Figure 2From: Phenotypic and functional characterisation of CCR7+ and CCR7- CD4+memory T cells homing to the joints in juvenile idiopathic arthritisExpression of CD4, CD20, CD45RO, CCR7, CCR5 and CXCR3 in synovial tissue obtained from patients with juvenile idiopathic arthritis (JIA) after synoviectomy. (a, b) Presence of CCR7+ cells (red) in the sublining layer of a synovial tissue characterised by a diffuse lymphocytic infiltrate (scattered CD4+ cells, brown) from a 14-year-old girl with antinuclear antibody-positive (ANA+) oligoarticular JIA (no. 1, Table 3) (Magnification × 20). (c–n) Serial stainings with CD20, CD4, CCR7, CXCR3 and CCR5 monoclonal antibody in synovial tissue from a 12-year-old girl with ANA+ oligoarticular JIA (no. 4, Table 3). The distribution of cells positive for CCR7, CCR5 and CXCR3 is shown in two different areas containing T and B cell aggregates (magnification × 10). (o, p) Different expression of CCR7 (red) and CCR5 (brown) in synovial membrane infiltrate (patient no. 1, Table 3) (magnification × 4.5). CCR7+ cells are observed exclusively in the perivascular lymphocytic infiltrate of the deep sublining layer (open rectangle). Conversely, CCR5-positive cells are prevalently observed at the level of the lining layer and superficial subintima (*) and in the perivascular infiltrates of the sublining layer (**).Back to article page