Cells were seeded in Costar six well plates (Corning, NY, USA). After reaching 50% confluence, culture media was substituted with Opti-MEM (GIBCO/Life Technologies, Carlsbad, CA). Cells were transfected with interference RNA (siRNA) [ECM-1 Silencer Select Pre-designed siRNA, 100–200nM, targeting exon 6, ECM-1 Silencer Select Pre-designed siRNA, 100–200nM, targeting exon 2, S100A4 Silencer Select Pre-designed siRNA, 100–200nM, (Ambion/Life Technologies, Carlsbad, CA) ] using Lipofectamine RNAiMAX (Invitrogen/Life Technologies, Carlsbad, CA). Silencer Select Negative Control #1 siRNA (Ambion/Life Technologies, Carlsbad, CA) was used as control siRNA. Adequate downregulation was assessed by western blotting.
+ Open protocol