Immune system function

Immune system function represents the integrated activity of biological structures and processes within an organism that protects against disease. It encompasses the innate immune system, providing immediate non-specific responses, and the adaptive immune system, which develops highly specific memory-based responses to pathogens (National Institutes of Health, 2023). This system is essential for identifying "self" versus "non-self" and for the surveillance and elimination of malignant cells (StatPearls, 2023). Proper function involves a coordinated effort between various cell types, including lymphocytes, neutrophils, and macrophages, as well as signaling molecules like cytokines. Dysregulation of immune function is central to a wide array of conditions, including autoimmune disorders, chronic inflammation, and hypersensitivity reactions. In the context of oncology, the immune system's ability to recognize tumor antigens is a primary focus of immunotherapy (PubMed, 2022). Because it describes a broad physiological state rather than a discrete protein or nucleic acid, it is not classified as a single therapeutic target in drug discovery. Instead, drug development focuses on specific molecular components within the system, such as kinases, receptors, or checkpoints, to modulate overall immune activity.

Other names

Immune systemImmunityHost defenseImmune response

Not applicable as this is a biological system/process rather than a specific molecular target.