1
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Xiong GJ, Sheng ZH. Presynaptic perspective: Axonal transport defects in neurodevelopmental disorders. J Cell Biol 2024; 223:e202401145. [PMID: 38568173 PMCID: PMC10988239 DOI: 10.1083/jcb.202401145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/05/2024] Open
Abstract
Disruption of synapse assembly and maturation leads to a broad spectrum of neurodevelopmental disorders. Presynaptic proteins are largely synthesized in the soma, where they are packaged into precursor vesicles and transported into distal axons to ensure precise assembly and maintenance of presynapses. Due to their morphological features, neurons face challenges in the delivery of presynaptic cargos to nascent boutons. Thus, targeted axonal transport is vital to build functional synapses. A growing number of mutations in genes encoding the transport machinery have been linked to neurodevelopmental disorders. Emerging lines of evidence have started to uncover presynaptic mechanisms underlying axonal transport defects, thus broadening the view of neurodevelopmental disorders beyond postsynaptic mechanisms. In this review, we discuss presynaptic perspectives of neurodevelopmental disorders by focusing on impaired axonal transport and disturbed assembly and maintenance of presynapses. We also discuss potential strategies for restoring axonal transport as an early therapeutic intervention.
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Affiliation(s)
- Gui-Jing Xiong
- Synaptic Function Section, The Porter Neuroscience Research Center, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Zu-Hang Sheng
- Synaptic Function Section, The Porter Neuroscience Research Center, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
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2
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Sánchez-Huertas C, Herrera E. With the Permission of Microtubules: An Updated Overview on Microtubule Function During Axon Pathfinding. Front Mol Neurosci 2021; 14:759404. [PMID: 34924953 PMCID: PMC8675249 DOI: 10.3389/fnmol.2021.759404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 11/01/2021] [Indexed: 01/27/2023] Open
Abstract
During the establishment of neural circuitry axons often need to cover long distances to reach remote targets. The stereotyped navigation of these axons defines the connectivity between brain regions and cellular subtypes. This chemotrophic guidance process mostly relies on the spatio-temporal expression patterns of extracellular proteins and the selective expression of their receptors in projection neurons. Axon guidance is stimulated by guidance proteins and implemented by neuronal traction forces at the growth cones, which engage local cytoskeleton regulators and cell adhesion proteins. Different layers of guidance signaling regulation, such as the cleavage and processing of receptors, the expression of co-receptors and a wide variety of intracellular cascades downstream of receptors activation, have been progressively unveiled. Also, in the last decades, the regulation of microtubule (MT) assembly, stability and interactions with the submembranous actin network in the growth cone have emerged as crucial effector mechanisms in axon pathfinding. In this review, we will delve into the intracellular signaling cascades downstream of guidance receptors that converge on the MT cytoskeleton of the growing axon. In particular, we will focus on the microtubule-associated proteins (MAPs) network responsible of MT dynamics in the axon and growth cone. Complementarily, we will discuss new evidences that connect defects in MT scaffold proteins, MAPs or MT-based motors and axon misrouting during brain development.
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Affiliation(s)
- Carlos Sánchez-Huertas
- Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas-Universidad Miguel Hernández (CSIC-UMH), Alicante, Spain
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3
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Ozyavuz Cubuk P. Goldberg-Shprintzen Syndrome Associated with a Novel Variant in the KIFBP Gene. Mol Syndromol 2021; 12:240-243. [PMID: 34421502 DOI: 10.1159/000514531] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 01/19/2021] [Indexed: 11/19/2022] Open
Abstract
Goldberg-Shprintzen syndrome (GOSHS) is characterized by microcephaly, developmental delay, dysmorphic features, Hirschsprung disease (HSCR), and brain anomalies. The kinesin family binding protein (KIFBP; MIM 60937) gene has been identified as the responsible gene of the syndrome. To date, 16 different biallelic KIFBP mutations have been identified in 34 patients with GOSHS. Even though most of these mutations are nonsense and frameshift, 3 missense mutations have also been described. Here, we report an 18-month-old patient with microcephaly, developmental delay, dysmorphic features and HSCR. Exome analysis was performed to clarify the etiology of the clinical features. A previously unreported homozygous c.1723delC (p.H575Ifs*19) variant was detected in the last exon 7 of KIFBP which led to GOSHS. According to our findings, we suggest that this mutation expands mutational databases and contributes to the understanding of the phenotypic features of the syndrome.
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Affiliation(s)
- Pelin Ozyavuz Cubuk
- Department of Medical Genetics, Haseki Training and Research Hospital, Health Sciences University, Istanbul, Turkey
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4
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Karim A, Tang CSM, Tam PKH. The Emerging Genetic Landscape of Hirschsprung Disease and Its Potential Clinical Applications. Front Pediatr 2021; 9:638093. [PMID: 34422713 PMCID: PMC8374333 DOI: 10.3389/fped.2021.638093] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 07/02/2021] [Indexed: 12/25/2022] Open
Abstract
Hirschsprung disease (HSCR) is the leading cause of neonatal functional intestinal obstruction. It is a rare congenital disease with an incidence of one in 3,500-5,000 live births. HSCR is characterized by the absence of enteric ganglia in the distal colon, plausibly due to genetic defects perturbing the normal migration, proliferation, differentiation, and/or survival of the enteric neural crest cells as well as impaired interaction with the enteric progenitor cell niche. Early linkage analyses in Mendelian and syndromic forms of HSCR uncovered variants with large effects in major HSCR genes including RET, EDNRB, and their interacting partners in the same biological pathways. With the advances in genome-wide genotyping and next-generation sequencing technologies, there has been a remarkable progress in understanding of the genetic basis of HSCR in the past few years, with common and rare variants with small to moderate effects being uncovered. The discovery of new HSCR genes such as neuregulin and BACE2 as well as the deeper understanding of the roles and mechanisms of known HSCR genes provided solid evidence that many HSCR cases are in the form of complex polygenic/oligogenic disorder where rare variants act in the sensitized background of HSCR-associated common variants. This review summarizes the roadmap of genetic discoveries of HSCR from the earlier family-based linkage analyses to the recent population-based genome-wide analyses coupled with functional genomics, and how these discoveries facilitated our understanding of the genetic architecture of this complex disease and provide the foundation of clinical translation for precision and stratified medicine.
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Affiliation(s)
- Anwarul Karim
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Clara Sze-Man Tang
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Li Dak-Sum Research Center, The University of Hong Kong—Karolinska Institute Collaboration in Regenerative Medicine, Hong Kong, China
| | - Paul Kwong-Hang Tam
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Li Dak-Sum Research Center, The University of Hong Kong—Karolinska Institute Collaboration in Regenerative Medicine, Hong Kong, China
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5
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El Khouri E, Ghoumid J, Haye D, Giuliano F, Drevillon L, Briand-Suleau A, De La Grange P, Nau V, Gaillon T, Bienvenu T, Jacquemin-Sablon H, Goossens M, Amselem S, Giurgea I. Wnt/β-catenin pathway and cell adhesion deregulation in CSDE1-related intellectual disability and autism spectrum disorders. Mol Psychiatry 2021; 26:3572-3585. [PMID: 33867523 DOI: 10.1038/s41380-021-01072-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 03/08/2021] [Accepted: 03/19/2021] [Indexed: 12/26/2022]
Abstract
Among the genetic factors playing a key role in the etiology of intellectual disabilities (IDs) and autism spectrum disorders (ASDs), several encode RNA-binding proteins (RBPs). In this study, we deciphered the molecular and cellular bases of ID-ASD in a patient followed from birth to the age of 21, in whom we identified a de novo CSDE1 (Cold Shock Domain-containing E1) nonsense variation. CSDE1 encodes an RBP that regulates multiple cellular pathways by monitoring the translation and abundance of target transcripts. Analyses performed on the patient's primary fibroblasts showed that the identified CSDE1 variation leads to haploinsufficiency. We identified through RNA-seq assays the Wnt/β-catenin signaling and cellular adhesion as two major deregulated pathways. These results were further confirmed by functional studies involving Wnt-specific luciferase and substrate adhesion assays. Additional data support a disease model involving APC Down-Regulated-1 (APCDD1) and cadherin-2 (CDH2), two components of the Wnt/β-catenin pathway, CDH2 being also pivotal for cellular adhesion. Our study, which relies on both the deep phenotyping and long-term follow-up of a patient with CSDE1 haploinsufficiency and on ex vivo studies, sheds new light on the CSDE1-dependent deregulated pathways in ID-ASD.
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Affiliation(s)
- E El Khouri
- Sorbonne Université, INSERM, Maladies génétiques d'expression pédiatrique, Département de Génétique médicale, Assistance Publique Hôpitaux de Paris, Hôpital Trousseau, Paris, France
| | - J Ghoumid
- Département de Génétique, Groupe Hospitalier Henri Mondor, Créteil, France.,Service de Génétique Clinique, Hôpital Jeanne de Flandre, CHU Lille, Lille, France
| | - D Haye
- Service de Génétique Médicale Centre, Hospitalo-Universitaire de Nice, Nice, France
| | - F Giuliano
- Service de Génétique Médicale Centre, Hospitalo-Universitaire de Nice, Nice, France
| | - L Drevillon
- Département de Génétique, Groupe Hospitalier Henri Mondor, Créteil, France.,CHU Caen Normandie, Caen, France
| | - A Briand-Suleau
- Département de Génétique, Groupe Hospitalier Henri Mondor, Créteil, France.,Service de Génétique et Biologie Moléculaires, Hôpital Cochin, INSERM UMR1266 - Institute of Psychiatry and Neuroscience of Paris (IPNP) and University of Paris, Paris, France
| | | | - V Nau
- Sorbonne Université, INSERM, Maladies génétiques d'expression pédiatrique, Département de Génétique médicale, Assistance Publique Hôpitaux de Paris, Hôpital Trousseau, Paris, France
| | - T Gaillon
- Département de Génétique, Groupe Hospitalier Henri Mondor, Créteil, France
| | - T Bienvenu
- Service de Génétique et Biologie Moléculaires, Hôpital Cochin, INSERM UMR1266 - Institute of Psychiatry and Neuroscience of Paris (IPNP) and University of Paris, Paris, France
| | - H Jacquemin-Sablon
- INSERM UMR1053 Bordeaux Research in Translational Oncology, BaRITOn, Bordeaux, France
| | - M Goossens
- Département de Génétique, Groupe Hospitalier Henri Mondor, Créteil, France
| | - S Amselem
- Sorbonne Université, INSERM, Maladies génétiques d'expression pédiatrique, Département de Génétique médicale, Assistance Publique Hôpitaux de Paris, Hôpital Trousseau, Paris, France
| | - I Giurgea
- Sorbonne Université, INSERM, Maladies génétiques d'expression pédiatrique, Département de Génétique médicale, Assistance Publique Hôpitaux de Paris, Hôpital Trousseau, Paris, France. .,Département de Génétique, Groupe Hospitalier Henri Mondor, Créteil, France.
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6
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Pallavicini G, Gai M, Iegiani G, Berto GE, Adrait A, Couté Y, Di Cunto F. Goldberg-Shprintzen syndrome protein KIF1BP is a CITK interactor implicated in cytokinesis. J Cell Sci 2021; 134:jcs250902. [PMID: 34100550 DOI: 10.1242/jcs.250902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 05/04/2021] [Indexed: 12/14/2022] Open
Abstract
Goldberg-Shprintzen disease (GOSHS) is a rare microcephaly syndrome accompanied by intellectual disability, dysmorphic facial features, peripheral neuropathy and Hirschsprung disease. It is associated with recessive mutations in the gene encoding kinesin family member 1-binding protein (KIF1BP, also known as KIFBP). The encoded protein regulates axon microtubules dynamics, kinesin attachment and mitochondrial biogenesis, but it is not clear how its loss could lead to microcephaly. We identified KIF1BP in the interactome of citron kinase (CITK, also known as CIT), a protein produced by the primary hereditary microcephaly 17 (MCPH17) gene. KIF1BP and CITK interact under physiological conditions in mitotic cells. Similar to CITK, KIF1BP is enriched at the midbody ring and is required for cytokinesis. The association between KIF1BP and CITK can be influenced by CITK activity, and the two proteins may antagonize each other for their midbody localization. KIF1BP knockdown decreases microtubule stability, increases KIF23 midbody levels and impairs midbody localization of KIF14, as well as of chromosome passenger complex. These data indicate that KIF1BP is a CITK interactor involved in midbody maturation and abscission, and suggest that cytokinesis failure may contribute to the microcephaly phenotype observed in GOSHS.
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Affiliation(s)
- Gianmarco Pallavicini
- Neuroscience Institute Cavalieri Ottolenghi, Turin 10123, Italy
- Department of Neuroscience 'Rita Levi Montalcini', University of Turin, Turin 10126, Italy
| | - Marta Gai
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin 10126, Italy
| | - Giorgia Iegiani
- Neuroscience Institute Cavalieri Ottolenghi, Turin 10123, Italy
- Department of Neuroscience 'Rita Levi Montalcini', University of Turin, Turin 10126, Italy
| | - Gaia Elena Berto
- Neuroscience Institute Cavalieri Ottolenghi, Turin 10123, Italy
- Department of Neuroscience 'Rita Levi Montalcini', University of Turin, Turin 10126, Italy
| | - Annie Adrait
- Univ. Grenoble Alpes, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut national de la santé et de la recherche médicale (INSERM), Interdisciplinary Research Institute of Grenoble (IRIG), Laboratoire Biologie à Grande Echelle (BGE), 38000 Grenoble, France
| | - Yohann Couté
- Univ. Grenoble Alpes, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut national de la santé et de la recherche médicale (INSERM), Interdisciplinary Research Institute of Grenoble (IRIG), Laboratoire Biologie à Grande Echelle (BGE), 38000 Grenoble, France
| | - Ferdinando Di Cunto
- Neuroscience Institute Cavalieri Ottolenghi, Turin 10123, Italy
- Department of Neuroscience 'Rita Levi Montalcini', University of Turin, Turin 10126, Italy
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7
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Atherton J, Hummel JJA, Olieric N, Locke J, Peña A, Rosenfeld SS, Steinmetz MO, Hoogenraad CC, Moores CA. The mechanism of kinesin inhibition by kinesin-binding protein. eLife 2020; 9:e61481. [PMID: 33252036 PMCID: PMC7746232 DOI: 10.7554/elife.61481] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/28/2020] [Indexed: 12/25/2022] Open
Abstract
Subcellular compartmentalisation is necessary for eukaryotic cell function. Spatial and temporal regulation of kinesin activity is essential for building these local environments via control of intracellular cargo distribution. Kinesin-binding protein (KBP) interacts with a subset of kinesins via their motor domains, inhibits their microtubule (MT) attachment, and blocks their cellular function. However, its mechanisms of inhibition and selectivity have been unclear. Here we use cryo-electron microscopy to reveal the structure of KBP and of a KBP-kinesin motor domain complex. KBP is a tetratricopeptide repeat-containing, right-handed α-solenoid that sequesters the kinesin motor domain's tubulin-binding surface, structurally distorting the motor domain and sterically blocking its MT attachment. KBP uses its α-solenoid concave face and edge loops to bind the kinesin motor domain, and selected structure-guided mutations disrupt KBP inhibition of kinesin transport in cells. The KBP-interacting motor domain surface contains motifs exclusively conserved in KBP-interacting kinesins, suggesting a basis for kinesin selectivity.
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Affiliation(s)
- Joseph Atherton
- Randall Centre for Cell and Molecular Biophysics, King’s CollegeLondonUnited Kingdom
- Institute of Structural and Molecular Biology, Birkbeck, University of LondonLondonUnited Kingdom
| | - Jessica JA Hummel
- Cell Biology, Neurobiology and Biophysics, Department of Biology, Faculty of Science, Utrecht UniversityUtrechtNetherlands
| | - Natacha Olieric
- Laboratory of Biomolecular Research, Division of Biology and Chemistry, Paul Scherrer InstitutVilligen PSISwitzerland
| | - Julia Locke
- Institute of Structural and Molecular Biology, Birkbeck, University of LondonLondonUnited Kingdom
| | - Alejandro Peña
- Institute of Structural and Molecular Biology, Birkbeck, University of LondonLondonUnited Kingdom
| | | | - Michel O Steinmetz
- Laboratory of Biomolecular Research, Division of Biology and Chemistry, Paul Scherrer InstitutVilligen PSISwitzerland
- University of Basel, BiozentrumBaselSwitzerland
| | - Casper C Hoogenraad
- Cell Biology, Neurobiology and Biophysics, Department of Biology, Faculty of Science, Utrecht UniversityUtrechtNetherlands
| | - Carolyn A Moores
- Institute of Structural and Molecular Biology, Birkbeck, University of LondonLondonUnited Kingdom
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8
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MacKenzie KC, de Graaf BM, Syrimis A, Zhao Y, Brosens E, Mancini GMS, Schot R, Halley D, Wilke M, Vøllo A, Flinter F, Green A, Mansour S, Pilch J, Stark Z, Zamba-Papanicolaou E, Christophidou-Anastasiadou V, Hofstra RMW, Jongbloed JDH, Nicolaou N, Tanteles GA, Brooks AS, Alves MM. Goldberg-Shprintzen syndrome is determined by the absence, or reduced expression levels, of KIFBP. Hum Mutat 2020; 41:1906-1917. [PMID: 32939943 PMCID: PMC7693350 DOI: 10.1002/humu.24097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 03/12/2020] [Accepted: 08/04/2020] [Indexed: 12/19/2022]
Abstract
Goldberg-Shprintzen syndrome (GOSHS) is caused by loss of function variants in the kinesin binding protein gene (KIFBP). However, the phenotypic range of this syndrome is wide, indicating that other factors may play a role. To date, 37 patients with GOSHS have been reported. Here, we document nine new patients with variants in KIFBP: seven with nonsense variants and two with missense variants. To our knowledge, this is the first time that missense variants have been reported in GOSHS. We functionally investigated the effect of the variants identified, in an attempt to find a genotype-phenotype correlation. We also determined whether common Hirschsprung disease (HSCR)-associated single nucleotide polymorphisms (SNPs), could explain the presence of HSCR in GOSHS. Our results showed that the missense variants led to reduced expression of KIFBP, while the truncating variants resulted in lack of protein. However, no correlation was found between the severity of GOSHS and the location of the variants. We were also unable to find a correlation between common HSCR-associated SNPs, and HSCR development in GOSHS. In conclusion, we show that reduced, as well as lack of KIFBP expression can lead to GOSHS, and our results suggest that a threshold expression of KIFBP may modulate phenotypic variability of the disease.
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Affiliation(s)
- Katherine C MacKenzie
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Bianca M de Graaf
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Andreas Syrimis
- Department of Clinical Genetics, The Cyprus Institute of Neurology & Genetics and Archbishop Makarios III Medical Centre, Nicosia, Cyprus
| | - Yuying Zhao
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Erwin Brosens
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Grazia M S Mancini
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Rachel Schot
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Dicky Halley
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Martina Wilke
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Arve Vøllo
- Department of Paediatrics, Sykehuset Østfold HF, Fredrikstad, Norway
| | - Frances Flinter
- Department of Clinical Genetics, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Andrew Green
- Department of Clinical Genetics, Children's Hospital Ireland at Crumlin, Dublin, Ireland
| | - Sahar Mansour
- South West Thames Regional Genetic Service, St George's Hospital Medical School, London, UK
| | - Jacek Pilch
- Department of Child Neurology, Medical University of Silesia, Katowice, Poland
| | - Zornitza Stark
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | | | | | - Robert M W Hofstra
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Jan D H Jongbloed
- Department of Genetics, University Medical Centre Groningen, Groningen, The Netherlands
| | - Nayia Nicolaou
- Department of Clinical Genetics, The Cyprus Institute of Neurology & Genetics and Archbishop Makarios III Medical Centre, Nicosia, Cyprus
| | - George A Tanteles
- Department of Clinical Genetics, The Cyprus Institute of Neurology & Genetics and Archbishop Makarios III Medical Centre, Nicosia, Cyprus
| | - Alice S Brooks
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Maria M Alves
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
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9
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Chang HY, Cheng HY, Tsao AN, Liu C, Tsai JW. Multiple Functions of KBP in Neural Development Underlie Brain Anomalies in Goldberg-Shprintzen Syndrome. Front Mol Neurosci 2019; 12:265. [PMID: 31736709 PMCID: PMC6838004 DOI: 10.3389/fnmol.2019.00265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/16/2019] [Indexed: 11/13/2022] Open
Abstract
Kinesin-binding protein (KBP; KIF1BP; KIAA1279) functions as a regulator for a subset of kinesins, many of which play important roles in neural development. Previous studies have shown that KBP is expressed in nearly all tissue with cytoplasmic localization. Autosomal recessive mutations in KIAA1279 cause a rare neurological disorder, Goldberg-Shprintzen syndrome (GOSHS), characterized by microcephaly, polymicrogyria, intellectual disability, axonal neuropathy, thin corpus callosum and peripheral neuropathy. Most KIAA1279 mutations found in GOSHS patients are homozygous nonsense mutations that result in KBP loss-of-function. However, it is not fully understood how KBP dysfunction causes these defects. Here, we used in utero electroporation (IUE) to express KBP short hairpin RNA (shRNA) with green fluorescent protein (GFP) in neural progenitor cells of embryonic day (E) 14 mice, and collected brain slices at different developmental stages. By immunostaining of neuronal lineage markers, we found that KBP knockdown does not affect the neural differentiation process. However, at 4 days post IUE, many cells were located in the intermediate zone (IZ). Moreover, at postnatal day (P) 6, about one third of the cells, which have become mature neurons, remained ectopically in the white matter (WM), while cells that have reached Layer II/III of the cortex showed impaired dendritic outgrowth and axonal projection. We also found that KBP knockdown induces apoptosis during the postnatal period. Our findings indicate that loss of KBP function leads to defects in neuronal migration, morphogenesis, maturation, and survival, which may be responsible for brain phenotypes observed in GOSHS.
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Affiliation(s)
- Hsin-Yun Chang
- Institute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Haw-Yuan Cheng
- Institute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ai-Ni Tsao
- Institute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chen Liu
- Institute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Jin-Wu Tsai
- Institute of Brain Science, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Brain Research Center, National Yang-Ming University, Taipei, Taiwan.,Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
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10
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Yang W, Chen SC, Lai JY, Ming YC, Chen JC, Chen PL. Distinctive genetic variation of long-segment Hirschsprung's disease in Taiwan. Neurogastroenterol Motil 2019; 31:e13665. [PMID: 31240788 DOI: 10.1111/nmo.13665] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/09/2019] [Accepted: 06/10/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Hirschsprung's disease (HSCR) is a congenital disorder with the absence of myenteric and submucosal ganglion cells within distal gut. Due to multigenic inheritance and interactions, we employed next-generation sequencing (NGS) to investigate genetic backgrounds of long-segment HSCR (L-HSCR) in Taiwan. METHODS Genomic DNA extracted from peripheral blood of L-HSCR patients was subjected to capture-based NGS, based on a 31-gene panel. The variants with allele frequency <0.05 and predicted by computational methods as deleterious were further validated by Sanger sequencing in patients and their family as well to tell de novo from inherited variants. RESULTS Between 2015/04 and 2018/05, this study enrolled 23 L-HSCR patients, including 15 (65.2%) sporadic cases and 8 (34.8%) familial patients in 4 different families. Six sporadic and seven familial cases showed possible harmful variants across eight different genes, accounting for an overall detection rate of 56.5%. These variants mainly resided in SEMA3C, followed by RET, NRG1, and NTRK1. Three sporadic and 2 familial cases exhibited strong pathogenic variants as a deletional frameshift or stop codon in RET, L1CAM or NRG1. In a HSCR family, the father passed on a pathogenic RET frameshift to two daughters; however, only one developed HSCR. CONCLUSION Using NGS, we disclosed deleterious mutations such as a frameshift or stop codon in either familial or sporadic patients. Our cases with isolated L-HSCR or even total colonic aganglionosis appeared to exhibit complex patterns of inheritance and incomplete penetrance even in families with the same genetic variants, reflecting the possible effects of environmental factors and genetic modifiers.
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Affiliation(s)
- Wendy Yang
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Surgery, College of Medicine, Chang Gung Children's Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Szu-Chieh Chen
- Pediatric Research Center, Chang Gung Children's Hospital, Taoyuan, Taiwan
| | - Jin-Yao Lai
- Department of Surgery, College of Medicine, Chang Gung Children's Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Yung-Ching Ming
- Department of Surgery, College of Medicine, Chang Gung Children's Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Jeng-Chang Chen
- Department of Surgery, College of Medicine, Chang Gung Children's Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Pei-Lung Chen
- Graduate Institute of Medical Genomics and Proteomics, National Taiwan University, Taipei, Taiwan.,Departments of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan.,Departments of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
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11
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Luzón‐Toro B, Villalba‐Benito L, Torroglosa A, Fernández RM, Antiñolo G, Borrego S. What is new about the genetic background of Hirschsprung disease? Clin Genet 2019; 97:114-124. [DOI: 10.1111/cge.13615] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/23/2019] [Accepted: 07/25/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Berta Luzón‐Toro
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville (IBIS)University Hospital Virgen del Rocío/CSIC/University of Seville Seville Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER) Seville Spain
| | - Leticia Villalba‐Benito
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville (IBIS)University Hospital Virgen del Rocío/CSIC/University of Seville Seville Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER) Seville Spain
| | - Ana Torroglosa
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville (IBIS)University Hospital Virgen del Rocío/CSIC/University of Seville Seville Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER) Seville Spain
| | - Raquel M. Fernández
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville (IBIS)University Hospital Virgen del Rocío/CSIC/University of Seville Seville Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER) Seville Spain
| | - Guillermo Antiñolo
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville (IBIS)University Hospital Virgen del Rocío/CSIC/University of Seville Seville Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER) Seville Spain
| | - Salud Borrego
- Department of Maternofetal Medicine, Genetics and Reproduction, Institute of Biomedicine of Seville (IBIS)University Hospital Virgen del Rocío/CSIC/University of Seville Seville Spain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER) Seville Spain
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12
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Malaby HLH, Dumas ME, Ohi R, Stumpff J. Kinesin-binding protein ensures accurate chromosome segregation by buffering KIF18A and KIF15. J Cell Biol 2019; 218:1218-1234. [PMID: 30709852 PMCID: PMC6446846 DOI: 10.1083/jcb.201806195] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/09/2018] [Accepted: 01/08/2019] [Indexed: 12/22/2022] Open
Abstract
Kinesin-binding protein (KBP) is identified as a regulator of the kinesins KIF18A and KIF15 during mitosis. KBP buffers the activity of these motors to control chromosome alignment and spindle integrity in metaphase and prevent lagging chromosomes in anaphase. Mitotic kinesins must be regulated to ensure a precise balance of spindle forces and accurate segregation of chromosomes into daughter cells. Here, we demonstrate that kinesin-binding protein (KBP) reduces the activity of KIF18A and KIF15 during metaphase. Overexpression of KBP disrupts the movement and alignment of mitotic chromosomes and decreases spindle length, a combination of phenotypes observed in cells deficient for KIF18A and KIF15, respectively. We show through gliding filament and microtubule co-pelleting assays that KBP directly inhibits KIF18A and KIF15 motor activity by preventing microtubule binding. Consistent with these effects, the mitotic localizations of KIF18A and KIF15 are altered by overexpression of KBP. Cells depleted of KBP exhibit lagging chromosomes in anaphase, an effect that is recapitulated by KIF15 and KIF18A overexpression. Based on these data, we propose a model in which KBP acts as a protein buffer in mitosis, protecting cells from excessive KIF18A and KIF15 activity to promote accurate chromosome segregation.
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Affiliation(s)
- Heidi L H Malaby
- Department of Molecular Physiology and Biophysics, University of Vermont, Burlington, VT
| | - Megan E Dumas
- Department of Cell and Developmental Biology, Vanderbilt University Medical School, Nashville, TN
| | - Ryoma Ohi
- The Life Sciences Institute, University of Michigan Medical School, Ann Arbor, MI .,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI
| | - Jason Stumpff
- Department of Molecular Physiology and Biophysics, University of Vermont, Burlington, VT
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13
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Hirst CS, Stamp LA, Bergner AJ, Hao MM, Tran MX, Morgan JM, Dutschmann M, Allen AM, Paxinos G, Furlong TM, McKeown SJ, Young HM. Kif1bp loss in mice leads to defects in the peripheral and central nervous system and perinatal death. Sci Rep 2017; 7:16676. [PMID: 29192291 PMCID: PMC5709403 DOI: 10.1038/s41598-017-16965-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 11/19/2017] [Indexed: 12/29/2022] Open
Abstract
Goldberg-Shprintzen syndrome is a poorly understood condition characterized by learning difficulties, facial dysmorphism, microcephaly, and Hirschsprung disease. GOSHS is due to recessive mutations in KIAA1279, which encodes kinesin family member 1 binding protein (KIF1BP, also known as KBP). We examined the effects of inactivation of Kif1bp in mice. Mice lacking Kif1bp died shortly after birth, and exhibited smaller brains, olfactory bulbs and anterior commissures, and defects in the vagal and sympathetic innervation of the gut. Kif1bp was found to interact with Ret to regulate the development of the vagal innervation of the stomach. Although newborn Kif1bp−/− mice had neurons along the entire bowel, the colonization of the gut by neural crest-derived cells was delayed. The data show an essential in vivo role for KIF1BP in axon extension from some neurons, and the reduced size of the olfactory bulb also suggests additional roles for KIF1BP. Our mouse model provides a valuable resource to understand GOSHS.
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Affiliation(s)
- Caroline S Hirst
- Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, 3010, Australia
| | - Lincon A Stamp
- Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, 3010, Australia
| | - Annette J Bergner
- Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, 3010, Australia
| | - Marlene M Hao
- Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, 3010, Australia
| | - Mai X Tran
- Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, 3010, Australia
| | - Jan M Morgan
- Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, 3010, Australia
| | - Matthias Dutschmann
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia
| | - Andrew M Allen
- Department of Physiology, The University of Melbourne, Victoria, 3010, Australia
| | - George Paxinos
- Neuroscience Research Australia and School of Medical Sciences, The University of New South Wales, 2031, NSW, Australia
| | - Teri M Furlong
- Neuroscience Research Australia and School of Medical Sciences, The University of New South Wales, 2031, NSW, Australia
| | - Sonja J McKeown
- Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, 3010, Australia. .,Cancer Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Monash University, Victoria, 3800, Australia.
| | - Heather M Young
- Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, 3010, Australia.
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14
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Sergi CM, Caluseriu O, McColl H, Eisenstat DD. Hirschsprung's disease: clinical dysmorphology, genes, micro-RNAs, and future perspectives. Pediatr Res 2017; 81:177-191. [PMID: 27682968 DOI: 10.1038/pr.2016.202] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 09/05/2016] [Indexed: 01/17/2023]
Abstract
On the occasion of the 100th anniversary of Dr. Harald Hirschsprung's death, there is a worldwide significant research effort toward identifying and understanding the role of genes and biochemical pathways involved in the pathogenesis as well as the use of new therapies for the disease harboring his name (Hirschsprung disease, HSCR). HSCR (aganglionic megacolon) is a frequent diagnostic and clinical challenge in perinatology and pediatric surgery, and a major cause of neonatal intestinal obstruction. HSCR is characterized by the absence of ganglia of the enteric nervous system, mostly in the distal gastrointestinal tract. This review focuses on current understanding of genes and pathways associated with HSCR and summarizes recent knowledge related to micro RNAs (miRNAs) and HSCR pathogenesis. While commonly sporadic, Mendelian patterns of inheritance have been described in syndromic cases with HSCR. Although only half of the patients with HSCR have mutations in specific genes related to early embryonic development, recent pathway-based analysis suggests that gene modules with common functions may be associated with HSCR in different populations. This comprehensive profile of functional gene modules may serve as a useful resource for future developmental, biochemical, and genetic studies providing insights into the complex nature of HSCR.
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Affiliation(s)
- Consolato Maria Sergi
- Department of Orthopedics, Wuhan University of Science and Technology, Hubei, P.R. China.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada.,Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Oana Caluseriu
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.,Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
| | - Hunter McColl
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - David D Eisenstat
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.,Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
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15
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Hutchins BI, Kotan LD, Taylor-Burds C, Ozkan Y, Cheng PJ, Gurbuz F, Tiong JDR, Mengen E, Yuksel B, Topaloglu AK, Wray S. CCDC141 Mutation Identified in Anosmic Hypogonadotropic Hypogonadism (Kallmann Syndrome) Alters GnRH Neuronal Migration. Endocrinology 2016; 157:1956-66. [PMID: 27014940 PMCID: PMC4870868 DOI: 10.1210/en.2015-1846] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The first mutation in a gene associated with a neuronal migration disorder was identified in patients with Kallmann Syndrome, characterized by hypogonadotropic hypogonadism and anosmia. This pathophysiological association results from a defect in the development of the GnRH and the olfactory system. A recent genetic screening of Kallmann Syndrome patients revealed a novel mutation in CCDC141. Little is known about CCDC141, which encodes a coiled-coil domain containing protein. Here, we show that Ccdc141 is expressed in GnRH neurons and olfactory fibers and that knockdown of Ccdc141 reduces GnRH neuronal migration. Our findings in human patients and mouse models predict that CCDC141 takes part in embryonic migration of GnRH neurons enabling them to form a hypothalamic neuronal network to initiate pulsatile GnRH secretion and reproductive function.
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Affiliation(s)
- B Ian Hutchins
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - L Damla Kotan
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - Carol Taylor-Burds
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - Yusuf Ozkan
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - Paul J Cheng
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - Fatih Gurbuz
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - Jean D R Tiong
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - Eda Mengen
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - Bilgin Yuksel
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - A Kemal Topaloglu
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - Susan Wray
- National Institute of Neurological Disorders and Stroke (B.I.H., C.T.-B., P.J.C., J.D.R.T., S.W.), National Institutes of Health, Bethesda, Maryland 20892; Department of Biotechnology (L.D.K., A.K.T.), Institute of Sciences, Cukurova University, 01330 Adana, Turkey; Fırat University (Y.O.), 23119 Elazıg, Turkey; and Division of Pediatric Endocrinology (F.G., E.M., B.Y., A.K.T.), Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
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16
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Kevenaar JT, Bianchi S, van Spronsen M, Olieric N, Lipka J, Frias CP, Mikhaylova M, Harterink M, Keijzer N, Wulf PS, Hilbert M, Kapitein LC, de Graaff E, Ahkmanova A, Steinmetz MO, Hoogenraad CC. Kinesin-Binding Protein Controls Microtubule Dynamics and Cargo Trafficking by Regulating Kinesin Motor Activity. Curr Biol 2016; 26:849-61. [PMID: 26948876 DOI: 10.1016/j.cub.2016.01.048] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 12/31/2015] [Accepted: 01/20/2016] [Indexed: 11/24/2022]
Abstract
Kinesin motor proteins play a fundamental role for normal neuronal development by controlling intracellular cargo transport and microtubule (MT) cytoskeleton organization. Regulating kinesin activity is important to ensure their proper functioning, and their misregulation often leads to severe human neurological disorders. Homozygous nonsense mutations in kinesin-binding protein (KBP)/KIAA1279 cause the neurological disorder Goldberg-Shprintzen syndrome (GOSHS), which is characterized by intellectual disability, microcephaly, and axonal neuropathy. Here, we show that KBP regulates kinesin activity by interacting with the motor domains of a specific subset of kinesins to prevent their association with the MT cytoskeleton. The KBP-interacting kinesins include cargo-transporting motors such as kinesin-3/KIF1A and MT-depolymerizing motor kinesin-8/KIF18A. We found that KBP blocks KIF1A/UNC-104-mediated synaptic vesicle transport in cultured hippocampal neurons and in C. elegans PVD sensory neurons. In contrast, depletion of KBP results in the accumulation of KIF1A motors and synaptic vesicles in the axonal growth cone. We also show that KBP regulates neuronal MT dynamics by controlling KIF18A activity. Our data suggest that KBP functions as a kinesin inhibitor that modulates MT-based cargo motility and depolymerizing activity of a subset of kinesin motors. We propose that misregulation of KBP-controlled kinesin motors may represent the underlying molecular mechanism that contributes to the neuropathological defects observed in GOSHS patients.
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Affiliation(s)
- Josta T Kevenaar
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands
| | - Sarah Bianchi
- Laboratory of Biomolecular Research, Department of Biology and Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Myrrhe van Spronsen
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands; Department of Neuroscience, Erasmus Medical Center, 3015 Rotterdam, the Netherlands
| | - Natacha Olieric
- Laboratory of Biomolecular Research, Department of Biology and Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Joanna Lipka
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands; International Institute of Molecular and Cell Biology, 02-1009 Warsaw, Poland
| | - Cátia P Frias
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands
| | - Marina Mikhaylova
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands; RG Neuroplasticity, Leibniz-Institute for Neurobiology, 39118 Magdeburg, Germany
| | - Martin Harterink
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands
| | - Nanda Keijzer
- Department of Neuroscience, Erasmus Medical Center, 3015 Rotterdam, the Netherlands
| | - Phebe S Wulf
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands; Department of Neuroscience, Erasmus Medical Center, 3015 Rotterdam, the Netherlands
| | - Manuel Hilbert
- Laboratory of Biomolecular Research, Department of Biology and Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Lukas C Kapitein
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands; Department of Neuroscience, Erasmus Medical Center, 3015 Rotterdam, the Netherlands
| | - Esther de Graaff
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands; Department of Neuroscience, Erasmus Medical Center, 3015 Rotterdam, the Netherlands
| | - Anna Ahkmanova
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands
| | - Michel O Steinmetz
- Laboratory of Biomolecular Research, Department of Biology and Chemistry, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Casper C Hoogenraad
- Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3584 Utrecht, the Netherlands; Department of Neuroscience, Erasmus Medical Center, 3015 Rotterdam, the Netherlands.
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17
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Moffat JJ, Ka M, Jung EM, Kim WY. Genes and brain malformations associated with abnormal neuron positioning. Mol Brain 2015; 8:72. [PMID: 26541977 PMCID: PMC4635534 DOI: 10.1186/s13041-015-0164-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 10/31/2015] [Indexed: 01/05/2023] Open
Abstract
Neuronal positioning is a fundamental process during brain development. Abnormalities in this process cause several types of brain malformations and are linked to neurodevelopmental disorders such as autism, intellectual disability, epilepsy, and schizophrenia. Little is known about the pathogenesis of developmental brain malformations associated with abnormal neuron positioning, which has hindered research into potential treatments. However, recent advances in neurogenetics provide clues to the pathogenesis of aberrant neuronal positioning by identifying causative genes. This may help us form a foundation upon which therapeutic tools can be developed. In this review, we first provide a brief overview of neural development and migration, as they relate to defects in neuronal positioning. We then discuss recent progress in identifying genes and brain malformations associated with aberrant neuronal positioning during human brain development.
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Affiliation(s)
- Jeffrey J Moffat
- Department of Developmental Neuroscience, Munroe-Meyer Institute, University of Nebraska Medical Center, 985960 Nebraska Medical Center, Omaha, NE, 68198-5960, USA.
| | - Minhan Ka
- Department of Developmental Neuroscience, Munroe-Meyer Institute, University of Nebraska Medical Center, 985960 Nebraska Medical Center, Omaha, NE, 68198-5960, USA.
| | - Eui-Man Jung
- Department of Developmental Neuroscience, Munroe-Meyer Institute, University of Nebraska Medical Center, 985960 Nebraska Medical Center, Omaha, NE, 68198-5960, USA.
| | - Woo-Yang Kim
- Department of Developmental Neuroscience, Munroe-Meyer Institute, University of Nebraska Medical Center, 985960 Nebraska Medical Center, Omaha, NE, 68198-5960, USA.
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18
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Lehti MS, Kotaja N, Sironen A. KIF1-binding protein interacts with KIF3A in haploid male germ cells. Reproduction 2015; 150:209-16. [DOI: 10.1530/rep-15-0173] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Male fertility relies on the production of functional spermatozoa. Spermatogenesis is a complex differentiation process that is characterized by meiosis and dramatic morphogenesis of haploid cells. Spermatogenesis involves active changes in the microtubular network to support meiotic divisions, cell polarization, the reshaping of the nucleus, and the formation of a flagellum. Previously, we have demonstrated that a microtubule-based anterograde transport motor protein KIF3A is required for the sperm tail formation and nuclear shaping during spermatogenesis. In this study, we show that KIF3A interacts with a KIF1-binding protein (KBP) in the mouse testis. We have characterized the expression and localization pattern of KBP during spermatogenesis and localized both KIF3A and KBP in the cytoplasm of round spermatids and manchette of elongating spermatids. Interestingly, KBP localized also in the late chromatoid body (CB) of elongating spermatids, whose function involves intracellular movement and association with the microtubular network. Altogether our results suggest a role for KBP in spermatid elongation and in the function of the late CB.
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19
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Dafsari HS, Byrne S, Lin JP, Pitt M, Jongbloed JDH, Flinter F, Jungbluth H. Goldberg-Shprintzen megacolon syndrome with associated sensory motor axonal neuropathy. Am J Med Genet A 2015; 167:1300-4. [DOI: 10.1002/ajmg.a.36873] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 10/20/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Hormos Salimi Dafsari
- Department of Paediatric Neurology; Evelina's Children Hospital; Guy's & St. Thomas' Hospital NHS Foundation Trust; London UK
| | - Susan Byrne
- Department of Paediatric Neurology; Evelina's Children Hospital; Guy's & St. Thomas' Hospital NHS Foundation Trust; London UK
| | - Jean-Pierre Lin
- Department of Paediatric Neurology; Evelina's Children Hospital; Guy's & St. Thomas' Hospital NHS Foundation Trust; London UK
| | - Matthew Pitt
- Department of Neurophysiology; Great Ormond Street Hospital for Children; London UK
| | - Jan DH Jongbloed
- Department of Genetics; University of Groningen; University Medical Center Groningen; The Netherlands
| | | | - Heinz Jungbluth
- Department of Paediatric Neurology; Evelina's Children Hospital; Guy's & St. Thomas' Hospital NHS Foundation Trust; London UK
- Randall Division for Cell and Molecular Biophysics; Muscle Signalling Section; King's College London UK
- Department of Basic and Clinical Neuroscience; IoPPN; King's College; London UK
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20
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Young HM, Bergner AJ, Simpson MJ, McKeown SJ, Hao MM, Anderson CR, Enomoto H. Colonizing while migrating: how do individual enteric neural crest cells behave? BMC Biol 2014; 12:23. [PMID: 24670214 PMCID: PMC4101823 DOI: 10.1186/1741-7007-12-23] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 03/21/2014] [Indexed: 12/15/2022] Open
Abstract
Background Directed cell migration is essential for normal development. In most of the migratory cell populations that have been analyzed in detail to date, all of the cells migrate as a collective from one location to another. However, there are also migratory cell populations that must populate the areas through which they migrate, and thus some cells get left behind while others advance. Very little is known about how individual cells behave to achieve concomitant directional migration and population of the migratory route. We examined the behavior of enteric neural crest-derived cells (ENCCs), which must both advance caudally to reach the anal end and populate each gut region. Results The behavior of individual ENCCs was examined using live imaging and mice in which ENCCs express a photoconvertible protein. We show that individual ENCCs exhibit very variable directionalities and speed; as the migratory wavefront of ENCCs advances caudally, each gut region is populated primarily by some ENCCs migrating non-directionally. After populating each region, ENCCs remain migratory for at least 24 hours. Endothelin receptor type B (EDNRB) signaling is known to be essential for the normal advance of the ENCC population. We now show that perturbation of EDNRB principally affects individual ENCC speed rather than directionality. The trajectories of solitary ENCCs, which occur transiently at the wavefront, were consistent with an unbiased random walk and so cell-cell contact is essential for directional migration. ENCCs migrate in close association with neurites. We showed that although ENCCs often use neurites as substrates, ENCCs lead the way, neurites are not required for chain formation and neurite growth is more directional than the migration of ENCCs as a whole. Conclusions Each gut region is initially populated by sub-populations of ENCCs migrating non-directionally, rather than stopping. This might provide a mechanism for ensuring a uniform density of ENCCs along the growing gut.
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Affiliation(s)
- Heather M Young
- Department of Anatomy & Neuroscience, University of Melbourne, Melbourne 3010 VIC, Australia.
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Mutations in KPTN cause macrocephaly, neurodevelopmental delay, and seizures. Am J Hum Genet 2014; 94:87-94. [PMID: 24239382 PMCID: PMC3882725 DOI: 10.1016/j.ajhg.2013.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 09/24/2013] [Accepted: 10/01/2013] [Indexed: 01/31/2023] Open
Abstract
The proper development of neuronal circuits during neuromorphogenesis and neuronal-network formation is critically dependent on a coordinated and intricate series of molecular and cellular cues and responses. Although the cortical actin cytoskeleton is known to play a key role in neuromorphogenesis, relatively little is known about the specific molecules important for this process. Using linkage analysis and whole-exome sequencing on samples from families from the Amish community of Ohio, we have demonstrated that mutations in KPTN, encoding kaptin, cause a syndrome typified by macrocephaly, neurodevelopmental delay, and seizures. Our immunofluorescence analyses in primary neuronal cell cultures showed that endogenous and GFP-tagged kaptin associates with dynamic actin cytoskeletal structures and that this association is lost upon introduction of the identified mutations. Taken together, our studies have identified kaptin alterations responsible for macrocephaly and neurodevelopmental delay and define kaptin as a molecule crucial for normal human neuromorphogenesis.
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