CEACAM5 and neoplasm: Furthermore, CEA TCB-mediated cross-linking of T cells to tumor cells led to a selective elimination of CEA+ tumor areas 72 h post-treatment (Fig. 5c, d), and combination of CEA TCB IgG-IL2v further accelerated the elimination of tumor areas, reaching statistical significance as early as 24 h post-treatment (Fig. 5c, d).