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Mice with Shank3 Mutations Associated with ASD and Schizophrenia Display Both Shared and Distinct Defects

2015; Cell Press; Volume: 89; Issue: 1 Linguagem: Inglês

10.1016/j.neuron.2015.11.023

1097-4199

Yang Zhou, Tobias Kaiser, Patrícia Monteiro, Xiangyu Zhang, Marie. S. Van der Goes, Dongqing Wang, Boaz Barak, Menglong Zeng, Chenchen Li, Congyi Lu, Michael F. Wells, Aldo Amaya, Shannon Nguyen, Michael C. Lewis, Neville E. Sanjana, Yongdi Zhou, Mingjie Zhang, Feng Zhang, Zhanyan Fu, Guoping Feng,

Neuroscience and Neuropharmacology Research

Genetic studies have revealed significant overlaps of risk genes among psychiatric disorders. However, it is not clear how different mutations of the same gene contribute to different disorders. We characterized two lines of mutant mice with Shank3 mutations linked to ASD and schizophrenia. We found both shared and distinct synaptic and behavioral phenotypes. Mice with the ASD-linked InsG3680 mutation manifest striatal synaptic transmission defects before weaning age and impaired juvenile social interaction, coinciding with the early onset of ASD symptoms. On the other hand, adult mice carrying the schizophrenia-linked R1117X mutation show profound synaptic defects in prefrontal cortex and social dominance behavior. Furthermore, we found differential Shank3 mRNA stability and SHANK1/2 upregulation in these two lines. These data demonstrate that different alleles of the same gene may have distinct phenotypes at molecular, synaptic, and circuit levels in mice, which may inform exploration of these relationships in human patients.