Figure 1From: Developments in the scientific understanding of rheumatoid arthritisShown is a T cell-APC interaction to illustrate biologic pathways involving rheumatoid arthritis-associated genes (indicated in italics). APC, antigen-presenting cell; IKK, IκB kinase; MHC, major histocompatibility complex; NF-κB, nuclear factor-κB; TCR, T-cell receptor; Th, T-helper; TLR, Toll-like receptor; TNFR2, type 2 TNF receptor.Back to article page