Fig. 5From: Ectopic lymphoid neogenesis is strongly associated with activation of the IL-23 pathway in rheumatoid synovitisRelative expression levels of CXCL13 and CCL21 were determined by quantitative real-time-PCR (qRT-PCR). Induction of RANKL or MMP-1 mRNA was used as positive control for the response to IL-23 or IL-17, respectively. CCL CC chemokine ligand, CXCL CXC chemokine ligand, IL interleukin, mRNA messenger ribonucleic acidBack to article page