“…Huang W 1,11 , Luo S 2,11 , Chen D 3,11 , Tsai C 4,11 , Hsieh S 5,11 ,Lu L 6,11 , Jan Wu Y 7,11 , Chen M 4,11 , Hsieh T 1,11 , Yeh F 8,11 , Su Y 9,11 , Liao Y 1,11 , Lee T 10,11 , Sheu H Therefore, the in vitro experimental method of using inflammatory cytokines such as interleukin-1 beta (IL-1ß) to create an inflammatory environment in two-dimensional (2D) monolayer culture is certainly different from the in vivo inflammatory environment of OA. In addition, the effects of various factors affecting the survival/engraftment of administered cells can be evaluated in a 3D co-culture system composed of spheroids created from different lineage cells within the joint cavity that would better mimic the inflammatory environment of OA.…”