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SCN2A channelopathies in the autism spectrum of neuropsychiatric disorders: a role for pluripotent stem cells? / Karina A. KRUTH in Molecular Autism, 11 (2020)
[article]
Titre : SCN2A channelopathies in the autism spectrum of neuropsychiatric disorders: a role for pluripotent stem cells? Type de document : Texte imprimé et/ou numérique Auteurs : Karina A. KRUTH, Auteur ; Tierney M. GRISOLANO, Auteur ; Christopher A. AHERN, Auteur ; Aislinn J. WILLIAMS, Auteur Article en page(s) : 23 p. Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Cell model Induced pluripotent stem cell NaV1.2 Organoid scn2a SCN2A syndrome Sodium channel Index. décimale : PER Périodiques Résumé : Efforts to identify the causes of autism spectrum disorders have highlighted the importance of both genetics and environment, but the lack of human models for many of these disorders limits researchers' attempts to understand the mechanisms of disease and to develop new treatments. Induced pluripotent stem cells offer the opportunity to study specific genetic and environmental risk factors, but the heterogeneity of donor genetics may obscure important findings. Diseases associated with unusually high rates of autism, such as SCN2A syndromes, provide an opportunity to study specific mutations with high effect sizes in a human genetic context and may reveal biological insights applicable to more common forms of autism. Loss-of-function mutations in the SCN2A gene, which encodes the voltage-gated sodium channel Na(V)1.2, are associated with autism rates up to 50%. Here, we review the findings from experimental models of SCN2A syndromes, including mouse and human cell studies, highlighting the potential role for patient-derived induced pluripotent stem cell technology to identify the molecular and cellular substrates of autism. En ligne : http://dx.doi.org/10.1186/s13229-020-00330-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427
in Molecular Autism > 11 (2020) . - 23 p.[article] SCN2A channelopathies in the autism spectrum of neuropsychiatric disorders: a role for pluripotent stem cells? [Texte imprimé et/ou numérique] / Karina A. KRUTH, Auteur ; Tierney M. GRISOLANO, Auteur ; Christopher A. AHERN, Auteur ; Aislinn J. WILLIAMS, Auteur . - 23 p.
Langues : Anglais (eng)
in Molecular Autism > 11 (2020) . - 23 p.
Mots-clés : Autism spectrum disorder Cell model Induced pluripotent stem cell NaV1.2 Organoid scn2a SCN2A syndrome Sodium channel Index. décimale : PER Périodiques Résumé : Efforts to identify the causes of autism spectrum disorders have highlighted the importance of both genetics and environment, but the lack of human models for many of these disorders limits researchers' attempts to understand the mechanisms of disease and to develop new treatments. Induced pluripotent stem cells offer the opportunity to study specific genetic and environmental risk factors, but the heterogeneity of donor genetics may obscure important findings. Diseases associated with unusually high rates of autism, such as SCN2A syndromes, provide an opportunity to study specific mutations with high effect sizes in a human genetic context and may reveal biological insights applicable to more common forms of autism. Loss-of-function mutations in the SCN2A gene, which encodes the voltage-gated sodium channel Na(V)1.2, are associated with autism rates up to 50%. Here, we review the findings from experimental models of SCN2A syndromes, including mouse and human cell studies, highlighting the potential role for patient-derived induced pluripotent stem cell technology to identify the molecular and cellular substrates of autism. En ligne : http://dx.doi.org/10.1186/s13229-020-00330-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427 Exploring the mechanisms underlying excitation/inhibition imbalance in human iPSC-derived models of ASD / Lorenza CULOTTA in Molecular Autism, 11 (2020)
[article]
Titre : Exploring the mechanisms underlying excitation/inhibition imbalance in human iPSC-derived models of ASD Type de document : Texte imprimé et/ou numérique Auteurs : Lorenza CULOTTA, Auteur ; Peter PENZES, Auteur Article en page(s) : 32 p. Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Excitation/inhibition balance Induced pluripotent stem cell Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is a range of neurodevelopmental disorders characterized by impaired social interaction and communication, and repetitive or restricted behaviors. ASD subjects exhibit complex genetic and clinical heterogeneity, thus hindering the discovery of pathophysiological mechanisms. Considering that several ASD-risk genes encode proteins involved in the regulation of synaptic plasticity, neuronal excitability, and neuronal connectivity, one hypothesis that has emerged is that ASD arises from a disruption of the neuronal network activity due to perturbation of the synaptic excitation and inhibition (E/I) balance. The development of induced pluripotent stem cell (iPSC) technology and recent advances in neuronal differentiation techniques provide a unique opportunity to model complex neuronal connectivity and to test the E/I hypothesis of ASD in human-based models. Here, we aim to review the latest advances in studying the different cellular and molecular mechanisms contributing to E/I balance using iPSC-based in vitro models of ASD. En ligne : http://dx.doi.org/10.1186/s13229-020-00339-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427
in Molecular Autism > 11 (2020) . - 32 p.[article] Exploring the mechanisms underlying excitation/inhibition imbalance in human iPSC-derived models of ASD [Texte imprimé et/ou numérique] / Lorenza CULOTTA, Auteur ; Peter PENZES, Auteur . - 32 p.
Langues : Anglais (eng)
in Molecular Autism > 11 (2020) . - 32 p.
Mots-clés : Autism spectrum disorder Excitation/inhibition balance Induced pluripotent stem cell Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is a range of neurodevelopmental disorders characterized by impaired social interaction and communication, and repetitive or restricted behaviors. ASD subjects exhibit complex genetic and clinical heterogeneity, thus hindering the discovery of pathophysiological mechanisms. Considering that several ASD-risk genes encode proteins involved in the regulation of synaptic plasticity, neuronal excitability, and neuronal connectivity, one hypothesis that has emerged is that ASD arises from a disruption of the neuronal network activity due to perturbation of the synaptic excitation and inhibition (E/I) balance. The development of induced pluripotent stem cell (iPSC) technology and recent advances in neuronal differentiation techniques provide a unique opportunity to model complex neuronal connectivity and to test the E/I hypothesis of ASD in human-based models. Here, we aim to review the latest advances in studying the different cellular and molecular mechanisms contributing to E/I balance using iPSC-based in vitro models of ASD. En ligne : http://dx.doi.org/10.1186/s13229-020-00339-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427