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. Author manuscript; available in PMC: 2011 May 1.
Published in final edited form as: Biomaterials. 2010 Feb 24;31(14):3920–3929. doi: 10.1016/j.biomaterials.2010.01.118

Fig. 1.

Fig. 1

(A) DNA quantification analysis by PicoGreen™ DNA assay showed cells proliferating over time in different experimental groups. (B) Quantitative analysis of Ki67+ staining MCF10A cells counted in different microscopic fields. An inhibitory effect of stromal cells on epithelial cell growth was observed in the tri-cultures and co-culture during the first week. A significant difference between tri-culture and co-cultures was observed (*p < 0.05), while no difference exists between the two co-culture groups (#p > 0.05). The percentage of positive staining cells in each group decreased over time.