Insulin B chain epitope-specific T cell receptor

The **Insulin B chain epitope-specific T cell receptor** is a type of antigen receptor expressed on the surface of certain CD4+ or CD8+ T cells that specifically recognizes peptide fragments derived from the insulin B chain, particularly the amino acid sequence spanning residues 9–23. These receptors are central to the autoimmune response in type 1 diabetes, where they mediate recognition of insulin-derived peptides presented by major histocompatibility complex (MHC) molecules on pancreatic beta cells. In animal models such as NOD mice and in human studies, these receptors have been shown to play a key role in disease pathogenesis by driving autoreactive immune responses against pancreatic islets[1][3][4]. Specific motifs within these receptors—such as particular variable region gene segments—are associated with increased disease risk and can serve as biomarkers for patient stratification or monitoring progression toward clinical diabetes[4]. The target itself is not directly druggable but represents an important immunological marker and potential therapeutic target for interventions aiming to modulate pathogenic autoreactive T cells in type 1 diabetes.

Other names

Insulin B-chain-specific T cell receptorInsulin B9-23-specific TCRInsulin-reactive T cell receptor