<p>(A) Invasion assay of H1650 cells treated with the drugs as described in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0194341#pone.0194341.g001" target="_blank">Fig 1</a>. The Transwell invasion assay showed that Dex-IR suppressed the invasion of H1650 cells. Images were captured at a magnification of 400× (A, left panel). Scale bars, 100 μm. Graphical representation of the number of invasive H1650 cells per microscopic field. Each column and bar shows the SEM from three independent experiments (*<i>P</i> < 0.05 <i>vs</i>. vehicle) (A, right panel). (B) Inhibition of MMP9 activity in conditioned medium from H1650 cells treated with Dex-IR at the indicated concentration and incubated for 18 h was evaluated using gelatin zymography. Representative data from a single experiment are shown. The left lanes are standard markers. (C) qRT-PCR analysis of the MMP2, MMP9, integrin α2, and integrin α5 gene expression in cells 6 h after treatment with drugs. Each experiment was repeated three times and the results shown are representative of the three independent experiments. The bar graph shows the mean ± SEM of three independent experiments (*P < 0.05 vs. MMP2 expression in vehicle; <sup>#</sup>P < 0.05 vs. MMP9 expression in vehicle; <sup>§</sup>P < 0.05 vs. integrin α2 expression in vehicle).</p

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