Host and immune system

The "Host and immune system" refers to the complex network of cells, tissues, and organs that work together to defend the body against foreign invaders such as bacteria, viruses, and cancer cells (NIH, 2023). It is categorized into innate and adaptive immunity, providing both immediate, non-specific responses and long-term, pathogen-specific protection (Janeway et al., 2001). This term does not represent a single therapeutic target but rather an entire physiological system. Drugs typically target specific molecular components within this system, such as the Programmed cell death protein 1 (PD-1) or Tumor necrosis factor (TNF), to modulate immune activity (PubMed, 2022). Because it encompasses a vast array of biological processes, it cannot be assigned a single molecular classification or a discrete mechanism of action. Therapeutic manipulation of the immune system is central to treating autoimmune disorders, infectious diseases, and various malignancies (StatPearls, 2023). The system's role in disease is dual; while it protects against infection, its dysregulation can lead to chronic inflammation or autoimmunity (Wikipedia, 2024). Consequently, "Host and immune system" is considered an incorrect designation for a specific drug target in a structured database.

Other names

Immune systemHost immunityHost defense mechanism

Not applicable as this is a biological system, not a discrete molecular target.