Abnormal Behavior in a Chromosome- Engineered Mouse Model for Human 15q11-13 Duplication Seen in Autism

Jin Nakatani, Kota Tamada, Fumiyuki Hatanaka, Satoko Ise, Hisashi Ohta, Kiyoshi Inoue, Shozo Tomonaga, Yasuhito Watanabe, Yeun Jun Chung, Ruby Banerjee, Kazuya Iwamoto, Tadafumi Kato, Makoto Okazawa, Kenta Yamauchi, Koichi Tanda, Keizo Takao, Tsuyoshi Miyakawa, Allan Bradley, Toru Takumi

Research output: Contribution to journalArticlepeer-review

350 Citations (Scopus)


Substantial evidence suggests that chromosomal abnormalities contribute to the risk of autism. The duplication of human chromosome 15q11-13 is known to be the most frequent cytogenetic abnormality in autism. We have modeled this genetic change in mice by using chromosome engineering to generate a 6.3 Mb duplication of the conserved linkage group on mouse chromosome 7. Mice with a paternal duplication display poor social interaction, behavioral inflexibility, abnormal ultrasonic vocalizations, and correlates of anxiety. An increased MBII52 snoRNA within the duplicated region, affecting the serotonin 2c receptor (5-HT2cR), correlates with altered intracellular Ca2+ responses elicited by a 5-HT2cR agonist in neurons of mice with a paternal duplication. This chromosome-engineered mouse model for autism seems to replicate various aspects of human autistic phenotypes and validates the relevance of the human chromosome abnormality. This model will facilitate forward genetics of developmental brain disorders and serve as an invaluable tool for therapeutic development.

Original languageEnglish
Pages (from-to)1235-1246
Number of pages12
Issue number7
Publication statusPublished - 26-06-2009

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)


Dive into the research topics of 'Abnormal Behavior in a Chromosome- Engineered Mouse Model for Human 15q11-13 Duplication Seen in Autism'. Together they form a unique fingerprint.

Cite this