Dendritic cell pattern-recognition receptors (DC PRRs) (DC PRRs)

Dendritic cell pattern-recognition receptors (PRRs) are a diverse group of germline-encoded proteins expressed by dendritic cells to detect pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs) (Wikipedia, 2024; NIH, 2024). These receptors, which include Toll-like receptors (TLRs), C-type lectin receptors (CLRs), NOD-like receptors (NLRs), and RIG-I-like receptors (RLRs), serve as the primary sensors of the innate immune system (NIH, 2024; British Society for Immunology, 2024). Upon activation, they trigger signaling cascades that lead to dendritic cell maturation, cytokine production, and the initiation of adaptive immune responses by presenting antigens to T cells (NIH, 2023; British Society for Immunology, 2024). In therapeutic contexts, PRR agonists such as imiquimod and CpG oligonucleotides are used as vaccine adjuvants and cancer immunotherapies to enhance immune surveillance (Wikipedia, 2024; MDPI, 2023). Targeting specific PRRs on dendritic cell subsets allows for precise modulation of the immune system, though challenges such as systemic toxicity (e.g., cytokine release syndrome) and the risk of inducing autoimmunity remain significant concerns (NIH, 2024; MDPI, 2023).

Other names

Pattern recognition receptorsInnate immune receptorsDC surface receptorsDendritic cell innate receptors

Agonism of innate immune receptors to stimulate dendritic cell maturation and antigen presentation; antagonism to inhibit pathological inflammatory signaling; targeted delivery of antigens via receptor-mediated endocytosis.