Fig. 5.
Real-time RT-PCR analysis of rabbit adipose-derived stem cells (ADSCs) in alginate beads co-cultured with annulus fibrosus (AF) or nucleus pulposus (NP) tissues isolated from lumbar discs. a The co-culture system. b Gene expression of type II collagen and aggrecan in alginate beads with ADSCs co-cultured with AF or NP tissues