T cell receptor recognizing dengue virus-1 peptide-MHC complexes (DENV-1 TCR)

The T cell receptor (TCR) recognizing Dengue virus-1 (DENV-1) peptide-MHC complexes is a critical component of the adaptive immune response against dengue infection. These receptors, expressed on the surface of T lymphocytes, specifically bind to viral peptides (such as those derived from non-structural proteins like NS3) presented by Major Histocompatibility Complex (MHC) molecules on the surface of infected cells or professional antigen-presenting cells like dendritic cells. This interaction is the primary signal for T cell activation, leading to the destruction of infected cells and the secretion of antiviral cytokines. In the context of DENV-1, specific TCR clones are responsible for establishing long-term immunological memory. However, the specificity of these receptors is a double-edged sword; cross-reactive T cells from a previous infection with a different serotype can sometimes contribute to immunopathology, such as dengue hemorrhagic fever, through suboptimal activation and excessive cytokine release. Understanding these TCR-peptide-MHC interactions is vital for the development of T cell-based vaccines and immunotherapies aimed at providing broad protection against all dengue serotypes.

Other names

Dengue virus-specific T cell receptorDENV-1 peptide-HLA complex receptorTCR recognizing DENV-1 antigens

Recognition of specific viral peptide-MHC complexes leads to T cell activation, proliferation, and the elimination of infected cells through cytotoxic activity or cytokine release.