AB680, a potent and selective CD73 small molecule inhibitor, reverses the AMP/adenosine-mediated impairment of immune effector cell activation by immune checkpoint inhibitors. (March 2018) - Schindler, U.; Becker, A.; Lawson, K.; Jin, L.; Jeffrey, J.; Kalisiak, J.; Yin, F.; Zhang, K.; Chen, A.; Swinarski, D.; Walters, M.J.; Young, S.; et al.