Human adaptive and innate immune receptors

The term "human adaptive and innate immune receptors" refers to a vast and diverse collection of protein families that mediate the body's defense against pathogens and internal threats. Innate immune receptors, such as Toll-like receptors (TLRs), C-type lectin receptors (CLRs), and NOD-like receptors (NLRs), recognize conserved microbial patterns to trigger rapid, non-specific inflammatory responses (Janeway & Medzhitov, 2002, Annu Rev Immunol). Adaptive immune receptors, primarily T-cell receptors (TCRs) and B-cell receptors (BCRs), provide highly specific recognition of unique antigens and establish long-term immunological memory (Murphy & Weaver, 2016, Janeway's Immunobiology). These receptors are essential for maintaining homeostasis and distinguishing between self and non-self entities. Dysregulation of these receptor pathways is a hallmark of many diseases, including autoimmune conditions where the system attacks host tissues and cancer where the system fails to recognize malignant cells. Because this term describes a functional category containing hundreds of unique proteins with distinct structures and signaling pathways, it is considered a class of targets rather than a single molecular entity. Drug discovery efforts typically focus on specific members of these families, such as checkpoint inhibitors or TLR agonists, to treat conditions including chronic inflammation, infectious diseases, and various cancers (Kawai & Akira, 2011, Immunity). Consequently, while the category is biologically significant, it is too broad to serve as a specific therapeutic target in a clinical or pharmacological context.

Other names

Immune receptorsInnate and adaptive immune system receptorsPattern recognition and antigen receptors

Modulation of immune signaling pathways through agonism or antagonism of specific receptor proteins within the innate or adaptive immune systems.