Immune cell receptors and cytokine receptors

Immune cell receptors and cytokine receptors represent a vast and diverse group of proteins essential for the regulation and execution of the immune response. These receptors, found on various leukocytes such as T cells, B cells, and macrophages, respond to external stimuli and internal signaling molecules like cytokines, chemokines, and growth factors (StatPearls, NBK545239). Cytokine receptors, a major subset, are categorized into families based on their structural motifs and signaling pathways, such as the hematopoietin receptor family and the tumor necrosis factor (TNF) receptor superfamily (UniProt, KW-0202). In many pathological states, including autoimmune diseases and cancer, these receptor-mediated pathways are often overactive or suppressed, leading to tissue damage or immune evasion (PubMed, 25403444). Consequently, they are among the most significant classes of therapeutic targets, with numerous approved biologics and small molecules designed to modulate their activity to treat inflammatory conditions and malignancies. However, therapeutic manipulation of these receptors requires careful management due to risks like cytokine release syndrome and systemic immunosuppression.

Other names

Immune receptorsCytokine receptorsLeukocyte surface antigensImmunoreceptors

Drugs targeting these receptors generally function by blocking ligand binding (antagonism), neutralizing the circulating ligands, or modulating downstream signaling pathways to either suppress or enhance immune activity.