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.

autologous PD-1 antibody-expressing mesothelin-specific CAR-T cells
Genetically modified, autologous T lymphocytes that express an antibody that targets the negative immunoregulatory human cell surface receptor programmed cell death protein 1 (PD-1; PDCD1; CD279) and are transduced with a gene encoding a chimeric antigen receptor (CAR) specific for the human tumor-associated antigen (TAA) mesothelin, with potential immunomodulating and antineoplastic activities. After isolation, transduction, expansion in culture, and reintroduction into the patient, the autologous PD-1 antibody expressing mesothelin specific CAR-T cells specifically target and kill mesothelin-expressing tumor cells. The anti-PD-1 expressed on the CAR-T cells binds to PD-1 expressed on T cells and prevents the interaction of PD-1 with its ligand programmed cell death 1 ligand 1 (PD-L1, PD-1L1; CD274) expressed on cancer cells, which prevents PD-1-mediated signaling and T-cell exhaustion, enhances T-cell activation, and results in enhanced toxicity in mesothelin-expressing tumor cells. PD-1, an immunoglobulin (Ig) superfamily transmembrane protein and inhibitory receptor, negatively regulates T-cell activation and overexpression within the tumor microenvironment and inhibits T-cell function. Mesothelin, a cell surface glycoprotein involved in cell adhesion, is overexpressed in a variety of cancer cell types. Check for active clinical trials using this agent. (NCI Thesaurus)

Synonym:autologous PD-1 antibody expressing mesothelin specific CAR-T cells