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Axonal translation of β-catenin regulates synaptic vesicle dynamics.

ABSTRACT: Many presynaptic transcripts have been observed in axons, yet their role in synapse development remains unknown. Using visually and pharmacologically isolated presynaptic terminals from dissociated rat hippocampal neurons, we found that ribosomes and β-catenin mRNA preferentially localize to recently formed boutons. Locally translated β-catenin accumulates at presynaptic terminals, where it regulates synaptic vesicle release dynamics. Thus, local translation of β-catenin is a newly described mechanism for axons to independently functionalize nerve terminals at great distances from cellular somata.

SUBMITTER: Taylor AM

PROVIDER: S-EPMC3651888 | biostudies-literature | 2013 Mar

REPOSITORIES: biostudies-literature

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Axonal translation of β-catenin regulates synaptic vesicle dynamics.

Taylor Anne Marion AM Wu Jason J Tai Hwan-Ching HC Schuman Erin M EM

The Journal of neuroscience : the official journal of the Society for Neuroscience 20130301 13

Many presynaptic transcripts have been observed in axons, yet their role in synapse development remains unknown. Using visually and pharmacologically isolated presynaptic terminals from dissociated rat hippocampal neurons, we found that ribosomes and β-catenin mRNA preferentially localize to recently formed boutons. Locally translated β-catenin accumulates at presynaptic terminals, where it regulates synaptic vesicle release dynamics. Thus, local translation of β-catenin is a newly described mec ...[more]

PMID: 23536073

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