The molecular basis for recognition of CD1d/α-galactosylceramide by a human non-Vα24 T cell receptor. [PDF]
CD1d-mediated presentation of glycolipid antigens to T cells is capable of initiating powerful immune responses that can have a beneficial impact on many diseases.
Jacinto López-Sagaseta +4 more
doaj +1 more source
Structure and binding kinetics of three different human CD1d-?-galactosylceramide-specific T cell receptors [PDF]
Invariant human TCR V?24-J?18+/Vbeta11+ NKT cells (iNKT) are restricted by CD1d-?-glycosylceramides. We analyzed crystal structures and binding characteristics for an iNKT TCR plus two CD1d-?-GalCer-specific Vbeta11+ TCRs that use different TCR Valpha ...
Peter M. Villiger +42 more
core +1 more source
Natural killer T (NKT) cells comprise a family of specialized T cells that recognize lipid antigens presented by CD1d. Based on their T cell receptor (TCR) usage and antigen-specificities, CD1d-restricted NKT cells have been divided into two main subsets:
Elodie eMacho-Fernandez, Manfred eBrigl
doaj +1 more source
CD1d Endosomal Trafficking Is Independently Regulated by an Intrinsic CD1d-Encoded Tyrosine Motif and by the Invariant Chain [PDF]
Endosomal trafficking is an essential component of the CD1 pathway of lipid antigen presentation to T cells. We demonstrate that CD1d access to endosomal compartments is under dual regulation by an intrinsic tyrosine-based motif, which governs intense recycling between the plasma membrane and the endosome, and by the invariant chain, with which CD1d ...
Jayawardena-Wolf, Jayanthi +4 more
openaire +2 more sources
Invariant Natural Killer T (iNKT) cells are T lymphocytes expressing a conserved semi-invariant TCR specific for lipid antigens (Ags) restricted for the monomorphic MHC class I-related molecule CD1d.
Gloria Delfanti +4 more
doaj +1 more source
iNKT Cells Suppress Pathogenic NK1.1+CD8+ T Cells in DSS-Induced Colitis
T cells producing IFNγ play a pathogenic role in the development of inflammatory bowel disease (IBD). To investigate the functions of CD1d-dependent invariant natural killer T (iNKT) cells in experimental colitis induced in Yeti mice with dysregulated ...
Sung Won Lee +5 more
doaj +1 more source
Unique interplay between sugar and lipid in determining the antigenic potency of bacterial antigens for NKT cells. [PDF]
Invariant natural killer T (iNKT) cells are an evolutionary conserved T cell population characterized by features of both the innate and adaptive immune response.
Enrico Girardi +9 more
doaj +1 more source
Functionally Distinct Subsets of CD1d-restricted Natural Killer T Cells Revealed by CD1d Tetramer Staining [PDF]
CD1d-restricted natural killer (NK)T cells are known to potently secrete T helper (Th)1 and Th2 cytokines and to mediate cytolysis, but it is unclear how these contrasting functional activities are regulated. Using lipid antigen–loaded CD1d tetramers, we have distinguished two subsets of CD1d-restricted T cells in fresh peripheral blood that differ in ...
Gumperz, Jenny E. +3 more
openaire +2 more sources
Norovirus infection cause epidemic nonbacterial gastroenteritis in patients. The immune mechanisms responsible for the clearance of virus are not completely understood. We examined whether NKT cells are effective against norovirus infection using CD1d KO
Hiroki Ishikawa +7 more
doaj +1 more source
Neurofibromin 1 Impairs Natural Killer T-Cell-Dependent Antitumor Immunity against a T-Cell Lymphoma
Neurofibromin 1 (NF1) is a tumor suppressor gene encoding a Ras GTPase that negatively regulates Ras signaling pathways. Mutations in NF1 are linked to neurofibromatosis type 1, juvenile myelomonocytic leukemia and Watson syndrome.
Jianyun Liu +6 more
doaj +1 more source

