Abstract
Adiponectin exerts anti-diabetic and anti-atherogenesis properties through its 2 receptors (AdipoR1 and AdipoR2). However, the signaling pathways responsible for the anti-inflammatory effects of adiponectin are largely unknown. In this study, we identified the lymphotoxin (LT)-β receptor (LTBR) as an interacting partner of human AdipoR1 by using a yeast two-hybrid screening. The interaction between LTBR and AdipoR1 was confirmed by co-immunoprecipitation and co-localization analysis. Furthermore, adiponectin incubation inhibited lymphotoxin-induced NF-κB activation and the expression of adhesion molecules in human umbilical vein endothelial cells. These results indicated that AdipoR1 interacted with LTBR and mediated the inhibition of LTBR-activated NF-κB pathway.
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