Multiple immune cell populations and signaling pathways

Multiple immune cell populations and signaling pathways is a collective term describing the diverse array of cells in the immune system—such as T cells, B cells, and myeloid cells—and the complex biochemical cascades (e.g., JAK/STAT, NF-kappaB) that regulate their function (Janeway et al., 2001). This entry does not represent a single, discrete therapeutic target but rather a broad biological system or a summary of a multi-faceted immune response. In drug discovery, a target is typically defined as a specific molecular entity, such as a protein or nucleic acid, whose activity can be modified by a drug to achieve a therapeutic outcome (Schenone et al., 2013). Consequently, this term is considered incorrect as a target name because it is too broad and lacks the specificity required for molecular classification or direct pharmacological intervention. Therapeutic strategies often involve modulating specific nodes within these populations and pathways to treat conditions like cancer, chronic inflammation, and autoimmune disorders. While modern therapies like checkpoint inhibitors or CAR-T cells affect these systems, they do so by interacting with specific receptors rather than the system as a whole. Therefore, for the purposes of target annotation, this entry should be replaced with specific molecular identifiers.

Not applicable as this refers to a broad biological system rather than a specific molecular target.