Caffeoylserotonin suppresses THP-1 monocyte adhesion and migration via inhibition of the integrin β1/FAK/Akt signalling pathway.

We investigated the effect of caffeoylserotonin (CaS) on THP-1 monocyte migration and adhesion to fibronectin in response to MCP-1. CaS decreased monocyte adhesion and migration induced by MCP-1, together with CCR2 expression and α5β1 integrin, and activated β1 integrin expression on the cell surface. CaS also inhibited FAK and Akt phosphorylation. We found that CaS had anti-inflammatory activity based on inhibition of adhesion and migration via inhibition of the integrin β1/FAK/Akt signalling pathway. Thus, the inhibitory effects of CaS on monocyte function may support the future development of this compound as a potential treatment for inflammation-dependent diseases.