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Witteveen JS, Willemsen MH, Dombroski TCD, van Bakel NHM, Nillesen WM, van Hulten JA, Jansen EJR, Verkaik D, Veenstra-Knol HE, van Ravenswaaij-Arts CMA, Wassink-Ruiter JSK, Vincent M, David A, Le Caignec C, Schieving J, Gilissen C, Foulds N, Rump P, Strom T, Cremer K, Zink AM, Engels H, de Munnik SA, Visser JE, Brunner HG, Martens GJM, Pfundt R, Kleefstra T, Kolk SM. Haploinsufficiency of MeCP2-interacting transcriptional co-repressor SIN3A causes mild intellectual disability by affecting the development of cortical integrity. Nat Genet 2016; 48:877-87. [PMID: 27399968 DOI: 10.1038/ng.3619] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 06/15/2016] [Indexed: 12/13/2022]
Abstract
Numerous genes are associated with neurodevelopmental disorders such as intellectual disability and autism spectrum disorder (ASD), but their dysfunction is often poorly characterized. Here we identified dominant mutations in the gene encoding the transcriptional repressor and MeCP2 interactor switch-insensitive 3 family member A (SIN3A; chromosome 15q24.2) in individuals who, in addition to mild intellectual disability and ASD, share striking features, including facial dysmorphisms, microcephaly and short stature. This phenotype is highly related to that of individuals with atypical 15q24 microdeletions, linking SIN3A to this microdeletion syndrome. Brain magnetic resonance imaging showed subtle abnormalities, including corpus callosum hypoplasia and ventriculomegaly. Intriguingly, in vivo functional knockdown of Sin3a led to reduced cortical neurogenesis, altered neuronal identity and aberrant corticocortical projections in the developing mouse brain. Together, our data establish that haploinsufficiency of SIN3A is associated with mild syndromic intellectual disability and that SIN3A can be considered to be a key transcriptional regulator of cortical brain development.
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Affiliation(s)
- Josefine S Witteveen
- Department of Molecular Animal Physiology, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, the Netherlands
| | - Marjolein H Willemsen
- Department of Human Genetics, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behavior, Nijmegen, the Netherlands
| | - Thaís C D Dombroski
- Department of Molecular Animal Physiology, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, the Netherlands
| | - Nick H M van Bakel
- Department of Molecular Animal Physiology, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, the Netherlands
| | - Willy M Nillesen
- Department of Human Genetics, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behavior, Nijmegen, the Netherlands
| | - Josephus A van Hulten
- Department of Molecular Animal Physiology, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, the Netherlands
| | - Eric J R Jansen
- Department of Molecular Animal Physiology, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, the Netherlands
| | - Dave Verkaik
- Department of Human Genetics, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behavior, Nijmegen, the Netherlands
| | - Hermine E Veenstra-Knol
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | | | | | - Marie Vincent
- Centre Hospitalier Universitaire de Nantes, Service de Génétique Médicale, Nantes, France
| | - Albert David
- Centre Hospitalier Universitaire de Nantes, Service de Génétique Médicale, Nantes, France
| | - Cedric Le Caignec
- Centre Hospitalier Universitaire de Nantes, Service de Génétique Médicale, Nantes, France.,Laboratoire de Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Faculté de Médecine, INSERM UMRS 957, Nantes, France
| | - Jolanda Schieving
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Christian Gilissen
- Department of Human Genetics, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behavior, Nijmegen, the Netherlands
| | - Nicola Foulds
- Wessex Clinical Genetics Services, University Hospital Southampton National Health Service Foundation Trust, Princess Anne Hospital, Southampton, UK.,Department of Human Genetics and Genomic Medicine, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Patrick Rump
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Tim Strom
- Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany.,Institute of Human Genetics, Technische Universität München, Munich, Germany
| | - Kirsten Cremer
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | | | - Hartmut Engels
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - Sonja A de Munnik
- Department of Human Genetics, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behavior, Nijmegen, the Netherlands
| | - Jasper E Visser
- Department of Molecular Animal Physiology, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, the Netherlands.,Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands.,Department of Neurology, Amphia Hospital Breda, Berda, the Netherlands
| | - Han G Brunner
- Department of Human Genetics, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behavior, Nijmegen, the Netherlands
| | - Gerard J M Martens
- Department of Molecular Animal Physiology, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, the Netherlands
| | - Rolph Pfundt
- Department of Human Genetics, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behavior, Nijmegen, the Netherlands
| | - Tjitske Kleefstra
- Department of Human Genetics, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behavior, Nijmegen, the Netherlands
| | - Sharon M Kolk
- Department of Molecular Animal Physiology, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, the Netherlands
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Vietor I, Vadivelu SK, Wick N, Hoffman R, Cotten M, Seiser C, Fialka I, Wunderlich W, Haase A, Korinkova G, Brosch G, Huber LA. TIS7 interacts with the mammalian SIN3 histone deacetylase complex in epithelial cells. EMBO J 2002; 21:4621-31. [PMID: 12198164 PMCID: PMC125408 DOI: 10.1093/emboj/cdf461] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The mammalian SIN3 complex consists of histone deacetylases (HDAC1, HDAC2), several known proteins (SAP30, N-CoR) and as yet unidentified proteins. Here we show that the mouse tetradecanoyl phorbol acetate induced sequence 7 (TIS7) protein is a novel transcriptional co-repressor that can associate with the SIN3 complex. We have identified tis7 as a gene that is up-regulated upon loss of polarity in a mouse mammary gland epithelial cell line expressing an estrogen-inducible c-JunER fusion protein. In unpolarized cells, TIS7 protein levels increase and TIS7 translocates into the nucleus. Overexpression of tis7 causes loss of polarity and represses a set of genes, as revealed by cDNA microarray analysis. We have shown that TIS7 protein interacts with several proteins of the SIN3 complex (mSin3B, HDAC1, N-CoR and SAP30) by yeast two-hybrid screening and co-immunoprecipitations. TIS7 co-immunoprecipitated HDAC complex is enzymatically active and represses a GAL4-dependent reporter transcription. The transcriptional repression of endogenous genes by tis7 overexpression is HDAC dependent. Thus, we propose TIS7 as a transcriptional co-repressor affecting the expression of specific genes in a HDAC activity-dependent manner during cell fate decisions, e.g. scattering.
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Affiliation(s)
- Ilja Vietor
- IMP, Research Institute of Molecular Pathology, Dr Bohr-Gasse 7, A-1030 Vienna,
Institute of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Institute of Microbiology, University of Innsbruck, Medical School, Innsbruck, Austria and Department of Pediatrics, Faculty of Medicine, Palackeho University in Olomouc, Czech Republic Present address: Department of Histology and Molecular Cell Biology, Institute of Anatomy, Histology and Embryology, University of Innsbruck, Medical School, Muellerstrasse 59, A-6020 Innsbruck, Austria Corresponding author e-mail: I.Vietor, S.K.Vadivelu and N.Wick contributed equally to this work
| | | | | | | | | | - Christian Seiser
- IMP, Research Institute of Molecular Pathology, Dr Bohr-Gasse 7, A-1030 Vienna,
Institute of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Institute of Microbiology, University of Innsbruck, Medical School, Innsbruck, Austria and Department of Pediatrics, Faculty of Medicine, Palackeho University in Olomouc, Czech Republic Present address: Department of Histology and Molecular Cell Biology, Institute of Anatomy, Histology and Embryology, University of Innsbruck, Medical School, Muellerstrasse 59, A-6020 Innsbruck, Austria Corresponding author e-mail: I.Vietor, S.K.Vadivelu and N.Wick contributed equally to this work
| | | | | | | | - Gabriela Korinkova
- IMP, Research Institute of Molecular Pathology, Dr Bohr-Gasse 7, A-1030 Vienna,
Institute of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Institute of Microbiology, University of Innsbruck, Medical School, Innsbruck, Austria and Department of Pediatrics, Faculty of Medicine, Palackeho University in Olomouc, Czech Republic Present address: Department of Histology and Molecular Cell Biology, Institute of Anatomy, Histology and Embryology, University of Innsbruck, Medical School, Muellerstrasse 59, A-6020 Innsbruck, Austria Corresponding author e-mail: I.Vietor, S.K.Vadivelu and N.Wick contributed equally to this work
| | - Gerald Brosch
- IMP, Research Institute of Molecular Pathology, Dr Bohr-Gasse 7, A-1030 Vienna,
Institute of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Institute of Microbiology, University of Innsbruck, Medical School, Innsbruck, Austria and Department of Pediatrics, Faculty of Medicine, Palackeho University in Olomouc, Czech Republic Present address: Department of Histology and Molecular Cell Biology, Institute of Anatomy, Histology and Embryology, University of Innsbruck, Medical School, Muellerstrasse 59, A-6020 Innsbruck, Austria Corresponding author e-mail: I.Vietor, S.K.Vadivelu and N.Wick contributed equally to this work
| | - Lukas A. Huber
- IMP, Research Institute of Molecular Pathology, Dr Bohr-Gasse 7, A-1030 Vienna,
Institute of Molecular Biology, Vienna Biocenter, University of Vienna, Vienna, Institute of Microbiology, University of Innsbruck, Medical School, Innsbruck, Austria and Department of Pediatrics, Faculty of Medicine, Palackeho University in Olomouc, Czech Republic Present address: Department of Histology and Molecular Cell Biology, Institute of Anatomy, Histology and Embryology, University of Innsbruck, Medical School, Muellerstrasse 59, A-6020 Innsbruck, Austria Corresponding author e-mail: I.Vietor, S.K.Vadivelu and N.Wick contributed equally to this work
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Mori N, Mizuno T, Murai K, Nakano I, Yamashita H. Effect of age on the gene expression of neural-restrictive silencing factor NRSF/REST. Neurobiol Aging 2002; 23:255-62. [PMID: 11804711 DOI: 10.1016/s0197-4580(01)00286-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Aging affects a wide range of gene expression changes in the nervous system. Such effects could be attributed to random changes in the environment with age around each gene, but also could be caused by selective changes in a limited set of key regulatory transcription factors and/or chromatin remodeling components. To approach the question of whether neural-restrictive silencer factor NRSF, a key determinant of the neuron-specific gene expression, is involved in these changes, we examined the levels of NRSF in the rat brain and dosal root ganglia during aging by semi-quantitative reverse transcriptase-mediated polymerase chain reaction (PCR) (RT-PCR). Complementary expression profiles of transcripts of NRSF and SCG10 in the mature brain were shown by in situ hybridization. Neither the mRNA levels of NRSF nor a splicing variant NRnV were changed, at least in rats up to 26 months old. The gene expression level of SCG10, one of the NRSF targets, was also unaffected by age. The stable expression of SCG10 transcripts in aging was confirmed by in situ hybridization. The NRS-binding ability of NRSF was also unchanged significantly in the nuclear extracts of aged rat brain. These results suggest that the genetic machinery associated with the NRS-NRSF system is well maintained during aging.
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Affiliation(s)
- Nozomu Mori
- Department of Molecular Genetics, National Institute for Longevity Sciences (NILS), Gengo 36-3, Morioka, 474-8522, Oobu, Aichi, Japan.
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