Antibodies, Bispecific/administration & dosage; Antigens, Neoplasm/immunology; CD3 Complex/immunology; Cell Adhesion Molecules/immunology; Immunotherapy; Mammary Neoplasms, Experimental/immunology; T-Lymphocytes/immunology; Animals; Antibodies, Bispecific/adverse effects; Antigens, Neoplasm/genetics; Antigens, Neoplasm/metabolism; CD3 Complex/genetics; CD3 Complex/metabolism; Cell Adhesion Molecules/genetics; Cell Adhesion Molecules/metabolism; Cell Proliferation/drug effects; Clonal Anergy/drug effects; Cytokines/metabolism; Epithelial Cell Adhesion Molecule; Female; Humans; Immunologic Factors/administration & dosage; Immunologic Factors/adverse effects; Lymphocyte Activation/drug effects; Mammary Neoplasms, Experimental/pathology; Mammary Neoplasms, Experimental/therapy; Mice; Mice, Inbred BALB C; Neoplasm Transplantation; Protein Engineering; T-Lymphocytes/drug effects; T-Lymphocytes/metabolism; T-Lymphocytes/pathology; Time Factors