Article ; Online: Neurexin1⍺ differentially regulates synaptic efficacy within striatal circuits.
2021 Volume 34, Issue 8, Page(s) 108773
Abstract: Mutations in genes essential for synaptic function, such as the presynaptic adhesion molecule Neurexin1α (Nrxn1α), are strongly implicated in neuropsychiatric pathophysiology. As the input nucleus of the basal ganglia, the striatum integrates diverse ... ...
Abstract | Mutations in genes essential for synaptic function, such as the presynaptic adhesion molecule Neurexin1α (Nrxn1α), are strongly implicated in neuropsychiatric pathophysiology. As the input nucleus of the basal ganglia, the striatum integrates diverse excitatory projections governing cognitive and motor control, and its impairment may represent a recurrent pathway to disease. Here, we test the functional relevance of Nrxn1α in striatal circuits by employing optogenetic-mediated afferent recruitment of dorsal prefrontal cortical (dPFC) and parafascicular thalamic connections onto dorsomedial striatal (DMS) spiny projection neurons (SPNs). For dPFC-DMS circuits, we find decreased synaptic strength specifically onto indirect pathway SPNs in both Nrxn1α |
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MeSH term(s) | Afferent Pathways/cytology ; Afferent Pathways/metabolism ; Animals ; Calcium-Binding Proteins/genetics ; Calcium-Binding Proteins/metabolism ; Corpus Striatum/cytology ; Corpus Striatum/metabolism ; Electrical Synapses/genetics ; Electrical Synapses/metabolism ; Excitatory Postsynaptic Potentials ; Glutamic Acid/metabolism ; Heterozygote ; Homozygote ; Male ; Mice, Inbred C57BL ; Mice, Knockout ; Mutation ; Neural Cell Adhesion Molecules/genetics ; Neural Cell Adhesion Molecules/metabolism ; Optogenetics ; Receptors, N-Methyl-D-Aspartate/metabolism ; Synaptic Transmission ; Mice |
Chemical Substances | Calcium-Binding Proteins ; Neural Cell Adhesion Molecules ; Nrxn1 protein, mouse ; Receptors, N-Methyl-D-Aspartate ; Glutamic Acid (3KX376GY7L) |
Language | English |
Publishing date | 2021-02-24 |
Publishing country | United States |
Document type | Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2649101-1 |
ISSN | 2211-1247 ; 2211-1247 |
ISSN (online) | 2211-1247 |
ISSN | 2211-1247 |
DOI | 10.1016/j.celrep.2021.108773 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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