Phenotypic analysis will be paired with functional analysis; whole PBL or enriched CAR + T cells will be coincubated with ovarian cancer cells expressing FRα, or stimulated with PHA-ionomycin, FRα protein or CD3/CD28 beads as control, followed by interrogation of intracellular cytokines (INF-γ, TNF-α, MIP-1α, IL-2, IL-17, IL-4, TGF-β, IL-10), granzymes, CD137 and CD107a. The gene discussed is FOLR1; the disease is ovarian cancer.