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Invasion assay. (A) Cancer cell invasion was investigated using a Corning® BioCoat™ Matrigel® Invasion Chamber. Magnification, ×100. Scale bar=50 µm. (B) The number of invasive A549 cells was significantly reduced following treatment with cryptotanshinone compared with the control. Data are presented as the mean ± standard deviation. *P<0.05 vs. NC group. CT, cryptotanshinone-treated; NC, negative control.
