Fig. 2

Synovial cell co-culture with osteochondral injury models. (a) Synovial cell superlots of normal (low synovitis) and inflamed (high synovitis) cells were isolated and cultured on transwells for 4Â days. (b) Osteochondral cores from lateral condyles were subjected to fracture (Fx), injurious compression, or no injury, and (c) co-cultured for 3Â days.