Cafestol, a coffee diterpene, inhibits urotensin II-induced interleukin-8 expression in human umbilical vein endothelial cells.

Cafestol, a diterpene molecule found in the berries of Coffea arabica L. (Rubiaceae), has been shown to exercise anti-angiogenic and anti-tumorigenic effects. However, cafestol's cellular mechanism has yet to be fully investigated.