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Portmann T, Yang M, Mao R, Panagiotakos G, Ellegood J, Dolen G, Bader PL, Grueter BA, Goold C, Fisher E, Clifford K, Rengarajan P, Kalikhman D, Loureiro D, Saw NL, Zhengqui Z, Miller MA, Lerch JP, Henkelman M, Shamloo M, Malenka RC, Crawley JN, Dolmetsch RE. Behavioral abnormalities and circuit defects in the basal ganglia of a mouse model of 16p11.2 deletion syndrome. Cell Rep 2014; 7:1077-1092. [PMID: 24794428 DOI: 10.1016/j.celrep.2014.03.036] [Citation(s) in RCA: 163] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 02/06/2014] [Accepted: 03/07/2014] [Indexed: 01/22/2023] Open
Abstract
A deletion on human chromosome 16p11.2 is associated with autism spectrum disorders. We deleted the syntenic region on mouse chromosome 7F3. MRI and high-throughput single-cell transcriptomics revealed anatomical and cellular abnormalities, particularly in cortex and striatum of juvenile mutant mice (16p11(+/-)). We found elevated numbers of striatal medium spiny neurons (MSNs) expressing the dopamine D2 receptor (Drd2(+)) and fewer dopamine-sensitive (Drd1(+)) neurons in deep layers of cortex. Electrophysiological recordings of Drd2(+) MSN revealed synaptic defects, suggesting abnormal basal ganglia circuitry function in 16p11(+/-) mice. This is further supported by behavioral experiments showing hyperactivity, circling, and deficits in movement control. Strikingly, 16p11(+/-) mice showed a complete lack of habituation reminiscent of what is observed in some autistic individuals. Our findings unveil a fundamental role of genes affected by the 16p11.2 deletion in establishing the basal ganglia circuitry and provide insights in the pathophysiology of autism.
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Affiliation(s)
- Thomas Portmann
- Department of Neurobiology, Stanford University, Stanford, CA 94305-5345, USA.,School of Medicine, Stanford University, Stanford, CA 94305-5345, USA
| | - Mu Yang
- Laboratory of Behavioral Neuroscience, National Institute of Mental Health, Bethesda, MD 20892-9663, USA
| | - Rong Mao
- Department of Neurobiology, Stanford University, Stanford, CA 94305-5345, USA.,School of Medicine, Stanford University, Stanford, CA 94305-5345, USA
| | - Georgia Panagiotakos
- Department of Neurobiology, Stanford University, Stanford, CA 94305-5345, USA.,School of Medicine, Stanford University, Stanford, CA 94305-5345, USA.,Neurosciences Program, Stanford University, Stanford, CA 94305-5345, USA
| | - Jacob Ellegood
- Mouse Imaging Centre (MICe), Hospital for Sick Children, Toronto, ON M5T 3H7, Canada
| | - Gul Dolen
- Department of Neuroscience, Brain Science Institute, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Patrick L Bader
- School of Medicine, Stanford University, Stanford, CA 94305-5345, USA.,Department of Molecular and Cellular Physiology, Stanford University, Stanford, CA 94305-5345, USA
| | - Brad A Grueter
- School of Medicine, Stanford University, Stanford, CA 94305-5345, USA.,Nancy Pritzker Laboratory, Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305-5345, USA
| | - Carleton Goold
- Department of Neurobiology, Stanford University, Stanford, CA 94305-5345, USA.,School of Medicine, Stanford University, Stanford, CA 94305-5345, USA
| | - Elaine Fisher
- Department of Neurobiology, Stanford University, Stanford, CA 94305-5345, USA.,School of Medicine, Stanford University, Stanford, CA 94305-5345, USA
| | - Katherine Clifford
- Department of Neurobiology, Stanford University, Stanford, CA 94305-5345, USA.,School of Medicine, Stanford University, Stanford, CA 94305-5345, USA
| | - Pavitra Rengarajan
- Department of Neurobiology, Stanford University, Stanford, CA 94305-5345, USA.,School of Medicine, Stanford University, Stanford, CA 94305-5345, USA
| | - David Kalikhman
- Laboratory of Behavioral Neuroscience, National Institute of Mental Health, Bethesda, MD 20892-9663, USA
| | - Darren Loureiro
- Laboratory of Behavioral Neuroscience, National Institute of Mental Health, Bethesda, MD 20892-9663, USA
| | - Nay L Saw
- Stanford Behavioral and Functional Neuroscience Laboratory, Stanford, CA 94305-5345, USA
| | - Zhou Zhengqui
- Stanford Behavioral and Functional Neuroscience Laboratory, Stanford, CA 94305-5345, USA
| | - Michael A Miller
- Stanford Behavioral and Functional Neuroscience Laboratory, Stanford, CA 94305-5345, USA
| | - Jason P Lerch
- Mouse Imaging Centre (MICe), Hospital for Sick Children, Toronto, ON M5T 3H7, Canada.,Deparment of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Mark Henkelman
- Mouse Imaging Centre (MICe), Hospital for Sick Children, Toronto, ON M5T 3H7, Canada.,Deparment of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Mehrdad Shamloo
- School of Medicine, Stanford University, Stanford, CA 94305-5345, USA.,Stanford Behavioral and Functional Neuroscience Laboratory, Stanford, CA 94305-5345, USA.,Stanford Institute for Neuro-Innovation and Translational Neurosciences, Stanford, CA 94305-5345, USA
| | - Robert C Malenka
- School of Medicine, Stanford University, Stanford, CA 94305-5345, USA.,Nancy Pritzker Laboratory, Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305-5345, USA
| | - Jacqueline N Crawley
- Laboratory of Behavioral Neuroscience, National Institute of Mental Health, Bethesda, MD 20892-9663, USA
| | - Ricardo E Dolmetsch
- Department of Neurobiology, Stanford University, Stanford, CA 94305-5345, USA.,Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA
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