To get new, additional insights on the features of kahweol as an anti-angiogenic compound, we carried out a complete set of in vitro assays previously
used by us to characterize the anti-angiogenic effects of other compounds from natural sources, including aeroplysinin - 1, homocysteine,
ursolic acid, puupehenone, hypericin, hyperforin and aloe - emodin, among others [11], [12], [13], [19], [20], [21].