title: MicroRNAs and parallel stem cell lives.
abstract: A new study by Shimono et al. (2009) demonstrates that certain microRNAs that regulate the self-renewal factor BMI1 are downregulated in purified populations of normal mammary epithelial stem cells and breast tumor-initiating cells. These findings have important implications for the regulation of self-renewal and differentiation by microRNAs and suggest new ways of targeting cancer stem cells.
authors: Hospital for Sick Children, University of Toronto, Toronto M5G1X8, Canada. peter.dirks@sickkids.ca
authors: Peter B
authors: PB
authors: Dirks
mesh_terms: D001940:Breast / Q000166:cytology; D001943:Breast Neoplasms / Q000235:genetics; D015536:Down-Regulation; D006801:Humans; D035683:MicroRNAs / Q000378:metabolism*; D014411:Neoplastic Stem Cells / Q000166:cytology / Q000378:metabolism*; D009687:Nuclear Proteins / Q000235:genetics; D063150:Polycomb Repressive Complex 1; D011518:Proto-Oncogene Proteins / Q000235:genetics; D012097:Repressor Proteins / Q000235:genetics; D013234:Stem Cells / Q000166:cytology / Q000378:metabolism*
chemical_list: C069077:BMI1 protein, human; D035683:MicroRNAs; D009687:Nuclear Proteins; D011518:Proto-Oncogene Proteins; D012097:Repressor Proteins; D063150:Polycomb Repressive Complex 1