Figure 4From: Apoptosis is not the major death mechanism induced by celecoxib on rheumatoid arthritis synovial fibroblastsComparison of morphological changes of rheumatoid arthritis fibroblast-like synoviocytes (RA FLSs) treated with either celecoxib or tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) by light microscopy (magnification × 300). Untreated RA FLSs (upper panel) and cells treated for either 1 hour with 60 μm celecoxib (middle panel) or 8 hours with 1 nM TRAIL (lower panel) are shown. Apoptotic cells are indicated by arrows.Back to article page