Fig. 6From: Persistent stromal fibroblast activation is present in chronic tendinopathyPositive control staining of rheumatoid synovium for markers of stromal fibroblast activation. Representative confocal immunofluorescence images show podoplanin (PDPN) (green), CD248 (purple) and toll-like receptor 4 (TLR4) (red). Cyan represents POPO-1 nuclear counterstain. Scale bar 20 μm.Back to article page