Borrelidin

Macrolide antibiotic. Bacterial, protozoan and mammalian threonyl-tRNA synthetase (THrRS) inhibitor. Antiangiogenic (IC50 = 0.8 nM) and anticancer agent. Induces the collapse of formed capillary tubes in a dose-dependent fashion. In HUVECs, the capillary tube collapsing activity is mediated by the activation of caspases-3 and -8 and induction of apoptosis. Blocks the formation of spontaneous lung metastases of B16-BL6 melanoma cells. Cyclin-dependent kinase (CDK) inhibitor. Antiviral. Potent antimalarial agent (IC50 = 0.97 nM). Inhibitor of potato scab disease.