Compartment | Antigen-induced arthritis (AIA) | K/BxN serum-induced arthritis (KRN) |
---|---|---|
T cells | T cell-independent [9] | |
B cells | B cell-independent [22] | B cell-independent [9] |
Antibodies | Antibodies unnecessary/insufficient to induce arthritis to the full extent [21, 22, 30] | Antibodies necessary/sufficient to induce arthritis in full extent [9] |
Complement | Complement-independent [31] | Complement-dependent [12] |
Fc receptors | FcγR-dependent [12] | |
Neutrophils, macrophages | Neutrophils important [34, 35], but complement-independent [31] | |
Cytokines | IL-1-, TNF-α-dependent [16] IL-6-, osteopontin-independent [16, 37] |