Figure 1.

Biological responses of NMuMG cells to transforming growth factor beta (TGF-β) treatment. (A) NMuMG cells were treated for 24 hours with 4 ng/ml TGF-β1 or left untreated (control), and were examined by phase-contrast microscopy. TGF-β1-treated cells exhibited an epithelial to mesenchymal transition. (B) NMuMG cells were treated for 24 hours with 4 ng/ml TGF-β1 or left untreated (control). The cells were pulsed with 3H-thymidine for the final 2 hours of the treatment period. CPM, counts per minute.

Xie et al. Breast Cancer Res 2003 5:R187-R198   doi:10.1186/bcr640
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