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Vuong LT, Mlodzik M. The complex relationship of Wnt-signaling pathways and cilia. Curr Top Dev Biol 2023; 155:95-125. [PMID: 38043953 PMCID: PMC11287783 DOI: 10.1016/bs.ctdb.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Wnt family proteins are secreted glycolipoproteins that signal through multitude of signal transduction pathways. The Wnt-pathways are conserved and critical in all metazoans. They are essential for embryonic development, organogenesis and homeostasis, and associated with many diseases when defective or deregulated. Wnt signaling pathways comprise the canonical Wnt pathway, best known for its stabilization of β-catenin and associated nuclear β-catenin activity in gene regulation, and several non-canonical signaling branches. Wnt-Planar Cell Polarity (PCP) signaling has received the most attention among the non-canonical Wnt pathways. The relationship of cilia to Wnt-signaling is complex. While it was suggested that canonical Wnt signaling requires cilia this notion was always challenged by results suggesting the opposite. Recent developments provide insight and clarification to the relationship of Wnt signaling pathways and cilia. First, it has been now demonstrated that while ciliary proteins, in particular the IFT-A complex, are required for canonical Wnt/β-catenin signaling, the cilium as a structure is not. In contrast, recent work has defined a diverged canonical signaling branch (not affecting β-catenin) to be required for ciliary biogenesis and cilia function. Furthermore, the non-canonical Wnt-PCP pathway does not affect cilia biogenesis per se, but it regulates the position of cilia within cells in many cell types, possibly in all cells where it is active, with cilia being placed near the side of the cell that has the Frizzled-Dishevelled complex. This Wnt/PCP feature is conserved with both centrioles and basal bodies/cilia being positioned accordingly, and it is also used to align mitotic spindles within the Wnt-PCP polarization axis. It also coordinates the alignment of cilia in multiciliated cells. This article addresses these new insights and different links and relationships between cilia and Wnt signaling.
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Affiliation(s)
- Linh T Vuong
- Department of Cell, Developmental, & Regenerative Biology, Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Marek Mlodzik
- Department of Cell, Developmental, & Regenerative Biology, Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
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2
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Li C, Wei JA, Wang D, Luo Z, Pang C, Chen K, Duan J, Chen B, Zhou L, Tissir F, Shi L, So KF, Zhang L, Qu Y. Planar cell polarity protein Celsr2 maintains structural and functional integrity of adult cortical synapses. Prog Neurobiol 2022; 219:102352. [PMID: 36089108 DOI: 10.1016/j.pneurobio.2022.102352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 08/02/2022] [Accepted: 09/05/2022] [Indexed: 11/28/2022]
Abstract
A few developmental genes remain persistently expressed in the adult stage, whilst their potential functions in the mature brain remain underappreciated. Here, we report the unexpected importance of Celsr2, a core Planar cell polarity (PCP) component, in maintaining the structural and functional integrity of adult neocortex. Celsr2 is highly expressed during development and remains expressed in adult neocortex. In vivo synaptic imaging in Celsr2 deficient mice revealed alterations in spinogenesis and reduced neuronal calcium activities, which are associated with impaired motor learning. These phenotypes were accompanied with anomalies of both postsynaptic organization and presynaptic vesicles. Knockout of Celsr2 in adult mice recapitulated those features, further supporting the role of Celsr2 in maintaining the integrity of mature cortex. In sum, our data identify previously unrecognized roles of Celsr2 in the maintenance of synaptic function and motor learning in adulthood.
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Affiliation(s)
- Cunzheng Li
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China
| | - Ji-An Wei
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China
| | - Diyang Wang
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China
| | - Zhihua Luo
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China
| | - Chaoqin Pang
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China
| | - Kai Chen
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China
| | - Juan Duan
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China
| | - Bailing Chen
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China
| | - Libing Zhou
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China; Co-innovation Center of Neuroregeneration, Nantong University, Jiangsu, PR China
| | - Fadel Tissir
- College of Health and Life Sciences, HBKU, Doha, Qatar; Universite catholique de Louvain, Institute of Neuroscience, Brussels, Belgium
| | - Lei Shi
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, Jinan University, Guangzhou 510632, PR China
| | - Kwok-Fai So
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China; Co-innovation Center of Neuroregeneration, Nantong University, Jiangsu, PR China; State Key Laboratory of Brain and Cognitive Science, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou 510515, PR China; Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, PR China; Neuroscience and Neurorehabilitation Institute, University of Health and Rehabilitation Sciences, Qingdao, PR China
| | - Li Zhang
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China; Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou 510515, PR China; Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, PR China; Neuroscience and Neurorehabilitation Institute, University of Health and Rehabilitation Sciences, Qingdao, PR China.
| | - Yibo Qu
- Key Laboratory of CNS Regeneration (Ministry of Education), Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou 510632, PR China; Co-innovation Center of Neuroregeneration, Nantong University, Jiangsu, PR China; Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou 510515, PR China.
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3
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Planar cell polarity and the pathogenesis of Tourette Disorder: New hypotheses and perspectives. Dev Biol 2022; 489:14-20. [DOI: 10.1016/j.ydbio.2022.05.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 05/02/2022] [Accepted: 05/23/2022] [Indexed: 11/20/2022]
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4
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Álvarez-Hernán G, Garrido-Jiménez S, Román ÁC, Carvajal-González JM, Francisco-Morcillo J. Distribution of planar cell polarity proteins in the developing avian retina. Exp Eye Res 2021; 209:108681. [PMID: 34166683 DOI: 10.1016/j.exer.2021.108681] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/03/2021] [Accepted: 06/17/2021] [Indexed: 11/27/2022]
Abstract
Planar cell polarity (PCP) is evolutionary conserved and play a critical role in proper tissue development and function. During central nervous system development, PCP proteins exhibit specific patterns of distribution and are indispensable for axonal growth, dendritogenesis, neuronal migration, and neuronal differentiation. The retina constitutes an excellent model in which to study molecular mechanisms involved in neural development. The analysis of the spatiotemporal expression of PCP proteins in this model constitutes an useful histological approach in order to identify possible roles of these proteins in retinogenesis. Immunohistochemical techniques revealed that Frz6, Celsr1, Vangl1, Pk1, Pk3, and Fat1 were present in emerging axons from recently differentiated ganglion cells in the chicken retina. Except for Vangl1, they were also asymmetrically distributed in differentiated amacrine cells. Pk1 and Pk3 were restricted in the outer nuclear layer to the outer segment of photoreceptors. Vangl1 was also located in the cell somata of Müller glia. Given these findings together, the distribution of PCP proteins in the developing chicken retina suggest essential roles in axonal guidance during early retinogenesis and a possible involvement in the establishment of cell asymmetry and maintenance of retinal cell phenotypes.
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Affiliation(s)
- Guadalupe Álvarez-Hernán
- Área de Biología Celular, Departamento de Anatomía, Biología Celular y Zoología, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | - Sergio Garrido-Jiménez
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | - Ángel Carlos Román
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | - José María Carvajal-González
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain.
| | - Javier Francisco-Morcillo
- Área de Biología Celular, Departamento de Anatomía, Biología Celular y Zoología, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain.
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5
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Shin HY, Han KS, Park HW, Hong YH, Kim Y, Moon HE, Park KW, Park HR, Lee CJ, Lee K, Kim SJ, Heo MS, Park SH, Kim DG, Paek SH. Tumor Spheroids of an Aggressive Form of Central Neurocytoma Have Transit-Amplifying Progenitor Characteristics with Enhanced EGFR and Tumor Stem Cell Signaling. Exp Neurobiol 2021; 30:120-143. [PMID: 33972466 PMCID: PMC8118755 DOI: 10.5607/en21004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 03/26/2021] [Accepted: 03/26/2021] [Indexed: 11/19/2022] Open
Abstract
Central neurocytoma (CN) has been known as a benign neuronal tumor. In rare cases, CN undergoes malignant transformation to glioblastomas (GBM). Here we examined its cellular origin by characterizing differentiation potential and gene expression of CN-spheroids. First, we demonstrate that both CN tissue and cultured primary cells recapitulate the hierarchal cellular composition of subventricular zone (SVZ), which is comprised of neural stem cells (NSCs), transit amplifying progenitors (TAPs), and neuroblasts. We then derived spheroids from CN which displayed EGFR+/MASH+ TAP and BLBP+ radial glial cell (RGC) characteristic, and mitotic neurogenesis and gliogenesis by single spheroids were observed with cycling multipotential cells. CN-spheroids expressed increased levels of pluripotency and tumor stem cell genes such as KLF4 and TPD5L1, when compared to their differentiated cells and human NSCs. Importantly, Gene Set Enrichment Analysis showed that gene sets of GBM-Spheroids, EGFR Signaling, and Packaging of Telomere Ends are enriched in CN-spheroids in comparison with their differentiated cells. We speculate that CN tumor stem cells have TAP and RGC characteristics, and upregulation of EGFR signaling as well as downregulation of eph-ephrin signaling have critical roles in tumorigenesis of CN. And their ephemeral nature of TAPs destined to neuroblasts, might reflect benign nature of CN.
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Affiliation(s)
- Hye Young Shin
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Kyung-Seok Han
- Center for Cognition and Sociality, Institute for Basic Science, Daejeon 34126, Korea
| | - Hyung Woo Park
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Yun Hwa Hong
- Department of Neurophysiology, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Yona Kim
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Hyo Eun Moon
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Kwang Woo Park
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Hye Ran Park
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul 03082, Korea
| | - C Justin Lee
- Center for Cognition and Sociality, Institute for Basic Science, Daejeon 34126, Korea
| | - Kiyoung Lee
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Sang Jeong Kim
- Department of Neurophysiology, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Man Seung Heo
- Smart Healthcare Medical Device Research Center, Samsung Medical Center, Seoul 06351, Korea
| | - Sung-Hye Park
- Department of Pathology, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Dong Gyu Kim
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul 03082, Korea
| | - Sun Ha Paek
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul 03082, Korea.,Ischemic/Hypoxic Disease Institute, Cancer Research Institute, Seoul National University College of Medicine, Seoul 03082, Korea.,Clinical Research Institute, Seoul National University Hospital, Seoul 03082, Korea
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6
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Bischof J, Day ME, Miller KA, LaPalme JV, Levin M. Nervous system and tissue polarity dynamically adapt to new morphologies in planaria. Dev Biol 2020; 467:51-65. [PMID: 32882234 PMCID: PMC10474925 DOI: 10.1016/j.ydbio.2020.08.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/03/2020] [Accepted: 08/14/2020] [Indexed: 02/05/2023]
Abstract
The coordination of tissue-level polarity with organism-level polarity is crucial in development, disease, and regeneration. Here, we characterize a new example of large-scale control of dynamic remodeling of body polarity. Exploiting the flexibility of the body plan in regenerating planarians, we used mirror duplication of the primary axis to show how established tissue-level polarity adapts to new organism-level polarity. Characterization of epithelial planar cell polarity revealed a remarkable reorientation of tissue polarity in double-headed planarians. This reorientation of cilia occurs even following irradiation-induced loss of all stem cells, suggesting independence of the polarity change from the formation of new cells. The presence of the two heads plays an important role in regulating the rate of change in overall polarity. We further present data that suggest that the nervous system itself adapts its polarity to match the new organismal anatomy as revealed by changes in nerve transport driving distinct regenerative outcomes. Thus, in planaria tissue-level polarity can dynamically reorient to match the organism-level anatomical configuration.
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Affiliation(s)
- Johanna Bischof
- Allen Discovery Center at Tufts University, 200 Boston Ave., Suite 4600, Medford, MA, 01915, USA
| | - Margot E Day
- Allen Discovery Center at Tufts University, 200 Boston Ave., Suite 4600, Medford, MA, 01915, USA
| | - Kelsie A Miller
- Allen Discovery Center at Tufts University, 200 Boston Ave., Suite 4600, Medford, MA, 01915, USA
| | - Jennifer V LaPalme
- Allen Discovery Center at Tufts University, 200 Boston Ave., Suite 4600, Medford, MA, 01915, USA
| | - Michael Levin
- Allen Discovery Center at Tufts University, 200 Boston Ave., Suite 4600, Medford, MA, 01915, USA.
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7
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Sun J, Yoon J, Lee M, Hwang YS, Daar IO. Sprouty2 regulates positioning of retinal progenitors through suppressing the Ras/Raf/MAPK pathway. Sci Rep 2020; 10:13752. [PMID: 32792568 PMCID: PMC7426826 DOI: 10.1038/s41598-020-70670-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/31/2020] [Indexed: 11/30/2022] Open
Abstract
Sproutys are negative regulators of the Ras/Raf/MAPK signaling pathway and involved in regulation of organogenesis, differentiation, cell migration and proliferation. Although the function of Sproutys have been extensively studied during embryonic development, their role and mode of action during eye formation in vertebrate embryonic development is still unknown. Here we show that Xenopus sprouty2 is expressed in the optic vesicle at late neurula stage and knockdown of Sprouty2 prevents retinal progenitors from populating the retina, which in turn gives rise to small eyes. In the absence of Sprouty2, progenitor cell population of the retina can be restored by blocking the MAPK signaling pathway through overexpression of DN-Ras or DN-Raf. In contrast, activation of the MAPK pathway through overexpression of a constitutively active form of c-Raf (ca-Raf) inhibits progenitor population of the retina, similar to the Sprouty2 loss-of-function phenotype. Moreover, we present evidence that the retinal defect observed in Sprouty2 morphants is attributed to the failure of proper movement of retinal progenitors into the optic vesicle, rather than an effect on progenitor cell survival. These results suggest that Sprouty2 is required for the positioning of retinal progenitors within the optic vesicle through suppressing Ras/Raf/MAPK signaling pathway.
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Affiliation(s)
- Jian Sun
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, MD, 21702, USA
| | - Jaeho Yoon
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, MD, 21702, USA
| | - Moonsup Lee
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, MD, 21702, USA
| | - Yoo-Seok Hwang
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, MD, 21702, USA
| | - Ira O Daar
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, MD, 21702, USA.
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8
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Shin J, Ma S, Hofer E, Patel Y, Vosberg DE, Tilley S, Roshchupkin GV, Sousa AMM, Jian X, Gottesman R, Mosley TH, Fornage M, Saba Y, Pirpamer L, Schmidt R, Schmidt H, Carrion-Castillo A, Crivello F, Mazoyer B, Bis JC, Li S, Yang Q, Luciano M, Karama S, Lewis L, Bastin ME, Harris MA, Wardlaw JM, Deary IE, Scholz M, Loeffler M, Witte AV, Beyer F, Villringer A, Armstrong NJ, Mather KA, Ames D, Jiang J, Kwok JB, Schofield PR, Thalamuthu A, Trollor JN, Wright MJ, Brodaty H, Wen W, Sachdev PS, Terzikhan N, Evans TE, Adams HHHH, Ikram MA, Frenzel S, van der Auwera-Palitschka S, Wittfeld K, Bülow R, Grabe HJ, Tzourio C, Mishra A, Maingault S, Debette S, Gillespie NA, Franz CE, Kremen WS, Ding L, Jahanshad N, Sestan N, Pausova Z, Seshadri S, Paus T. Global and Regional Development of the Human Cerebral Cortex: Molecular Architecture and Occupational Aptitudes. Cereb Cortex 2020; 30:4121-4139. [PMID: 32198502 PMCID: PMC7947185 DOI: 10.1093/cercor/bhaa035] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
We have carried out meta-analyses of genome-wide association studies (GWAS) (n = 23 784) of the first two principal components (PCs) that group together cortical regions with shared variance in their surface area. PC1 (global) captured variations of most regions, whereas PC2 (visual) was specific to the primary and secondary visual cortices. We identified a total of 18 (PC1) and 17 (PC2) independent loci, which were replicated in another 25 746 individuals. The loci of the global PC1 included those associated previously with intracranial volume and/or general cognitive function, such as MAPT and IGF2BP1. The loci of the visual PC2 included DAAM1, a key player in the planar-cell-polarity pathway. We then tested associations with occupational aptitudes and, as predicted, found that the global PC1 was associated with General Learning Ability, and the visual PC2 was associated with the Form Perception aptitude. These results suggest that interindividual variations in global and regional development of the human cerebral cortex (and its molecular architecture) cascade-albeit in a very limited manner-to behaviors as complex as the choice of one's occupation.
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Affiliation(s)
- Jean Shin
- The Hospital for Sick Children, University of Toronto, Toronto, M5G 0A4 ON, M5G 0A4, Canada
- Holland Bloorview Kids Rehabilitation Hospital, Bloorview Research Institute, University of Toronto, Toronto, M4G 1R8 ON, Canada
| | - Shaojie Ma
- Department of Genetics, Yale University School of Medicine, New Haven, 06510 CT, USA
- Department of Neuroscience, Yale University School of Medicine, New Haven, 06510 CT, USA
| | - Edith Hofer
- Clinical Division of Neurogeriatrics, Department of Neurology, Medical University of Graz, 8036 Graz, Austria
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, 8036 Graz, Austria
| | - Yash Patel
- Holland Bloorview Kids Rehabilitation Hospital, Bloorview Research Institute, University of Toronto, Toronto, M4G 1R8 ON, Canada
| | - Daniel E Vosberg
- Holland Bloorview Kids Rehabilitation Hospital, Bloorview Research Institute, University of Toronto, Toronto, M4G 1R8 ON, Canada
| | - Steven Tilley
- Holland Bloorview Kids Rehabilitation Hospital, Bloorview Research Institute, University of Toronto, Toronto, M4G 1R8 ON, Canada
| | - Gennady V Roshchupkin
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, 3015 Rotterdam, The Netherlands
- Department of Medical Informatics, Erasmus MC, 3015 Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus University Medical Center, 3015 Rotterdam, The Netherlands
| | - André M M Sousa
- Department of Neuroscience, Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, 06510 CT, USA
| | - Xueqiu Jian
- Institute of Molecular Medicine and Human Genetics Center, University of Texas Health Science Center at Houston, 77030 Houston, 77030 TX, USA
| | | | - Thomas H Mosley
- University of Mississippi Medical Center, Jackson, 39216 MS, USA
| | - Myriam Fornage
- Institute of Molecular Medicine and Human Genetics Center, University of Texas Health Science Center at Houston, 77030 Houston, 77030 TX, USA
| | - Yasaman Saba
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, 8036 Graz, Austria
| | - Lukas Pirpamer
- Clinical Division of Neurogeriatrics, Department of Neurology, Medical University of Graz, 8036 Graz, Austria
| | - Reinhold Schmidt
- Clinical Division of Neurogeriatrics, Department of Neurology, Medical University of Graz, 8036 Graz, Austria
| | - Helena Schmidt
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, 8036 Graz, Austria
| | - Amaia Carrion-Castillo
- Language and Genetics Department, Max Planck Institute for Psycholinguistics, 6525 Nijmegen, The Netherlands
| | - Fabrice Crivello
- Groupe d’Imagerie Neurofonctionnelle, Institut des Maladies Neurodégénératives, Centre National de la Recherche Scientifique, Commissariat à l’Energie Atomique, et Université de Bordeaux, F-33000 Bordeaux, France
| | - Bernard Mazoyer
- Groupe d’Imagerie Neurofonctionnelle, Institut des Maladies Neurodégénératives, Centre National de la Recherche Scientifique, Commissariat à l’Energie Atomique, et Université de Bordeaux, F-33000 Bordeaux, France
| | - Joshua C Bis
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, 98101 WA, USA
| | - Shuo Li
- Department of Biostatistics, Boston University School of Public Health, Boston, 02118, MA, USA
| | - Qiong Yang
- Department of Biostatistics, Boston University School of Public Health, Boston, 02118, MA, USA
| | - Michelle Luciano
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, EH8 9YL Edinburgh, UK
- Department of Psychology, University of Edinburgh, EH8 9JZ Edinburgh, UK
| | - Sherif Karama
- Montreal Neurological Institute, McGill University, H3A 2B4 Montreal, QC, Canada
| | - Lindsay Lewis
- Montreal Neurological Institute, McGill University, H3A 2B4 Montreal, QC, Canada
| | - Mark E Bastin
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, EH8 9YL Edinburgh, UK
- Centre for Clinical Brain Sciences, University of Edinburgh, EH8 9YL Edinburgh, UK
| | - Mathew A Harris
- Centre for Clinical Brain Sciences, University of Edinburgh, EH8 9YL Edinburgh, UK
- Division of Psychiatry, University of Edinburgh, EH8 9JZ Edinburgh, UK
| | - Joanna M Wardlaw
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, EH8 9YL Edinburgh, UK
- UK Dementia Research Institute, University of Edinburgh, EH8 9JZ Edinburgh, UK
| | - Ian E Deary
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, EH8 9YL Edinburgh, UK
- Department of Psychology, University of Edinburgh, EH8 9JZ Edinburgh, UK
| | - Markus Scholz
- Institute for Medical Informatics, Statistics and Epidemiology, University of Leipzig, 04109 Leipzig, Germany
- LIFE Research Center for Civilization Diseases, 04103 Leipzig, Germany
| | - Markus Loeffler
- Institute for Medical Informatics, Statistics and Epidemiology, University of Leipzig, 04109 Leipzig, Germany
- LIFE Research Center for Civilization Diseases, 04103 Leipzig, Germany
| | - A Veronica Witte
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany
- Faculty of Medicine, CRC 1052 Obesity Mechanisms, University of Leipzig, 04109 Leipzig, Germany
- Day Clinic for Cognitive Neurology, University Hospital Leipzig, 04103 Leipzig, Germany
| | - Frauke Beyer
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany
- Faculty of Medicine, CRC 1052 Obesity Mechanisms, University of Leipzig, 04109 Leipzig, Germany
| | - Arno Villringer
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany
- Faculty of Medicine, CRC 1052 Obesity Mechanisms, University of Leipzig, 04109 Leipzig, Germany
- Day Clinic for Cognitive Neurology, University Hospital Leipzig, 04103 Leipzig, Germany
| | - Nicola J Armstrong
- Mathematics and Statistics, Murdoch University, 6150 Perth, WA, Australia
| | - Karen A Mather
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, 2052 Sydney, NSW, Australia
- Neuroscience Research Australia, 2031 Sydney, NSW, Australia
| | - David Ames
- National Ageing Research Institute, Royal Melbourne Hospital, 3052 Melbourne, VIC, Australia
- Academic Unit for Psychiatry of Old Age, St. Vincent's Health, The University of Melbourne, 3010 Melbourne, VIC, Australia
| | - Jiyang Jiang
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, 2052 Sydney, NSW, Australia
| | - John B Kwok
- Brain and Mind Centre, The University of Sydney, 2050 Sydney, NSW, Australia
- School of Medical Sciences, University of New South Wales, 2052 Sydney, NSW, Australia
| | - Peter R Schofield
- Neuroscience Research Australia, 2031 Sydney, NSW, Australia
- School of Medical Sciences, University of New South Wales, 2052 Sydney, NSW, Australia
| | - Anbupalam Thalamuthu
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, 2052 Sydney, NSW, Australia
| | - Julian N Trollor
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, 2052 Sydney, NSW, Australia
- Department of Developmental Disability Neuropsychiatry, School of Psychiatry, University of New South Wales, 2031 Sydney, NSW, Australia
| | - Margaret J Wright
- Queensland Brain Institute, The University of Queensland, 4072 St Lucia, QLD, Australia
- Centre for Advanced Imaging, The University of Queensland, 4072 St Lucia, QLD, Australia
| | - Henry Brodaty
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, 2052 Sydney, NSW, Australia
- Dementia Centre for Research Collaboration, University of New South Wales, 2052 Sydney, NSW, Australia
| | - Wei Wen
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, 2052 Sydney, NSW, Australia
| | - Perminder S Sachdev
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, 2052 Sydney, NSW, Australia
- Neuropsychiatric Institute, Prince of Wales Hospital, 2031 Sydney, NSW, Australia
| | - Natalie Terzikhan
- Department of Epidemiology, Erasmus University Medical Center, 3015 Rotterdam, The Netherlands
| | - Tavia E Evans
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, 3015 Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus University Medical Center, 3015 Rotterdam, The Netherlands
| | - Hieab H H H Adams
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, 3015 Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus University Medical Center, 3015 Rotterdam, The Netherlands
| | - M Arfan Ikram
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, 3015 Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus University Medical Center, 3015 Rotterdam, The Netherlands
- Department of Neurology, Erasmus MC University Medical Centre, 3015 Rotterdam, The Netherlands
| | - Stefan Frenzel
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, 17489 Greifswald, Germany
| | - Sandra van der Auwera-Palitschka
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, 17489 Greifswald, Germany
- German Center for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, 37075, Germany
| | - Katharina Wittfeld
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, 17489 Greifswald, Germany
- German Center for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, 37075, Germany
| | - Robin Bülow
- Institute for Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, 17489 Greifswald, Germany
| | - Hans Jörgen Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, 17489 Greifswald, Germany
- German Center for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, 37075, Germany
| | - Christophe Tzourio
- Inserm, Bordeaux Population Health Research Center, University of Bordeaux, Team VINTAGE, UMR 1219, F-33000 Bordeaux, France
- Department of Neurology, CHU de Bordeaux, F-33000 Bordeaux, France
| | - Aniket Mishra
- Inserm, Bordeaux Population Health Research Center, University of Bordeaux, Team VINTAGE, UMR 1219, F-33000 Bordeaux, France
| | - Sophie Maingault
- Institut des Maladies Neurodégénratives, UMR 5293, CEA, CNRS, University of Bordeaux, Ubordeaux, F-33000 Bordeaux, France
| | - Stephanie Debette
- Inserm, Bordeaux Population Health Research Center, University of Bordeaux, Team VINTAGE, UMR 1219, F-33000 Bordeaux, France
- Department of Neurology, CHU de Bordeaux, F-33000 Bordeaux, France
- Department of Neurology, Boston University School of Medicine, Boston, 02118 MA, USA
| | - Nathan A Gillespie
- Virginia Institute for Psychiatric and Behavioural Genetics, Virginia Commonwealth University, Richmond, 23284 VA, USA
| | - Carol E Franz
- Department of Psychiatry, University of California, San Diego, 92093 CA, USA
- Center for Behavior Genetics of Aging, University of California, San Diego, 92093 CA, USA
| | - William S Kremen
- Department of Psychiatry, University of California, San Diego, 92093 CA, USA
- Center for Behavior Genetics of Aging, University of California, San Diego, 92093 CA, USA
- VA San Diego Center of Excellence for Stress and Mental Health, San Diego, 92161 CA, USA
| | - Linda Ding
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, University of Southern California, Los Angeles, 90033 CA, USA
| | - Neda Jahanshad
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, University of Southern California, Los Angeles, 90033 CA, USA
| | | | - Nenad Sestan
- Department of Genetics, Yale University School of Medicine, New Haven, 06510 CT, USA
- Department of Neuroscience, Yale University School of Medicine, New Haven, 06510 CT, USA
| | - Zdenka Pausova
- The Hospital for Sick Children, University of Toronto, Toronto, M5G 0A4 ON, M5G 0A4, Canada
- Department of Physiology, University of Toronto, Toronto, M5S 1A8 ON, Canada
- Department of Nutritional Sciences, University of Toronto, Toronto, M5S 1A8 ON, Canada
| | - Sudha Seshadri
- Department of Neurology, Boston University School of Medicine, Boston, 02118 MA, USA
- Department of Epidemiology and Biostatistics, Glenn Biggs Institute for Alzheimer’s and Neurodegenerative Diseases, UT Health San Antonio, San Antonio, 78229 TX, USA
| | - Tomas Paus
- Holland Bloorview Kids Rehabilitation Hospital, Bloorview Research Institute, University of Toronto, Toronto, M4G 1R8 ON, Canada
- Department of Psychology, University of Toronto, Toronto, M5S 3G3 ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, M5T 1R8 ON, Canada
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9
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Hakanen J, Ruiz-Reig N, Tissir F. Linking Cell Polarity to Cortical Development and Malformations. Front Cell Neurosci 2019; 13:244. [PMID: 31213986 PMCID: PMC6558068 DOI: 10.3389/fncel.2019.00244] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 05/16/2019] [Indexed: 01/23/2023] Open
Abstract
Cell polarity refers to the asymmetric distribution of signaling molecules, cellular organelles, and cytoskeleton in a cell. Neural progenitors and neurons are highly polarized cells in which the cell membrane and cytoplasmic components are compartmentalized into distinct functional domains in response to internal and external cues that coordinate polarity and behavior during development and disease. In neural progenitor cells, polarity has a prominent impact on cell shape and coordinate several processes such as adhesion, division, and fate determination. Polarity also accompanies a neuron from the beginning until the end of its life. It is essential for development and later functionality of neuronal circuitries. During development, polarity governs transitions between multipolar and bipolar during migration of postmitotic neurons, and directs the specification and directional growth of axons. Once reaching final positions in cortical layers, neurons form dendrites which become compartmentalized to ensure proper establishment of neuronal connections and signaling. Changes in neuronal polarity induce signaling cascades that regulate cytoskeletal changes, as well as mRNA, protein, and vesicle trafficking, required for synapses to form and function. Hence, defects in establishing and maintaining cell polarity are associated with several neural disorders such as microcephaly, lissencephaly, schizophrenia, autism, and epilepsy. In this review we summarize the role of polarity genes in cortical development and emphasize the relationship between polarity dysfunctions and cortical malformations.
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Affiliation(s)
- Janne Hakanen
- Université catholique de Louvain, Institute of Neuroscience, Developmental Neurobiology, Brussels, Belgium
| | - Nuria Ruiz-Reig
- Université catholique de Louvain, Institute of Neuroscience, Developmental Neurobiology, Brussels, Belgium
| | - Fadel Tissir
- Université catholique de Louvain, Institute of Neuroscience, Developmental Neurobiology, Brussels, Belgium
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10
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Hilal ML, Moreau MM, Racca C, Pinheiro VL, Piguel NH, Santoni MJ, Dos Santos Carvalho S, Blanc JM, Abada YSK, Peyroutou R, Medina C, Doat H, Papouin T, Vuillard L, Borg JP, Rachel R, Panatier A, Montcouquiol M, Oliet SHR, Sans N. Activity-Dependent Neuroplasticity Induced by an Enriched Environment Reverses Cognitive Deficits in Scribble Deficient Mouse. Cereb Cortex 2018; 27:5635-5651. [PMID: 28968740 DOI: 10.1093/cercor/bhw333] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Indexed: 12/31/2022] Open
Abstract
Planar cell polarity (PCP) signaling is well known to play a critical role during prenatal brain development; whether it plays specific roles at postnatal stages remains rather unknown. Here, we investigated the role of a key PCP-associated gene scrib in CA1 hippocampal structure and function at postnatal stages. We found that Scrib is required for learning and memory consolidation in the Morris water maze as well as synaptic maturation and NMDAR-dependent bidirectional plasticity. Furthermore, we unveiled a direct molecular interaction between Scrib and PP1/PP2A phosphatases whose levels were decreased in postsynaptic density of conditional knock-out mice. Remarkably, exposure to enriched environment (EE) preserved memory formation in CaMK-Scrib-/- mice by recovering synaptic plasticity and maturation. Thus, Scrib is required for synaptic function involved in memory formation and EE has beneficiary therapeutic effects. Our results demonstrate a distinct new role for a PCP-associated protein, beyond embryonic development, in cognitive functions during adulthood.
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Affiliation(s)
- Muna L Hilal
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Maité M Moreau
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Claudia Racca
- Institute of Neuroscience, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Vera L Pinheiro
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Nicolas H Piguel
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Marie-Josée Santoni
- CRCM, INSERM U1068, F-13009 Marseille, France.,CRCM, CNRS UMR7258, F-13009 Marseille, France.,Institut Paoli-Calmettes, F-13009 Marseille, France.,Aix-Marseille Université, F-13007 Marseille, France
| | - Steve Dos Santos Carvalho
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Jean-Michel Blanc
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,BioXtal Structural Biology Unit, Campus de Luminy, F-13288 Marseille, France.,University of Bordeaux, Plateforme de Biochimie et de Biophysique des protéines, FR Bordeaux Neurocampus, F-33000 Bordeaux, France
| | - Yah-Se K Abada
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Ronan Peyroutou
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Chantal Medina
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Hélène Doat
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Thomas Papouin
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Laurent Vuillard
- BioXtal Structural Biology Unit, Campus de Luminy, F-13288 Marseille, France
| | - Jean-Paul Borg
- CRCM, INSERM U1068, F-13009 Marseille, France.,CRCM, CNRS UMR7258, F-13009 Marseille, France.,Institut Paoli-Calmettes, F-13009 Marseille, France.,Aix-Marseille Université, F-13007 Marseille, France
| | - Rivka Rachel
- Mouse Cancer Genetics Program, National Cancer Institute-Frederick, Frederick, Maryland 21702, USA
| | - Aude Panatier
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Mireille Montcouquiol
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Stéphane H R Oliet
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
| | - Nathalie Sans
- INSERM, Neurocentre Magendie, Unité U1215, F-33000 Bordeaux, France.,University of Bordeaux, Neurocentre Magendie, U1215, F-33000 Bordeaux, France
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11
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Mazel T. Crosstalk of cell polarity signaling pathways. PROTOPLASMA 2017; 254:1241-1258. [PMID: 28293820 DOI: 10.1007/s00709-017-1075-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/02/2017] [Indexed: 06/06/2023]
Abstract
Cell polarity, the asymmetric organization of cellular components along one or multiple axes, is present in most cells. From budding yeast cell polarization induced by pheromone signaling, oocyte polarization at fertilization to polarized epithelia and neuronal cells in multicellular organisms, similar mechanisms are used to determine cell polarity. Crucial role in this process is played by signaling lipid molecules, small Rho family GTPases and Par proteins. All these signaling circuits finally govern the cytoskeleton, which is responsible for oriented cell migration, cell shape changes, and polarized membrane and organelle trafficking. Thus, typically in the process of cell polarization, most cellular constituents become polarized, including plasma membrane lipid composition, ion concentrations, membrane receptors, and proteins in general, mRNA, vesicle trafficking, or intracellular organelles. This review gives a brief overview how these systems talk to each other both during initial symmetry breaking and within the signaling feedback loop mechanisms used to preserve the polarized state.
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Affiliation(s)
- Tomáš Mazel
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Albertov 4, 128 00, Prague 2, Czech Republic.
- State Institute for Drug Control, Šrobárova 48, 100 41, Prague 10, Czech Republic.
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12
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Chu CW, Ossipova O, Ioannou A, Sokol SY. Prickle3 synergizes with Wtip to regulate basal body organization and cilia growth. Sci Rep 2016; 6:24104. [PMID: 27062996 PMCID: PMC4827067 DOI: 10.1038/srep24104] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 03/21/2016] [Indexed: 12/21/2022] Open
Abstract
PCP proteins maintain planar polarity in many epithelial tissues and have been implicated in cilia development in vertebrate embryos. In this study we examine Prickle3 (Pk3), a vertebrate homologue of Drosophila Prickle, in Xenopus gastrocoel roof plate (GRP). GRP is a tissue equivalent to the mouse node, in which cilia-generated flow promotes left-right patterning. We show that Pk3 is enriched at the basal body of GRP cells but is recruited by Vangl2 to anterior cell borders. Interference with Pk3 function disrupted the anterior polarization of endogenous Vangl2 and the posterior localization of cilia in GRP cells, demonstrating its role in PCP. Strikingly, in cells with reduced Pk3 activity, cilia growth was inhibited and γ-tubulin and Nedd1 no longer associated with the basal body, suggesting that Pk3 has a novel function in basal body organization. Mechanistically, this function of Pk3 may involve Wilms tumor protein 1-interacting protein (Wtip), which physically associates with and cooperates with Pk3 to regulate ciliogenesis. We propose that, in addition to cell polarity, PCP components control basal body organization and function.
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Affiliation(s)
- Chih-Wen Chu
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Olga Ossipova
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Andriani Ioannou
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sergei Y Sokol
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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13
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Kannan S, Nicola Z, Overall RW, Ichwan M, Ramírez-Rodríguez G, N. Grzyb A, Patone G, Saar K, Hübner N, Kempermann G. Systems Genetics Analysis of a Recombinant Inbred Mouse Cell Culture Panel Reveals Wnt Pathway Member Lrp6 as a Regulator of Adult Hippocampal Precursor Cell Proliferation. Stem Cells 2016; 34:674-84. [DOI: 10.1002/stem.2313] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 09/28/2015] [Accepted: 10/25/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Suresh Kannan
- CRTD-Center for Regenerative Therapies Dresden; Technische Universität Dresden; Dresden Germany
- Department of Biomedical Sciences; Sri Ramachandra University; Porur Chennai India
| | - Zeina Nicola
- German Center for Neurodegenerative Diseases (DZNE) Dresden; Dresden Germany
| | - Rupert W. Overall
- CRTD-Center for Regenerative Therapies Dresden; Technische Universität Dresden; Dresden Germany
| | - Muhammad Ichwan
- CRTD-Center for Regenerative Therapies Dresden; Technische Universität Dresden; Dresden Germany
| | - Gerardo Ramírez-Rodríguez
- Laboratory of Neurogenesis, Division of Clinical Investigations; National Institute of Psychiatry “Ramón de la Fuente Muñiz; ” México D.F. México
| | - Anna N. Grzyb
- German Center for Neurodegenerative Diseases (DZNE) Dresden; Dresden Germany
| | | | - Kathrin Saar
- Max-Delbrück Center for Molecular Medicine; Berlin Germany
| | - Norbert Hübner
- Max-Delbrück Center for Molecular Medicine; Berlin Germany
| | - Gerd Kempermann
- CRTD-Center for Regenerative Therapies Dresden; Technische Universität Dresden; Dresden Germany
- German Center for Neurodegenerative Diseases (DZNE) Dresden; Dresden Germany
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14
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The Formin DAAM Functions as Molecular Effector of the Planar Cell Polarity Pathway during Axonal Development in Drosophila. J Neurosci 2015; 35:10154-67. [PMID: 26180192 DOI: 10.1523/jneurosci.3708-14.2015] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Recent studies established that the planar cell polarity (PCP) pathway is critical for various aspects of nervous system development and function, including axonal guidance. Although it seems clear that PCP signaling regulates actin dynamics, the mechanisms through which this occurs remain elusive. Here, we establish a functional link between the PCP system and one specific actin regulator, the formin DAAM, which has previously been shown to be required for embryonic axonal morphogenesis and filopodia formation in the growth cone. We show that dDAAM also plays a pivotal role during axonal growth and guidance in the adult Drosophila mushroom body, a brain center for learning and memory. By using a combination of genetic and biochemical assays, we demonstrate that Wnt5 and the PCP signaling proteins Frizzled, Strabismus, and Dishevelled act in concert with the small GTPase Rac1 to activate the actin assembly functions of dDAAM essential for correct targeting of mushroom body axons. Collectively, these data suggest that dDAAM is used as a major molecular effector of the PCP guidance pathway. By uncovering a signaling system from the Wnt5 guidance cue to an actin assembly factor, we propose that the Wnt5/PCP navigation system is linked by dDAAM to the regulation of the growth cone actin cytoskeleton, and thereby growth cone behavior, in a direct way.
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15
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Chai G, Goffinet AM, Tissir F. Celsr3 and Fzd3 in axon guidance. Int J Biochem Cell Biol 2015; 64:11-4. [PMID: 25813877 DOI: 10.1016/j.biocel.2015.03.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 03/10/2015] [Accepted: 03/16/2015] [Indexed: 12/21/2022]
Abstract
The assembly of functional neuronal circuits depends on the correct wiring of axons and dendrites. To reach their targets, axons are guided by a variety of extracellular guidance cues, including Netrins, Ephrins, Semaphorins and Slits. Corresponding receptors in the growth cone, the dynamic structure at the tip of the growing axon, sense and integrate these positional signals, and activate downstream effectors to regulate cytoskeletal organization. In addition to the four canonical families of axon guidance cues mentioned above, some proteins that regulate planar cell polarity were recently found to be critical for axon guidance. The seven-transmembrane domain receptors Celsr3 and Fzd3, in particular, control the development of most longitudinal tracts in the central nervous system, and axon navigation in the peripheral, sympathetic and enteric nervous systems. Despite their unequivocally important role, however, underlying molecular mechanisms remain elusive. We do not know which extracellular ligands they recognize, whether they have co-receptors in the growth cone, and what their downstream effectors are. Here, we review some recent advances and discuss future trends in this emerging field.
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Affiliation(s)
- Guoliang Chai
- Institute of Neuroscience, Université catholique de Louvain, 73 Avenue Mounier, B1.73.16, Brussels 1200, Belgium
| | - Andre M Goffinet
- Institute of Neuroscience, Université catholique de Louvain, 73 Avenue Mounier, B1.73.16, Brussels 1200, Belgium.
| | - Fadel Tissir
- Institute of Neuroscience, Université catholique de Louvain, 73 Avenue Mounier, B1.73.16, Brussels 1200, Belgium.
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16
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Asymmetry of VANGL2 in migrating lymphocytes as a tool to monitor activity of the mammalian WNT/planar cell polarity pathway. Cell Commun Signal 2015; 13:2. [PMID: 25627785 PMCID: PMC4314808 DOI: 10.1186/s12964-014-0079-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 12/17/2014] [Indexed: 11/29/2022] Open
Abstract
Background The WNT/planar-cell-polarity (PCP) pathway is a key regulator of cell polarity and directional cell movements. Core PCP proteins such as Van Gogh-like2 (VANGL2) are evolutionarily highly conserved; however, the mammalian PCP machinery is still poorly understood mainly due to lack of suitable models and quantitative methodology. WNT/PCP has been implicated in many human diseases with the most distinguished positive role in the metastatic process, which accounts for more than 90% of cancer related deaths, and presents therefore an attractive target for pharmacological interventions. However, cellular assays for the assessment of PCP signaling, which would allow a more detailed mechanistic analysis of PCP function and possibly also high throughput screening for chemical compounds targeting mammalian PCP signaling, are still missing. Results Here we describe a mammalian cell culture model, which correlates B lymphocyte migration of patient-derived MEC1 cells and asymmetric localization of fluorescently-tagged VANGL2. We show by live cell imaging that PCP proteins are polarized in MEC1 cells and that VANGL2 polarization is controlled by the same mechanism as in tissues i.e. it is dependent on casein kinase 1 activity. In addition, destruction of the actin cytoskeleton leads to migratory arrest and cell rounding while VANGL2-EGFP remains polarized suggesting that active PCP signaling visualized by polarized distribution of VANGL2 is a cause for and not a consequence of the asymmetric shape of a migrating cell. Conclusions The presented imaging-based methodology allows overcoming limitations of earlier approaches to study the mammalian WNT/PCP pathway, which required in vivo models and analysis of complex tissues. Our system investigating PCP-like signaling on a single-cell level thus opens new possibilities for screening of compounds, which control asymmetric distribution of proteins in the PCP pathway. Electronic supplementary material The online version of this article (doi:10.1186/s12964-014-0079-1) contains supplementary material, which is available to authorized users.
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17
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Organisti C, Hein I, Grunwald Kadow IC, Suzuki T. Flamingo, a seven-pass transmembrane cadherin, cooperates with Netrin/Frazzled in Drosophila midline guidance. Genes Cells 2014; 20:50-67. [PMID: 25440577 DOI: 10.1111/gtc.12202] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Accepted: 10/01/2014] [Indexed: 01/31/2023]
Abstract
During central nervous system development, several guidance cues and receptors, as well as cell adhesion molecules, are required for guiding axons across the midline and along the anterior-posterior axis. In Drosophila, commissural axons sense the midline attractants Netrin A and B (Net) through Frazzled (Fra) receptors. Despite their importance, lack of Net or fra affects only some commissures, suggesting that additional molecules can fulfill this function. Recently, planar cell polarity (PCP) proteins have been implicated in midline axon guidance in both vertebrate and invertebrate systems. Here, we report that the atypical cadherin and PCP molecule Flamingo/Starry night (Fmi/Stan) acts jointly with Net/Fra signaling during midline development. Additional removal of fmi strongly increases the guidance defects in Net/fra mutants. Rescue and domain deletion experiments suggest that Fmi signaling facilitates commissural pathfinding potentially by mediating axonal fasciculation in a partly homophilic manner. Altogether, our results indicate that contact-mediated cell adhesion via Fmi acts in addition to the Net/Fra guidance system during axon pathfinding across the midline, underlining the importance of PCP molecules during vertebrates and invertebrates midline development.
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Affiliation(s)
- Cristina Organisti
- Max Planck Institute of Neurobiology, Sensory Neurogenetics Research Group, Am Klopferspitz 18, Martinsried, 82152, Germany
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18
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Celsr3 is required in motor neurons to steer their axons in the hindlimb. Nat Neurosci 2014; 17:1171-9. [DOI: 10.1038/nn.3784] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 07/15/2014] [Indexed: 12/12/2022]
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19
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Abstract
In the nervous system, cilia dysfunction perturbs the circulation of the cerebrospinal fluid, thus affecting neurogenesis and brain homeostasis. A role for planar cell polarity (PCP) signaling in the orientation of cilia (rotational polarity) and ciliogenesis is established. However, whether and how PCP regulates cilia positioning in the apical domain (translational polarity) in radial progenitors and ependymal cells remain unclear. By analysis of a large panel of mutant mice, we show that two PCP signals are operating in ciliated cells. The first signal, controlled by cadherin, EGF-like, laminin G-like, seven-pass, G-type receptor (Celsr) 2, Celsr3, Frizzled3 (Fzd3) and Van Gogh like2 (Vangl2) organizes multicilia in individual cells (single-cell polarity), whereas the second signal, governed by Celsr1, Fzd3, and Vangl2, coordinates polarity between cells in both radial progenitors and ependymal cells (tissue polarity). Loss of either of these signals is associated with specific defects in the cytoskeleton. Our data reveal unreported functions of PCP and provide an integrated view of planar polarization of the brain ciliated cells.
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20
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Zakaria S, Mao Y, Kuta A, de Sousa CF, Gaufo GO, McNeill H, Hindges R, Guthrie S, Irvine KD, Francis-West PH. Regulation of neuronal migration by Dchs1-Fat4 planar cell polarity. Curr Biol 2014; 24:1620-1627. [PMID: 24998526 PMCID: PMC4193925 DOI: 10.1016/j.cub.2014.05.067] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/14/2014] [Accepted: 05/23/2014] [Indexed: 01/02/2023]
Abstract
Planar cell polarity (PCP) describes the polarization of cell structures and behaviors within the plane of a tissue. PCP is essential for the generation of tissue architecture during embryogenesis and for postnatal growth and tissue repair, yet how it is oriented to coordinate cell polarity remains poorly understood [1]. In Drosophila, PCP is mediated via the Frizzled-Flamingo (Fz-PCP) and Dachsous-Fat (Fat-PCP) pathways [1-3]. Fz-PCP is conserved in vertebrates, but an understanding in vertebrates of whether and how Fat-PCP polarizes cells, and its relationship to Fz-PCP signaling, is lacking. Mutations in human FAT4 and DCHS1, key components of Fat-PCP signaling, cause Van Maldergem syndrome, characterized by severe neuronal abnormalities indicative of altered neuronal migration [4]. Here, we investigate the role and mechanisms of Fat-PCP during neuronal migration using the murine facial branchiomotor (FBM) neurons as a model. We find that Fat4 and Dchs1 are expressed in complementary gradients and are required for the collective tangential migration of FBM neurons and for their PCP. Fat4 and Dchs1 are required intrinsically within the FBM neurons and extrinsically within the neuroepithelium. Remarkably, Fat-PCP and Fz-PCP regulate FBM neuron migration along orthogonal axes. Disruption of the Dchs1 gradients by mosaic inactivation of Dchs1 alters FBM neuron polarity and migration. This study implies that PCP in vertebrates can be regulated via gradients of Fat4 and Dchs1 expression, which establish intracellular polarity across FBM cells during their migration. Our results also identify Fat-PCP as a novel neuronal guidance system and reveal that Fat-PCP and Fz-PCP can act along orthogonal axes.
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Affiliation(s)
- Sana Zakaria
- Department of Craniofacial Development and Stem Cell Biology, King's College London, Dental Institute, Guy's Tower, Floor 27, London Bridge, London, SE1 9RT, UK
| | - Yaopan Mao
- Howard Hughes Medical Institute, Waksman Institute and Department of Molecular Biology and Biochemistry, Rutgers The State University of New Jersey, Piscataway NJ 08854, USA
| | - Anna Kuta
- Department of Craniofacial Development and Stem Cell Biology, King's College London, Dental Institute, Guy's Tower, Floor 27, London Bridge, London, SE1 9RT, UK
| | - Catia Ferreira de Sousa
- Department of Craniofacial Development and Stem Cell Biology, King's College London, Dental Institute, Guy's Tower, Floor 27, London Bridge, London, SE1 9RT, UK
| | - Gary O Gaufo
- Department of Biology, The University of Texas at San Antonio, One UTSA circle, San Antonio, Texas, 78249 USA
| | - Helen McNeill
- The Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, M5G 1X5, Canada
| | - Robert Hindges
- MRC Centre for Developmental Neurobiology, 4th Floor New Hunt's House, King's College, Guy's Campus, London SE1 1UL, UK
| | - Sarah Guthrie
- MRC Centre for Developmental Neurobiology, 4th Floor New Hunt's House, King's College, Guy's Campus, London SE1 1UL, UK
| | - Kenneth D Irvine
- Howard Hughes Medical Institute, Waksman Institute and Department of Molecular Biology and Biochemistry, Rutgers The State University of New Jersey, Piscataway NJ 08854, USA
| | - Philippa H Francis-West
- Department of Craniofacial Development and Stem Cell Biology, King's College London, Dental Institute, Guy's Tower, Floor 27, London Bridge, London, SE1 9RT, UK
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Feng J, Han Q, Zhou L. Planar cell polarity genes, Celsr1-3, in neural development. Neurosci Bull 2014; 28:309-15. [PMID: 22622831 DOI: 10.1007/s12264-012-1232-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
flamingo is among the 'core' planar cell-polarity genes, protein of which belongs to a unique cadherin subfamily. In contrast to the classic cadherins, composed of several extracellular cadherin repeats, one transmembrane domain and one cytoplasmic segment linked to catenin binding, Drosophila Flamingo has seven transmembrane segments and a cytoplasmic tail with no catenin-binding sequence. In Drosophila, Flamingo has pleotropic roles in controlling epithelial polarity and neuronal morphogenesis. Three mammalian orthologs of flamingo, Celsr1-3, are widely expressed in the nervous system. Recent work has shown that Celsr1-3 play important roles in neural development, such as in axon guidance, neuronal migration, and cilium polarity. Celsr1-3 single-gene knockout mice exhibit different phenotypes, but there are cooperative interactions among these genes.
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Affiliation(s)
- Jia Feng
- Joint Laboratory for Brain Function and Health, Jinan University and The University of Hong Kong, Medical School of Jinan University, Guangzhou 510632, China
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22
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The role of the non-canonical Wnt-planar cell polarity pathway in neural crest migration. Biochem J 2014; 457:19-26. [PMID: 24325550 DOI: 10.1042/bj20131182] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The neural crest is an embryonic stem cell population whose migratory behaviour has been likened to malignant invasion. The neural crest, as does cancer, undergoes an epithelial-to-mesenchymal transition and migrates to colonize almost all the tissues of the embryo. Neural crest cells exhibit collective cell migration, moving in streams of high directionality. The migratory neural crest streams are kept in shape by the presence of negative signals in their vicinity. The directionality of the migrating neural crest is achieved by contact-dependent cell polarization, in a phenomenon called contact inhibition of locomotion. Two cells experiencing contact inhibition of locomotion move away from each other after collision. However, if the cell density is high only cells exposed to a free edge can migrate away from the cluster leading to the directional migration of the whole group. Recent work performed in chicks, zebrafish and frogs has shown that the non-canonical Wnt-PCP (planar cell polarity) pathway plays a major role in neural crest migration. PCP signalling controls contact inhibition of locomotion between neural crest cells by localizing different PCP proteins at the site of cell contact during collision and locally regulating the activity of Rho GTPases. Upon collision RhoA (ras homologue family member A) is activated, whereas Rac1 is inhibited at the contact between two migrating neural crest cells, leading to the collapse of protrusions and the migration of cells away from one another. The present review summarizes the mechanisms that control neural crest migration and focuses on the role of non-canonical Wnt or PCP signalling in this process.
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23
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Colombo A, Palma K, Armijo L, Mione M, Signore IA, Morales C, Guerrero N, Meynard MM, Pérez R, Suazo J, Marcelain K, Briones L, Härtel S, Wilson SW, Concha ML. Daam1a mediates asymmetric habenular morphogenesis by regulating dendritic and axonal outgrowth. Development 2013; 140:3997-4007. [PMID: 24046318 PMCID: PMC3775416 DOI: 10.1242/dev.091934] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Although progress has been made in resolving the genetic pathways that specify neuronal asymmetries in the brain, little is known about genes that mediate the development of structural asymmetries between neurons on left and right. In this study, we identify daam1a as an asymmetric component of the signalling pathways leading to asymmetric morphogenesis of the habenulae in zebrafish. Daam1a is a member of the Formin family of actin-binding proteins and the extent of Daam1a expression in habenular neuron dendrites mirrors the asymmetric growth of habenular neuropil between left and right. Local loss and gain of Daam1a function affects neither cell number nor subtype organisation but leads to a decrease or increase of neuropil, respectively. Daam1a therefore plays a key role in the asymmetric growth of habenular neuropil downstream of the pathways that specify asymmetric cellular domains in the habenulae. In addition, Daam1a mediates the development of habenular efferent connectivity as local loss and gain of Daam1a function impairs or enhances, respectively, the growth of habenular neuron terminals in the interpeduncular nucleus. Abrogation of Daam1a disrupts the growth of both dendritic and axonal processes and results in disorganised filamentous actin and α-tubulin. Our results indicate that Daam1a plays a key role in asymmetric habenular morphogenesis mediating the growth of dendritic and axonal processes in dorsal habenular neurons.
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Affiliation(s)
- Alicia Colombo
- Institute of Biomedical Sciences, Facultad de Medicina, Universidad de Chile, Independencia 1027, Santiago 8380453, Chile
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24
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Ren DD, Kelly M, Kim SM, Grimsley-Myers CM, Chi FL, Chen P. Testin interacts with vangl2 genetically to regulate inner ear sensory cell orientation and the normal development of the female reproductive tract in mice. Dev Dyn 2013; 242:1454-65. [PMID: 23996638 DOI: 10.1002/dvdy.24042] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 08/23/2013] [Accepted: 08/23/2013] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Planar cell polarity (PCP) signaling regulates the coordinated polarization of cells and is required for the normal development and function of many tissues. Previous studies have identified conserved PCP genes, such as Van Gogh-like 2 (Vangl2) and Prickle (Pk), in the regulation of coordinated orientation of inner ear hair cells and female reproductive tract development. Testin shares a PET-LIM homology with Pk. It is not clear whether Testin acts in PCP processes in mammals. RESULTS We identified Testin as a Vangl2-interacting protein through a 2-hybrid screen with a cochlea cDNA library. Testin is enriched to cell-cell boundaries in the presence of Vangl2 in cultured cells. Genetic inactivation of Testin leads to abnormal hair cell orientation in the vestibule and cellular patterning defects in the cochlea. In addition, Testin genetically interacts with Vangl2 to regulate hair cell orientation in the cochlea and the opening of the vaginal tract. CONCLUSIONS Our findings suggested Testin as a gene involved in coordinated hair cell orientation in the inner ear and in female reproductive tract development. Furthermore, its genetic interaction with Vangl2 implicated it as a potential molecular link, responsible for mediating the role of Vangl2-containing membranous PCP complexes in directing morphologic polarization.
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Affiliation(s)
- Dong-Dong Ren
- Department of Otolaryngology, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China; Department of Cell Biology, Emory University, Atlanta, Georgia
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25
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Vogel TW, Carter CS, Abode-Iyamah K, Zhang Q, Robinson S. The role of primary cilia in the pathophysiology of neural tube defects. Neurosurg Focus 2013; 33:E2. [PMID: 23025443 DOI: 10.3171/2012.6.focus12222] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Neural tube defects (NTDs) are a set of disorders that occur from perturbation of normal neural development. They occur in open or closed forms anywhere along the craniospinal axis and often result from a complex interaction between environmental and genetic factors. One burgeoning area of genetics research is the effect of cilia signaling on the developing neural tube and how the disruption of primary cilia leads to the development of NTDs. Recent progress has implicated the hedgehog (Hh), wingless-type integration site family (Wnt), and planar cell polarity (PCP) pathways in primary cilia as involved in normal neural tube patterning. A set of disorders involving cilia function, known as ciliopathies, offers insight into abnormal neural development. In this article, the authors discuss the common ciliopathies, such as Meckel-Gruber and Joubert syndromes, that are associated with NTDs, and review cilia-related signaling cascades responsible for mammalian neural tube development. Understanding the contribution of cilia in the formation of NTDs may provide greater insight into this common set of pediatric neurological disorders.
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Affiliation(s)
- Timothy W Vogel
- Department of Neurosurgery, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
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26
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Tissir F, Goffinet AM. Shaping the nervous system: role of the core planar cell polarity genes. Nat Rev Neurosci 2013; 14:525-35. [PMID: 23839596 DOI: 10.1038/nrn3525] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Planar cell polarity (PCP) is complementary to the intrinsic polarization of single cells and refers to the global coordination of cell behaviour in the plane of a tissue and, by extension, to the signalling pathways that control it. PCP is most evident in cell sheets, and research into PCP was for years confined to studies in Drosophila melanogaster. However, PCP has more recently emerged as an important phenomenon in vertebrates, in which it regulates various developmental processes and is associated with multiple disorders. In particular, core PCP genes are crucial for the development and function of the nervous system. They are involved in neural tube closure, ependymal polarity, neuronal migration, dendritic growth and axon guidance.
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Affiliation(s)
- Fadel Tissir
- University of Louvain, Institute of Neuroscience, Developmental Neurobiology Group, Avenue Mounier 73, Box B1.73.16, 1200 Brussels, Belgium
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27
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Demilly A, Steinmetz P, Gazave E, Marchand L, Vervoort M. Involvement of the Wnt/β-catenin pathway in neurectoderm architecture in Platynereis dumerilii. Nat Commun 2013; 4:1915. [DOI: 10.1038/ncomms2915] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 04/19/2013] [Indexed: 12/14/2022] Open
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28
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Abstract
Planar cell polarity (PCP), a process controlling coordinated, uniformly polarized cellular behaviors in a field of cells, has been identified to be critically required for many fundamental developmental processes. However, a global directional cue that establishes PCP in a three-dimensional tissue or organ with respect to the body axes remains elusive. In vertebrate, while Wnt-secreted signaling molecules have been implicated in regulating PCP in a β-catenin-independent manner, whether they function permissively or act as a global cue to convey directional information is not clearly defined. In addition, the underlying molecular mechanism by which Wnt signal is transduced to core PCP proteins is largely unknown. In this chapter, I review the roles of Wnt signaling in regulating PCP during vertebrate development and update our knowledge of its regulatory mechanism.
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Affiliation(s)
- Bo Gao
- National Human Genome Research Institute, Bethesda, Maryland, USA.
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29
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Abstract
Atypical cadherin Celsr3, a regulator of planar cell polarity, is critical for the development of the axonal blueprint. We previously showed that expression of Celsr3 is necessary to establish forebrain connections such as the anterior commissure and thalamocortical and corticospinal tracts. The requirement for Celsr3 during hippocampal wiring and its action in the hippocampus remain largely unexplored. Here, we compared the connectivity and maturation of the hippocampal formation in Celsr3|Foxg1 and Celsr3|Dlx mice. Celsr3 is inactivated in the whole telencephalon, including the hippocampal primordium, in Celsr3|Foxg1 mice, and in the early basal telencephalon, including ganglionic eminences and ventral diencephalon, in Celsr3|Dlx mice. Behavioral tests showed that both mutants were hyperactive and had impaired learning and memory. Abnormal cytoarchitecture of CA1, CA3, and dentate gyrus was found in the Celsr3|Foxg1 mutant, in which afferent and efferent hippocampal pathways, as well as intrinsic connections, were dramatically disrupted. In Celsr3|Dlx mutant mice, hippocampal cytoarchitecture was mildly affected and extrinsic and intrinsic connectivity moderately disturbed. In both mutants, pyramidal neurons in CA1 harbored atrophic dendritic trees, with decreased synapse density and increased proportion of symmetric versus asymmetric synapses, and long-term potentiation was altered. In contrast, mutant hippocampal neurons extended neurites that were normal, even longer than those of control neurons, indicating that anomalies in vivo are secondary to defective connections. Postnatal neurogenesis was preserved and mutant interneurons were able to migrate to the hippocampus. Thus, like in neocortex, Celsr3 is required for hippocampal development, connectivity and function, and for pyramidal cell maturation.
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30
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Mei X, Wu S, Bassuk AG, Slusarski DC. Mechanisms of prickle1a function in zebrafish epilepsy and retinal neurogenesis. Dis Model Mech 2013; 6:679-88. [PMID: 23324328 PMCID: PMC3634651 DOI: 10.1242/dmm.010793] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Epilepsy is a complex neurological disorder characterized by unprovoked seizures. The etiology is heterogeneous with both genetic and environmental causes. Genes that regulate neurotransmitters and ion channels in the central nervous system have been associated with epilepsy. However, a recent screening in human epilepsy patients identified mutations in the PRICKLE1 (PK1) locus, highlighting a potentially novel mechanism underlying seizures. PK1 is a core component of the planar cell polarity network that regulates tissue polarity. Zebrafish studies have shown that Pk1 coordinates cell movement, neuronal migration and axonal outgrowth during embryonic development. Yet how dysfunction of Pk1 relates to epilepsy is unknown. To address the mechanism underlying epileptogenesis, we used zebrafish to characterize Pk1a function and epilepsy-related mutant forms. We show that knockdown of pk1a activity sensitizes zebrafish larva to a convulsant drug. To model defects in the central nervous system, we used the retina and found that pk1a knockdown induces neurite outgrowth defects; yet visual function is maintained. Furthermore, we characterized the functional and biochemical properties of the PK1 mutant forms identified in human patients. Functional analyses demonstrate that the wild-type Pk1a partially suppresses the gene knockdown retinal defects but not the mutant forms. Biochemical analysis reveals increased ubiquitylation of one mutant form and decreased translational efficiency of another mutant form compared with the wild-type Pk1a. Taken together, our results indicate that mutation of human PK1 could lead to defects in neurodevelopment and signal processing, providing insight into seizure predisposition in these patients.
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Affiliation(s)
- Xue Mei
- Department of Biology, University of Iowa, Iowa City, IA 52242, USA
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31
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Hirota Y, Sawada M, Kida YS, Huang SH, Yamada O, Sakaguchi M, Ogura T, Okano H, Sawamoto K. Roles of Planar Cell Polarity Signaling in Maturation of Neuronal Precursor Cells in the Postnatal Mouse Olfactory Bulb. Stem Cells 2012; 30:1726-33. [DOI: 10.1002/stem.1137] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Sakai N, Kaprielian Z. Guidance of longitudinally projecting axons in the developing central nervous system. Front Mol Neurosci 2012; 5:59. [PMID: 22586366 PMCID: PMC3343325 DOI: 10.3389/fnmol.2012.00059] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 04/14/2012] [Indexed: 12/26/2022] Open
Abstract
The directed and stereotypical growth of axons to their synaptic targets is a crucial phase of neural circuit formation. Many axons in the developing vertebrate and invertebrate central nervous systems (CNSs), including those that remain on their own (ipsilateral), and those that cross over to the opposite (commissural), side of the midline project over long distances along the anterior-posterior (A-P) body axis within precisely positioned longitudinally oriented tracts to facilitate the transmission of information between CNS regions. Despite the widespread distribution and functional importance of these longitudinal tracts, the mechanisms that regulate their formation and projection to poorly characterized synaptic targets remain largely unknown. Nevertheless, recent studies carried out in a variety of invertebrate and vertebrate model systems have begun to elucidate the molecular logic that controls longitudinal axon guidance.
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Affiliation(s)
- Nozomi Sakai
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx NY, USA
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33
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Mogi K, Adachi T, Izumi S, Toyoizumi R. Visualisation of cerebrospinal fluid flow patterns in albino Xenopus larvae in vivo. Fluids Barriers CNS 2012; 9:9. [PMID: 22534239 PMCID: PMC3350447 DOI: 10.1186/2045-8118-9-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Accepted: 04/25/2012] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND It has long been known that cerebrospinal fluid (CSF), its composition and flow, play an important part in normal brain development, and ependymal cell ciliary beating as a possible driver of CSF flow has previously been studied in mammalian fetuses in vitro. Lower vertebrate animals are potential models for analysis of CSF flow during development because they are oviparous. Albino Xenopus laevis larvae are nearly transparent and have a straight, translucent brain that facilitates the observation of fluid flow within the ventricles. The aim of these experiments was to study CSF flow and circulation in vivo in the developing brain of living embryos, larvae and tadpoles of Xenopus laevis using a microinjection technique. METHODS The development of Xenopus larval brain ventricles and the patterns of CSF flow were visualised after injection of quantum dot nanocrystals and polystyrene beads (3.1 or 5.8 μm in diameter) into the fourth cerebral ventricle at embryonic/larval stages 30-53. RESULTS The fluorescent nanocrystals showed the normal development of the cerebral ventricles from embryonic/larval stages 38 to 53. The polystyrene beads injected into stage 47-49 larvae revealed three CSF flow patterns, left-handed, right-handed and non-biased, in movement of the beads into the third ventricle from the cerebral aqueduct (aqueduct of Sylvius). In the lateral ventricles, anterior to the third ventricle, CSF flow moved anteriorly along the outer wall of the ventricle to the inner wall and then posteriorly, creating a semicircle. In the cerebral aqueduct, connecting the third and fourth cerebral ventricles, CSF flow moved rostrally in the dorsal region and caudally in the ventral region. Also in the fourth ventricle, clear dorso-ventral differences in fluid flow pattern were observed. CONCLUSIONS This is the first visualisation of the orchestrated CSF flow pattern in developing vertebrates using a live animal imaging approach. CSF flow in Xenopus albino larvae showed a largely consistent pattern, with the exception of individual differences in left-right asymmetrical flow in the third ventricle.
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Affiliation(s)
- Kazue Mogi
- Research Institute for Integrated Science, Kanagawa University, Tsuchiya 2946, Hiratsuka city 259-1293, Japan.
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34
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Beane WS, Tseng AS, Morokuma J, Lemire JM, Levin M. Inhibition of planar cell polarity extends neural growth during regeneration, homeostasis, and development. Stem Cells Dev 2012; 21:2085-94. [PMID: 22339734 DOI: 10.1089/scd.2011.0605] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The ability to stop producing or replacing cells at the appropriate time is essential, as uncontrolled growth can lead to loss of function and even cancer. Tightly regulated mechanisms coordinate the growth of stem cell progeny with the patterning needs of the host organism. Despite the importance of proper termination during regeneration, cell turnover, and embryonic development, very little is known about how tissues determine when patterning is complete during these processes. Using planarian flatworms, we show that the planar cell polarity (PCP) pathway is required to stop the growth of neural tissue. Although traditionally studied as regulators of tissue polarity, we found that loss of the PCP genes Vangl2, DAAM1, and ROCK by RNA interference (individually or together) resulted in supernumerary eyes and excess optical neurons in intact planarians, while regenerating planarians had continued hyperplasia throughout the nervous system long after controls ceased new growth. This failure to terminate growth suggests that neural tissues use PCP as a readout of patterning, highlighting a potential role for intact PCP as a signal to stem and progenitor cells to halt neuronal growth when patterning is finished. Moreover, we found this mechanism to be conserved in vertebrates. Loss of Vangl2 during normal development, as well as during Xenopus tadpole tail regeneration, also leads to the production of excess neural tissue. This evolutionarily conserved function of PCP represents a tractable new approach for controlling the growth of nerves.
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Affiliation(s)
- Wendy S Beane
- Biology Department and Tufts Center for Regenerative and Developmental Biology, Tufts University, Medford, Massachusetts, USA
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35
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Elkouby YM, Polevoy H, Gutkovich YE, Michaelov A, Frank D. A hindbrain-repressive Wnt3a/Meis3/Tsh1 circuit promotes neuronal differentiation and coordinates tissue maturation. Development 2012; 139:1487-97. [PMID: 22399680 DOI: 10.1242/dev.072934] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
During development, early inducing programs must later be counterbalanced for coordinated tissue maturation. In Xenopus laevis embryos, activation of the Meis3 transcription factor by a mesodermal Wnt3a signal lies at the core of the hindbrain developmental program. We now identify a hindbrain restricting circuit, surprisingly comprising the hindbrain inducers Wnt3a and Meis3, and Tsh1 protein. Functional and biochemical analyses show that upon Tsh1 induction by strong Wnt3a/Meis3 feedback loop activity, the Meis3-Tsh1 transcription complex represses the Meis3 promoter, allowing cell cycle exit and neuron differentiation. Meis3 protein exhibits a conserved dual-role in hindbrain development, both inducing neural progenitors and maintaining their proliferative state. In this regulatory circuit, the Tsh1 co-repressor controls transcription factor gene expression that modulates cell cycle exit, morphogenesis and differentiation, thus coordinating neural tissue maturation. This newly identified Wnt/Meis/Tsh circuit could play an important role in diverse developmental and disease processes.
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Affiliation(s)
- Yaniv M Elkouby
- Department of Biochemistry, The Rappaport Family Institute for Research in the Medical Sciences, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
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36
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Abstract
The mammalian Vangl1 and Vangl2 genes were discovered a decade ago through their association with neural tube defects, in particular the presence of Vangl2 mutations in independent alleles of the mouse mutant Loop-tail (Lp), a mouse model of the severe neural tube defect craniorachischisis. Vangl1 and Vangl2 variants have also been detected in familial and sporadic cases of spina bifida. Vangl proteins are highly conserved in evolution with relatives in flies, and distant invertebrates and vertebrates. In these organisms, they play a central role in planar cell polarity (PCP) and convergent extension (CE) movements. Over the past decade, these functional characteristics have also been established for mammalian Vangl genes. The careful analysis of mouse Vangl genes mutants has showed that these genes and the associated PCP pathway and CE movements are involved in many unexpected developmental processes, from morphogenesis of different tissues, left-right asymmetry, asymmetric cell division, and organization of many epithelial structures, as well as positioning and function of cellular appendages. Genetic studies in double mutants and biochemical studies of interacting proteins have started to elucidate the molecular pathways in which Vangl proteins participate and that regulate these complex events.
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Affiliation(s)
- Elena Torban
- Department of Medicine, McGill University, Montreal, Quebec, Canada
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37
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Berger-Müller S, Suzuki T. Seven-pass transmembrane cadherins: roles and emerging mechanisms in axonal and dendritic patterning. Mol Neurobiol 2011; 44:313-20. [PMID: 21909747 PMCID: PMC3229701 DOI: 10.1007/s12035-011-8201-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Accepted: 08/29/2011] [Indexed: 11/28/2022]
Abstract
The Flamingo/Celsr seven-transmembrane cadherins represent a conserved subgroup of the cadherin superfamily involved in multiple aspects of development. In the developing nervous system, Fmi/Celsr control axonal blueprint and dendritic morphogenesis from invertebrates to mammals. As expected from their molecular structure, seven-transmembrane cadherins can induce cell–cell homophilic interactions but also intracellular signaling. Fmi/Celsr is known to regulate planar cell polarity (PCP) through interactions with PCP proteins. In the nervous system, Fmi/Celsr can function in collaboration with or independently of other PCP genes. Here, we focus on recent studies which show that seven-transmembrane cadherins use distinct molecular mechanisms to achieve diverse functions in the development of the nervous system.
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Affiliation(s)
- Sandra Berger-Müller
- Research Group Axon Guidance and Neuronal Connectivity, Max Planck Institute of Neurobiology, Am Kolpferspitz 18, 82152 Martinsried, Germany
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38
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Louvi A, Grove EA. Cilia in the CNS: the quiet organelle claims center stage. Neuron 2011; 69:1046-60. [PMID: 21435552 DOI: 10.1016/j.neuron.2011.03.002] [Citation(s) in RCA: 190] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2011] [Indexed: 01/19/2023]
Abstract
The primary cilium is a cellular organelle that is almost ubiquitous in eukaryotes, yet its functions in vertebrates have been slow to emerge. The last fifteen years have been marked by accelerating insight into the biology of primary cilia, arising from the synergy of three major lines of research. These research programs describe a specialized mode of protein trafficking in cilia, reveal that genetic disruptions of primary cilia cause complex human disease syndromes, and establish that Sonic hedgehog (Shh) signal transduction requires the primary cilium. New lines of research have branched off to investigate the role of primary cilia in neuronal signaling, adult neurogenesis, and brain tumor formation. We review a fast expanding literature to determine what we now know about the primary cilium in the developing and adult CNS and what new directions should lead to further clarity.
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Affiliation(s)
- Angeliki Louvi
- Departments of Neurosurgery and Neurobiology, Yale School of Medicine, New Haven, CT 06520, USA
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The Wnt5/planar cell polarity pathway regulates axonal development of the Drosophila mushroom body neuron. J Neurosci 2011; 31:4944-54. [PMID: 21451033 DOI: 10.1523/jneurosci.0154-11.2011] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Axonal development is a fundamental process for circuit formation in the nervous system and is dependent on many cellular events, including axon initiation, elongation, guidance, and branching. The molecular mechanisms underlying these events have been well studied, especially for axon guidance. In the presence of a guidance cue, the polarization of a growth cone precedes the turning response, which is one example of the diverse forms of cell polarity. Planar cell polarity (PCP) is another example of cell polarity. Although some PCP genes are required for axonal tract formation in vertebrates, it remains elusive whether these genes participate in a common PCP pathway concertedly. Here, we show that essential PCP signaling components, encoded by frizzled (fz), strabismus (stbm), flamingo (fmi), and dishevelled (dsh), are cooperatively required for axonal targeting and branching of the Drosophila mushroom body (MB) neurons. A detailed analysis of these mutants revealed that these components were required for the correct targeting and bifurcation of axons. In addition, we suggest that Wnt5 functions as a ligand in the PCP pathway in this process. Wnt5 mutants showed similar phenotypes to PCP mutants at the single-cell level and genetically interacted with PCP genes. Wnt5 was broadly expressed in the developing brain. We propose that Wnt5 and the PCP pathway concertedly regulate axonal development of the MB.
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Synaptic Wnt signaling-a contributor to major psychiatric disorders? J Neurodev Disord 2011; 3:162-74. [PMID: 21533542 PMCID: PMC3180925 DOI: 10.1007/s11689-011-9083-6] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Accepted: 04/05/2011] [Indexed: 02/08/2023] Open
Abstract
Wnt signaling is a key pathway that helps organize development of the nervous system. It influences cell proliferation, cell fate, and cell migration in the developing nervous system, as well as axon guidance, dendrite development, and synapse formation. Given this wide range of roles, dysregulation of Wnt signaling could have any number of deleterious effects on neural development and thereby contribute in many different ways to the pathogenesis of neurodevelopmental disorders. Some major psychiatric disorders, including schizophrenia, bipolar disorder, and autism spectrum disorders, are coming to be understood as subtle dysregulations of nervous system development, particularly of synapse formation and maintenance. This review will therefore touch on the importance of Wnt signaling to neurodevelopment generally, while focusing on accumulating evidence for a synaptic role of Wnt signaling. These observations will be discussed in the context of current understanding of the neurodevelopmental bases of major psychiatric diseases, spotlighting schizophrenia, bipolar disorder, and autism spectrum disorder. In short, this review will focus on the potential role of synapse formation and maintenance in major psychiatric disorders and summarize evidence that defective Wnt signaling could contribute to their pathogenesis via effects on these late neural differentiation processes.
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Mutations in prickle orthologs cause seizures in flies, mice, and humans. Am J Hum Genet 2011; 88:138-49. [PMID: 21276947 DOI: 10.1016/j.ajhg.2010.12.012] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 12/15/2010] [Accepted: 12/21/2010] [Indexed: 11/23/2022] Open
Abstract
Epilepsy is heritable, yet few causative gene mutations have been identified, and thus far no human epilepsy gene mutations have been found to produce seizures in invertebrates. Here we show that mutations in prickle genes are associated with seizures in humans, mice, and flies. We identified human epilepsy patients with heterozygous mutations in either PRICKLE1 or PRICKLE2. In overexpression assays in zebrafish, prickle mutations resulted in aberrant prickle function. A seizure phenotype was present in the Prickle1-null mutant mouse, two Prickle1 point mutant (missense and nonsense) mice, and a Prickle2-null mutant mouse. Drosophila with prickle mutations displayed seizures that were responsive to anti-epileptic medication, and homozygous mutant embryos showed neuronal defects. These results suggest that prickle mutations have caused seizures throughout evolution.
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