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Comparison of DEG between neonatal male and female mice by CHD8 Asn2373LysfsX2 heterozygote mutation

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Mus musculus

PROVIDER: GSE87370 | GEO | 2018/06/15

REPOSITORIES: GEO

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Comparison of DEG between neonatal male and female mice age of P25 by CHD8 Asn2373LysfsX2 heterozygote mutation.

Project description:CHD8, encoding a chromatin remodeling protein, is one of the most frequently mutated genes in autism spectrum disorders. However, how such mutations cause autistic behaviors remain unclear. In mice carrying a heterozygous frame-shift mutation in the Chd8 gene (Asn2373LysfsX2) identified in autistic human individuals, we observed autistic-like behaviors that are much stronger in males than in females, similar to human cases. These behaviors included enhanced mother-seeking ultrasonic vocalizations in pups, mother-attachment behaviors in juveniles, and isolation-induced self-grooming in adults. These behaviors were associated with opposite changes in synaptic excitation/inhibition and neuronal firing in male and female mice, but with strong changes in gene expression in female mice. Therefore, this CHD8 mutation may cause male-preponderant autistic-like behaviors in mice through differential synaptic/neuronal changes and gene expression

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Comparison of DEG between neonatal male and female mice age of P0 by CHD8 Asn2373LysfsX2 heterozygote mutation

Project description:CHD8, encoding a chromatin remodeling protein, is one of the most frequently mutated genes in autism spectrum disorders (ASDs) 1-8. However, whether and how such mutations cause autistic behaviors remain unclear. Here we show that a human CHD8 mutation causes autistic-like behaviors and enhanced excitatory drive specifically in male mice. We found that knockin mice carrying a heterozygous frame-shift mutation in the Chd8 gene (Asn2373LysfsX2) identified in human individuals with ASDs (Chd8+/N2373K mice) display male-specific autistic-like behaviors. Gene transcript analysis shows that male and female Chd8+/N2373K neurons exhibit largely opposite changes in the levels of 29 mRNAs, nine of which correspond to known ASD-risk genes. These results suggest that a human CHD8 mutation causes male-specific autistic-like behaviors in mice in association with gender-specific differential changes in gene transcripts and excitatory drive in the brain.

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Comparison of DEG between neonatal male and female mice by CHD8 Asn2373LysfsX2 heterozygote mutation

Project description:Comparison of DEG between neonatal male and female mice by CHD8 Asn2373LysfsX2 heterozygote mutation

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