The novel effect of polyphenolic diterpene in rosemary, activating oxidative stress sensor

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In this study, the effect of carnosic acid (CA) activating Keap1/Nrf2 pathway, a polyphenolic diterpene in rosemary, on angiogenesis was examined. CA suppressed microvessel outgrowth in an ex vivo serum-free matrix culture model using a rat aortic. The antiangiogenic effect of CA was shown in angiogenesis models using human umbilical vein endothelial cells with regard to tube formation on reconstituted basement membrane, proliferation and chemotaxis. These results suggest that CA may be useful for prevention and treatment of angiogenesis-dependent disorders.