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Nani JV, Ushirohira JM, Bradshaw NJ, Machado-de-Sousa JP, Hallak JEC, Hayashi MAF. Sodium nitroprusside as an adjunctive treatment for schizophrenia reduces the Ndel1 oligopeptidase activity. Braz J Psychiatry 2023. [PMID: 37994832 DOI: 10.47626/1516-4446-2023-3315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/23/2023] [Indexed: 11/24/2023]
Abstract
OBJECTIVE Schizophrenia (SCZ) is a disabling disorder that continues to defy clinicians and researchers. We investigated the effects of sodium nitroprusside (sNP) in an animal model of SCZ and as an add-on therapy in patients and the relationship between treatment with sNP and activity of the nDel1 enzyme, whose involvement in the pathophysiology of the disorder has been suggested earlier. METHODS Ndel1 activity was measured following sNP infusions in spontaneously hypertensive rats (SHR; 2.5 or 5.0 mg/kg) and in a double-blind trial with SCZ patients (0.5 μg/kg/min). RESULTS Ndel1 activity was significantly reduced after sNP infusion in blood of SHR compared to controls, and in patients receiving sNP (t = 7.756, df = 97, p < 0.0001, dcohen = 1.44) compared to placebo. Reduced Ndel1 activity between baseline and the end of the infusion was only seen in patients after treatment with sNP. CONCLUSION Our findings suggest that SCZ patients may benefit from adjunctive therapy with sNP and that the Ndel1 enzyme is a candidate biomarker of psychopathology in the disorder. Future research should look into the role of Ndel1 in SCZ and the potential effects of sNP and drugs with similar profiles of action in both animals and patients.
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Affiliation(s)
- João Victor Nani
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil. National Institute for Translational Medicine (INCT-TM, CNPq/FAPESP/CAPES), Ribeirão Preto, Brazil
| | - Juliana Mayumi Ushirohira
- National Institute for Translational Medicine (INCT-TM, CNPq/FAPESP/CAPES), Ribeirão Preto, Brazil. Neuroscience and Behavior Department, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | | | - João Paulo Machado-de-Sousa
- National Institute for Translational Medicine (INCT-TM, CNPq/FAPESP/CAPES), Ribeirão Preto, Brazil. Neuroscience and Behavior Department, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Jaime Eduardo Cecílio Hallak
- National Institute for Translational Medicine (INCT-TM, CNPq/FAPESP/CAPES), Ribeirão Preto, Brazil. Neuroscience and Behavior Department, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Mirian A F Hayashi
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil. National Institute for Translational Medicine (INCT-TM, CNPq/FAPESP/CAPES), Ribeirão Preto, Brazil
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2
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Christoff RR, Nani JV, Lessa G, Rabello T, Rossi AD, Krenn V, Higa LM, Tanuri A, Garcez PP, Hayashi MAF. Assessing the role of Ndel1 oligopeptidase activity in congenital Zika syndrome: Potential predictor of congenital syndrome endophenotype and treatment response. J Neurochem 2023; 166:763-776. [PMID: 37497817 DOI: 10.1111/jnc.15918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 06/22/2023] [Accepted: 06/30/2023] [Indexed: 07/28/2023]
Abstract
Maternal infections are among the main risk factors for cognitive impairments in the offspring. Zika virus (ZIKV) can be transmitted vertically, causing a set of heterogeneous birth defects, such as microcephaly, ventriculomegaly and corpus callosum dysgenesis. Nuclear distribution element like-1 (Ndel1) oligopeptidase controls crucial aspects of cerebral cortex development underlying cortical malformations. Here, we examine Ndel1 activity in an animal model for ZIKV infection, which was associated with deregulated corticogenesis. We observed here a reduction in Ndel1 activity in the forebrain associated with the congenital syndrome induced by ZIKV isolates, in an in utero and postnatal injections of different inoculum doses in mice models. In addition, we observed a strong correlation between Ndel1 activity and brain size of animals infected by ZIKV, suggesting the potential of this measure as a biomarker for microcephaly. More importantly, the increase of interferon (IFN)-beta signaling, which was used to rescue the ZIKV infection outcomes, also recovered Ndel1 activity to levels similar to those of uninfected healthy control mice, but with no influence on Ndel1 activity in uninfected healthy control animals. Taken together, we demonstrate for the first time here an association of corticogenesis impairments determined by ZIKV infection and the modulation of Ndel1 activity. Although further studies are still necessary to clarify the possible role(s) of Ndel1 activity in the molecular mechanism(s) underlying the congenital syndrome induced by ZIKV, we suggest here the potential of monitoring the Ndel1 activity to predict this pathological condition at early stages of embryos or offspring development, during while the currently employed methods are unable to detect impaired corticogenesis leading to microcephaly. Ndel1 activity may also be possibly used to follow up the positive response to the treatment, such as that employing the IFN-beta that is able to rescue the ZIKV-induced brain injury.
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Affiliation(s)
- Raissa R Christoff
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - João V Nani
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- National Institute for Translational Medicine (INCT-TM, CNPq/FAPESP/CAPES), Ribeirão Preto, Brazil
| | - Gabriel Lessa
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Tailene Rabello
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Atila D Rossi
- Instituto de Biologia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Veronica Krenn
- Department of Biotechnology and Bioscience, University of Milan-Bicocca, Milano, Italy
| | - Luiza M Higa
- Instituto de Biologia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Amilcar Tanuri
- Instituto de Biologia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Patricia P Garcez
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Mirian A F Hayashi
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- National Institute for Translational Medicine (INCT-TM, CNPq/FAPESP/CAPES), Ribeirão Preto, Brazil
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3
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Garrott SR, Gillies JP, Siva A, Little SR, El Jbeily R, DeSantis ME. Ndel1 disfavors dynein-dynactin-adaptor complex formation in two distinct ways. J Biol Chem 2023; 299:104735. [PMID: 37086789 PMCID: PMC10248797 DOI: 10.1016/j.jbc.2023.104735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 04/24/2023] Open
Abstract
Dynein is the primary minus-end-directed microtubule motor protein. To achieve activation, dynein binds to the dynactin complex and an adaptor to form the "activated dynein complex." The protein Lis1 aids activation by binding to dynein and promoting its association with dynactin and the adaptor. Ndel1 and its paralog Nde1 are dynein- and Lis1-binding proteins that help control dynein localization within the cell. Cell-based assays suggest that Ndel1-Nde1 also work with Lis1 to promote dynein activation, although the underlying mechanism is unclear. Using purified proteins and quantitative binding assays, here we found that the C-terminal region of Ndel1 contributes to dynein binding and negatively regulates binding to Lis1. Using single-molecule imaging and protein biochemistry, we observed that Ndel1 inhibits dynein activation in two distinct ways. First, Ndel1 disfavors the formation of the activated dynein complex. We found that phosphomimetic mutations in the C-terminal domain of Ndel1 increase its ability to inhibit dynein-dynactin-adaptor complex formation. Second, we observed that Ndel1 interacts with dynein and Lis1 simultaneously and sequesters Lis1 away from its dynein-binding site. In doing this, Ndel1 prevents Lis1-mediated dynein activation. Together, our work suggests that in vitro, Ndel1 is a negative regulator of dynein activation, which contrasts with cellular studies where Ndel1 promotes dynein activity. To reconcile our findings with previous work, we posit that Ndel1 functions to scaffold dynein and Lis1 together while keeping dynein in an inhibited state. We speculate that Ndel1 release can be triggered in cellular settings to allow for timed dynein activation.
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Affiliation(s)
- Sharon R Garrott
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA; Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan, USA
| | - John P Gillies
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Aravintha Siva
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Saffron R Little
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA; Program in Chemical Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Rita El Jbeily
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Morgan E DeSantis
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA; Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan, USA; Program in Chemical Biology, University of Michigan, Ann Arbor, Michigan, USA.
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4
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Habibi S, Yaghoubzad-Maleki M, Heshmati E, Khalifeh K. Effects of representative point mutations on dynamic behavior of the DISC1- Ndel1 complex: a molecular dynamics study. J Biomol Struct Dyn 2023; 41:13228-13234. [PMID: 36858606 DOI: 10.1080/07391102.2023.2183030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 01/18/2023] [Indexed: 03/03/2023]
Abstract
It has been found that the development of schizophrenia and some other psychiatric disorders is related to defects in the normal functioning of Disrupted-In-Schizophrenia 1 (DISC1). It is a large-sized protein containing 855 residues and acts as an active hub at the core of many interactions with various proteins. On the other hand, NudE Neurodevelopment Protein 1 Like 1 (Ndel1) plays a role in nervous system development via interaction with the DISC1. It was shown that some point mutations on DISC1 have clinical implications. In line with these reports, here we have used the NMR structure of the wild-type (WT) C-terminal tail of DISC1 in complex with the N-terminal fragment of Ndel1, and have constructed the three-dimensional structures of L62Q and L29Q mutants, as the pathologic variants of the complex. The time-dependent interaction of DISC1 with Ndel1 in the WT complex and mutants was simulated by performing molecular dynamics (MD) simulation using programs in the GROMACS package. It was found that the flexibility of residues in some regions of the protein chains increases, and secondary structural changes from ordered toward unordered one leads to destabilizing of the complex in mutants. Destabilization of the complex upon substitution of Leu by Gln was also confirmed by analysis of the contact map plot.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Saba Habibi
- Department of Biology, Faculty of Sciences, University of Zanjan, Zanjan, Iran
| | | | - Emran Heshmati
- Department of Biology, Faculty of Sciences, University of Zanjan, Zanjan, Iran
| | - Khosrow Khalifeh
- Department of Biology, Faculty of Sciences, University of Zanjan, Zanjan, Iran
- Department of Biotechnology, Research Institute of Modern Biological Techniques, University of Zanjan, Zanjan, Iran
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5
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Abstract
The microtubule minus-end-directed motility of cytoplasmic dynein 1 (dynein), arguably the most complex and versatile cytoskeletal motor, is harnessed for diverse functions, such as long-range organelle transport in neuronal axons and spindle assembly in dividing cells. The versatility of dynein raises a number of intriguing questions, including how is dynein recruited to its diverse cargo, how is recruitment coupled to activation of the motor, how is motility regulated to meet different requirements for force production and how does dynein coordinate its activity with that of other microtubule-associated proteins (MAPs) present on the same cargo. Here, these questions will be discussed in the context of dynein at the kinetochore, the supramolecular protein structure that connects segregating chromosomes to spindle microtubules in dividing cells. As the first kinetochore-localized MAP described, dynein has intrigued cell biologists for more than three decades. The first part of this Review summarizes current knowledge about how kinetochore dynein contributes to efficient and accurate spindle assembly, and the second part describes the underlying molecular mechanisms and highlights emerging commonalities with dynein regulation at other subcellular sites.
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Affiliation(s)
- Reto Gassmann
- Instituto de Investigação e Inovação em Saúde - i3S, Universidade do Porto, 4200-135 Porto, Portugal.,Instituto de Biologia Molecular e Celular - IBMC, Universidade do Porto, 4200-135 Porto, Portugal
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6
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Li W, Wang SS, Shan BQ, Qin JB, Zhao HY, Tian ML, He H, Cheng X, Zhang XH, Jin GH. miR-103-3p targets Ndel1 to regulate neural stem cell proliferation and differentiation. Neural Regen Res 2022; 17:401-408. [PMID: 34269216 PMCID: PMC8463973 DOI: 10.4103/1673-5374.317987] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The regulation of adult neural stem cells (NSCs) is critical for lifelong neurogenesis. MicroRNAs (miRNAs) are a type of small, endogenous RNAs that regulate gene expression post-transcriptionally and influence signaling networks responsible for several cellular processes. In this study, miR-103-3p was transfected into neural stem cells derived from embryonic hippocampal neural stem cells. The results showed that miR-103-3p suppressed neural stem cell proliferation and differentiation, and promoted apoptosis. In addition, miR-103-3p negatively regulated NudE neurodevelopment protein 1-like 1 (Ndel1) expression by binding to the 3' untranslated region of Ndel1. Transduction of neural stem cells with a lentiviral vector overexpressing Ndel1 significantly increased cell proliferation and differentiation, decreased neural stem cell apoptosis, and decreased protein expression levels of Wnt3a, β-catenin, phosphor-GSK-3β, LEF1, c-myc, c-Jun, and cyclin D1, all members of the Wnt/β-catenin signaling pathway. These findings suggest that Ndel1 is a novel miR-103-3p target and that miR-103-3p acts by suppressing neural stem cell proliferation and promoting apoptosis and differentiation. This study was approved by the Animal Ethics Committee of Nantong University, China (approval No. 20200826-003) on August 26, 2020.
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Affiliation(s)
- Wen Li
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Shan-Shan Wang
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Bo-Quan Shan
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Jian-Bing Qin
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - He-Yan Zhao
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Mei-Ling Tian
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Hui He
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Xiang Cheng
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Xin-Hua Zhang
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Guo-Hua Jin
- Department of Human Anatomy, Institute of Neurobiology, Nantong University; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
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7
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Gavrilovici C, Jiang Y, Kiroski I, Sterley TL, Vandal M, Bains J, Park SK, Rho JM, Teskey GC, Nguyen MD. Behavioral Deficits in Mice with Postnatal Disruption of Ndel1 in Forebrain Excitatory Neurons: Implications for Epilepsy and Neuropsychiatric Disorders. Cereb Cortex Commun 2021; 2:tgaa096. [PMID: 33615226 PMCID: PMC7876307 DOI: 10.1093/texcom/tgaa096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 12/11/2020] [Accepted: 12/28/2020] [Indexed: 12/30/2022] Open
Abstract
Dysfunction of nuclear distribution element-like 1 (Ndel1) is associated with schizophrenia, a neuropsychiatric disorder characterized by cognitive impairment and with seizures as comorbidity. The levels of Ndel1 are also altered in human and models with epilepsy, a chronic condition whose hallmark feature is the occurrence of spontaneous recurrent seizures and is typically associated with comorbid conditions including learning and memory deficits, anxiety, and depression. In this study, we analyzed the behaviors of mice postnatally deficient for Ndel1 in forebrain excitatory neurons (Ndel1 CKO) that exhibit spatial learning and memory deficits, seizures, and shortened lifespan. Ndel1 CKO mice underperformed in species-specific tasks, that is, the nest building, open field, Y maze, forced swim, and dry cylinder tasks. We surveyed the expression and/or activity of a dozen molecules related to Ndel1 functions and found changes that may contribute to the abnormal behaviors. Finally, we tested the impact of Reelin glycoprotein that shows protective effects in the hippocampus of Ndel1 CKO, on the performance of the mutant animals in the nest building task. Our study highlights the importance of Ndel1 in the manifestation of species-specific animal behaviors that may be relevant to our understanding of the clinical conditions shared between neuropsychiatric disorders and epilepsy.
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Affiliation(s)
- Cezar Gavrilovici
- Departments of Neurosciences & Pediatrics, University of California San Diego, Rady Children's Hospital San Diego, San Diego, CA 92123, USA
| | - Yulan Jiang
- Departments of Clinical Neurosciences, Cell Biology and Anatomy, and Biochemistry and Molecular Biology, Hotchkiss Brain Institute, Calgary, AB T2N 4N1, Canada
| | - Ivana Kiroski
- Departments of Clinical Neurosciences, Cell Biology and Anatomy, and Biochemistry and Molecular Biology, Hotchkiss Brain Institute, Calgary, AB T2N 4N1, Canada
| | - Toni-Lee Sterley
- Departments of Physiology and Pharmacology, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Milene Vandal
- Departments of Clinical Neurosciences, Cell Biology and Anatomy, and Biochemistry and Molecular Biology, Hotchkiss Brain Institute, Calgary, AB T2N 4N1, Canada
| | - Jaideep Bains
- Departments of Physiology and Pharmacology, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Sang Ki Park
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Jong M Rho
- Departments of Neurosciences & Pediatrics, University of California San Diego, Rady Children's Hospital San Diego, San Diego, CA 92123, USA
| | - G Campbell Teskey
- Department of Cell Biology and Anatomy, Hotchkiss Brain Institute, Calgary, AB T2N 4N1, Canada
| | - Minh Dang Nguyen
- Departments of Clinical Neurosciences, Cell Biology and Anatomy, and Biochemistry and Molecular Biology, Hotchkiss Brain Institute, Calgary, AB T2N 4N1, Canada
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8
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Li W, Wang S, He H, Qin J, Cheng X, Zhao H, Tian M, Zhang X, Jin G. Expression and function of Ndel1 during the differentiation of neural stem cells induced by hippocampal exosomesticle. Stem Cell Res Ther 2021; 12:51. [PMID: 33422130 PMCID: PMC7796549 DOI: 10.1186/s13287-020-02119-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/22/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND In the brain of adult mammals, neural stem cells persist in the subventricular zone of the lateral ventricle and the subgranular zone of the dentate gyrus, which are specialized niches with proliferative capacity. Most neural stem cells are in a quiescent state, but in response to extrinsic stimuli, they can exit from quiescence and become reactivated to produce new neurons, so neural stem cells are considered to be a potential source for cell replacement therapy of many nervous system diseases. We characterized the expression of Ndel1 during the differentiation of neural stem cells induced by hippocampus exosomes, and assessed the effect of Ndel1 on neural stem cells differentiation. METHODS Hippocampal exosomes were isolated and extracted, and co-cultured exosomes with neural stem cells. Western blot, flow cytometry, and immunofluorescence analyses were used to analyze expression of neuronal markers. Further, utilizing high-throughput RNA sequencing technology, we found that nudE neurodevelopment protein 1-like 1 was significantly upregulated in exosomes derived from denervated hippocampus, and then characterized its mechanism and function during neural stem cells differentiation by qRT-PCR, western blot, flow cytometry, and immunofluorescence analyses. RESULTS Our results revealed that exosomes of denervated hippocampus promoted the differentiation of neural stem cells into neuron. Hence, we identified that nudE neurodevelopment protein 1-like 1 was significantly upregulated and highly expressed in the nervous system. In addition, we found that miR-107-3p may regulate neural stem cell differentiation by targeting Ndel1. CONCLUSIONS Our results revealed that deafferentation of the hippocampal exosomes co-cultured with neural stem cells could promote them to differentiate into neurons. Hence, we found that miR-107-3p may regulate neural stem cells differentiation by targeting Ndel1. Importantly, Ndel1 enhanced spatial learning and hippocampal neurogenesis in rats after fimbria fornix transection in vivo. These findings set the stage for a better understanding of neurogenesis, a process that 1 day may inspire new treatments for central nervous system diseases.
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Affiliation(s)
- Wen Li
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, No. 19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, No. 19 Qixiu Road, No.3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, No.19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China
| | - Shanshan Wang
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, No. 19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, No. 19 Qixiu Road, No.3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, No.19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China
| | - Hui He
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, No. 19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, No. 19 Qixiu Road, No.3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, No.19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China
| | - Jianbing Qin
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, No. 19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, No. 19 Qixiu Road, No.3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, No.19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China
| | - Xiang Cheng
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, No. 19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, No. 19 Qixiu Road, No.3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, No.19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China
| | - Heyan Zhao
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, No. 19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, No. 19 Qixiu Road, No.3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, No.19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China
| | - Meiling Tian
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, No. 19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, No. 19 Qixiu Road, No.3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China.,Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, No.19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China
| | - Xinhua Zhang
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, No. 19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China. .,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, No. 19 Qixiu Road, No.3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China. .,Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, No.19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China. .,Department of Anatomy and Neurobiology, Jiangsu Key Laboratory of Neuroregeneration, Collaborative Innovation Center of Neuroregeneration, Medical School of Nantong University, Nantong, Jiangsu, China.
| | - Guohua Jin
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, No. 19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China. .,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, No. 19 Qixiu Road, No.3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China. .,Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, No.19 Qixiu Road, No. 3 Building of Qixiu Campus, Nantong, 226001, Jiangsu, China. .,Department of Anatomy and Neurobiology, Jiangsu Key Laboratory of Neuroregeneration, Collaborative Innovation Center of Neuroregeneration, Medical School of Nantong University, Nantong, Jiangsu, China.
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9
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Gavrilovici C, Jiang Y, Kiroski I, Teskey GC, Rho JM, Nguyen MD. Postnatal Role of the Cytoskeleton in Adult Epileptogenesis. Cereb Cortex Commun 2020; 1:tgaa024. [PMID: 32864616 PMCID: PMC7446231 DOI: 10.1093/texcom/tgaa024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/08/2020] [Accepted: 06/11/2020] [Indexed: 02/07/2023] Open
Abstract
Mutations in cytoskeletal proteins can cause early infantile and childhood epilepsies by misplacing newly born neurons and altering neuronal connectivity. In the adult epileptic brain, cytoskeletal disruption is often viewed as being secondary to aberrant neuronal activity and/or death, and hence simply represents an epiphenomenon. Here, we review the emerging evidence collected in animal models and human studies implicating the cytoskeleton as a potential causative factor in adult epileptogenesis. Based on the emerging evidence, we propose that cytoskeletal disruption may be an important pathogenic mechanism in the mature epileptic brain.
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Affiliation(s)
- Cezar Gavrilovici
- Departments of Neurosciences & Pediatrics, University of California San Diego, Rady Children's Hospital San Diego, San Diego, CA 92123, USA
| | - Yulan Jiang
- Departments of Clinical Neurosciences, Cell Biology & Anatomy, and Biochemistry & Molecular Biology, Hotchkiss Brain Institute, Alberta Children Hospital Research Institute, University of Calgary, Calgary T2N 4N1, Canada
| | - Ivana Kiroski
- Departments of Clinical Neurosciences, Cell Biology & Anatomy, and Biochemistry & Molecular Biology, Hotchkiss Brain Institute, Alberta Children Hospital Research Institute, University of Calgary, Calgary T2N 4N1, Canada
| | - G Campbell Teskey
- Department of Cell Biology & Anatomy, Hotchkiss Brain Institute, Alberta Children Hospital Research Institute, University of Calgary, Calgary T2N 4N1, Canada
| | - Jong M Rho
- Departments of Neurosciences & Pediatrics, University of California San Diego, Rady Children's Hospital San Diego, San Diego, CA 92123, USA
| | - Minh Dang Nguyen
- Departments of Clinical Neurosciences, Cell Biology & Anatomy, and Biochemistry & Molecular Biology, Hotchkiss Brain Institute, Alberta Children Hospital Research Institute, University of Calgary, Calgary T2N 4N1, Canada
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10
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Dal Mas C, Carvalho MS, Marins LA, Yonamine CM, Cordeiro Q, McIntyre RS, Mansur RB, Brietzke E, Hayashi MAF. Oligopeptidases activity in bipolar disorder: Ndel1 and angiotensin I converting enzyme. J Affect Disord 2019; 244:67-70. [PMID: 30321766 DOI: 10.1016/j.jad.2018.10.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 09/24/2018] [Accepted: 10/04/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Abnormal activity of two enzymes relevant to neurodevelopment, namely nuclear-distribution element-like 1 (Ndel1) and angiotensin I-converting enzyme (ACE), was reported in individuals with schizophrenia; to our knowledge, these oligopeptidases were never measured in bipolar disorder (BD). AIMS Evaluate the enzyme activity of Ndel1 and ACE in euthymic individuals with BD type 1 which was compare to healthy control (HC) group. METHODS Ndel1 and ACE activities were assessed in the serum of individuals with BD type 1 according to DSM-IV criteria (n = 70) and a HC group (n = 34). The possible differences between BD type 1 and HC groups were evaluated using Analysis of Covariance (ANCOVA), and the results were adjusted for age, gender and body mass index. RESULTS We observed a positive correlation between Ndel1 activity and the total YMRS score in BD group (p = 0.030) and a positive correlation between ACE activity and Ham-D score (p = 0.047). ANCOVA analysis showed lower Ndel1 activity in BDs compared to HCs. Interestingly, we did not observe between-groups differences in ACE activity, despite the recognized correlation of ACE activity levels with cognitive functions, also described to be worsened in psychiatric patients. CONCLUSION Oligopeptidases, especially Ndel1, which has been strongly correlated with neurodevelopment and brain formation, are potentially a good new target in the study of the neurobiology of BD. LIMITATIONS The relatively small sample size did not permit to examine the cause-effect relationship of clinical dimensions of BD and the enzymatic activity.
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Affiliation(s)
- Caroline Dal Mas
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), Rua 3 de maio 100, Ed. INFAR, 3rd floor, CEP 04044-020 São Paulo, Brazil
| | - Michelle S Carvalho
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), Rua 3 de maio 100, Ed. INFAR, 3rd floor, CEP 04044-020 São Paulo, Brazil
| | - Lucas A Marins
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), Rua 3 de maio 100, Ed. INFAR, 3rd floor, CEP 04044-020 São Paulo, Brazil
| | - Camila M Yonamine
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), Rua 3 de maio 100, Ed. INFAR, 3rd floor, CEP 04044-020 São Paulo, Brazil
| | - Quirino Cordeiro
- Department of Psychiatry, Irmandade da Santa Casa de Misericórdia de São Paulo (ISCMSP), São Paulo, Brazil
| | - Roger S McIntyre
- Mood Disorders Psychopharmacology Unit, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| | - Rodrigo B Mansur
- Mood Disorders Psychopharmacology Unit, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| | - Elisa Brietzke
- Department of Psychiatry, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo, 669, 3rd floor, Vila Clementino, CEP 04039-032 São Paulo, Brazil.
| | - Mirian A F Hayashi
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), Rua 3 de maio 100, Ed. INFAR, 3rd floor, CEP 04044-020 São Paulo, Brazil.
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11
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Klinman E, Tokito M, Holzbaur ELF. CDK5-dependent activation of dynein in the axon initial segment regulates polarized cargo transport in neurons. Traffic 2018; 18:808-824. [PMID: 28941293 DOI: 10.1111/tra.12529] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 09/19/2017] [Accepted: 09/19/2017] [Indexed: 02/03/2023]
Abstract
The unique polarization of neurons depends on selective sorting of axonal and somatodendritic cargos to their correct compartments. Axodendritic sorting and filtering occurs within the axon initial segment (AIS). However, the underlying molecular mechanisms responsible for this filter are not well understood. Here, we show that local activation of the neuronal-specific kinase cyclin-dependent kinase 5 (CDK5) is required to maintain AIS integrity, as depletion or inhibition of CDK5 induces disordered microtubule polarity and loss of AIS cytoskeletal structure. Furthermore, CDK5-dependent phosphorylation of the dynein regulator Ndel1 is required for proper re-routing of mislocalized somatodendritic cargo out of the AIS; inhibition of this pathway induces profound mis-sorting defects. While inhibition of the CDK5-Ndel1-Lis1-dynein pathway alters both axonal microtubule polarity and axodendritic sorting, we found that these defects occur on distinct timescales; brief inhibition of dynein disrupts axonal cargo sorting before loss of microtubule polarity becomes evident. Together, these studies identify CDK5 as a master upstream regulator of trafficking in vertebrate neurons, required for both AIS microtubule organization and polarized dynein-dependent sorting of axodendritic cargos, and support an ongoing and essential role for dynein at the AIS.
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Affiliation(s)
- Eva Klinman
- Neuroscience Graduate Group, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Mariko Tokito
- Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Erika L F Holzbaur
- Neuroscience Graduate Group, University of Pennsylvania, Philadelphia, Pennsylvania.,Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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12
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Gadelha A, Coleman J, Breen G, Mazzoti DR, Yonamine CM, Pellegrino R, Ota VK, Belangero SI, Glessner J, Sleiman P, Hakonarson H, Hayashi MAF, Bressan RA. Genome-wide investigation of schizophrenia associated plasma Ndel1 enzyme activity. Schizophr Res 2016; 172:60-7. [PMID: 26851141 DOI: 10.1016/j.schres.2016.01.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 01/19/2016] [Accepted: 01/23/2016] [Indexed: 10/22/2022]
Abstract
Ndel1 is a DISC1-interacting oligopeptidase that cleaves in vitro neuropeptides as neurotensin and bradykinin, and which has been associated with both neuronal migration and neurite outgrowth. We previously reported that plasma Ndel1 enzyme activity is lower in patients with schizophrenia (SCZ) compared to healthy controls (HCs). To our knowledge, no previous study has investigated the genetic factors associated with the plasma Ndel1 enzyme activity. In the current analyses, samples from 83 SCZ patients and 92 control subjects that were assayed for plasma Ndel1 enzyme activity were genotyped on Illumina Omni Express arrays. A genetic relationship matrix using genome-wide information was then used for ancestry correction, and association statistics were calculated genome-wide. Ndel1 enzyme activity was significantly lower in patients with SCZ (t=4.9; p<0.001) and was found to be associated with CAMK1D, MAGI2, CCDC25, and GABGR3, at a level of suggestive significance (p<10(-6)), independent of the clinical status. Then, we performed a model to investigate the observed differences for case/control measures. 2 SNPs at region 1p22.2 reached the p<10(-7) level. ZFPM2 and MAD1L1 were the only two genes with more than one hit at 10(-6) order of p value. Therefore, Ndel1 enzyme activity is a complex trait influenced by many different genetic variants that may contribute to SCZ physiopathology.
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Affiliation(s)
- Ary Gadelha
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, Brazil.
| | - Jonathan Coleman
- Medical Research Council Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Gerome Breen
- Medical Research Council Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry Psychology and Neuroscience, King's College London, London, United Kingdom; National Institute of Health Research Biomedical Research Centre for Mental Health, Maudsley Hospital and Institute of Psychiatry, Psychology and Neuroscience, King's College London, United Kingdom
| | | | - Camila M Yonamine
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, Brazil; Department of Pharmacology, UNIFESP/EPM, São Paulo, Brazil
| | - Renata Pellegrino
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, United States
| | - Vanessa Kiyomi Ota
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, Brazil; Department of Morphology and Genetics, UNIFESP/EPM, São Paulo, Brazil
| | - Sintia Iole Belangero
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, Brazil; Department of Morphology and Genetics, UNIFESP/EPM, São Paulo, Brazil
| | - Joseph Glessner
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, United States
| | - Patrick Sleiman
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, United States; Department of Pediatrics, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Hakon Hakonarson
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, United States; Department of Pediatrics, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | | | - Rodrigo A Bressan
- Department of Psychiatry, Universidade Federal de São Paulo (UNIFESP/EPM), São Paulo, Brazil
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13
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Arthur AL, Yang SZ, Abellaneda AM, Wildonger J. Dendrite arborization requires the dynein cofactor NudE. J Cell Sci 2015; 128:2191-201. [PMID: 25908857 PMCID: PMC4450295 DOI: 10.1242/jcs.170316] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 04/10/2015] [Indexed: 12/28/2022] Open
Abstract
The microtubule-based molecular motor dynein is essential for proper neuronal morphogenesis. Dynein activity is regulated by cofactors, and the role(s) of these cofactors in shaping neuronal structure are still being elucidated. Using Drosophila melanogaster, we reveal that the loss of the dynein cofactor NudE results in abnormal dendrite arborization. Our data show that NudE associates with Golgi outposts, which mediate dendrite branching, suggesting that NudE normally influences dendrite patterning by regulating Golgi outpost transport. Neurons lacking NudE also have increased microtubule dynamics, reflecting a change in microtubule stability that is likely to also contribute to abnormal dendrite growth and branching. These defects in dendritogenesis are rescued by elevating levels of Lis1, another dynein cofactor that interacts with NudE as part of a tripartite complex. Our data further show that the NudE C-terminus is dispensable for dendrite morphogenesis and is likely to modulate NudE activity. We propose that a key function of NudE is to enhance an interaction between Lis1 and dynein that is crucial for motor activity and dendrite architecture.
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Affiliation(s)
- Ashley L Arthur
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Sihui Z Yang
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706, USA Graduate Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Allison M Abellaneda
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706, USA Biochemistry Scholars Program, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Jill Wildonger
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706, USA Graduate Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI 53706, USA
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14
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Belzil C, Asada N, Ishiguro KI, Nakaya T, Parsons K, Pendolino V, Neumayer G, Mapelli M, Nakatani Y, Sanada K, Nguyen MD. p600 regulates spindle orientation in apical neural progenitors and contributes to neurogenesis in the developing neocortex. Biol Open 2014; 3:475-85. [PMID: 24812355 PMCID: PMC4058081 DOI: 10.1242/bio.20147807] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Apical neural progenitors (aNPs) drive neurogenesis by means of a program consisting of self-proliferative and neurogenic divisions. The balance between these two manners of division sustains the pool of apical progenitors into late neurogenesis, thereby ensuring their availability to populate the brain with terminal cell types. Using knockout and in utero electroporation mouse models, we report a key role for the microtubule-associated protein 600 (p600) in the regulation of spindle orientation in aNPs, a cellular event that has been associated with cell fate and neurogenesis. We find that p600 interacts directly with the neurogenic protein Ndel1 and that aNPs knockout for p600, depleted of p600 by shRNA or expressing a Ndel1-binding p600 fragment all display randomized spindle orientation. Depletion of p600 by shRNA or expression of the Ndel1-binding p600 fragment also results in a decreased number of Pax6-positive aNPs and an increased number of Tbr2-positive basal progenitors destined to become neurons. These Pax6-positive aNPs display a tilted mitotic spindle. In mice wherein p600 is ablated in progenitors, the production of neurons is significantly impaired and this defect is associated with microcephaly. We propose a working model in which p600 controls spindle orientation in aNPs and discuss its implication for neurogenesis.
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Affiliation(s)
- Camille Belzil
- Hotchkiss Brain Institute, University of Calgary, Departments of Clinical Neurosciences, Cell Biology and Anatomy, and Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Heritage Medical Research Building, Calgary, AB T2N 4N1, Canada
| | - Naoyuki Asada
- Molecular Genetics Research Laboratory, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kei-Ichiro Ishiguro
- Dana Farber Cancer Institute, 44 Binney Street, Smith Building 836, Boston, MA 02115, USA Institute of Molecular and Cellular Biosciences, University of Tokyo, 1-1-1 Yayoi, Tokyo 113-0032, Japan
| | - Takeo Nakaya
- Dana Farber Cancer Institute, 44 Binney Street, Smith Building 836, Boston, MA 02115, USA
| | - Kari Parsons
- Hotchkiss Brain Institute, University of Calgary, Departments of Clinical Neurosciences, Cell Biology and Anatomy, and Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Heritage Medical Research Building, Calgary, AB T2N 4N1, Canada
| | - Valentina Pendolino
- European Institute of Oncology, Department of Experimental Oncology, Via Adamello, 16-20139 Milan, Italy
| | - Gernot Neumayer
- Hotchkiss Brain Institute, University of Calgary, Departments of Clinical Neurosciences, Cell Biology and Anatomy, and Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Heritage Medical Research Building, Calgary, AB T2N 4N1, Canada
| | - Marina Mapelli
- European Institute of Oncology, Department of Experimental Oncology, Via Adamello, 16-20139 Milan, Italy
| | - Yoshihiro Nakatani
- Dana Farber Cancer Institute, 44 Binney Street, Smith Building 836, Boston, MA 02115, USA
| | - Kamon Sanada
- Molecular Genetics Research Laboratory, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Minh Dang Nguyen
- Hotchkiss Brain Institute, University of Calgary, Departments of Clinical Neurosciences, Cell Biology and Anatomy, and Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Heritage Medical Research Building, Calgary, AB T2N 4N1, Canada
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15
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Pei Z, Lang B, Fragoso YD, Shearer KD, Zhao L, Mccaffery PJA, Shen S, Ding YQ, McCaig CD, Collinson JM. The expression and roles of Nde1 and Ndel1 in the adult mammalian central nervous system. Neuroscience 2014; 271:119-36. [PMID: 24785679 PMCID: PMC4048543 DOI: 10.1016/j.neuroscience.2014.04.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 04/08/2014] [Accepted: 04/18/2014] [Indexed: 11/01/2022]
Abstract
Mental and neurological illnesses affect one in four people. While genetic linkage analyses have shown an association of nuclear distribution factor E (NDE1, or NudE) and its ohnolog NDE-like 1 (NDEL1, or Nudel) with mental disorders, the cellular mechanisms remain unclear. In the present study, we have demonstrated that Nde1 and Ndel1 are differentially localised in the subventricular zone (SVZ) of the forebrain and the subgranular zone (SGZ) of the hippocampus, two regions where neurogenesis actively occurs in the adult brain. Nde1, but not Ndel1, is localized to putative SVZ stem cells, and to actively dividing progenitors of the SGZ. The influence of these proteins on neural stem cell differentiation was investigated by overexpression in a hippocampal neural stem cell line, HCN-A94. Increasing Nde1 expression in this neural stem cell line led to increased neuronal differentiation while decreasing levels of astroglial differentiation. In primary cultured neurons and astrocytes, Nde1 and Ndel1 were found to have different but comparable subcellular localizations. In addition, we have shown for the first time that Nde1 is heterogeneously distributed in cortical astrocytes of human brains. Our data indicate that Nde1 and Ndel1 have distinct but overlapping distribution patterns in mouse brain and cultured nerve cells. They may function differently and therefore their dosage changes may contribute to some aspects of mental disorders.
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Affiliation(s)
- Z Pei
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - B Lang
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom.
| | - Y D Fragoso
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom; Department of Neurology, Medical Faculty, Universidade Metropolitana de Santos, Sao Paulo, Brazil
| | - K D Shearer
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - L Zhao
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - P J A Mccaffery
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - S Shen
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom; Regenerative Medicine Institute, School of Medicine, NUI Galway, Galway, Ireland
| | - Y Q Ding
- Tongji University School of Medicine, 1239 Siping Road, Shanghai 200092, China
| | - C D McCaig
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
| | - J M Collinson
- School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom.
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