CAR T-cells were not detected in CSF or peripheral blood at any point, but endogenous T-cells and inflammatory markers and cytokines, including CXCL10, which is essential for T-cell trafficking, and CCL2, which assists in homing to the tumor [187,188,189], were increased and this increase correlated with symptoms and radiographic evidence of an inflammatory response. The gene discussed is CXCL10; the disease is neoplasm.