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Literature DB >> 20399779

Roles of GPR41 and GPR43 in leptin secretory responses of murine adipocytes to short chain fatty acids.

Mohamed S Zaibi¹, Claire J Stocker, Jacqueline O'Dowd, Alison Davies, Mohamed Bellahcene, Michael A Cawthorne, Alastair J H Brown, David M Smith, Jonathan R S Arch.

Abstract

GPR41 is reportedly expressed in murine adipose tissue and mediates short chain fatty acid (SCFA)-stimulated leptin secretion by activating Galpha(i). Here, we agree with a contradictory report in finding no expression of GPR41 in murine adipose tissue. Nevertheless, in the presence of adenosine deaminase to minimise Galpha(i) signalling via the adenosine A1 receptor, SCFA stimulated leptin secretion by adipocytes from wild-type but not GPR41 knockout mice. Expression of GPR43 was reduced in GPR41 knockout mice. Acetate but not butyrate stimulated leptin secretion in wild-type mesenteric adipocytes, consistent with mediation of the response by GPR43 rather than GPR41. Pertussis toxin prevented stimulation of leptin secretion by propionate in epididymal adipocytes, implicating Galpha(i) signalling mediated by GPR43 in SCFA-stimulated leptin secretion. Copyright 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

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Year: 2010 PMID： 20399779 DOI： 10.1016/j.febslet.2010.04.027

Source DB: PubMed Journal: FEBS Lett ISSN： 0014-5793 Impact factor: 4.124

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Roles of GPR41 and GPR43 in leptin secretory responses of murine adipocytes to short chain fatty acids.

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