MetAP1 Inhibitor

LAF389, a prodrug of LAF153 (HY-183876), is a methionine aminopeptidase (MetAps) inhibitor with an IC₅₀ of 800 nM against MetAp2, and exhibits a maximum inhibition rate of 20% against MetAp1 at 300 nM. LAF389 possesses antiproliferative, antiangiogenic and cytotoxic activities. LAF389 can be used in research related to cancers such as advanced solid tumors.

A-357300 is a reversible and selective MetAP2 inhibitor with IC₅₀s of 0.12 and 57 μM against MetAP2 and MetAP1. A-357300 induces cytostasis by cell cycle arrest at the G1 phase selectively in endothelial cells and in a subset of tumor cells. A-357300 inhibits angiogenesis both in vitro and in vivo and shows potent antitumor efficacy in carcinoma, sarcoma, and neuroblastoma murine models. A-357300 can be used for the studies of neuroblastoma, fibrosarcoma and breast cancer.

A-800141 is an orally active, selective, sulfonamide-based MetAP2 inhibitor (IC₅₀=12 nM) that binds reversibly to MetAP2 and interacts with its manganese ions. A-800141 induces the production of N-terminal methionine-unprocessed GAPDH variants, which in turn triggers G1-phase cell cycle arrest, elevates p21 levels, and reduces the levels of phosphorylated Rb and total cyclin A. A-800141 exhibits anti-angiogenic and tumor growth inhibitory effects, and produces synergistic effects when combined with cytotoxic inhibitors or BCL-2 inhibitors. A-800141 has been widely used in scientific research related to B-cell lymphoma, neuroblastoma, prostate cancer, colon cancer, melanoma and other fields.