Fabien Wauquier, Claire Philippe, Laurent Léotoing, Sylvie Mercier, Marie-Jeanne Davicco, Patrice Lebecque, Jérôme Guicheux, Paul Pilet, Elisabeth Miot-Noirault, Vincent Poitout, Thierry Alquier, Véronique Coxam, Yohann Wittrant
The mechanisms linking fat intake to bone loss remain unclear. By demonstrating the expression of the free fatty acid receptor G-coupled protein receptor 40 (GPR40) in bone cells, we hypothesized that this receptor may play a role in mediating the effects of fatty acids on bone remodeling. Using micro-CT analysis, we showed that GPR40(-/-) mice exhibit osteoporotic features suggesting a positive role of GPR40 on bone density. In primary cultures of bone marrow, we showed that GW9508, a GRP40 agonist, abolished bone-resorbing cell differentiation...
March 1, 2013: Journal of Biological Chemistry