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Teneurin-3 controls topographic circuit assembly in the hippocampus
- Source :
- Nature
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- Brain functions rely on specific patterns of connectivity. Teneurins are evolutionarily conserved transmembrane proteins that instruct synaptic partner matching in Drosophila and are required for vertebrate visual system development. The roles of vertebrate Teneurins in connectivity beyond the visual system remain largely unknown and their mechanisms of action have not been demonstrated. Here we show that mouse Teneurin-3 is expressed in multiple topographically interconnected areas of the hippocampal region, including proximal CA1, distal subiculum, and medial entorhinal cortex. Viral-genetic analyses reveal that Teneurin-3 is required in both CA1 and subicular neurons for the precise targeting of proximal CA1 axons to distal subiculum. Furthermore, Teneurin-3 promotes homophilic adhesion in vitro in a splicing isoform-dependent manner. These findings demonstrate striking genetic heterogeneity across multiple hippocampal areas and suggest that Teneurin-3 may orchestrate the assembly of a complex distributed circuit in the mammalian brain via matching expression and homophilic attraction.
- Subjects :
- Male
0301 basic medicine
Hippocampus
Nerve Tissue Proteins
Biology
Hippocampal formation
Article
Mice
03 medical and health sciences
Neural Pathways
Cell Adhesion
Animals
Entorhinal Cortex
CA1 Region, Hippocampal
Mice, Knockout
Neurons
Teneurin
Multidisciplinary
Alternative splicing
Subiculum
Membrane Proteins
Entorhinal cortex
Axons
Transmembrane protein
Alternative Splicing
Drosophila melanogaster
030104 developmental biology
nervous system
RNA splicing
biology.protein
Female
Neuroscience
Protein Binding
Subjects
Details
- ISSN :
- 14764687 and 00280836
- Volume :
- 554
- Database :
- OpenAIRE
- Journal :
- Nature
- Accession number :
- edsair.doi.dedup.....2ee29366a0a5e6c1fb7a7350ab319797