text:  MDA shp53, TGFbeta treated, biological replicate C human metastatic breast cell line MDA-MB-231, infected with a Retroviral construct expressing small-hairpin RNA against TP53 (shp53), treated with TGFbeta (5ug/ml) for 3 hrs, mutant-p53 depleted MDA-MB-231 cells mutant-p53 depleted cells; TGFbeta treated