Figure 4From: Paradoxical antiproliferative effect by a murine mammary tumor-derived epithelial cell line LM-234ep cells overgrow LM-234mf cells. Cells were co-cultured at a 1:1 ratio and immunostained for cytokeratin on days 4 (A and B) and 8 (C and D) to distinguish LM-234ep (cytokeratin positive) from LM-234mf cells. Note the predominance of LM-234ep over LM-234mf cells on day 8. Magnification bar, 100 μm.Back to article page