Fig. 3.

The combination of SLC-0111 and Cis-Pt drastically reduces HNSCC cell migration and invasion. A-B Migration assay of FaDu and SCC-011 cells grown under hypoxia (1%O₂) and treated with Cis-Pt (1 µM), SLC-0111 (100 µM) and combination of the two drugs for 24 h was performed using trans-well chamber containing inserts of polycarbonate membranes with 8 μm pores. In the lower chamber, a medium containing 10% FBS was added and used as chemo-attractant. C-D Invasion assay of FaDu and SCC-011 cells was performed for 72 h as described above on membranes coated with Matrigel. Representative photographs of at least three different experiments are shown. The results are expressed as percent of migrating and invading cells considering the untreated control as 100%. Bars depict mean ± SD of three independent experiments (** p < 0.0001; * p < 0.001). E Western blot analysis of expression levels of MMP-2 in FaDu and SCC-011 grown under hypoxia (1% O₂) and treated with Cis-Pt (1 µM), SLC-0111 (100 µM) and combination of the two drugs for 72 h. Actin was used as loading control