yeah, "immunostimulatory" mabs are very interesting. MEDX (& PFE) also have their anti-CTLA-4 mabs, another T cell espresso type mab. The CTLA-4 mabs have shown some darn good melanoma results, with some autoimmune trade-offs. (and I think you already know my pick for the mab that should fire up T cells most effectively and safely).