Biological Activity |
AB-680 is highly potent, reversible and selective small molecule inhibitor of CD73 (an ecto-nucleotidase), with a Ki of 4.9 pM for hCD73, displays >10, 000-fold selectivity over related ecto-nucleotidases CD39. Anti-tumor activity[1]. IC50 & Target: Ki: 4.9 pM (hCD73)[1] IC50: 43 pM (Soluble hCD73)[1] In Vitro: AB-680 (AB680) inhibits soluble hCD73 with an IC50 of 0.043 nM, also inhibits hCD73 in CHO cells, suppresses CD73 in human, mouse CD8+ T Cells and hPBMC, with IC50s of 0.070, 0.008, 0.66 and 0.011 nM, respectively[1]. |