Antigen recognition by CD1d-restricted NKT T cell receptors. 2010

Dale I Godfrey, and Daniel G Pellicci, and Onisha Patel, and Lars Kjer-Nielsen, and James McCluskey, and Jamie Rossjohn
Department of Microbiology & Immunology, University of Melbourne, Grattan St, Parkville, Victoria 3010, Australia. godfrey@unimelb.edu.au <godfrey@unimelb.edu.au>

alphabeta T cell receptors (TCRs) have traditionally been viewed as receptors for peptide antigens presented by either Major Histocompatibility Complex (MHC) class I (for CD8 T cells) or MHC class II (for CD4 T cells) antigen-presenting molecules. However, it is now clear that some T cell lineages express TCRs that are specialized for recognition of lipid-based antigens presented by the MHC class I-like CD1 family. Recently, the molecular basis for the TCR recognition of glycolipid antigens presented by CD1d has revealed an evolutionarily conserved-docking mode that is distinct from that of peptide-based recognition. T cells carrying these receptors follow a unique developmental pathway that results not only in unconventional antigen specificity, but also seemingly exaggerated functional capabilities, which makes these cells and their antigens highly attractive targets for immunotherapeutic manipulation.

UI MeSH Term Description Entries
D007113 Immunity, Innate The capacity of a normal organism to remain unaffected by microorganisms and their toxins. It results from the presence of naturally occurring ANTI-INFECTIVE AGENTS, constitutional factors such as BODY TEMPERATURE and immediate acting immune cells such as NATURAL KILLER CELLS. Immunity, Native,Immunity, Natural,Immunity, Non-Specific,Resistance, Natural,Innate Immune Response,Innate Immunity,Immune Response, Innate,Immune Responses, Innate,Immunity, Non Specific,Innate Immune Responses,Native Immunity,Natural Immunity,Natural Resistance,Non-Specific Immunity
D008055 Lipids A generic term for fats and lipoids, the alcohol-ether-soluble constituents of protoplasm, which are insoluble in water. They comprise the fats, fatty oils, essential oils, waxes, phospholipids, glycolipids, sulfolipids, aminolipids, chromolipids (lipochromes), and fatty acids. (Grant & Hackh's Chemical Dictionary, 5th ed) Lipid
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D011948 Receptors, Antigen, T-Cell Molecules on the surface of T-lymphocytes that recognize and combine with antigens. The receptors are non-covalently associated with a complex of several polypeptides collectively called CD3 antigens (CD3 COMPLEX). Recognition of foreign antigen and the major histocompatibility complex is accomplished by a single heterodimeric antigen-receptor structure, composed of either alpha-beta (RECEPTORS, ANTIGEN, T-CELL, ALPHA-BETA) or gamma-delta (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA) chains. Antigen Receptors, T-Cell,T-Cell Receptors,Receptors, T-Cell Antigen,T-Cell Antigen Receptor,T-Cell Receptor,Antigen Receptor, T-Cell,Antigen Receptors, T Cell,Receptor, T-Cell,Receptor, T-Cell Antigen,Receptors, T Cell Antigen,Receptors, T-Cell,T Cell Antigen Receptor,T Cell Receptor,T Cell Receptors,T-Cell Antigen Receptors
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000941 Antigens Substances that are recognized by the immune system and induce an immune reaction. Antigen
D055610 Antigens, CD1d A major histocompatibility complex class I-like protein that contains an IMMUNOGLOBULIN C1-SET DOMAIN. It plays a unique role in the presentation of lipid ANTIGENS to NATURAL KILLER T-CELLS. CD1d Antigen,Cd1d Molecule,Antigen, CD1d,CD1d Antigens
D055611 Natural Killer T-Cells A specialized subset of T-LYMPHOCYTES that exhibit features of INNATE IMMUNITY similar to that of NATURAL KILLER CELLS. They are reactive to glycolipids presented in the context of the major histocompatibility complex (MHC) class I-like molecule, CD1D ANTIGEN. Invariant Natural Killer T Cell,iNKT Cell,Invariant Natural Killer T-Cells,NKT Cell,NKT Cells,Natural Killer T-Cell,iNKT Cells,Cell, iNKT,Cells, iNKT,Invariant Natural Killer T Cells,Killer T-Cell, Natural,Killer T-Cells, Natural,Natural Killer T Cell,Natural Killer T Cells,T-Cell, Natural Killer,T-Cells, Natural Killer
D037182 T-Cell Antigen Receptor Specificity The property of the T-CELL RECEPTOR which enables it to react with some antigens and not others. The specificity is derived from the structure of the receptor's variable region which has the ability to recognize certain antigens in conjunction with the MAJOR HISTOCOMPATIBILITY COMPLEX molecule. T-Cell Immunologic Specificity,T-Cell Specificity,T-Cell Receptor Specificity,Immunologic Specificity, T-Cell,Specificity, T-Cell,Specificity, T-Cell Immunologic,Specificity, T-Cell Receptor,T Cell Antigen Receptor Specificity,T Cell Immunologic Specificity,T Cell Receptor Specificity,T Cell Specificity

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