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Figure 2.

Figure 2

Proliferation of MMEC with conditioned media or LA7 feeder cells. (○) MMEC alone in usual culture medium; (◆) MMEC alone in medium conditioned by MDA‐MB‐231 cells, which secrete TGFα; (□) MMEC alone in medium conditioned by LA7 cells; (▴) MMEC co‐cultured with lethally irradiated LA7 cells; (Δ) total number of MMEC + LA7 feeders in co‐culture. All data points were obtained by FACs analysis similar to that of Figure 1. This experiment is representative of all experiments of this type. Each curve on the graph differs significantly from each other curve at P < 0.01.