Figure 2From: Matrix metalloproteinase 28, a novel matrix metalloproteinase, is constitutively expressed in human intervertebral disc tissue and is present in matrix of more degenerated discsCytoplasmic localization of matrix metalloproteinase 28 in cells of the outer annulus. (a) Cytoplasmic localization of matrix metalloproteinase 28 in spindle-shaped annulus cells in the outer annulus of a Thompson Grade III disc. (b) Negative control processed with goat IgG. Magnification: ×450.Back to article page