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Title: Germline Chd8 haploinsufficiency alters brain development in mouse

Journal Article · · Nature Neuroscience
DOI:https://doi.org/10.1038/nn.4592· OSTI ID:1436635
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  1. Univ. of California, Davis, CA (United States). Dept. of Psychiatry and Behavioral Sciences. Dept. of Neurobiology, Physiology and Behavior
  2. The Hospital for Sick Children, Toronto, ON (Canada). Mouse Imaging Centre
  3. Univ. of California, Davis, CA (United States). Dept. of Psychiatry and Behavioral Sciences. MIND Inst. School of Medicine
  4. Univ. of California, Davis, Sacramento, CA (United States). Dept. of Pathology and Laboratory Medicine. Shriners Hospitals for Children. Inst. for Pediatric Regenerative Medicine
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Functional Genomics Dept.
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Functional Genomics Dept.; USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States); Univ. of California, Merced, CA (United States). School of Natural Sciences
  7. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Functional Genomics Dept.; USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States)
  8. The Hospital for Sick Children, Toronto, ON (Canada). Mouse Imaging Centre; Univ. of Toronto, ON (Canada). Dept. of Medical Biophysics

The chromatin remodeling gene CHD8 represents a central node in neurodevelopmental gene networks implicated in autism. In this paper, we examined the impact of germline heterozygous frameshift Chd8 mutation on neurodevelopment in mice. Chd8+/del5 mice displayed normal social interactions with no repetitive behaviors but exhibited cognitive impairment correlated with increased regional brain volume, validating that phenotypes of Chd8+/del5 mice overlap pathology reported in humans with CHD8 mutations. We applied network analysis to characterize neurodevelopmental gene expression, revealing widespread transcriptional changes in Chd8+/del5 mice across pathways disrupted in neurodevelopmental disorders, including neurogenesis, synaptic processes and neuroimmune signaling. We identified a co-expression module with peak expression in early brain development featuring dysregulation of RNA processing, chromatin remodeling and cell-cycle genes enriched for promoter binding by Chd8, and we validated increased neuronal proliferation and developmental splicing perturbation in Chd8+/del5 mice. Finally, this integrative analysis offers an initial picture of the consequences of Chd8 haploinsufficiency for brain development.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE; Univ. of California, Davis (United States); National Inst. of Health (NIH) (United States); National Council for Scientific and Technological Development (CNPq) (Brazil); Canadian Inst. for Health Research (CIHR)
Grant/Contract Number:
AC02-05CH11231; U54 HD079125; NIGMS R35 GM119831; T32-GM008799; T32-GM007377; R24HL123879; U01DE024427; R01HG003988; U54HG006997; UM1HL098166
OSTI ID:
1436635
Journal Information:
Nature Neuroscience, Vol. 20, Issue 8; ISSN 1097-6256
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 136 works
Citation information provided by
Web of Science

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Dysfunction of the corticostriatal pathway in autism spectrum disorders journal November 2019
Neurodevelopmental phenotype associated with CHD8-SUPT16H duplication journal December 2019
Setd5 haploinsufficiency alters neuronal network connectivity and leads to autistic-like behaviors in mice journal January 2019
Sexually dimorphic behavior, neuronal activity, and gene expression in Chd8-mutant mice journal August 2018
Sex bias in autism: new insights from Chd8 mutant mice? journal August 2018
A perturbed gene network containing PI3K–AKT, RAS–ERK and WNT–β-catenin pathways in leukocytes is linked to ASD genetics and symptom severity journal September 2019
Altered Neocortical Gene Expression, Brain Overgrowth and Functional Over-Connectivity in Chd8 Haploinsufficient Mice journal April 2018
The clinical presentation caused by truncating CHD8 variants journal April 2019
Epigenetic cues modulating the generation of cell‐type diversity in the cerebral cortex journal November 2018
Autism-linked CHD gene expression patterns during development predict multi-organ disease phenotypes journal October 2018
Autism-associated CHD8 deficiency impairs axon development and migration of cortical neurons journal December 2018
Arid1b Haploinsufficiency Causes Abnormal Brain Gene Expression and Autism-Related Behaviors in Mice journal August 2017
Developmental social communication deficits in the Shank3 rat model of phelan-mcdermid syndrome and autism spectrum disorder: Social communication in the Shank3 rat journal January 2018
Molecular causes of sex‐specific deficits in rodent models of neurodevelopmental disorders journal December 2019
The ASD Living Biology: from cell proliferation to clinical phenotype journal June 2018
Pten haploinsufficiency disrupts scaling across brain areas during development in mice journal December 2019
Molecular dissection of CHARGE syndrome highlights the vulnerability of neural crest cells to problems with alternative splicing and other transcription-related processes journal September 2018
Neuronal overexpression of Ube3a isoform 2 causes behavioral impairments and neuroanatomical pathology relevant to 15q11.2-q13.3 duplication syndrome journal July 2017
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Genetic mutations in Ca 2+ signaling alter dendrite morphology and social approach in juvenile mice journal November 2018
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