Short-chain Fatty Acid Receptor GPR41-mediated Activation of Sympathetic Neurons Involves Synapsin 2b Phosphorylation

Overview

Journal FEBS Lett

Specialty Biochemistry

Date 2012 Jun 8

PMID 22673524

Citations 46

Authors

Daisuke Inoue

Ikuo Kimura

Masaki Wakabayashi

Hiroki Tsumoto

Kentaro Ozawa

Takafumi Hara

Yoshinori Takei

Akira Hirasawa

Yasushi Ishihama

Gozoh Tsujimoto

Affiliations

Soon will be listed here.

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.

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