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Genes with high penetrance for syndromic and non-syndromic autism typically function within the nucleus and regulate gene expression / Emily L. CASANOVA in Molecular Autism, 7 (2016)
[article]
Titre : Genes with high penetrance for syndromic and non-syndromic autism typically function within the nucleus and regulate gene expression Type de document : Texte imprimé et/ou numérique Auteurs : Emily L. CASANOVA, Auteur ; J. L. SHARP, Auteur ; H. CHAKRABORTY, Auteur ; N. S. SUMI, Auteur ; Manuel F. CASANOVA, Auteur Article en page(s) : 18p. Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/epidemiology/genetics/psychology Autistic Disorder/epidemiology/genetics/psychology Body Patterning/genetics Cell Nucleus/metabolism Chromatin Assembly and Disassembly/genetics Comorbidity Databases, Genetic Epigenomics Epilepsy/epidemiology/genetics/psychology Gene Expression Regulation Gene Ontology Genetic Association Studies Humans Intellectual Disability/epidemiology/genetics Nerve Tissue Proteins/genetics/physiology Neurogenesis/genetics Nuclear Proteins/genetics/physiology Penetrance Protein Interaction Maps/genetics Risk Syndrome Body patterning Chromatin assembly and disassembly Epilepsy Mental retardation Regulation of gene expression Index. décimale : PER Périodiques Résumé : BACKGROUND: Intellectual disability (ID), autism, and epilepsy share frequent yet variable comorbidities with one another. In order to better understand potential genetic divergence underlying this variable risk, we studied genes responsible for monogenic IDs, grouped according to their autism and epilepsy comorbidities. METHODS: Utilizing 465 different forms of ID with known molecular origins, we accessed available genetic databases in conjunction with gene ontology (GO) to determine whether the genetics underlying ID diverge according to its comorbidities with autism and epilepsy and if genes highly penetrant for autism or epilepsy share distinctive features that set them apart from genes that confer comparatively variable or no apparent risk. RESULTS: The genetics of ID with autism are relatively enriched in terms associated with nervous system-specific processes and structural morphogenesis. In contrast, we find that ID with highly comorbid epilepsy (HCE) is modestly associated with lipid metabolic processes while ID without autism or epilepsy comorbidity (ID only) is enriched at the Golgi membrane. Highly comorbid autism (HCA) genes, on the other hand, are strongly enriched within the nucleus, are typically involved in regulation of gene expression, and, along with IDs with more variable autism, share strong ties with a core protein-protein interaction (PPI) network integral to basic patterning of the CNS. CONCLUSIONS: According to GO terminology, autism-related gene products are integral to neural development. While it is difficult to draw firm conclusions regarding IDs unassociated with autism, it is clear that the majority of HCA genes are tightly linked with general dysregulation of gene expression, suggesting that disturbances to the chronology of neural maturation and patterning may be key in conferring susceptibility to autism spectrum conditions. En ligne : http://dx.doi.org/10.1186/s13229-016-0082-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328
in Molecular Autism > 7 (2016) . - 18p.[article] Genes with high penetrance for syndromic and non-syndromic autism typically function within the nucleus and regulate gene expression [Texte imprimé et/ou numérique] / Emily L. CASANOVA, Auteur ; J. L. SHARP, Auteur ; H. CHAKRABORTY, Auteur ; N. S. SUMI, Auteur ; Manuel F. CASANOVA, Auteur . - 18p.
Langues : Anglais (eng)
in Molecular Autism > 7 (2016) . - 18p.
Mots-clés : Autism Spectrum Disorder/epidemiology/genetics/psychology Autistic Disorder/epidemiology/genetics/psychology Body Patterning/genetics Cell Nucleus/metabolism Chromatin Assembly and Disassembly/genetics Comorbidity Databases, Genetic Epigenomics Epilepsy/epidemiology/genetics/psychology Gene Expression Regulation Gene Ontology Genetic Association Studies Humans Intellectual Disability/epidemiology/genetics Nerve Tissue Proteins/genetics/physiology Neurogenesis/genetics Nuclear Proteins/genetics/physiology Penetrance Protein Interaction Maps/genetics Risk Syndrome Body patterning Chromatin assembly and disassembly Epilepsy Mental retardation Regulation of gene expression Index. décimale : PER Périodiques Résumé : BACKGROUND: Intellectual disability (ID), autism, and epilepsy share frequent yet variable comorbidities with one another. In order to better understand potential genetic divergence underlying this variable risk, we studied genes responsible for monogenic IDs, grouped according to their autism and epilepsy comorbidities. METHODS: Utilizing 465 different forms of ID with known molecular origins, we accessed available genetic databases in conjunction with gene ontology (GO) to determine whether the genetics underlying ID diverge according to its comorbidities with autism and epilepsy and if genes highly penetrant for autism or epilepsy share distinctive features that set them apart from genes that confer comparatively variable or no apparent risk. RESULTS: The genetics of ID with autism are relatively enriched in terms associated with nervous system-specific processes and structural morphogenesis. In contrast, we find that ID with highly comorbid epilepsy (HCE) is modestly associated with lipid metabolic processes while ID without autism or epilepsy comorbidity (ID only) is enriched at the Golgi membrane. Highly comorbid autism (HCA) genes, on the other hand, are strongly enriched within the nucleus, are typically involved in regulation of gene expression, and, along with IDs with more variable autism, share strong ties with a core protein-protein interaction (PPI) network integral to basic patterning of the CNS. CONCLUSIONS: According to GO terminology, autism-related gene products are integral to neural development. While it is difficult to draw firm conclusions regarding IDs unassociated with autism, it is clear that the majority of HCA genes are tightly linked with general dysregulation of gene expression, suggesting that disturbances to the chronology of neural maturation and patterning may be key in conferring susceptibility to autism spectrum conditions. En ligne : http://dx.doi.org/10.1186/s13229-016-0082-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328 WDFY3 mutation alters laminar position and morphology of cortical neurons / Zachary A. SCHAAF in Molecular Autism, 13 (2022)
[article]
Titre : WDFY3 mutation alters laminar position and morphology of cortical neurons Type de document : Texte imprimé et/ou numérique Auteurs : Zachary A. SCHAAF, Auteur ; Lyvin TAT, Auteur ; Noemi CANNIZZARO, Auteur ; Ralph GREEN, Auteur ; Thomas RULICKE, Auteur ; Simon HIPPENMEYER, Auteur ; Konstantinos S. ZARBALIS, Auteur Article en page(s) : 27 p. Langues : Anglais (eng) Mots-clés : Adaptor Proteins, Signal Transducing/genetics Animals Autistic Disorder/genetics Autophagy-Related Proteins/genetics Cerebral Cortex/cytology Humans Mice Mutation Neurogenesis/genetics Neurons/cytology Cerebral cortex Dendrites Dendritic spines Excitatory neurons Neuronal migration Wdfy3 Index. décimale : PER Périodiques Résumé : BACKGROUND: Proper cerebral cortical development depends on the tightly orchestrated migration of newly born neurons from the inner ventricular and subventricular zones to the outer cortical plate. Any disturbance in this process during prenatal stages may lead to neuronal migration disorders (NMDs), which can vary in extent from focal to global. Furthermore, NMDs show a substantial comorbidity with other neurodevelopmental disorders, notably autism spectrum disorders (ASDs). Our previous work demonstrated focal neuronal migration defects in mice carrying loss-of-function alleles of the recognized autism risk gene WDFY3. However, the cellular origins of these defects in Wdfy3 mutant mice remain elusive and uncovering it will provide critical insight into WDFY3-dependent disease pathology. METHODS: Here, in an effort to untangle the origins of NMDs in Wdfy3(lacZ) mice, we employed mosaic analysis with double markers (MADM). MADM technology enabled us to genetically distinctly track and phenotypically analyze mutant and wild-type cells concomitantly in vivo using immunofluorescent techniques. RESULTS: We revealed a cell autonomous requirement of WDFY3 for accurate laminar positioning of cortical projection neurons and elimination of mispositioned cells during early postnatal life. In addition, we identified significant deviations in dendritic arborization, as well as synaptic density and morphology between wild type, heterozygous, and homozygous Wdfy3 mutant neurons in Wdfy3-MADM reporter mice at postnatal stages. LIMITATIONS: While Wdfy3 mutant mice have provided valuable insight into prenatal aspects of ASD pathology that remain inaccessible to investigation in humans, like most animal models, they do not a perfectly replicate all aspects of human ASD biology. The lack of human data makes it indeterminate whether morphological deviations described here apply to ASD patients or some of the other neurodevelopmental conditions associated with WDFY3 mutation. CONCLUSIONS: Our genetic approach revealed several cell autonomous requirements of WDFY3 in neuronal development that could underlie the pathogenic mechanisms of WDFY3-related neurodevelopmental conditions. The results are also consistent with findings in other ASD animal models and patients and suggest an important role for WDFY3 in regulating neuronal function and interconnectivity in postnatal life. En ligne : http://dx.doi.org/10.1186/s13229-022-00508-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=491
in Molecular Autism > 13 (2022) . - 27 p.[article] WDFY3 mutation alters laminar position and morphology of cortical neurons [Texte imprimé et/ou numérique] / Zachary A. SCHAAF, Auteur ; Lyvin TAT, Auteur ; Noemi CANNIZZARO, Auteur ; Ralph GREEN, Auteur ; Thomas RULICKE, Auteur ; Simon HIPPENMEYER, Auteur ; Konstantinos S. ZARBALIS, Auteur . - 27 p.
Langues : Anglais (eng)
in Molecular Autism > 13 (2022) . - 27 p.
Mots-clés : Adaptor Proteins, Signal Transducing/genetics Animals Autistic Disorder/genetics Autophagy-Related Proteins/genetics Cerebral Cortex/cytology Humans Mice Mutation Neurogenesis/genetics Neurons/cytology Cerebral cortex Dendrites Dendritic spines Excitatory neurons Neuronal migration Wdfy3 Index. décimale : PER Périodiques Résumé : BACKGROUND: Proper cerebral cortical development depends on the tightly orchestrated migration of newly born neurons from the inner ventricular and subventricular zones to the outer cortical plate. Any disturbance in this process during prenatal stages may lead to neuronal migration disorders (NMDs), which can vary in extent from focal to global. Furthermore, NMDs show a substantial comorbidity with other neurodevelopmental disorders, notably autism spectrum disorders (ASDs). Our previous work demonstrated focal neuronal migration defects in mice carrying loss-of-function alleles of the recognized autism risk gene WDFY3. However, the cellular origins of these defects in Wdfy3 mutant mice remain elusive and uncovering it will provide critical insight into WDFY3-dependent disease pathology. METHODS: Here, in an effort to untangle the origins of NMDs in Wdfy3(lacZ) mice, we employed mosaic analysis with double markers (MADM). MADM technology enabled us to genetically distinctly track and phenotypically analyze mutant and wild-type cells concomitantly in vivo using immunofluorescent techniques. RESULTS: We revealed a cell autonomous requirement of WDFY3 for accurate laminar positioning of cortical projection neurons and elimination of mispositioned cells during early postnatal life. In addition, we identified significant deviations in dendritic arborization, as well as synaptic density and morphology between wild type, heterozygous, and homozygous Wdfy3 mutant neurons in Wdfy3-MADM reporter mice at postnatal stages. LIMITATIONS: While Wdfy3 mutant mice have provided valuable insight into prenatal aspects of ASD pathology that remain inaccessible to investigation in humans, like most animal models, they do not a perfectly replicate all aspects of human ASD biology. The lack of human data makes it indeterminate whether morphological deviations described here apply to ASD patients or some of the other neurodevelopmental conditions associated with WDFY3 mutation. CONCLUSIONS: Our genetic approach revealed several cell autonomous requirements of WDFY3 in neuronal development that could underlie the pathogenic mechanisms of WDFY3-related neurodevelopmental conditions. The results are also consistent with findings in other ASD animal models and patients and suggest an important role for WDFY3 in regulating neuronal function and interconnectivity in postnatal life. En ligne : http://dx.doi.org/10.1186/s13229-022-00508-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=491