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The Journal of Immunology, Vol 136, Issue 3 769-775, Copyright © 1986 by American Association of Immunologists

ARTICLES

Murine T cells reactive to type II collagen. I. Isolation of lines and clones and characterization of their antigen-induced proliferative responses

JT Hom, JM Stuart and JM Chiller

Mice of the DBA/1 strain develop arthritis after immunization with native chick type II collagen. Although both a humoral and a cell- mediated response specific to type II collagen are associated with the disease, the underlying immunologic basis remains to be established. As an initial step to analyzing the involvement of cellular immunity in collagen-induced arthritis, we isolated and characterized T cell lines and clones specific to type II collagen. Two sets of T cell lines were obtained by limiting dilution. One set was found to react exclusively with denatured type II collagen, whereas the other set responded to both native and denatured type II collagen. The specificity of such T cells was demonstrated by their inability to respond to other soluble proteins such as type I collagen, HGG, KLH, or OVA. Cells from these lines recognized type II collagen only in an MHC (H-2q)-restricted fashion. Furthermore, the collagen-specific T cells were found to respond to type II collagens obtained from various species, including chick, bovine, and rat. Finally, each set of cells displayed a phenotype characteristic of T helper cells, namely Thy-1+, L3T4+, Lyt-2- .




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