T2 |
0-635 |
METHODS |
denotes |
Rabbit corneal myofibroblasts were identified by immunodetection of alpha-smooth muscle (alpha-SM)-actin. MT1-MMP, MMP-2, MMP-9, and tissue inhibitor of matrix metalloproteinase (TIMP)-2 were detected by immunofluorescence. Cells were treated with 100 nM cPAF, with or without the PAF antagonist BN 50730 or the furin inhibitor nona-D-arg-NH(2). Gene-expression levels for furin, urokinase plasminogen activator, MMP-2, MMP-9, MT1-MMP, and TIMP-2 were determined by real-time PCR. Protein expression was assessed by Western blot. MMP-2 and -9 activity was determined by gelatin zymography. Active MT1-MMP levels were measured by ELISA. |