1
|
Terhune EA, Cuevas MT, Monley AM, Wethey CI, Chen X, Cattell MV, Bayrak MN, Bland MR, Sutphin B, Trahan GD, Taylor MRG, Niswander LA, Jones KL, Baschal EE, Antunes L, Dobbs M, Gurnett C, Appel B, Gray R, Hadley Miller N. Mutations in KIF7 implicated in idiopathic scoliosis in humans and axial curvatures in zebrafish. Hum Mutat 2021; 42:392-407. [PMID: 33382518 DOI: 10.1002/humu.24162] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 09/02/2020] [Accepted: 12/11/2020] [Indexed: 12/22/2022]
Abstract
Idiopathic scoliosis (IS) is a spinal disorder affecting up to 3% of otherwise healthy children. IS has a strong familial genetic component and is believed to be genetically complex due to significant variability in phenotype and heritability. Previous studies identified putative loci and variants possibly contributing to IS susceptibility, including within extracellular matrix, cilia, and actin networks, but the genetic architecture and underlying mechanisms remain unresolved. Here, we used whole-exome sequencing from three affected individuals in a multigenerational family with IS and identified 19 uncommon variants (minor allele frequency < 0.05). Genotyping of additional family members identified a candidate heterozygous variant (H1115Q, G>C, rs142032413) within the ciliary gene KIF7, a regulator within the hedgehog (Hh) signaling pathway. Resequencing of the second cohort of unrelated IS individuals and controls identified several severe mutations in KIF7 in affected individuals only. Subsequently, we generated a mutant zebrafish model of kif7 using CRISPR-Cas9. kif7co63/co63 zebrafish displayed severe scoliosis, presenting in juveniles and progressing through adulthood. We observed no deformities in the brain, Reissner fiber, or central canal cilia in kif7co63/co63 embryos, although alterations were seen in Hh pathway gene expression. This study suggests defects in KIF7-dependent Hh signaling, which may drive pathogenesis in a subset of individuals with IS.
Collapse
Affiliation(s)
- Elizabeth A Terhune
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Melissa T Cuevas
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Anna M Monley
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Musculoskeletal Research Center, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Cambria I Wethey
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Xiaomi Chen
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Maria V Cattell
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Melisa N Bayrak
- Department of Nutritional Sciences, Dell Pediatrics Research Institute, The University of Texas at Austin, Austin, Texas, USA
| | - Morgan R Bland
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Brittan Sutphin
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - George Devon Trahan
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Matthew R G Taylor
- Department of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lee A Niswander
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, Colorado, USA
| | - Kenneth L Jones
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Erin E Baschal
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lilian Antunes
- Department of Orthopedics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Matthew Dobbs
- Department of Orthopedics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Christina Gurnett
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Bruce Appel
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, Colorado, USA
| | - Ryan Gray
- Department of Nutritional Sciences, Dell Pediatrics Research Institute, The University of Texas at Austin, Austin, Texas, USA
| | - Nancy Hadley Miller
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Musculoskeletal Research Center, Children's Hospital Colorado, Aurora, Colorado, USA
| |
Collapse
|
2
|
Bozal-Basterra L, Gonzalez-Santamarta M, Muratore V, Bermejo-Arteagabeitia A, Da Fonseca C, Barroso-Gomila O, Azkargorta M, Iloro I, Pampliega O, Andrade R, Martín-Martín N, Branon TC, Ting AY, Rodríguez JA, Carracedo A, Elortza F, Sutherland JD, Barrio R. LUZP1, a novel regulator of primary cilia and the actin cytoskeleton, is a contributing factor in Townes-Brocks Syndrome. eLife 2020; 9:e55957. [PMID: 32553112 PMCID: PMC7363444 DOI: 10.7554/elife.55957] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 06/18/2020] [Indexed: 12/20/2022] Open
Abstract
Primary cilia are sensory organelles crucial for cell signaling during development and organ homeostasis. Cilia arise from centrosomes and their formation and function is governed by numerous factors. Through our studies on Townes-Brocks Syndrome (TBS), a rare disease linked to abnormal cilia formation in human fibroblasts, we uncovered the leucine-zipper protein LUZP1 as an interactor of truncated SALL1, a dominantly-acting protein causing the disease. Using TurboID proximity labeling and pulldowns, we show that LUZP1 associates with factors linked to centrosome and actin filaments. Here, we show that LUZP1 is a cilia regulator. It localizes around the centrioles and to actin cytoskeleton. Loss of LUZP1 reduces F-actin levels, facilitates ciliogenesis and alters Sonic Hedgehog signaling, pointing to a key role in cytoskeleton-cilia interdependency. Truncated SALL1 increases the ubiquitin proteasome-mediated degradation of LUZP1. Together with other factors, alterations in LUZP1 may be contributing to TBS etiology.
Collapse
Affiliation(s)
- Laura Bozal-Basterra
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
| | - María Gonzalez-Santamarta
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
| | - Veronica Muratore
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
| | - Aitor Bermejo-Arteagabeitia
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
| | - Carolina Da Fonseca
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
| | - Orhi Barroso-Gomila
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
| | - Mikel Azkargorta
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
- CIBERehd, Instituto de Salud Carlos IIIMadridSpain
- ProteoRed-ISCIII, Instituto de Salud Carlos IIIMadridSpain
| | - Ibon Iloro
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
- CIBERehd, Instituto de Salud Carlos IIIMadridSpain
- ProteoRed-ISCIII, Instituto de Salud Carlos IIIMadridSpain
| | - Olatz Pampliega
- Department of Neurosciences, University of the Basque Country, Achucarro Basque Center for Neuroscience-UPV/EHULeioaSpain
| | - Ricardo Andrade
- Analytical & High Resolution Biomedical Microscopy Core Facility, University of the Basque Country (UPV/EHU)LeioaSpain
| | - Natalia Martín-Martín
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
| | - Tess C Branon
- Department of Chemistry, Massachusetts Institute of TechnologyCambridgeUnited States
- Departments of Genetics, Chemistry and Biology, Stanford UniversityStanfordUnited States
| | - Alice Y Ting
- Department of Chemistry, Massachusetts Institute of TechnologyCambridgeUnited States
- Departments of Genetics, Chemistry and Biology, Stanford UniversityStanfordUnited States
- Chan Zuckerberg BiohubSan FranciscoUnited States
| | - Jose A Rodríguez
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU)LeioaSpain
| | - Arkaitz Carracedo
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
- CIBERONC, Instituto de Salud Carlos IIIMadridSpain
- Ikerbasque, Basque Foundation for ScienceBilbaoSpain
- Biochemistry and Molecular Biology Department, University of the Basque Country (UPV/EHU)BilbaoSpain
| | - Felix Elortza
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
- CIBERehd, Instituto de Salud Carlos IIIMadridSpain
- ProteoRed-ISCIII, Instituto de Salud Carlos IIIMadridSpain
| | - James D Sutherland
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
| | - Rosa Barrio
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology ParkDerioSpain
| |
Collapse
|
3
|
Fowler DA, Larsson HCE. The tissues and regulatory pattern of limb chondrogenesis. Dev Biol 2020; 463:124-134. [PMID: 32417169 DOI: 10.1016/j.ydbio.2020.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 12/24/2022]
Abstract
Initial limb chondrogenesis offers the first differentiated tissues that resemble the mature skeletal anatomy. It is a developmental progression of three tissues. The limb begins with undifferentiated mesenchyme-1, some of which differentiates into condensations-2, and this tissue then transforms into cartilage-3. Each tissue is identified by physical characteristics of cell density, shape, and extracellular matrix composition. Tissue specific regimes of gene regulation underlie the diagnostic physical and chemical properties of these three tissues. These three tissue based regimes co-exist amid a background of other gene regulatory regimes within the same tissues and time-frame of limb development. The bio-molecular indicators of gene regulation reveal six identifiable patterns. Three of these patterns describe the unique bio-molecular indicators of each of the three tissues. A fourth pattern shares bio-molecular indicators between condensation and cartilage. Finally, a fifth pattern is composed of bio-molecular indicators that are found in undifferentiated mesenchyme prior to any condensation differentiation, then these bio-molecular indicators are upregulated in condensations and downregulated in undifferentiated mesenchyme. The undifferentiated mesenchyme that remains in between the condensations and cartilage, the interdigit, contains a unique set of bio-molecular indicators that exhibit dynamic behaviour during chondrogenesis and therefore argue for its own inclusion as a tissue in its own right and for more study into this process of differentiation.
Collapse
Affiliation(s)
- Donald A Fowler
- Redpath Museum, McGill University, 859 Sherbrooke St W, Montréal, QC, H3A 0C4, Canada; Department of Biology, McGill University, Stewart Biology Building, 1205 Docteur Penfield, Montréal, QC, H3A 1B1, Canada.
| | - Hans C E Larsson
- Redpath Museum, McGill University, 859 Sherbrooke St W, Montréal, QC, H3A 0C4, Canada.
| |
Collapse
|
4
|
Zheng L, Rui C, Zhang H, Chen J, Jia X, Xiao Y. Sonic hedgehog signaling in epithelial tissue development. Regen Med Res 2019; 7:3. [PMID: 31898580 PMCID: PMC6941452 DOI: 10.1051/rmr/190004] [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: 11/09/2019] [Accepted: 12/09/2019] [Indexed: 12/16/2022] Open
Abstract
The Sonic hedgehog (SHH) signaling pathway is essential for embryonic development and tissue regeneration. The dysfunction of SHH pathway is involved in a variety of diseases, including cancer, birth defects, and other diseases. Here we reviewed recent studies on main molecules involved in the SHH signaling pathway, specifically focused on their function in epithelial tissue and appendages development, including epidermis, touch dome, hair, sebaceous gland, mammary gland, tooth, nail, gastric epithelium, and intestinal epithelium. The advance in understanding the SHH signaling pathway will give us more clues to the mechanisms of tissue repair and regeneration, as well as the development of new treatment for diseases related to dysregulation of SHH signaling pathway.
Collapse
Affiliation(s)
- Lu Zheng
-
Central Lab of Biomedical Research Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University Hangzhou PR China
| | - Chen Rui
-
Central Lab of Biomedical Research Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University Hangzhou PR China
| | - Hao Zhang
-
Central Lab of Biomedical Research Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University Hangzhou PR China
| | - Jing Chen
-
Central Lab of Biomedical Research Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University Hangzhou PR China
| | - Xiuzhi Jia
-
Central Lab of Biomedical Research Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University Hangzhou PR China
| | - Ying Xiao
-
Central Lab of Biomedical Research Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University Hangzhou PR China
| |
Collapse
|
5
|
Recent Insights into Long Bone Development: Central Role of Hedgehog Signaling Pathway in Regulating Growth Plate. Int J Mol Sci 2019; 20:ijms20235840. [PMID: 31757091 PMCID: PMC6928971 DOI: 10.3390/ijms20235840] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 11/17/2019] [Accepted: 11/18/2019] [Indexed: 12/30/2022] Open
Abstract
The longitudinal growth of long bone, regulated by an epiphyseal cartilaginous component known as the “growth plate”, is generated by epiphyseal chondrocytes. The growth plate provides a continuous supply of chondrocytes for endochondral ossification, a sequential bone replacement of cartilaginous tissue, and any failure in this process causes a wide range of skeletal disorders. Therefore, the cellular and molecular characteristics of the growth plate are of interest to many researchers. Hedgehog (Hh), well known as a mitogen and morphogen during development, is one of the best known regulatory signals in the developmental regulation of the growth plate. Numerous animal studies have revealed that signaling through the Hh pathway plays multiple roles in regulating the proliferation, differentiation, and maintenance of growth plate chondrocytes throughout the skeletal growth period. Furthermore, over the past few years, a growing body of evidence has emerged demonstrating that a limited number of growth plate chondrocytes transdifferentiate directly into the full osteogenic and multiple mesenchymal lineages during postnatal bone development and reside in the bone marrow until late adulthood. Current studies with the genetic fate mapping approach have shown that the commitment of growth plate chondrocytes into the skeletal lineage occurs under the influence of epiphyseal chondrocyte-derived Hh signals during endochondral bone formation. Here, we discuss the valuable observations on the role of the Hh signaling pathway in the growth plate based on mouse genetic studies, with some emphasis on recent advances.
Collapse
|
6
|
Guéro S. Developmental biology of the upper limb. HAND SURGERY & REHABILITATION 2018; 37:265-274. [PMID: 30041930 DOI: 10.1016/j.hansur.2018.03.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/12/2018] [Accepted: 03/12/2018] [Indexed: 11/18/2022]
Abstract
This article aims to provide hand surgeons with current knowledge on the developmental biology of the upper limb. It will review positioning, limb bud emergence and formation of the apical ectodermal ridge. The development of the limb bud is analyzed in its three axes: proximal-distal, anteroposterior and dorsoventral. The signaling center and primary morphogens that initiate and stimulate the development of each axis will be described. For the proximal-distal axis, the apical ectodermal ridge stimulates the production of FGFs in the underlying distal mesoderm. The anteroposterior (or radio-ulnar) differentiation is a function of the zone of polarizing activity via the small Sonic hedgehog protein, which diffuses in a decreasing concentration gradient from the ulnar to the radial side of the bud. This gradient is essential to digit identity and numbers. For the dorsoventral differentiation, the signaling center is the dorsal ectoderm, which secretes WNT7A. Limb segmentation is described in three parts (arm, forearm and hand) along with the formation of the digital rays until finger separation. An example of congenital anomalies is provided for each step. To keep the length of this lecture within reason, the embryogenesis of nerves, blood vessels, muscles and tendons will not be discussed. On the other hand, the singularity of the thumb relative to the other fingers will be described. With a better understanding of developmental biology, surgeons should have better insight into congenital anomalies of the upper limb. This approach is the basis for the new OMT classification used by the IFFSH.
Collapse
Affiliation(s)
- S Guéro
- Institut de la Main, Clinique Bizet, 22, rue Georges-Bizet, 75116 Paris, France; Hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75015 Paris, France.
| |
Collapse
|
7
|
Bickelmann C, Frota-Lima GN, Triepel SK, Kawaguchi A, Schneider I, Fröbisch NB. Noncanonical Hox, Etv4, and Gli3 gene activities give insight into unique limb patterning in salamanders. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2018; 330:138-147. [PMID: 29602205 DOI: 10.1002/jez.b.22798] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 03/02/2018] [Accepted: 03/02/2018] [Indexed: 01/08/2023]
Abstract
Limb development in salamanders is unique among tetrapods in significant ways. Not only can salamanders regenerate lost limbs repeatedly and throughout their lives, but also the preaxial zeugopodial element and digits form before the postaxial ones and, hence, with a reversed polarity compared to all other tetrapods. Moreover, in salamanders with free-swimming larval stages, as exemplified by the axolotl (Ambystoma mexicanum), each digit buds independently, instead of undergoing a paddle stage. Here, we report gene expression patterns of Hoxa and d clusters, and other crucial transcription factors during axolotl limb development. During early phases of limb development, expression patterns are mostly similar to those reported for amniotes and frogs. Likewise, Hoxd and Shh regulatory landscapes are largely conserved. However, during late digit-budding phases, remarkable differences are present: (i) the Hoxd13 expression domain excludes developing digits I and IV, (ii) we expand upon previous observation that Hoxa11 expression, which traditionally marks the zeugopodium, extends distally into the developing digits, and (iii) Gli3 and Etv4 show prolonged expression in developing digits. Our findings identify derived patterns in the expression of key transcription factors during late phases of salamander limb development, and provide the basis for a better understanding of the unique patterning of salamander limbs.
Collapse
Affiliation(s)
- Constanze Bickelmann
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin, Germany
| | - Gabriela Neiva Frota-Lima
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin, Germany.,Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Sandra Karla Triepel
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin, Germany
| | - Akane Kawaguchi
- Research Institute of Molecular Pathology, Campus Vienna Biocenter 1, Vienna, Austria
| | - Igor Schneider
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Nadia Belinda Fröbisch
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin, Germany.,Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
| |
Collapse
|
8
|
De Mori R, Romani M, D'Arrigo S, Zaki MS, Lorefice E, Tardivo S, Biagini T, Stanley V, Musaev D, Fluss J, Micalizzi A, Nuovo S, Illi B, Chiapparini L, Di Marcotullio L, Issa MY, Anello D, Casella A, Ginevrino M, Leggins AS, Roosing S, Alfonsi R, Rosati J, Schot R, Mancini GMS, Bertini E, Dobyns WB, Mazza T, Gleeson JG, Valente EM. Hypomorphic Recessive Variants in SUFU Impair the Sonic Hedgehog Pathway and Cause Joubert Syndrome with Cranio-facial and Skeletal Defects. Am J Hum Genet 2017; 101:552-563. [PMID: 28965847 DOI: 10.1016/j.ajhg.2017.08.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 08/21/2017] [Indexed: 01/20/2023] Open
Abstract
The Sonic Hedgehog (SHH) pathway is a key signaling pathway orchestrating embryonic development, mainly of the CNS and limbs. In vertebrates, SHH signaling is mediated by the primary cilium, and genetic defects affecting either SHH pathway members or ciliary proteins cause a spectrum of developmental disorders. SUFU is the main negative regulator of the SHH pathway and is essential during development. Indeed, Sufu knock-out is lethal in mice, and recessive pathogenic variants of this gene have never been reported in humans. Through whole-exome sequencing in subjects with Joubert syndrome, we identified four children from two unrelated families carrying homozygous missense variants in SUFU. The children presented congenital ataxia and cerebellar vermis hypoplasia with elongated superior cerebellar peduncles (mild "molar tooth sign"), typical cranio-facial dysmorphisms (hypertelorism, depressed nasal bridge, frontal bossing), and postaxial polydactyly. Two siblings also showed polymicrogyria. Molecular dynamics simulation predicted random movements of the mutated residues, with loss of the native enveloping movement of the binding site around its ligand GLI3. Functional studies on cellular models and fibroblasts showed that both variants significantly reduced SUFU stability and its capacity to bind GLI3 and promote its cleavage into the repressor form GLI3R. In turn, this impaired SUFU-mediated repression of the SHH pathway, as shown by altered expression levels of several target genes. We demonstrate that germline hypomorphic variants of SUFU cause deregulation of SHH signaling, resulting in recessive developmental defects of the CNS and limbs which share features with both SHH-related disorders and ciliopathies.
Collapse
MESH Headings
- Abnormalities, Multiple/genetics
- Abnormalities, Multiple/pathology
- Bone Diseases, Developmental/genetics
- Bone Diseases, Developmental/pathology
- Cells, Cultured
- Cerebellum/abnormalities
- Cerebellum/pathology
- Child
- Cohort Studies
- Craniofacial Abnormalities/genetics
- Craniofacial Abnormalities/pathology
- Eye Abnormalities/genetics
- Eye Abnormalities/pathology
- Female
- Fibroblasts/metabolism
- Fibroblasts/pathology
- Gene Expression Regulation, Developmental
- Genes, Recessive
- Hedgehog Proteins/metabolism
- Humans
- Kidney Diseases, Cystic/genetics
- Kidney Diseases, Cystic/pathology
- Kruppel-Like Transcription Factors/metabolism
- Male
- Mutation, Missense
- Nerve Tissue Proteins/metabolism
- Repressor Proteins/chemistry
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Retina/abnormalities
- Retina/pathology
- Sequence Analysis, DNA
- Signal Transduction
- Skin/metabolism
- Skin/pathology
- Zinc Finger Protein Gli3
Collapse
Affiliation(s)
- Roberta De Mori
- Neurogenetics Unit, IRCCS Santa Lucia Foundation, Rome 00143, Italy; Department of Biological and Environmental Sciences, University of Messina, Messina 98125, Italy
| | - Marta Romani
- Molecular Genetics Laboratory, GENOMA Group, Rome 00138, Italy
| | - Stefano D'Arrigo
- Developmental Neurology Division, Foundation IRCCS Neurological Institute Carlo Besta, Milan 20133, Italy
| | - Maha S Zaki
- Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo 12311, Egypt
| | - Elisa Lorefice
- Neurogenetics Unit, IRCCS Santa Lucia Foundation, Rome 00143, Italy
| | - Silvia Tardivo
- Neurogenetics Unit, IRCCS Santa Lucia Foundation, Rome 00143, Italy
| | - Tommaso Biagini
- IRCCS Casa Sollievo della Sofferenza, Laboratory of Bioinformatics, San Giovanni Rotondo (FG) 71013, Italy
| | - Valentina Stanley
- Laboratory for Pediatric Brain Diseases, Rady Children's Institute for Genomic Medicine, University of California, San Diego, Howard Hughes Medical Institute, La Jolla, CA 92037, USA
| | - Damir Musaev
- Laboratory for Pediatric Brain Diseases, Rady Children's Institute for Genomic Medicine, University of California, San Diego, Howard Hughes Medical Institute, La Jolla, CA 92037, USA
| | - Joel Fluss
- Pediatric Neurology Unit, Geneva Children's Hospital, 1211 Genève 4, Switzerland
| | - Alessia Micalizzi
- Neurogenetics Unit, IRCCS Santa Lucia Foundation, Rome 00143, Italy; Department of Biological and Environmental Sciences, University of Messina, Messina 98125, Italy
| | - Sara Nuovo
- Neurogenetics Unit, IRCCS Santa Lucia Foundation, Rome 00143, Italy; Department of Medicine and Surgery, University of Salerno, Salerno 84081, Italy
| | - Barbara Illi
- Institute of Molecular Biology and Pathology, National Research Council, Rome 00185, Italy
| | - Luisa Chiapparini
- Neuroradiology Department, Foundation IRCCS Neurological Institute Carlo Besta, Milan 20133, Italy
| | - Lucia Di Marcotullio
- Department of Molecular Medicine and Istituto Pasteur Fondazione Cenci Bolognetti, Sapienza University, Rome 00161, Italy
| | - Mahmoud Y Issa
- Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo 12311, Egypt
| | - Danila Anello
- Neurogenetics Unit, IRCCS Santa Lucia Foundation, Rome 00143, Italy
| | | | - Monia Ginevrino
- Neurogenetics Unit, IRCCS Santa Lucia Foundation, Rome 00143, Italy; Department of Molecular Medicine, University of Pavia, Pavia 27100, Italy
| | - Autumn Sa'na Leggins
- Laboratory for Pediatric Brain Diseases, Rady Children's Institute for Genomic Medicine, University of California, San Diego, Howard Hughes Medical Institute, La Jolla, CA 92037, USA
| | - Susanne Roosing
- Department of Human Genetics, Radboud University Medical Center, Nijmegen 6525 GA, the Netherlands
| | - Romina Alfonsi
- Department of Molecular Medicine and Istituto Pasteur Fondazione Cenci Bolognetti, Sapienza University, Rome 00161, Italy
| | - Jessica Rosati
- IRCCS Casa Sollievo della Sofferenza, Laboratory of Cellular Reprogramming, San Giovanni Rotondo (FG) 71013, Italy
| | - Rachel Schot
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam 3015 CN, the Netherlands
| | | | - Enrico Bertini
- Laboratory of Molecular Medicine, Unit of Neuromuscular and NeuroDegenerative Disorders, Department of Neurosciences, Bambino Gesù Children's Hospital IRCCS, Rome 00146, Italy
| | - William B Dobyns
- Departments of Pediatrics and Neurology, University of Washington, Seattle, WA 98101, USA; Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Tommaso Mazza
- IRCCS Casa Sollievo della Sofferenza, Laboratory of Bioinformatics, San Giovanni Rotondo (FG) 71013, Italy
| | - Joseph G Gleeson
- Laboratory for Pediatric Brain Diseases, Rady Children's Institute for Genomic Medicine, University of California, San Diego, Howard Hughes Medical Institute, La Jolla, CA 92037, USA
| | - Enza Maria Valente
- Neurogenetics Unit, IRCCS Santa Lucia Foundation, Rome 00143, Italy; Department of Molecular Medicine, University of Pavia, Pavia 27100, Italy.
| |
Collapse
|
9
|
Hoelzl MA, Heby-Henricson K, Gerling M, Dias JM, Kuiper RV, Trünkle C, Bergström Å, Ericson J, Toftgård R, Teglund S. Differential requirement of SUFU in tissue development discovered in a hypomorphic mouse model. Dev Biol 2017; 429:132-146. [PMID: 28688895 DOI: 10.1016/j.ydbio.2017.06.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 06/30/2017] [Accepted: 06/30/2017] [Indexed: 01/20/2023]
Abstract
Suppressor of Fused (SUFU) is an essential negative regulator of the Hedgehog (HH) pathway and involved in GLI transcription factor regulation. Due to early embryonic lethality of Sufu-/- mice, investigations of SUFU's role later in development are limited to conditional, tissue-specific knockout models. In this study we developed a mouse model (SufuEx456(fl)/Ex456(fl)) with hypomorphic features where embryos were viable up to E18.5, although with a spectrum of developmental defects of varying severity, including polydactyly, exencephaly and omphalocele. Development of certain tissues, like the skeleton, was more affected than that of others such as skin, which remained largely normal. Interestingly, no apparent changes in the dorso-ventral patterning of the neural tube at E9.0 could be seen. Thus, this model provides an opportunity to globally study SUFU's molecular function in organogenesis beyond E9.5. Molecularly, SufuEx456(fl)/Ex456(fl) embryos displayed aberrant mRNA splicing and drastically reduced levels of Sufu wild-type mRNA and SUFU protein in all tissues. As a consequence, at E9.5 the levels of all three different GLI proteins were reduced. Interestingly, despite the reduction of GLI3 protein levels, the critical ratio of the GLI3 full-length transcriptional activator versus GLI3 truncated repressor remained unchanged compared to wild-type embryos. This suggests that the limited amount of SUFU protein present is sufficient for GLI processing but not for stabilization. Our data demonstrate that tissue development is differentially affected in response to the reduced SUFU levels, providing novel insight regarding the requirements of different levels of SUFU for proper organogenesis.
Collapse
Affiliation(s)
- Maria A Hoelzl
- Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 83 Huddinge, Sweden.
| | - Karin Heby-Henricson
- Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 83 Huddinge, Sweden
| | - Marco Gerling
- Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 83 Huddinge, Sweden
| | - José M Dias
- Department of Cell and Molecular Biology, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Raoul V Kuiper
- Department of Laboratory Medicine, Karolinska Institutet, SE-141 86 Huddinge, Sweden
| | - Cornelius Trünkle
- Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 83 Huddinge, Sweden
| | - Åsa Bergström
- Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 83 Huddinge, Sweden
| | - Johan Ericson
- Department of Cell and Molecular Biology, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Rune Toftgård
- Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 83 Huddinge, Sweden
| | - Stephan Teglund
- Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 83 Huddinge, Sweden.
| |
Collapse
|
10
|
Matsubara Y, Nakano M, Kawamura K, Tsudzuki M, Funahashi JI, Agata K, Matsuda Y, Kuroiwa A, Suzuki T. Inactivation of Sonic Hedgehog Signaling and Polydactyly in Limbs of Hereditary Multiple Malformation, a Novel Type of Talpid Mutant. Front Cell Dev Biol 2016; 4:149. [PMID: 28083533 PMCID: PMC5187386 DOI: 10.3389/fcell.2016.00149] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 12/13/2016] [Indexed: 12/26/2022] Open
Abstract
Hereditary Multiple Malformation (HMM) is a naturally occurring, autosomal recessive, homozygous lethal mutation found in Japanese quail. Homozygote embryos (hmm−/−) show polydactyly similar to talpid2 and talpid3 mutants. Here we characterize the molecular profile of the hmm−/− limb bud and identify the cellular mechanisms that cause its polydactyly. The hmm−/− limb bud shows a severe lack of sonic hedgehog (SHH) signaling, and the autopod has 4 to 11 unidentifiable digits with syn-, poly-, and brachydactyly. The Zone of Polarizing Activity (ZPA) of the hmm−/− limb bud does not show polarizing activity regardless of the presence of SHH protein, indicating that either the secretion pathway of SHH is defective or the SHH protein is dysfunctional. Furthermore, mesenchymal cells in the hmm−/− limb bud do not respond to ZPA transplanted from the normal limb bud, suggesting that signal transduction downstream of SHH is also defective. Since primary cilia are present in the hmm−/− limb bud, the causal gene must be different from talpid2 and talpid3. In the hmm−/− limb bud, a high amount of GLI3A protein is expressed and GLI3 protein is localized to the nucleus. Our results suggest that the regulatory mechanism of GLI3 is disorganized in the hmm−/− limb bud.
Collapse
Affiliation(s)
- Yoshiyuki Matsubara
- Division of Biological Science, Graduate School of Science, Nagoya University Nagoya, Japan
| | - Mikiharu Nakano
- Avian Bioscience Research Center, Graduate School of Bioagricultural Sciences, Nagoya University Nagoya, Japan
| | - Kazuki Kawamura
- Division of Biological Science, Graduate School of Science, Nagoya University Nagoya, Japan
| | - Masaoki Tsudzuki
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University Hiroshima, Japan
| | - Jun-Ichi Funahashi
- Institute of Development, Aging and Cancer, Tohoku University Sendai, Japan
| | - Kiyokazu Agata
- Department of Biophysics, Graduate School of Science, Kyoto University Kyoto, Japan
| | - Yoichi Matsuda
- Avian Bioscience Research Center, Graduate School of Bioagricultural Sciences, Nagoya UniversityNagoya, Japan; Laboratory of Animal Genetics, Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya UniversityNagoya, Japan
| | - Atsushi Kuroiwa
- Division of Biological Science, Graduate School of Science, Nagoya University Nagoya, Japan
| | - Takayuki Suzuki
- Division of Biological Science, Graduate School of Science, Nagoya University Nagoya, Japan
| |
Collapse
|
11
|
Emechebe U, Kumar P P, Rozenberg JM, Moore B, Firment A, Mirshahi T, Moon AM. T-box3 is a ciliary protein and regulates stability of the Gli3 transcription factor to control digit number. eLife 2016; 5. [PMID: 27046536 PMCID: PMC4829432 DOI: 10.7554/elife.07897] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 03/05/2016] [Indexed: 12/17/2022] Open
Abstract
Crucial roles for T-box3 in development are evident by severe limb malformations and other birth defects caused by T-box3 mutations in humans. Mechanisms whereby T-box3 regulates limb development are poorly understood. We discovered requirements for T-box at multiple stages of mouse limb development and distinct molecular functions in different tissue compartments. Early loss of T-box3 disrupts limb initiation, causing limb defects that phenocopy Sonic Hedgehog (Shh) mutants. Later ablation of T-box3 in posterior limb mesenchyme causes digit loss. In contrast, loss of anterior T-box3 results in preaxial polydactyly, as seen with dysfunction of primary cilia or Gli3-repressor. Remarkably, T-box3 is present in primary cilia where it colocalizes with Gli3. T-box3 interacts with Kif7 and is required for normal stoichiometry and function of a Kif7/Sufu complex that regulates Gli3 stability and processing. Thus, T-box3 controls digit number upstream of Shh-dependent (posterior mesenchyme) and Shh-independent, cilium-based (anterior mesenchyme) Hedgehog pathway function. DOI:http://dx.doi.org/10.7554/eLife.07897.001 Mutations in the gene that encodes a protein called T-box3 cause serious birth defects, including deformities of the hands and feet, via poorly understood mechanisms. Several other proteins are also important for ensuring that limbs develop correctly. These include the Sonic Hedgehog protein, which controls a signaling pathway that determines whether a protein called Gli3 is converted into its “repressor” form. The hair-like structures called primary cilia that sit on the surface of animal cells also contain Gli3, and processes within these structures control the production of the Gli3-repressor. Emechebe, Kumar et al. have now studied genetically engineered mice in which the production of the T-box3 protein was stopped at different stages of mouse development. This revealed that turning off T-box3 production early in development causes many parts of the limb not to form. This type of defect appears to be the same as that seen in mice that lack the Sonic Hedgehog protein. If the production of T-box3 is turned off later in mouse development in the rear portion of the developing limb, the limb starts to develop but doesn’t develop enough rear toes. When T-box3 production is turned off in the front portion of the developing limbs, mice are born with too many front toes. This latter problem mimics the effects seen in mice that are unable to produce Gli3-repressor or that have defective primary cilia. Further investigation unexpectedly revealed that T-box3 is found in primary cilia and localizes to the same regions of the cilia as the Gli3-repressor. Furthermore, T-box3 also interacts with a protein complex that controls the stability of Gli3 and processes it into the Gli3-repressor form. In the future, it will be important to determine how T-box3 controls the stability of Gli3 and whether that process occurs in the primary cilia or in other parts of the cell where T-box3 and Gli3 coexist, such as the nucleus. This could help us understand how T-box3 and Sonic Hedgehog signaling contribute to other aspects of development and to certain types of cancer. DOI:http://dx.doi.org/10.7554/eLife.07897.002
Collapse
Affiliation(s)
- Uchenna Emechebe
- Department of Neurobiology and Anatomy, University of Utah, Salt Lake City, United States
| | - Pavan Kumar P
- Weis Center for Research, Geisinger Clinic, Danville, United States
| | | | - Bryn Moore
- Weis Center for Research, Geisinger Clinic, Danville, United States
| | - Ashley Firment
- Weis Center for Research, Geisinger Clinic, Danville, United States
| | - Tooraj Mirshahi
- Weis Center for Research, Geisinger Clinic, Danville, United States
| | - Anne M Moon
- Department of Neurobiology and Anatomy, University of Utah, Salt Lake City, United States.,Weis Center for Research, Geisinger Clinic, Danville, United States.,Department of Human Genetics, University of Utah, Salt Lake City, United States.,Department of Pediatrics, University of Utah, Salt Lake City, United States
| |
Collapse
|
12
|
The many lives of SHH in limb development and evolution. Semin Cell Dev Biol 2016; 49:116-24. [DOI: 10.1016/j.semcdb.2015.12.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 12/21/2015] [Accepted: 12/23/2015] [Indexed: 01/17/2023]
|
13
|
Trainor PA, Johnson RL. Organogenesis special issue - preface. Dev Dyn 2015; 244:225-6. [PMID: 25641416 DOI: 10.1002/dvdy.24257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 01/27/2015] [Indexed: 11/06/2022] Open
Affiliation(s)
- Paul A Trainor
- Stowers Institute for Medical Research, Kansas City, Missouri; Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas
| | | |
Collapse
|
14
|
Ibisler A, Hehr U, Barth A, Koch M, Epplen JT, Hoffjan S. Novel KIF7 Mutation in a Tunisian Boy with Acrocallosal Syndrome: Case Report and Review of the Literature. Mol Syndromol 2015; 6:173-80. [PMID: 26648833 DOI: 10.1159/000439414] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2015] [Indexed: 12/14/2022] Open
Abstract
Acrocallosal syndrome (ACLS) is a rare autosomal recessive disorder characterized by agenesis of the corpus callosum, facial dysmorphism, postaxial polydactyly of the hands as well as preaxial polydactyly of the feet, and developmental delay. Mutations in the KIF7 gene, encoding a molecule within the Sonic hedgehog (SHH) pathway, have been identified as causative for ACLS but also for the fatal hydrolethalus syndrome and some cases of Joubert syndrome. We report here on a Tunisian boy who shows the clinical characteristics of ACLS and was found to have a novel homozygous KIF7 nonsense mutation. Further, we summarize the current knowledge about the clinical spectrum associated with KIF7 mutations as well as genetic and/or phenotypic overlap with ciliopathies and other mutations in the SHH pathway.
Collapse
Affiliation(s)
- Aysegül Ibisler
- Department of Human Genetics, Ruhr University, Bochum, Germany
| | - Ute Hehr
- Center for and Department of Human Genetics, University of Regensburg, Regensburg, Germany
| | - Andre Barth
- Children's Hospital Datteln, University Witten/Herdecke, Datteln, Germany
| | - Margarete Koch
- Children's Hospital Datteln, University Witten/Herdecke, Datteln, Germany
| | - Jörg T Epplen
- Department of Human Genetics, Ruhr University, Bochum, Germany
| | - Sabine Hoffjan
- Department of Human Genetics, Ruhr University, Bochum, Germany
| |
Collapse
|