Direct killing of tumor cells by CIK

"Direct killing of tumor cells by CIK" does not refer to a specific molecule or receptor. Instead, it describes the process by which cytokine-induced killer (CIK) cells—a heterogeneous population of ex vivo expanded T lymphocytes—directly lyse tumor cells through mechanisms such as engagement of natural killer receptors like NKG2D and secretion of cytolytic molecules including perforin and Fas ligand. This activity is MHC-unrestricted and targets both hematological and solid tumors. The term is not suitable as a canonical therapeutic target because it represents an immune effector function rather than an individual protein, gene, or defined molecular entity that can be directly targeted by drugs or biologics.

Other names

Cytokine-induced killer cell direct cytotoxicityCIK cell-mediated tumor killingDirect tumor lysis by CIK cells

not a druggable molecular target; refers to the action of immune effector cells