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  • A preparation of autologous T-lymphocytes genetically engineered with a T cell Antigen Coupler (TAC), comprising of a domain that targets the tumor-associated antigen (TAA) cluster of differentiation 19 (CD 19) and another domain that binds to the endogenous T cell receptor (TCR), anchored in the membrane via the CD4 co-receptor domain, with potential immunostimulating and antineoplastic activities. Upon administration, autologous anti-CD19 TAC-T cells TAC01-CD19 targets and binds to CD19-expressing tumor cells and activates TCR-mediated signaling pathways, leading to T cell-mediated killing of CD19-expressing tumor cells. CD19 antigen is a B-cell specific cell surface antigen overexpressed in B-cell lineage malignancies.
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