Figure 5From: Asporin, a susceptibility gene in osteoarthritis, is expressed at higher levels in the more degenerate human intervertebral discImmunolocalization of asporin in vitro. First panel: (a) annulus cells in monolayer show uniform localization; (b) monolayer negative control; (c) three-dimensional cultured annulus cells also show expression of asporin in all cells; (d) three-dimensional culture negative control. (a and b, × 66; c and d, × 275).Back to article page