NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

CD19CAR-CD3zeta-4-1BB-CD28-expressing autologous T lymphocytes
Autologous T-lymphocytes transduced with a retroviral vector expressing a chimeric antigen receptor (CAR) consisting of an anti-CD19 scFv (single chain variable fragment) coupled to three co-stimulatory signaling domains derived from CD28, 4-1BB (CD137), and the zeta chain of the T-cell receptor (TCR)/CD3 complex (CD3-zeta), with potential immunomodulating and antineoplastic activities. Upon transfusion, the CD19CAR-CD3zeta-4-1BB-CD28-expressing autologous T-lymphocytes direct the T-lymphocytes to CD19-expressing tumor cells and induce their selective toxicity. CD28, a T-cell surface-associated co-stimulatory molecule, is required for T-cell activation, proliferation, and survival. The 4-1BB co-stimulatory molecule signaling domain enhances activation and signaling after recognition of CD19. CD3-zeta is a transmembrane signaling adaptor polypeptide that regulates the assembly of TCR complexes, modulates the expression of the complex on the cell surface and plays a key role in antigen recognition. CD19 antigen, a B-cell specific cell surface antigen, is expressed in all B-cell lineage malignancies. Check for active clinical trials using this agent. (NCI Thesaurus)