in neurogenesis, including that in the developing telencephalon. However, in vivo evidence for the role of Notch signaling in cortical development still remains limited partly due to the redundant functions of four mammalian Notch paralogues and embryonic lethality of the knockout mice. Here, we utilized the conditional deletion and in vivo gene manipulation of Rbpj, a transcription factor that mediates signaling by all four Notch receptors, to overcome these challenges and examined the specific roles of Rbpj in cortical development. We report severe structural abnormalities in the embryonic and postnatal cerebral cortex in Rbpj conditional knockout mice, which provide strong in vivo corroboration of previously reported functions of Notch signaling in neural development. Our results also provide evidence for a novel dual role of Rbpj in cell type-specific regulation of two key developmental events in the cerebral cortex: the maintenance of the undifferentiated state of neural progenitor cells, and the radial and tangential allocation of neurons, possibly through stage-dependent differential regulation of Ngn1.
Collapse
Affiliation(s)
- Alexander I Son
- Center for Neuroscience Research, Children's Research Institute, Children's National Hospital, Washington, DC 20010, USA
| | - Shahid Mohammad
- Center for Neuroscience Research, Children's Research Institute, Children's National Hospital, Washington, DC 20010, USA
| | - Toru Sasaki
- Center for Neuroscience Research, Children's Research Institute, Children's National Hospital, Washington, DC 20010, USA
| | - Seiji Ishii
- Center for Neuroscience Research, Children's Research Institute, Children's National Hospital, Washington, DC 20010, USA
| | - Satoshi Yamashita
- Center for Neuroscience Research, Children's Research Institute, Children's National Hospital, Washington, DC 20010, USA
| | - Kazue Hashimoto-Torii
- Center for Neuroscience Research, Children's Research Institute, Children's National Hospital, Washington, DC 20010, USA.,Department of Pediatrics, Pharmacology and Physiology, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Masaaki Torii
- Center for Neuroscience Research, Children's Research Institute, Children's National Hospital, Washington, DC 20010, USA.,Department of Pediatrics, Pharmacology and Physiology, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| |
Collapse
|
14
|
Kim CW, Lee SM, Ko EB, Go RE, Jeung EB, Kim MS, Choi KC. Inhibitory effects of cigarette smoke extracts on neural differentiation of mouse embryonic stem cells. Reprod Toxicol 2020; 95:75-85. [PMID: 32454085 DOI: 10.1016/j.reprotox.2020.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/13/2020] [Accepted: 05/18/2020] [Indexed: 12/24/2022]
Abstract
Maternal smoking during the perinatal period is linked to adverse neonatal outcomes such as low birth weight and birth defects. Numerous studies have shown that cigarette smoke or nicotine exposure has a widespread effect on fetal nerve development. However, there exists a lack of understanding of what specific changes occur at the cellular level on persistent exposure to cigarette smoke during the differentiation of embryonic stem cells (ESCs) into neural cells. We previously investigated the effects of cigarette smoke extract (CSE) and its major component, nicotine, on the neural differentiation of mouse embryonic stem cells (mESCs). Differentiation of mESCs into neural progenitor cells (NPCs) or neural crest cells (NCCs) was induced with chemically defined media, and the cells were continuously exposed to CSE or nicotine during neural differentiation and development. Disturbed balance of the pluripotency state was observed in the NPCs, with consequent inhibition of neurite outgrowth and glial fibrillary acidic protein (Gfap) expression. These inhibitions correlated with the altered expression of proteins involved in the Notch-1 signaling pathways. The migration ability of NCCs was significantly decreased by CSE or nicotine exposure, which was associated with reduced protein expression of migration-related proteins. Taken together, we concluded that CSE and nicotine inhibit differentiation of mESCs into NPCs or NCCs, and may disrupt functional development of neural cells. These results imply that cigarette smoking during the perinatal period potentially inhibits neural differentiation and development of ESCs cells, leading to neonatal abnormal brain development and behavioral abnormalities.
Collapse
Affiliation(s)
- Cho-Won Kim
- Laboratory of Biochemistry and Immunology, Republic of Korea
| | - Sung-Moo Lee
- Laboratory of Biochemistry and Immunology, Republic of Korea
| | - Eul-Bee Ko
- Laboratory of Biochemistry and Immunology, Republic of Korea
| | - Ryeo-Eun Go
- Laboratory of Biochemistry and Immunology, Republic of Korea
| | - Eui-Bae Jeung
- Laboratory of Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Min-Seok Kim
- Inhalation Toxicology Research Group, Jeonbuk Department of Inhalation Research, Jeongeup, Korea Institute of Toxicology, Jeonbuk, Republic of Korea
| | - Kyung-Chul Choi
- Laboratory of Biochemistry and Immunology, Republic of Korea.
| |
Collapse
|
15
|
Salazar JL, Yang SA, Yamamoto S. Post-Developmental Roles of Notch Signaling in the Nervous System. Biomolecules 2020; 10:biom10070985. [PMID: 32630239 PMCID: PMC7408554 DOI: 10.3390/biom10070985] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 12/14/2022] Open
Abstract
Since its discovery in Drosophila, the Notch signaling pathway has been studied in numerous developmental contexts in diverse multicellular organisms. The role of Notch signaling in nervous system development has been extensively investigated by numerous scientists, partially because many of the core Notch signaling components were initially identified through their dramatic ‘neurogenic’ phenotype of developing fruit fly embryos. Components of the Notch signaling pathway continue to be expressed in mature neurons and glia cells, which is suggestive of a role in the post-developmental nervous system. The Notch pathway has been, so far, implicated in learning and memory, social behavior, addiction, and other complex behaviors using genetic model organisms including Drosophila and mice. Additionally, Notch signaling has been shown to play a modulatory role in several neurodegenerative disease model animals and in mediating neural toxicity of several environmental factors. In this paper, we summarize the knowledge pertaining to the post-developmental roles of Notch signaling in the nervous system with a focus on discoveries made using the fruit fly as a model system as well as relevant studies in C elegans, mouse, rat, and cellular models. Since components of this pathway have been implicated in the pathogenesis of numerous psychiatric and neurodegenerative disorders in human, understanding the role of Notch signaling in the mature brain using model organisms will likely provide novel insights into the mechanisms underlying these diseases.
Collapse
Affiliation(s)
- Jose L. Salazar
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX 77030, USA; (J.L.S.); (S.-A.Y.)
| | - Sheng-An Yang
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX 77030, USA; (J.L.S.); (S.-A.Y.)
| | - Shinya Yamamoto
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX 77030, USA; (J.L.S.); (S.-A.Y.)
- Department of Neuroscience, BCM, Houston, TX 77030, USA
- Program in Developmental Biology, BCM, Houston, TX 77030, USA
- Development, Disease Models & Therapeutics Graduate Program, BCM, Houston, TX 77030, USA
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
- Correspondence: ; Tel.: +1-832-824-8119
| |
Collapse
|
16
|
Saito T. A Nucleolar Protein, Nepro, Is Essential for the Maintenance of Early Neural Stem Cells and Preimplantation Embryos. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1218:93-101. [PMID: 32060873 DOI: 10.1007/978-3-030-34436-8_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Notch signaling is required for maintaining neural stem cells (NSCs) in the developing brain. NSCs have potential to give rise to many neuronal types in the early telencephalon, and the potential decreases as embryonic development proceeds. Nepro, which encodes a unique nucleolar protein and is activated downstream of Notch, is essential for maintaining NSCs in the early telencephalon. Nepro is also expressed at basal levels and required for maintaining the preimplantation embryo, by repressing mitochondria-associated p53 apoptotic signaling. Notch signaling also controls dendritic complexity in mitral cells, major projection neurons in the olfactory bulb, showing that many steps of neural development involve Notch signaling.
Collapse
Affiliation(s)
- Tetsuichiro Saito
- Department of Developmental Biology, Graduate School of Medicine, Chiba University, Chiba, Japan.
| |
Collapse
|
17
|
Hunter GL, Giniger E. Phosphorylation and Proteolytic Cleavage of Notch in Canonical and Noncanonical Notch Signaling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1227:51-68. [DOI: 10.1007/978-3-030-36422-9_4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
18
|
Ho DM, Artavanis-Tsakonas S, Louvi A. The Notch pathway in CNS homeostasis and neurodegeneration. WILEY INTERDISCIPLINARY REVIEWS-DEVELOPMENTAL BIOLOGY 2019; 9:e358. [PMID: 31502763 DOI: 10.1002/wdev.358] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/19/2019] [Accepted: 06/23/2019] [Indexed: 12/19/2022]
Abstract
The role of the Notch signaling pathway in neural development has been well established over many years. More recent studies, however, have demonstrated that Notch continues to be expressed and active throughout adulthood in many areas of the central nervous system. Notch signals have been implicated in adult neurogenesis, memory formation, and synaptic plasticity in the adult organism, as well as linked to acute brain trauma and chronic neurodegenerative conditions. NOTCH3 mutations are responsible for the most common form of hereditary stroke, the progressive disorder cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy. Notch has also been associated with several progressive neurodegenerative diseases, including Alzheimer's disease, multiple sclerosis, and amyotrophic lateral sclerosis. Although numerous studies link Notch activity with CNS homeostasis and neurodegenerative diseases, the data thus far are primarily correlative, rather than functional. Nevertheless, the evidence for Notch pathway activity in specific neural cellular contexts is strong, and certainly intriguing, and points to the possibility that the pathway carries therapeutic promise. This article is categorized under: Nervous System Development > Flies Signaling Pathways > Cell Fate Signaling Nervous System Development > Vertebrates: General Principles.
Collapse
Affiliation(s)
- Diana M Ho
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts
| | | | - Angeliki Louvi
- Departments of Neurosurgery and Neuroscience and Program on Neurogenetics, Yale School of Medicine, New Haven, Connecticut
| |
Collapse
|
19
|
Zhong J, Li S, Zeng W, Li X, Gu C, Liu J, Luo XJ. Integration of GWAS and brain eQTL identifies FLOT1 as a risk gene for major depressive disorder. Neuropsychopharmacology 2019; 44:1542-1551. [PMID: 30771789 PMCID: PMC6785150 DOI: 10.1038/s41386-019-0345-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/11/2019] [Accepted: 02/12/2019] [Indexed: 12/28/2022]
Abstract
Major depressive disorder (MDD) is the most prevalent mental disorder that affects more than 200 million people worldwide. Recent large-scale genome-wide association studies (GWAS) have identified multiple risk variants that show robust association with MDD. Nevertheless, how the identified risk variants confer risk of MDD remains largely unknown. To identify risk variants that are associated with gene expression in human brain and to identify genes whose expression change may contribute to the susceptibility of MDD, we systematically integrated the genetic associations from a large-scale MDD GWAS (N = 480,359) and brain expression quantitative trait loci (eQTL) data (N = 494) using a Bayesian statistical framework (Sherlock). Sherlock integrative analysis showed that FLOT1 was significantly associated with MDD (P = 6.02 × 10-6), suggesting that risk variants may contribute to MDD susceptibility through affecting FLOT1 expression. We further examined the expression level of FLOT1 in MDD cases and controls and found that FLOT1 was significantly upregulated in brains and peripheral blood of MDD cases compared with controls (European sample). Interestingly, we found that FLOT1 expression was also significantly upregulated in peripheral blood of first-episode drug-naive MDD cases compared with controls (P = 1.01 × 10-7, Chinese sample). Our study identified FLOT1 as a novel MDD risk gene whose expression level may play a role in MDD. In addition, our findings also suggest that risk variants may confer risk of MDD through affecting expression of FLOT1. Further functional investigation of FLOT1 may provide new insights for MDD pathogenesis.
Collapse
Affiliation(s)
- Jingmei Zhong
- The first people’s hospital of Yunnan province, Psychiatry Department, 650032 Kunming, Yunnan China
| | - Shiwu Li
- 0000000119573309grid.9227.eKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223 Kunming, Yunnan China ,Kunming College of Life Science, University of Chinese Academy of Sciences, 650204 Kunming, Yunnan China
| | - Wanli Zeng
- Yunnan Academy of Tobacco Science, 650106 Kunming, Yunnan China
| | - Xiaoyan Li
- 0000000119573309grid.9227.eKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223 Kunming, Yunnan China ,Kunming College of Life Science, University of Chinese Academy of Sciences, 650204 Kunming, Yunnan China
| | - Chunjie Gu
- The first people’s hospital of Yunnan province, Psychiatry Department, 650032 Kunming, Yunnan China
| | - Jiewei Liu
- 0000000119573309grid.9227.eKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223 Kunming, Yunnan China
| | - Xiong-Jian Luo
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223, Kunming, Yunnan, China. .,Kunming College of Life Science, University of Chinese Academy of Sciences, 650204, Kunming, Yunnan, China. .,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, 650223, Kunming, China. .,KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223, Kunming, Yunnan, China.
| |
Collapse
|
20
|
Chen BJ, Tang YJ, Tang YL, Liang XH. What makes cells move: Requirements and obstacles for leader cells in collective invasion. Exp Cell Res 2019; 382:111481. [PMID: 31247191 DOI: 10.1016/j.yexcr.2019.06.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 06/15/2019] [Accepted: 06/23/2019] [Indexed: 02/05/2023]
Abstract
Most recently, mounting evidence has shown that cancer cells can invade as a cohesive and multicellular group with coordinated movement, which is called collective invasion. In this cohesive cancer cell group, cancer cells at the front of collective invasion are defined as leader cell that are responsible for many aspects of collective invasion, including sensing the microenvironment, determining the invasion direction, modifying the path of invasion and transmitting information to other cells. To fulfill their dispensable roles, leader cells are required to embark on some specific phenotypes with unusual expression of some proteins and it's very important to investigate into these proteins as they may serve as potential therapeutic targets. Here, in this review we will summarize current knowledge on four emerging proteins highly expressed in leader cells including K14, ΔNp63α, Dll4 and cysteine protease cathepsin B (CTSB), with a focus on their important roles in collective invasion and special mechanisms by which they promote collective invasion.
Collapse
Affiliation(s)
- Bing-Jun Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, China.
| | - Ya-Jie Tang
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan 430068, China.
| | - Ya-Ling Tang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral Pathology, West China Hospital of Stomatology, Sichuan University.China.
| | - Xin-Hua Liang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, China.
| |
Collapse
|
21
|
Landeira BS, Santana TTDS, Araújo JADM, Tabet EI, Tannous BA, Schroeder T, Costa MR. Activity-Independent Effects of CREB on Neuronal Survival and Differentiation during Mouse Cerebral Cortex Development. Cereb Cortex 2019; 28:538-548. [PMID: 27999124 DOI: 10.1093/cercor/bhw387] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 12/01/2016] [Indexed: 11/14/2022] Open
Abstract
Neuronal survival and morphological maturation depends on the action of the transcription factor calcium responsive element binding protein (CREB), which regulates expression of several target genes in an activity-dependent manner. However, it remains largely unknown whether CREB-mediated transcription could play a role at early stages of neuronal differentiation, prior to the establishment of functional synaptic contacts. Here, we show that CREB is phosphorylated at very early stages of neuronal differentiation in vivo and in vitro, even in the absence of depolarizing agents. Using genetic tools, we also show that inhibition of CREB-signaling affects neuronal growth and survival in vitro without affecting cell proliferation and neurogenesis. Expression of A-CREB or M-CREB, 2 dominant-negative inhibitors of CREB, decreases cell survival and the complexity of neuronal arborization. Similar changes are observed in neurons treated with protein kinase A (PKA) and Ca2+/calmodulin-dependent protein kinase II (CaMKII) inhibitors, which also show decreased levels of pCREBSer133. Notably, expression of CREB-FY, a Tyr134Phe CREB mutant with a lower Km for phosphorylation, partly rescues the effects of PKA and CaMKII inhibition. Our data indicate that CREB-mediated signaling play important roles at early stages of cortical neuron differentiation, prior to the establishment of fully functional synaptic contacts.
Collapse
Affiliation(s)
| | | | | | - Elie I Tabet
- Experimental Therapeutics and Molecular Imaging Laboratory, Neuroscience Center, Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA.,Program in Neuroscience, Harvard Medical School, Boston, Massachusetts, USA
| | - Bakhos A Tannous
- Experimental Therapeutics and Molecular Imaging Laboratory, Neuroscience Center, Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA.,Program in Neuroscience, Harvard Medical School, Boston, Massachusetts, USA
| | - Timm Schroeder
- Department of Biosystems Science and Engineering, ETH Zurich, Mattenstr. 26, 4058 Basel, Switzerland
| | - Marcos R Costa
- Brain Institute, Federal University of Rio Grande do Norte, Natal 59056-450, Brazil
| |
Collapse
|
22
|
Saffarzadeh F, Modarres Mousavi SM, Lotfinia AA, Alipour F, Hosseini Ravandi H, Karimzadeh F. Discrepancies of Notch 1 receptor during development of chronic seizures. J Cell Physiol 2019; 234:13773-13780. [DOI: 10.1002/jcp.28056] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 12/18/2018] [Indexed: 12/27/2022]
Affiliation(s)
| | - Sayed Mostafa Modarres Mousavi
- Shefa Neuroscience Research Center, Khatam Alanbia Hospital Tehran Iran
- Department of Nanobiotechnology Faculty of Biological Sciences, Tarbiat Modares University Tehran Iran
| | | | - Fatemeh Alipour
- Shefa Neuroscience Research Center, Khatam Alanbia Hospital Tehran Iran
| | | | - Fariba Karimzadeh
- Cellular and Molecular Research Center, Iran University of Medical Sciences Tehran Iran
| |
Collapse
|
23
|
Wilhelmsson U, Lebkuechner I, Leke R, Marasek P, Yang X, Antfolk D, Chen M, Mohseni P, Lasič E, Bobnar ST, Stenovec M, Zorec R, Nagy A, Sahlgren C, Pekna M, Pekny M. Nestin Regulates Neurogenesis in Mice Through Notch Signaling From Astrocytes to Neural Stem Cells. Cereb Cortex 2019; 29:4050-4066. [DOI: 10.1093/cercor/bhy284] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/05/2018] [Indexed: 12/21/2022] Open
Abstract
Abstract
The intermediate filament (nanofilament) protein nestin is a marker of neural stem cells, but its role in neurogenesis, including adult neurogenesis, remains unclear. Here, we investigated the role of nestin in neurogenesis in adult nestin-deficient (Nes–/–) mice. We found that the proliferation of Nes–/– neural stem cells was not altered, but neurogenesis in the hippocampal dentate gyrus of Nes–/– mice was increased. Surprisingly, the proneurogenic effect of nestin deficiency was mediated by its function in the astrocyte niche. Through its role in Notch signaling from astrocytes to neural stem cells, nestin negatively regulates neuronal differentiation and survival; however, its expression in neural stem cells is not required for normal neurogenesis. In behavioral studies, nestin deficiency in mice did not affect associative learning but was associated with impaired long-term memory.
Collapse
Affiliation(s)
- Ulrika Wilhelmsson
- Laboratory of Astrocyte Biology and CNS Regeneration, Center for Brain Repair, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Isabell Lebkuechner
- Laboratory of Astrocyte Biology and CNS Regeneration, Center for Brain Repair, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Renata Leke
- Laboratory of Astrocyte Biology and CNS Regeneration, Center for Brain Repair, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Pavel Marasek
- Laboratory of Astrocyte Biology and CNS Regeneration, Center for Brain Repair, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Xiaoguang Yang
- Laboratory of Astrocyte Biology and CNS Regeneration, Center for Brain Repair, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Daniel Antfolk
- Faculty of Science and Engineering, Biosciences, Åbo Akademi University, Turku, Finland
| | - Meng Chen
- Laboratory of Astrocyte Biology and CNS Regeneration, Center for Brain Repair, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Paria Mohseni
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON, Canada
| | - Eva Lasič
- Laboratory of Neuroendocrinology–Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Saša Trkov Bobnar
- Laboratory of Neuroendocrinology–Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Celica BIOMEDICAL, Ljubljana, Slovenia
| | - Matjaž Stenovec
- Laboratory of Neuroendocrinology–Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Celica BIOMEDICAL, Ljubljana, Slovenia
| | | | - Andras Nagy
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON, Canada
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
| | - Cecilia Sahlgren
- Faculty of Science and Engineering, Biosciences, Åbo Akademi University, Turku, Finland
| | - Marcela Pekna
- Laboratory of Regenerative Neuroimmunology, Center for Brain Repair, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- University of Newcastle, Newcastle, NSW, Australia
| | - Milos Pekny
- Laboratory of Astrocyte Biology and CNS Regeneration, Center for Brain Repair, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- University of Newcastle, Newcastle, NSW, Australia
| |
Collapse
|
24
|
Shen Y, Zhao H, Li P, Peng Y, Cui P, Miao F, Zhang Y, Zhang A, Zhang J. MHC Class I Molecules and PirB Shape Neuronal Morphology by Affecting the Dendritic Arborization of Cortical Neurons. Neurochem Res 2018; 44:312-322. [PMID: 30406910 DOI: 10.1007/s11064-018-2676-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 10/29/2018] [Accepted: 10/30/2018] [Indexed: 12/30/2022]
Abstract
Neuronal MHC class I proteins have been previously reported to regulate synaptic plasticity. Several reports indicate MHC class I proteins are expressed early during development of the nervous system, suggesting they may also play a role in neuronal development. Using cultured cortical neurons, we show MHC class I proteins aggregate at specific sites in neuronal cell bodies, which overlap with the actin cytoskeleton. Knockout of MHC class I in cultured neurons increases total dendritic length and the number of branch points. These effects are abolished by reintroducing MHC class I expression. Similarly, blocking of MHC class I proteins or PirB by an MHCI antibody or a soluble PirB ectodomain respectively, mimics the knock out phenotype of increased dendritic branching. This effect is correlated with decreased phosphorylation of both LIMK and cofilin, suggesting it may be mediated by an induction of cofilin activity. Finally, layer II and III cortical neurons in the sensorimotor region of an MHC class I deficiency mouse model show increased dendritic growth and branching. Altogether, our results suggest MHC class I plays a role in inhibiting or limiting the degree of dendrite arborization during the development of cortical neurons.
Collapse
Affiliation(s)
- Yuqing Shen
- Department of Microbiology and Immunology, Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Huanhuan Zhao
- Department of Microbiology and Immunology, Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Ping Li
- Department of Microbiology and Immunology, Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Yaqin Peng
- Department of Microbiology and Immunology, Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Pengfei Cui
- Department of Microbiology and Immunology, Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Fengqin Miao
- Department of Microbiology and Immunology, Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Ying Zhang
- Department of Microbiology and Immunology, Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Medical School, Southeast University, Nanjing, China
| | - Aifeng Zhang
- Department of Pathology, Medical School, Southeast University, Nanjing, China
| | - Jianqiong Zhang
- Department of Microbiology and Immunology, Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Medical School, Southeast University, Nanjing, China. .,Jiangsu Key Laboratory of Molecular and Functional Imaging, Medical School, Zhongda Hospital, Southeast University, Nanjing, China.
| |
Collapse
|
25
|
Balaganapathy P, Baik SH, Mallilankaraman K, Sobey CG, Jo DG, Arumugam TV. Interplay between Notch and p53 promotes neuronal cell death in ischemic stroke. J Cereb Blood Flow Metab 2018; 38:1781-1795. [PMID: 28617078 PMCID: PMC6168918 DOI: 10.1177/0271678x17715956] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Stroke is the world's second leading cause of mortality, with a high incidence of morbidity. Numerous neuronal membrane receptors are activated by endogenous ligands and may contribute to infarct development. Notch is a well-characterized membrane receptor involved in cell differentiation and proliferation, and now shown to play a pivotal role in cell death during ischemic stroke. Blockade of Notch signaling by inhibition of γ-secretase, an enzyme that generates the active form of Notch, is neuroprotective following stroke. We have also identified that Pin1, a peptidyl-prolyl isomerase that regulates p53 transactivation under stress, promotes the pathogenesis of ischemic stroke via Notch signaling. Moreover, Notch can also mediate cell death through a p53-dependent pathway, resulting in apoptosis of neural progenitor cells. The current study has investigated the interplay between Notch and p53 under ischemic stroke conditions. Using pharmacological inhibitors, we have demonstrated that a Notch intracellular domain (NICD)/p53 interaction is involved in transcriptional regulation of genes downstream of p53 and NICD to modify stroke severity. Furthermore, the NICD/p53 interaction confers stability to p53 by rescuing it from ubiquitination. Together, these results indicate that Notch contributes to the pathogenesis of ischemic stroke by promoting p53 stability and signaling.
Collapse
Affiliation(s)
- Priyanka Balaganapathy
- 1 Department of Physiology, Yong Loo Lin School Medicine, National University of Singapore, Singapore, Singapore
| | - Sang-Ha Baik
- 1 Department of Physiology, Yong Loo Lin School Medicine, National University of Singapore, Singapore, Singapore.,2 School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Karthik Mallilankaraman
- 1 Department of Physiology, Yong Loo Lin School Medicine, National University of Singapore, Singapore, Singapore
| | - Christopher G Sobey
- 3 Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, Victoria, Australia
| | - Dong-Gyu Jo
- 2 School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Thiruma V Arumugam
- 1 Department of Physiology, Yong Loo Lin School Medicine, National University of Singapore, Singapore, Singapore.,2 School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea.,4 Neurobiology/Ageing Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| |
Collapse
|
26
|
Yin N, Hu B, Yang R, Liang S, Liang S, Faiola F. Assessment of the developmental neurotoxicity of silver nanoparticles and silver ions with mouse embryonic stem cells in vitro. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/jin2.49] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nuoya Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing 100085 China
- College of Resources and Environment; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Bowen Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing 100085 China
- College of Resources and Environment; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Renjun Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing 100085 China
- College of Resources and Environment; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Shaojun Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing 100085 China
- College of Resources and Environment; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Shengxian Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing 100085 China
- College of Resources and Environment; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Francesco Faiola
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing 100085 China
- College of Resources and Environment; University of Chinese Academy of Sciences; Beijing 100049 China
| |
Collapse
|
27
|
Nonneman A, Criem N, Lewandowski SA, Nuyts R, Thal DR, Pfrieger FW, Ravits J, Van Damme P, Zwijsen A, Van Den Bosch L, Robberecht W. Astrocyte-derived Jagged-1 mitigates deleterious Notch signaling in amyotrophic lateral sclerosis. Neurobiol Dis 2018; 119:26-40. [PMID: 30010003 DOI: 10.1016/j.nbd.2018.07.012] [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: 12/15/2017] [Revised: 06/21/2018] [Accepted: 07/11/2018] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a late-onset devastating degenerative disease mainly affecting motor neurons. Motor neuron degeneration is accompanied and aggravated by oligodendroglial pathology and the presence of reactive astrocytes and microglia. We studied the role of the Notch signaling pathway in ALS, as it is implicated in several processes that may contribute to this disease, including axonal retraction, microgliosis, astrocytosis, oligodendrocyte precursor cell proliferation and differentiation, and cell death. We observed abnormal activation of the Notch signaling pathway in the spinal cord of SOD1G93A mice, a well-established model for ALS, as well as in the spinal cord of patients with sporadic ALS (sALS). This increased activation was particularly evident in reactive GFAP-positive astrocytes. In addition, one of the main Notch ligands, Jagged-1, was ectopically expressed in reactive astrocytes in spinal cord from ALS mice and patients, but absent in resting astrocytes. Astrocyte-specific inactivation of Jagged-1 in presymptomatic SOD1G93A mice further exacerbated the activation of the Notch signaling pathway and aggravated the course of the disease in these animals without affecting disease onset. These data suggest that aberrant Notch signaling activation contributes to the pathogenesis of ALS, both in sALS patients and SOD1G93A mice, and that it is mitigated in part by the upregulation of astrocytic Jagged-1.
Collapse
Affiliation(s)
- Annelies Nonneman
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Nathan Criem
- VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, Herestraat 49, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Human Genetics, Herestraat 49, B-3000 Leuven, Belgium
| | - Sebastian A Lewandowski
- KTH-Royal Institute of Technology, Affinity Proteomics, SciLifeLab, 171 77 Stockholm, Sweden; Karolinska Institute, Department of Clinical Neuroscience, 171 77 Stockholm, Sweden
| | - Rik Nuyts
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Dietmar R Thal
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory for Neuropathology, Herestraat 49, B-3000 Leuven, Belgium; University Hospitals Leuven, Department of Neurology, Herestraat 49, B-3000 Leuven, Belgium
| | - Frank W Pfrieger
- Institute of Cellular and Integrative Neurosciences, CNRS UPR 3212, University of Strasbourg, 67084 Strasbourg, France
| | - John Ravits
- University of California, Department of Neurosciences, 9500 Gilman Drive, La Jolla, San Diego, CA 92093-0624, USA
| | - Philip Van Damme
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium; University Hospitals Leuven, Department of Neurology, Herestraat 49, B-3000 Leuven, Belgium
| | - An Zwijsen
- VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, Herestraat 49, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Human Genetics, Herestraat 49, B-3000 Leuven, Belgium
| | - Ludo Van Den Bosch
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Wim Robberecht
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium; University Hospitals Leuven, Department of Neurology, Herestraat 49, B-3000 Leuven, Belgium.
| |
Collapse
|
28
|
Liu M, Inoue K, Leng T, Zhou A, Guo S, Xiong ZG. ASIC1 promotes differentiation of neuroblastoma by negatively regulating Notch signaling pathway. Oncotarget 2018; 8:8283-8293. [PMID: 28030818 PMCID: PMC5352400 DOI: 10.18632/oncotarget.14164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 11/23/2016] [Indexed: 12/25/2022] Open
Abstract
In neurons, up-regulation of Notch activity either inhibits neurite extension or causes retraction of neurites. Conversely, inhibition of Notch1 facilitates neurite extension. Acid-sensing ion channels (ASICs) are a family of proton-gated cation channels, which play critical roles in synaptic plasticity, learning and memory and spine morphogenesis. Our pilot proteomics data from ASIC1a knock out mice implicated that ASIC1a may play a role in regulating Notch signaling, therefore, we explored whether or not ASIC1a regulates neurite growth during neuronal development through Notch signaling. In this study, we determined the effects of ASIC1a on neurite growth in a mouse neuroblastoma cell line, NS20Y cells, by modulating ASIC1a expression. We also determined the relationship between ASIC1a and Notch signaling on neuronal differentiation. Our results showed that down-regulation of ASIC1a in NS20Y cells inhibits CPT-cAMP induced neurite growth, while over expression of ASIC1a promotes its growth. In addition, down-regulation of ASIC1a increased the expression of Notch1 and its target gene Survivin while inhibitor of Notch significantly prevented the neurite extension induced by ASIC1a in NS20Y cells. These data indicate that Notch1 signaling may be required for ASIC1a-mediated neurite growth and neuronal differentiation.
Collapse
Affiliation(s)
- Mingli Liu
- Department of Microbiology, Biochemistry & Immunology, Atlanta, GA 30310, USA
| | - Koichi Inoue
- Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Tiandong Leng
- Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - An Zhou
- Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Shanchun Guo
- Department of Chemistry, RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA
| | - Zhi-Gang Xiong
- Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| |
Collapse
|
29
|
Temporal downregulation of the polyubiquitin gene Ubb affects neuronal differentiation, but not maturation, in cells cultured in vitro. Sci Rep 2018; 8:2629. [PMID: 29422555 PMCID: PMC5805694 DOI: 10.1038/s41598-018-21032-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 01/29/2018] [Indexed: 12/04/2022] Open
Abstract
Reduced levels of cellular ubiquitin (Ub) pools due to disruption of the polyubiquitin gene Ubb lead to dysregulation of neural stem cell (NSC) differentiation and impaired neuronal maturation in cells isolated from Ubb−/− mouse embryonic brains. However, it is currently unknown whether Ub is required for the specific stage of neuronal development or whether it plays a pleiotropic role throughout the process. To answer this question, we aimed to downregulate Ubb expression temporally during neuronal development, which could not be achieved in Ubb−/− cells. Therefore, we exploited lentivirus-mediated knockdown (KD) of Ubb at different stages of neuronal development, and investigated their phenotypes. Here, we report the outcome of Ubb KD on two independent culture days in vitro (DIV): DIV1 and DIV7. We observed that NSCs did not differentiate properly via Ubb KD on DIV1, but the maturation of already differentiated neurons was intact via Ubb KD on DIV7. Intriguingly, Ubb KD activated Notch signaling when it had been suppressed, but exerted no effect when it had already been activated. Therefore, our study suggests that Ub plays a pivotal role in NSC differentiation to suppress Notch signaling, but not in the subsequent maturation stages of neurons that had already been differentiated.
Collapse
|
30
|
Chiola S, Do MD, Centrone L, Mallamaci A. Foxg1 Overexpression in Neocortical Pyramids Stimulates Dendrite Elongation Via Hes1 and pCreb1 Upregulation. Cereb Cortex 2018; 29:1006-1019. [DOI: 10.1093/cercor/bhy007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 01/07/2018] [Indexed: 12/21/2022] Open
Affiliation(s)
- Simone Chiola
- Lab of Cerebral Cortex Development, Neuroscience Area, SISSA, via Bonomea Trieste, Italy
| | - Mihn Duc Do
- Lab of Cerebral Cortex Development, Neuroscience Area, SISSA, via Bonomea Trieste, Italy
| | - Lucy Centrone
- Lab of Cerebral Cortex Development, Neuroscience Area, SISSA, via Bonomea Trieste, Italy
| | - Antonello Mallamaci
- Lab of Cerebral Cortex Development, Neuroscience Area, SISSA, via Bonomea Trieste, Italy
| |
Collapse
|
31
|
Du J, Wang X, Zhang X, Zhang X, Jiang H. DNER modulates the length, polarity and synaptogenesis of spiral ganglion neurons via the Notch signaling pathway. Mol Med Rep 2017; 17:2357-2365. [PMID: 29207144 PMCID: PMC5783477 DOI: 10.3892/mmr.2017.8115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 02/16/2017] [Indexed: 02/05/2023] Open
Abstract
The Delta/Notch-like epidermal growth factor-related receptor (DNER) serves an important role in the developing central nervous system. However, the actions of DNER in the development of the spiral ganglion in the inner ear have yet to be elucidated. Wild-type C57BL/6 mice were housed and time-mated for use in the present study. Primary neuronal cultures were prepared using spiral ganglion progenitors isolated from the modiolus of postnatal day 1 (P1) mice. DNER recombinant lentiviral vectors were constructed and transfected into the cultured primary neurons. The relative proportion of differentiated neurons and the length of their neurites were evaluated using microscopy. The results of the present study demonstrated that DNER was expressed in spiral ganglion neurons (SGNs) that exhibited significant polarity in the early differentiation stages; DNER expression gradually decreased until the polarity was lost on week 35. The in vitro expression of DNER was revealed to be similar to that in vivo. When DNER expression was silenced using RNA interference, the polarity of the differentiated neurons was altered and they exhibited significantly reduced dendritic length. In addition, the proportion of bipolar neurons was decreased compared with the control group. Furthermore, the expression of α-synuclein and the GluR2/3 subunits of the α-amin-o-3-hydroxy-5-methyl-4-isoxazolepropionic acid glutamate receptor were also reduced in cultured neurons in which DNER was silenced. Notch1 was co-expressed with DNER in SGNs isolated from P1 mice. The indirect Notch inhibitor N-[N-(3,5-Difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester also affected the polarity and the formation of protrusions, and reduced the expression of DNER and glial fibrillary acidic protein in SGNs. In conclusion, the present study demonstrated that DNER was expressed in SGNs and appeared to be involved in the mechanisms underlying neuronal polarity and neuritogenesis, via a Notch-dependent signaling pathway.
Collapse
Affiliation(s)
- Jintao Du
- Department of Otorhinolaryngology Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xianren Wang
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xiaobo Zhang
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xuemei Zhang
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Hongyan Jiang
- Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| |
Collapse
|
32
|
Xue F, Chen YC, Zhou CH, Wang Y, Cai M, Yan WJ, Wu R, Wang HN, Peng ZW. Risperidone ameliorates cognitive deficits, promotes hippocampal proliferation, and enhances Notch signaling in a murine model of schizophrenia. Pharmacol Biochem Behav 2017; 163:101-109. [PMID: 29037878 DOI: 10.1016/j.pbb.2017.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 09/26/2017] [Accepted: 09/28/2017] [Indexed: 12/11/2022]
Abstract
Antipsychotic agents have been reported to promote hippocampal neurogenesis and improve cognitive deficits; yet, the molecular mechanisms underlying these actions remain unclear. In the present study, we used a murine model of schizophrenia induced by 5-day intraperitoneal injection with the non-competitive N-methyl-d-aspartate receptor antagonist MK801 (0.3mg/kg/day) to assess cognitive behavioral deficits, changes in Notch signaling, and cellular proliferation in the hippocampus of adult male C57BL/6 mice after 2-week administration of risperidone (Rip, 0.2mg/kg/day) or vehicle. We then utilized in vivo stereotaxic injections of a lentivirus expressing a short hairpin RNA (shRNA) for Notch1 into the dentate gyrus to examine the role of Notch1 in the observed actions of Rip. We found that Rip ameliorated cognitive deficits and restored cell proliferation in MK801-treated mice in a manner associated with the up-regulation of Notch signaling molecules, including Notch1, Hes1, and Hes5. Moreover, these effects were abolished by pretreatment with Notch1 shRNA. Our results suggest that the ability of Rip to improve cognitive function in schizophrenia is mediated in part by Notch signaling.
Collapse
Affiliation(s)
- Fen Xue
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Yun-Chun Chen
- Department of Psychiatry, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710049, China
| | - Cui-Hong Zhou
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Ying Wang
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Min Cai
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Wen-Jun Yan
- Department of Anesthesiology, Gansu Provincial Hospital, Lanzhou 730000, China
| | - Rui Wu
- Xi'an Center for Disease Control and Prevention, Xi'an 710032, China
| | - Hua-Ning Wang
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Zheng-Wu Peng
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| |
Collapse
|
33
|
Siebel C, Lendahl U. Notch Signaling in Development, Tissue Homeostasis, and Disease. Physiol Rev 2017; 97:1235-1294. [PMID: 28794168 DOI: 10.1152/physrev.00005.2017] [Citation(s) in RCA: 598] [Impact Index Per Article: 85.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 05/19/2017] [Accepted: 05/26/2017] [Indexed: 02/07/2023] Open
Abstract
Notch signaling is an evolutionarily highly conserved signaling mechanism, but in contrast to signaling pathways such as Wnt, Sonic Hedgehog, and BMP/TGF-β, Notch signaling occurs via cell-cell communication, where transmembrane ligands on one cell activate transmembrane receptors on a juxtaposed cell. Originally discovered through mutations in Drosophila more than 100 yr ago, and with the first Notch gene cloned more than 30 yr ago, we are still gaining new insights into the broad effects of Notch signaling in organisms across the metazoan spectrum and its requirement for normal development of most organs in the body. In this review, we provide an overview of the Notch signaling mechanism at the molecular level and discuss how the pathway, which is architecturally quite simple, is able to engage in the control of cell fates in a broad variety of cell types. We discuss the current understanding of how Notch signaling can become derailed, either by direct mutations or by aberrant regulation, and the expanding spectrum of diseases and cancers that is a consequence of Notch dysregulation. Finally, we explore the emerging field of Notch in the control of tissue homeostasis, with examples from skin, liver, lung, intestine, and the vasculature.
Collapse
Affiliation(s)
- Chris Siebel
- Department of Discovery Oncology, Genentech Inc., DNA Way, South San Francisco, California; and Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
| | - Urban Lendahl
- Department of Discovery Oncology, Genentech Inc., DNA Way, South San Francisco, California; and Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
| |
Collapse
|
34
|
Hao XZ, Tian JQ, Yin LK, Zhang XX, Li CC, Feng XY, Yao ZW, Jiang M, Yang YM. MRI detects protective effects of DAPT treatment with modulation of microglia/macrophages at subacute and chronic stages following cerebral ischemia. Mol Med Rep 2017; 16:4493-4500. [PMID: 28849053 PMCID: PMC5647009 DOI: 10.3892/mmr.2017.7200] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 06/08/2017] [Indexed: 12/24/2022] Open
Abstract
Notch homolog 1 (Notch 1) signaling is regarded as a potential therapeutic target for modulating the inflammatory response and exhibiting neuroprotective effects in cerebral injury following stroke. N-[N-(3,5-difluorophenacetyl)-1-alanyl]-S-phenylglycine t-butylester (DAPT) efficiently inhibits activation of the Notch 1 signaling pathway in microglia and may protect brain tissue from ischemic damage. However, the temporal proliferation and morphological alterations of microglia/macrophages throughout progression of the disease, as well as the comprehensive alterations of the whole brain following DAPT treatment, remain to be elucidated. The present study evaluated the temporal proliferation and the morphological alterations of microglia/macrophages over the period of the subacute and chronic stages, in addition to dynamic alterations of brain tissue, using the magnetic resonance imaging (MRI) method, following DAPT treatment. Sprague-Dawley rats (n=40) were subjected to 90 min of middle cerebral artery occlusion and were treated with DAPT (n=20) or acted as controls with no treatment (n=20). The two groups of rats underwent MRI scans prior to the induction of stroke symptoms and at 24 h, 7, 14, 21 and 28 days following the stroke. A total of five rats from each group were sacrificed at 7, 14, 21 and 28 days following induction of stroke. Compared with control rats, the MRI data of the ipsilateral striatum in treated rats revealed ameliorated brain edema at the subacute stage and recovered brain tissue at the chronic stage. In addition to this, treatment attenuated the round-shape and promoted a ramified-shape of microglia/macrophages. The present study confirmed the protective effect of DAPT treatment by dynamically monitoring the cerebral alterations and indicated the possibility of DAPT treatment to alter microglial characteristics to induce a protective effect, via inhibition of the Notch signaling pathway.
Collapse
Affiliation(s)
- Xiao-Zhu Hao
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Jia-Qi Tian
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Le-Kang Yin
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Xiao-Xue Zhang
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Chan-Chan Li
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Xiao-Yuan Feng
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Zhen-Wei Yao
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Min Jiang
- Institutes of Science and State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200032, P.R. China
| | - Yan-Mei Yang
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| |
Collapse
|
35
|
Karimzadeh F, Modarres Mousavi SM, Alipour F, Hosseini Ravandi H, Kovac S, Gorji A. Developmental changes in Notch1 and NLE1 expression in a genetic model of absence epilepsy. Brain Struct Funct 2017; 222:2773-2785. [PMID: 28210849 DOI: 10.1007/s00429-017-1371-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Accepted: 01/16/2017] [Indexed: 01/08/2023]
Abstract
Childhood absence epilepsy (CAE) is an epilepsy syndrome with seizures occurring in the early childhood, highlighting that seizures susceptibility in CAE is dependent on brain development. The Notch 1 signalling pathway is important in brain development, yet the role of the Notch1 signalling pathway in CAE remains elusive. We here explored Notch1 and its modulator notchless homologue 1 (NLE1) expression in WAG/Rij and control rats using immunohistochemistry. Functional Notch 1 effects were assessed in WAG/Rij rats in vivo. WAG/Rij rats lack the developmental increase in cortical Notch1 and NLE 1 mRNA expression seen in controls, and Notch 1 and NLE1 mRNA and protein expression were lower in somatosensory cortices of WAG/Rij rats when compared to controls. This coincided with an overall decreased cortical GFAP expression in the early development in WAG/Rij rats. These effects were region-specific as they were not observed in thalamic tissues. Neuron-to-glia ratio as a marker of the impact of Notch signalling on differentiation was higher in layer 4 of somatosensory cortex of WAG/Rij rats. Acute application of Notch 1 agonist Jagged 1 suppressed, whereas DAPT, a Notch antagonist, facilitated spike and wave discharges (SWDs) in WAG/Rij rats. These findings point to Notch1 as an important signalling pathway in CAE which likely shapes architectural organization of the somatosensory cortex, a region critically involved in developmental epileptogenesis in CAE. More immediate effects of Notch 1 signalling are seen on in vivo SWDs in CAE, pointing to the Notch 1 pathway as a possible treatment target in CAE.
Collapse
MESH Headings
- Age Factors
- Animals
- Antigens, Nuclear/metabolism
- Brain Waves
- Disease Models, Animal
- Electrocorticography
- Epilepsy, Absence/genetics
- Epilepsy, Absence/metabolism
- Epilepsy, Absence/physiopathology
- Gene Expression Regulation, Developmental
- Genetic Predisposition to Disease
- Glial Fibrillary Acidic Protein/metabolism
- Immunohistochemistry
- Jagged-1 Protein/administration & dosage
- Microfilament Proteins/genetics
- Microfilament Proteins/metabolism
- Nerve Tissue Proteins/metabolism
- Phenotype
- Rats, Wistar
- Real-Time Polymerase Chain Reaction
- Receptor, Notch1/drug effects
- Receptor, Notch1/genetics
- Receptor, Notch1/metabolism
- Somatosensory Cortex/drug effects
- Somatosensory Cortex/growth & development
- Somatosensory Cortex/metabolism
- Somatosensory Cortex/physiopathology
- Thalamus/metabolism
- Thalamus/physiopathology
Collapse
Affiliation(s)
- Fariba Karimzadeh
- Shefa Neuroscience Research Centre, Khatam Alanbia Hospital, Tehran, Iran
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Fatemeh Alipour
- Shefa Neuroscience Research Centre, Khatam Alanbia Hospital, Tehran, Iran
| | | | - Stjepana Kovac
- Department of Neurology, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - Ali Gorji
- Shefa Neuroscience Research Centre, Khatam Alanbia Hospital, Tehran, Iran.
- Department of Neurology, Westfälische Wilhelms-Universität Münster, Münster, Germany.
- Epilepsy Research Center, Department of Neurosurgery, Westfälische Wilhelms-Universität Münster, Robert-Koch-Straße 45, 48149, Münster, Germany.
- Department of Neuroscience, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
36
|
Vasconcelos FF, Castro DS. Coordinating neuronal differentiation with repression of the progenitor program: Role of the transcription factor MyT1. NEUROGENESIS 2017. [DOI: 10.1080/23262133.2017.1329683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
37
|
Metabolic Factors and Adult Neurogenesis: Impacts of Chinese Herbal Medicine on Brain Repair in Neurological Diseases. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2017; 135:117-147. [PMID: 28807156 DOI: 10.1016/bs.irn.2017.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Adult neurogenesis plays the important roles in animal cognitive and emotional behaviors. Abnormal proliferation and differentiation of neural stem cells (NSCs) usually associate with the neural dysfunctions induced by different brain disorders. Therefore, targeting neurogenic factors could be a promoting strategy for neural regeneration and brain repair. Importantly, epidemiological studies suggest metabolism disorders like diabetes and obesity significantly increase the risk of neurological and psychiatric diseases. A large number of studies indicate that metabolic factors could serve as the modulators to adult neurogenesis, providing the potentials of metabolic factors to regulate NSCs growth and neural regeneration therapy. This chapter reviews the current studies on the roles of metabolic factors in modulating adult neurogenesis and evaluates the potentials of Chinese Herbal Medicine (CHM) for the treatment of neurological or psychiatric disorders by targeting the metabolic factors. Traditional Chinese Medicine (TCM) including CHM and acupuncture is now widely applied for the treatment of metabolic diseases, and neurological diseases in Asia, because its' therapeutic principles meet the multiple targets and complexity characteristics of most neurological disorders. Different studies indicate that there are many active compounds perform the regulations to metabolic factors and promoting neurogenesis. This chapter systematically summarizes the current progress and understanding of the active compounds and their underlying mechanisms of CHM formulas for promoting neurogenesis. Many CHM formulas and their active ingredients that originally used for metabolic disorders show the promising effects on mediating neurogenesis and brain repair for the treatments of neurodegenerative diseases. Therefore, further investigations about the relationship between neurogenesis and metabolic regulations of CHM will bring new insights into understanding the mechanisms of adult neurogenesis and provide great opportunities to develop new therapeutic strategies for neurological diseases. Those studies will provide scientific guidance to develop the drugs from TCM resource.
Collapse
|
38
|
Gao F, Zhang YF, Zhang ZP, Fu LA, Cao XL, Zhang YZ, Guo CJ, Yan XC, Yang QC, Hu YY, Zhao XH, Wang YZ, Wu SX, Ju G, Zheng MH, Han H. miR-342-5p Regulates Neural Stem Cell Proliferation and Differentiation Downstream to Notch Signaling in Mice. Stem Cell Reports 2017; 8:1032-1045. [PMID: 28344005 PMCID: PMC5390133 DOI: 10.1016/j.stemcr.2017.02.017] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 02/17/2017] [Accepted: 02/20/2017] [Indexed: 12/13/2022] Open
Abstract
Notch signaling is critically involved in neural development, but the downstream effectors remain incompletely understood. In this study, we cultured neurospheres from Nestin-Cre-mediated conditional Rbp-j knockout (Rbp-j cKO) and control embryos and compared their miRNA expression profiles using microarray. Among differentially expressed miRNAs, miR-342-5p showed upregulated expression as Notch signaling was genetically or pharmaceutically interrupted. Consistently, the promoter of the miR-342-5p host gene, the Ena-vasodilator stimulated phosphoprotein-like (Evl), was negatively regulated by Notch signaling, probably through HES5. Transfection of miR-342-5p promoted the differentiation of neural stem cells (NSCs) into intermediate neural progenitors (INPs) in vitro and reduced the stemness of NSCs in vivo. Furthermore, miR-342-5p inhibited the differentiation of neural stem/intermediate progenitor cells into astrocytes, likely mediated by targeting GFAP directly. Our results indicated that miR-342-5p could function as a downstream effector of Notch signaling to regulate the differentiation of NSCs into INPs and astrocytes commitment. miR-342-5p acts as a downstream effector of canonical Notch signaling Notch signal inhibits miR-342-5p expression by regulating its host gene Evl miR-342-5p promotes the transition of NSCs into INPs Astrocyte commitment was suppressed by miR-342-5p targeting GFAP
Collapse
Affiliation(s)
- Fang Gao
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China; Institute of Neurosciences, Department of Neurobiology, Collaborative Innovation Center for Brain Science, School of Basic Medicine, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Yu-Fei Zhang
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Zheng-Ping Zhang
- Department of Spinal Surgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an 710054, China
| | - Luo-An Fu
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Xiu-Li Cao
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Yi-Zhe Zhang
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Chen-Jun Guo
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Xian-Chun Yan
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Qin-Chuan Yang
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China; Institute of Neurosciences, Department of Neurobiology, Collaborative Innovation Center for Brain Science, School of Basic Medicine, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Yi-Yang Hu
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Xiang-Hui Zhao
- Institute of Neurosciences, Department of Neurobiology, Collaborative Innovation Center for Brain Science, School of Basic Medicine, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Ya-Zhou Wang
- Institute of Neurosciences, Department of Neurobiology, Collaborative Innovation Center for Brain Science, School of Basic Medicine, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Sheng-Xi Wu
- Institute of Neurosciences, Department of Neurobiology, Collaborative Innovation Center for Brain Science, School of Basic Medicine, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China
| | - Gong Ju
- Institute of Neurosciences, Department of Neurobiology, Collaborative Innovation Center for Brain Science, School of Basic Medicine, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China.
| | - Min-Hua Zheng
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China.
| | - Hua Han
- Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Chang-Le Xi Street #17, Xi'an 710032, China.
| |
Collapse
|
39
|
Regulation of striatal dopamine responsiveness by Notch/RBP-J signaling. Transl Psychiatry 2017; 7:e1049. [PMID: 28267151 PMCID: PMC5416667 DOI: 10.1038/tp.2017.21] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 12/30/2016] [Accepted: 01/18/2017] [Indexed: 01/03/2023] Open
Abstract
Dopamine signaling is essential for reward learning and fear-related learning, and thought to be involved in neuropsychiatric diseases. However, the molecular mechanisms underlying the regulation of dopamine responsiveness is unclear. Here we show the critical roles of Notch/RBP-J signaling in the regulation of dopamine responsiveness in the striatum. Notch/RBP-J signaling regulates various neural cell fate specification, and neuronal functions in the adult central nervous system. Conditional deletion of RBP-J specifically in neuronal cells causes enhanced response to apomorphine, a non-selective dopamine agonist, and SKF38393, a D1 agonist, and impaired dopamine-dependent instrumental avoidance learning, which is corrected by SCH23390, a D1 antagonist. RBP-J deficiency drastically reduced dopamine release in the striatum and caused a subtle decrease in the number of dopaminergic neurons. Lentivirus-mediated gene transfer experiments showed that RBP-J deficiency in the striatum was sufficient for these deficits. These findings demonstrated that Notch/RBP-J signaling regulates dopamine responsiveness in the striatum, which may explain the mechanism whereby Notch/RBP-J signaling affects an individual's susceptibility to neuropsychiatric disease.
Collapse
|
40
|
Abstract
Parkin, an E3 ubiquitin ligase, is the most frequently mutated gene in hereditary Parkinson's disease. Inactivation of Parkin leads to impairment of the ubiquitin-proteasome system, resulting in the accumulation of misfolded or aggregated proteins and ensuing neurodegeneration. In this study, we show that Parkin positively regulates the Notch1 signaling pathway. Overexpression of Parkin stabilized Notch1-IC protein levels, whereas knockdown of Parkin decreased Notch1-IC protein stability. Notably, overexpression of Parkin disrupted oxidative stress-induced apoptosis in neuronal cells. However, knockdown of Notch1 inhibited Parkin-induced neuronal cell survival. Together, these results indicate that Parkin is a novel regulator of the Notch1 signaling pathway, which promotes neuronal cell survival.
Collapse
|
41
|
Muroyama Y, Baba A, Kitagawa M, Saito T. Olfactory Sensory Neurons Control Dendritic Complexity of Mitral Cells via Notch Signaling. PLoS Genet 2016; 12:e1006514. [PMID: 28027303 PMCID: PMC5189955 DOI: 10.1371/journal.pgen.1006514] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/29/2016] [Indexed: 11/29/2022] Open
Abstract
Mitral cells (MCs) of the mammalian olfactory bulb have a single primary dendrite extending into a single glomerulus, where they receive odor information from olfactory sensory neurons (OSNs). Molecular mechanisms for controlling dendritic arbors of MCs, which dynamically change during development, are largely unknown. Here we found that MCs displayed more complex dendritic morphologies in mouse mutants of Maml1, a crucial gene in Notch signaling. Similar phenotypes were observed by conditionally misexpressing a dominant negative form of MAML1 (dnMAML1) in MCs after their migration. Conversely, conditional misexpression of a constitutively active form of Notch reduced their dendritic complexity. Furthermore, the intracellular domain of Notch1 (NICD1) was localized to nuclei of MCs. These findings suggest that Notch signaling at embryonic stages is involved in the dendritic complexity of MCs. After the embryonic misexpression of dnMAML1, many MCs aberrantly extended dendrites to more than one glomerulus at postnatal stages, suggesting that Notch signaling is essential for proper formation of olfactory circuits. Moreover, dendrites in cultured MCs were shortened by Jag1-expressing cells. Finally, blocking the activity of Notch ligands in OSNs led to an increase in dendritic complexity as well as a decrease in NICD1 signals in MCs. These results demonstrate that the dendritic complexity of MCs is controlled by their presynaptic partners, OSNs. Olfactory circuits are critical for the survival of many animals. Odor information is transmitted from olfactory sensory neurons (OSNs) to relay neurons, the morphology of which is crucial for processing of the information and similar among species. The major relay neurons, mitral cells (MCs) in mammals and projection neurons in flies, have a single primary dendrite at the mature stage. Molecular mechanisms to control the formation of the dendrite are largely unknown. MCs dynamically change their dendrites during development. In this study, we show that the dendritic morphologies of MCs are controlled by Notch signaling, many factors of which are well conserved among species. Moreover, we have found that Notch signaling in MCs is activated by OSNs, and that Notch operates in the relay neurons in the mouse olfactory system, in contrast to the fly system, where Notch functions in OSNs. Therefore, our study has revealed a novel step for shaping the dendritic morphologies of MCs.
Collapse
Affiliation(s)
- Yuko Muroyama
- Department of Developmental Biology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Atsushi Baba
- Department of Developmental Biology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Motoo Kitagawa
- Department of Molecular and Tumor Pathology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tetsuichiro Saito
- Department of Developmental Biology, Graduate School of Medicine, Chiba University, Chiba, Japan
- * E-mail:
| |
Collapse
|
42
|
Li Y, Tzatzalos E, Kwan KY, Grumet M, Cai L. Transcriptional Regulation of Notch1 Expression by Nkx6.1 in Neural Stem/Progenitor Cells during Ventral Spinal Cord Development. Sci Rep 2016; 6:38665. [PMID: 27924849 PMCID: PMC5141430 DOI: 10.1038/srep38665] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 11/14/2016] [Indexed: 12/22/2022] Open
Abstract
Notch1 signaling plays a critical role in maintaining and determining neural stem/progenitor cell (NSPC) fate, yet the transcriptional mechanism controlling Notch1 specific expression in NSPCs remains incomplete. Here, we show transcription factor Nkx6.1 interacts with a cis-element (CR2, an evolutionarily conserved non-coding fragment in the second intron of Notch1 locus) and regulates the expression of Notch1 in ventral NSPCs of the developing spinal cord. We show that the Notch1 expression is modulated by the interaction of Nkx6.1 with a 139 bp enhancer sequence within CR2. Knockdown or overexpression of Nkx6.1 leads to down- or up-regulated Notch1 expression, respectively. In CR2-GFP transgenic mouse, GFP expression was found prominent in the ventricular zone and neural progenitor cells from embryonic day 9.5 to postnatal day 7. GFP+ cells were mainly neural progenitors for interneurons and not for motoneurons or glial cells. Moreover, GFP expression persisted in a subset of ependymal cells in the adult spinal cord, suggesting that CR2 is active in both embryonic and adult NSPCs. Together our data reveal a novel mechanism of Notch1 transcriptional regulation in the ventral spinal cord by Nkx6.1 via its binding with Notch1 enhancer CR2 during embryonic development.
Collapse
Affiliation(s)
- Ying Li
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, USA
| | - Evangeline Tzatzalos
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, USA
| | - Kelvin Y Kwan
- W.M. Keck Center for Collaborative Neuroscience, Department of Cell Biology and Neuroscience, Rutgers University, 604 Allison Road, Piscataway, NJ 08854, USA
| | - Martin Grumet
- W.M. Keck Center for Collaborative Neuroscience, Department of Cell Biology and Neuroscience, Rutgers University, 604 Allison Road, Piscataway, NJ 08854, USA
| | - Li Cai
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, USA
| |
Collapse
|
43
|
Brai E, Alina Raio N, Alberi L. Notch1 hallmarks fibrillary depositions in sporadic Alzheimer's disease. Acta Neuropathol Commun 2016; 4:64. [PMID: 27364742 PMCID: PMC4929714 DOI: 10.1186/s40478-016-0327-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 05/17/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Notch1 signaling is a cellular cascade with a fundamental role from brain development to adult brain function. Reduction in Notch1 affects synaptic plasticity, memory and olfaction. On the other hand, Notch1 overactivation after brain injury is detrimental for neuronal survival. Some familial Alzheimer's disease (FAD) mutations in Presenilins can affect Notch1 processing/activation. Others report that Notch1 is overexpressed in sporadic Alzheimer's disease (AD). These works indicate that imbalances in Notch1 may be implicated in AD pathophysiology. In this study, we addressed whether Notch1 alteration can be considered a hallmark of AD. RESULTS Immunohistochemical analysis of Notch1 on cortical and hippocampal tissue from post-mortem patients indicates an accumulation of Notch1 in plaque-like structures in the brain parenchyma of subjects with sporadic AD. Further analysis shows that displaced Notch1 is associated with fibrillary tangles/plaques. Biochemical validation confirms an accumulation of Notch1 in cytosolic brain fractions. This increase in protein is not accompanied with a raise in the Notch1 targets Hes1 and Hey1. Examination of the cerebrospinal fluid (CSF) indicates that the full length and truncations of the Notch1 protein are reduced in AD patients hinting at an accumulation in the brain parenchyma. CONCLUSIONS Our research indicates that Notch1 is significantly displaced and accumulated in fibrillary structures in the susceptible hippocampal and cortical regions of sporadic AD patients. The dominant deposition of Notch1 in the brain parenchyma and its general signal reduction in neurons is consistent in all the AD patients analyzed and suggests that Notch1 may potentially be considered a novel hallmark of AD.
Collapse
|
44
|
Ding XF, Gao X, Ding XC, Fan M, Chen J. Postnatal dysregulation of Notch signal disrupts dendrite development of adult-born neurons in the hippocampus and contributes to memory impairment. Sci Rep 2016; 6:25780. [PMID: 27173138 PMCID: PMC4865733 DOI: 10.1038/srep25780] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 04/22/2016] [Indexed: 01/08/2023] Open
Abstract
Deficits in the Notch pathway are involved in a number of neurologic diseases associated with mental retardation or/and dementia. The mechanisms by which Notch dysregulation are associated with mental retardation and dementia are poorly understood. We found that Notch1 is highly expressed in the adult-born immature neurons in the hippocampus of mice. Retrovirus mediated knockout of notch1 in single adult-born immature neurons decreases mTOR signaling and compromises their dendrite morphogenesis. In contrast, overexpression of Notch1 intracellular domain (NICD), to constitutively activate Notch signaling in single adult-born immature neurons, promotes mTOR signaling and increases their dendrite arborization. Using a unique genetic approach to conditionally and selectively knockout notch 1 in the postnatally born immature neurons in the hippocampus decreases mTOR signaling, compromises their dendrite morphogenesis, and impairs spatial learning and memory. Conditional overexpression of NICD in the postnatally born immature neurons in the hippocampus increases mTOR signaling and promotes dendrite arborization. These data indicate that Notch signaling plays a critical role in dendrite development of immature neurons in the postnatal brain, and dysregulation of Notch signaling in the postnatally born neurons disrupts their development and thus contributes to the cognitive deficits associated with neurological diseases.
Collapse
Affiliation(s)
- Xue-Feng Ding
- Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, and Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA.,Department of Cognitive sciences, Beijing Institute of Basic Medical Sciences, Beijing 100850, P. R. China
| | - Xiang Gao
- Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, and Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Xin-Chun Ding
- Department of Pathology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Ming Fan
- Department of Cognitive sciences, Beijing Institute of Basic Medical Sciences, Beijing 100850, P. R. China
| | - Jinhui Chen
- Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, and Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| |
Collapse
|
45
|
Hayashi Y, Nishimune H, Hozumi K, Saga Y, Harada A, Yuzaki M, Iwatsubo T, Kopan R, Tomita T. A novel non-canonical Notch signaling regulates expression of synaptic vesicle proteins in excitatory neurons. Sci Rep 2016; 6:23969. [PMID: 27040987 PMCID: PMC4819173 DOI: 10.1038/srep23969] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 03/17/2016] [Indexed: 12/17/2022] Open
Abstract
Notch signaling plays crucial roles for cellular differentiation during development through γ-secretase-dependent intramembrane proteolysis followed by transcription of target genes. Although recent studies implicate that Notch regulates synaptic plasticity or cognitive performance, the molecular mechanism how Notch works in mature neurons remains uncertain. Here we demonstrate that a novel Notch signaling is involved in expression of synaptic proteins in postmitotic neurons. Levels of several synaptic vesicle proteins including synaptophysin 1 and VGLUT1 were increased when neurons were cocultured with Notch ligands-expressing NIH3T3 cells. Neuron-specific deletion of Notch genes decreased these proteins, suggesting that Notch signaling maintains the expression of synaptic vesicle proteins in a cell-autonomous manner. Unexpectedly, cGMP-dependent protein kinase (PKG) inhibitor, but not γ-secretase inhibitor, abolished the elevation of synaptic vesicle proteins, suggesting that generation of Notch intracellular domain is dispensable for this function. These data uncover a ligand-dependent, but γ-secretase-independent, non-canonical Notch signaling involved in presynaptic protein expression in postmitotic neurons.
Collapse
Affiliation(s)
- Yukari Hayashi
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan.,Department of Physiology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Hiroshi Nishimune
- Department of Anatomy and Cell Biology, University of Kansas Medical School, Kansas City, KS 66160, USA
| | - Katsuto Hozumi
- Department of Immunology, Tokai University School of Medicine, Kanagawa 259-1193, Japan
| | - Yumiko Saga
- Division of Mammalian Development, National Institute of Genetics, Shizuoka 411-8540, Japan.,Department of Genetics, SOKENDAI, Shizuoka 411-8540, Japan
| | - Akihiro Harada
- Department of Cell Biology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Michisuke Yuzaki
- Department of Physiology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Takeshi Iwatsubo
- Department of Neuropathology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Raphael Kopan
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110, USA.,Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Taisuke Tomita
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan.,Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110, USA
| |
Collapse
|
46
|
Brai E, Marathe S, Astori S, Fredj NB, Perry E, Lamy C, Scotti A, Alberi L. Notch1 Regulates Hippocampal Plasticity Through Interaction with the Reelin Pathway, Glutamatergic Transmission and CREB Signaling. Front Cell Neurosci 2015; 9:447. [PMID: 26635527 PMCID: PMC4659909 DOI: 10.3389/fncel.2015.00447] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 11/02/2015] [Indexed: 01/22/2023] Open
Abstract
Notch signaling plays a crucial role in adult brain function such as synaptic plasticity, memory and olfaction. Several reports suggest an involvement of this pathway in neurodegenerative dementia. Yet, to date, the mechanism underlying Notch activity in mature neurons remains unresolved. In this work, we investigate how Notch regulates synaptic potentiation and contributes to the establishment of memory in mice. We observe that Notch1 is a postsynaptic receptor with functional interactions with the Reelin receptor, apolipoprotein E receptor 2 (ApoER2) and the ionotropic receptor, N-methyl-D-aspartate receptor (NMDAR). Targeted loss of Notch1 in the hippocampal CA fields affects Reelin signaling by influencing Dab1 expression and impairs the synaptic potentiation achieved through Reelin stimulation. Further analysis indicates that loss of Notch1 affects the expression and composition of the NMDAR but not AMPAR. Glutamatergic signaling is further compromised through downregulation of CamKII and its secondary and tertiary messengers resulting in reduced cAMP response element-binding (CREB) signaling. Our results identify Notch1 as an important regulator of mechanisms involved in synaptic plasticity and memory formation. These findings emphasize the possible involvement of this signaling receptor in dementia.
Collapse
Affiliation(s)
- Emanuele Brai
- Department of Medicine, Institute of Anatomy, University of Fribourg Fribourg, Switzerland
| | - Swananda Marathe
- Department of Medicine, Institute of Anatomy, University of Fribourg Fribourg, Switzerland
| | - Simone Astori
- Department of Fundamental Neurosciences, University of Lausanne Lausanne, Switzerland
| | - Naila Ben Fredj
- Department of Medicine, Institute of Anatomy, University of Fribourg Fribourg, Switzerland
| | - Elisabeth Perry
- Histology Core Laboratory, Department of Cellular Biology and Anatomy, Georgia Health Sciences University Augusta, GA, USA
| | - Christophe Lamy
- Department of Medicine, Institute of Anatomy, University of Fribourg Fribourg, Switzerland
| | - Alessandra Scotti
- Institute of Anatomy, Faculty of Medicine, University of Bern Bern, Switzerland
| | - Lavinia Alberi
- Department of Medicine, Institute of Anatomy, University of Fribourg Fribourg, Switzerland ; Unit of Pathology, Department of Medicine, University of Fribourg Fribourg, Switzerland
| |
Collapse
|
47
|
Bexarotene-Activated Retinoid X Receptors Regulate Neuronal Differentiation and Dendritic Complexity. J Neurosci 2015; 35:11862-76. [PMID: 26311769 DOI: 10.1523/jneurosci.1001-15.2015] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
UNLABELLED Bexarotene-activated retinoid X receptors (RXRs) ameliorate memory deficits in Alzheimer's disease mouse models, including mice expressing human apolipoprotein E (APOE) isoforms. The goal of this study was to gain further insight into molecular mechanisms whereby ligand-activated RXR can affect or restore cognitive functions. We used an unbiased approach to discover genome-wide changes in RXR cistrome (ChIP-Seq) and gene expression profile (RNA-Seq) in response to bexarotene in the cortex of APOE4 mice. Functional categories enriched in both datasets revealed that bexarotene-liganded RXR affected signaling pathways associated with neurogenesis and neuron projection development. To further validate the significance of RXR for these functions, we used mouse embryonic stem (ES) cells, primary neurons, and APOE3 and APOE4 mice treated with bexarotene. In vitro data from ES cells confirmed that bexarotene-activated RXR affected neuronal development at different levels, including proliferation of neural progenitors and neuronal differentiation, and stimulated neurite outgrowth. This effect was validated in vivo by demonstrating an increased number of neuronal progenitors after bexarotene treatment in the dentate gyrus of APOE3 and APOE4 mice. In primary neurons, bexarotene enhanced the dendritic complexity characterized by increased branching, intersections, and bifurcations. This effect was confirmed by in vivo studies demonstrating that bexarotene significantly improved the compromised dendritic structure in the hippocampus of APOE4 mice. We conclude that bexarotene-activated RXRs promote genetic programs involved in the neurogenesis and development of neuronal projections and these results have significance for the improvement of cognitive deficits. SIGNIFICANCE STATEMENT Bexarotene-activated retinoid X receptors (RXRs) ameliorate memory deficits in Alzheimer's disease mouse models, including mice expressing human apolipoprotein E (APOE) isoforms. The goal of this study was to gain further insight into molecular mechanisms whereby ligand-activated RXR can affect or restore cognitive functions. We used an unbiased approach to discover genome-wide changes in RXR cistrome (ChIP-Seq) and gene expression profile (RNA-Seq) in response to bexarotene in the cortex of APOE4 mice. Functional categories enriched in both datasets revealed that liganded RXR affected signaling pathways associated with neurogenesis and neuron projection development. The significance of RXR for these functions was validated in mouse embryonic stem cells, primary neurons, and APOE3 and APOE4 mice treated with bexarotene.
Collapse
|
48
|
Imai Y, Kobayashi Y, Inoshita T, Meng H, Arano T, Uemura K, Asano T, Yoshimi K, Zhang CL, Matsumoto G, Ohtsuka T, Kageyama R, Kiyonari H, Shioi G, Nukina N, Hattori N, Takahashi R. The Parkinson's Disease-Associated Protein Kinase LRRK2 Modulates Notch Signaling through the Endosomal Pathway. PLoS Genet 2015; 11:e1005503. [PMID: 26355680 PMCID: PMC4565672 DOI: 10.1371/journal.pgen.1005503] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 08/14/2015] [Indexed: 12/03/2022] Open
Abstract
Leucine-rich repeat kinase 2 (LRRK2) is a key molecule in the pathogenesis of familial and idiopathic Parkinson’s disease (PD). We have identified two novel LRRK2-associated proteins, a HECT-type ubiquitin ligase, HERC2, and an adaptor-like protein with six repeated Neuralized domains, NEURL4. LRRK2 binds to NEURL4 and HERC2 via the LRRK2 Ras of complex proteins (ROC) domain and NEURL4, respectively. HERC2 and NEURL4 link LRRK2 to the cellular vesicle transport pathway and Notch signaling, through which the LRRK2 complex promotes the recycling of the Notch ligand Delta-like 1 (Dll1)/Delta (Dl) through the modulation of endosomal trafficking. This process negatively regulates Notch signaling through cis-inhibition by stabilizing Dll1/Dl, which accelerates neural stem cell differentiation and modulates the function and survival of differentiated dopaminergic neurons. These effects are strengthened by the R1441G ROC domain-mutant of LRRK2. These findings suggest that the alteration of Notch signaling in mature neurons is a component of PD etiology linked to LRRK2. LRRK2 is linked to autosomal dominant late-onset Parkinson’s disease, suggesting that LRRK2 gain-of-function mutations lead to age-dependent degeneration of the midbrain dopaminergic neurons. In this study, we describe two novel LRRK2-associated proteins HERC2 and NEURL4, which are a ubiquitin ligase and an adaptor-like protein, respectively. HERC2 and NEURL4 direct LRRK2 to Notch signaling pathway, in which the LRRK2-NEURL4-HERC2 complex promotes the recycling of the Notch ligand Delta-like 1 (Dll1)/Delta (Dl) through the modulation of endosomal trafficking. As a result, the amounts of Dll1/D1 on the plasma membrane are increased, which affects negatively Notch signaling through cis-inhibition. The effect is enhanced by a Parkinson’s-disease associated mutation of LRRK2. Inhibition of Notch signaling in adult dopaminergic neurons impairs its functions and survival. These findings indicate a possible link between Notch pathway and Parkinson’s disease.
Collapse
Affiliation(s)
- Yuzuru Imai
- Department of Research for Parkinson's Disease, Juntendo University Graduate School of Medicine, Tokyo, Japan
- * E-mail: (YI); (NH); (RT)
| | - Yoshito Kobayashi
- Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- CREST (Core Research for Evolutionary Science and Technology), Japan Science and Technology Agency, Saitama, Japan
| | - Tsuyoshi Inoshita
- Department of Research for Parkinson's Disease, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hongrui Meng
- Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Taku Arano
- Department of Research for Parkinson's Disease, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kengo Uemura
- Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takeshi Asano
- Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kenji Yoshimi
- Department of Neurophysiology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Chang-Liang Zhang
- Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- CREST (Core Research for Evolutionary Science and Technology), Japan Science and Technology Agency, Saitama, Japan
| | - Gen Matsumoto
- Department of Neuroscience for Neurodegenerative Disorders, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Toshiyuki Ohtsuka
- Department of Cell Biology, Institute for Virus Research, Kyoto University, Kyoto, Japan
| | - Ryoichiro Kageyama
- Department of Cell Biology, Institute for Virus Research, Kyoto University, Kyoto, Japan
| | - Hiroshi Kiyonari
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Developmental Biology, Kobe, Japan
| | - Go Shioi
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Developmental Biology, Kobe, Japan
| | - Nobuyuki Nukina
- Department of Neuroscience for Neurodegenerative Disorders, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nobutaka Hattori
- Department of Research for Parkinson's Disease, Juntendo University Graduate School of Medicine, Tokyo, Japan
- CREST (Core Research for Evolutionary Science and Technology), Japan Science and Technology Agency, Saitama, Japan
- Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Neuroscience for Neurodegenerative Disorders, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- * E-mail: (YI); (NH); (RT)
| | - Ryosuke Takahashi
- Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- CREST (Core Research for Evolutionary Science and Technology), Japan Science and Technology Agency, Saitama, Japan
- * E-mail: (YI); (NH); (RT)
| |
Collapse
|
49
|
Abstract
![]()
The
Notch signaling pathway is critical in development, neuronal
maintenance, and hematopoiesis. An obligate step in the activation
of this pathway is cleavage of its transmembrane (TM) domain by γ-secretase.
While the soluble domains have been extensively studied, little has
been done to characterize its TM and flanking juxtamembrane (JM) segments.
Here, we present the results of nuclear magnetic resonance (NMR) studies
of the human Notch1 TM/JM domain. The TM domain is largely α-helical.
While the flanking JM segments do not adopt regular secondary structure,
they interact with the membrane surface, suggesting membrane interactions
may play a role in modulating its cleavage by γ-secretase and
subsequent NOTCH signaling function.
Collapse
Affiliation(s)
- Catherine L Deatherage
- Department of Biochemistry, Center for Structural Biology, and Institute of Chemical Biology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-8725, United States
| | - Zhenwei Lu
- Department of Biochemistry, Center for Structural Biology, and Institute of Chemical Biology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-8725, United States
| | - Ji-Hun Kim
- Department of Biochemistry, Center for Structural Biology, and Institute of Chemical Biology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-8725, United States
| | - Charles R Sanders
- Department of Biochemistry, Center for Structural Biology, and Institute of Chemical Biology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-8725, United States
| |
Collapse
|
50
|
Baek HJ, Yoon JH, Ann EJ, Kim MY, Ahn JS, Kim SH, Jo EH, Lee HJ, Park HS. Alpha-synuclein negatively regulates Notch1 intracellular domain protein stability through promoting interaction with Fbw7. Neurosci Lett 2015; 600:6-11. [PMID: 26033182 DOI: 10.1016/j.neulet.2015.05.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/19/2015] [Accepted: 05/22/2015] [Indexed: 01/27/2023]
Abstract
Notch signaling pathway is well known that it is involved in regulating cell fate, proliferation and homeostasis. In this study, we show a novel function of alpha-synuclein (SNCA) to promote degradation of Notch1 intracellular domain (Notch1-IC) through Fbw7, ubiquitin E3 ligase. We identified that SNCA inhibits Notch1 transcription activity and diminishes the interaction between Notch1-IC and RBP-Jk. We also found decrease of Notch1-IC protein stability by exogenous and endogenous SNCA through proteasomal pathway, not through lysosomal pathway. And, we found that SNCA promotes interaction between Notch1-IC and Fbw7. Furthermore, SNCA directly interacts with Fbw7. SNCA increases ubiquitination of Notch-IC by Fbw7 through interaction with Fbw7. Together, these results suggest that SNCA is a novel regulator of Notch1-IC transcriptional activity with acting as an enhancer of the interaction of Notch1-IC and Fbw7 with increasing degradation of Notch1-IC.
Collapse
Affiliation(s)
- Hyeong-Jin Baek
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Ji-Hye Yoon
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Eun-Jung Ann
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Mi-Yeon Kim
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Ji-Seon Ahn
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Seol-Hee Kim
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Eun-Hye Jo
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Hye-Jin Lee
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Hee-Sae Park
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea.
| |
Collapse
|