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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: Gene Ther. 2010 May 13;17(10):1200–1205. doi: 10.1038/gt.2010.66

Figure 1. MMP-9 expression in brain tumor cell lines.

Figure 1

A. Western blot analysis of MMP-9 expression in brain tumor cell lines. β-actin was visualized as a loading control. B. MMP-9 levels in untransfected (−) and transfected (+) SK-N-AS and U373 cells. Arrows point to the pro (92 kD) and mature (88 kD) forms of MMP-9. C. Gelatin zymography of conditioned medium from untransfected and MMP-9 transfected SK-N-AS cells. White bands are indicative of gelatinase activity (arrow). D. Growth curves of untransfected and MMP-9 transfected SK-N-AS cells in culture. Equal numbers of cells were seeded, grown for 48 or 72h, and counted. Mean values of triplicates +/− SD.