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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Anandamide induced PPARgamma transcriptional activation and 3T3-L1 preadipocyte differentiation.

We investigated the effects of anandamide on peroxisome proliferator-activated receptor gamma (PPARgamma) activity. In two different transactivation systems using either full-length or only the ligand binding domain of PPARgamma, we showed that anandamide, but not palmitoylethanolamide induced transcriptional activation of PPARgamma in a dose dependent manner with an EC50 of 8 microM. In addition, competition binding experiments showed that anandamide but not palmitoylethanolamide binds directly to PPAR-ligand binding domain. We also found that anandamide treatment induced 3T3-L1 fibroblast differentiation into adipocytes. Indeed, anandamide induced triglyceride droplet accumulation and the expression of PPARgamma responsive genes such as CCAAT enhancer binding protein alpha ( C-EBPalpha), aP2, PerilipinA and Acrp30. Furthermore, the PPARgamma antagonist (GW9662) inhibited the anandamide-induced 3T3-L1 differentiation confirming that this is a PPARgamma-mediated process. Altogether, these data indicate that anandamide binds PPARgamma and induces cellular PPARgamma signaling.[1]

References

  1. Anandamide induced PPARgamma transcriptional activation and 3T3-L1 preadipocyte differentiation. Bouaboula, M., Hilairet, S., Marchand, J., Fajas, L., Le Fur, G., Casellas, P. Eur. J. Pharmacol. (2005) [Pubmed]
 
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