“…However, no correlation with the metastatic phenotype could be determined. An extensive characterization of gelatin-degrading metalloproteinase activities (both calcium-dependent and -independent) in the original Dunning R-3327 tumor in nude mice revealed predominant forms at 64, 71, and 76 kD, as well as at 91 and 98 kD [42]. Of these activities we can observe here the equivalents of 71 and 76 kD in MATLu and MATLyLu cell lines, and of the 91-kD band in the AT cell lines.…”