Cell-mediated immune function

Cell-mediated immune function" refers to a broad **immune process** rather than a specific molecule, receptor, or druggable target. It describes the arm of the adaptive immune system that relies on T lymphocytes (T cells), macrophages, natural killer (NK) cells, and cytokines to identify and destroy infected or abnormal host cells—especially those harboring intracellular pathogens such as viruses, some bacteria, fungi, and cancerous transformations[1][2][3][4]. This process does not involve antibodies but instead depends on antigen presentation via major histocompatibility complex (MHC) molecules to activate T cell responses. The main effector mechanisms include direct killing by cytotoxic T lymphocytes (CD8+), activation of macrophages by helper T cells (CD4+), and orchestration of further immune responses through cytokine signaling[1][2][5]. Because "cell-mediated immune function" is a physiological pathway rather than a discrete molecular entity like a receptor or enzyme, it is not considered an individual therapeutic target; instead, drugs may modulate components within this pathway. **Note:** This entry is not suitable for structured target information because it does not correspond to a single molecule/receptor/target but rather an entire class of immune functions involving multiple cell types and molecular pathways[1][2][3].

Other names

Cell-mediated immunityCellular immunity