Limited impact of Cntn4 mutation on autism-related traits in developing and adult C57BL/6J mice / R. T. MOLENHUIS in Journal of Neurodevelopmental Disorders, 8-1 (December 2016)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.6 Titre : Limited impact of Cntn4 mutation on autism-related traits in developing and adult C57BL/6J mice Type de document : Texte imprimé et/ou numérique Auteurs : R. T. MOLENHUIS, Auteur ; Hilgo BRUINING, Auteur ; E. REMMELINK, Auteur ; L. DE VISSER, Auteur ; M. LOOS, Auteur ; J. P. H. BURBACH, Auteur ; M. J. KAS, Auteur Article en page(s) : p.6 Langues : Anglais (eng) Mots-clés : 3p deletion syndrome  Autism spectrum disorder  Behavior  Cntn4  Developmental trajectories  Hyperreactivity  Mouse model  Negative findings  Reversal learning  Schizophrenia Index. décimale : PER Périodiques Résumé : BACKGROUND: Mouse models offer an essential tool to unravel the impact of genetic mutations on autism-related phenotypes. The behavioral impact of some important candidate gene models for autism spectrum disorder (ASD) has not yet been studied, and existing characterizations mostly describe behavioral phenotypes at adult ages, disregarding the developmental nature of the disorder. In this context, the behavioral influence of CNTN4, one of the strongest suggested ASD candidate genes, is unknown. Here, we used our recently established developmental test battery to characterize the consequences of disruption of contactin 4 (Cntn4) on neurological, sensory, cognitive, and behavioral phenotypes across different developmental stages. METHODS: C57BL/6J mice with heterozygous and homozygous disruption of Cntn4 were studied through an extensive, partially longitudinal, test battery at various developmental stages, including various paradigms testing social and restricted repetitive behaviors. RESULTS: Developmental neurological and cognitive screenings revealed no significant differences between genotypes, and ASD-related behavioral domains were also unchanged in Cntn4-deficient versus wild-type mice. The impact of Cntn4-deficiency was found to be limited to increased startle responsiveness following auditory stimuli of different high amplitudes in heterozygous and homozygous Cntn4-deficient mice and enhanced acquisition in a spatial learning task in homozygous mice. CONCLUSIONS: Disruption of Cntn4 in the C57BL/6J background does not affect specific autism-related phenotypes in developing or adult mice but causes subtle non-disorder specific changes in sensory behavioral responses and cognitive performance. En ligne : http://dx.doi.org/10.1186/s11689-016-9140-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=348 [article] Limited impact of Cntn4 mutation on autism-related traits in developing and adult C57BL/6J mice [Texte imprimé et/ou numérique] / R. T. MOLENHUIS, Auteur ; Hilgo BRUINING, Auteur ; E. REMMELINK, Auteur ; L. DE VISSER, Auteur ; M. LOOS, Auteur ; J. P. H. BURBACH, Auteur ; M. J. KAS, Auteur . - p.6. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.6 Mots-clés : 3p deletion syndrome  Autism spectrum disorder  Behavior  Cntn4  Developmental trajectories  Hyperreactivity  Mouse model  Negative findings  Reversal learning  Schizophrenia Index. décimale : PER Périodiques Résumé : BACKGROUND: Mouse models offer an essential tool to unravel the impact of genetic mutations on autism-related phenotypes. The behavioral impact of some important candidate gene models for autism spectrum disorder (ASD) has not yet been studied, and existing characterizations mostly describe behavioral phenotypes at adult ages, disregarding the developmental nature of the disorder. In this context, the behavioral influence of CNTN4, one of the strongest suggested ASD candidate genes, is unknown. Here, we used our recently established developmental test battery to characterize the consequences of disruption of contactin 4 (Cntn4) on neurological, sensory, cognitive, and behavioral phenotypes across different developmental stages. METHODS: C57BL/6J mice with heterozygous and homozygous disruption of Cntn4 were studied through an extensive, partially longitudinal, test battery at various developmental stages, including various paradigms testing social and restricted repetitive behaviors. RESULTS: Developmental neurological and cognitive screenings revealed no significant differences between genotypes, and ASD-related behavioral domains were also unchanged in Cntn4-deficient versus wild-type mice. The impact of Cntn4-deficiency was found to be limited to increased startle responsiveness following auditory stimuli of different high amplitudes in heterozygous and homozygous Cntn4-deficient mice and enhanced acquisition in a spatial learning task in homozygous mice. CONCLUSIONS: Disruption of Cntn4 in the C57BL/6J background does not affect specific autism-related phenotypes in developing or adult mice but causes subtle non-disorder specific changes in sensory behavioral responses and cognitive performance. En ligne : http://dx.doi.org/10.1186/s11689-016-9140-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=348

---

1 (1 - 1 / 1)