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FEBS Lett. 2012 May 21;586(10):1547-54. doi: 10.1016/j.febslet.2012.04.021. Epub 2012 Apr 21.

Short-chain fatty acid receptor GPR41-mediated activation of sympathetic neurons involves synapsin 2b phosphorylation.

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1
Department of Genomic Drug Discovery Science, Kyoto University Graduate School of Pharmaceutical Sciences, Sakyo-ku, Kyoto, Japan.

Abstract

Synapsins are neuronal phosphoproteins that coat synaptic vesicles and are believed to function in the regulation of neurotransmitter release. The signaling mechanism for short-chain free fatty acid (SCFA)-stimulated NE release was examined using primary-cultured mouse sympathetic cervical ganglion neurons. Pharmacological and knockdown experiments showed that activation of sympathetic neurons by SCFA propionate involves SCFA receptor GPR41 linking to G??-PLC?3-ERK1/2-synapsin 2 signaling. Further, synapsin 2b directly interacts with activated ERK1/2 and can be phosphorylated on serine when SCFA activates sympathetic neurons.

PMID:
22673524
DOI:
10.1016/j.febslet.2012.04.021
[Indexed for MEDLINE]
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