Present as an active principle in the plant Magnolia grandiflora. Displays anxiolytic, antithrombotic, anti-tumor properties, etc. modulates the NF-κB activation pathway, an upstream effector VEGF, COX-2, and MCL1, all significant pro-angiogenic and survival factors. Honokiol induces caspase-dependent apoptosis in a TRAIL-mediated manner, and potentiates the pro-apoptotic effects of doxorubicin and other etoposides.