NCIt definition : A murine IgM monoclonal antibody (MoAb) developed for the potential treatment of graft
versus host disease (GvHD). MoAb ABX-CBL recognizes human CD147 antigen, weakly expressed
on human leukocytes and up-regulated on activated lymphocytes. This MoAb is capable
of neutralizing inflammatory reactions via a complement-dependent cytotoxic mechanism.
However, MoAb ABX-CBL does not offer an improvement over antithymocyte globulin in
the treatment of acute steroid resistant GVHD.;