Immune system pattern recognition and antigen receptors (PRR/AR)

Immune system pattern recognition and antigen receptors is a comprehensive category encompassing the molecular sensors used by the immune system to detect threats (Source: IUPHAR/BGP, 2024). Pattern recognition receptors (PRRs), such as Toll-like receptors (TLRs) and NOD-like receptors (NLRs), identify conserved microbial structures known as pathogen-associated molecular patterns (PAMPs) (Source: StatPearls, 2023). Antigen receptors, including B-cell receptors (BCRs) and T-cell receptors (TCRs), provide highly specific recognition of diverse antigens through unique genetic rearrangement processes (Source: Janeway's Immunobiology, 9th Ed). These receptors are central to the initiation of both innate and adaptive immune responses and are frequently dysregulated in autoimmune diseases, chronic inflammation, and cancer (Source: Nature Reviews Immunology, 2020). Therapeutic agents targeting these receptors include TLR agonists like Imiquimod for skin malignancies and various monoclonal antibodies that modulate TCR or BCR signaling pathways (Source: PubMed, PMID: 32188954). Dysregulation of these pathways can lead to pathological states such as cytokine release syndrome or chronic autoimmunity (Source: NIH, 2023). Ongoing research focuses on harnessing these receptors for novel immunotherapies and vaccine adjuvants (Source: Nature, 2022).

Other names

Pattern recognition receptorsAntigen receptorsInnate and adaptive immune receptorsPRRsTCRsBCRs

Modulation of immune signaling pathways via the activation or inhibition of innate sensors or adaptive receptors to regulate cytokine production and cellular immunity.