18-Deoxyherboxidiene is a bacterial metabolite that has been found in Streptomyces QN18690 and has antiangiogenic activity.1 It binds to the SF3b subunit of spliceosome-associated protein 130 (SAP130), SAP145, or SAP155 in HeLa cell extracts when used at 100, 1,000, and 10,000 ng and induces the accumulation of unspliced mRNA in HEK293T cells in a reporter assay. 18-Deoxyherboxidiene inhibits VEGF-induced migration of human umbilical vein endothelial cells (HUVECs) in a concentration-dependent manner and VEGF-induced HUVEC tube formation when used at a concentration of 0.3 µg/ml.
1.Kakeya, H., Kaida, D., Sekiya, H., et al.RQN-18690A (18-deoxyherboxidiene) targets SF3b, a spliceosome component, and inhibits angiogenesisJ. Antibiot. (Tokyo)69(2)121-123(2016)