Fibroblast activation protein alpha is expressed by chondrocytes following a pro-inflammatory stimulus and is elevated in osteoarthritis. (Arthritis research and therapy, 2006)

(untitled) - Milner, J; Kevorkian, L; Young, D; Jones, D; Wait, R; Donell, S; Barksby, E; Patterson, A; Middleton, J; Cravatt, B; Clark, I; Rowan, A; et al.