A murine IgG1 anti-CD45 monoclonal antibody (MoAb) with immunotherapeutic activity. CD45 antigen, a receptor protein-tyrosine phosphatase essential for T cell development and lymphocyte activation, is expressed on virtually all leukocytes. MoAb BC8 has specificity for hematopoietic tissues and may be used in targeted immunotherapy. Check for active clinical trials using this agent. (NCI Thesaurus)