Lomeguatrib

Lomeguatrib, also known as PaTrin-2, is a potent Inhibitor of O6-Alkylguanine-DNA-Alkyltransferase. Lomeguatrib is also a nontoxic low-molecular weight pseudosubstrate that has the ability to inactivate MGMT. Lomeguatrib can be used with temozolomide (TMZ) for GBM treatment. (In Vitro) :Lomeguatrib (Compound 10) is a O6-methylguanine methyltransferase (MGMT) inhibitor, with an IC50 of 9 nM in cell-free assay and ~6 nM in MCF-7 cells. Lomeguatrib (10 μM) substantially increases the growth inhibitory effects of temozolomide in MCF-7 cells (D60=10 μM with Lomeguatrib vs 400 μM without) . (In Vivo) :Lomeguatrib (20 mg/kg i.p.) completely inactivates MGMT within 2 h, but shows no significant effect on tumor growth in MCF-7 xenografts.