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Berberine, which is a well‑known drug used in traditional medicine, has been demonstrated to exert diverse pharmacological effects, including anti‑inflammatory effects. However, whether berberine can affect the production of inflammatory molecules in vascular endothelial cells remains to be elucidated. Therefore, the present study aimed to determine the effects of berberine, and the underlying molecular mechanisms of these effects. The effect of berberine on tumor necrosis factor (TNF)‑α‑induced inflammatory molecule expression was examined in cultured human aortic endothelial cells (HAECs). The HAECs were stimulated with TNF‑α and incubated with or without berberine. The activation of nuclear factor (NF)‑κB and adenosine monophosphate‑activated protein kinase (AMPK) were analyzed using western blotting, and the protein secretion of intercellular adhesion molecule (ICAM)‑1 and monocyte chemoattractant protein (MCP)‑1 was measured using ELISA kits. The mRNA expression levels of ICAM‑1 and MCP‑1 were analyzed using reverse transcription‑quantitative polymerase chain reaction. The results of the present study demonstrated that berberine significantly inhibited the TNF‑α‑induced expression of ICAM‑1 and MCP‑1, as well as the activation of NF‑κB in the HAECs. These effects were attenuated following co‑treatment with AMPK inhibitor compound C, or specific small interfering RNAs. In conclusion, the results of the present study indicated that berberine inhibits the TNF‑α‑induced expression of ICAM‑1 and MCP‑1, and the activation of NF‑κB in HAECs in vitro, possibly through the AMPK‑dependent pathway.

molecular medicine reports

Berberine inhibits tumor necrosis factor-α-induced expression of inflammatory molecules and activation of nuclear factor-κB via the activation of AMPK in vascular endothelial cells