NCIt synonyms : Autologous Anti-CSPG4 CAR-iCasp9-expressing T Cells; Autologous iC9-CSPG4 CAR T-cells; Autologous Anti-CSPG4 CAR-iC9-expressing T-cells; iC9-CAR.CSPG4 T Cells;
NCIt definition : A preparation of T-lymphocytes that have been genetically modified to express a chimeric
antigen receptor (CAR) specific for chondroitin sulfate proteoglycan 4 (CSPG4) and
the suicide gene inducible caspase 9 (iCasp9 or iC9), with potential immunostimulating
and antineoplastic activities. Upon administration, autologous anti-CSPG4 CAR-iC9-expressing
T-lymphocytes specifically target and bind to CSPG4-expressing tumor cells, resulting
in tumor cell lysis. CSPG4 is overexpressed on a variety of tumor cell types. The
iCasp9 safety switch consists of a full-length caspase 9, including its caspase recruitment
domain, linked to a human FK506 drug-binding domain with an F36V mutation (FKBP12-F36V).
If the administered CAR T-cells lead to unacceptable side effects, the chemical homodimerizer
AP1903 can be administered. AP1903 binds to the FKBP12-F36V drug-binding domain, activates
caspase 9 and results in apoptosis of the administered CAR T-cells.;