Enriched rearing improves behavioral responses of an animal model for CNV-based autistic-like traits.

Abstract:

:Potocki-Lupski syndrome (PTLS; MIM #610883), characterized by neurobehavioral abnormalities, intellectual disability and congenital anomalies, is caused by a 3.7-Mb duplication in 17p11.2. Neurobehavioral studies determined that ∼70-90% of PTLS subjects tested positive for autism or autism spectrum disorder (ASD). We previously chromosomally engineered a mouse model for PTLS (Dp(11)17/+) with a duplication of a 2-Mb genomic interval syntenic to the PTLS region and identified consistent behavioral abnormalities in this mouse model. We now report extensive phenotyping with behavioral assays established to evaluate core and associated autistic-like traits, including tests for social abnormalities, ultrasonic vocalizations, perseverative and stereotypic behaviors, anxiety, learning and memory deficits and motor defects. Alterations were identified in both core and associated ASD-like traits. Rearing this animal model in an enriched environment mitigated some, and even rescued selected, neurobehavioral abnormalities, suggesting a role for gene-environment interactions in the determination of copy number variation-mediated autism severity.

journal_name

Hum Mol Genet

journal_title

Human molecular genetics

authors

Lacaria M,Spencer C,Gu W,Paylor R,Lupski JR

doi

10.1093/hmg/dds124

subject

Has Abstract

pub_date

2012-07-15 00:00:00

pages

3083-96

issue

14

eissn

0964-6906

issn

1460-2083

pii

dds124

journal_volume

21

pub_type

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