T-cell receptor on house dust mite-specific CD4+ T cells (HDM-specific TCR) (HDM-specific TCR)

T-cell receptors (TCRs) on house dust mite (HDM)-specific CD4+ T cells are specialized protein complexes that recognize allergenic peptides derived from mites such as Dermatophagoides pteronyssinus (Der p) and Dermatophagoides farinae (Der f) (Source: PubMed, PMID: 22326457). These TCRs bind to allergen fragments presented by Major Histocompatibility Complex (MHC) class II molecules on the surface of antigen-presenting cells, initiating the allergic immune cascade (Source: NIH, StatPearls, 'Type I Hypersensitivity'). In sensitized individuals, this interaction predominantly triggers a Th2-polarized response, leading to the production of IgE and the recruitment of eosinophils, which are hallmarks of allergic asthma and rhinitis (Source: J Allergy Clin Immunol, 2012). Therapeutic strategies targeting these TCRs, such as allergen-specific immunotherapy (AIT), aim to reprogram the immune system toward tolerance by inducing regulatory T cells (Tregs) or shifting the response to a Th1 profile (Source: Nature Reviews Immunology, 2018). Understanding the specific TCR repertoire involved in HDM sensitivity is crucial for developing precision medicine approaches, including peptide-based vaccines and TCR-targeted therapies (Source: Science Immunology, 2020).

Other names

House dust mite-specific T-cell receptorHDM-reactive TCRDer p-specific TCRDer f-specific TCRHDM-specific CD4+ T-cell receptor

Induction of immune tolerance through T-cell anergy, clonal deletion, or immune deviation from a pro-inflammatory Th2 response to a regulatory (Treg) or Th1 response upon controlled, repeated exposure to specific allergen peptides (Source: Nature Reviews Immunology, 2018; J Allergy Clin Immunol, 2017).