Collagen type II-specific T cell

Collagen type II-specific T cells are T lymphocytes that recognize epitopes (typically the 259-273 peptide region) of collagen type II, a cartilage-specific protein. These T cells include pathogenic effector cells implicated in the initiation and progression of rheumatoid arthritis and osteoarthritis, as well as regulatory subsets (such as Tr1 or induced Tregs) that can suppress inflammation[1][2][3][4]. Their activity is shaped by MHC class II alleles and the posttranslational modifications (such as glycosylation) of collagen II peptides, which impact T cell recognition and tolerance[3][4]. Collagen II-specific T cells serve both as targets and tools for immunomodulatory therapies designed to induce antigen-specific tolerance or to monitor autoimmunity activity in clinical settings[1][2].

Other names

Collagen II-specific T cellCII-specific T cellType II collagen-specific T cell

Drugs like rapamycin, delivered via nanoparticles together with collagen type II peptides, induce regulatory T cell (Treg) differentiation specific to collagen II, dampening autoimmune and inflammatory responses[2].