Definition

A preparation of autologous T lymphocytes that have been genetically engineered to express a single-domain antibody that recognizes human CD19, fused to the CD3-epsilon T-cell receptor (TCR) subunit which, upon expression is incorporated into the endogenous TCR complex, with potential antineoplastic activity. Upon administration, the autologous anti-CD19 TCR fusion construct (TRuC) T cells TC-110 specifically target and bind to CD19-expressing tumor cells. This leads to T-cell activation and T-cell mediated lysis of CD19-expressing tumor cells. CD19 antigen is a B-cell specific cell surface antigen overexpressed in B-cell lineage malignancies. Compared to chimeric antigen receptor (CAR) T cells, TRuCs may be associated with less pro-inflammatory cytokine secretion and fewer adverse effects without compromising therapeutic efficacy.