Figure 4From: Synovial expression of IL-15 in rheumatoid arthritis is not influenced by blockade of tumour necrosis factorTNF-producing cells in a patient with RA with a subsequent good response to infliximab. Sections of synovial biopsy tissue from patient no. 6 before (a) and after (b) treatment with infliximab show diaminobenzidine staining (haematoxylin counterstained) for TNF neutralizing antibodies mAb1 and mAb11. Original magnification × 250.Back to article page