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| Item Type: | Article |
|---|---|
| Title: | Role of VTA dopamine neurons and neuroligin 3 in sociability traits related to nonfamiliar conspecific interaction |
| Creators Name: | Bariselli, S., Hörnberg, H., Prévost-Solié, C., Musardo, S., Hatstatt-Burklé, L., Scheiffele, P. and Bellone, C. |
| Abstract: | Atypical habituation and aberrant exploration of novel stimuli have been related to the severity of autism spectrum disorders (ASDs), but the underlying neuronal circuits are unknown. Here we show that chemogenetic inhibition of dopamine (DA) neurons of the ventral tegmental area (VTA) attenuates exploration toward nonfamiliar conspecifics and interferes with the reinforcing properties of nonfamiliar conspecific interaction in mice. Exploration of nonfamiliar stimuli is associated with the insertion of GluA2-lacking AMPA receptors at excitatory synapses on VTA DA neurons. These synaptic adaptations persist upon repeated exposure to social stimuli and sustain conspecific interaction. Global or VTA DA neuron-specific loss of the ASD-associated synaptic adhesion molecule neuroligin 3 alters the behavioral response toward nonfamiliar conspecifics and the reinforcing properties of conspecific interaction. These behavioral deficits are accompanied by an aberrant expression of AMPA receptors and an occlusion of synaptic plasticity. Altogether, these findings link impaired exploration of nonfamiliar conspecifics to VTA DA neuron dysfunction in mice. |
| Keywords: | AMPA Receptors, Animal Behavior, Dopaminergic Neurons, Inbred C57BL Mice, Membrane Proteins, Nerve Tissue Proteins, Neuronal Cell Adhesion Molecules, Neuronal Plasticity, Neurons, Social Behavior, Synapses, Transgenic Mice, Ventral Tegmental Area, Animals, Mice |
| Source: | Nature Communications |
| ISSN: | 2041-1723 |
| Publisher: | Nature Publishing Group |
| Volume: | 9 |
| Number: | 1 |
| Page Range: | 3173 |
| Date: | 9 August 2018 |
| Official Publication: | https://doi.org/10.1038/s41467-018-05382-3 |
| PubMed: | View item in PubMed |
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