ML401, a potent chemical probe, selectively antagonizes EBI2 (also known as GPR183) with an IC50 of 1.03 nM. ML401 displays activity in a chemotaxis assay (IC50=6.24 nM). ML401 shows good stability and no toxicity[1].
ML401 shows no toxicity (>50 μM) towards immortalized Fa2-N4 human hepatocytes and non-cytotoxic in MTT in both LnCap and IMR-32 cells (>50 μM)[1].
ML401 shows very good stability in both human plasma and mouse plasma[1].
[1]. Ardecky R, et al. Functional Antagonists of EBI-2. Probe Reports from the NIH Molecular Libraries Program [Internet].