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. 2012 Aug 30;10:179. doi: 10.1186/1477-7819-10-179

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Copyright ©2012 Yu et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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I: Western blot analysis of HtrA1 protein expression for each group of Eca-109 cells. II: The relative changes of the HtrA1 protein expression levels in each group. III: Measurement of the number of cells crossing the Transwell invasion chamber. IV: Bright field microscopy of each group of Eca-109 cells stained with crystal violet. (A) The untransfected control group; (B) the pcDNA3.1-HtrA1-transfected group; (C) the control siRNA-transfected group; (D) the HtrA1 siRNA-transfected group. **p < 0.01.